Index: ESL.cpp
===================================================================
--- ESL.cpp	(revision 1067)
+++ ESL.cpp	(working copy)
@@ -161,9 +161,9 @@
 
     // Выводим заголовок сообщения
     for(MessageHeader::const_iterator it = header.begin(), e = header.end(); it != e; ++it) {
-	res.append(it->fieldName);
+      res.append(it->fieldName.toUtf8());
 	res.append(": ");
-	res.append(it->fieldValue);
+	res.append(it->fieldValue.toUtf8());
 	res.append("\n");
     }
 
Index: MC04Dispatcher.cpp
===================================================================
--- MC04Dispatcher.cpp	(revision 1067)
+++ MC04Dispatcher.cpp	(working copy)
@@ -1,7 +1,7 @@
 //Добавить в make-файл проекта, в строку CXXFLAGS, следующее -finput-charset="cp1251" -fexec-charset="cp1251", перед $(DEFINES)
 #include <QApplication>
 #include <QMessageBox>
-#include <QDesktopWidget>
+#include <QScreen>
 #include <QLabel>
 #include <QFrame>
 #include <QDialog>
@@ -170,7 +170,8 @@
         pLogger.info("Начат процесс подключения к FreeSwitch серверу");
         QDialog *pStartDialog = new CStartupDlg();
         int iDlgResult = pStartDialog->exec();
-        currentConfig.iLoginMonitor = QApplication::desktop()->primaryScreen();
+        // currentConfig.iLoginMonitor = QGuiApplication::primaryScreen()->screenNumber();
+	   currentConfig.iLoginMonitor = QGuiApplication::screens().indexOf(QGuiApplication::primaryScreen());
         currentConfig.iXDialog = pStartDialog->x();
         currentConfig.iYDialog = pStartDialog->y();
         if (iDlgResult == QDialog::Rejected) {
Index: MC04Dispatcher.pro
===================================================================
--- MC04Dispatcher.pro	(revision 1067)
+++ MC04Dispatcher.pro	(working copy)
@@ -1,7 +1,9 @@
 CONFIG += qt
-QT += network xml widgets multimedia
+QT += network xml widgets multimedia core5compat
 RESOURCES = MC04Dispatcher.qrc
 PJPROJECT = pjproject-2.10
+CONFIG += c++17
+
 SOURCES += MC04Dispatcher.cpp MainAppFrameWindow3.cpp ProgLogger.cpp PJSIPSUA.cpp XMLConfig.cpp StartupDlg.cpp \
 	    TelephoneNumberDlg.cpp ESL.cpp SSHSFTPLink.cpp UserInfoDialog.cpp UserAddEditDialog.cpp \
 	    CommonQWidgetClasses.cpp userListModel.cpp userListView.cpp conferenceListModel.cpp \
Index: MainAppFrameWindow3.cpp
===================================================================
--- MainAppFrameWindow3.cpp	(revision 1067)
+++ MainAppFrameWindow3.cpp	(working copy)
@@ -13,9 +13,11 @@
 #include <QClipboard>
 #include <QMessageBox>
 #include <QToolTip>
-#include <QAudioDeviceInfo>
+#include <QAudioDevice>
+#include <QMediaDevices>
 #include <QNetworkInterface>
 #include <QToolButton>
+#include <QRecursiveMutex>
 #include <libssh/sftp.h>
 
 #include <iostream>
@@ -53,7 +55,8 @@
 extern QString myUri;
 extern QString myDomain;
 
-QMutex mutex(QMutex::Recursive);
+QRecursiveMutex mutex;
+// QMutex mutex(QMutex::Recursive);
 static bool bExitSignal = false;//Когда true, но посланно сообщение о закрытие главного окна приложения, все потоки связанные с главным окном должны немедленно прекратить работу
 static QString qsSoundRecordToPlay;//Если непустое, то аудиофайл с заданным именем проигрывается после получения сообщения о создание конференции audio и становиться пустой строкой
 static std::string sLastErrorFile;//Если непустое, то имя последнего аудиофайла, проигрывание которого завершилось с ошибкой, после того, как полученно сообщение play-file, это строка очищается
@@ -640,7 +643,7 @@
 
     pConnectionEditBottomWidgetLayout->addWidget(new QLabel("Локальный порт SIP:"));
     pSIPPortEdit = new QLineEdit();
-    pSIPPortEdit->setValidator(new QRegExpValidator(QRegExp("[0-9]+"), this));
+    pSIPPortEdit->setValidator(new QRegularExpressionValidator(QRegularExpression("[0-9]+"), this));
     pConnectionEditBottomWidgetLayout->addWidget(pSIPPortEdit);
     connect(pSIPPortEdit, SIGNAL(textEdited(const QString &)), this, SLOT(configurationChanged()));
     pConnectionEditBottomWidgetLayout->addWidget(new QLabel("Медиа-порт:"));
@@ -681,7 +684,7 @@
     pConnectionEditBottomWidgetLayout->addWidget(pReregistrationEditLabel);
     pReregistrationEdit = new QLineEdit();
     pReregistrationEdit->setPlaceholderText("3600");
-    pReregistrationEdit->setValidator(new QRegExpValidator(QRegExp("[0-9]+"), this));
+    pReregistrationEdit->setValidator(new QRegularExpressionValidator(QRegularExpression("[0-9]+"), this));
     connect(pReregistrationEdit, SIGNAL(textEdited(const QString &)), this, SLOT(configurationChanged()));
     pConnectionEditBottomWidgetLayout->addWidget(pReregistrationEdit);
     QLabel *pDialUpGatewayAddressLabel = new QLabel("Контекст для вызова ТСОП:");
@@ -713,7 +716,7 @@
     pConferencesEditTopLayout->addWidget(new QLabel("Имя основной конференции:"));
     pDefaultConferenceIdEdit = new QLineEdit();
     pDefaultConferenceIdEdit->setPlaceholderText(DEFAULT_DISPATCHER_ROOM_ID);
-    pDefaultConferenceIdEdit->setValidator(new QRegExpValidator(QRegExp("[\\w-]+"), this));
+    pDefaultConferenceIdEdit->setValidator(new QRegularExpressionValidator(QRegularExpression("[\\w-]+"), this));
     connect(pDefaultConferenceIdEdit, SIGNAL(textEdited(const QString &)), this, SLOT(configurationChanged()));
     pConferencesEditTopLayout->addWidget(pDefaultConferenceIdEdit);
 
@@ -725,7 +728,7 @@
     pConferencesEditTopLayout->addWidget(new QLabel("Префикс новой конференции:"));
     pNewConferencePrefix = new QLineEdit();
     pNewConferencePrefix->setPlaceholderText("конференция-");
-    pNewConferencePrefix->setValidator(new QRegExpValidator(QRegExp("[\\w-]+"), this));
+    pNewConferencePrefix->setValidator(new QRegularExpressionValidator(QRegularExpression("[\\w-]+"), this));
     connect(pNewConferencePrefix, SIGNAL(textEdited(const QString &)), this, SLOT(configurationChanged()));
     pConferencesEditTopLayout->addWidget(pNewConferencePrefix);
 
@@ -743,7 +746,7 @@
     pConferencesEditTopLayout->addWidget(new QLabel("Ожидание ответа перед включением Громкого Боя (сек):"));
     pAlarmDelayEdit = new QLineEdit();
     pAlarmDelayEdit->setPlaceholderText("30");
-    pAlarmDelayEdit->setValidator(new QRegExpValidator(QRegExp("[0-9]+"), this));
+    pAlarmDelayEdit->setValidator(new QRegularExpressionValidator(QRegularExpression("[0-9]+"), this));
     connect(pAlarmDelayEdit, SIGNAL(textEdited(const QString &)), this, SLOT(configurationChanged()));
     pConferencesEditTopLayout->addWidget(pAlarmDelayEdit);
 
@@ -750,7 +753,7 @@
     pConferencesEditTopLayout->addWidget(new QLabel("Ожидание ответа перед завершением вызова (сек):"));
     pCallTimeOutEdit = new QLineEdit();
     pCallTimeOutEdit->setPlaceholderText("120");
-    pCallTimeOutEdit->setValidator(new QRegExpValidator(QRegExp("[0-9]+"), this));
+    pCallTimeOutEdit->setValidator(new QRegularExpressionValidator(QRegularExpression("[0-9]+"), this));
     connect(pCallTimeOutEdit, SIGNAL(textEdited(const QString &)), this, SLOT(configurationChanged()));
     pConferencesEditTopLayout->addWidget(pCallTimeOutEdit);
 
@@ -758,7 +761,7 @@
     pConferencesEditTopLayout->addWidget(new QLabel("Отображать отключившихся абонентов (сек, 0 - вечно):"));
     pDisplayDisconnected = new QLineEdit();
     pDisplayDisconnected->setPlaceholderText("5");
-    pDisplayDisconnected->setValidator(new QRegExpValidator(QRegExp("[0-9]+"), this));
+    pDisplayDisconnected->setValidator(new QRegularExpressionValidator(QRegularExpression("[0-9]+"), this));
     connect(pDisplayDisconnected, SIGNAL(textEdited(const QString &)), this, SLOT(configurationChanged()));
     pConferencesEditTopLayout->addWidget(pDisplayDisconnected);
 
@@ -765,7 +768,7 @@
     pConferencesEditTopLayout->addWidget(new QLabel("Отображать неудачные вызовы (сек, 0 - вечно):"));
     pDisplayFailedCalls = new QLineEdit();
     pDisplayFailedCalls->setPlaceholderText("5");
-    pDisplayFailedCalls->setValidator(new QRegExpValidator(QRegExp("[0-9]+"), this));
+    pDisplayFailedCalls->setValidator(new QRegularExpressionValidator(QRegularExpression("[0-9]+"), this));
     connect(pDisplayFailedCalls, SIGNAL(textEdited(const QString &)), this, SLOT(configurationChanged()));
     pConferencesEditTopLayout->addWidget(pDisplayFailedCalls);
 
@@ -974,12 +977,14 @@
 	pSystemSoundsDeviceList = new QComboBox();
 	pSystemSoundsDeviceList->setItemDelegate(new QStyledItemDelegate);
 	pSystemSoundsDeviceList->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Preferred);
-	QList<QAudioDeviceInfo> SystemSoundDevices = QAudioDeviceInfo::availableDevices(QAudio::AudioOutput);
+	QList<QAudioDevice> SystemSoundDevices = QMediaDevices::audioOutputs();
 	for (int iCnt = 0; iCnt < SystemSoundDevices.size(); iCnt++) {
-	    pSystemSoundsDeviceList->addItem(SystemSoundDevices[iCnt].deviceName());
+	    pSystemSoundsDeviceList->addItem(SystemSoundDevices[iCnt].description());
 	}
 	if (currentConfig.sSystemSoundDeviceName.isEmpty()) {
-	    int iDefaultSystemSoundsItemIndex = pSystemSoundsDeviceList->findText(QAudioDeviceInfo::defaultOutputDevice().deviceName());
+	  // Получение описания устройства по умолчанию
+	  QString defaultDeviceName = QMediaDevices::defaultAudioOutput().description();
+	  int iDefaultSystemSoundsItemIndex = pSystemSoundsDeviceList->findText(defaultDeviceName);
 	    if (iDefaultSystemSoundsItemIndex != -1) pSystemSoundsDeviceList->setCurrentIndex(iDefaultSystemSoundsItemIndex);
 	    else pSystemSoundsDeviceList->setCurrentIndex(0);
 	} else {
@@ -1019,7 +1024,8 @@
 	QString qsValue = QString("%1").arg(currentConfig.iSystemSoundVolume, 0, 10) + '%';
 	pSystemSoundVolumeLabel->setText(qsValue);
 	if (currentConfig.bAlarmSoundPlay) {
-	    pErrorMessageWidget->setAudioDevice(currentConfig.sSystemSoundDeviceName.isEmpty() ? QAudioDeviceInfo::defaultOutputDevice().deviceName() : currentConfig.sSystemSoundDeviceName);
+	  QString defaultDeviceName = QMediaDevices::defaultAudioOutput().description();
+	  pErrorMessageWidget->setAudioDevice(currentConfig.sSystemSoundDeviceName.isEmpty() ? defaultDeviceName : currentConfig.sSystemSoundDeviceName);
 	} else {
 	    pErrorMessageWidget->setAudioDevice("");
 	}
@@ -1293,7 +1299,7 @@
 
 void MainAppFrameWindow3::absentApplyChecked()
 {
-    QStringList checkedList = pAbsentUsersLineEdit->text().split(' ', QString::SkipEmptyParts);
+    QStringList checkedList = pAbsentUsersLineEdit->text().split(' ', Qt::SkipEmptyParts);
     pAbsentUsersCombo->setCheckedItems(checkedList);
 }
 
@@ -1377,7 +1383,8 @@
     pErrorMessageWidget->stopSoundTest();
 
     // надо вернуть прежнее устройство после окончания теста!!!
-    pErrorMessageWidget->setAudioDevice(currentConfig.sSystemSoundDeviceName.isEmpty() ? QAudioDeviceInfo::defaultOutputDevice().deviceName() : currentConfig.sSystemSoundDeviceName);
+    QString defaultDeviceName = QMediaDevices::defaultAudioOutput().description();
+    pErrorMessageWidget->setAudioDevice(currentConfig.sSystemSoundDeviceName.isEmpty() ? defaultDeviceName : currentConfig.sSystemSoundDeviceName);
 }
 
 void MainAppFrameWindow3::eslConnectionDead(bool dead)
@@ -1426,7 +1433,8 @@
                     {
                         QTextCodec *pLocaleCodec = pStartLocalCodec;
                         QTextStream textinput(&PhonebookFile);
-                        textinput.setCodec(pLocaleCodec);
+                        // textinput.setEncoding(pLocaleCodec);
+			textinput.setEncoding(QStringConverter::Utf8);
                         QString qsLine;
                         while (true) {
                             qsLine = textinput.readLine();
@@ -1571,11 +1579,12 @@
     }
 
     // Выводим остальные поля
-    QRegExp skip("^(Номер|Имя|Отметка|Комментарий)$");
+    QRegularExpression skip("^(Номер|Имя|Отметка|Комментарий)$");
     for(PhoneBookModel::InfoMap::const_iterator it = phoneBookModel->begin(row), e = phoneBookModel->end(row);
 	    it != e; ++it)
     {
-	if(skip.exactMatch(it->first) || PhoneBookModel::isPhoneNumber(it->second))
+      // skip.setPatternOptions(QRegularExpression::AnchoredMatchOption);
+      if(skip.match(it->first).hasMatch() || PhoneBookModel::isPhoneNumber(it->second))
 	    continue;
 
 	QLabel * l = new QLabel(it->first);
@@ -1722,11 +1731,11 @@
 
     if(phoneBookIndex.isValid()) {
 	// Выводим дополнительные поля
-	QRegExp skip("^(Номер|Имя|Комментарий)$");
+	QRegularExpression skip("^(Номер|Имя|Комментарий)$");
 	for(PhoneBookModel::InfoMap::const_iterator it = phoneBookModel->begin(row), e = phoneBookModel->end(row);
 		it != e; ++it)
 	{
-	    if(skip.exactMatch(it->first) || PhoneBookModel::isPhoneNumber(it->second))
+	  if(skip.match(it->first).hasMatch() || PhoneBookModel::isPhoneNumber(it->second))
 		continue;
 
 	    l = new QLabel(it->first);
@@ -2417,7 +2426,6 @@
         QString sSaveText;
         QXmlStreamWriter xmlwriter(&sSaveText);
         xmlwriter.setAutoFormatting(true);
-        xmlwriter.setCodec(QTextCodec::codecForName("UTF-8"));
         xmlwriter.writeStartDocument();
         xmlwriter.writeStartElement("include");
 
@@ -2981,7 +2989,7 @@
     currentConfig.bShowNumRegistered = pShowNumRegistered->isChecked();
 
     currentConfig.UsersAbsentWarningList.clear();
-    currentConfig.UsersAbsentWarningList = pAbsentUsersLineEdit->text().split(' ', QString::SkipEmptyParts);
+    currentConfig.UsersAbsentWarningList = pAbsentUsersLineEdit->text().split(' ', Qt::SkipEmptyParts);
     userListModel->setMandatoryUserList(currentConfig.UsersAbsentWarningList);
 
     currentConfig.iInputVolume = pSoundInputVolume->value();
@@ -3331,8 +3339,12 @@
 
     // TODO присваивая значение переменной origination_caller_id_number, имя конференции
     // должно преобразовываться так, чтобы давать валидное username!
-    QRegExp re("^[A-Za-z0-9\\-_.!~*'()]+$");
-    QString username = re.indexIn(conference) == 0 ? conference : "conference";
+    QRegularExpression re("^[A-Za-z0-9\\-_.!~*'()]+$");
+    auto match = re.match(conference);
+    QString username = match.hasMatch() && match.capturedStart() == 0 
+        ? match.captured() 
+        : "conference";
+    // QString username = re.match(conference) == 0 ? conference : "conference";
 
     // Формируем команду вызова в конференцию
     if(pstn) {
Index: MainAppFrameWindow3.h
===================================================================
--- MainAppFrameWindow3.h	(revision 1067)
+++ MainAppFrameWindow3.h	(working copy)
@@ -27,7 +27,8 @@
 #include <QFileInfo>
 #include <QTimer>
 #include <QThread>
-#include <QNetworkConfigurationManager>
+// #include <QTNetwork/QNetworkConfigurationManager>
+#include <QNetworkInformation>
 #include <QPlainTextEdit>
 #include <vector>
 #include <map>
Index: PJSIPSUA.cpp
===================================================================
--- PJSIPSUA.cpp	(revision 1067)
+++ PJSIPSUA.cpp	(working copy)
@@ -36,7 +36,7 @@
 #endif
 
 extern XMLConfig currentConfig;
-extern QTextCodec *pStartLocalCodec;
+extern QStringConverter *pStartLocalCodec;
 
 int CPJSIPSUA::iConfSlot = -1;
 int CPJSIPSUA::iOutputVolume = 100;
@@ -511,7 +511,12 @@
         pj_status_t status = ::pjmedia_aud_dev_get_info(i, &dev_info);
         if (status != PJ_SUCCESS) continue;
         if (!dev_info.output_count) continue;
-        SndOutputDeviceList.push_back(pStartLocalCodec->toUnicode(dev_info.name));
+	auto decoder = pStartLocalCodec ?
+	  QStringDecoder(QStringConverter::encodingForName(pStartLocalCodec->name()).value_or(QStringConverter::Utf8)) :
+	  QStringDecoder(QStringConverter::System);
+	// return decoder.decode(dev_info.name);
+	SndOutputDeviceList.push_back(decoder.decode(dev_info.name));
+        // SndOutputDeviceList.push_back(pStartLocalCodec->toUnicode(dev_info.name));
     }
     return (!SndOutputDeviceList.empty()) ? true : false;
 }
@@ -529,7 +534,12 @@
         pj_status_t status=::pjmedia_aud_dev_get_info(i, &dev_info);
         if (status != PJ_SUCCESS) continue;
         if (!dev_info.input_count) continue;
-        SndInputDeviceList.push_back(pStartLocalCodec->toUnicode(dev_info.name));
+	auto decoder = pStartLocalCodec ?
+	  QStringDecoder(QStringConverter::encodingForName(pStartLocalCodec->name()).value_or(QStringConverter::Utf8)) :
+	  QStringDecoder(QStringConverter::System);
+	// return decoder.decode(dev_info.name);
+	SndInputDeviceList.push_back(decoder.decode(dev_info.name));
+        // SndInputDeviceList.push_back(pStartLocalCodec->toUnicode(dev_info.name));
     }
     return (!SndInputDeviceList.empty()) ? true : false;
 }
@@ -544,7 +554,11 @@
     ::memset(&dev_info, 0, sizeof(pjmedia_aud_dev_info));
     pj_status_t status = ::pjmedia_aud_dev_get_info(PJMEDIA_AUD_DEFAULT_PLAYBACK_DEV, &dev_info);
     if (status==PJ_SUCCESS) {
-        return pStartLocalCodec->toUnicode(dev_info.name);
+      auto decoder = pStartLocalCodec ?
+        QStringDecoder(QStringConverter::encodingForName(pStartLocalCodec->name()).value_or(QStringConverter::Utf8)) :
+        QStringDecoder(QStringConverter::System);
+    return decoder.decode(dev_info.name);
+        // return pStartLocalCodec->toUnicode(dev_info.name);
     } else
 	return QString();
 }
@@ -559,7 +573,11 @@
     ::memset(&dev_info, 0, sizeof(pjmedia_aud_dev_info));
     pj_status_t status = ::pjmedia_aud_dev_get_info(PJMEDIA_AUD_DEFAULT_CAPTURE_DEV, &dev_info);
     if (status == PJ_SUCCESS) {
-        return pStartLocalCodec->toUnicode(dev_info.name);
+      auto decoder = pStartLocalCodec ?
+        QStringDecoder(QStringConverter::encodingForName(pStartLocalCodec->name()).value_or(QStringConverter::Utf8)) :
+        QStringDecoder(QStringConverter::System);
+      return decoder.decode(dev_info.name);    
+      // return pStartLocalCodec->toUnicode(dev_info.name);
     } else 
 	return QString();
 }
@@ -615,7 +633,12 @@
         return (status == PJ_SUCCESS) ? true : false;
     } else {
 	// Перекодируем имя устройства в кодировку локали
-	std::string soundDevice = pStartLocalCodec->fromUnicode(sSoundOutputDevice).toStdString();
+      auto encoder = pStartLocalCodec ? 
+                 QStringEncoder(QStringConverter::encodingForName(pStartLocalCodec->name()).value_or(QStringConverter::Utf8)) :
+                 QStringEncoder(QStringConverter::System);
+      QByteArray encoded = encoder.encode(sSoundOutputDevice);
+      std::string soundDevice = encoded.toStdString();
+      // std::string soundDevice = pStartLocalCodec->fromUnicode(sSoundOutputDevice).toStdString();
 
         unsigned int ucount = ::pjmedia_aud_dev_count();
         if (!ucount) {
@@ -651,7 +674,12 @@
         return (status == PJ_SUCCESS) ? true : false;
     } else {
 	// Перекодируем имя устройства в кодировку локали
-	std::string soundDevice = pStartLocalCodec->fromUnicode(sSoundInputDevice).toStdString();
+      auto encoder = pStartLocalCodec ? 
+                 QStringEncoder(QStringConverter::encodingForName(pStartLocalCodec->name()).value_or(QStringConverter::Utf8)) :
+                 QStringEncoder(QStringConverter::System);
+      QByteArray encoded = encoder.encode(sSoundInputDevice);
+      std::string soundDevice = encoded.toStdString();
+	// std::string soundDevice = pStartLocalCodec->fromUnicode(sSoundInputDevice).toStdString();
 
         unsigned int ucount = ::pjmedia_aud_dev_count();
         if (!ucount) {
@@ -678,7 +706,12 @@
 void CPJSIPSUA::startSoundTest(const QString &sSoundOutputDevice)
 {
     // Перекодируем имя устройства в кодировку локали
-    std::string soundDevice = pStartLocalCodec->fromUnicode(sSoundOutputDevice).toStdString();
+  auto encoder = pStartLocalCodec ? 
+    QStringEncoder(QStringConverter::encodingForName(pStartLocalCodec->name()).value_or(QStringConverter::Utf8)) :
+    QStringEncoder(QStringConverter::System);
+  QByteArray encoded = encoder.encode(sSoundOutputDevice);
+  std::string soundDevice = encoded.toStdString();
+    // std::string soundDevice = pStartLocalCodec->fromUnicode(sSoundOutputDevice).toStdString();
 
     // Ищем устройства ввода и вывода
     unsigned int ucount = ::pjmedia_aud_dev_count();
Index: ProgLogger.cpp
===================================================================
--- ProgLogger.cpp	(revision 1067)
+++ ProgLogger.cpp	(working copy)
@@ -8,7 +8,7 @@
 ProgLogger pDebugLogger("logs/debug.log");
 
 extern XMLConfig currentConfig;
-extern QTextCodec *pStartLocalCodec;
+extern QStringEncoder *pStartLocalCodec;
 
 static void myMessageOutput(QtMsgType type, const QMessageLogContext & /* context */, const QString &msg)
 {
Index: StartupDlg.cpp
===================================================================
--- StartupDlg.cpp	(revision 1067)
+++ StartupDlg.cpp	(working copy)
@@ -1,5 +1,5 @@
-#include <QApplication>
-#include <QDesktopWidget>
+#include <QGuiApplication>
+#include <QScreen>
 #include <QLabel>
 #include <QIcon>
 #include <QPixmap>
@@ -32,8 +32,8 @@
 CStartupDlg::CStartupDlg() :QDialog(NULL), StatusDisp(24)
 {
     this->setWindowTitle("MC04-Dispatcher-" + QString(PROG_VERSION) + " - Авторизация");
-    QDesktopWidget *pDesktopWidget = QApplication::desktop();
-    QRect geometryRect = pDesktopWidget->availableGeometry(-1);
+    QScreen *pDesktopWidget = QGuiApplication::primaryScreen();
+    QRect geometryRect = QGuiApplication::primaryScreen()->availableGeometry();
     this->move(geometryRect.width() / 2 - this->frameGeometry().width() / 2, geometryRect.height() / 2 - this->frameGeometry().width() / 2);
     this->setWindowFlags(Qt::Dialog | Qt::WindowTitleHint | Qt::WindowCloseButtonHint);
     QIcon ProgrammDlgIcon;
Index: TelephoneNumberDlg.cpp
===================================================================
--- TelephoneNumberDlg.cpp	(revision 1067)
+++ TelephoneNumberDlg.cpp	(working copy)
@@ -1,5 +1,5 @@
 #include <QDebug>
-#include <QRegExpValidator>
+#include <QRegularExpressionValidator>
 #include <QVBoxLayout>
 #include <QLabel>
 #include <QLineEdit>
@@ -43,7 +43,7 @@
     editorLayout->setSpacing(0);
     numberEditor = new QLineEdit();
     editorLayout->addWidget(numberEditor, 1);
-    numberEditor->setValidator(new QRegExpValidator(QRegExp("[0-9\\*#]+"), this));
+    numberEditor->setValidator(new QRegularExpressionValidator(QRegularExpression("[0-9\\*#]+"), this));
     connect(numberEditor, SIGNAL(textChanged(const QString&)), this, SLOT(numbertextEdited(const QString &)));
     connect(numberEditor, SIGNAL(returnPressed()), this, SLOT(returnPressed()));
     QPushButton * numberClear = new QPushButton();
Index: UserAddEditDialog.cpp
===================================================================
--- UserAddEditDialog.cpp	(revision 1067)
+++ UserAddEditDialog.cpp	(working copy)
@@ -1,8 +1,8 @@
 #include <QTextCodec>
 #include <QMutex>
 #include <QIcon>
-#include <QApplication>
-#include <QDesktopWidget>
+#include <QGuiApplication>
+#include <QScreen>
 #include <QHeaderView>
 #include <QMessageBox>
 #include <iostream>
@@ -30,8 +30,8 @@
     if (OperatorDetailsList.size()>1 && OperatorDetailsList.size() <= 3 && !bNewUser) {
         this->setMinimumWidth(456 + (OperatorDetailsList.size())*(iInfoPanelWidth));
     } else if (OperatorDetailsList.size() > 3) {
-        QDesktopWidget *pDesktopWidget = QApplication::desktop();
-        QRect geometryRect = pDesktopWidget->availableGeometry(-1);
+        QScreen *pDesktopWidget = QGuiApplication::primaryScreen();
+	QRect geometryRect = QGuiApplication::primaryScreen()->availableGeometry();
         int iPlannedWidth = 456 + (OperatorDetailsList.size())*(iInfoPanelWidth);
         if ((this->x() + iPlannedWidth) <= (geometryRect.width() - this->x()))  this->setMinimumWidth(456 + (OperatorDetailsList.size())*(iInfoPanelWidth));
         else {
@@ -58,7 +58,8 @@
     TopDlgWidget.setHandleWidth(1);//Ширина полосы изменения размеров окон приложения составляет 1 пиксел
     TopDlgWidget.setContentsMargins(0, 0, 0, 0);//граница между полосой изменения размеров и окном программы внутри неё 0 пикселов
     TopDlgWidget.setChildrenCollapsible(false);//Размер окна не может быть изменён до 0 с помощью полосы прокрутки
-    QPalette DlgWidgetPalette = ((QApplication *)QCoreApplication::instance())->palette(&TopDlgWidget);//изменяем цвет полосы прокрутки
+    QPalette DlgWidgetPalette = TopDlgWidget.palette();
+    // QPalette DlgWidgetPalette = ((QGuiApplication *)QCoreApplication::instance())->palette(&TopDlgWidget);//изменяем цвет полосы прокрутки
     DlgWidgetPalette.setColor(QPalette::Active, QPalette::Window, QColor(0xDA, 0xDA, 0xDA));
     DlgWidgetPalette.setColor(QPalette::Inactive, QPalette::Window, QColor(0xDA, 0xDA, 0xDA));
     TopDlgWidget.setPalette(DlgWidgetPalette);
Index: errorPanel.cpp
===================================================================
--- errorPanel.cpp	(revision 1067)
+++ errorPanel.cpp	(working copy)
@@ -4,8 +4,9 @@
  *
  ************************************************************************************************/
 #include <QPainter>
-#include <QAudioOutput>
-#include <QAudioDeviceInfo>
+// #include <QAudioOutput>
+#include <QAudioDevice>
+#include <QMediaDevices>
 #include <QAudioFormat>
 #include <QDebug>
 #include <QStyleOption>
@@ -103,10 +104,10 @@
 	return;
 
     // Ищем переданное нам устройство в списке доступных
-    QList<QAudioDeviceInfo> systemSoundDevices = QAudioDeviceInfo::availableDevices(QAudio::AudioOutput);
+    QList<QAudioDevice> systemSoundDevices = QMediaDevices::audioOutputs();
     int dev = -1;
     for (int i = 0; i < systemSoundDevices.size(); i++) {
-	if (systemSoundDevices[i].deviceName() == devName) {
+	if (systemSoundDevices[i].description() == devName) {
 	    dev = i;
 	    break;
 	}
@@ -124,40 +125,53 @@
 	// QAudioDeviceInfo::preferredFormat() может вернуть формат, не поддерживаемый аудиокартой!
 	// Пытаемся найти поддерживаемый формат полным перебором.
 	bool found = false;
-	QList<int> sampleRates				=	systemSoundDevices[dev].supportedSampleRates();
-	QList<int> channelCounts			=	systemSoundDevices[dev].supportedChannelCounts();
-	QList<int> sampleSizes				=	systemSoundDevices[dev].supportedSampleSizes();
-	QList<QAudioFormat::Endian> byteOrders		=	systemSoundDevices[dev].supportedByteOrders();
-	QList<QAudioFormat::SampleType> sampleTypes 	=	systemSoundDevices[dev].supportedSampleTypes();
-	// Перебираем sample rates в обратном порядке (от большей к меньшей)
-	for(int i = sampleRates.size() - 1; !found && i >= 0; i--) {
-	    format.setSampleRate(sampleRates[i]);
-	    // Перебираем channel count
-	    for(QList<int>::const_iterator it = channelCounts.begin(), e = channelCounts.end(); !found && it != e; ++it) {
-		format.setChannelCount(*it);
-		// Перебираем sample size
-		for(QList<int>::const_iterator it = sampleSizes.begin(), e = sampleSizes.end(); !found && it != e; ++it) {
-		    format.setSampleSize(*it);
-		    // Перебираем byte order
-		    for(QList<QAudioFormat::Endian>::const_iterator it = byteOrders.begin(), e = byteOrders.end(); !found && it != e; ++it) {
-			format.setByteOrder(*it);
-			// Перебираем sample type
-			for(QList<QAudioFormat::SampleType>::const_iterator it = sampleTypes.begin(), e = sampleTypes.end(); it != e; ++it) {
-			    format.setSampleType(*it);
+	int sampleRates				=	systemSoundDevices[dev].maximumSampleRate();
+	int channelCounts			=	systemSoundDevices[dev].maximumChannelCount();
+	QList<QAudioFormat::SampleFormat> sampleSizes	=	systemSoundDevices[dev].supportedSampleFormats();
+	// QList<QAudioFormat::Endian> byteOrders		=	systemSoundDevices[dev].supportedByteOrders();
+	QList<QAudioFormat::SampleFormat> sampleTypes 	=	systemSoundDevices[dev].supportedSampleFormats();
+	format.setSampleRate(sampleRates);
+	format.setChannelCount(channelCounts);
+	for(QList<QAudioFormat::SampleFormat>::const_iterator it = sampleTypes.begin(), e = sampleTypes.end(); it != e; ++it) {
+			    format.setSampleFormat(*it);
 			    if(systemSoundDevices[dev].isFormatSupported(format)) {
 				found = true;
 				break;
 			    }
 			}
-		    }
-		}
-	    }
-	}
+	// // Перебираем sample rates в обратном порядке (от большей к меньшей)
+	// for(int i = sampleRates.size() - 1; !found && i >= 0; i--) {
+	//     format.setSampleRate(sampleRates[i]);
+	//     // Перебираем channel count
+	//     for(QList<int>::const_iterator it = channelCounts.begin(), e = channelCounts.end(); !found && it != e; ++it) {
+	// 	format.setChannelCount(*it);
+	// 	// Перебираем sample size
+	// 	for(QList<int>::const_iterator it = sampleSizes.begin(), e = sampleSizes.end(); !found && it != e; ++it) {
+	// 	    format.setSampleSize(*it);
+	// 	    // Перебираем byte order
+	// 	    for(QList<QAudioFormat::Endian>::const_iterator it = byteOrders.begin(), e = byteOrders.end(); !found && it != e; ++it) {
+	// 		format.setByteOrder(*it);
+	// 		// Перебираем sample type
+	// 		for(QList<QAudioFormat::SampleType>::const_iterator it = sampleTypes.begin(), e = sampleTypes.end(); it != e; ++it) {
+	// 		    format.setSampleType(*it);
+	// 		    if(systemSoundDevices[dev].isFormatSupported(format)) {
+	// 			found = true;
+	// 			break;
+	// 		    }
+	// 		}
+	// 	    }
+	// 	}
+	//     }
+	// }
     }
 
     if(systemSoundDevices[dev].isFormatSupported(format)) {
 	qDebug() << "ErrorPanel::setAudioDevice(): selected format:" << format;
-	audioOutput = new QAudioOutput(systemSoundDevices[dev], format);
+	QAudioFormat format;
+	format.setSampleRate(44100);
+	format.setChannelCount(2);
+	format.setSampleFormat(QAudioFormat::Int16);
+	audioOutput = new QAudioSink(systemSoundDevices[dev], format);
 	connect(audioOutput, SIGNAL(stateChanged(QAudio::State)), this, SLOT(handleStateChanged(QAudio::State)));
 	audioOutput->setVolume(alarmVolume / 100.0f);
 
@@ -197,7 +211,8 @@
     QAudioBuffer buffer = decoder->read();
 
     if(buffer.isValid()) {
-	audioBuffer.buffer().append((const char *)buffer.constData(), buffer.byteCount());
+      const char *data = buffer.constData<char>();
+      audioBuffer.buffer().append(data, buffer.byteCount());
     } else {
 	qCritical() << "ErrorPanel::audioDataReady(): buffer is invalid";
     }
Index: errorPanel.h
===================================================================
--- errorPanel.h	(revision 1067)
+++ errorPanel.h	(working copy)
@@ -13,6 +13,7 @@
 #include <QAudio>
 #include <QIcon>
 #include <QBuffer>
+#include <QAudioSink>
 
 class QAudioOutput;
 class QAudioDecoder;
@@ -49,7 +50,7 @@
     QTimer		timer;
     bool		canRemove;	// true - если истек таймер 5 секунд отображения текущего сообщения.
     bool		needRemove;	// true - текущее сообщение необходимо убрать после истечения 5 секунд
-    QAudioOutput *	audioOutput;	// вывод звукового сигнала при аварии
+    QAudioSink *	audioOutput;	// вывод звукового сигнала при аварии
     QFile		alarmSound;
     int			alarmVolume;	// текущая громкость
     bool		muted;		// true - вывод звукового сигнала отключен
Index: logModel.cpp
===================================================================
--- logModel.cpp	(revision 1067)
+++ logModel.cpp	(working copy)
@@ -26,7 +26,7 @@
 Qt::ItemFlags LogModel::flags(const QModelIndex &index) const
 {
     if (!index.isValid())
-	return 0;
+	return Qt::NoItemFlags;
 
     return Qt::ItemIsEnabled;
 }
Index: phoneBookModel.cpp
===================================================================
--- phoneBookModel.cpp	(revision 1067)
+++ phoneBookModel.cpp	(working copy)
@@ -8,6 +8,7 @@
 #include <QFile>
 #include <QStandardPaths>
 #include <QPainter>
+#include <QRegularExpression>
 #include "phoneBookModel.h"
 
 #define PHONE_BOOK_FILE		"phoneBook.xml"
@@ -38,7 +39,7 @@
 
     // Рисуем иконку с инициалами
     QString initials = "";
-    QStringList list = data.toUpper().split(QRegExp("\\s+"), QString::SkipEmptyParts);
+    QStringList list = data.toUpper().split(QRegularExpression("\\s+"), Qt::SkipEmptyParts);
     if(list.size() == 1) {
 	const QString & word = list[0];
 	initials += word[0];
@@ -163,7 +164,7 @@
 Qt::ItemFlags PhoneBookModel::flags(const QModelIndex &index) const
 {
     if (!index.isValid())
-	return 0;
+	return Qt::NoItemFlags;
 
     return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
 }
Index: pjproject-2.10/aconfigure
===================================================================
--- pjproject-2.10/aconfigure	(revision 1067)
+++ pjproject-2.10/aconfigure	(working copy)
@@ -1,9 +1,10 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for pjproject 2.x.
+# Generated by GNU Autoconf 2.72 for pjproject 2.x.
 #
 #
-# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+# Copyright (C) 1992-1996, 1998-2017, 2020-2023 Free Software Foundation,
+# Inc.
 #
 #
 # This configure script is free software; the Free Software Foundation
@@ -14,7 +15,8 @@
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
@@ -21,56 +23,57 @@
   # is contrary to our usage.  Disable this feature.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
-else
-  case `(set -o) 2>/dev/null` in #(
+else case e in #(
+  e) case `(set -o) 2>/dev/null` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 
 
+
+# Reset variables that may have inherited troublesome values from
+# the environment.
+
+# IFS needs to be set, to space, tab, and newline, in precisely that order.
+# (If _AS_PATH_WALK were called with IFS unset, it would have the
+# side effect of setting IFS to empty, thus disabling word splitting.)
+# Quoting is to prevent editors from complaining about space-tab.
 as_nl='
 '
 export as_nl
-# Printing a long string crashes Solaris 7 /usr/bin/printf.
-as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-# Prefer a ksh shell builtin over an external printf program on Solaris,
-# but without wasting forks for bash or zsh.
-if test -z "$BASH_VERSION$ZSH_VERSION" \
-    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='print -r --'
-  as_echo_n='print -rn --'
-elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='printf %s\n'
-  as_echo_n='printf %s'
-else
-  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
-    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
-    as_echo_n='/usr/ucb/echo -n'
-  else
-    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
-    as_echo_n_body='eval
-      arg=$1;
-      case $arg in #(
-      *"$as_nl"*)
-	expr "X$arg" : "X\\(.*\\)$as_nl";
-	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
-      esac;
-      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
-    '
-    export as_echo_n_body
-    as_echo_n='sh -c $as_echo_n_body as_echo'
-  fi
-  export as_echo_body
-  as_echo='sh -c $as_echo_body as_echo'
-fi
+IFS=" ""	$as_nl"
 
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# Ensure predictable behavior from utilities with locale-dependent output.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# We cannot yet rely on "unset" to work, but we need these variables
+# to be unset--not just set to an empty or harmless value--now, to
+# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh).  This construct
+# also avoids known problems related to "unset" and subshell syntax
+# in other old shells (e.g. bash 2.01 and pdksh 5.2.14).
+for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH
+do eval test \${$as_var+y} \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+
+# Ensure that fds 0, 1, and 2 are open.
+if (exec 3>&0) 2>/dev/null; then :; else exec 0</dev/null; fi
+if (exec 3>&1) 2>/dev/null; then :; else exec 1>/dev/null; fi
+if (exec 3>&2)            ; then :; else exec 2>/dev/null; fi
+
 # The user is always right.
-if test "${PATH_SEPARATOR+set}" != set; then
+if ${PATH_SEPARATOR+false} :; then
   PATH_SEPARATOR=:
   (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
     (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
@@ -79,13 +82,6 @@
 fi
 
 
-# IFS
-# We need space, tab and new line, in precisely that order.  Quoting is
-# there to prevent editors from complaining about space-tab.
-# (If _AS_PATH_WALK were called with IFS unset, it would disable word
-# splitting by setting IFS to empty value.)
-IFS=" ""	$as_nl"
-
 # Find who we are.  Look in the path if we contain no directory separator.
 as_myself=
 case $0 in #((
@@ -94,44 +90,28 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    test -r "$as_dir$0" && as_myself=$as_dir$0 && break
   done
 IFS=$as_save_IFS
 
      ;;
 esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
+# We did not find ourselves, most probably we were run as 'sh COMMAND'
 # in which case we are not to be found in the path.
 if test "x$as_myself" = x; then
   as_myself=$0
 fi
 if test ! -f "$as_myself"; then
-  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
   exit 1
 fi
 
-# Unset variables that we do not need and which cause bugs (e.g. in
-# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
-# suppresses any "Segmentation fault" message there.  '((' could
-# trigger a bug in pdksh 5.2.14.
-for as_var in BASH_ENV ENV MAIL MAILPATH
-do eval test x\${$as_var+set} = xset \
-  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
-done
-PS1='$ '
-PS2='> '
-PS4='+ '
 
-# NLS nuisances.
-LC_ALL=C
-export LC_ALL
-LANGUAGE=C
-export LANGUAGE
-
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
 # Use a proper internal environment variable to ensure we don't fall
   # into an infinite loop, continuously re-executing ourselves.
   if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
@@ -151,14 +131,15 @@
 esac
 exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
 # Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
-as_fn_exit 255
+# out after a failed 'exec'.
+printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
   fi
   # We don't want this to propagate to other subprocesses.
           { _as_can_reexec=; unset _as_can_reexec;}
 if test "x$CONFIG_SHELL" = x; then
-  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+  as_bourne_compatible="if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
@@ -165,12 +146,13 @@
   # is contrary to our usage.  Disable this feature.
   alias -g '\${1+\"\$@\"}'='\"\$@\"'
   setopt NO_GLOB_SUBST
-else
-  case \`(set -o) 2>/dev/null\` in #(
+else case e in #(
+  e) case \`(set -o) 2>/dev/null\` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 "
@@ -185,42 +167,54 @@
 as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
 as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
 as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
-if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+if ( set x; as_fn_ret_success y && test x = \"\$1\" )
+then :
 
-else
-  exitcode=1; echo positional parameters were not saved.
+else case e in #(
+  e) exitcode=1; echo positional parameters were not saved. ;;
+esac
 fi
 test x\$exitcode = x0 || exit 1
+blah=\$(echo \$(echo blah))
+test x\"\$blah\" = xblah || exit 1
 test -x / || exit 1"
   as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
   as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
   eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
-  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
-test \$(( 1 + 1 )) = 2 || exit 1"
-  if (eval "$as_required") 2>/dev/null; then :
+  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1"
+  if (eval "$as_required") 2>/dev/null
+then :
   as_have_required=yes
-else
-  as_have_required=no
+else case e in #(
+  e) as_have_required=no ;;
+esac
 fi
-  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null
+then :
 
-else
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+else case e in #(
+  e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 as_found=false
 for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
   as_found=:
   case $as_dir in #(
 	 /*)
 	   for as_base in sh bash ksh sh5; do
 	     # Try only shells that exist, to save several forks.
-	     as_shell=$as_dir/$as_base
+	     as_shell=$as_dir$as_base
 	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
-		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+		    as_run=a "$as_shell" -c "$as_bourne_compatible""$as_required" 2>/dev/null
+then :
   CONFIG_SHELL=$as_shell as_have_required=yes
-		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+		   if as_run=a "$as_shell" -c "$as_bourne_compatible""$as_suggested" 2>/dev/null
+then :
   break 2
 fi
 fi
@@ -228,14 +222,22 @@
        esac
   as_found=false
 done
-$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
-	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
-  CONFIG_SHELL=$SHELL as_have_required=yes
-fi; }
 IFS=$as_save_IFS
+if $as_found
+then :
 
+else case e in #(
+  e) if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      as_run=a "$SHELL" -c "$as_bourne_compatible""$as_required" 2>/dev/null
+then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi ;;
+esac
+fi
 
-      if test "x$CONFIG_SHELL" != x; then :
+
+      if test "x$CONFIG_SHELL" != x
+then :
   export CONFIG_SHELL
              # We cannot yet assume a decent shell, so we have to provide a
 # neutralization value for shells without unset; and this also
@@ -252,27 +254,29 @@
 esac
 exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
 # Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+# out after a failed 'exec'.
+printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
 exit 255
 fi
 
-    if test x$as_have_required = xno; then :
-  $as_echo "$0: This script requires a shell more modern than all"
-  $as_echo "$0: the shells that I found on your system."
-  if test x${ZSH_VERSION+set} = xset ; then
-    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
-    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+    if test x$as_have_required = xno
+then :
+  printf "%s\n" "$0: This script requires a shell more modern than all"
+  printf "%s\n" "$0: the shells that I found on your system."
+  if test ${ZSH_VERSION+y} ; then
+    printf "%s\n" "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    printf "%s\n" "$0: be upgraded to zsh 4.3.4 or later."
   else
-    $as_echo "$0: Please tell bug-autoconf@gnu.org about your system,
+    printf "%s\n" "$0: Please tell bug-autoconf@gnu.org about your system,
 $0: including any error possibly output before this
 $0: message. Then install a modern shell, or manually run
 $0: the script under such a shell if you do have one."
   fi
   exit 1
+fi ;;
+esac
 fi
 fi
-fi
 SHELL=${CONFIG_SHELL-/bin/sh}
 export SHELL
 # Unset more variables known to interfere with behavior of common tools.
@@ -291,6 +295,7 @@
 }
 as_unset=as_fn_unset
 
+
 # as_fn_set_status STATUS
 # -----------------------
 # Set $? to STATUS, without forking.
@@ -322,7 +327,7 @@
     as_dirs=
     while :; do
       case $as_dir in #(
-      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
       *) as_qdir=$as_dir;;
       esac
       as_dirs="'$as_qdir' $as_dirs"
@@ -331,7 +336,7 @@
 	 X"$as_dir" : 'X\(//\)[^/]' \| \
 	 X"$as_dir" : 'X\(//\)$' \| \
 	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_dir" |
+printf "%s\n" X"$as_dir" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -370,16 +375,18 @@
 # advantage of any shell optimizations that allow amortized linear growth over
 # repeated appends, instead of the typical quadratic growth present in naive
 # implementations.
-if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null
+then :
   eval 'as_fn_append ()
   {
     eval $1+=\$2
   }'
-else
-  as_fn_append ()
+else case e in #(
+  e) as_fn_append ()
   {
     eval $1=\$$1\$2
-  }
+  } ;;
+esac
 fi # as_fn_append
 
 # as_fn_arith ARG...
@@ -387,16 +394,18 @@
 # Perform arithmetic evaluation on the ARGs, and store the result in the
 # global $as_val. Take advantage of shells that can avoid forks. The arguments
 # must be portable across $(()) and expr.
-if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null
+then :
   eval 'as_fn_arith ()
   {
     as_val=$(( $* ))
   }'
-else
-  as_fn_arith ()
+else case e in #(
+  e) as_fn_arith ()
   {
     as_val=`expr "$@" || test $? -eq 1`
-  }
+  } ;;
+esac
 fi # as_fn_arith
 
 
@@ -410,9 +419,9 @@
   as_status=$1; test $as_status -eq 0 && as_status=1
   if test "$4"; then
     as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
   fi
-  $as_echo "$as_me: error: $2" >&2
+  printf "%s\n" "$as_me: error: $2" >&2
   as_fn_exit $as_status
 } # as_fn_error
 
@@ -439,7 +448,7 @@
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
 	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
+printf "%s\n" X/"$0" |
     sed '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
@@ -472,6 +481,8 @@
     /[$]LINENO/=
   ' <$as_myself |
     sed '
+      t clear
+      :clear
       s/[$]LINENO.*/&-/
       t lineno
       b
@@ -483,7 +494,7 @@
       s/-\n.*//
     ' >$as_me.lineno &&
   chmod +x "$as_me.lineno" ||
-    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+    { printf "%s\n" "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
 
   # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
   # already done that, so ensure we don't try to do so again and fall
@@ -497,6 +508,10 @@
   exit
 }
 
+
+# Determine whether it's possible to make 'echo' print without a newline.
+# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
+# for compatibility with existing Makefiles.
 ECHO_C= ECHO_N= ECHO_T=
 case `echo -n x` in #(((((
 -n*)
@@ -510,6 +525,12 @@
   ECHO_N='-n';;
 esac
 
+# For backward compatibility with old third-party macros, we provide
+# the shell variables $as_echo and $as_echo_n.  New code should use
+# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
+as_echo='printf %s\n'
+as_echo_n='printf %s'
+
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
   rm -f conf$$.dir/conf$$.file
@@ -521,9 +542,9 @@
   if ln -s conf$$.file conf$$ 2>/dev/null; then
     as_ln_s='ln -s'
     # ... but there are two gotchas:
-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -pR'.
+    # 1) On MSYS, both 'ln -s file dir' and 'ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; 'ln -s' creates a wrapper executable.
+    # In both cases, we have to default to 'cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
       as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
@@ -548,10 +569,12 @@
 as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_cpp="y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+as_tr_cpp="eval sed '$as_sed_cpp'" # deprecated
 
 # Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_sh="y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
+as_tr_sh="eval sed '$as_sed_sh'" # deprecated
 
 
 test -n "$DJDIR" || exec 7<&0 </dev/null
@@ -584,30 +607,16 @@
 
 # Factoring default headers for most tests.
 ac_includes_default="\
-#include <stdio.h>
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
+#include <stddef.h>
+#ifdef HAVE_STDIO_H
+# include <stdio.h>
 #endif
-#ifdef HAVE_SYS_STAT_H
-# include <sys/stat.h>
-#endif
-#ifdef STDC_HEADERS
+#ifdef HAVE_STDLIB_H
 # include <stdlib.h>
-# include <stddef.h>
-#else
-# ifdef HAVE_STDLIB_H
-#  include <stdlib.h>
-# endif
 #endif
 #ifdef HAVE_STRING_H
-# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
-#  include <memory.h>
-# endif
 # include <string.h>
 #endif
-#ifdef HAVE_STRINGS_H
-# include <strings.h>
-#endif
 #ifdef HAVE_INTTYPES_H
 # include <inttypes.h>
 #endif
@@ -614,10 +623,20 @@
 #ifdef HAVE_STDINT_H
 # include <stdint.h>
 #endif
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
 #ifdef HAVE_UNISTD_H
 # include <unistd.h>
 #endif"
 
+ac_header_c_list=
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
 ac_main_obj
@@ -701,9 +720,6 @@
 ac_linux_poll
 ac_os_objs
 ac_target_arch
-EGREP
-GREP
-CPP
 ac_cross_compile
 ac_shlib_suffix
 ac_build_mak_vars
@@ -850,8 +866,7 @@
 CPPFLAGS
 CXX
 CXXFLAGS
-CCC
-CPP'
+CCC'
 
 
 # Initialize some variables set by options.
@@ -920,8 +935,6 @@
   *)    ac_optarg=yes ;;
   esac
 
-  # Accept the important Cygnus configure options, so we can diagnose typos.
-
   case $ac_dashdash$ac_option in
   --)
     ac_dashdash=yes ;;
@@ -962,9 +975,9 @@
     ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: $ac_useropt"
+      as_fn_error $? "invalid feature name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "enable_$ac_useropt"
@@ -988,9 +1001,9 @@
     ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: $ac_useropt"
+      as_fn_error $? "invalid feature name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "enable_$ac_useropt"
@@ -1201,9 +1214,9 @@
     ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: $ac_useropt"
+      as_fn_error $? "invalid package name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "with_$ac_useropt"
@@ -1217,9 +1230,9 @@
     ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: $ac_useropt"
+      as_fn_error $? "invalid package name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "with_$ac_useropt"
@@ -1247,8 +1260,8 @@
   | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
     x_libraries=$ac_optarg ;;
 
-  -*) as_fn_error $? "unrecognized option: \`$ac_option'
-Try \`$0 --help' for more information"
+  -*) as_fn_error $? "unrecognized option: '$ac_option'
+Try '$0 --help' for more information"
     ;;
 
   *=*)
@@ -1256,7 +1269,7 @@
     # Reject names that are not valid shell variable names.
     case $ac_envvar in #(
       '' | [0-9]* | *[!_$as_cr_alnum]* )
-      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+      as_fn_error $? "invalid variable name: '$ac_envvar'" ;;
     esac
     eval $ac_envvar=\$ac_optarg
     export $ac_envvar ;;
@@ -1263,9 +1276,9 @@
 
   *)
     # FIXME: should be removed in autoconf 3.0.
-    $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+    printf "%s\n" "$as_me: WARNING: you should use --build, --host, --target" >&2
     expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
-      $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+      printf "%s\n" "$as_me: WARNING: invalid host type: $ac_option" >&2
     : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
     ;;
 
@@ -1281,7 +1294,7 @@
   case $enable_option_checking in
     no) ;;
     fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
-    *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+    *)     printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
   esac
 fi
 
@@ -1306,7 +1319,7 @@
   as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
 done
 
-# There might be people who depend on the old broken behavior: `$host'
+# There might be people who depend on the old broken behavior: '$host'
 # used to hold the argument of --host etc.
 # FIXME: To remove some day.
 build=$build_alias
@@ -1345,7 +1358,7 @@
 	 X"$as_myself" : 'X\(//\)[^/]' \| \
 	 X"$as_myself" : 'X\(//\)$' \| \
 	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_myself" |
+printf "%s\n" X"$as_myself" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -1374,7 +1387,7 @@
   test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
   as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
 fi
-ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_msg="sources are in $srcdir, but 'cd $srcdir' does not work"
 ac_abs_confdir=`(
 	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
 	pwd)`
@@ -1402,7 +1415,7 @@
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures pjproject 2.x to adapt to many kinds of systems.
+'configure' configures pjproject 2.x to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1416,11 +1429,11 @@
       --help=short        display options specific to this package
       --help=recursive    display the short help of all the included packages
   -V, --version           display version information and exit
-  -q, --quiet, --silent   do not print \`checking ...' messages
+  -q, --quiet, --silent   do not print 'checking ...' messages
       --cache-file=FILE   cache test results in FILE [disabled]
-  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -C, --config-cache      alias for '--cache-file=config.cache'
   -n, --no-create         do not create output files
-      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+      --srcdir=DIR        find the sources in DIR [configure dir or '..']
 
 Installation directories:
   --prefix=PREFIX         install architecture-independent files in PREFIX
@@ -1428,10 +1441,10 @@
   --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                           [PREFIX]
 
-By default, \`make install' will install all the files in
-\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
-an installation prefix other than \`$ac_default_prefix' using \`--prefix',
-for instance \`--prefix=\$HOME'.
+By default, 'make install' will install all the files in
+'$ac_default_prefix/bin', '$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than '$ac_default_prefix' using '--prefix',
+for instance '--prefix=\$HOME'.
 
 For better control, use the options below.
 
@@ -1587,9 +1600,8 @@
               you have headers in a nonstandard directory <include dir>
   CXX         C++ compiler command
   CXXFLAGS    C++ compiler flags
-  CPP         C preprocessor
 
-Use these variables to override the choices made by `configure' or to help
+Use these variables to override the choices made by 'configure' or to help
 it to find libraries and programs with nonstandard names/locations.
 
 Report bugs to the package provider.
@@ -1608,9 +1620,9 @@
 case "$ac_dir" in
 .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
 *)
-  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
   # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
   case $ac_top_builddir_sub in
   "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
   *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
@@ -1638,7 +1650,8 @@
 ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
 
     cd "$ac_dir" || { ac_status=$?; continue; }
-    # Check for guested configure.
+    # Check for configure.gnu first; this name is used for a wrapper for
+    # Metaconfig's "Configure" on case-insensitive file systems.
     if test -f "$ac_srcdir/configure.gnu"; then
       echo &&
       $SHELL "$ac_srcdir/configure.gnu" --help=recursive
@@ -1646,7 +1659,7 @@
       echo &&
       $SHELL "$ac_srcdir/configure" --help=recursive
     else
-      $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+      printf "%s\n" "$as_me: WARNING: no configuration information is in $ac_dir" >&2
     fi || ac_status=$?
     cd "$ac_pwd" || { ac_status=$?; break; }
   done
@@ -1656,9 +1669,9 @@
 if $ac_init_version; then
   cat <<\_ACEOF
 pjproject configure 2.x
-generated by GNU Autoconf 2.69
+generated by GNU Autoconf 2.72
 
-Copyright (C) 2012 Free Software Foundation, Inc.
+Copyright (C) 2023 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 _ACEOF
@@ -1675,7 +1688,7 @@
 ac_fn_c_try_compile ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext
+  rm -f conftest.$ac_objext conftest.beam
   if { { ac_try="$ac_compile"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
@@ -1682,7 +1695,7 @@
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_compile") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -1690,17 +1703,19 @@
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
 	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then :
+       } && test -s conftest.$ac_objext
+then :
   ac_retval=0
-else
-  $as_echo "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
@@ -1713,7 +1728,7 @@
 ac_fn_cxx_try_compile ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext
+  rm -f conftest.$ac_objext conftest.beam
   if { { ac_try="$ac_compile"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
@@ -1720,7 +1735,7 @@
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_compile") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -1728,17 +1743,19 @@
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
 	 test -z "$ac_cxx_werror_flag" ||
 	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then :
+       } && test -s conftest.$ac_objext
+then :
   ac_retval=0
-else
-  $as_echo "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
@@ -1751,7 +1768,7 @@
 ac_fn_cxx_try_link ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext conftest$ac_exeext
+  rm -f conftest.$ac_objext conftest.beam conftest$ac_exeext
   if { { ac_try="$ac_link"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
@@ -1758,7 +1775,7 @@
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -1766,7 +1783,7 @@
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
 	 test -z "$ac_cxx_werror_flag" ||
 	 test ! -s conftest.err
@@ -1773,13 +1790,15 @@
        } && test -s conftest$ac_exeext && {
 	 test "$cross_compiling" = yes ||
 	 test -x conftest$ac_exeext
-       }; then :
+       }
+then :
   ac_retval=0
-else
-  $as_echo "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
   # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
@@ -1797,7 +1816,7 @@
 ac_fn_c_try_link ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext conftest$ac_exeext
+  rm -f conftest.$ac_objext conftest.beam conftest$ac_exeext
   if { { ac_try="$ac_link"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
@@ -1804,7 +1823,7 @@
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -1812,7 +1831,7 @@
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
 	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
@@ -1819,13 +1838,15 @@
        } && test -s conftest$ac_exeext && {
 	 test "$cross_compiling" = yes ||
 	 test -x conftest$ac_exeext
-       }; then :
+       }
+then :
   ac_retval=0
-else
-  $as_echo "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
   # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
@@ -1839,8 +1860,8 @@
 
 # ac_fn_c_try_run LINENO
 # ----------------------
-# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
-# that executables *can* be run.
+# Try to run conftest.$ac_ext, and return whether this succeeded. Assumes that
+# executables *can* be run.
 ac_fn_c_try_run ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
@@ -1850,10 +1871,10 @@
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
   { { case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
@@ -1860,18 +1881,20 @@
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_try") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then :
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+then :
   ac_retval=0
-else
-  $as_echo "$as_me: program exited with status $ac_status" >&5
-       $as_echo "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: program exited with status $ac_status" >&5
+       printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-       ac_retval=$ac_status
+       ac_retval=$ac_status ;;
+esac
 fi
   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
@@ -1879,43 +1902,6 @@
 
 } # ac_fn_c_try_run
 
-# ac_fn_c_try_cpp LINENO
-# ----------------------
-# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
-ac_fn_c_try_cpp ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  if { { ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
-  ac_status=$?
-  if test -s conftest.err; then
-    grep -v '^ *+' conftest.err >conftest.er1
-    cat conftest.er1 >&5
-    mv -f conftest.er1 conftest.err
-  fi
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } > conftest.i && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       }; then :
-  ac_retval=0
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-    ac_retval=1
-fi
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-  as_fn_set_status $ac_retval
-
-} # ac_fn_c_try_cpp
-
 # ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
 # -------------------------------------------------------
 # Tests whether HEADER exists and can be compiled using the include files in
@@ -1923,117 +1909,34 @@
 ac_fn_c_check_header_compile ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
-$as_echo_n "checking for $2... " >&6; }
-if eval \${$3+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+printf %s "checking for $2... " >&6; }
+if eval test \${$3+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
 #include <$2>
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   eval "$3=yes"
-else
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no" ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$3
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_header_compile
 
-# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
-# -------------------------------------------------------
-# Tests whether HEADER exists, giving a warning if it cannot be compiled using
-# the include files in INCLUDES and setting the cache variable VAR
-# accordingly.
-ac_fn_c_check_header_mongrel ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  if eval \${$3+:} false; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
-$as_echo_n "checking for $2... " >&6; }
-if eval \${$3+:} false; then :
-  $as_echo_n "(cached) " >&6
-fi
-eval ac_res=\$$3
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-else
-  # Is the header compilable?
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
-$as_echo_n "checking $2 usability... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-#include <$2>
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_header_compiler=yes
-else
-  ac_header_compiler=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
-$as_echo "$ac_header_compiler" >&6; }
-
-# Is the header present?
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
-$as_echo_n "checking $2 presence... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <$2>
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
-  ac_header_preproc=yes
-else
-  ac_header_preproc=no
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
-$as_echo "$ac_header_preproc" >&6; }
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
-  yes:no: )
-    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
-$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
-    ;;
-  no:yes:* )
-    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
-$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
-    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
-$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
-    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
-$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
-    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
-$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
-    ;;
-esac
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
-$as_echo_n "checking for $2... " >&6; }
-if eval \${$3+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  eval "$3=\$ac_header_compiler"
-fi
-eval ac_res=\$$3
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-fi
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-
-} # ac_fn_c_check_header_mongrel
-
 # ac_fn_c_check_func LINENO FUNC VAR
 # ----------------------------------
 # Tests whether FUNC exists, setting the cache variable VAR accordingly
@@ -2040,12 +1943,13 @@
 ac_fn_c_check_func ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
-$as_echo_n "checking for $2... " >&6; }
-if eval \${$3+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+printf %s "checking for $2... " >&6; }
+if eval test \${$3+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 /* Define $2 to an innocuous variant, in case <limits.h> declares $2.
    For example, HP-UX 11i <limits.h> declares gettimeofday.  */
@@ -2052,16 +1956,9 @@
 #define $2 innocuous_$2
 
 /* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $2 (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
+   which can conflict with char $2 (void); below.  */
 
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
+#include <limits.h>
 #undef $2
 
 /* Override any GCC internal prototype to avoid an error.
@@ -2070,7 +1967,7 @@
 #ifdef __cplusplus
 extern "C"
 #endif
-char $2 ();
+char $2 (void);
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
     something starting with __ and the normal name is an alias.  */
@@ -2079,7 +1976,7 @@
 #endif
 
 int
-main ()
+main (void)
 {
 return $2 ();
   ;
@@ -2086,17 +1983,20 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   eval "$3=yes"
-else
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no" ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$3
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_func
@@ -2108,17 +2008,18 @@
 ac_fn_c_check_type ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
-$as_echo_n "checking for $2... " >&6; }
-if eval \${$3+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  eval "$3=no"
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+printf %s "checking for $2... " >&6; }
+if eval test \${$3+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) eval "$3=no"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
 int
-main ()
+main (void)
 {
 if (sizeof ($2))
 	 return 0;
@@ -2126,12 +2027,13 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
 int
-main ()
+main (void)
 {
 if (sizeof (($2)))
 	    return 0;
@@ -2139,29 +2041,52 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-else
-  eval "$3=yes"
+else case e in #(
+  e) eval "$3=yes" ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$3
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_type
+ac_configure_args_raw=
+for ac_arg
+do
+  case $ac_arg in
+  *\'*)
+    ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+  esac
+  as_fn_append ac_configure_args_raw " '$ac_arg'"
+done
+
+case $ac_configure_args_raw in
+  *$as_nl*)
+    ac_safe_unquote= ;;
+  *)
+    ac_unsafe_z='|&;<>()$`\\"*?[ ''	' # This string ends in space, tab.
+    ac_unsafe_a="$ac_unsafe_z#~"
+    ac_safe_unquote="s/ '\\([^$ac_unsafe_a][^$ac_unsafe_z]*\\)'/ \\1/g"
+    ac_configure_args_raw=`      printf "%s\n" "$ac_configure_args_raw" | sed "$ac_safe_unquote"`;;
+esac
+
 cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by pjproject $as_me 2.x, which was
-generated by GNU Autoconf 2.69.  Invocation command line was
+generated by GNU Autoconf 2.72.  Invocation command line was
 
-  $ $0 $@
+  $ $0$ac_configure_args_raw
 
 _ACEOF
 exec 5>>config.log
@@ -2194,8 +2119,12 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    $as_echo "PATH: $as_dir"
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    printf "%s\n" "PATH: $as_dir"
   done
 IFS=$as_save_IFS
 
@@ -2230,7 +2159,7 @@
     | -silent | --silent | --silen | --sile | --sil)
       continue ;;
     *\'*)
-      ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+      ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
     esac
     case $ac_pass in
     1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
@@ -2265,11 +2194,13 @@
 # WARNING: Use '\'' to represent an apostrophe within the trap.
 # WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
 trap 'exit_status=$?
+  # Sanitize IFS.
+  IFS=" ""	$as_nl"
   # Save into config.log some information that might help in debugging.
   {
     echo
 
-    $as_echo "## ---------------- ##
+    printf "%s\n" "## ---------------- ##
 ## Cache variables. ##
 ## ---------------- ##"
     echo
@@ -2280,8 +2211,8 @@
     case $ac_val in #(
     *${as_nl}*)
       case $ac_var in #(
-      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
-$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       esac
       case $ac_var in #(
       _ | IFS | as_nl) ;; #(
@@ -2305,7 +2236,7 @@
 )
     echo
 
-    $as_echo "## ----------------- ##
+    printf "%s\n" "## ----------------- ##
 ## Output variables. ##
 ## ----------------- ##"
     echo
@@ -2313,14 +2244,14 @@
     do
       eval ac_val=\$$ac_var
       case $ac_val in
-      *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      *\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
       esac
-      $as_echo "$ac_var='\''$ac_val'\''"
+      printf "%s\n" "$ac_var='\''$ac_val'\''"
     done | sort
     echo
 
     if test -n "$ac_subst_files"; then
-      $as_echo "## ------------------- ##
+      printf "%s\n" "## ------------------- ##
 ## File substitutions. ##
 ## ------------------- ##"
       echo
@@ -2328,15 +2259,15 @@
       do
 	eval ac_val=\$$ac_var
 	case $ac_val in
-	*\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+	*\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
 	esac
-	$as_echo "$ac_var='\''$ac_val'\''"
+	printf "%s\n" "$ac_var='\''$ac_val'\''"
       done | sort
       echo
     fi
 
     if test -s confdefs.h; then
-      $as_echo "## ----------- ##
+      printf "%s\n" "## ----------- ##
 ## confdefs.h. ##
 ## ----------- ##"
       echo
@@ -2344,8 +2275,8 @@
       echo
     fi
     test "$ac_signal" != 0 &&
-      $as_echo "$as_me: caught signal $ac_signal"
-    $as_echo "$as_me: exit $exit_status"
+      printf "%s\n" "$as_me: caught signal $ac_signal"
+    printf "%s\n" "$as_me: exit $exit_status"
   } >&5
   rm -f core *.core core.conftest.* &&
     rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
@@ -2359,65 +2290,50 @@
 # confdefs.h avoids OS command line length limits that DEFS can exceed.
 rm -f -r conftest* confdefs.h
 
-$as_echo "/* confdefs.h */" > confdefs.h
+printf "%s\n" "/* confdefs.h */" > confdefs.h
 
 # Predefined preprocessor variables.
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_NAME "$PACKAGE_NAME"
-_ACEOF
+printf "%s\n" "#define PACKAGE_NAME \"$PACKAGE_NAME\"" >>confdefs.h
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
-_ACEOF
+printf "%s\n" "#define PACKAGE_TARNAME \"$PACKAGE_TARNAME\"" >>confdefs.h
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_VERSION "$PACKAGE_VERSION"
-_ACEOF
+printf "%s\n" "#define PACKAGE_VERSION \"$PACKAGE_VERSION\"" >>confdefs.h
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_STRING "$PACKAGE_STRING"
-_ACEOF
+printf "%s\n" "#define PACKAGE_STRING \"$PACKAGE_STRING\"" >>confdefs.h
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
-_ACEOF
+printf "%s\n" "#define PACKAGE_BUGREPORT \"$PACKAGE_BUGREPORT\"" >>confdefs.h
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_URL "$PACKAGE_URL"
-_ACEOF
+printf "%s\n" "#define PACKAGE_URL \"$PACKAGE_URL\"" >>confdefs.h
 
 
 # Let the site file select an alternate cache file if it wants to.
 # Prefer an explicitly selected file to automatically selected ones.
-ac_site_file1=NONE
-ac_site_file2=NONE
 if test -n "$CONFIG_SITE"; then
-  # We do not want a PATH search for config.site.
-  case $CONFIG_SITE in #((
-    -*)  ac_site_file1=./$CONFIG_SITE;;
-    */*) ac_site_file1=$CONFIG_SITE;;
-    *)   ac_site_file1=./$CONFIG_SITE;;
-  esac
+  ac_site_files="$CONFIG_SITE"
 elif test "x$prefix" != xNONE; then
-  ac_site_file1=$prefix/share/config.site
-  ac_site_file2=$prefix/etc/config.site
+  ac_site_files="$prefix/share/config.site $prefix/etc/config.site"
 else
-  ac_site_file1=$ac_default_prefix/share/config.site
-  ac_site_file2=$ac_default_prefix/etc/config.site
+  ac_site_files="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
 fi
-for ac_site_file in "$ac_site_file1" "$ac_site_file2"
+
+for ac_site_file in $ac_site_files
 do
-  test "x$ac_site_file" = xNONE && continue
-  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
-$as_echo "$as_me: loading site script $ac_site_file" >&6;}
+  case $ac_site_file in #(
+  */*) :
+     ;; #(
+  *) :
+    ac_site_file=./$ac_site_file ;;
+esac
+  if test -f "$ac_site_file" && test -r "$ac_site_file"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+printf "%s\n" "$as_me: loading site script $ac_site_file" >&6;}
     sed 's/^/| /' "$ac_site_file" >&5
     . "$ac_site_file" \
-      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+      || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to load site script $ac_site_file
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
   fi
 done
 
@@ -2425,8 +2341,8 @@
   # Some versions of bash will fail to source /dev/null (special files
   # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
   if test /dev/null != "$cache_file" && test -f "$cache_file"; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
-$as_echo "$as_me: loading cache $cache_file" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+printf "%s\n" "$as_me: loading cache $cache_file" >&6;}
     case $cache_file in
       [\\/]* | ?:[\\/]* ) . "$cache_file";;
       *)                      . "./$cache_file";;
@@ -2433,11 +2349,660 @@
     esac
   fi
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
-$as_echo "$as_me: creating cache $cache_file" >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+printf "%s\n" "$as_me: creating cache $cache_file" >&6;}
   >$cache_file
 fi
 
+# Test code for whether the C compiler supports C89 (global declarations)
+ac_c_conftest_c89_globals='
+/* Does the compiler advertise C89 conformance?
+   Do not test the value of __STDC__, because some compilers set it to 0
+   while being otherwise adequately conformant. */
+#if !defined __STDC__
+# error "Compiler does not advertise C89 conformance"
+#endif
+
+#include <stddef.h>
+#include <stdarg.h>
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7 src/conf.sh.  */
+struct buf { int x; };
+struct buf * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (char **p, int i)
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* C89 style stringification. */
+#define noexpand_stringify(a) #a
+const char *stringified = noexpand_stringify(arbitrary+token=sequence);
+
+/* C89 style token pasting.  Exercises some of the corner cases that
+   e.g. old MSVC gets wrong, but not very hard. */
+#define noexpand_concat(a,b) a##b
+#define expand_concat(a,b) noexpand_concat(a,b)
+extern int vA;
+extern int vbee;
+#define aye A
+#define bee B
+int *pvA = &expand_concat(v,aye);
+int *pvbee = &noexpand_concat(v,bee);
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not \xHH hex character constants.
+   These do not provoke an error unfortunately, instead are silently treated
+   as an "x".  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously \x00 != x always comes out true, for an
+   array size at least.  It is necessary to write \x00 == 0 to get something
+   that is true only with -std.  */
+int osf4_cc_array ['\''\x00'\'' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) '\''x'\''
+int xlc6_cc_array[FOO(a) == '\''x'\'' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, int *(*)(struct buf *, struct stat *, int),
+               int, int);'
+
+# Test code for whether the C compiler supports C89 (body of main).
+ac_c_conftest_c89_main='
+ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]);
+'
+
+# Test code for whether the C compiler supports C99 (global declarations)
+ac_c_conftest_c99_globals='
+/* Does the compiler advertise C99 conformance? */
+#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
+# error "Compiler does not advertise C99 conformance"
+#endif
+
+// See if C++-style comments work.
+
+#include <stdbool.h>
+extern int puts (const char *);
+extern int printf (const char *, ...);
+extern int dprintf (int, const char *, ...);
+extern void *malloc (size_t);
+extern void free (void *);
+
+// Check varargs macros.  These examples are taken from C99 6.10.3.5.
+// dprintf is used instead of fprintf to avoid needing to declare
+// FILE and stderr.
+#define debug(...) dprintf (2, __VA_ARGS__)
+#define showlist(...) puts (#__VA_ARGS__)
+#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
+static void
+test_varargs_macros (void)
+{
+  int x = 1234;
+  int y = 5678;
+  debug ("Flag");
+  debug ("X = %d\n", x);
+  showlist (The first, second, and third items.);
+  report (x>y, "x is %d but y is %d", x, y);
+}
+
+// Check long long types.
+#define BIG64 18446744073709551615ull
+#define BIG32 4294967295ul
+#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
+#if !BIG_OK
+  #error "your preprocessor is broken"
+#endif
+#if BIG_OK
+#else
+  #error "your preprocessor is broken"
+#endif
+static long long int bignum = -9223372036854775807LL;
+static unsigned long long int ubignum = BIG64;
+
+struct incomplete_array
+{
+  int datasize;
+  double data[];
+};
+
+struct named_init {
+  int number;
+  const wchar_t *name;
+  double average;
+};
+
+typedef const char *ccp;
+
+static inline int
+test_restrict (ccp restrict text)
+{
+  // Iterate through items via the restricted pointer.
+  // Also check for declarations in for loops.
+  for (unsigned int i = 0; *(text+i) != '\''\0'\''; ++i)
+    continue;
+  return 0;
+}
+
+// Check varargs and va_copy.
+static bool
+test_varargs (const char *format, ...)
+{
+  va_list args;
+  va_start (args, format);
+  va_list args_copy;
+  va_copy (args_copy, args);
+
+  const char *str = "";
+  int number = 0;
+  float fnumber = 0;
+
+  while (*format)
+    {
+      switch (*format++)
+	{
+	case '\''s'\'': // string
+	  str = va_arg (args_copy, const char *);
+	  break;
+	case '\''d'\'': // int
+	  number = va_arg (args_copy, int);
+	  break;
+	case '\''f'\'': // float
+	  fnumber = va_arg (args_copy, double);
+	  break;
+	default:
+	  break;
+	}
+    }
+  va_end (args_copy);
+  va_end (args);
+
+  return *str && number && fnumber;
+}
+'
+
+# Test code for whether the C compiler supports C99 (body of main).
+ac_c_conftest_c99_main='
+  // Check bool.
+  _Bool success = false;
+  success |= (argc != 0);
+
+  // Check restrict.
+  if (test_restrict ("String literal") == 0)
+    success = true;
+  char *restrict newvar = "Another string";
+
+  // Check varargs.
+  success &= test_varargs ("s, d'\'' f .", "string", 65, 34.234);
+  test_varargs_macros ();
+
+  // Check flexible array members.
+  struct incomplete_array *ia =
+    malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
+  ia->datasize = 10;
+  for (int i = 0; i < ia->datasize; ++i)
+    ia->data[i] = i * 1.234;
+  // Work around memory leak warnings.
+  free (ia);
+
+  // Check named initializers.
+  struct named_init ni = {
+    .number = 34,
+    .name = L"Test wide string",
+    .average = 543.34343,
+  };
+
+  ni.number = 58;
+
+  int dynamic_array[ni.number];
+  dynamic_array[0] = argv[0][0];
+  dynamic_array[ni.number - 1] = 543;
+
+  // work around unused variable warnings
+  ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == '\''x'\''
+	 || dynamic_array[ni.number - 1] != 543);
+'
+
+# Test code for whether the C compiler supports C11 (global declarations)
+ac_c_conftest_c11_globals='
+/* Does the compiler advertise C11 conformance? */
+#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
+# error "Compiler does not advertise C11 conformance"
+#endif
+
+// Check _Alignas.
+char _Alignas (double) aligned_as_double;
+char _Alignas (0) no_special_alignment;
+extern char aligned_as_int;
+char _Alignas (0) _Alignas (int) aligned_as_int;
+
+// Check _Alignof.
+enum
+{
+  int_alignment = _Alignof (int),
+  int_array_alignment = _Alignof (int[100]),
+  char_alignment = _Alignof (char)
+};
+_Static_assert (0 < -_Alignof (int), "_Alignof is signed");
+
+// Check _Noreturn.
+int _Noreturn does_not_return (void) { for (;;) continue; }
+
+// Check _Static_assert.
+struct test_static_assert
+{
+  int x;
+  _Static_assert (sizeof (int) <= sizeof (long int),
+                  "_Static_assert does not work in struct");
+  long int y;
+};
+
+// Check UTF-8 literals.
+#define u8 syntax error!
+char const utf8_literal[] = u8"happens to be ASCII" "another string";
+
+// Check duplicate typedefs.
+typedef long *long_ptr;
+typedef long int *long_ptr;
+typedef long_ptr long_ptr;
+
+// Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1.
+struct anonymous
+{
+  union {
+    struct { int i; int j; };
+    struct { int k; long int l; } w;
+  };
+  int m;
+} v1;
+'
+
+# Test code for whether the C compiler supports C11 (body of main).
+ac_c_conftest_c11_main='
+  _Static_assert ((offsetof (struct anonymous, i)
+		   == offsetof (struct anonymous, w.k)),
+		  "Anonymous union alignment botch");
+  v1.i = 2;
+  v1.w.k = 5;
+  ok |= v1.i != 5;
+'
+
+# Test code for whether the C compiler supports C11 (complete).
+ac_c_conftest_c11_program="${ac_c_conftest_c89_globals}
+${ac_c_conftest_c99_globals}
+${ac_c_conftest_c11_globals}
+
+int
+main (int argc, char **argv)
+{
+  int ok = 0;
+  ${ac_c_conftest_c89_main}
+  ${ac_c_conftest_c99_main}
+  ${ac_c_conftest_c11_main}
+  return ok;
+}
+"
+
+# Test code for whether the C compiler supports C99 (complete).
+ac_c_conftest_c99_program="${ac_c_conftest_c89_globals}
+${ac_c_conftest_c99_globals}
+
+int
+main (int argc, char **argv)
+{
+  int ok = 0;
+  ${ac_c_conftest_c89_main}
+  ${ac_c_conftest_c99_main}
+  return ok;
+}
+"
+
+# Test code for whether the C compiler supports C89 (complete).
+ac_c_conftest_c89_program="${ac_c_conftest_c89_globals}
+
+int
+main (int argc, char **argv)
+{
+  int ok = 0;
+  ${ac_c_conftest_c89_main}
+  return ok;
+}
+"
+
+# Test code for whether the C++ compiler supports C++98 (global declarations)
+ac_cxx_conftest_cxx98_globals='
+// Does the compiler advertise C++98 conformance?
+#if !defined __cplusplus || __cplusplus < 199711L
+# error "Compiler does not advertise C++98 conformance"
+#endif
+
+// These inclusions are to reject old compilers that
+// lack the unsuffixed header files.
+#include <cstdlib>
+#include <exception>
+
+// <cassert> and <cstring> are *not* freestanding headers in C++98.
+extern void assert (int);
+namespace std {
+  extern int strcmp (const char *, const char *);
+}
+
+// Namespaces, exceptions, and templates were all added after "C++ 2.0".
+using std::exception;
+using std::strcmp;
+
+namespace {
+
+void test_exception_syntax()
+{
+  try {
+    throw "test";
+  } catch (const char *s) {
+    // Extra parentheses suppress a warning when building autoconf itself,
+    // due to lint rules shared with more typical C programs.
+    assert (!(strcmp) (s, "test"));
+  }
+}
+
+template <typename T> struct test_template
+{
+  T const val;
+  explicit test_template(T t) : val(t) {}
+  template <typename U> T add(U u) { return static_cast<T>(u) + val; }
+};
+
+} // anonymous namespace
+'
+
+# Test code for whether the C++ compiler supports C++98 (body of main)
+ac_cxx_conftest_cxx98_main='
+  assert (argc);
+  assert (! argv[0]);
+{
+  test_exception_syntax ();
+  test_template<double> tt (2.0);
+  assert (tt.add (4) == 6.0);
+  assert (true && !false);
+}
+'
+
+# Test code for whether the C++ compiler supports C++11 (global declarations)
+ac_cxx_conftest_cxx11_globals='
+// Does the compiler advertise C++ 2011 conformance?
+#if !defined __cplusplus || __cplusplus < 201103L
+# error "Compiler does not advertise C++11 conformance"
+#endif
+
+namespace cxx11test
+{
+  constexpr int get_val() { return 20; }
+
+  struct testinit
+  {
+    int i;
+    double d;
+  };
+
+  class delegate
+  {
+  public:
+    delegate(int n) : n(n) {}
+    delegate(): delegate(2354) {}
+
+    virtual int getval() { return this->n; };
+  protected:
+    int n;
+  };
+
+  class overridden : public delegate
+  {
+  public:
+    overridden(int n): delegate(n) {}
+    virtual int getval() override final { return this->n * 2; }
+  };
+
+  class nocopy
+  {
+  public:
+    nocopy(int i): i(i) {}
+    nocopy() = default;
+    nocopy(const nocopy&) = delete;
+    nocopy & operator=(const nocopy&) = delete;
+  private:
+    int i;
+  };
+
+  // for testing lambda expressions
+  template <typename Ret, typename Fn> Ret eval(Fn f, Ret v)
+  {
+    return f(v);
+  }
+
+  // for testing variadic templates and trailing return types
+  template <typename V> auto sum(V first) -> V
+  {
+    return first;
+  }
+  template <typename V, typename... Args> auto sum(V first, Args... rest) -> V
+  {
+    return first + sum(rest...);
+  }
+}
+'
+
+# Test code for whether the C++ compiler supports C++11 (body of main)
+ac_cxx_conftest_cxx11_main='
+{
+  // Test auto and decltype
+  auto a1 = 6538;
+  auto a2 = 48573953.4;
+  auto a3 = "String literal";
+
+  int total = 0;
+  for (auto i = a3; *i; ++i) { total += *i; }
+
+  decltype(a2) a4 = 34895.034;
+}
+{
+  // Test constexpr
+  short sa[cxx11test::get_val()] = { 0 };
+}
+{
+  // Test initializer lists
+  cxx11test::testinit il = { 4323, 435234.23544 };
+}
+{
+  // Test range-based for
+  int array[] = {9, 7, 13, 15, 4, 18, 12, 10, 5, 3,
+                 14, 19, 17, 8, 6, 20, 16, 2, 11, 1};
+  for (auto &x : array) { x += 23; }
+}
+{
+  // Test lambda expressions
+  using cxx11test::eval;
+  assert (eval ([](int x) { return x*2; }, 21) == 42);
+  double d = 2.0;
+  assert (eval ([&](double x) { return d += x; }, 3.0) == 5.0);
+  assert (d == 5.0);
+  assert (eval ([=](double x) mutable { return d += x; }, 4.0) == 9.0);
+  assert (d == 5.0);
+}
+{
+  // Test use of variadic templates
+  using cxx11test::sum;
+  auto a = sum(1);
+  auto b = sum(1, 2);
+  auto c = sum(1.0, 2.0, 3.0);
+}
+{
+  // Test constructor delegation
+  cxx11test::delegate d1;
+  cxx11test::delegate d2();
+  cxx11test::delegate d3(45);
+}
+{
+  // Test override and final
+  cxx11test::overridden o1(55464);
+}
+{
+  // Test nullptr
+  char *c = nullptr;
+}
+{
+  // Test template brackets
+  test_template<::test_template<int>> v(test_template<int>(12));
+}
+{
+  // Unicode literals
+  char const *utf8 = u8"UTF-8 string \u2500";
+  char16_t const *utf16 = u"UTF-8 string \u2500";
+  char32_t const *utf32 = U"UTF-32 string \u2500";
+}
+'
+
+# Test code for whether the C compiler supports C++11 (complete).
+ac_cxx_conftest_cxx11_program="${ac_cxx_conftest_cxx98_globals}
+${ac_cxx_conftest_cxx11_globals}
+
+int
+main (int argc, char **argv)
+{
+  int ok = 0;
+  ${ac_cxx_conftest_cxx98_main}
+  ${ac_cxx_conftest_cxx11_main}
+  return ok;
+}
+"
+
+# Test code for whether the C compiler supports C++98 (complete).
+ac_cxx_conftest_cxx98_program="${ac_cxx_conftest_cxx98_globals}
+int
+main (int argc, char **argv)
+{
+  int ok = 0;
+  ${ac_cxx_conftest_cxx98_main}
+  return ok;
+}
+"
+
+as_fn_append ac_header_c_list " stdio.h stdio_h HAVE_STDIO_H"
+as_fn_append ac_header_c_list " stdlib.h stdlib_h HAVE_STDLIB_H"
+as_fn_append ac_header_c_list " string.h string_h HAVE_STRING_H"
+as_fn_append ac_header_c_list " inttypes.h inttypes_h HAVE_INTTYPES_H"
+as_fn_append ac_header_c_list " stdint.h stdint_h HAVE_STDINT_H"
+as_fn_append ac_header_c_list " strings.h strings_h HAVE_STRINGS_H"
+as_fn_append ac_header_c_list " sys/stat.h sys_stat_h HAVE_SYS_STAT_H"
+as_fn_append ac_header_c_list " sys/types.h sys_types_h HAVE_SYS_TYPES_H"
+as_fn_append ac_header_c_list " unistd.h unistd_h HAVE_UNISTD_H"
+
+# Auxiliary files required by this configure script.
+ac_aux_files="config.guess config.sub"
+
+# Locations in which to look for auxiliary files.
+ac_aux_dir_candidates="${srcdir}${PATH_SEPARATOR}${srcdir}/..${PATH_SEPARATOR}${srcdir}/../.."
+
+# Search for a directory containing all of the required auxiliary files,
+# $ac_aux_files, from the $PATH-style list $ac_aux_dir_candidates.
+# If we don't find one directory that contains all the files we need,
+# we report the set of missing files from the *first* directory in
+# $ac_aux_dir_candidates and give up.
+ac_missing_aux_files=""
+ac_first_candidate=:
+printf "%s\n" "$as_me:${as_lineno-$LINENO}: looking for aux files: $ac_aux_files" >&5
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
+for as_dir in $ac_aux_dir_candidates
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+  as_found=:
+
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}:  trying $as_dir" >&5
+  ac_aux_dir_found=yes
+  ac_install_sh=
+  for ac_aux in $ac_aux_files
+  do
+    # As a special case, if "install-sh" is required, that requirement
+    # can be satisfied by any of "install-sh", "install.sh", or "shtool",
+    # and $ac_install_sh is set appropriately for whichever one is found.
+    if test x"$ac_aux" = x"install-sh"
+    then
+      if test -f "${as_dir}install-sh"; then
+        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}install-sh found" >&5
+        ac_install_sh="${as_dir}install-sh -c"
+      elif test -f "${as_dir}install.sh"; then
+        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}install.sh found" >&5
+        ac_install_sh="${as_dir}install.sh -c"
+      elif test -f "${as_dir}shtool"; then
+        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}shtool found" >&5
+        ac_install_sh="${as_dir}shtool install -c"
+      else
+        ac_aux_dir_found=no
+        if $ac_first_candidate; then
+          ac_missing_aux_files="${ac_missing_aux_files} install-sh"
+        else
+          break
+        fi
+      fi
+    else
+      if test -f "${as_dir}${ac_aux}"; then
+        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}${ac_aux} found" >&5
+      else
+        ac_aux_dir_found=no
+        if $ac_first_candidate; then
+          ac_missing_aux_files="${ac_missing_aux_files} ${ac_aux}"
+        else
+          break
+        fi
+      fi
+    fi
+  done
+  if test "$ac_aux_dir_found" = yes; then
+    ac_aux_dir="$as_dir"
+    break
+  fi
+  ac_first_candidate=false
+
+  as_found=false
+done
+IFS=$as_save_IFS
+if $as_found
+then :
+
+else case e in #(
+  e) as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" "$LINENO" 5 ;;
+esac
+fi
+
+
+# These three variables are undocumented and unsupported,
+# and are intended to be withdrawn in a future Autoconf release.
+# They can cause serious problems if a builder's source tree is in a directory
+# whose full name contains unusual characters.
+if test -f "${ac_aux_dir}config.guess"; then
+  ac_config_guess="$SHELL ${ac_aux_dir}config.guess"
+fi
+if test -f "${ac_aux_dir}config.sub"; then
+  ac_config_sub="$SHELL ${ac_aux_dir}config.sub"
+fi
+if test -f "$ac_aux_dir/configure"; then
+  ac_configure="$SHELL ${ac_aux_dir}configure"
+fi
+
 # Check that the precious variables saved in the cache have kept the same
 # value.
 ac_cache_corrupted=false
@@ -2448,12 +3013,12 @@
   eval ac_new_val=\$ac_env_${ac_var}_value
   case $ac_old_set,$ac_new_set in
     set,)
-      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
-$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&5
+printf "%s\n" "$as_me: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,set)
-      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
-$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was not set in the previous run" >&5
+printf "%s\n" "$as_me: error: '$ac_var' was not set in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,);;
     *)
@@ -2462,24 +3027,24 @@
 	ac_old_val_w=`echo x $ac_old_val`
 	ac_new_val_w=`echo x $ac_new_val`
 	if test "$ac_old_val_w" != "$ac_new_val_w"; then
-	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
-$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' has changed since the previous run:" >&5
+printf "%s\n" "$as_me: error: '$ac_var' has changed since the previous run:" >&2;}
 	  ac_cache_corrupted=:
 	else
-	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
-$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in '$ac_var' since the previous run:" >&5
+printf "%s\n" "$as_me: warning: ignoring whitespace changes in '$ac_var' since the previous run:" >&2;}
 	  eval $ac_var=\$ac_old_val
 	fi
-	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
-$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
-	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
-$as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   former value:  '$ac_old_val'" >&5
+printf "%s\n" "$as_me:   former value:  '$ac_old_val'" >&2;}
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   current value: '$ac_new_val'" >&5
+printf "%s\n" "$as_me:   current value: '$ac_new_val'" >&2;}
       fi;;
   esac
   # Pass precious variables to config.status.
   if test "$ac_new_set" = set; then
     case $ac_new_val in
-    *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *\'*) ac_arg=$ac_var=`printf "%s\n" "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
     *) ac_arg=$ac_var=$ac_new_val ;;
     esac
     case " $ac_configure_args " in
@@ -2489,11 +3054,12 @@
   fi
 done
 if $ac_cache_corrupted; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
-$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
-  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+printf "%s\n" "$as_me: error: changes in the environment can compromise the build" >&2;}
+  as_fn_error $? "run '${MAKE-make} distclean' and/or 'rm $cache_file'
+	    and start over" "$LINENO" 5
 fi
 ## -------------------- ##
 ## Main body of script. ##
@@ -2509,55 +3075,31 @@
 
 host_orig="$host"
 
-ac_aux_dir=
-for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
-  if test -f "$ac_dir/install-sh"; then
-    ac_aux_dir=$ac_dir
-    ac_install_sh="$ac_aux_dir/install-sh -c"
-    break
-  elif test -f "$ac_dir/install.sh"; then
-    ac_aux_dir=$ac_dir
-    ac_install_sh="$ac_aux_dir/install.sh -c"
-    break
-  elif test -f "$ac_dir/shtool"; then
-    ac_aux_dir=$ac_dir
-    ac_install_sh="$ac_aux_dir/shtool install -c"
-    break
-  fi
-done
-if test -z "$ac_aux_dir"; then
-  as_fn_error $? "cannot find install-sh, install.sh, or shtool in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" "$LINENO" 5
-fi
 
-# These three variables are undocumented and unsupported,
-# and are intended to be withdrawn in a future Autoconf release.
-# They can cause serious problems if a builder's source tree is in a directory
-# whose full name contains unusual characters.
-ac_config_guess="$SHELL $ac_aux_dir/config.guess"  # Please don't use this var.
-ac_config_sub="$SHELL $ac_aux_dir/config.sub"  # Please don't use this var.
-ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
 
 
-# Make sure we can run config.sub.
-$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
-  as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
+  # Make sure we can run config.sub.
+$SHELL "${ac_aux_dir}config.sub" sun4 >/dev/null 2>&1 ||
+  as_fn_error $? "cannot run $SHELL ${ac_aux_dir}config.sub" "$LINENO" 5
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
-$as_echo_n "checking build system type... " >&6; }
-if ${ac_cv_build+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_build_alias=$build_alias
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
+printf %s "checking build system type... " >&6; }
+if test ${ac_cv_build+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_build_alias=$build_alias
 test "x$ac_build_alias" = x &&
-  ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
+  ac_build_alias=`$SHELL "${ac_aux_dir}config.guess"`
 test "x$ac_build_alias" = x &&
   as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
-ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
-  as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
-
+ac_cv_build=`$SHELL "${ac_aux_dir}config.sub" $ac_build_alias` ||
+  as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $ac_build_alias failed" "$LINENO" 5
+ ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
-$as_echo "$ac_cv_build" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
+printf "%s\n" "$ac_cv_build" >&6; }
 case $ac_cv_build in
 *-*-*) ;;
 *) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
@@ -2576,21 +3118,23 @@
 case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
-$as_echo_n "checking host system type... " >&6; }
-if ${ac_cv_host+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test "x$host_alias" = x; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
+printf %s "checking host system type... " >&6; }
+if test ${ac_cv_host+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test "x$host_alias" = x; then
   ac_cv_host=$ac_cv_build
 else
-  ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
-    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
+  ac_cv_host=`$SHELL "${ac_aux_dir}config.sub" $host_alias` ||
+    as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $host_alias failed" "$LINENO" 5
 fi
-
+ ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
-$as_echo "$ac_cv_host" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
+printf "%s\n" "$ac_cv_host" >&6; }
 case $ac_cv_host in
 *-*-*) ;;
 *) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
@@ -2609,21 +3153,23 @@
 case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking target system type" >&5
-$as_echo_n "checking target system type... " >&6; }
-if ${ac_cv_target+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test "x$target_alias" = x; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking target system type" >&5
+printf %s "checking target system type... " >&6; }
+if test ${ac_cv_target+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test "x$target_alias" = x; then
   ac_cv_target=$ac_cv_host
 else
-  ac_cv_target=`$SHELL "$ac_aux_dir/config.sub" $target_alias` ||
-    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $target_alias failed" "$LINENO" 5
+  ac_cv_target=`$SHELL "${ac_aux_dir}config.sub" $target_alias` ||
+    as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $target_alias failed" "$LINENO" 5
 fi
-
+ ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_target" >&5
-$as_echo "$ac_cv_target" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_target" >&5
+printf "%s\n" "$ac_cv_target" >&6; }
 case $ac_cv_target in
 *-*-*) ;;
 *) as_fn_error $? "invalid value of canonical target" "$LINENO" 5;;
@@ -2658,6 +3204,15 @@
   CFLAGS="-O2"
 fi
 
+
+
+
+
+
+
+
+
+
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -2666,12 +3221,13 @@
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}gcc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$CC"; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -2678,11 +3234,15 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}gcc"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2689,15 +3249,16 @@
   done
 IFS=$as_save_IFS
 
+fi ;;
+esac
 fi
-fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-$as_echo "$CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -2706,12 +3267,13 @@
   ac_ct_CC=$CC
   # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_CC"; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_CC+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -2718,11 +3280,15 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="gcc"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2729,15 +3295,16 @@
   done
 IFS=$as_save_IFS
 
+fi ;;
+esac
 fi
-fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-$as_echo "$ac_ct_CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf "%s\n" "$ac_ct_CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
   if test "x$ac_ct_CC" = x; then
@@ -2745,8 +3312,8 @@
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
@@ -2759,12 +3326,13 @@
           if test -n "$ac_tool_prefix"; then
     # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}cc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$CC"; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -2771,11 +3339,15 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}cc"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2782,15 +3354,16 @@
   done
 IFS=$as_save_IFS
 
+fi ;;
+esac
 fi
-fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-$as_echo "$CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -2799,12 +3372,13 @@
 if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$CC"; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
   ac_prog_rejected=no
@@ -2812,15 +3386,19 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    if test "$as_dir$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
        ac_prog_rejected=yes
        continue
      fi
     ac_cv_prog_CC="cc"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2836,18 +3414,19 @@
     # However, it has the same basename, so the bogon will be chosen
     # first if we set CC to just the basename; use the full file name.
     shift
-    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+    ac_cv_prog_CC="$as_dir$ac_word${1+' '}$@"
   fi
 fi
+fi ;;
+esac
 fi
-fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-$as_echo "$CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -2858,12 +3437,13 @@
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$CC"; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -2870,11 +3450,15 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2881,15 +3465,16 @@
   done
 IFS=$as_save_IFS
 
+fi ;;
+esac
 fi
-fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-$as_echo "$CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -2902,12 +3487,13 @@
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_CC"; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_CC+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -2914,11 +3500,15 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2925,15 +3515,16 @@
   done
 IFS=$as_save_IFS
 
+fi ;;
+esac
 fi
-fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-$as_echo "$ac_ct_CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf "%s\n" "$ac_ct_CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -2945,8 +3536,8 @@
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
@@ -2954,18 +3545,124 @@
 fi
 
 fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}clang", so it can be a program name with args.
+set dummy ${ac_tool_prefix}clang; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}clang"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
 
+fi ;;
+esac
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
 
-test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "clang", so it can be a program name with args.
+set dummy clang; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_CC+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="clang"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi ;;
+esac
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf "%s\n" "$ac_ct_CC" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+fi
+
+
+test -z "$CC" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "no acceptable C compiler found in \$PATH
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 
 # Provide some information about the compiler.
-$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
 set X $ac_compile
 ac_compiler=$2
-for ac_option in --version -v -V -qversion; do
+for ac_option in --version -v -V -qversion -version; do
   { { ac_try="$ac_compiler $ac_option >&5"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
@@ -2972,7 +3669,7 @@
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_compiler $ac_option >&5") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -2982,7 +3679,7 @@
     cat conftest.er1 >&5
   fi
   rm -f conftest.er1 conftest.err
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 done
 
@@ -2990,7 +3687,7 @@
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -3002,9 +3699,9 @@
 # Try to create an executable without -o first, disregard a.out.
 # It will help us diagnose broken compilers, and finding out an intuition
 # of exeext.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
-$as_echo_n "checking whether the C compiler works... " >&6; }
-ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+printf %s "checking whether the C compiler works... " >&6; }
+ac_link_default=`printf "%s\n" "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
 
 # The possible output files:
 ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
@@ -3025,13 +3722,14 @@
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_link_default") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then :
-  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
-# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+then :
+  # Autoconf-2.13 could set the ac_cv_exeext variable to 'no'.
+# So ignore a value of 'no', otherwise this would lead to 'EXEEXT = no'
 # in a Makefile.  We should not override ac_cv_exeext if it was cached,
 # so that the user can short-circuit this test for compilers unknown to
 # Autoconf.
@@ -3046,12 +3744,12 @@
 	# certainly right.
 	break;;
     *.* )
-	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	if test ${ac_cv_exeext+y} && test "$ac_cv_exeext" != no;
 	then :; else
 	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
 	fi
 	# We set ac_cv_exeext here because the later test for it is not
-	# safe: cross compilers may not add the suffix if given an `-o'
+	# safe: cross compilers may not add the suffix if given an '-o'
 	# argument, so we may need to know it at that point already.
 	# Even if this section looks crufty: it has the advantage of
 	# actually working.
@@ -3062,33 +3760,36 @@
 done
 test "$ac_cv_exeext" = no && ac_cv_exeext=
 
-else
-  ac_file=''
+else case e in #(
+  e) ac_file='' ;;
+esac
 fi
-if test -z "$ac_file"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-$as_echo "$as_me: failed program was:" >&5
+if test -z "$ac_file"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "C compiler cannot create executables
-See \`config.log' for more details" "$LINENO" 5; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
+See 'config.log' for more details" "$LINENO" 5; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; } ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
-$as_echo_n "checking for C compiler default output file name... " >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
-$as_echo "$ac_file" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+printf %s "checking for C compiler default output file name... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+printf "%s\n" "$ac_file" >&6; }
 ac_exeext=$ac_cv_exeext
 
 rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
 ac_clean_files=$ac_clean_files_save
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
-$as_echo_n "checking for suffix of executables... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+printf %s "checking for suffix of executables... " >&6; }
 if { { ac_try="$ac_link"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
@@ -3095,15 +3796,16 @@
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then :
-  # If both `conftest.exe' and `conftest' are `present' (well, observable)
-# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
-# work properly (i.e., refer to `conftest.exe'), while it won't with
-# `rm'.
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+then :
+  # If both 'conftest.exe' and 'conftest' are 'present' (well, observable)
+# catch 'conftest.exe'.  For instance with Cygwin, 'ls conftest' will
+# work properly (i.e., refer to 'conftest.exe'), while it won't with
+# 'rm'.
 for ac_file in conftest.exe conftest conftest.*; do
   test -f "$ac_file" || continue
   case $ac_file in
@@ -3113,15 +3815,16 @@
     * ) break;;
   esac
 done
-else
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
 rm -f conftest conftest$ac_cv_exeext
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
-$as_echo "$ac_cv_exeext" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+printf "%s\n" "$ac_cv_exeext" >&6; }
 
 rm -f conftest.$ac_ext
 EXEEXT=$ac_cv_exeext
@@ -3130,9 +3833,11 @@
 /* end confdefs.h.  */
 #include <stdio.h>
 int
-main ()
+main (void)
 {
 FILE *f = fopen ("conftest.out", "w");
+ if (!f)
+  return 1;
  return ferror (f) || fclose (f) != 0;
 
   ;
@@ -3142,8 +3847,8 @@
 ac_clean_files="$ac_clean_files conftest.out"
 # Check that the compiler produces executables we can run.  If not, either
 # the compiler is broken, or we cross compile.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
-$as_echo_n "checking whether we are cross compiling... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+printf %s "checking whether we are cross compiling... " >&6; }
 if test "$cross_compiling" != yes; then
   { { ac_try="$ac_link"
 case "(($ac_try" in
@@ -3151,10 +3856,10 @@
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
   if { ac_try='./conftest$ac_cv_exeext'
   { { case "(($ac_try" in
@@ -3162,10 +3867,10 @@
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_try") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; }; then
     cross_compiling=no
   else
@@ -3172,29 +3877,31 @@
     if test "$cross_compiling" = maybe; then
 	cross_compiling=yes
     else
-	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot run C compiled programs.
-If you meant to cross compile, use \`--host'.
-See \`config.log' for more details" "$LINENO" 5; }
+	{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
+as_fn_error 77 "cannot run C compiled programs.
+If you meant to cross compile, use '--host'.
+See 'config.log' for more details" "$LINENO" 5; }
     fi
   fi
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
-$as_echo "$cross_compiling" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+printf "%s\n" "$cross_compiling" >&6; }
 
-rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+rm -f conftest.$ac_ext conftest$ac_cv_exeext \
+  conftest.o conftest.obj conftest.out
 ac_clean_files=$ac_clean_files_save
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
-$as_echo_n "checking for suffix of object files... " >&6; }
-if ${ac_cv_objext+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+printf %s "checking for suffix of object files... " >&6; }
+if test ${ac_cv_objext+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -3208,11 +3915,12 @@
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_compile") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then :
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+then :
   for ac_file in conftest.o conftest.obj conftest.*; do
   test -f "$ac_file" || continue;
   case $ac_file in
@@ -3221,31 +3929,34 @@
        break;;
   esac
 done
-else
-  $as_echo "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of object files: cannot compile
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
-rm -f conftest.$ac_cv_objext conftest.$ac_ext
+rm -f conftest.$ac_cv_objext conftest.$ac_ext ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
-$as_echo "$ac_cv_objext" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+printf "%s\n" "$ac_cv_objext" >&6; }
 OBJEXT=$ac_cv_objext
 ac_objext=$OBJEXT
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
-$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
-if ${ac_cv_c_compiler_gnu+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C" >&5
+printf %s "checking whether the compiler supports GNU C... " >&6; }
+if test ${ac_cv_c_compiler_gnu+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 #ifndef __GNUC__
        choke me
@@ -3255,30 +3966,36 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_compiler_gnu=yes
-else
-  ac_compiler_gnu=no
+else case e in #(
+  e) ac_compiler_gnu=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
+ ;;
+esac
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+printf "%s\n" "$ac_cv_c_compiler_gnu" >&6; }
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
-$as_echo "$ac_cv_c_compiler_gnu" >&6; }
 if test $ac_compiler_gnu = yes; then
   GCC=yes
 else
   GCC=
 fi
-ac_test_CFLAGS=${CFLAGS+set}
+ac_test_CFLAGS=${CFLAGS+y}
 ac_save_CFLAGS=$CFLAGS
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
-$as_echo_n "checking whether $CC accepts -g... " >&6; }
-if ${ac_cv_prog_cc_g+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_save_c_werror_flag=$ac_c_werror_flag
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+printf %s "checking whether $CC accepts -g... " >&6; }
+if test ${ac_cv_prog_cc_g+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_save_c_werror_flag=$ac_c_werror_flag
    ac_c_werror_flag=yes
    ac_cv_prog_cc_g=no
    CFLAGS="-g"
@@ -3286,7 +4003,7 @@
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -3293,15 +4010,16 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_cv_prog_cc_g=yes
-else
-  CFLAGS=""
+else case e in #(
+  e) CFLAGS=""
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -3308,16 +4026,17 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-else
-  ac_c_werror_flag=$ac_save_c_werror_flag
+else case e in #(
+  e) ac_c_werror_flag=$ac_save_c_werror_flag
 	 CFLAGS="-g"
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -3324,19 +4043,23 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_cv_prog_cc_g=yes
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-   ac_c_werror_flag=$ac_save_c_werror_flag
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
-$as_echo "$ac_cv_prog_cc_g" >&6; }
-if test "$ac_test_CFLAGS" = set; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+printf "%s\n" "$ac_cv_prog_cc_g" >&6; }
+if test $ac_test_CFLAGS; then
   CFLAGS=$ac_save_CFLAGS
 elif test $ac_cv_prog_cc_g = yes; then
   if test "$GCC" = yes; then
@@ -3351,95 +4074,154 @@
     CFLAGS=
   fi
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
-$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
-if ${ac_cv_prog_cc_c89+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_cv_prog_cc_c89=no
+ac_prog_cc_stdc=no
+if test x$ac_prog_cc_stdc = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C11 features" >&5
+printf %s "checking for $CC option to enable C11 features... " >&6; }
+if test ${ac_cv_prog_cc_c11+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_cv_prog_cc_c11=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <stdarg.h>
-#include <stdio.h>
-struct stat;
-/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
-struct buf { int x; };
-FILE * (*rcsopen) (struct buf *, struct stat *, int);
-static char *e (p, i)
-     char **p;
-     int i;
-{
-  return p[i];
-}
-static char *f (char * (*g) (char **, int), char **p, ...)
-{
-  char *s;
-  va_list v;
-  va_start (v,p);
-  s = g (p, va_arg (v,int));
-  va_end (v);
-  return s;
-}
+$ac_c_conftest_c11_program
+_ACEOF
+for ac_arg in '' -std=gnu11
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_prog_cc_c11=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+  test "x$ac_cv_prog_cc_c11" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC ;;
+esac
+fi
 
-/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
-   function prototypes and stuff, but not '\xHH' hex character constants.
-   These don't provoke an error unfortunately, instead are silently treated
-   as 'x'.  The following induces an error, until -std is added to get
-   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
-   array size at least.  It's necessary to write '\x00'==0 to get something
-   that's true only with -std.  */
-int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+if test "x$ac_cv_prog_cc_c11" = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf "%s\n" "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c11" = x
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf "%s\n" "none needed" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
+printf "%s\n" "$ac_cv_prog_cc_c11" >&6; }
+     CC="$CC $ac_cv_prog_cc_c11" ;;
+esac
+fi
+  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11
+  ac_prog_cc_stdc=c11 ;;
+esac
+fi
+fi
+if test x$ac_prog_cc_stdc = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C99 features" >&5
+printf %s "checking for $CC option to enable C99 features... " >&6; }
+if test ${ac_cv_prog_cc_c99+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_cv_prog_cc_c99=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_c_conftest_c99_program
+_ACEOF
+for ac_arg in '' -std=gnu99 -std=c99 -c99 -qlanglvl=extc1x -qlanglvl=extc99 -AC99 -D_STDC_C99=
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_prog_cc_c99=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+  test "x$ac_cv_prog_cc_c99" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC ;;
+esac
+fi
 
-/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
-   inside strings and character constants.  */
-#define FOO(x) 'x'
-int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
-
-int test (int i, double x);
-struct s1 {int (*f) (int a);};
-struct s2 {int (*f) (double a);};
-int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
-int argc;
-char **argv;
-int
-main ()
-{
-return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
-  ;
-  return 0;
-}
+if test "x$ac_cv_prog_cc_c99" = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf "%s\n" "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c99" = x
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf "%s\n" "none needed" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
+printf "%s\n" "$ac_cv_prog_cc_c99" >&6; }
+     CC="$CC $ac_cv_prog_cc_c99" ;;
+esac
+fi
+  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99
+  ac_prog_cc_stdc=c99 ;;
+esac
+fi
+fi
+if test x$ac_prog_cc_stdc = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C89 features" >&5
+printf %s "checking for $CC option to enable C89 features... " >&6; }
+if test ${ac_cv_prog_cc_c89+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_c_conftest_c89_program
 _ACEOF
-for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
-	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
 do
   CC="$ac_save_CC $ac_arg"
-  if ac_fn_c_try_compile "$LINENO"; then :
+  if ac_fn_c_try_compile "$LINENO"
+then :
   ac_cv_prog_cc_c89=$ac_arg
 fi
-rm -f core conftest.err conftest.$ac_objext
+rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c89" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
+fi
 
+if test "x$ac_cv_prog_cc_c89" = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf "%s\n" "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c89" = x
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf "%s\n" "none needed" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+printf "%s\n" "$ac_cv_prog_cc_c89" >&6; }
+     CC="$CC $ac_cv_prog_cc_c89" ;;
+esac
 fi
-# AC_CACHE_VAL
-case "x$ac_cv_prog_cc_c89" in
-  x)
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-$as_echo "none needed" >&6; } ;;
-  xno)
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-$as_echo "unsupported" >&6; } ;;
-  *)
-    CC="$CC $ac_cv_prog_cc_c89"
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
-$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
+  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
+  ac_prog_cc_stdc=c89 ;;
 esac
-if test "x$ac_cv_prog_cc_c89" != xno; then :
-
 fi
+fi
 
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
@@ -3447,6 +4229,12 @@
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
+
+
+
+
+
+
 ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -3457,16 +4245,17 @@
     CXX=$CCC
   else
     if test -n "$ac_tool_prefix"; then
-  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC clang++
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CXX+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$CXX"; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CXX+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$CXX"; then
   ac_cv_prog_CXX="$CXX" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3473,11 +4262,15 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -3484,15 +4277,16 @@
   done
 IFS=$as_save_IFS
 
+fi ;;
+esac
 fi
-fi
 CXX=$ac_cv_prog_CXX
 if test -n "$CXX"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
-$as_echo "$CXX" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
+printf "%s\n" "$CXX" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -3501,16 +4295,17 @@
 fi
 if test -z "$CXX"; then
   ac_ct_CXX=$CXX
-  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC clang++
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_CXX+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_CXX"; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_CXX+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$ac_ct_CXX"; then
   ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3517,11 +4312,15 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CXX="$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -3528,15 +4327,16 @@
   done
 IFS=$as_save_IFS
 
+fi ;;
+esac
 fi
-fi
 ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
 if test -n "$ac_ct_CXX"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
-$as_echo "$ac_ct_CXX" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
+printf "%s\n" "$ac_ct_CXX" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -3548,8 +4348,8 @@
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CXX=$ac_ct_CXX
@@ -3559,7 +4359,7 @@
   fi
 fi
 # Provide some information about the compiler.
-$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
+printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
 set X $ac_compile
 ac_compiler=$2
 for ac_option in --version -v -V -qversion; do
@@ -3569,7 +4369,7 @@
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_compiler $ac_option >&5") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -3579,20 +4379,21 @@
     cat conftest.er1 >&5
   fi
   rm -f conftest.er1 conftest.err
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 done
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5
-$as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; }
-if ${ac_cv_cxx_compiler_gnu+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C++" >&5
+printf %s "checking whether the compiler supports GNU C++... " >&6; }
+if test ${ac_cv_cxx_compiler_gnu+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 #ifndef __GNUC__
        choke me
@@ -3602,30 +4403,36 @@
   return 0;
 }
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"
+then :
   ac_compiler_gnu=yes
-else
-  ac_compiler_gnu=no
+else case e in #(
+  e) ac_compiler_gnu=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
+ ;;
+esac
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
+printf "%s\n" "$ac_cv_cxx_compiler_gnu" >&6; }
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
-$as_echo "$ac_cv_cxx_compiler_gnu" >&6; }
 if test $ac_compiler_gnu = yes; then
   GXX=yes
 else
   GXX=
 fi
-ac_test_CXXFLAGS=${CXXFLAGS+set}
+ac_test_CXXFLAGS=${CXXFLAGS+y}
 ac_save_CXXFLAGS=$CXXFLAGS
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
-$as_echo_n "checking whether $CXX accepts -g... " >&6; }
-if ${ac_cv_prog_cxx_g+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
+printf %s "checking whether $CXX accepts -g... " >&6; }
+if test ${ac_cv_prog_cxx_g+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_save_cxx_werror_flag=$ac_cxx_werror_flag
    ac_cxx_werror_flag=yes
    ac_cv_prog_cxx_g=no
    CXXFLAGS="-g"
@@ -3633,7 +4440,7 @@
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -3640,15 +4447,16 @@
   return 0;
 }
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"
+then :
   ac_cv_prog_cxx_g=yes
-else
-  CXXFLAGS=""
+else case e in #(
+  e) CXXFLAGS=""
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -3655,16 +4463,17 @@
   return 0;
 }
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"
+then :
 
-else
-  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+else case e in #(
+  e) ac_cxx_werror_flag=$ac_save_cxx_werror_flag
 	 CXXFLAGS="-g"
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -3671,19 +4480,23 @@
   return 0;
 }
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"
+then :
   ac_cv_prog_cxx_g=yes
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+   ac_cxx_werror_flag=$ac_save_cxx_werror_flag ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
-$as_echo "$ac_cv_prog_cxx_g" >&6; }
-if test "$ac_test_CXXFLAGS" = set; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
+printf "%s\n" "$ac_cv_prog_cxx_g" >&6; }
+if test $ac_test_CXXFLAGS; then
   CXXFLAGS=$ac_save_CXXFLAGS
 elif test $ac_cv_prog_cxx_g = yes; then
   if test "$GXX" = yes; then
@@ -3698,6 +4511,106 @@
     CXXFLAGS=
   fi
 fi
+ac_prog_cxx_stdcxx=no
+if test x$ac_prog_cxx_stdcxx = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CXX option to enable C++11 features" >&5
+printf %s "checking for $CXX option to enable C++11 features... " >&6; }
+if test ${ac_cv_prog_cxx_cxx11+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_cv_prog_cxx_cxx11=no
+ac_save_CXX=$CXX
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_cxx_conftest_cxx11_program
+_ACEOF
+for ac_arg in '' -std=gnu++11 -std=gnu++0x -std=c++11 -std=c++0x -qlanglvl=extended0x -AA
+do
+  CXX="$ac_save_CXX $ac_arg"
+  if ac_fn_cxx_try_compile "$LINENO"
+then :
+  ac_cv_prog_cxx_cxx11=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+  test "x$ac_cv_prog_cxx_cxx11" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CXX=$ac_save_CXX ;;
+esac
+fi
+
+if test "x$ac_cv_prog_cxx_cxx11" = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf "%s\n" "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cxx_cxx11" = x
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf "%s\n" "none needed" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx11" >&5
+printf "%s\n" "$ac_cv_prog_cxx_cxx11" >&6; }
+     CXX="$CXX $ac_cv_prog_cxx_cxx11" ;;
+esac
+fi
+  ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx11
+  ac_prog_cxx_stdcxx=cxx11 ;;
+esac
+fi
+fi
+if test x$ac_prog_cxx_stdcxx = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CXX option to enable C++98 features" >&5
+printf %s "checking for $CXX option to enable C++98 features... " >&6; }
+if test ${ac_cv_prog_cxx_cxx98+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_cv_prog_cxx_cxx98=no
+ac_save_CXX=$CXX
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_cxx_conftest_cxx98_program
+_ACEOF
+for ac_arg in '' -std=gnu++98 -std=c++98 -qlanglvl=extended -AA
+do
+  CXX="$ac_save_CXX $ac_arg"
+  if ac_fn_cxx_try_compile "$LINENO"
+then :
+  ac_cv_prog_cxx_cxx98=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+  test "x$ac_cv_prog_cxx_cxx98" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CXX=$ac_save_CXX ;;
+esac
+fi
+
+if test "x$ac_cv_prog_cxx_cxx98" = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf "%s\n" "unsupported" >&6; }
+else case e in #(
+  e) if test "x$ac_cv_prog_cxx_cxx98" = x
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf "%s\n" "none needed" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx98" >&5
+printf "%s\n" "$ac_cv_prog_cxx_cxx98" >&6; }
+     CXX="$CXX $ac_cv_prog_cxx_cxx98" ;;
+esac
+fi
+  ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx98
+  ac_prog_cxx_stdcxx=cxx98 ;;
+esac
+fi
+fi
+
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -3722,7 +4635,7 @@
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -3729,12 +4642,14 @@
   return 0;
 }
 _ACEOF
-if ac_fn_cxx_try_link "$LINENO"; then :
+if ac_fn_cxx_try_link "$LINENO"
+then :
 
-else
-  as_fn_error $? "C++ compiler does not work" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "C++ compiler does not work" "$LINENO" 5 ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
@@ -3746,12 +4661,13 @@
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
 set dummy ${ac_tool_prefix}ranlib; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_RANLIB+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$RANLIB"; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_RANLIB+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$RANLIB"; then
   ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3758,11 +4674,15 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -3769,15 +4689,16 @@
   done
 IFS=$as_save_IFS
 
+fi ;;
+esac
 fi
-fi
 RANLIB=$ac_cv_prog_RANLIB
 if test -n "$RANLIB"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
-$as_echo "$RANLIB" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
+printf "%s\n" "$RANLIB" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -3786,12 +4707,13 @@
   ac_ct_RANLIB=$RANLIB
   # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_RANLIB+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_RANLIB"; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_RANLIB+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$ac_ct_RANLIB"; then
   ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3798,11 +4720,15 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_RANLIB="ranlib"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -3809,15 +4735,16 @@
   done
 IFS=$as_save_IFS
 
+fi ;;
+esac
 fi
-fi
 ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
 if test -n "$ac_ct_RANLIB"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
-$as_echo "$ac_ct_RANLIB" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
+printf "%s\n" "$ac_ct_RANLIB" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
   if test "x$ac_ct_RANLIB" = x; then
@@ -3825,8 +4752,8 @@
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     RANLIB=$ac_ct_RANLIB
@@ -3840,12 +4767,13 @@
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_AR+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$AR"; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_AR+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$AR"; then
   ac_cv_prog_AR="$AR" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3852,11 +4780,15 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -3863,15 +4795,16 @@
   done
 IFS=$as_save_IFS
 
+fi ;;
+esac
 fi
-fi
 AR=$ac_cv_prog_AR
 if test -n "$AR"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
-$as_echo "$AR" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+printf "%s\n" "$AR" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -3884,12 +4817,13 @@
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_AR+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_AR"; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_AR+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$ac_ct_AR"; then
   ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3896,11 +4830,15 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_AR="$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -3907,15 +4845,16 @@
   done
 IFS=$as_save_IFS
 
+fi ;;
+esac
 fi
-fi
 ac_ct_AR=$ac_cv_prog_ac_ct_AR
 if test -n "$ac_ct_AR"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
-$as_echo "$ac_ct_AR" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+printf "%s\n" "$ac_ct_AR" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -3927,8 +4866,8 @@
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     AR=$ac_ct_AR
@@ -3999,12 +4938,13 @@
 fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lpthread" >&5
-$as_echo_n "checking for pthread_create in -lpthread... " >&6; }
-if ${ac_cv_lib_pthread_pthread_create+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lpthread" >&5
+printf %s "checking for pthread_create in -lpthread... " >&6; }
+if test ${ac_cv_lib_pthread_pthread_create+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lpthread  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4011,13 +4951,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char pthread_create ();
+char pthread_create (void);
 int
-main ()
+main (void)
 {
 return pthread_create ();
   ;
@@ -4024,32 +4967,35 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_pthread_pthread_create=yes
-else
-  ac_cv_lib_pthread_pthread_create=no
+else case e in #(
+  e) ac_cv_lib_pthread_pthread_create=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread_pthread_create" >&5
-$as_echo "$ac_cv_lib_pthread_pthread_create" >&6; }
-if test "x$ac_cv_lib_pthread_pthread_create" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBPTHREAD 1
-_ACEOF
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread_pthread_create" >&5
+printf "%s\n" "$ac_cv_lib_pthread_pthread_create" >&6; }
+if test "x$ac_cv_lib_pthread_pthread_create" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBPTHREAD 1" >>confdefs.h
 
   LIBS="-lpthread $LIBS"
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for puts in -lwsock32" >&5
-$as_echo_n "checking for puts in -lwsock32... " >&6; }
-if ${ac_cv_lib_wsock32_puts+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for puts in -lwsock32" >&5
+printf %s "checking for puts in -lwsock32... " >&6; }
+if test ${ac_cv_lib_wsock32_puts+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lwsock32  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4056,13 +5002,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char puts ();
+char puts (void);
 int
-main ()
+main (void)
 {
 return puts ();
   ;
@@ -4069,32 +5018,35 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_wsock32_puts=yes
-else
-  ac_cv_lib_wsock32_puts=no
+else case e in #(
+  e) ac_cv_lib_wsock32_puts=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_wsock32_puts" >&5
-$as_echo "$ac_cv_lib_wsock32_puts" >&6; }
-if test "x$ac_cv_lib_wsock32_puts" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBWSOCK32 1
-_ACEOF
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_wsock32_puts" >&5
+printf "%s\n" "$ac_cv_lib_wsock32_puts" >&6; }
+if test "x$ac_cv_lib_wsock32_puts" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBWSOCK32 1" >>confdefs.h
 
   LIBS="-lwsock32 $LIBS"
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for puts in -lws2_32" >&5
-$as_echo_n "checking for puts in -lws2_32... " >&6; }
-if ${ac_cv_lib_ws2_32_puts+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for puts in -lws2_32" >&5
+printf %s "checking for puts in -lws2_32... " >&6; }
+if test ${ac_cv_lib_ws2_32_puts+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lws2_32  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4101,13 +5053,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char puts ();
+char puts (void);
 int
-main ()
+main (void)
 {
 return puts ();
   ;
@@ -4114,32 +5069,35 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_ws2_32_puts=yes
-else
-  ac_cv_lib_ws2_32_puts=no
+else case e in #(
+  e) ac_cv_lib_ws2_32_puts=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ws2_32_puts" >&5
-$as_echo "$ac_cv_lib_ws2_32_puts" >&6; }
-if test "x$ac_cv_lib_ws2_32_puts" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBWS2_32 1
-_ACEOF
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ws2_32_puts" >&5
+printf "%s\n" "$ac_cv_lib_ws2_32_puts" >&6; }
+if test "x$ac_cv_lib_ws2_32_puts" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBWS2_32 1" >>confdefs.h
 
   LIBS="-lws2_32 $LIBS"
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for puts in -lole32" >&5
-$as_echo_n "checking for puts in -lole32... " >&6; }
-if ${ac_cv_lib_ole32_puts+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for puts in -lole32" >&5
+printf %s "checking for puts in -lole32... " >&6; }
+if test ${ac_cv_lib_ole32_puts+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lole32  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4146,13 +5104,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char puts ();
+char puts (void);
 int
-main ()
+main (void)
 {
 return puts ();
   ;
@@ -4159,32 +5120,35 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_ole32_puts=yes
-else
-  ac_cv_lib_ole32_puts=no
+else case e in #(
+  e) ac_cv_lib_ole32_puts=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ole32_puts" >&5
-$as_echo "$ac_cv_lib_ole32_puts" >&6; }
-if test "x$ac_cv_lib_ole32_puts" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBOLE32 1
-_ACEOF
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ole32_puts" >&5
+printf "%s\n" "$ac_cv_lib_ole32_puts" >&6; }
+if test "x$ac_cv_lib_ole32_puts" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBOLE32 1" >>confdefs.h
 
   LIBS="-lole32 $LIBS"
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for puts in -lwinmm" >&5
-$as_echo_n "checking for puts in -lwinmm... " >&6; }
-if ${ac_cv_lib_winmm_puts+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for puts in -lwinmm" >&5
+printf %s "checking for puts in -lwinmm... " >&6; }
+if test ${ac_cv_lib_winmm_puts+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lwinmm  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4191,13 +5155,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char puts ();
+char puts (void);
 int
-main ()
+main (void)
 {
 return puts ();
   ;
@@ -4204,32 +5171,35 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_winmm_puts=yes
-else
-  ac_cv_lib_winmm_puts=no
+else case e in #(
+  e) ac_cv_lib_winmm_puts=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_winmm_puts" >&5
-$as_echo "$ac_cv_lib_winmm_puts" >&6; }
-if test "x$ac_cv_lib_winmm_puts" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBWINMM 1
-_ACEOF
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_winmm_puts" >&5
+printf "%s\n" "$ac_cv_lib_winmm_puts" >&6; }
+if test "x$ac_cv_lib_winmm_puts" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBWINMM 1" >>confdefs.h
 
   LIBS="-lwinmm $LIBS"
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for puts in -lsocket" >&5
-$as_echo_n "checking for puts in -lsocket... " >&6; }
-if ${ac_cv_lib_socket_puts+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for puts in -lsocket" >&5
+printf %s "checking for puts in -lsocket... " >&6; }
+if test ${ac_cv_lib_socket_puts+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lsocket  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4236,13 +5206,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char puts ();
+char puts (void);
 int
-main ()
+main (void)
 {
 return puts ();
   ;
@@ -4249,32 +5222,35 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_socket_puts=yes
-else
-  ac_cv_lib_socket_puts=no
+else case e in #(
+  e) ac_cv_lib_socket_puts=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_socket_puts" >&5
-$as_echo "$ac_cv_lib_socket_puts" >&6; }
-if test "x$ac_cv_lib_socket_puts" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBSOCKET 1
-_ACEOF
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_socket_puts" >&5
+printf "%s\n" "$ac_cv_lib_socket_puts" >&6; }
+if test "x$ac_cv_lib_socket_puts" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBSOCKET 1" >>confdefs.h
 
   LIBS="-lsocket $LIBS"
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for puts in -lrt" >&5
-$as_echo_n "checking for puts in -lrt... " >&6; }
-if ${ac_cv_lib_rt_puts+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for puts in -lrt" >&5
+printf %s "checking for puts in -lrt... " >&6; }
+if test ${ac_cv_lib_rt_puts+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lrt  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4281,13 +5257,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char puts ();
+char puts (void);
 int
-main ()
+main (void)
 {
 return puts ();
   ;
@@ -4294,32 +5273,35 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_rt_puts=yes
-else
-  ac_cv_lib_rt_puts=no
+else case e in #(
+  e) ac_cv_lib_rt_puts=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_puts" >&5
-$as_echo "$ac_cv_lib_rt_puts" >&6; }
-if test "x$ac_cv_lib_rt_puts" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBRT 1
-_ACEOF
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_puts" >&5
+printf "%s\n" "$ac_cv_lib_rt_puts" >&6; }
+if test "x$ac_cv_lib_rt_puts" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBRT 1" >>confdefs.h
 
   LIBS="-lrt $LIBS"
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5
-$as_echo_n "checking for sin in -lm... " >&6; }
-if ${ac_cv_lib_m_sin+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5
+printf %s "checking for sin in -lm... " >&6; }
+if test ${ac_cv_lib_m_sin+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4326,13 +5308,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char sin ();
+char sin (void);
 int
-main ()
+main (void)
 {
 return sin ();
   ;
@@ -4339,32 +5324,35 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_m_sin=yes
-else
-  ac_cv_lib_m_sin=no
+else case e in #(
+  e) ac_cv_lib_m_sin=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sin" >&5
-$as_echo "$ac_cv_lib_m_sin" >&6; }
-if test "x$ac_cv_lib_m_sin" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBM 1
-_ACEOF
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sin" >&5
+printf "%s\n" "$ac_cv_lib_m_sin" >&6; }
+if test "x$ac_cv_lib_m_sin" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBM 1" >>confdefs.h
 
   LIBS="-lm $LIBS"
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for uuid_generate in -luuid" >&5
-$as_echo_n "checking for uuid_generate in -luuid... " >&6; }
-if ${ac_cv_lib_uuid_uuid_generate+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for uuid_generate in -luuid" >&5
+printf %s "checking for uuid_generate in -luuid... " >&6; }
+if test ${ac_cv_lib_uuid_uuid_generate+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-luuid  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4371,13 +5359,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char uuid_generate ();
+char uuid_generate (void);
 int
-main ()
+main (void)
 {
 return uuid_generate ();
   ;
@@ -4384,32 +5375,35 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_uuid_uuid_generate=yes
-else
-  ac_cv_lib_uuid_uuid_generate=no
+else case e in #(
+  e) ac_cv_lib_uuid_uuid_generate=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_uuid_uuid_generate" >&5
-$as_echo "$ac_cv_lib_uuid_uuid_generate" >&6; }
-if test "x$ac_cv_lib_uuid_uuid_generate" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBUUID 1
-_ACEOF
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_uuid_uuid_generate" >&5
+printf "%s\n" "$ac_cv_lib_uuid_uuid_generate" >&6; }
+if test "x$ac_cv_lib_uuid_uuid_generate" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBUUID 1" >>confdefs.h
 
   LIBS="-luuid $LIBS"
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for uuid_generate in -luuid" >&5
-$as_echo_n "checking for uuid_generate in -luuid... " >&6; }
-if ${ac_cv_lib_uuid_uuid_generate+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for uuid_generate in -luuid" >&5
+printf %s "checking for uuid_generate in -luuid... " >&6; }
+if test ${ac_cv_lib_uuid_uuid_generate+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-luuid  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4416,13 +5410,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char uuid_generate ();
+char uuid_generate (void);
 int
-main ()
+main (void)
 {
 return uuid_generate ();
   ;
@@ -4429,39 +5426,47 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_uuid_uuid_generate=yes
-else
-  ac_cv_lib_uuid_uuid_generate=no
+else case e in #(
+  e) ac_cv_lib_uuid_uuid_generate=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_uuid_uuid_generate" >&5
-$as_echo "$ac_cv_lib_uuid_uuid_generate" >&6; }
-if test "x$ac_cv_lib_uuid_uuid_generate" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_uuid_uuid_generate" >&5
+printf "%s\n" "$ac_cv_lib_uuid_uuid_generate" >&6; }
+if test "x$ac_cv_lib_uuid_uuid_generate" = xyes
+then :
   ac_has_uuid_lib=1
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing gethostbyname" >&5
-$as_echo_n "checking for library containing gethostbyname... " >&6; }
-if ${ac_cv_search_gethostbyname+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_func_search_save_LIBS=$LIBS
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing gethostbyname" >&5
+printf %s "checking for library containing gethostbyname... " >&6; }
+if test ${ac_cv_search_gethostbyname+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_func_search_save_LIBS=$LIBS
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char gethostbyname ();
+char gethostbyname (void);
 int
-main ()
+main (void)
 {
 return gethostbyname ();
   ;
@@ -4468,7 +5473,8 @@
   return 0;
 }
 _ACEOF
-for ac_lib in '' nsl; do
+for ac_lib in '' nsl
+do
   if test -z "$ac_lib"; then
     ac_res="none required"
   else
@@ -4475,460 +5481,97 @@
     ac_res=-l$ac_lib
     LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
   fi
-  if ac_fn_c_try_link "$LINENO"; then :
+  if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_search_gethostbyname=$ac_res
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext
-  if ${ac_cv_search_gethostbyname+:} false; then :
+  if test ${ac_cv_search_gethostbyname+y}
+then :
   break
 fi
 done
-if ${ac_cv_search_gethostbyname+:} false; then :
+if test ${ac_cv_search_gethostbyname+y}
+then :
 
-else
-  ac_cv_search_gethostbyname=no
+else case e in #(
+  e) ac_cv_search_gethostbyname=no ;;
+esac
 fi
 rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
+LIBS=$ac_func_search_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_gethostbyname" >&5
-$as_echo "$ac_cv_search_gethostbyname" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_gethostbyname" >&5
+printf "%s\n" "$ac_cv_search_gethostbyname" >&6; }
 ac_res=$ac_cv_search_gethostbyname
-if test "$ac_res" != no; then :
+if test "$ac_res" != no
+then :
   test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
 
 fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Setting PJ_M_NAME to $target_cpu" >&5
-$as_echo "Setting PJ_M_NAME to $target_cpu" >&6; }
-cat >>confdefs.h <<_ACEOF
-#define PJ_M_NAME "$target_cpu"
-_ACEOF
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Setting PJ_M_NAME to $target_cpu" >&5
+printf "%s\n" "Setting PJ_M_NAME to $target_cpu" >&6; }
+printf "%s\n" "#define PJ_M_NAME \"$target_cpu\"" >>confdefs.h
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking memory alignment" >&5
-$as_echo_n "checking memory alignment... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking memory alignment" >&5
+printf %s "checking memory alignment... " >&6; }
 case $target in
     sparc64-* | ia64-* | x86_64-* | arm64-* | aarch64-* | mips64* )
-	$as_echo "#define PJ_POOL_ALIGNMENT 8" >>confdefs.h
+	printf "%s\n" "#define PJ_POOL_ALIGNMENT 8" >>confdefs.h
 
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: 8 bytes" >&5
-$as_echo "8 bytes" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: 8 bytes" >&5
+printf "%s\n" "8 bytes" >&6; }
 	;;
     * )
-	$as_echo "#define PJ_POOL_ALIGNMENT 4" >>confdefs.h
+	printf "%s\n" "#define PJ_POOL_ALIGNMENT 4" >>confdefs.h
 
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: 4 bytes (default)" >&5
-$as_echo "4 bytes (default)" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: 4 bytes (default)" >&5
+printf "%s\n" "4 bytes (default)" >&6; }
 	;;
 esac
 
 
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
-$as_echo_n "checking how to run the C preprocessor... " >&6; }
-# On Suns, sometimes $CPP names a directory.
-if test -n "$CPP" && test -d "$CPP"; then
-  CPP=
-fi
-if test -z "$CPP"; then
-  if ${ac_cv_prog_CPP+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-      # Double quotes because CPP needs to be expanded
-    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
-    do
-      ac_preproc_ok=false
-for ac_c_preproc_warn_flag in '' yes
+ac_header= ac_cache=
+for ac_item in $ac_header_c_list
 do
-  # Use a header file that comes with gcc, so configuring glibc
-  # with a fresh cross-compiler works.
-  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-  # <limits.h> exists even on freestanding compilers.
-  # On the NeXT, cc -E runs the code through the compiler's parser,
-  # not just through cpp. "Syntax error" is here to catch this case.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-		     Syntax error
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
-
-else
-  # Broken: fails on valid input.
-continue
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
-  # OK, works on sane cases.  Now check whether nonexistent headers
-  # can be detected and how.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <ac_nonexistent.h>
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
-  # Broken: success on invalid input.
-continue
-else
-  # Passes both tests.
-ac_preproc_ok=:
-break
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
-done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.i conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then :
-  break
-fi
-
-    done
-    ac_cv_prog_CPP=$CPP
-
-fi
-  CPP=$ac_cv_prog_CPP
-else
-  ac_cv_prog_CPP=$CPP
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
-$as_echo "$CPP" >&6; }
-ac_preproc_ok=false
-for ac_c_preproc_warn_flag in '' yes
-do
-  # Use a header file that comes with gcc, so configuring glibc
-  # with a fresh cross-compiler works.
-  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-  # <limits.h> exists even on freestanding compilers.
-  # On the NeXT, cc -E runs the code through the compiler's parser,
-  # not just through cpp. "Syntax error" is here to catch this case.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-		     Syntax error
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
-
-else
-  # Broken: fails on valid input.
-continue
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
-  # OK, works on sane cases.  Now check whether nonexistent headers
-  # can be detected and how.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <ac_nonexistent.h>
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
-  # Broken: success on invalid input.
-continue
-else
-  # Passes both tests.
-ac_preproc_ok=:
-break
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
-done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.i conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then :
-
-else
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details" "$LINENO" 5; }
-fi
-
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
-$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
-if ${ac_cv_path_GREP+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -z "$GREP"; then
-  ac_path_GREP_found=false
-  # Loop through the user's path and test for each of PROGNAME-LIST
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_prog in grep ggrep; do
-    for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_GREP" || continue
-# Check for GNU ac_path_GREP and select it if it is found.
-  # Check for GNU $ac_path_GREP
-case `"$ac_path_GREP" --version 2>&1` in
-*GNU*)
-  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
-*)
-  ac_count=0
-  $as_echo_n 0123456789 >"conftest.in"
-  while :
-  do
-    cat "conftest.in" "conftest.in" >"conftest.tmp"
-    mv "conftest.tmp" "conftest.in"
-    cp "conftest.in" "conftest.nl"
-    $as_echo 'GREP' >> "conftest.nl"
-    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
-    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_GREP_max-0}; then
-      # Best one so far, save it but keep looking for a better one
-      ac_cv_path_GREP="$ac_path_GREP"
-      ac_path_GREP_max=$ac_count
+  if test $ac_cache; then
+    ac_fn_c_check_header_compile "$LINENO" $ac_header ac_cv_header_$ac_cache "$ac_includes_default"
+    if eval test \"x\$ac_cv_header_$ac_cache\" = xyes; then
+      printf "%s\n" "#define $ac_item 1" >> confdefs.h
     fi
-    # 10*(2^10) chars as input seems more than enough
-    test $ac_count -gt 10 && break
-  done
-  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
-      $ac_path_GREP_found && break 3
-    done
-  done
-  done
-IFS=$as_save_IFS
-  if test -z "$ac_cv_path_GREP"; then
-    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+    ac_header= ac_cache=
+  elif test $ac_header; then
+    ac_cache=$ac_item
+  else
+    ac_header=$ac_item
   fi
-else
-  ac_cv_path_GREP=$GREP
-fi
+done
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
-$as_echo "$ac_cv_path_GREP" >&6; }
- GREP="$ac_cv_path_GREP"
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
-$as_echo_n "checking for egrep... " >&6; }
-if ${ac_cv_path_EGREP+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
-   then ac_cv_path_EGREP="$GREP -E"
-   else
-     if test -z "$EGREP"; then
-  ac_path_EGREP_found=false
-  # Loop through the user's path and test for each of PROGNAME-LIST
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_prog in egrep; do
-    for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_EGREP" || continue
-# Check for GNU ac_path_EGREP and select it if it is found.
-  # Check for GNU $ac_path_EGREP
-case `"$ac_path_EGREP" --version 2>&1` in
-*GNU*)
-  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
-*)
-  ac_count=0
-  $as_echo_n 0123456789 >"conftest.in"
-  while :
-  do
-    cat "conftest.in" "conftest.in" >"conftest.tmp"
-    mv "conftest.tmp" "conftest.in"
-    cp "conftest.in" "conftest.nl"
-    $as_echo 'EGREP' >> "conftest.nl"
-    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
-    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
-      # Best one so far, save it but keep looking for a better one
-      ac_cv_path_EGREP="$ac_path_EGREP"
-      ac_path_EGREP_max=$ac_count
-    fi
-    # 10*(2^10) chars as input seems more than enough
-    test $ac_count -gt 10 && break
-  done
-  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
 
-      $ac_path_EGREP_found && break 3
-    done
-  done
-  done
-IFS=$as_save_IFS
-  if test -z "$ac_cv_path_EGREP"; then
-    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
-  fi
-else
-  ac_cv_path_EGREP=$EGREP
-fi
 
-   fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
-$as_echo "$ac_cv_path_EGREP" >&6; }
- EGREP="$ac_cv_path_EGREP"
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
-$as_echo_n "checking for ANSI C header files... " >&6; }
-if ${ac_cv_header_stdc+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <float.h>
 
-int
-main ()
-{
+if test $ac_cv_header_stdlib_h = yes && test $ac_cv_header_string_h = yes
+then :
 
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_header_stdc=yes
-else
-  ac_cv_header_stdc=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+printf "%s\n" "#define STDC_HEADERS 1" >>confdefs.h
 
-if test $ac_cv_header_stdc = yes; then
-  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <string.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "memchr" >/dev/null 2>&1; then :
-
-else
-  ac_cv_header_stdc=no
 fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
-  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdlib.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "free" >/dev/null 2>&1; then :
-
-else
-  ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
-  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
-  if test "$cross_compiling" = yes; then :
-  :
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <ctype.h>
-#include <stdlib.h>
-#if ((' ' & 0x0FF) == 0x020)
-# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
-# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
-#else
-# define ISLOWER(c) \
-		   (('a' <= (c) && (c) <= 'i') \
-		     || ('j' <= (c) && (c) <= 'r') \
-		     || ('s' <= (c) && (c) <= 'z'))
-# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
-#endif
-
-#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
-int
-main ()
-{
-  int i;
-  for (i = 0; i < 256; i++)
-    if (XOR (islower (i), ISLOWER (i))
-	|| toupper (i) != TOUPPER (i))
-      return 2;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-
-else
-  ac_cv_header_stdc=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
-$as_echo "$ac_cv_header_stdc" >&6; }
-if test $ac_cv_header_stdc = yes; then
-
-$as_echo "#define STDC_HEADERS 1" >>confdefs.h
-
-fi
-
-# On IRIX 5.3, sys/types and inttypes.h are conflicting.
-for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
-		  inttypes.h stdint.h unistd.h
-do :
-  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
-"
-if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether byte ordering is bigendian" >&5
-$as_echo_n "checking whether byte ordering is bigendian... " >&6; }
-if ${ac_cv_c_bigendian+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_cv_c_bigendian=unknown
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether byte ordering is bigendian" >&5
+printf %s "checking whether byte ordering is bigendian... " >&6; }
+if test ${ac_cv_c_bigendian+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_cv_c_bigendian=unknown
     # See if we're dealing with a universal compiler.
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4938,7 +5581,8 @@
 	     typedef int dummy;
 
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
 	# Check for potential -arch flags.  It is not universal unless
 	# there are at least two -arch flags with different values.
@@ -4962,7 +5606,7 @@
 	 fi
        done
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
     if test $ac_cv_c_bigendian = unknown; then
       # See if sys/param.h defines the BYTE_ORDER macro.
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -4971,10 +5615,10 @@
 	     #include <sys/param.h>
 
 int
-main ()
+main (void)
 {
-#if ! (defined BYTE_ORDER && defined BIG_ENDIAN \
-		     && defined LITTLE_ENDIAN && BYTE_ORDER && BIG_ENDIAN \
+#if ! (defined BYTE_ORDER && defined BIG_ENDIAN \\
+		     && defined LITTLE_ENDIAN && BYTE_ORDER && BIG_ENDIAN \\
 		     && LITTLE_ENDIAN)
 	      bogus endian macros
 	     #endif
@@ -4983,7 +5627,8 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   # It does; now see whether it defined to BIG_ENDIAN or not.
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4991,7 +5636,7 @@
 		#include <sys/param.h>
 
 int
-main ()
+main (void)
 {
 #if BYTE_ORDER != BIG_ENDIAN
 		 not big endian
@@ -5001,14 +5646,16 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_cv_c_bigendian=yes
-else
-  ac_cv_c_bigendian=no
+else case e in #(
+  e) ac_cv_c_bigendian=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
     fi
     if test $ac_cv_c_bigendian = unknown; then
       # See if <limits.h> defines _LITTLE_ENDIAN or _BIG_ENDIAN (e.g., Solaris).
@@ -5017,7 +5664,7 @@
 #include <limits.h>
 
 int
-main ()
+main (void)
 {
 #if ! (defined _LITTLE_ENDIAN || defined _BIG_ENDIAN)
 	      bogus endian macros
@@ -5027,7 +5674,8 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   # It does; now see whether it defined to _BIG_ENDIAN or not.
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -5034,7 +5682,7 @@
 #include <limits.h>
 
 int
-main ()
+main (void)
 {
 #ifndef _BIG_ENDIAN
 		 not big endian
@@ -5044,50 +5692,55 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_cv_c_bigendian=yes
-else
-  ac_cv_c_bigendian=no
+else case e in #(
+  e) ac_cv_c_bigendian=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
     fi
     if test $ac_cv_c_bigendian = unknown; then
       # Compile a test program.
-      if test "$cross_compiling" = yes; then :
+      if test "$cross_compiling" = yes
+then :
   # Try to guess by grepping values from an object file.
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-short int ascii_mm[] =
+unsigned short int ascii_mm[] =
 		  { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 };
-		short int ascii_ii[] =
+		unsigned short int ascii_ii[] =
 		  { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 };
 		int use_ascii (int i) {
 		  return ascii_mm[i] + ascii_ii[i];
 		}
-		short int ebcdic_ii[] =
+		unsigned short int ebcdic_ii[] =
 		  { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 };
-		short int ebcdic_mm[] =
+		unsigned short int ebcdic_mm[] =
 		  { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 };
 		int use_ebcdic (int i) {
 		  return ebcdic_mm[i] + ebcdic_ii[i];
 		}
-		extern int foo;
-
-int
-main ()
-{
-return use_ascii (foo) == use_ebcdic (foo);
-  ;
-  return 0;
-}
+		int
+		main (int argc, char **argv)
+		{
+		  /* Intimidate the compiler so that it does not
+		     optimize the arrays away.  */
+		  char *p = argv[0];
+		  ascii_mm[1] = *p++; ebcdic_mm[1] = *p++;
+		  ascii_ii[1] = *p++; ebcdic_ii[1] = *p++;
+		  return use_ascii (argc) == use_ebcdic (*p);
+		}
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  if grep BIGenDianSyS conftest.$ac_objext >/dev/null; then
+if ac_fn_c_try_link "$LINENO"
+then :
+  if grep BIGenDianSyS conftest$ac_exeext >/dev/null; then
 	      ac_cv_c_bigendian=yes
 	    fi
-	    if grep LiTTleEnDian conftest.$ac_objext >/dev/null ; then
+	    if grep LiTTleEnDian conftest$ac_exeext >/dev/null ; then
 	      if test "$ac_cv_c_bigendian" = unknown; then
 		ac_cv_c_bigendian=no
 	      else
@@ -5096,13 +5749,14 @@
 	      fi
 	    fi
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 int
-main ()
+main (void)
 {
 
 	     /* Are we little or big endian?  From Harbison&Steele.  */
@@ -5118,28 +5772,32 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
+if ac_fn_c_try_run "$LINENO"
+then :
   ac_cv_c_bigendian=no
-else
-  ac_cv_c_bigendian=yes
+else case e in #(
+  e) ac_cv_c_bigendian=yes ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 
-    fi
+    fi ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_bigendian" >&5
-$as_echo "$ac_cv_c_bigendian" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_bigendian" >&5
+printf "%s\n" "$ac_cv_c_bigendian" >&6; }
  case $ac_cv_c_bigendian in #(
    yes)
-     $as_echo "#define WORDS_BIGENDIAN 1" >>confdefs.h
+     printf "%s\n" "#define WORDS_BIGENDIAN 1" >>confdefs.h
 ;; #(
    no)
       ;; #(
    universal)
 
-$as_echo "#define AC_APPLE_UNIVERSAL_BUILD 1" >>confdefs.h
+printf "%s\n" "#define AC_APPLE_UNIVERSAL_BUILD 1" >>confdefs.h
 
      ;; #(
    *)
@@ -5157,33 +5815,33 @@
 
 case $target in
     *android*)
-	$as_echo "#define PJ_ANDROID 1" >>confdefs.h
+	printf "%s\n" "#define PJ_ANDROID 1" >>confdefs.h
 
 	ac_target_arch=$TARGET_ABI
 	;;
     *mingw* | *cygw* | *win32* | *w32* )
-	$as_echo "#define PJ_WIN32 1" >>confdefs.h
+	printf "%s\n" "#define PJ_WIN32 1" >>confdefs.h
 
-	$as_echo "#define PJ_WIN32_WINNT 0x0400" >>confdefs.h
+	printf "%s\n" "#define PJ_WIN32_WINNT 0x0400" >>confdefs.h
 
-	$as_echo "#define WIN32_LEAN_AND_MEAN 1" >>confdefs.h
+	printf "%s\n" "#define WIN32_LEAN_AND_MEAN 1" >>confdefs.h
 
 	;;
     *darwin*)
-	$as_echo "#define PJ_DARWINOS 1" >>confdefs.h
+	printf "%s\n" "#define PJ_DARWINOS 1" >>confdefs.h
 
     	ac_target_arch=$ARCH_VAL
 	;;
     *linux*)
-	$as_echo "#define PJ_LINUX 1" >>confdefs.h
+	printf "%s\n" "#define PJ_LINUX 1" >>confdefs.h
 
 	;;
     *rtems*)
-	$as_echo "#define PJ_RTEMS 1" >>confdefs.h
+	printf "%s\n" "#define PJ_RTEMS 1" >>confdefs.h
 
 	;;
     *sunos* | *solaris* )
-	$as_echo "#define PJ_SUNOS 1" >>confdefs.h
+	printf "%s\n" "#define PJ_SUNOS 1" >>confdefs.h
 
 	;;
     *)
@@ -5194,111 +5852,113 @@
 
 
 # Check whether --enable-floating-point was given.
-if test "${enable_floating_point+set}" = set; then :
+if test ${enable_floating_point+y}
+then :
   enableval=$enable_floating_point; if test "$enable_floating_point" = "no"; then
-		$as_echo "#define PJ_HAS_FLOATING_POINT 0" >>confdefs.h
+		printf "%s\n" "#define PJ_HAS_FLOATING_POINT 0" >>confdefs.h
 
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if floating point is disabled... yes" >&5
-$as_echo "Checking if floating point is disabled... yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if floating point is disabled... yes" >&5
+printf "%s\n" "Checking if floating point is disabled... yes" >&6; }
 	       fi
-else
+else case e in #(
+  e)
+		printf "%s\n" "#define PJ_HAS_FLOATING_POINT 1" >>confdefs.h
 
-		$as_echo "#define PJ_HAS_FLOATING_POINT 1" >>confdefs.h
-
-	        { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if floating point is disabled... no" >&5
-$as_echo "Checking if floating point is disabled... no" >&6; }
-
+	        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if floating point is disabled... no" >&5
+printf "%s\n" "Checking if floating point is disabled... no" >&6; }
+	       ;;
+esac
 fi
 
 
 
-ac_fn_c_check_header_mongrel "$LINENO" "arpa/inet.h" "ac_cv_header_arpa_inet_h" "$ac_includes_default"
-if test "x$ac_cv_header_arpa_inet_h" = xyes; then :
-  $as_echo "#define PJ_HAS_ARPA_INET_H 1" >>confdefs.h
+ac_fn_c_check_header_compile "$LINENO" "arpa/inet.h" "ac_cv_header_arpa_inet_h" "$ac_includes_default"
+if test "x$ac_cv_header_arpa_inet_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_ARPA_INET_H 1" >>confdefs.h
 
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "assert.h" "ac_cv_header_assert_h" "$ac_includes_default"
+if test "x$ac_cv_header_assert_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_ASSERT_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "assert.h" "ac_cv_header_assert_h" "$ac_includes_default"
-if test "x$ac_cv_header_assert_h" = xyes; then :
-  $as_echo "#define PJ_HAS_ASSERT_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "ctype.h" "ac_cv_header_ctype_h" "$ac_includes_default"
+if test "x$ac_cv_header_ctype_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_CTYPE_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "ctype.h" "ac_cv_header_ctype_h" "$ac_includes_default"
-if test "x$ac_cv_header_ctype_h" = xyes; then :
-  $as_echo "#define PJ_HAS_CTYPE_H 1" >>confdefs.h
-
 fi
 
 
-
 case $target in
     *mingw* | *cygw* | *win32* | *w32* )
-	$as_echo "#define PJ_HAS_ERRNO_H 0" >>confdefs.h
+	printf "%s\n" "#define PJ_HAS_ERRNO_H 0" >>confdefs.h
 
 	;;
     *)
-	ac_fn_c_check_header_mongrel "$LINENO" "errno.h" "ac_cv_header_errno_h" "$ac_includes_default"
-if test "x$ac_cv_header_errno_h" = xyes; then :
-  $as_echo "#define PJ_HAS_ERRNO_H 1" >>confdefs.h
+	ac_fn_c_check_header_compile "$LINENO" "errno.h" "ac_cv_header_errno_h" "$ac_includes_default"
+if test "x$ac_cv_header_errno_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_ERRNO_H 1" >>confdefs.h
 
 fi
 
-
 	;;
 esac
 
-ac_fn_c_check_header_mongrel "$LINENO" "fcntl.h" "ac_cv_header_fcntl_h" "$ac_includes_default"
-if test "x$ac_cv_header_fcntl_h" = xyes; then :
-  $as_echo "#define PJ_HAS_FCNTL_H 1" >>confdefs.h
+ac_fn_c_check_header_compile "$LINENO" "fcntl.h" "ac_cv_header_fcntl_h" "$ac_includes_default"
+if test "x$ac_cv_header_fcntl_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_FCNTL_H 1" >>confdefs.h
 
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "linux/socket.h" "ac_cv_header_linux_socket_h" "$ac_includes_default"
+if test "x$ac_cv_header_linux_socket_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_LINUX_SOCKET_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "linux/socket.h" "ac_cv_header_linux_socket_h" "$ac_includes_default"
-if test "x$ac_cv_header_linux_socket_h" = xyes; then :
-  $as_echo "#define PJ_HAS_LINUX_SOCKET_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "limits.h" "ac_cv_header_limits_h" "$ac_includes_default"
+if test "x$ac_cv_header_limits_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_LIMITS_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "limits.h" "ac_cv_header_limits_h" "$ac_includes_default"
-if test "x$ac_cv_header_limits_h" = xyes; then :
-  $as_echo "#define PJ_HAS_LIMITS_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "malloc.h" "ac_cv_header_malloc_h" "$ac_includes_default"
+if test "x$ac_cv_header_malloc_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_MALLOC_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "malloc.h" "ac_cv_header_malloc_h" "$ac_includes_default"
-if test "x$ac_cv_header_malloc_h" = xyes; then :
-  $as_echo "#define PJ_HAS_MALLOC_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "netdb.h" "ac_cv_header_netdb_h" "$ac_includes_default"
+if test "x$ac_cv_header_netdb_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_NETDB_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "netdb.h" "ac_cv_header_netdb_h" "$ac_includes_default"
-if test "x$ac_cv_header_netdb_h" = xyes; then :
-  $as_echo "#define PJ_HAS_NETDB_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "netinet/in_systm.h" "ac_cv_header_netinet_in_systm_h" "$ac_includes_default"
+if test "x$ac_cv_header_netinet_in_systm_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_NETINET_IN_SYSTM_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "netinet/in_systm.h" "ac_cv_header_netinet_in_systm_h" "$ac_includes_default"
-if test "x$ac_cv_header_netinet_in_systm_h" = xyes; then :
-  $as_echo "#define PJ_HAS_NETINET_IN_SYSTM_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "netinet/in.h" "ac_cv_header_netinet_in_h" "$ac_includes_default"
+if test "x$ac_cv_header_netinet_in_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_NETINET_IN_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "netinet/in.h" "ac_cv_header_netinet_in_h" "$ac_includes_default"
-if test "x$ac_cv_header_netinet_in_h" = xyes; then :
-  $as_echo "#define PJ_HAS_NETINET_IN_H 1" >>confdefs.h
-
 fi
 
-
 ac_fn_c_check_header_compile "$LINENO" "netinet/ip.h" "ac_cv_header_netinet_ip_h" "#if PJ_HAS_SYS_TYPES_H
           	  #	include <sys/types.h>
           	  #endif
@@ -5310,177 +5970,178 @@
           	  #endif
 
 "
-if test "x$ac_cv_header_netinet_ip_h" = xyes; then :
-  $as_echo "#define PJ_HAS_NETINET_IP_H 1" >>confdefs.h
+if test "x$ac_cv_header_netinet_ip_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_NETINET_IP_H 1" >>confdefs.h
 
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "netinet/tcp.h" "ac_cv_header_netinet_tcp_h" "$ac_includes_default"
+if test "x$ac_cv_header_netinet_tcp_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_NETINET_TCP_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "netinet/tcp.h" "ac_cv_header_netinet_tcp_h" "$ac_includes_default"
-if test "x$ac_cv_header_netinet_tcp_h" = xyes; then :
-  $as_echo "#define PJ_HAS_NETINET_TCP_H 1" >>confdefs.h
-
 fi
 
-
-ac_fn_c_check_header_mongrel "$LINENO" "ifaddrs.h" "ac_cv_header_ifaddrs_h" "$ac_includes_default"
-if test "x$ac_cv_header_ifaddrs_h" = xyes; then :
+ac_fn_c_check_header_compile "$LINENO" "ifaddrs.h" "ac_cv_header_ifaddrs_h" "$ac_includes_default"
+if test "x$ac_cv_header_ifaddrs_h" = xyes
+then :
   ac_fn_c_check_func "$LINENO" "getifaddrs" "ac_cv_func_getifaddrs"
-if test "x$ac_cv_func_getifaddrs" = xyes; then :
-  $as_echo "#define PJ_HAS_IFADDRS_H 1" >>confdefs.h
+if test "x$ac_cv_func_getifaddrs" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_IFADDRS_H 1" >>confdefs.h
 
 fi
 
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "semaphore.h" "ac_cv_header_semaphore_h" "$ac_includes_default"
+if test "x$ac_cv_header_semaphore_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_SEMAPHORE_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "semaphore.h" "ac_cv_header_semaphore_h" "$ac_includes_default"
-if test "x$ac_cv_header_semaphore_h" = xyes; then :
-  $as_echo "#define PJ_HAS_SEMAPHORE_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "setjmp.h" "ac_cv_header_setjmp_h" "$ac_includes_default"
+if test "x$ac_cv_header_setjmp_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_SETJMP_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "setjmp.h" "ac_cv_header_setjmp_h" "$ac_includes_default"
-if test "x$ac_cv_header_setjmp_h" = xyes; then :
-  $as_echo "#define PJ_HAS_SETJMP_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "stdarg.h" "ac_cv_header_stdarg_h" "$ac_includes_default"
+if test "x$ac_cv_header_stdarg_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_STDARG_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "stdarg.h" "ac_cv_header_stdarg_h" "$ac_includes_default"
-if test "x$ac_cv_header_stdarg_h" = xyes; then :
-  $as_echo "#define PJ_HAS_STDARG_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "stddef.h" "ac_cv_header_stddef_h" "$ac_includes_default"
+if test "x$ac_cv_header_stddef_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_STDDEF_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "stddef.h" "ac_cv_header_stddef_h" "$ac_includes_default"
-if test "x$ac_cv_header_stddef_h" = xyes; then :
-  $as_echo "#define PJ_HAS_STDDEF_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "stdio.h" "ac_cv_header_stdio_h" "$ac_includes_default"
+if test "x$ac_cv_header_stdio_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_STDIO_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "stdio.h" "ac_cv_header_stdio_h" "$ac_includes_default"
-if test "x$ac_cv_header_stdio_h" = xyes; then :
-  $as_echo "#define PJ_HAS_STDIO_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "stdint.h" "ac_cv_header_stdint_h" "$ac_includes_default"
+if test "x$ac_cv_header_stdint_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_STDINT_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "stdint.h" "ac_cv_header_stdint_h" "$ac_includes_default"
-if test "x$ac_cv_header_stdint_h" = xyes; then :
-  $as_echo "#define PJ_HAS_STDINT_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "stdlib.h" "ac_cv_header_stdlib_h" "$ac_includes_default"
+if test "x$ac_cv_header_stdlib_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_STDLIB_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "stdlib.h" "ac_cv_header_stdlib_h" "$ac_includes_default"
-if test "x$ac_cv_header_stdlib_h" = xyes; then :
-  $as_echo "#define PJ_HAS_STDLIB_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "string.h" "ac_cv_header_string_h" "$ac_includes_default"
+if test "x$ac_cv_header_string_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_STRING_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "string.h" "ac_cv_header_string_h" "$ac_includes_default"
-if test "x$ac_cv_header_string_h" = xyes; then :
-  $as_echo "#define PJ_HAS_STRING_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "sys/ioctl.h" "ac_cv_header_sys_ioctl_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_ioctl_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_SYS_IOCTL_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "sys/ioctl.h" "ac_cv_header_sys_ioctl_h" "$ac_includes_default"
-if test "x$ac_cv_header_sys_ioctl_h" = xyes; then :
-  $as_echo "#define PJ_HAS_SYS_IOCTL_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "sys/select.h" "ac_cv_header_sys_select_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_select_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_SYS_SELECT_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "sys/select.h" "ac_cv_header_sys_select_h" "$ac_includes_default"
-if test "x$ac_cv_header_sys_select_h" = xyes; then :
-  $as_echo "#define PJ_HAS_SYS_SELECT_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "sys/socket.h" "ac_cv_header_sys_socket_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_socket_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_SYS_SOCKET_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "sys/socket.h" "ac_cv_header_sys_socket_h" "$ac_includes_default"
-if test "x$ac_cv_header_sys_socket_h" = xyes; then :
-  $as_echo "#define PJ_HAS_SYS_SOCKET_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "sys/time.h" "ac_cv_header_sys_time_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_time_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_SYS_TIME_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "sys/time.h" "ac_cv_header_sys_time_h" "$ac_includes_default"
-if test "x$ac_cv_header_sys_time_h" = xyes; then :
-  $as_echo "#define PJ_HAS_SYS_TIME_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "sys/timeb.h" "ac_cv_header_sys_timeb_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_timeb_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_SYS_TIMEB_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "sys/timeb.h" "ac_cv_header_sys_timeb_h" "$ac_includes_default"
-if test "x$ac_cv_header_sys_timeb_h" = xyes; then :
-  $as_echo "#define PJ_HAS_SYS_TIMEB_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_SYS_TYPES_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$ac_includes_default"
-if test "x$ac_cv_header_sys_types_h" = xyes; then :
-  $as_echo "#define PJ_HAS_SYS_TYPES_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "sys/filio.h" "ac_cv_header_sys_filio_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_filio_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_SYS_FILIO_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "sys/filio.h" "ac_cv_header_sys_filio_h" "$ac_includes_default"
-if test "x$ac_cv_header_sys_filio_h" = xyes; then :
-  $as_echo "#define PJ_HAS_SYS_FILIO_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "sys/sockio.h" "ac_cv_header_sys_sockio_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_sockio_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_SYS_SOCKIO_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "sys/sockio.h" "ac_cv_header_sys_sockio_h" "$ac_includes_default"
-if test "x$ac_cv_header_sys_sockio_h" = xyes; then :
-  $as_echo "#define PJ_HAS_SYS_SOCKIO_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "sys/utsname.h" "ac_cv_header_sys_utsname_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_utsname_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_SYS_UTSNAME_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "sys/utsname.h" "ac_cv_header_sys_utsname_h" "$ac_includes_default"
-if test "x$ac_cv_header_sys_utsname_h" = xyes; then :
-  $as_echo "#define PJ_HAS_SYS_UTSNAME_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "time.h" "ac_cv_header_time_h" "$ac_includes_default"
+if test "x$ac_cv_header_time_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_TIME_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "time.h" "ac_cv_header_time_h" "$ac_includes_default"
-if test "x$ac_cv_header_time_h" = xyes; then :
-  $as_echo "#define PJ_HAS_TIME_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "unistd.h" "ac_cv_header_unistd_h" "$ac_includes_default"
+if test "x$ac_cv_header_unistd_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_UNISTD_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "unistd.h" "ac_cv_header_unistd_h" "$ac_includes_default"
-if test "x$ac_cv_header_unistd_h" = xyes; then :
-  $as_echo "#define PJ_HAS_UNISTD_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "winsock.h" "ac_cv_header_winsock_h" "$ac_includes_default"
+if test "x$ac_cv_header_winsock_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_WINSOCK_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "winsock.h" "ac_cv_header_winsock_h" "$ac_includes_default"
-if test "x$ac_cv_header_winsock_h" = xyes; then :
-  $as_echo "#define PJ_HAS_WINSOCK_H 1" >>confdefs.h
-
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "winsock2.h" "ac_cv_header_winsock2_h" "$ac_includes_default"
+if test "x$ac_cv_header_winsock2_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_WINSOCK2_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "winsock2.h" "ac_cv_header_winsock2_h" "$ac_includes_default"
-if test "x$ac_cv_header_winsock2_h" = xyes; then :
-  $as_echo "#define PJ_HAS_WINSOCK2_H 1" >>confdefs.h
-
 fi
 
-
 ac_fn_c_check_header_compile "$LINENO" "mswsock.h" "ac_cv_header_mswsock_h" "#if PJ_HAS_WINSOCK2_H
           	  #	include <winsock2.h>
 		  #elif PJ_HAS_WINSOCK_H
@@ -5488,25 +6149,25 @@
           	  #endif
 
 "
-if test "x$ac_cv_header_mswsock_h" = xyes; then :
-  $as_echo "#define PJ_HAS_MSWSOCK_H 1" >>confdefs.h
+if test "x$ac_cv_header_mswsock_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_MSWSOCK_H 1" >>confdefs.h
 
 fi
 
+ac_fn_c_check_header_compile "$LINENO" "ws2tcpip.h" "ac_cv_header_ws2tcpip_h" "$ac_includes_default"
+if test "x$ac_cv_header_ws2tcpip_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_WS2TCPIP_H 1" >>confdefs.h
 
-ac_fn_c_check_header_mongrel "$LINENO" "ws2tcpip.h" "ac_cv_header_ws2tcpip_h" "$ac_includes_default"
-if test "x$ac_cv_header_ws2tcpip_h" = xyes; then :
-  $as_echo "#define PJ_HAS_WS2TCPIP_H 1" >>confdefs.h
-
 fi
 
-
-ac_fn_c_check_header_mongrel "$LINENO" "uuid/uuid.h" "ac_cv_header_uuid_uuid_h" "$ac_includes_default"
-if test "x$ac_cv_header_uuid_uuid_h" = xyes; then :
+ac_fn_c_check_header_compile "$LINENO" "uuid/uuid.h" "ac_cv_header_uuid_uuid_h" "$ac_includes_default"
+if test "x$ac_cv_header_uuid_uuid_h" = xyes
+then :
   ac_has_uuid_h=1
 fi
 
-
 ac_fn_c_check_header_compile "$LINENO" "net/if.h" "ac_cv_header_net_if_h" "#if PJ_HAS_SYS_TYPES_H
           	  #	include <sys/types.h>
           	  #endif
@@ -5516,66 +6177,65 @@
           	  #endif
 
 "
-if test "x$ac_cv_header_net_if_h" = xyes; then :
-  $as_echo "#define PJ_HAS_NET_IF_H 1" >>confdefs.h
+if test "x$ac_cv_header_net_if_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_NET_IF_H 1" >>confdefs.h
 
 fi
 
 
-
 case $target in
   *android*)
-	ac_fn_c_check_header_mongrel "$LINENO" "linux/android_alarm.h" "ac_cv_header_linux_android_alarm_h" "$ac_includes_default"
-if test "x$ac_cv_header_linux_android_alarm_h" = xyes; then :
-  $as_echo "#define PJ_HAS_ANDROID_ALARM_H 1" >>confdefs.h
+	ac_fn_c_check_header_compile "$LINENO" "linux/android_alarm.h" "ac_cv_header_linux_android_alarm_h" "$ac_includes_default"
+if test "x$ac_cv_header_linux_android_alarm_h" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_ANDROID_ALARM_H 1" >>confdefs.h
 
 fi
 
-
 	;;
 esac
 
 ac_fn_c_check_func "$LINENO" "localtime_r" "ac_cv_func_localtime_r"
-if test "x$ac_cv_func_localtime_r" = xyes; then :
-  $as_echo "#define PJ_HAS_LOCALTIME_R 1" >>confdefs.h
+if test "x$ac_cv_func_localtime_r" = xyes
+then :
+  printf "%s\n" "#define PJ_HAS_LOCALTIME_R 1" >>confdefs.h
 
 fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Setting PJ_OS_NAME to $target" >&5
-$as_echo "Setting PJ_OS_NAME to $target" >&6; }
-cat >>confdefs.h <<_ACEOF
-#define PJ_OS_NAME "$target"
-_ACEOF
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Setting PJ_OS_NAME to $target" >&5
+printf "%s\n" "Setting PJ_OS_NAME to $target" >&6; }
+printf "%s\n" "#define PJ_OS_NAME \"$target\"" >>confdefs.h
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Setting PJ_HAS_ERRNO_VAR to 1" >&5
-$as_echo "Setting PJ_HAS_ERRNO_VAR to 1" >&6; }
-$as_echo "#define PJ_HAS_ERRNO_VAR 1" >>confdefs.h
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Setting PJ_HAS_ERRNO_VAR to 1" >&5
+printf "%s\n" "Setting PJ_HAS_ERRNO_VAR to 1" >&6; }
+printf "%s\n" "#define PJ_HAS_ERRNO_VAR 1" >>confdefs.h
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Setting PJ_HAS_HIGH_RES_TIMER to 1" >&5
-$as_echo "Setting PJ_HAS_HIGH_RES_TIMER to 1" >&6; }
-$as_echo "#define PJ_HAS_HIGH_RES_TIMER 1" >>confdefs.h
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Setting PJ_HAS_HIGH_RES_TIMER to 1" >&5
+printf "%s\n" "Setting PJ_HAS_HIGH_RES_TIMER to 1" >&6; }
+printf "%s\n" "#define PJ_HAS_HIGH_RES_TIMER 1" >>confdefs.h
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Setting PJ_HAS_MALLOC to 1" >&5
-$as_echo "Setting PJ_HAS_MALLOC to 1" >&6; }
-$as_echo "#define PJ_HAS_MALLOC 1" >>confdefs.h
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Setting PJ_HAS_MALLOC to 1" >&5
+printf "%s\n" "Setting PJ_HAS_MALLOC to 1" >&6; }
+printf "%s\n" "#define PJ_HAS_MALLOC 1" >>confdefs.h
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Setting PJ_NATIVE_STRING_IS_UNICODE to 0" >&5
-$as_echo "Setting PJ_NATIVE_STRING_IS_UNICODE to 0" >&6; }
-$as_echo "#define PJ_NATIVE_STRING_IS_UNICODE 0" >>confdefs.h
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Setting PJ_NATIVE_STRING_IS_UNICODE to 0" >&5
+printf "%s\n" "Setting PJ_NATIVE_STRING_IS_UNICODE to 0" >&6; }
+printf "%s\n" "#define PJ_NATIVE_STRING_IS_UNICODE 0" >>confdefs.h
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Setting PJ_ATOMIC_VALUE_TYPE to long" >&5
-$as_echo "Setting PJ_ATOMIC_VALUE_TYPE to long" >&6; }
-$as_echo "#define PJ_ATOMIC_VALUE_TYPE long" >>confdefs.h
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Setting PJ_ATOMIC_VALUE_TYPE to long" >&5
+printf "%s\n" "Setting PJ_ATOMIC_VALUE_TYPE to long" >&6; }
+printf "%s\n" "#define PJ_ATOMIC_VALUE_TYPE long" >>confdefs.h
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if inet_aton() is available" >&5
-$as_echo_n "checking if inet_aton() is available... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if inet_aton() is available" >&5
+printf %s "checking if inet_aton() is available... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/types.h>
@@ -5582,7 +6242,7 @@
 				     #include <sys/socket.h>
 				     #include <arpa/inet.h>
 int
-main ()
+main (void)
 {
 inet_aton(0, 0);
   ;
@@ -5589,19 +6249,21 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  $as_echo "#define PJ_SOCK_HAS_INET_ATON 1" >>confdefs.h
+if ac_fn_c_try_compile "$LINENO"
+then :
+  printf "%s\n" "#define PJ_SOCK_HAS_INET_ATON 1" >>confdefs.h
 
-		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; } ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if inet_pton() is available" >&5
-$as_echo_n "checking if inet_pton() is available... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if inet_pton() is available" >&5
+printf %s "checking if inet_pton() is available... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/types.h>
@@ -5608,7 +6270,7 @@
 				     #include <sys/socket.h>
 				     #include <arpa/inet.h>
 int
-main ()
+main (void)
 {
 inet_pton(0, 0, 0);
   ;
@@ -5615,19 +6277,21 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  $as_echo "#define PJ_SOCK_HAS_INET_PTON 1" >>confdefs.h
+if ac_fn_c_try_compile "$LINENO"
+then :
+  printf "%s\n" "#define PJ_SOCK_HAS_INET_PTON 1" >>confdefs.h
 
-		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; } ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if inet_ntop() is available" >&5
-$as_echo_n "checking if inet_ntop() is available... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if inet_ntop() is available" >&5
+printf %s "checking if inet_ntop() is available... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/types.h>
@@ -5634,7 +6298,7 @@
 				     #include <sys/socket.h>
 				     #include <arpa/inet.h>
 int
-main ()
+main (void)
 {
 inet_ntop(0, 0, 0, 0);
   ;
@@ -5641,19 +6305,21 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  $as_echo "#define PJ_SOCK_HAS_INET_NTOP 1" >>confdefs.h
+if ac_fn_c_try_compile "$LINENO"
+then :
+  printf "%s\n" "#define PJ_SOCK_HAS_INET_NTOP 1" >>confdefs.h
 
-		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; } ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if getaddrinfo() is available" >&5
-$as_echo_n "checking if getaddrinfo() is available... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getaddrinfo() is available" >&5
+printf %s "checking if getaddrinfo() is available... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/types.h>
@@ -5660,7 +6326,7 @@
 				     #include <sys/socket.h>
 				     #include <netdb.h>
 int
-main ()
+main (void)
 {
 getaddrinfo(0, 0, 0, 0);
   ;
@@ -5667,19 +6333,21 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  $as_echo "#define PJ_SOCK_HAS_GETADDRINFO 1" >>confdefs.h
+if ac_fn_c_try_compile "$LINENO"
+then :
+  printf "%s\n" "#define PJ_SOCK_HAS_GETADDRINFO 1" >>confdefs.h
 
-		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; } ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if sockaddr_in has sin_len member" >&5
-$as_echo_n "checking if sockaddr_in has sin_len member... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if sockaddr_in has sin_len member" >&5
+printf %s "checking if sockaddr_in has sin_len member... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/types.h>
@@ -5687,7 +6355,7 @@
 		    		     #include <netinet/in.h>
 		    		     #include <arpa/inet.h>
 int
-main ()
+main (void)
 {
 struct sockaddr_in a; a.sin_len=0;
   ;
@@ -5694,25 +6362,27 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  $as_echo "#define PJ_SOCKADDR_HAS_LEN 1" >>confdefs.h
+if ac_fn_c_try_compile "$LINENO"
+then :
+  printf "%s\n" "#define PJ_SOCKADDR_HAS_LEN 1" >>confdefs.h
 
-		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; } ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if socklen_t is available" >&5
-$as_echo_n "checking if socklen_t is available... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if socklen_t is available" >&5
+printf %s "checking if socklen_t is available... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/types.h>
                                      #include <sys/socket.h>
 int
-main ()
+main (void)
 {
 socklen_t xxx = 0;
   ;
@@ -5719,25 +6389,27 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  $as_echo "#define PJ_HAS_SOCKLEN_T 1" >>confdefs.h
+if ac_fn_c_try_compile "$LINENO"
+then :
+  printf "%s\n" "#define PJ_HAS_SOCKLEN_T 1" >>confdefs.h
 
-		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; } ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if IPV6_V6ONLY is available" >&5
-$as_echo_n "checking if IPV6_V6ONLY is available... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if IPV6_V6ONLY is available" >&5
+printf %s "checking if IPV6_V6ONLY is available... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/socket.h>
                                      #include <netinet/in.h>
 int
-main ()
+main (void)
 {
 int opt = IPV6_V6ONLY;
   ;
@@ -5744,25 +6416,27 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  $as_echo "#define PJ_SOCK_HAS_IPV6_V6ONLY 1" >>confdefs.h
+if ac_fn_c_try_compile "$LINENO"
+then :
+  printf "%s\n" "#define PJ_SOCK_HAS_IPV6_V6ONLY 1" >>confdefs.h
 
-		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; } ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if SO_ERROR is available" >&5
-$as_echo_n "checking if SO_ERROR is available... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if SO_ERROR is available" >&5
+printf %s "checking if SO_ERROR is available... " >&6; }
 case $target in
     *mingw* | *cygw* | *win32* | *w32* )
-	$as_echo "#define PJ_HAS_SO_ERROR 1" >>confdefs.h
+	printf "%s\n" "#define PJ_HAS_SO_ERROR 1" >>confdefs.h
 
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
 	;;
     *)
 	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -5772,7 +6446,7 @@
 					     #include <netinet/in.h>
 					     #include <arpa/inet.h>
 int
-main ()
+main (void)
 {
 int i=SO_ERROR;
   ;
@@ -5779,27 +6453,29 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  $as_echo "#define PJ_HAS_SO_ERROR 1" >>confdefs.h
+if ac_fn_c_try_compile "$LINENO"
+then :
+  printf "%s\n" "#define PJ_HAS_SO_ERROR 1" >>confdefs.h
 
-			   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+			   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; } ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 	;;
 esac
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if pthread_rwlock_t is available" >&5
-$as_echo_n "checking if pthread_rwlock_t is available... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if pthread_rwlock_t is available" >&5
+printf %s "checking if pthread_rwlock_t is available... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <pthread.h>
 int
-main ()
+main (void)
 {
 pthread_rwlock_t *x;
   ;
@@ -5806,30 +6482,32 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  $as_echo "#define PJ_EMULATE_RWMUTEX 0" >>confdefs.h
+if ac_fn_c_try_compile "$LINENO"
+then :
+  printf "%s\n" "#define PJ_EMULATE_RWMUTEX 0" >>confdefs.h
 
 		   ac_rwmutex="yes"
-  		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  $as_echo "#define PJ_EMULATE_RWMUTEX 1" >>confdefs.h
+  		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else case e in #(
+  e) printf "%s\n" "#define PJ_EMULATE_RWMUTEX 1" >>confdefs.h
 
 		   ac_rwmutex="no"
-		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; } ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 
 if test "$ac_rwmutex" = "no"; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if pthread_rwlock_t is available with _POSIX_READER_WRITER_LOCKS" >&5
-$as_echo_n "checking if pthread_rwlock_t is available with _POSIX_READER_WRITER_LOCKS... " >&6; }
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if pthread_rwlock_t is available with _POSIX_READER_WRITER_LOCKS" >&5
+printf %s "checking if pthread_rwlock_t is available with _POSIX_READER_WRITER_LOCKS... " >&6; }
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #define _POSIX_READER_WRITER_LOCKS
 					 #include <pthread.h>
 int
-main ()
+main (void)
 {
 pthread_rwlock_t *x;
   ;
@@ -5836,28 +6514,30 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  $as_echo "#define PJ_EMULATE_RWMUTEX 0" >>confdefs.h
+if ac_fn_c_try_compile "$LINENO"
+then :
+  printf "%s\n" "#define PJ_EMULATE_RWMUTEX 0" >>confdefs.h
 
 		       CFLAGS="$CFLAGS -D_POSIX_THREADS -D_POSIX_READER_WRITER_LOCKS"
-		       { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  $as_echo "#define PJ_EMULATE_RWMUTEX 1" >>confdefs.h
+		       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else case e in #(
+  e) printf "%s\n" "#define PJ_EMULATE_RWMUTEX 1" >>confdefs.h
 
-		       { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; } ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if pthread_mutexattr_settype() is available" >&5
-$as_echo_n "checking if pthread_mutexattr_settype() is available... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if pthread_mutexattr_settype() is available" >&5
+printf %s "checking if pthread_mutexattr_settype() is available... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <pthread.h>
 int
-main ()
+main (void)
 {
 pthread_mutexattr_settype(0,PTHREAD_MUTEX_FAST_NP);
   ;
@@ -5864,24 +6544,26 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  $as_echo "#define PJ_HAS_PTHREAD_MUTEXATTR_SETTYPE 1" >>confdefs.h
+if ac_fn_c_try_compile "$LINENO"
+then :
+  printf "%s\n" "#define PJ_HAS_PTHREAD_MUTEXATTR_SETTYPE 1" >>confdefs.h
 
-  		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; } ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if pthread_mutexattr_t has recursive member" >&5
-$as_echo_n "checking if pthread_mutexattr_t has recursive member... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if pthread_mutexattr_t has recursive member" >&5
+printf %s "checking if pthread_mutexattr_t has recursive member... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <pthread.h>
 int
-main ()
+main (void)
 {
 pthread_mutexattr_t attr;
 				     attr.recursive=1;
@@ -5889,54 +6571,60 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  $as_echo "#define PJ_PTHREAD_MUTEXATTR_T_HAS_RECURSIVE 1" >>confdefs.h
+if ac_fn_c_try_compile "$LINENO"
+then :
+  printf "%s\n" "#define PJ_PTHREAD_MUTEXATTR_T_HAS_RECURSIVE 1" >>confdefs.h
 
-  		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; } ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking ioqueue backend" >&5
-$as_echo_n "checking ioqueue backend... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking ioqueue backend" >&5
+printf %s "checking ioqueue backend... " >&6; }
 # Check whether --enable-epoll was given.
-if test "${enable_epoll+set}" = set; then :
+if test ${enable_epoll+y}
+then :
   enableval=$enable_epoll;
 		ac_os_objs=ioqueue_epoll.o
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: /dev/epoll" >&5
-$as_echo "/dev/epoll" >&6; }
-		$as_echo "#define PJ_HAS_LINUX_EPOLL 1" >>confdefs.h
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: /dev/epoll" >&5
+printf "%s\n" "/dev/epoll" >&6; }
+		printf "%s\n" "#define PJ_HAS_LINUX_EPOLL 1" >>confdefs.h
 
 		ac_linux_poll=epoll
 
-else
-
+else case e in #(
+  e)
 		ac_os_objs=ioqueue_select.o
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: select()" >&5
-$as_echo "select()" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: select()" >&5
+printf "%s\n" "select()" >&6; }
 		ac_linux_poll=select
-
+	       ;;
+esac
 fi
 
 
 
 # Check whether --enable-shared was given.
-if test "${enable_shared+set}" = set; then :
+if test ${enable_shared+y}
+then :
   enableval=$enable_shared; if test "$enable_shared" = "yes"; then
 		ac_shared_libraries=1
 		CFLAGS="$CFLAGS -fPIC"
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Building shared libraries... yes" >&5
-$as_echo "Building shared libraries... yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Building shared libraries... yes" >&5
+printf "%s\n" "Building shared libraries... yes" >&6; }
 	       fi
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Building shared libraries... no" >&5
-$as_echo "Building shared libraries... no" >&6; }
-
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Building shared libraries... no" >&5
+printf "%s\n" "Building shared libraries... no" >&6; }
+	       ;;
+esac
 fi
 
 
@@ -5985,12 +6673,13 @@
 
 
 # Check whether --with-external-speex was given.
-if test "${with_external_speex+set}" = set; then :
+if test ${with_external_speex+y}
+then :
   withval=$with_external_speex;
 	if test "x$with_external_speex" != "xno"; then
 		# Test Speex installation
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if external Speex devkit is installed" >&5
-$as_echo_n "checking if external Speex devkit is installed... " >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if external Speex devkit is installed" >&5
+printf %s "checking if external Speex devkit is installed... " >&6; }
 		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <speex/speex.h>
@@ -5997,7 +6686,7 @@
 						     #include <speex/speex_echo.h>
 
 int
-main ()
+main (void)
 {
 speex_echo_state_init(0, 0); speex_encoder_init(0);
   ;
@@ -6004,17 +6693,19 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes!!" >&5
-$as_echo "yes!!" >&6; }
-				   $as_echo "#define PJMEDIA_EXTERNAL_SPEEX_CODEC 1" >>confdefs.h
+if ac_fn_c_try_compile "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes!!" >&5
+printf "%s\n" "yes!!" >&6; }
+				   printf "%s\n" "#define PJMEDIA_EXTERNAL_SPEEX_CODEC 1" >>confdefs.h
 
 				   ac_external_speex="1"
 
-else
-  as_fn_error $? "Unable to use external Speex library. If Speex development files are not available in the default locations, use CFLAGS and LDFLAGS env var to set the include/lib paths" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "Unable to use external Speex library. If Speex development files are not available in the default locations, use CFLAGS and LDFLAGS env var to set the include/lib paths" "$LINENO" 5 ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 	fi
 
 
@@ -6025,17 +6716,18 @@
 
 
 # Check whether --with-external-gsm was given.
-if test "${with_external_gsm+set}" = set; then :
+if test ${with_external_gsm+y}
+then :
   withval=$with_external_gsm;
 	if test "x$with_external_gsm" != "xno"; then
                 # Test GSM library installation
-                { $as_echo "$as_me:${as_lineno-$LINENO}: checking if external GSM devkit is installed as gsm/gsm.h" >&5
-$as_echo_n "checking if external GSM devkit is installed as gsm/gsm.h... " >&6; }
+                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if external GSM devkit is installed as gsm/gsm.h" >&5
+printf %s "checking if external GSM devkit is installed as gsm/gsm.h... " >&6; }
                 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <gsm/gsm.h>
 int
-main ()
+main (void)
 {
 gsm_create();
   ;
@@ -6042,26 +6734,27 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes!!" >&5
-$as_echo "yes!!" >&6; }
-                     $as_echo "#define PJMEDIA_EXTERNAL_GSM_CODEC 1" >>confdefs.h
+if ac_fn_c_try_compile "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes!!" >&5
+printf "%s\n" "yes!!" >&6; }
+                     printf "%s\n" "#define PJMEDIA_EXTERNAL_GSM_CODEC 1" >>confdefs.h
 
-                     $as_echo "#define PJMEDIA_EXTERNAL_GSM_GSM_H 1" >>confdefs.h
+                     printf "%s\n" "#define PJMEDIA_EXTERNAL_GSM_GSM_H 1" >>confdefs.h
 
                      ac_external_gsm="1"
 
-else
-
-                     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-                     { $as_echo "$as_me:${as_lineno-$LINENO}: checking if external GSM devkit is installed as gsm.h" >&5
-$as_echo_n "checking if external GSM devkit is installed as gsm.h... " >&6; }
+else case e in #(
+  e)
+                     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+                     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if external GSM devkit is installed as gsm.h" >&5
+printf %s "checking if external GSM devkit is installed as gsm.h... " >&6; }
                      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <gsm.h>
 int
-main ()
+main (void)
 {
 gsm_create();
   ;
@@ -6068,25 +6761,28 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes!!" >&5
-$as_echo "yes!!" >&6; }
-                         $as_echo "#define PJMEDIA_EXTERNAL_GSM_CODEC 1" >>confdefs.h
+if ac_fn_c_try_compile "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes!!" >&5
+printf "%s\n" "yes!!" >&6; }
+                         printf "%s\n" "#define PJMEDIA_EXTERNAL_GSM_CODEC 1" >>confdefs.h
 
-                         $as_echo "#define PJMEDIA_EXTERNAL_GSM_H 1" >>confdefs.h
+                         printf "%s\n" "#define PJMEDIA_EXTERNAL_GSM_H 1" >>confdefs.h
 
                          ac_external_gsm="1"
 
-else
-  as_fn_error $? "Unable to use external GSM library. If GSM development files are not available in the default locations, use CFLAGS and LDFLAGS env var to set the include/lib paths" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "Unable to use external GSM library. If GSM development files are not available in the default locations, use CFLAGS and LDFLAGS env var to set the include/lib paths" "$LINENO" 5
 
-
+                      ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 
-
+                 ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 	fi
 
 
@@ -6099,18 +6795,19 @@
 
 
 # Check whether --with-external-srtp was given.
-if test "${with_external_srtp+set}" = set; then :
+if test ${with_external_srtp+y}
+then :
   withval=$with_external_srtp;
 	if test "x$with_external_srtp" != "xno"; then
 		# Test SRTP installation
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if external SRTP devkit is installed" >&5
-$as_echo_n "checking if external SRTP devkit is installed... " >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if external SRTP devkit is installed" >&5
+printf %s "checking if external SRTP devkit is installed... " >&6; }
 		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <srtp2/srtp.h>
 
 int
-main ()
+main (void)
 {
 srtp_init();
   ;
@@ -6117,19 +6814,20 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes: version 2.x" >&5
-$as_echo "yes: version 2.x" >&6; }
+if ac_fn_c_try_compile "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes: version 2.x" >&5
+printf "%s\n" "yes: version 2.x" >&6; }
 				   ac_external_srtp="2"
 				   ac_external_srtp_lib="srtp2"
 
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <srtp/srtp.h>
 
 int
-main ()
+main (void)
 {
 srtp_init();
   ;
@@ -6136,18 +6834,21 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes: version 1.x" >&5
-$as_echo "yes: version 1.x" >&6; }
+if ac_fn_c_try_compile "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes: version 1.x" >&5
+printf "%s\n" "yes: version 1.x" >&6; }
 				   ac_external_srtp="1"
 				   ac_external_srtp_lib="srtp"
 
-else
-  as_fn_error $? "Unable to use SRTP. If SRTP development files are not available in the default locations, use CFLAGS and LDFLAGS env var to set the include/lib paths" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "Unable to use SRTP. If SRTP development files are not available in the default locations, use CFLAGS and LDFLAGS env var to set the include/lib paths" "$LINENO" 5 ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 	fi
 
 
@@ -6159,13 +6860,14 @@
 
 	ac_srtp_shutdown_present=0
 
-	as_ac_Lib=`$as_echo "ac_cv_lib_$ac_external_srtp_lib''_srtp_deinit" | $as_tr_sh`
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for srtp_deinit in -l$ac_external_srtp_lib" >&5
-$as_echo_n "checking for srtp_deinit in -l$ac_external_srtp_lib... " >&6; }
-if eval \${$as_ac_Lib+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+	as_ac_Lib=`printf "%s\n" "ac_cv_lib_$ac_external_srtp_lib""_srtp_deinit" | sed "$as_sed_sh"`
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for srtp_deinit in -l$ac_external_srtp_lib" >&5
+printf %s "checking for srtp_deinit in -l$ac_external_srtp_lib... " >&6; }
+if eval test \${$as_ac_Lib+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-l$ac_external_srtp_lib  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -6172,13 +6874,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char srtp_deinit ();
+char srtp_deinit (void);
 int
-main ()
+main (void)
 {
 return srtp_deinit ();
   ;
@@ -6185,30 +6890,35 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   eval "$as_ac_Lib=yes"
-else
-  eval "$as_ac_Lib=no"
+else case e in #(
+  e) eval "$as_ac_Lib=no" ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 eval ac_res=\$$as_ac_Lib
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-if eval test \"x\$"$as_ac_Lib"\" = x"yes"; then :
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
+if eval test \"x\$"$as_ac_Lib"\" = x"yes"
+then :
   ac_srtp_deinit_present=1
 fi
 
 	if test "x$ac_srtp_deinit_present" != "x1"; then
-		as_ac_Lib=`$as_echo "ac_cv_lib_$ac_external_srtp_lib''_srtp_shutdown" | $as_tr_sh`
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for srtp_shutdown in -l$ac_external_srtp_lib" >&5
-$as_echo_n "checking for srtp_shutdown in -l$ac_external_srtp_lib... " >&6; }
-if eval \${$as_ac_Lib+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+		as_ac_Lib=`printf "%s\n" "ac_cv_lib_$ac_external_srtp_lib""_srtp_shutdown" | sed "$as_sed_sh"`
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for srtp_shutdown in -l$ac_external_srtp_lib" >&5
+printf %s "checking for srtp_shutdown in -l$ac_external_srtp_lib... " >&6; }
+if eval test \${$as_ac_Lib+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-l$ac_external_srtp_lib  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -6215,13 +6925,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char srtp_shutdown ();
+char srtp_shutdown (void);
 int
-main ()
+main (void)
 {
 return srtp_shutdown ();
   ;
@@ -6228,19 +6941,23 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   eval "$as_ac_Lib=yes"
-else
-  eval "$as_ac_Lib=no"
+else case e in #(
+  e) eval "$as_ac_Lib=no" ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 eval ac_res=\$$as_ac_Lib
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-if eval test \"x\$"$as_ac_Lib"\" = x"yes"; then :
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
+if eval test \"x\$"$as_ac_Lib"\" = x"yes"
+then :
   ac_srtp_shutdown_present=1
 fi
 
@@ -6252,17 +6969,18 @@
 
 
 # Check whether --with-external-yuv was given.
-if test "${with_external_yuv+set}" = set; then :
+if test ${with_external_yuv+y}
+then :
   withval=$with_external_yuv;
 	if test "x$with_external_yuv" != "xno"; then
 		# Test libyuv installation
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if external libyuv devkit is installed" >&5
-$as_echo_n "checking if external libyuv devkit is installed... " >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if external libyuv devkit is installed" >&5
+printf %s "checking if external libyuv devkit is installed... " >&6; }
 		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <libyuv.h>
 int
-main ()
+main (void)
 {
 RGB24ToI420(0,0,0,0,0,0,0,0,0,0);
   ;
@@ -6269,15 +6987,17 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes!!" >&5
-$as_echo "yes!!" >&6; }
+if ac_fn_c_try_compile "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes!!" >&5
+printf "%s\n" "yes!!" >&6; }
 				   ac_external_yuv="1"
 
-else
-  as_fn_error $? "Unable to use external libyuv. If libyuv development files are not available in the default locations, use CFLAGS and LDFLAGS env var to set the include/lib paths" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "Unable to use external libyuv. If libyuv development files are not available in the default locations, use CFLAGS and LDFLAGS env var to set the include/lib paths" "$LINENO" 5 ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 	fi
 
 
@@ -6289,12 +7009,13 @@
 
 
 # Check whether --with-external-webrtc was given.
-if test "${with_external_webrtc+set}" = set; then :
+if test ${with_external_webrtc+y}
+then :
   withval=$with_external_webrtc;
 	if test "x$with_external_webrtc" != "xno"; then
 		# Test webrtc installation
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if external webrtc devkit is installed" >&5
-$as_echo_n "checking if external webrtc devkit is installed... " >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if external webrtc devkit is installed" >&5
+printf %s "checking if external webrtc devkit is installed... " >&6; }
 		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <webrtc/modules/audio_processing/aec/aec_core.h>
@@ -6301,7 +7022,7 @@
 						     #include <webrtc/modules/audio_processing/aec/include/echo_cancellation.h>
 
 int
-main ()
+main (void)
 {
 WebRtcAec_Create();
   ;
@@ -6308,15 +7029,17 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes!!" >&5
-$as_echo "yes!!" >&6; }
+if ac_fn_c_try_compile "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes!!" >&5
+printf "%s\n" "yes!!" >&6; }
 				   ac_external_webrtc="1"
 
-else
-  as_fn_error $? "Unable to use external webrtc. If webrtc development files are not available in the default locations, use CFLAGS and LDFLAGS env var to set the include/lib paths" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "Unable to use external webrtc. If webrtc development files are not available in the default locations, use CFLAGS and LDFLAGS env var to set the include/lib paths" "$LINENO" 5 ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 	fi
 
 
@@ -6327,11 +7050,12 @@
 ac_pjmedia_resample=libresample
 
 # Check whether --enable-resample was given.
-if test "${enable_resample+set}" = set; then :
+if test ${enable_resample+y}
+then :
   enableval=$enable_resample; if test "$enable_resample" = "no"; then
 		ac_pjmedia_resample=none
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if resampling is disabled...yes" >&5
-$as_echo "Checking if resampling is disabled...yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if resampling is disabled...yes" >&5
+printf "%s\n" "Checking if resampling is disabled...yes" >&6; }
 	       fi
 
 fi
@@ -6339,11 +7063,12 @@
 
 
 # Check whether --enable-sound was given.
-if test "${enable_sound+set}" = set; then :
+if test ${enable_sound+y}
+then :
   enableval=$enable_sound; if test "$enable_sound" = "no"; then
 		ac_pjmedia_snd=null
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if sound is disabled... yes" >&5
-$as_echo "Checking if sound is disabled... yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if sound is disabled... yes" >&5
+printf "%s\n" "Checking if sound is disabled... yes" >&6; }
 	       fi
 
 fi
@@ -6353,18 +7078,19 @@
 
 
 # Check whether --with-external-pa was given.
-if test "${with_external_pa+set}" = set; then :
+if test ${with_external_pa+y}
+then :
   withval=$with_external_pa;
 	if test "x$with_external_pa" != "xno"; then
 		# Test PortAudio installation
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if external PortAudio devkit is installed" >&5
-$as_echo_n "checking if external PortAudio devkit is installed... " >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if external PortAudio devkit is installed" >&5
+printf %s "checking if external PortAudio devkit is installed... " >&6; }
 		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <portaudio.h>
 
 int
-main ()
+main (void)
 {
 Pa_Initialize();
   ;
@@ -6371,15 +7097,17 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes!!" >&5
-$as_echo "yes!!" >&6; }
+if ac_fn_c_try_compile "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes!!" >&5
+printf "%s\n" "yes!!" >&6; }
 				   ac_external_pa="1"
 
-else
-  as_fn_error $? "Unable to use PortAudio. If PortAudio development files are not available in the default locations, use CFLAGS and LDFLAGS env var to set the include/lib paths" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "Unable to use PortAudio. If PortAudio development files are not available in the default locations, use CFLAGS and LDFLAGS env var to set the include/lib paths" "$LINENO" 5 ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 	fi
 
 
@@ -6387,25 +7115,25 @@
 
 
 
-ac_fn_c_check_header_mongrel "$LINENO" "sys/soundcard.h" "ac_cv_header_sys_soundcard_h" "$ac_includes_default"
-if test "x$ac_cv_header_sys_soundcard_h" = xyes; then :
+ac_fn_c_check_header_compile "$LINENO" "sys/soundcard.h" "ac_cv_header_sys_soundcard_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_soundcard_h" = xyes
+then :
   ac_pa_cflags="$ac_pa_cflags -DHAVE_SYS_SOUNDCARD_H"
 fi
 
-
-ac_fn_c_check_header_mongrel "$LINENO" "linux/soundcard.h" "ac_cv_header_linux_soundcard_h" "$ac_includes_default"
-if test "x$ac_cv_header_linux_soundcard_h" = xyes; then :
+ac_fn_c_check_header_compile "$LINENO" "linux/soundcard.h" "ac_cv_header_linux_soundcard_h" "$ac_includes_default"
+if test "x$ac_cv_header_linux_soundcard_h" = xyes
+then :
   ac_pa_cflags="$ac_pa_cflags -DHAVE_LINUX_SOUNDCARD_H"
 fi
 
-
-ac_fn_c_check_header_mongrel "$LINENO" "machine/soundcard.h" "ac_cv_header_machine_soundcard_h" "$ac_includes_default"
-if test "x$ac_cv_header_machine_soundcard_h" = xyes; then :
+ac_fn_c_check_header_compile "$LINENO" "machine/soundcard.h" "ac_cv_header_machine_soundcard_h" "$ac_includes_default"
+if test "x$ac_cv_header_machine_soundcard_h" = xyes
+then :
   ac_pa_cflags="$ac_pa_cflags -DHAVE_MACHINE_SOUNDCARD_H"
 fi
 
 
-
 if test "x$ac_cv_c_bigendian" = "xyes"; then
   ac_pa_cflags="$ac_pa_cflags -DPA_BIG_ENDIAN"
 else
@@ -6419,14 +7147,14 @@
  case $target in
   *android*)
 	LIBS="$LIBS -lOpenSLES"
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking sound device backend... OpenSL ES" >&5
-$as_echo "Checking sound device backend... OpenSL ES" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking sound device backend... OpenSL ES" >&5
+printf "%s\n" "Checking sound device backend... OpenSL ES" >&6; }
 	;;
   *-apple-darwin_ios*)
 	LIBS="$LIBS -framework CoreAudio -framework CoreFoundation -framework AudioToolbox -framework CFNetwork -framework UIKit -framework AVFoundation"
 	ac_pjmedia_audiodev_objs="coreaudio_dev.o"
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking sound device backend... AudioUnit" >&5
-$as_echo "Checking sound device backend... AudioUnit" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking sound device backend... AudioUnit" >&5
+printf "%s\n" "Checking sound device backend... AudioUnit" >&6; }
 	;;
   *darwin*)
 	LIBS="$LIBS -framework CoreAudio -framework CoreServices -framework AudioUnit -framework AudioToolbox"
@@ -6435,40 +7163,40 @@
 		#ac_pa_cflags="$ac_pa_cflags -DPA_OLD_CORE_AUDIO -DMOSX_USE_NON_ATOMIC_FLAG_BITS"
 		#AC_MSG_RESULT([Setting additional PortAudio CFLAGS.. -DPA_OLD_CORE_AUDIO -DMOSX_USE_NON_ATOMIC_FLAG_BITS])
 		#ac_pjmedia_snd=pa_old_darwinos
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking sound device backend... old coreaudio" >&5
-$as_echo "Checking sound device backend... old coreaudio" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking sound device backend... old coreaudio" >&5
+printf "%s\n" "Checking sound device backend... old coreaudio" >&6; }
 	else
 		ac_pjmedia_snd=coreaudio
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking sound device backend... coreaudio" >&5
-$as_echo "Checking sound device backend... coreaudio" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking sound device backend... coreaudio" >&5
+printf "%s\n" "Checking sound device backend... coreaudio" >&6; }
 	fi
 	;;
   *cygwin* | *mingw*)
 	ac_pjmedia_snd=win32
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking sound device backend... win32 sound" >&5
-$as_echo "Checking sound device backend... win32 sound" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking sound device backend... win32 sound" >&5
+printf "%s\n" "Checking sound device backend... win32 sound" >&6; }
 	;;
   *rtems*)
 	ac_pjmedia_snd=null
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking sound device backend... null sound" >&5
-$as_echo "Checking sound device backend... null sound" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking sound device backend... null sound" >&5
+printf "%s\n" "Checking sound device backend... null sound" >&6; }
 	;;
   *)
 	if test "x$ac_external_pa" != "x1"; then
-				ac_fn_c_check_header_mongrel "$LINENO" "alsa/version.h" "ac_cv_header_alsa_version_h" "$ac_includes_default"
-if test "x$ac_cv_header_alsa_version_h" = xyes; then :
+				ac_fn_c_check_header_compile "$LINENO" "alsa/version.h" "ac_cv_header_alsa_version_h" "$ac_includes_default"
+if test "x$ac_cv_header_alsa_version_h" = xyes
+then :
   LIBS="$LIBS -lasound"
 				 ac_pjmedia_snd=alsa
 fi
 
-
 		if test "x$ac_pjmedia_snd" = "xalsa"; then
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking sound device backend... alsa" >&5
-$as_echo "Checking sound device backend... alsa" >&6; }
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking sound device backend... alsa" >&5
+printf "%s\n" "Checking sound device backend... alsa" >&6; }
 		else
 			ac_pjmedia_snd=null
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking sound device backend... null sound" >&5
-$as_echo "Checking sound device backend... null sound" >&6; }
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking sound device backend... null sound" >&5
+printf "%s\n" "Checking sound device backend... null sound" >&6; }
 		fi
 	fi
 	;;
@@ -6485,11 +7213,12 @@
 esac
 
 # Check whether --enable-video was given.
-if test "${enable_video+set}" = set; then :
+if test ${enable_video+y}
+then :
   enableval=$enable_video; if test "$enable_video" = "no"; then
 	        #AC_DEFINE(PJMEDIA_HAS_VIDEO,0)
-                { $as_echo "$as_me:${as_lineno-$LINENO}: result: Video is disabled" >&5
-$as_echo "Video is disabled" >&6; }
+                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Video is disabled" >&5
+printf "%s\n" "Video is disabled" >&6; }
                 enable_sdl="no"
                 enable_ffmpeg="no"
                 enable_v4l2="no"
@@ -6525,7 +7254,7 @@
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -6532,22 +7261,24 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_pjmedia_video_has_android=yes
-else
-  ac_pjmedia_video_has_android=no
+else case e in #(
+  e) ac_pjmedia_video_has_android=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 	LIBS="$SAVED_LIBS"
 	if test "$ac_pjmedia_video_has_android" = "yes"; then
 	  ac_android_cflags="-DPJMEDIA_VIDEO_DEV_HAS_ANDROID_OPENGL=1"
 	  LIBS="$LIBS -lGLESv2 -lEGL -landroid"
-	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if OpenGL ES 2 is available... yes" >&5
-$as_echo "Checking if OpenGL ES 2 is available... yes" >&6; }
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if OpenGL ES 2 is available... yes" >&5
+printf "%s\n" "Checking if OpenGL ES 2 is available... yes" >&6; }
 	else
-	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if OpenGL ES 2 is available... no" >&5
-$as_echo "Checking if OpenGL ES 2 is available... no" >&6; }
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if OpenGL ES 2 is available... no" >&5
+printf "%s\n" "Checking if OpenGL ES 2 is available... no" >&6; }
 	fi
 	ac_android_cflags="$ac_android_cflags -DPJMEDIA_VIDEO_DEV_HAS_ANDROID=1"
 	;;
@@ -6563,7 +7294,7 @@
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -6570,12 +7301,14 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_pjmedia_video_has_darwin=yes
-else
-  ac_pjmedia_video_has_darwin=no
+else case e in #(
+  e) ac_pjmedia_video_has_darwin=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 	LIBS="-framework VideoToolbox"
 	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6582,7 +7315,7 @@
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -6589,12 +7322,14 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_pjmedia_video_has_vtoolbox=yes
-else
-  ac_pjmedia_video_has_vtoolbox=no
+else case e in #(
+  e) ac_pjmedia_video_has_vtoolbox=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 	LIBS="-framework OpenGLES"
 	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6601,7 +7336,7 @@
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -6608,40 +7343,42 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_pjmedia_video_has_ios_opengl=yes
-else
-  ac_pjmedia_video_has_ios_opengl=no
+else case e in #(
+  e) ac_pjmedia_video_has_ios_opengl=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 	LIBS="$SAVED_LIBS"
 	if test "$ac_pjmedia_video_has_darwin" = "yes"; then
 	  ac_darwin_cflags="-DPJMEDIA_VIDEO_DEV_HAS_DARWIN=1"
 	  LIBS="$LIBS -framework AVFoundation -framework CoreGraphics -framework QuartzCore -framework CoreVideo -framework CoreMedia"
-	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if AVFoundation framework is available... yes" >&5
-$as_echo "Checking if AVFoundation framework is available... yes" >&6; }
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if AVFoundation framework is available... yes" >&5
+printf "%s\n" "Checking if AVFoundation framework is available... yes" >&6; }
 	else
-	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if AVFoundation framework is available... no" >&5
-$as_echo "Checking if AVFoundation framework is available... no" >&6; }
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if AVFoundation framework is available... no" >&5
+printf "%s\n" "Checking if AVFoundation framework is available... no" >&6; }
 	fi
 	if test "$ac_pjmedia_video_has_vtoolbox" = "yes"; then
 	  #ac_darwin_cflags+=" -DPJMEDIA_HAS_VID_TOOLBOX_CODEC=1"
 	  LIBS="$LIBS -framework VideoToolbox"
-	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if VideoToolbox framework is available... yes" >&5
-$as_echo "Checking if VideoToolbox framework is available... yes" >&6; }
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if VideoToolbox framework is available... yes" >&5
+printf "%s\n" "Checking if VideoToolbox framework is available... yes" >&6; }
 	else
-	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if VideoToolbox framework is available... no" >&5
-$as_echo "Checking if VideoToolbox framework is available... no" >&6; }
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if VideoToolbox framework is available... no" >&5
+printf "%s\n" "Checking if VideoToolbox framework is available... no" >&6; }
 	fi
 	if test "$ac_pjmedia_video_has_ios_opengl" = "yes"; then
 	  ac_darwin_cflags+=" -DPJMEDIA_VIDEO_DEV_HAS_IOS_OPENGL=1"
 	  LIBS="$LIBS -framework OpenGLES"
-	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if OpenGLES framework is available... yes" >&5
-$as_echo "Checking if OpenGLES framework is available... yes" >&6; }
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if OpenGLES framework is available... yes" >&5
+printf "%s\n" "Checking if OpenGLES framework is available... yes" >&6; }
 	else
-	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if OpenGLES framework is available... no" >&5
-$as_echo "Checking if OpenGLES framework is available... no" >&6; }
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if OpenGLES framework is available... no" >&5
+printf "%s\n" "Checking if OpenGLES framework is available... no" >&6; }
 	fi
         if false; then
           # QTKit is deprecated, see ticket #1931.
@@ -6654,7 +7391,7 @@
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -6661,22 +7398,24 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_pjmedia_video_has_qt=yes
-else
-  ac_pjmedia_video_has_qt=no
+else case e in #(
+  e) ac_pjmedia_video_has_qt=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 	  LIBS="$SAVED_LIBS"
 	  if test "$ac_pjmedia_video_has_qt" = "yes"; then
 	    ac_qt_cflags="-DPJMEDIA_VIDEO_DEV_HAS_QT=1"
 	    LIBS="$LIBS -framework QTKit -framework QuartzCore -framework OpenGL"
-	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if QTKit framework is available... yes" >&5
-$as_echo "Checking if QTKit framework is available... yes" >&6; }
+	    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if QTKit framework is available... yes" >&5
+printf "%s\n" "Checking if QTKit framework is available... yes" >&6; }
 	  else
-	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if QTKit framework is available... no" >&5
-$as_echo "Checking if QTKit framework is available... no" >&6; }
+	    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if QTKit framework is available... no" >&5
+printf "%s\n" "Checking if QTKit framework is available... no" >&6; }
  	  fi
  	fi
  	;;
@@ -6684,11 +7423,12 @@
 fi
 
 # Check whether --enable-ext_sound was given.
-if test "${enable_ext_sound+set}" = set; then :
+if test ${enable_ext_sound+y}
+then :
   enableval=$enable_ext_sound; if test "$enable_ext_sound" = "yes"; then
 		ac_pjmedia_snd=external
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if external sound is set... yes" >&5
-$as_echo "Checking if external sound is set... yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if external sound is set... yes" >&5
+printf "%s\n" "Checking if external sound is set... yes" >&6; }
 	       fi
 
 fi
@@ -6696,59 +7436,67 @@
 
 
 # Check whether --enable-small-filter was given.
-if test "${enable_small_filter+set}" = set; then :
+if test ${enable_small_filter+y}
+then :
   enableval=$enable_small_filter; if test "$enable_small_filter" = "no"; then
 		ac_no_small_filter='-DPJMEDIA_HAS_SMALL_FILTER=0'
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if small filter is disabled... yes" >&5
-$as_echo "Checking if small filter is disabled... yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if small filter is disabled... yes" >&5
+printf "%s\n" "Checking if small filter is disabled... yes" >&6; }
 	       fi
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if small filter is disabled... no" >&5
-$as_echo "Checking if small filter is disabled... no" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if small filter is disabled... no" >&5
+printf "%s\n" "Checking if small filter is disabled... no" >&6; } ;;
+esac
 fi
 
 
 
 # Check whether --enable-large-filter was given.
-if test "${enable_large_filter+set}" = set; then :
+if test ${enable_large_filter+y}
+then :
   enableval=$enable_large_filter; if test "$enable_large_filter" = "no"; then
 		ac_no_large_filter='-DPJMEDIA_HAS_LARGE_FILTER=0'
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if large filter is disabled... yes" >&5
-$as_echo "Checking if large filter is disabled... yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if large filter is disabled... yes" >&5
+printf "%s\n" "Checking if large filter is disabled... yes" >&6; }
 	       fi
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if large filter is disabled... no" >&5
-$as_echo "Checking if large filter is disabled... no" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if large filter is disabled... no" >&5
+printf "%s\n" "Checking if large filter is disabled... no" >&6; } ;;
+esac
 fi
 
 
 
 # Check whether --enable-speex-aec was given.
-if test "${enable_speex_aec+set}" = set; then :
+if test ${enable_speex_aec+y}
+then :
   enableval=$enable_speex_aec; if test "$enable_speex_aec" = "no"; then
 		ac_no_speex_aec='-DPJMEDIA_HAS_SPEEX_AEC=0'
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if Speex AEC is disabled...yes" >&5
-$as_echo "Checking if Speex AEC is disabled...yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if Speex AEC is disabled...yes" >&5
+printf "%s\n" "Checking if Speex AEC is disabled...yes" >&6; }
 	       fi
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if Speex AEC is disabled...no" >&5
-$as_echo "Checking if Speex AEC is disabled...no" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if Speex AEC is disabled...no" >&5
+printf "%s\n" "Checking if Speex AEC is disabled...no" >&6; } ;;
+esac
 fi
 
 
 
 # Check whether --enable-g711-codec was given.
-if test "${enable_g711_codec+set}" = set; then :
+if test ${enable_g711_codec+y}
+then :
   enableval=$enable_g711_codec; if test "$enable_g711_codec" = "no"; then
 		ac_no_g711_codec=1
-		$as_echo "#define PJMEDIA_HAS_G711_CODEC 0" >>confdefs.h
+		printf "%s\n" "#define PJMEDIA_HAS_G711_CODEC 0" >>confdefs.h
 
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if G.711 codec is disabled...yes" >&5
-$as_echo "Checking if G.711 codec is disabled...yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if G.711 codec is disabled...yes" >&5
+printf "%s\n" "Checking if G.711 codec is disabled...yes" >&6; }
 	       fi
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if G.711 codec is disabled...no" >&5
-$as_echo "Checking if G.711 codec is disabled...no" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if G.711 codec is disabled...no" >&5
+printf "%s\n" "Checking if G.711 codec is disabled...no" >&6; } ;;
+esac
 fi
 
 
@@ -6755,17 +7503,19 @@
 
 
 # Check whether --enable-l16-codec was given.
-if test "${enable_l16_codec+set}" = set; then :
+if test ${enable_l16_codec+y}
+then :
   enableval=$enable_l16_codec; if test "$enable_l16_codec" = "no"; then
 		ac_no_l16_codec=1
-		$as_echo "#define PJMEDIA_HAS_L16_CODEC 0" >>confdefs.h
+		printf "%s\n" "#define PJMEDIA_HAS_L16_CODEC 0" >>confdefs.h
 
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if L16 codecs are disabled...yes" >&5
-$as_echo "Checking if L16 codecs are disabled...yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if L16 codecs are disabled...yes" >&5
+printf "%s\n" "Checking if L16 codecs are disabled...yes" >&6; }
 	       fi
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if L16 codec is disabled...no" >&5
-$as_echo "Checking if L16 codec is disabled...no" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if L16 codec is disabled...no" >&5
+printf "%s\n" "Checking if L16 codec is disabled...no" >&6; } ;;
+esac
 fi
 
 
@@ -6772,96 +7522,108 @@
 
 
 # Check whether --enable-gsm-codec was given.
-if test "${enable_gsm_codec+set}" = set; then :
+if test ${enable_gsm_codec+y}
+then :
   enableval=$enable_gsm_codec; if test "$enable_gsm_codec" = "no"; then
 		ac_no_gsm_codec=1
-		$as_echo "#define PJMEDIA_HAS_GSM_CODEC 0" >>confdefs.h
+		printf "%s\n" "#define PJMEDIA_HAS_GSM_CODEC 0" >>confdefs.h
 
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if GSM codec is disabled...yes" >&5
-$as_echo "Checking if GSM codec is disabled...yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if GSM codec is disabled...yes" >&5
+printf "%s\n" "Checking if GSM codec is disabled...yes" >&6; }
 	       fi
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if GSM codec is disabled...no" >&5
-$as_echo "Checking if GSM codec is disabled...no" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if GSM codec is disabled...no" >&5
+printf "%s\n" "Checking if GSM codec is disabled...no" >&6; } ;;
+esac
 fi
 
 
 
 # Check whether --enable-g722-codec was given.
-if test "${enable_g722_codec+set}" = set; then :
+if test ${enable_g722_codec+y}
+then :
   enableval=$enable_g722_codec; if test "$enable_g722_codec" = "no"; then
 		ac_no_g722_codec=1
-		$as_echo "#define PJMEDIA_HAS_G722_CODEC 0" >>confdefs.h
+		printf "%s\n" "#define PJMEDIA_HAS_G722_CODEC 0" >>confdefs.h
 
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if G.722 codec is disabled...yes" >&5
-$as_echo "Checking if G.722 codec is disabled...yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if G.722 codec is disabled...yes" >&5
+printf "%s\n" "Checking if G.722 codec is disabled...yes" >&6; }
 	       fi
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if G.722 codec is disabled...no" >&5
-$as_echo "Checking if G.722 codec is disabled...no" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if G.722 codec is disabled...no" >&5
+printf "%s\n" "Checking if G.722 codec is disabled...no" >&6; } ;;
+esac
 fi
 
 
 
 # Check whether --enable-g7221-codec was given.
-if test "${enable_g7221_codec+set}" = set; then :
+if test ${enable_g7221_codec+y}
+then :
   enableval=$enable_g7221_codec; if test "$enable_g7221_codec" = "no"; then
 		ac_no_g7221_codec=1
-		$as_echo "#define PJMEDIA_HAS_G7221_CODEC 0" >>confdefs.h
+		printf "%s\n" "#define PJMEDIA_HAS_G7221_CODEC 0" >>confdefs.h
 
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if G.722.1 codec is disabled...yes" >&5
-$as_echo "Checking if G.722.1 codec is disabled...yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if G.722.1 codec is disabled...yes" >&5
+printf "%s\n" "Checking if G.722.1 codec is disabled...yes" >&6; }
 	       fi
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if G.722.1 codec is disabled...no" >&5
-$as_echo "Checking if G.722.1 codec is disabled...no" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if G.722.1 codec is disabled...no" >&5
+printf "%s\n" "Checking if G.722.1 codec is disabled...no" >&6; } ;;
+esac
 fi
 
 
 
 # Check whether --enable-speex-codec was given.
-if test "${enable_speex_codec+set}" = set; then :
+if test ${enable_speex_codec+y}
+then :
   enableval=$enable_speex_codec; if test "$enable_speex_codec" = "no"; then
 		ac_no_speex_codec=1
-		$as_echo "#define PJMEDIA_HAS_SPEEX_CODEC 0" >>confdefs.h
+		printf "%s\n" "#define PJMEDIA_HAS_SPEEX_CODEC 0" >>confdefs.h
 
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if Speex codec is disabled...yes" >&5
-$as_echo "Checking if Speex codec is disabled...yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if Speex codec is disabled...yes" >&5
+printf "%s\n" "Checking if Speex codec is disabled...yes" >&6; }
 	       fi
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if Speex codec is disabled...no" >&5
-$as_echo "Checking if Speex codec is disabled...no" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if Speex codec is disabled...no" >&5
+printf "%s\n" "Checking if Speex codec is disabled...no" >&6; } ;;
+esac
 fi
 
 
 
 # Check whether --enable-ilbc-codec was given.
-if test "${enable_ilbc_codec+set}" = set; then :
+if test ${enable_ilbc_codec+y}
+then :
   enableval=$enable_ilbc_codec; if test "$enable_ilbc_codec" = "no"; then
 		ac_no_ilbc_codec=1
-		$as_echo "#define PJMEDIA_HAS_ILBC_CODEC 0" >>confdefs.h
+		printf "%s\n" "#define PJMEDIA_HAS_ILBC_CODEC 0" >>confdefs.h
 
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if iLBC codec is disabled...yes" >&5
-$as_echo "Checking if iLBC codec is disabled...yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if iLBC codec is disabled...yes" >&5
+printf "%s\n" "Checking if iLBC codec is disabled...yes" >&6; }
 	       fi
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if iLBC codec is disabled...no" >&5
-$as_echo "Checking if iLBC codec is disabled...no" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if iLBC codec is disabled...no" >&5
+printf "%s\n" "Checking if iLBC codec is disabled...no" >&6; } ;;
+esac
 fi
 
 
 # Check whether --enable-libsamplerate was given.
-if test "${enable_libsamplerate+set}" = set; then :
+if test ${enable_libsamplerate+y}
+then :
   enableval=$enable_libsamplerate;
            if test "$enable_libsamplerate" = "yes"; then
-             { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if libsamplerate is enabled...yes" >&5
-$as_echo "Checking if libsamplerate is enabled...yes" >&6; }
-             { $as_echo "$as_me:${as_lineno-$LINENO}: checking for src_new in -lsamplerate" >&5
-$as_echo_n "checking for src_new in -lsamplerate... " >&6; }
-if ${ac_cv_lib_samplerate_src_new+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+             { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if libsamplerate is enabled...yes" >&5
+printf "%s\n" "Checking if libsamplerate is enabled...yes" >&6; }
+             { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for src_new in -lsamplerate" >&5
+printf %s "checking for src_new in -lsamplerate... " >&6; }
+if test ${ac_cv_lib_samplerate_src_new+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lsamplerate  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -6868,13 +7630,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char src_new ();
+char src_new (void);
 int
-main ()
+main (void)
 {
 return src_new ();
   ;
@@ -6881,21 +7646,23 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_samplerate_src_new=yes
-else
-  ac_cv_lib_samplerate_src_new=no
+else case e in #(
+  e) ac_cv_lib_samplerate_src_new=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_samplerate_src_new" >&5
-$as_echo "$ac_cv_lib_samplerate_src_new" >&6; }
-if test "x$ac_cv_lib_samplerate_src_new" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBSAMPLERATE 1
-_ACEOF
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_samplerate_src_new" >&5
+printf "%s\n" "$ac_cv_lib_samplerate_src_new" >&6; }
+if test "x$ac_cv_lib_samplerate_src_new" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBSAMPLERATE 1" >>confdefs.h
 
   LIBS="-lsamplerate $LIBS"
 
@@ -6903,38 +7670,43 @@
 
              ac_pjmedia_resample=libsamplerate
            else
-             { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if libsamplerate is enabled...no" >&5
-$as_echo "Checking if libsamplerate is enabled...no" >&6; }
+             { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if libsamplerate is enabled...no" >&5
+printf "%s\n" "Checking if libsamplerate is enabled...no" >&6; }
            fi
 
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if libsamplerate is enabled...no" >&5
-$as_echo "Checking if libsamplerate is enabled...no" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if libsamplerate is enabled...no" >&5
+printf "%s\n" "Checking if libsamplerate is enabled...no" >&6; } ;;
+esac
 fi
 
 
 
 # Check whether --enable-resample_dll was given.
-if test "${enable_resample_dll+set}" = set; then :
+if test ${enable_resample_dll+y}
+then :
   enableval=$enable_resample_dll; if test "$enable_resample_dll" = "yes"; then
 		ac_resample_dll=1
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Building libresample as shared library... yes" >&5
-$as_echo "Building libresample as shared library... yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Building libresample as shared library... yes" >&5
+printf "%s\n" "Building libresample as shared library... yes" >&6; }
 	       fi
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Building libresample as shared library... no" >&5
-$as_echo "Building libresample as shared library... no" >&6; }
-
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Building libresample as shared library... no" >&5
+printf "%s\n" "Building libresample as shared library... no" >&6; }
+	       ;;
+esac
 fi
 
 
 
 # Check whether --with-sdl was given.
-if test "${with_sdl+set}" = set; then :
+if test ${with_sdl+y}
+then :
   withval=$with_sdl;
-else
-  with_sdl=no
-
+else case e in #(
+  e) with_sdl=no
+     ;;
+esac
 fi
 
 
@@ -6943,28 +7715,30 @@
 fi
 
 # Check whether --enable-sdl was given.
-if test "${enable_sdl+set}" = set; then :
+if test ${enable_sdl+y}
+then :
   enableval=$enable_sdl;
 		if test "$enable_sdl" = "no"; then
-		  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if SDL is disabled... yes" >&5
-$as_echo "Checking if SDL is disabled... yes" >&6; }
+		  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if SDL is disabled... yes" >&5
+printf "%s\n" "Checking if SDL is disabled... yes" >&6; }
 		fi
 
-else
-
+else case e in #(
+  e)
 		  if test "x$with_sdl" != "xno" -a "x$with_sdl" != "x"; then
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Using SDL prefix... $with_sdl" >&5
-$as_echo "Using SDL prefix... $with_sdl" >&6; }
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Using SDL prefix... $with_sdl" >&5
+printf "%s\n" "Using SDL prefix... $with_sdl" >&6; }
 			for ac_prog in sdl2-config sdl-config
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_path_SDL_CONFIG+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  case $SDL_CONFIG in
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_SDL_CONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) case $SDL_CONFIG in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_SDL_CONFIG="$SDL_CONFIG" # Let the user override the test with a path.
   ;;
@@ -6973,11 +7747,15 @@
 for as_dir in $with_sdl/bin
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_path_SDL_CONFIG="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_SDL_CONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -6985,15 +7763,16 @@
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 SDL_CONFIG=$ac_cv_path_SDL_CONFIG
 if test -n "$SDL_CONFIG"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $SDL_CONFIG" >&5
-$as_echo "$SDL_CONFIG" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $SDL_CONFIG" >&5
+printf "%s\n" "$SDL_CONFIG" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -7005,12 +7784,13 @@
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_path_SDL_CONFIG+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  case $SDL_CONFIG in
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_SDL_CONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) case $SDL_CONFIG in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_SDL_CONFIG="$SDL_CONFIG" # Let the user override the test with a path.
   ;;
@@ -7019,11 +7799,15 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_path_SDL_CONFIG="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_SDL_CONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -7031,15 +7815,16 @@
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 SDL_CONFIG=$ac_cv_path_SDL_CONFIG
 if test -n "$SDL_CONFIG"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $SDL_CONFIG" >&5
-$as_echo "$SDL_CONFIG" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $SDL_CONFIG" >&5
+printf "%s\n" "$SDL_CONFIG" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -7048,11 +7833,11 @@
 
 		  fi
 
-		  { $as_echo "$as_me:${as_lineno-$LINENO}: checking SDL availability" >&5
-$as_echo_n "checking SDL availability... " >&6; }
+		  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking SDL availability" >&5
+printf %s "checking SDL availability... " >&6; }
 		  if test "x$SDL_CONFIG" = "x"; then
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
-$as_echo "not found" >&6; }
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: not found" >&5
+printf "%s\n" "not found" >&6; }
 		  elif (sh -c "$SDL_CONFIG --version" | grep -e '^1\.3' -e '^2\.') then
 
 
@@ -7061,10 +7846,11 @@
 			ac_sdl_ldflags=`$SDL_CONFIG --libs`
 			LIBS="$LIBS $ac_sdl_ldflags"
 		  else
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Unsupported SDL version" >&5
-$as_echo "Unsupported SDL version" >&6; }
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Unsupported SDL version" >&5
+printf "%s\n" "Unsupported SDL version" >&6; }
 		  fi
-
+	       ;;
+esac
 fi
 
 
@@ -7071,11 +7857,13 @@
 
 
 # Check whether --with-ffmpeg was given.
-if test "${with_ffmpeg+set}" = set; then :
+if test ${with_ffmpeg+y}
+then :
   withval=$with_ffmpeg;
-else
-  with_ffmpeg=no
-
+else case e in #(
+  e) with_ffmpeg=no
+     ;;
+esac
 fi
 
 
@@ -7084,27 +7872,28 @@
 fi
 
 # Check whether --enable-ffmpeg was given.
-if test "${enable_ffmpeg+set}" = set; then :
+if test ${enable_ffmpeg+y}
+then :
   enableval=$enable_ffmpeg;
 	        ac_has_ffmpeg=0
 
 		if test "$enable_ffmpeg" = "no"; then
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if ffmpeg is disabled... yes" >&5
-$as_echo "Checking if ffmpeg is disabled... yes" >&6; }
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if ffmpeg is disabled... yes" >&5
+printf "%s\n" "Checking if ffmpeg is disabled... yes" >&6; }
 		fi
 
-else
+else case e in #(
+  e)
 
 
 
-
 		FFMPEG_PREFIX=""
 
 		SAVED_PKG_CONFIG_PATH=$PKG_CONFIG_PATH
     		if test "x$with_ffmpeg" != "xno" -a "x$with_ffmpeg" != "x"; then
 			FFMPEG_PREFIX=$with_ffmpeg
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Using ffmpeg prefix... $FFMPEG_PREFIX" >&5
-$as_echo "Using ffmpeg prefix... $FFMPEG_PREFIX" >&6; }
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Using ffmpeg prefix... $FFMPEG_PREFIX" >&5
+printf "%s\n" "Using ffmpeg prefix... $FFMPEG_PREFIX" >&6; }
 			export PKG_CONFIG_PATH=$FFMPEG_PREFIX/lib/pkgconfig
 		fi
 
@@ -7112,12 +7901,13 @@
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_PKG_CONFIG+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$PKG_CONFIG"; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_PKG_CONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$PKG_CONFIG"; then
   ac_cv_prog_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -7124,11 +7914,15 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_PKG_CONFIG="$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -7135,15 +7929,16 @@
   done
 IFS=$as_save_IFS
 
+fi ;;
+esac
 fi
-fi
 PKG_CONFIG=$ac_cv_prog_PKG_CONFIG
 if test -n "$PKG_CONFIG"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
-$as_echo "$PKG_CONFIG" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
+printf "%s\n" "$PKG_CONFIG" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -7153,8 +7948,8 @@
 
 
 		if test "$PKG_CONFIG" != "none"; then
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: checking ffmpeg packages" >&5
-$as_echo_n "checking ffmpeg packages... " >&6; }
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking ffmpeg packages" >&5
+printf %s "checking ffmpeg packages... " >&6; }
 			av_pkg=""
 			if $PKG_CONFIG --exists libavdevice; then
 				ac_ffmpeg_cflags="$ac_ffmpeg_cflags -DPJMEDIA_HAS_LIBAVDEVICE=1"
@@ -7178,11 +7973,11 @@
 			fi
 
 			if test "x$av_pkg" == "x"; then
-			   { $as_echo "$as_me:${as_lineno-$LINENO}: result: none detected (check the prefix)! **" >&5
-$as_echo "none detected (check the prefix)! **" >&6; }
+			   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none detected (check the prefix)! **" >&5
+printf "%s\n" "none detected (check the prefix)! **" >&6; }
 			else
-			   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $av_pkg" >&5
-$as_echo "$av_pkg" >&6; }
+			   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $av_pkg" >&5
+printf "%s\n" "$av_pkg" >&6; }
 			fi
 
 			ac_ffmpeg_cflags="$ac_ffmpeg_cflags `$PKG_CONFIG --cflags $av_pkg`"
@@ -7190,19 +7985,20 @@
 
 		else
 
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: result: *** Warning: neither pkg-config nor python is available, ffmpeg dependency cannot be calculated. If ffmpeg libraries are not detected, you need to specify the correct CFLAGS and LDFLAGS settings for ffmpeg prior to invoking configure ***" >&5
-$as_echo "*** Warning: neither pkg-config nor python is available, ffmpeg dependency cannot be calculated. If ffmpeg libraries are not detected, you need to specify the correct CFLAGS and LDFLAGS settings for ffmpeg prior to invoking configure ***" >&6; }
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: *** Warning: neither pkg-config nor python is available, ffmpeg dependency cannot be calculated. If ffmpeg libraries are not detected, you need to specify the correct CFLAGS and LDFLAGS settings for ffmpeg prior to invoking configure ***" >&5
+printf "%s\n" "*** Warning: neither pkg-config nor python is available, ffmpeg dependency cannot be calculated. If ffmpeg libraries are not detected, you need to specify the correct CFLAGS and LDFLAGS settings for ffmpeg prior to invoking configure ***" >&6; }
 
 			LIBS="-L$FFMPEG_PREFIX/lib $LIBS"
 			LDFLAGS="-L$FFMPEG_PREFIX/lib $LDFLAGS"
 			CFLAGS="-I$FFMPEG_PREFIX/include $CFLAGS"
 
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for avdevice_version in -lavdevice" >&5
-$as_echo_n "checking for avdevice_version in -lavdevice... " >&6; }
-if ${ac_cv_lib_avdevice_avdevice_version+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for avdevice_version in -lavdevice" >&5
+printf %s "checking for avdevice_version in -lavdevice... " >&6; }
+if test ${ac_cv_lib_avdevice_avdevice_version+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lavdevice  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -7209,13 +8005,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char avdevice_version ();
+char avdevice_version (void);
 int
-main ()
+main (void)
 {
 return avdevice_version ();
   ;
@@ -7222,18 +8021,22 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_avdevice_avdevice_version=yes
-else
-  ac_cv_lib_avdevice_avdevice_version=no
+else case e in #(
+  e) ac_cv_lib_avdevice_avdevice_version=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_avdevice_avdevice_version" >&5
-$as_echo "$ac_cv_lib_avdevice_avdevice_version" >&6; }
-if test "x$ac_cv_lib_avdevice_avdevice_version" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_avdevice_avdevice_version" >&5
+printf "%s\n" "$ac_cv_lib_avdevice_avdevice_version" >&6; }
+if test "x$ac_cv_lib_avdevice_avdevice_version" = xyes
+then :
   ac_ffmpeg_cflags="$ac_ffmpeg_cflags -DPJMEDIA_HAS_LIBAVDEVICE=1"
 				      ac_ffmpeg_ldflags="$ac_ffmpeg_ldflags -lavdevice"
 
@@ -7240,12 +8043,13 @@
 
 fi
 
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for av_malloc in -lavutil" >&5
-$as_echo_n "checking for av_malloc in -lavutil... " >&6; }
-if ${ac_cv_lib_avutil_av_malloc+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for av_malloc in -lavutil" >&5
+printf %s "checking for av_malloc in -lavutil... " >&6; }
+if test ${ac_cv_lib_avutil_av_malloc+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lavutil  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -7252,13 +8056,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char av_malloc ();
+char av_malloc (void);
 int
-main ()
+main (void)
 {
 return av_malloc ();
   ;
@@ -7265,18 +8072,22 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_avutil_av_malloc=yes
-else
-  ac_cv_lib_avutil_av_malloc=no
+else case e in #(
+  e) ac_cv_lib_avutil_av_malloc=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_avutil_av_malloc" >&5
-$as_echo "$ac_cv_lib_avutil_av_malloc" >&6; }
-if test "x$ac_cv_lib_avutil_av_malloc" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_avutil_av_malloc" >&5
+printf "%s\n" "$ac_cv_lib_avutil_av_malloc" >&6; }
+if test "x$ac_cv_lib_avutil_av_malloc" = xyes
+then :
   ac_ffmpeg_cflags="$ac_ffmpeg_cflags -DPJMEDIA_HAS_LIBAVUTIL=1"
 				      ac_ffmpeg_ldflags="$ac_ffmpeg_ldflags -lavutil"
 
@@ -7283,12 +8094,13 @@
 
 fi
 
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for avcodec_init in -lavcodec" >&5
-$as_echo_n "checking for avcodec_init in -lavcodec... " >&6; }
-if ${ac_cv_lib_avcodec_avcodec_init+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for avcodec_init in -lavcodec" >&5
+printf %s "checking for avcodec_init in -lavcodec... " >&6; }
+if test ${ac_cv_lib_avcodec_avcodec_init+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lavcodec -lavutil
 				      $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7296,13 +8108,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char avcodec_init ();
+char avcodec_init (void);
 int
-main ()
+main (void)
 {
 return avcodec_init ();
   ;
@@ -7309,29 +8124,34 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_avcodec_avcodec_init=yes
-else
-  ac_cv_lib_avcodec_avcodec_init=no
+else case e in #(
+  e) ac_cv_lib_avcodec_avcodec_init=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_avcodec_avcodec_init" >&5
-$as_echo "$ac_cv_lib_avcodec_avcodec_init" >&6; }
-if test "x$ac_cv_lib_avcodec_avcodec_init" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_avcodec_avcodec_init" >&5
+printf "%s\n" "$ac_cv_lib_avcodec_avcodec_init" >&6; }
+if test "x$ac_cv_lib_avcodec_avcodec_init" = xyes
+then :
   ac_ffmpeg_cflags="$ac_ffmpeg_cflags -DPJMEDIA_HAS_LIBAVCODEC=1"
 				      ac_ffmpeg_ldflags="$ac_ffmpeg_ldflags -lavcodec"
 
 fi
 
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for av_register_all in -lavformat" >&5
-$as_echo_n "checking for av_register_all in -lavformat... " >&6; }
-if ${ac_cv_lib_avformat_av_register_all+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for av_register_all in -lavformat" >&5
+printf %s "checking for av_register_all in -lavformat... " >&6; }
+if test ${ac_cv_lib_avformat_av_register_all+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lavformat -lavcodec -lavutil
 				      $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7339,13 +8159,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char av_register_all ();
+char av_register_all (void);
 int
-main ()
+main (void)
 {
 return av_register_all ();
   ;
@@ -7352,29 +8175,34 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_avformat_av_register_all=yes
-else
-  ac_cv_lib_avformat_av_register_all=no
+else case e in #(
+  e) ac_cv_lib_avformat_av_register_all=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_avformat_av_register_all" >&5
-$as_echo "$ac_cv_lib_avformat_av_register_all" >&6; }
-if test "x$ac_cv_lib_avformat_av_register_all" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_avformat_av_register_all" >&5
+printf "%s\n" "$ac_cv_lib_avformat_av_register_all" >&6; }
+if test "x$ac_cv_lib_avformat_av_register_all" = xyes
+then :
   ac_ffmpeg_cflags="$ac_ffmpeg_cflags -DPJMEDIA_HAS_LIBAVFORMAT=1"
 				      ac_ffmpeg_ldflags="$ac_ffmpeg_ldflags -lavformat"
 
 fi
 
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sws_scale in -lswscale" >&5
-$as_echo_n "checking for sws_scale in -lswscale... " >&6; }
-if ${ac_cv_lib_swscale_sws_scale+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for sws_scale in -lswscale" >&5
+printf %s "checking for sws_scale in -lswscale... " >&6; }
+if test ${ac_cv_lib_swscale_sws_scale+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lswscale -lavutil
 				      $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7382,13 +8210,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char sws_scale ();
+char sws_scale (void);
 int
-main ()
+main (void)
 {
 return sws_scale ();
   ;
@@ -7395,29 +8226,34 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_swscale_sws_scale=yes
-else
-  ac_cv_lib_swscale_sws_scale=no
+else case e in #(
+  e) ac_cv_lib_swscale_sws_scale=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_swscale_sws_scale" >&5
-$as_echo "$ac_cv_lib_swscale_sws_scale" >&6; }
-if test "x$ac_cv_lib_swscale_sws_scale" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_swscale_sws_scale" >&5
+printf "%s\n" "$ac_cv_lib_swscale_sws_scale" >&6; }
+if test "x$ac_cv_lib_swscale_sws_scale" = xyes
+then :
   ac_ffmpeg_cflags="$ac_ffmpeg_cflags -DPJMEDIA_HAS_LIBSWSCALE=1"
 				      ac_ffmpeg_ldflags="$ac_ffmpeg_ldflags -lswscale"
 
 fi
 
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for avcore_version in -lavcore" >&5
-$as_echo_n "checking for avcore_version in -lavcore... " >&6; }
-if ${ac_cv_lib_avcore_avcore_version+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for avcore_version in -lavcore" >&5
+printf %s "checking for avcore_version in -lavcore... " >&6; }
+if test ${ac_cv_lib_avcore_avcore_version+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lavcore  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -7424,13 +8260,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char avcore_version ();
+char avcore_version (void);
 int
-main ()
+main (void)
 {
 return avcore_version ();
   ;
@@ -7437,18 +8276,22 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_avcore_avcore_version=yes
-else
-  ac_cv_lib_avcore_avcore_version=no
+else case e in #(
+  e) ac_cv_lib_avcore_avcore_version=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_avcore_avcore_version" >&5
-$as_echo "$ac_cv_lib_avcore_avcore_version" >&6; }
-if test "x$ac_cv_lib_avcore_avcore_version" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_avcore_avcore_version" >&5
+printf "%s\n" "$ac_cv_lib_avcore_avcore_version" >&6; }
+if test "x$ac_cv_lib_avcore_avcore_version" = xyes
+then :
   ac_ffmpeg_cflags="$ac_ffmpeg_cflags -DPJMEDIA_HAS_LIBAVCORE=1"
 				      ac_ffmpeg_ldflags="$ac_ffmpeg_ldflags -lavcore"
 
@@ -7461,15 +8304,15 @@
 		ac_fn_c_check_type "$LINENO" "enum AVPixelFormat" "ac_cv_type_enum_AVPixelFormat" "#include <libavformat/avformat.h>
 
 "
-if test "x$ac_cv_type_enum_AVPixelFormat" = xyes; then :
+if test "x$ac_cv_type_enum_AVPixelFormat" = xyes
+then :
 
-cat >>confdefs.h <<_ACEOF
-#define HAVE_ENUM_AVPIXELFORMAT 1
-_ACEOF
+printf "%s\n" "#define HAVE_ENUM_AVPIXELFORMAT 1" >>confdefs.h
 
 
-else
-  ac_ffmpeg_cflags="$ac_ffmpeg_cflags -DPJMEDIA_USE_OLD_FFMPEG=1"
+else case e in #(
+  e) ac_ffmpeg_cflags="$ac_ffmpeg_cflags -DPJMEDIA_USE_OLD_FFMPEG=1" ;;
+esac
 fi
 
 
@@ -7476,28 +8319,31 @@
 		LIBS="$LIBS $ac_ffmpeg_ldflags"
 		export PKG_CONFIG_PATH=$SAVED_PKG_CONFIG_PATH
 
-
+	       ;;
+esac
 fi
 
 
 # Check whether --enable-v4l2 was given.
-if test "${enable_v4l2+set}" = set; then :
+if test ${enable_v4l2+y}
+then :
   enableval=$enable_v4l2;
 		if test "$enable_v4l2" = "no"; then
-		  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if V4L2 is disabled... yes" >&5
-$as_echo "Checking if V4L2 is disabled... yes" >&6; }
+		  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if V4L2 is disabled... yes" >&5
+printf "%s\n" "Checking if V4L2 is disabled... yes" >&6; }
 		fi
 
-else
+else case e in #(
+  e)
 
 
-
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for v4l2_open in -lv4l2" >&5
-$as_echo_n "checking for v4l2_open in -lv4l2... " >&6; }
-if ${ac_cv_lib_v4l2_v4l2_open+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for v4l2_open in -lv4l2" >&5
+printf %s "checking for v4l2_open in -lv4l2... " >&6; }
+if test ${ac_cv_lib_v4l2_v4l2_open+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lv4l2  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -7504,13 +8350,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char v4l2_open ();
+char v4l2_open (void);
 int
-main ()
+main (void)
 {
 return v4l2_open ();
   ;
@@ -7517,18 +8366,22 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_v4l2_v4l2_open=yes
-else
-  ac_cv_lib_v4l2_v4l2_open=no
+else case e in #(
+  e) ac_cv_lib_v4l2_v4l2_open=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_v4l2_v4l2_open" >&5
-$as_echo "$ac_cv_lib_v4l2_v4l2_open" >&6; }
-if test "x$ac_cv_lib_v4l2_v4l2_open" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_v4l2_v4l2_open" >&5
+printf "%s\n" "$ac_cv_lib_v4l2_v4l2_open" >&6; }
+if test "x$ac_cv_lib_v4l2_v4l2_open" = xyes
+then :
   ac_v4l2_cflags="-DPJMEDIA_VIDEO_DEV_HAS_V4L2=1"
 			      ac_v4l2_ldflags="-lv4l2"
 			      LIBS="$LIBS -lv4l2"
@@ -7536,17 +8389,20 @@
 
 fi
 
-
+	       ;;
+esac
 fi
 
 
 
 # Check whether --with-openh264 was given.
-if test "${with_openh264+set}" = set; then :
+if test ${with_openh264+y}
+then :
   withval=$with_openh264;
-else
-  with_openh264=no
-
+else case e in #(
+  e) with_openh264=no
+             ;;
+esac
 fi
 
 
@@ -7557,28 +8413,29 @@
 
 
 # Check whether --enable-openh264 was given.
-if test "${enable_openh264+set}" = set; then :
+if test ${enable_openh264+y}
+then :
   enableval=$enable_openh264;
 		if test "$enable_openh264" = "no"; then
-		  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if OpenH264 is disabled... yes" >&5
-$as_echo "Checking if OpenH264 is disabled... yes" >&6; }
+		  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if OpenH264 is disabled... yes" >&5
+printf "%s\n" "Checking if OpenH264 is disabled... yes" >&6; }
 		fi
 
-else
-
+else case e in #(
+  e)
 		  if test "x$with_openh264" != "xno" -a "x$with_openh264" != "x"; then
 		        OPENH264_PREFIX=$with_openh264
 		  	OPENH264_CFLAGS="-I$OPENH264_PREFIX/include"
 			OPENH264_LDFLAGS="-L$OPENH264_PREFIX/lib"
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Using OpenH264 prefix... $with_openh264" >&5
-$as_echo "Using OpenH264 prefix... $with_openh264" >&6; }
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Using OpenH264 prefix... $with_openh264" >&5
+printf "%s\n" "Using OpenH264 prefix... $with_openh264" >&6; }
 		  else
 		  	OPENH264_CFLAGS=""
 			OPENH264_LDFLAGS=""
 		  fi
 
-		  { $as_echo "$as_me:${as_lineno-$LINENO}: checking OpenH264 usability" >&5
-$as_echo_n "checking OpenH264 usability... " >&6; }
+		  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking OpenH264 usability" >&5
+printf %s "checking OpenH264 usability... " >&6; }
 
 		  OPENH264_LIBS="-lopenh264 -lstdc++"
 
@@ -7596,7 +8453,7 @@
 		                                    #include <wels/codec_app_def.h>
 
 int
-main ()
+main (void)
 {
 WelsCreateSVCEncoder(0);
 
@@ -7604,35 +8461,40 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
    ac_openh264_cflags="-DPJMEDIA_HAS_OPENH264_CODEC=1 $OPENH264_CFLAGS"
 		  		   ac_openh264_ldflags="$OPENH264_LDFLAGS $OPENH264_LIBS"
-		  		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
-$as_echo "ok" >&6; }
+		  		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+printf "%s\n" "ok" >&6; }
 
-else
-
+else case e in #(
+  e)
 				   LIBS="$SAVED_LIBS"
 				   LDFLAGS="$SAVED_LDFLAGS"
 				   CFLAGS="$SAVED_CFLAGS"
-		  		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-
+		  		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+		  		  ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 
-
+	       ;;
+esac
 fi
 
 
 
 # Check whether --with-vpx was given.
-if test "${with_vpx+set}" = set; then :
+if test ${with_vpx+y}
+then :
   withval=$with_vpx;
-else
-  with_vpx=no
-
+else case e in #(
+  e) with_vpx=no
+             ;;
+esac
 fi
 
 
@@ -7643,28 +8505,29 @@
 
 
 # Check whether --enable-vpx was given.
-if test "${enable_vpx+set}" = set; then :
+if test ${enable_vpx+y}
+then :
   enableval=$enable_vpx;
 		if test "$enable_vpx" = "no"; then
-		  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if VPX is disabled... yes" >&5
-$as_echo "Checking if VPX is disabled... yes" >&6; }
+		  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if VPX is disabled... yes" >&5
+printf "%s\n" "Checking if VPX is disabled... yes" >&6; }
 		fi
 
-else
-
+else case e in #(
+  e)
 		  if test "x$with_vpx" != "xno" -a "x$with_vpx" != "x"; then
 		        VPX_PREFIX=$with_vpx
 		  	VPX_CFLAGS="-I$VPX_PREFIX/include"
 			VPX_LDFLAGS="-L$VPX_PREFIX/lib"
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Using VPX prefix... $with_vpx" >&5
-$as_echo "Using VPX prefix... $with_vpx" >&6; }
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Using VPX prefix... $with_vpx" >&5
+printf "%s\n" "Using VPX prefix... $with_vpx" >&6; }
 		  else
 		  	VPX_CFLAGS=""
 			VPX_LDFLAGS=""
 		  fi
 
-		  { $as_echo "$as_me:${as_lineno-$LINENO}: checking VPX usability" >&5
-$as_echo_n "checking VPX usability... " >&6; }
+		  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking VPX usability" >&5
+printf %s "checking VPX usability... " >&6; }
 
 		  VPX_LIBS="-lvpx"
 
@@ -7682,7 +8545,7 @@
 						    #include <vpx/vp8cx.h>
 
 int
-main ()
+main (void)
 {
 vpx_codec_iface_t *(*enc_if)() = &vpx_codec_vp8_cx;
 
@@ -7690,95 +8553,106 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
    ac_vpx_cflags="-DPJMEDIA_HAS_VPX_CODEC=1 $VPX_CFLAGS"
 		  		   ac_vpx_ldflags="$VPX_LDFLAGS $VPX_LIBS"
-		  		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
-$as_echo "ok" >&6; }
+		  		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+printf "%s\n" "ok" >&6; }
 
-else
-
+else case e in #(
+  e)
 				   LIBS="$SAVED_LIBS"
 				   LDFLAGS="$SAVED_LDFLAGS"
 				   CFLAGS="$SAVED_CFLAGS"
-		  		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-
+		  		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+		  		  ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 
-
+	       ;;
+esac
 fi
 
 
 
 # Check whether --enable-ipp was given.
-if test "${enable_ipp+set}" = set; then :
+if test ${enable_ipp+y}
+then :
   enableval=$enable_ipp;
-else
-  enable_ipp=no
-
+else case e in #(
+  e) enable_ipp=no
+     ;;
+esac
 fi
 
 
 
 # Check whether --with-ipp was given.
-if test "${with_ipp+set}" = set; then :
+if test ${with_ipp+y}
+then :
   withval=$with_ipp;
-else
-  with_ipp=no
-
+else case e in #(
+  e) with_ipp=no
+     ;;
+esac
 fi
 
 
 
 # Check whether --with-ipp-samples was given.
-if test "${with_ipp_samples+set}" = set; then :
+if test ${with_ipp_samples+y}
+then :
   withval=$with_ipp_samples;
-else
-  with_ipp_samples=no
-
+else case e in #(
+  e) with_ipp_samples=no
+     ;;
+esac
 fi
 
 
 
 # Check whether --with-ipp-arch was given.
-if test "${with_ipp_arch+set}" = set; then :
+if test ${with_ipp_arch+y}
+then :
   withval=$with_ipp_arch;
-else
-  with_ipp_arch=no
-
+else case e in #(
+  e) with_ipp_arch=no
+     ;;
+esac
 fi
 
 
 if test "x$enable_ipp" != "xno"; then
-                { $as_echo "$as_me:${as_lineno-$LINENO}: checking Intel IPP location" >&5
-$as_echo_n "checking Intel IPP location... " >&6; }
+                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking Intel IPP location" >&5
+printf %s "checking Intel IPP location... " >&6; }
 
     if test "x$with_ipp" != "xno" -a "x$with_ipp" != "x"; then
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_ipp" >&5
-$as_echo "$with_ipp" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $with_ipp" >&5
+printf "%s\n" "$with_ipp" >&6; }
 	IPPROOT=$with_ipp
     elif test "x$IPPROOT" = "x"; then
 	if test -d /opt/intel/ipp; then
 	    IPPROOT=`ls -d /opt/intel/ipp/*/* | head -1`
-	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: autodetected in $IPPROOT" >&5
-$as_echo "autodetected in $IPPROOT" >&6; }
+	    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: autodetected in $IPPROOT" >&5
+printf "%s\n" "autodetected in $IPPROOT" >&6; }
 	fi
     else
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $IPPROOT" >&5
-$as_echo "$IPPROOT" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $IPPROOT" >&5
+printf "%s\n" "$IPPROOT" >&6; }
     fi
 
     if test "x$with_ipp_arch" != "xno"; then
 	IPP_SUFFIX=$with_ipp_arch
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: IPP arch suffix is set to $IPP_SUFFIX" >&5
-$as_echo "IPP arch suffix is set to $IPP_SUFFIX" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: IPP arch suffix is set to $IPP_SUFFIX" >&5
+printf "%s\n" "IPP arch suffix is set to $IPP_SUFFIX" >&6; }
     else
 	IPP_SUFFIX=""
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: IPP arch suffix is set to empty" >&5
-$as_echo "IPP arch suffix is set to empty" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: IPP arch suffix is set to empty" >&5
+printf "%s\n" "IPP arch suffix is set to empty" >&6; }
     fi
 
     if test x$IPPROOT = x; then
@@ -7841,14 +8715,14 @@
 	LIBS="$IPP_LIBS $LIBS"
 
 
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking Intel IPP usability" >&5
-$as_echo_n "checking Intel IPP usability... " >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking Intel IPP usability" >&5
+printf %s "checking Intel IPP usability... " >&6; }
 	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <ippcore.h>
 
 int
-main ()
+main (void)
 {
 ippStaticInit();
   ;
@@ -7855,16 +8729,18 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
-$as_echo "ok" >&6; }
-else
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+if ac_fn_c_try_link "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+printf "%s\n" "ok" >&6; }
+else case e in #(
+  e) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "Error: unable to recognize your IPP installation. Make sure the paths and ARCH suffix are set correctly, run with --help for more info
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 
 	CFLAGS="$SAVED_CFLAGS"
@@ -7872,22 +8748,22 @@
 	LIBS="$SAVED_LIBS"
     fi
 
-                { $as_echo "$as_me:${as_lineno-$LINENO}: checking Intel IPP samples location" >&5
-$as_echo_n "checking Intel IPP samples location... " >&6; }
+                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking Intel IPP samples location" >&5
+printf %s "checking Intel IPP samples location... " >&6; }
 
     if test "x$with_ipp_samples" != "xno" -a "x$with_ipp_samples" != "x"; then
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_ipp_samples" >&5
-$as_echo "$with_ipp_samples" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $with_ipp_samples" >&5
+printf "%s\n" "$with_ipp_samples" >&6; }
 	IPPSAMPLES=$with_ipp_samples
     elif test "x$IPPSAMPLES" = "x"; then
 	if test -d /opt/intel/ipp-samples; then
 	    IPPSAMPLES=/opt/intel/ipp-samples
-	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: autodetected in $IPPSAMPLES" >&5
-$as_echo "autodetected in $IPPSAMPLES" >&6; }
+	    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: autodetected in $IPPSAMPLES" >&5
+printf "%s\n" "autodetected in $IPPSAMPLES" >&6; }
 	fi
     else
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $IPPSAMPLES" >&5
-$as_echo "$IPPSAMPLES" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $IPPSAMPLES" >&5
+printf "%s\n" "$IPPSAMPLES" >&6; }
     fi
 
     if test x$IPPSAMPLES = x; then
@@ -7901,8 +8777,8 @@
 	IPPSAMPLES=`echo $IPPSAMPLES | sed 's/\/$//'`
 
 	# Guess the libusc.a/libspeech.a build location
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking Intel IPP USC build location" >&5
-$as_echo_n "checking Intel IPP USC build location... " >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking Intel IPP USC build location" >&5
+printf %s "checking Intel IPP USC build location... " >&6; }
 	if test -d $IPPSAMPLES/speech-codecs/bin; then
 	    IPPVER=5
 	    IPPSAMP_DIR=`ls -d $IPPSAMPLES/speech-codecs/bin/*gcc*/lib | head -1`
@@ -7915,24 +8791,24 @@
 		# icc compiler
 	    	IPPSAMP_DIR=`ls -d $IPPSAMPLES/speech-codecs/_bin/*icc*/lib | head -1`
 	    else
-		{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+		{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "Unable to find to find built binaries under $IPPSAMPLES/speech-codecs/{bin,_bin}. Have you built the IPP samples?
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 	    fi
 	else
-	    { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+	    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "unable to find $IPPSAMPLES/speech-codecs/bin/*gcc*/lib or $IPPSAMPLES/speech-codecs/_bin/*gcc*/lib directory. Have you built the samples?
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 	fi
 
 	# Test the directory
 	if test ! -d $IPPSAMP_DIR; then
-	    { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+	    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "There's something wrong with this script, directory $IPPSAMP_DIR does not exist
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 	    exit 1;
 	fi
 
@@ -7943,21 +8819,21 @@
 	    IPPSAMP_LIBS="libspeech.a"
 	    IPPSAMP_LDLIBS="-lspeech"
 	else
-	    { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+	    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "bug in this script: unsupported IPP version
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 	fi
 
 	if test ! -f $IPPSAMP_DIR/$IPPSAMP_LIBS; then
-	    { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+	    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "$IPPSAMP_LIBS doesn't exist in $IPPSAMP_DIR
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 	fi
 
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $IPPSAMP_DIR" >&5
-$as_echo "$IPPSAMP_DIR" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $IPPSAMP_DIR" >&5
+printf "%s\n" "$IPPSAMP_DIR" >&6; }
 
 	SAVED_CFLAGS="$CFLAGS"
 	SAVED_LDFLAGS="$LDFLAGS"
@@ -7968,14 +8844,14 @@
 	LDFLAGS="$LDFLAGS -L$IPPSAMP_DIR"
 	LIBS="$IPPSAMP_LDLIBS $LIBS"
 
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking Intel IPP USC usability" >&5
-$as_echo_n "checking Intel IPP USC usability... " >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking Intel IPP USC usability" >&5
+printf %s "checking Intel IPP USC usability... " >&6; }
 	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <usc.h>
 
 int
-main ()
+main (void)
 {
 extern USC_Fxns USC_G729AFP_Fxns;
   ;
@@ -7982,16 +8858,18 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
-$as_echo "ok" >&6; }
-else
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+if ac_fn_c_try_link "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+printf "%s\n" "ok" >&6; }
+else case e in #(
+  e) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "no
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 
 	CFLAGS="$SAVED_CFLAGS"
@@ -8012,8 +8890,8 @@
 export IPP_LDFLAGS=$IPP_LDFLAGS\n\
 export IPP_LIBS=$IPP_LIBS"
 else
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: Skipping Intel IPP settings (not wanted)" >&5
-$as_echo "Skipping Intel IPP settings (not wanted)" >&6; }
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Skipping Intel IPP settings (not wanted)" >&5
+printf "%s\n" "Skipping Intel IPP settings (not wanted)" >&6; }
 fi
 
 
@@ -8020,21 +8898,25 @@
 
 
 # Check whether --with-ssl was given.
-if test "${with_ssl+set}" = set; then :
+if test ${with_ssl+y}
+then :
   withval=$with_ssl;
-else
-  with_ssl=no
-
+else case e in #(
+  e) with_ssl=no
+     ;;
+esac
 fi
 
 
 
 # Check whether --with-gnutls was given.
-if test "${with_gnutls+set}" = set; then :
+if test ${with_gnutls+y}
+then :
   withval=$with_gnutls;
-else
-  with_gnutls=no
-
+else case e in #(
+  e) with_gnutls=no
+     ;;
+esac
 fi
 
 
@@ -8048,13 +8930,14 @@
 
 
 # Check whether --enable-darwin-ssl was given.
-if test "${enable_darwin_ssl+set}" = set; then :
+if test ${enable_darwin_ssl+y}
+then :
   enableval=$enable_darwin_ssl; if test "$enable_darwin_ssl" = "no"; then
-		 { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if Darwin SSL support is disabled... yes" >&5
-$as_echo "Checking if Darwin SSL support is disabled... yes" >&6; }
+		 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if Darwin SSL support is disabled... yes" >&5
+printf "%s\n" "Checking if Darwin SSL support is disabled... yes" >&6; }
 	        fi
-else
-
+else case e in #(
+  e)
 		case $target in
 	  	*darwin*)
 	            SAVED_CFLAGS="$CFLAGS"
@@ -8065,7 +8948,7 @@
 /* end confdefs.h.  */
 #include <Security/SecureTransport.h>
 int
-main ()
+main (void)
 {
 if (__builtin_available(macOS 10.12, iOS 10.0, *)) {
 			     SSLContextRef ssl_ctx;
@@ -8075,63 +8958,66 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_ssl_backend=darwin
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 		    CFLAGS="$SAVED_CFLAGS"
 		    LIBS="$SAVED_LIBS"
 	            if test "x$ac_ssl_backend" = "xdarwin"; then
-		        $as_echo "#define PJ_HAS_SSL_SOCK 1" >>confdefs.h
+		        printf "%s\n" "#define PJ_HAS_SSL_SOCK 1" >>confdefs.h
 
-		        $as_echo "#define PJ_SSL_SOCK_IMP PJ_SSL_SOCK_IMP_DARWIN" >>confdefs.h
+		        printf "%s\n" "#define PJ_SSL_SOCK_IMP PJ_SSL_SOCK_IMP_DARWIN" >>confdefs.h
 
 		        LIBS="$LIBS -framework Security"
-	  	        { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if Darwin SSL is available... yes" >&5
-$as_echo "Checking if Darwin SSL is available... yes" >&6; }
+	  	        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if Darwin SSL is available... yes" >&5
+printf "%s\n" "Checking if Darwin SSL is available... yes" >&6; }
 	            else
-	                { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if Darwin SSL is available... no" >&5
-$as_echo "Checking if Darwin SSL is available... no" >&6; }
+	                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if Darwin SSL is available... no" >&5
+printf "%s\n" "Checking if Darwin SSL is available... no" >&6; }
 		    fi
 		    ;;
 		esac
-
+	       ;;
+esac
 fi
 
 
 # Check whether --enable-ssl was given.
-if test "${enable_ssl+set}" = set; then :
+if test ${enable_ssl+y}
+then :
   enableval=$enable_ssl;
 		if test "$enable_ssl" = "no"; then
 		 ac_no_ssl=1
-		 { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if SSL support is disabled... yes" >&5
-$as_echo "Checking if SSL support is disabled... yes" >&6; }
+		 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if SSL support is disabled... yes" >&5
+printf "%s\n" "Checking if SSL support is disabled... yes" >&6; }
 	        fi
 
-else
-
+else case e in #(
+  e)
 	        if test "x$with_ssl" != "xno" -a "x$with_ssl" != "x"; then
                     CFLAGS="$CFLAGS -I$with_ssl/include"
                     CPPFLAGS="$CPPFLAGS -I$with_ssl/include"
                     LDFLAGS="$LDFLAGS -L$with_ssl/lib"
-                    { $as_echo "$as_me:${as_lineno-$LINENO}: result: Using SSL prefix... $with_ssl" >&5
-$as_echo "Using SSL prefix... $with_ssl" >&6; }
+                    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Using SSL prefix... $with_ssl" >&5
+printf "%s\n" "Using SSL prefix... $with_ssl" >&6; }
                 fi
 
 	        if test "x$with_gnutls" = "xno"; then
 		    # We still need to check for OpenSSL installations even if
 		    # we find Darwin SSL above since DTLS requires OpenSSL.
-		    { $as_echo "$as_me:${as_lineno-$LINENO}: result: checking for OpenSSL installations.." >&5
-$as_echo "checking for OpenSSL installations.." >&6; }
+		    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: checking for OpenSSL installations.." >&5
+printf "%s\n" "checking for OpenSSL installations.." >&6; }
 
 
 
-		    ac_fn_c_check_header_mongrel "$LINENO" "openssl/ssl.h" "ac_cv_header_openssl_ssl_h" "$ac_includes_default"
-if test "x$ac_cv_header_openssl_ssl_h" = xyes; then :
+		    ac_fn_c_check_header_compile "$LINENO" "openssl/ssl.h" "ac_cv_header_openssl_ssl_h" "$ac_includes_default"
+if test "x$ac_cv_header_openssl_ssl_h" = xyes
+then :
   openssl_h_present=1
 fi
 
-
 		    case $target in
 			*win32* | *w32*)
 			    LIBS="-lz -lgdi32 $LIBS"
@@ -8139,12 +9025,13 @@
 			*)
 			    ;;
 		    esac
-		    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ERR_load_BIO_strings in -lcrypto" >&5
-$as_echo_n "checking for ERR_load_BIO_strings in -lcrypto... " >&6; }
-if ${ac_cv_lib_crypto_ERR_load_BIO_strings+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+		    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ERR_load_BIO_strings in -lcrypto" >&5
+printf %s "checking for ERR_load_BIO_strings in -lcrypto... " >&6; }
+if test ${ac_cv_lib_crypto_ERR_load_BIO_strings+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lcrypto  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8151,13 +9038,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char ERR_load_BIO_strings ();
+char ERR_load_BIO_strings (void);
 int
-main ()
+main (void)
 {
 return ERR_load_BIO_strings ();
   ;
@@ -8164,27 +9054,32 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_crypto_ERR_load_BIO_strings=yes
-else
-  ac_cv_lib_crypto_ERR_load_BIO_strings=no
+else case e in #(
+  e) ac_cv_lib_crypto_ERR_load_BIO_strings=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_crypto_ERR_load_BIO_strings" >&5
-$as_echo "$ac_cv_lib_crypto_ERR_load_BIO_strings" >&6; }
-if test "x$ac_cv_lib_crypto_ERR_load_BIO_strings" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_crypto_ERR_load_BIO_strings" >&5
+printf "%s\n" "$ac_cv_lib_crypto_ERR_load_BIO_strings" >&6; }
+if test "x$ac_cv_lib_crypto_ERR_load_BIO_strings" = xyes
+then :
   libcrypto_present=1 && LIBS="-lcrypto $LIBS"
 fi
 
-		    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for SSL_CTX_new in -lssl" >&5
-$as_echo_n "checking for SSL_CTX_new in -lssl... " >&6; }
-if ${ac_cv_lib_ssl_SSL_CTX_new+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+		    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for SSL_CTX_new in -lssl" >&5
+printf %s "checking for SSL_CTX_new in -lssl... " >&6; }
+if test ${ac_cv_lib_ssl_SSL_CTX_new+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lssl  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8191,13 +9086,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char SSL_CTX_new ();
+char SSL_CTX_new (void);
 int
-main ()
+main (void)
 {
 return SSL_CTX_new ();
   ;
@@ -8204,24 +9102,28 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_ssl_SSL_CTX_new=yes
-else
-  ac_cv_lib_ssl_SSL_CTX_new=no
+else case e in #(
+  e) ac_cv_lib_ssl_SSL_CTX_new=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ssl_SSL_CTX_new" >&5
-$as_echo "$ac_cv_lib_ssl_SSL_CTX_new" >&6; }
-if test "x$ac_cv_lib_ssl_SSL_CTX_new" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ssl_SSL_CTX_new" >&5
+printf "%s\n" "$ac_cv_lib_ssl_SSL_CTX_new" >&6; }
+if test "x$ac_cv_lib_ssl_SSL_CTX_new" = xyes
+then :
   libssl_present=1 && LIBS="-lssl $LIBS"
 fi
 
 		    if test "x$openssl_h_present" = "x1" -a "x$libssl_present" = "x1" -a "x$libcrypto_present" = "x1"; then
-	        	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: OpenSSL library found, SSL support enabled" >&5
-$as_echo "OpenSSL library found, SSL support enabled" >&6; }
+	        	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: OpenSSL library found, SSL support enabled" >&5
+printf "%s\n" "OpenSSL library found, SSL support enabled" >&6; }
 
 			# Check if SRTP should be compiled with OpenSSL
 			# support, to enable cryptos such as AES GCM.
@@ -8233,7 +9135,7 @@
 /* end confdefs.h.  */
 #include <openssl/evp.h>
 int
-main ()
+main (void)
 {
 EVP_CIPHER_CTX *ctx;EVP_aes_128_gcm();
   ;
@@ -8240,13 +9142,15 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for EVP_aes_128_gcm in -lcrypto" >&5
-$as_echo_n "checking for EVP_aes_128_gcm in -lcrypto... " >&6; }
-if ${ac_cv_lib_crypto_EVP_aes_128_gcm+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+if ac_fn_c_try_compile "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for EVP_aes_128_gcm in -lcrypto" >&5
+printf %s "checking for EVP_aes_128_gcm in -lcrypto... " >&6; }
+if test ${ac_cv_lib_crypto_EVP_aes_128_gcm+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lcrypto  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8253,13 +9157,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char EVP_aes_128_gcm ();
+char EVP_aes_128_gcm (void);
 int
-main ()
+main (void)
 {
 return EVP_aes_128_gcm ();
   ;
@@ -8266,43 +9173,47 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_crypto_EVP_aes_128_gcm=yes
-else
-  ac_cv_lib_crypto_EVP_aes_128_gcm=no
+else case e in #(
+  e) ac_cv_lib_crypto_EVP_aes_128_gcm=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_crypto_EVP_aes_128_gcm" >&5
-$as_echo "$ac_cv_lib_crypto_EVP_aes_128_gcm" >&6; }
-if test "x$ac_cv_lib_crypto_EVP_aes_128_gcm" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_crypto_EVP_aes_128_gcm" >&5
+printf "%s\n" "$ac_cv_lib_crypto_EVP_aes_128_gcm" >&6; }
+if test "x$ac_cv_lib_crypto_EVP_aes_128_gcm" = xyes
+then :
   ac_ssl_has_aes_gcm=1
 fi
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 			if test "x$ac_ssl_has_aes_gcm" = "x1"; then
-				{ $as_echo "$as_me:${as_lineno-$LINENO}: result: OpenSSL has AES GCM support, SRTP will use OpenSSL" >&5
-$as_echo "OpenSSL has AES GCM support, SRTP will use OpenSSL" >&6; }
+				{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: OpenSSL has AES GCM support, SRTP will use OpenSSL" >&5
+printf "%s\n" "OpenSSL has AES GCM support, SRTP will use OpenSSL" >&6; }
 			else
-				{ $as_echo "$as_me:${as_lineno-$LINENO}: result: OpenSSL AES GCM support not found, SRTP will only support AES CM cryptos" >&5
-$as_echo "OpenSSL AES GCM support not found, SRTP will only support AES CM cryptos" >&6; }
+				{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: OpenSSL AES GCM support not found, SRTP will only support AES CM cryptos" >&5
+printf "%s\n" "OpenSSL AES GCM support not found, SRTP will only support AES CM cryptos" >&6; }
 			fi
 
     		        if test "x$ac_ssl_backend" = "x"; then
 			    # PJSIP_HAS_TLS_TRANSPORT setting follows PJ_HAS_SSL_SOCK
 			    #AC_DEFINE(PJSIP_HAS_TLS_TRANSPORT, 1)
-			    $as_echo "#define PJ_HAS_SSL_SOCK 1" >>confdefs.h
+			    printf "%s\n" "#define PJ_HAS_SSL_SOCK 1" >>confdefs.h
 
-			    $as_echo "#define PJ_SSL_SOCK_IMP PJ_SSL_SOCK_IMP_OPENSSL" >>confdefs.h
+			    printf "%s\n" "#define PJ_SSL_SOCK_IMP PJ_SSL_SOCK_IMP_OPENSSL" >>confdefs.h
 
 			    ac_ssl_backend="openssl"
 			fi
 		    else
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ** OpenSSL libraries not found **" >&5
-$as_echo "** OpenSSL libraries not found **" >&6; }
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ** OpenSSL libraries not found **" >&5
+printf "%s\n" "** OpenSSL libraries not found **" >&6; }
 		    fi
 
 		fi
@@ -8312,8 +9223,8 @@
 		    if test "x$with_gnutls" != "xno" -a "x$with_gnutls" != "x"; then
         	        CFLAGS="$CFLAGS -I$with_gnutls/include"
         	        LDFLAGS="$LDFLAGS -L$with_gnutls/lib"
-        	        { $as_echo "$as_me:${as_lineno-$LINENO}: result: Using GnuTLS prefix... $with_gnutls" >&5
-$as_echo "Using GnuTLS prefix... $with_gnutls" >&6; }
+        	        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Using GnuTLS prefix... $with_gnutls" >&5
+printf "%s\n" "Using GnuTLS prefix... $with_gnutls" >&6; }
     		    fi
 
         	    for ac_prog in $host-pkg-config pkg-config "python pkgconfig.py"
@@ -8320,12 +9231,13 @@
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_PKG_CONFIG+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$PKG_CONFIG"; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_PKG_CONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$PKG_CONFIG"; then
   ac_cv_prog_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -8332,11 +9244,15 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_PKG_CONFIG="$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -8343,15 +9259,16 @@
   done
 IFS=$as_save_IFS
 
+fi ;;
+esac
 fi
-fi
 PKG_CONFIG=$ac_cv_prog_PKG_CONFIG
 if test -n "$PKG_CONFIG"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
-$as_echo "$PKG_CONFIG" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
+printf "%s\n" "$PKG_CONFIG" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -8359,28 +9276,29 @@
 done
 test -n "$PKG_CONFIG" || PKG_CONFIG="none"
 
-        	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: checking for GnuTLS installations.." >&5
-$as_echo "checking for GnuTLS installations.." >&6; }
+        	    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: checking for GnuTLS installations.." >&5
+printf "%s\n" "checking for GnuTLS installations.." >&6; }
 
 
-        	    ac_fn_c_check_header_mongrel "$LINENO" "gnutls/gnutls.h" "ac_cv_header_gnutls_gnutls_h" "$ac_includes_default"
-if test "x$ac_cv_header_gnutls_gnutls_h" = xyes; then :
+        	    ac_fn_c_check_header_compile "$LINENO" "gnutls/gnutls.h" "ac_cv_header_gnutls_gnutls_h" "$ac_includes_default"
+if test "x$ac_cv_header_gnutls_gnutls_h" = xyes
+then :
   gnutls_h_present=1
 fi
 
 
-
         	    if test "$PKG_CONFIG" != "none"; then
             	    	if $PKG_CONFIG --exists gnutls; then
                 	    LIBS="$LIBS `$PKG_CONFIG --libs gnutls`"
                 	    libgnutls_present=1
             		else
-                	    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gnutls_certificate_set_x509_system_trust in -lgnutls" >&5
-$as_echo_n "checking for gnutls_certificate_set_x509_system_trust in -lgnutls... " >&6; }
-if ${ac_cv_lib_gnutls_gnutls_certificate_set_x509_system_trust+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+                	    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gnutls_certificate_set_x509_system_trust in -lgnutls" >&5
+printf %s "checking for gnutls_certificate_set_x509_system_trust in -lgnutls... " >&6; }
+if test ${ac_cv_lib_gnutls_gnutls_certificate_set_x509_system_trust+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lgnutls  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8387,13 +9305,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char gnutls_certificate_set_x509_system_trust ();
+char gnutls_certificate_set_x509_system_trust (void);
 int
-main ()
+main (void)
 {
 return gnutls_certificate_set_x509_system_trust ();
   ;
@@ -8400,18 +9321,22 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_gnutls_gnutls_certificate_set_x509_system_trust=yes
-else
-  ac_cv_lib_gnutls_gnutls_certificate_set_x509_system_trust=no
+else case e in #(
+  e) ac_cv_lib_gnutls_gnutls_certificate_set_x509_system_trust=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gnutls_gnutls_certificate_set_x509_system_trust" >&5
-$as_echo "$ac_cv_lib_gnutls_gnutls_certificate_set_x509_system_trust" >&6; }
-if test "x$ac_cv_lib_gnutls_gnutls_certificate_set_x509_system_trust" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gnutls_gnutls_certificate_set_x509_system_trust" >&5
+printf "%s\n" "$ac_cv_lib_gnutls_gnutls_certificate_set_x509_system_trust" >&6; }
+if test "x$ac_cv_lib_gnutls_gnutls_certificate_set_x509_system_trust" = xyes
+then :
   libgnutls_present=1 &&
                               LIBS="$LIBS -lgnutls"
 fi
@@ -8418,45 +9343,50 @@
 
             		fi
         	    else
-            		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: *** Warning: neither pkg-config nor python is available, disabling gnutls. ***" >&5
-$as_echo "*** Warning: neither pkg-config nor python is available, disabling gnutls. ***" >&6; }
+            		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: *** Warning: neither pkg-config nor python is available, disabling gnutls. ***" >&5
+printf "%s\n" "*** Warning: neither pkg-config nor python is available, disabling gnutls. ***" >&6; }
         	    fi
 
         	    if test "x$gnutls_h_present" = "x1" -a "x$libgnutls_present" = "x1"; then
-           		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: GnuTLS library found, SSL support enabled" >&5
-$as_echo "GnuTLS library found, SSL support enabled" >&6; }
-			$as_echo "#define PJ_HAS_SSL_SOCK 1" >>confdefs.h
+           		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: GnuTLS library found, SSL support enabled" >&5
+printf "%s\n" "GnuTLS library found, SSL support enabled" >&6; }
+			printf "%s\n" "#define PJ_HAS_SSL_SOCK 1" >>confdefs.h
 
-			$as_echo "#define PJ_SSL_SOCK_IMP PJ_SSL_SOCK_IMP_GNUTLS" >>confdefs.h
+			printf "%s\n" "#define PJ_SSL_SOCK_IMP PJ_SSL_SOCK_IMP_GNUTLS" >>confdefs.h
 
             		ac_ssl_backend="gnutls"
         	    else
-            		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ** No GnuTLS libraries found, disabling SSL support **" >&5
-$as_echo "** No GnuTLS libraries found, disabling SSL support **" >&6; }
+            		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ** No GnuTLS libraries found, disabling SSL support **" >&5
+printf "%s\n" "** No GnuTLS libraries found, disabling SSL support **" >&6; }
         	    fi
 
         	fi
-
+	       ;;
+esac
 fi
 
 
 
 # Check whether --with-opencore-amrnb was given.
-if test "${with_opencore_amrnb+set}" = set; then :
+if test ${with_opencore_amrnb+y}
+then :
   withval=$with_opencore_amrnb; as_fn_error $? "This option is obsolete and replaced by --with-opencore-amr=DIR" "$LINENO" 5
-else
-  true;
-
+else case e in #(
+  e) true;
+     ;;
+esac
 fi
 
 
 
 # Check whether --with-opencore-amr was given.
-if test "${with_opencore_amr+set}" = set; then :
+if test ${with_opencore_amr+y}
+then :
   withval=$with_opencore_amr;
-else
-  with_opencore_amr=no
-
+else case e in #(
+  e) with_opencore_amr=no
+     ;;
+esac
 fi
 
 
@@ -8466,11 +9396,13 @@
 
 
 # Check whether --with-opencore-amrwbenc was given.
-if test "${with_opencore_amrwbenc+set}" = set; then :
+if test ${with_opencore_amrwbenc+y}
+then :
   withval=$with_opencore_amrwbenc;
-else
-  with_opencore_amrwbenc=no
-
+else case e in #(
+  e) with_opencore_amrwbenc=no
+     ;;
+esac
 fi
 
 
@@ -8482,51 +9414,53 @@
 
 
 # Check whether --enable-opencore_amr was given.
-if test "${enable_opencore_amr+set}" = set; then :
+if test ${enable_opencore_amr+y}
+then :
   enableval=$enable_opencore_amr;
 		if test "$enable_opencore_amr" = "no"; then
 		 ac_no_opencore_amrnb=1
 		 ac_no_opencore_amrwb=1
-		 $as_echo "#define PJMEDIA_HAS_OPENCORE_AMRNB_CODEC 0" >>confdefs.h
+		 printf "%s\n" "#define PJMEDIA_HAS_OPENCORE_AMRNB_CODEC 0" >>confdefs.h
 
-		 $as_echo "#define PJMEDIA_HAS_OPENCORE_AMRWB_CODEC 0" >>confdefs.h
+		 printf "%s\n" "#define PJMEDIA_HAS_OPENCORE_AMRWB_CODEC 0" >>confdefs.h
 
-		 { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if OpenCORE AMR support is disabled... yes" >&5
-$as_echo "Checking if OpenCORE AMR support is disabled... yes" >&6; }
+		 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if OpenCORE AMR support is disabled... yes" >&5
+printf "%s\n" "Checking if OpenCORE AMR support is disabled... yes" >&6; }
 	        fi
 
-else
-
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: checking for OpenCORE AMR installations.." >&5
-$as_echo "checking for OpenCORE AMR installations.." >&6; }
+else case e in #(
+  e)
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: checking for OpenCORE AMR installations.." >&5
+printf "%s\n" "checking for OpenCORE AMR installations.." >&6; }
                 if test "x$with_opencore_amr" != "xno" -a "x$with_opencore_amr" != "x"; then
                     CFLAGS="$CFLAGS -I$with_opencore_amr/include"
                     CPPFLAGS="$CPPFLAGS -I$with_opencore_amr/include"
                     LDFLAGS="$LDFLAGS -L$with_opencore_amr/lib"
-                    { $as_echo "$as_me:${as_lineno-$LINENO}: result: Using OpenCORE AMR prefix... $with_opencore_amr" >&5
-$as_echo "Using OpenCORE AMR prefix... $with_opencore_amr" >&6; }
+                    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Using OpenCORE AMR prefix... $with_opencore_amr" >&5
+printf "%s\n" "Using OpenCORE AMR prefix... $with_opencore_amr" >&6; }
                 fi
                 if test "x$with_opencore_amrwbenc" != "xno" -a "x$with_opencore_amrwbenc" != "x"; then
                     CFLAGS="$CFLAGS -I$with_opencore_amrwbenc/include"
                     CPPFLAGS="$CPPFLAGS -I$with_opencore_amrwbenc/include"
                     LDFLAGS="$LDFLAGS -L$with_opencore_amrwbenc/lib"
-                    { $as_echo "$as_me:${as_lineno-$LINENO}: result: Using OpenCORE AMRWB-enc prefix... $with_opencore_amrwbenc" >&5
-$as_echo "Using OpenCORE AMRWB-enc prefix... $with_opencore_amrwbenc" >&6; }
+                    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Using OpenCORE AMRWB-enc prefix... $with_opencore_amrwbenc" >&5
+printf "%s\n" "Using OpenCORE AMRWB-enc prefix... $with_opencore_amrwbenc" >&6; }
                 fi
 
 
-		ac_fn_c_check_header_mongrel "$LINENO" "opencore-amrnb/interf_enc.h" "ac_cv_header_opencore_amrnb_interf_enc_h" "$ac_includes_default"
-if test "x$ac_cv_header_opencore_amrnb_interf_enc_h" = xyes; then :
+		ac_fn_c_check_header_compile "$LINENO" "opencore-amrnb/interf_enc.h" "ac_cv_header_opencore_amrnb_interf_enc_h" "$ac_includes_default"
+if test "x$ac_cv_header_opencore_amrnb_interf_enc_h" = xyes
+then :
   opencore_amrnb_h_present=1
 fi
 
-
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for Encoder_Interface_init in -lopencore-amrnb" >&5
-$as_echo_n "checking for Encoder_Interface_init in -lopencore-amrnb... " >&6; }
-if ${ac_cv_lib_opencore_amrnb_Encoder_Interface_init+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Encoder_Interface_init in -lopencore-amrnb" >&5
+printf %s "checking for Encoder_Interface_init in -lopencore-amrnb... " >&6; }
+if test ${ac_cv_lib_opencore_amrnb_Encoder_Interface_init+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lopencore-amrnb  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8533,13 +9467,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char Encoder_Interface_init ();
+char Encoder_Interface_init (void);
 int
-main ()
+main (void)
 {
 return Encoder_Interface_init ();
   ;
@@ -8546,29 +9483,33 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_opencore_amrnb_Encoder_Interface_init=yes
-else
-  ac_cv_lib_opencore_amrnb_Encoder_Interface_init=no
+else case e in #(
+  e) ac_cv_lib_opencore_amrnb_Encoder_Interface_init=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_opencore_amrnb_Encoder_Interface_init" >&5
-$as_echo "$ac_cv_lib_opencore_amrnb_Encoder_Interface_init" >&6; }
-if test "x$ac_cv_lib_opencore_amrnb_Encoder_Interface_init" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_opencore_amrnb_Encoder_Interface_init" >&5
+printf "%s\n" "$ac_cv_lib_opencore_amrnb_Encoder_Interface_init" >&6; }
+if test "x$ac_cv_lib_opencore_amrnb_Encoder_Interface_init" = xyes
+then :
   opencore_amrnb_present=1 && LIBS="$LIBS -lopencore-amrnb"
 fi
 
 		if test "x$opencore_amrnb_h_present" = "x1" -a "x$opencore_amrnb_present" = "x1"; then
-	        	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: OpenCORE AMR-NB library found, AMR-NB support enabled" >&5
-$as_echo "OpenCORE AMR-NB library found, AMR-NB support enabled" >&6; }
-	        	$as_echo "#define PJMEDIA_HAS_OPENCORE_AMRNB_CODEC 1" >>confdefs.h
+	        	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: OpenCORE AMR-NB library found, AMR-NB support enabled" >&5
+printf "%s\n" "OpenCORE AMR-NB library found, AMR-NB support enabled" >&6; }
+	        	printf "%s\n" "#define PJMEDIA_HAS_OPENCORE_AMRNB_CODEC 1" >>confdefs.h
 
 		else
 			ac_no_opencore_amrnb=1
-			$as_echo "#define PJMEDIA_HAS_OPENCORE_AMRNB_CODEC 0" >>confdefs.h
+			printf "%s\n" "#define PJMEDIA_HAS_OPENCORE_AMRNB_CODEC 0" >>confdefs.h
 
 		fi
 
@@ -8575,24 +9516,25 @@
 
 
 
-		ac_fn_c_check_header_mongrel "$LINENO" "vo-amrwbenc/enc_if.h" "ac_cv_header_vo_amrwbenc_enc_if_h" "$ac_includes_default"
-if test "x$ac_cv_header_vo_amrwbenc_enc_if_h" = xyes; then :
+		ac_fn_c_check_header_compile "$LINENO" "vo-amrwbenc/enc_if.h" "ac_cv_header_vo_amrwbenc_enc_if_h" "$ac_includes_default"
+if test "x$ac_cv_header_vo_amrwbenc_enc_if_h" = xyes
+then :
   opencore_amrwb_enc_h_present=1
 fi
 
-
-		ac_fn_c_check_header_mongrel "$LINENO" "opencore-amrwb/dec_if.h" "ac_cv_header_opencore_amrwb_dec_if_h" "$ac_includes_default"
-if test "x$ac_cv_header_opencore_amrwb_dec_if_h" = xyes; then :
+		ac_fn_c_check_header_compile "$LINENO" "opencore-amrwb/dec_if.h" "ac_cv_header_opencore_amrwb_dec_if_h" "$ac_includes_default"
+if test "x$ac_cv_header_opencore_amrwb_dec_if_h" = xyes
+then :
   opencore_amrwb_dec_h_present=1
 fi
 
-
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for D_IF_init in -lopencore-amrwb" >&5
-$as_echo_n "checking for D_IF_init in -lopencore-amrwb... " >&6; }
-if ${ac_cv_lib_opencore_amrwb_D_IF_init+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for D_IF_init in -lopencore-amrwb" >&5
+printf %s "checking for D_IF_init in -lopencore-amrwb... " >&6; }
+if test ${ac_cv_lib_opencore_amrwb_D_IF_init+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lopencore-amrwb  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8599,13 +9541,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char D_IF_init ();
+char D_IF_init (void);
 int
-main ()
+main (void)
 {
 return D_IF_init ();
   ;
@@ -8612,27 +9557,32 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_opencore_amrwb_D_IF_init=yes
-else
-  ac_cv_lib_opencore_amrwb_D_IF_init=no
+else case e in #(
+  e) ac_cv_lib_opencore_amrwb_D_IF_init=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_opencore_amrwb_D_IF_init" >&5
-$as_echo "$ac_cv_lib_opencore_amrwb_D_IF_init" >&6; }
-if test "x$ac_cv_lib_opencore_amrwb_D_IF_init" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_opencore_amrwb_D_IF_init" >&5
+printf "%s\n" "$ac_cv_lib_opencore_amrwb_D_IF_init" >&6; }
+if test "x$ac_cv_lib_opencore_amrwb_D_IF_init" = xyes
+then :
   opencore_amrwb_dec_present=1 && LIBS="$LIBS -lopencore-amrwb"
 fi
 
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for E_IF_init in -lvo-amrwbenc" >&5
-$as_echo_n "checking for E_IF_init in -lvo-amrwbenc... " >&6; }
-if ${ac_cv_lib_vo_amrwbenc_E_IF_init+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for E_IF_init in -lvo-amrwbenc" >&5
+printf %s "checking for E_IF_init in -lvo-amrwbenc... " >&6; }
+if test ${ac_cv_lib_vo_amrwbenc_E_IF_init+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lvo-amrwbenc  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8639,13 +9589,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char E_IF_init ();
+char E_IF_init (void);
 int
-main ()
+main (void)
 {
 return E_IF_init ();
   ;
@@ -8652,43 +9605,50 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_vo_amrwbenc_E_IF_init=yes
-else
-  ac_cv_lib_vo_amrwbenc_E_IF_init=no
+else case e in #(
+  e) ac_cv_lib_vo_amrwbenc_E_IF_init=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_vo_amrwbenc_E_IF_init" >&5
-$as_echo "$ac_cv_lib_vo_amrwbenc_E_IF_init" >&6; }
-if test "x$ac_cv_lib_vo_amrwbenc_E_IF_init" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_vo_amrwbenc_E_IF_init" >&5
+printf "%s\n" "$ac_cv_lib_vo_amrwbenc_E_IF_init" >&6; }
+if test "x$ac_cv_lib_vo_amrwbenc_E_IF_init" = xyes
+then :
   opencore_amrwb_enc_present=1 && LIBS="$LIBS -lvo-amrwbenc"
 fi
 
 		if test "x$opencore_amrwb_enc_h_present" = "x1" -a "x$opencore_amrwb_dec_h_present" = "x1" -a "x$opencore_amrwb_enc_present" = "x1" -a "x$opencore_amrwb_dec_present" = "x1"; then
-	        	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: OpenCORE AMR-WB library found, AMR-WB support enabled" >&5
-$as_echo "OpenCORE AMR-WB library found, AMR-WB support enabled" >&6; }
-	        	$as_echo "#define PJMEDIA_HAS_OPENCORE_AMRWB_CODEC 1" >>confdefs.h
+	        	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: OpenCORE AMR-WB library found, AMR-WB support enabled" >&5
+printf "%s\n" "OpenCORE AMR-WB library found, AMR-WB support enabled" >&6; }
+	        	printf "%s\n" "#define PJMEDIA_HAS_OPENCORE_AMRWB_CODEC 1" >>confdefs.h
 
 		else
 			ac_no_opencore_amrwb=1
-			$as_echo "#define PJMEDIA_HAS_OPENCORE_AMRWB_CODEC 0" >>confdefs.h
+			printf "%s\n" "#define PJMEDIA_HAS_OPENCORE_AMRWB_CODEC 0" >>confdefs.h
 
 		fi
 
-
+	       ;;
+esac
 fi
 
 
 
 # Check whether --with-silk was given.
-if test "${with_silk+set}" = set; then :
+if test ${with_silk+y}
+then :
   withval=$with_silk;
-else
-  with_silk=no
-
+else case e in #(
+  e) with_silk=no
+     ;;
+esac
 fi
 
 
@@ -8698,41 +9658,43 @@
 
 
 # Check whether --enable-silk was given.
-if test "${enable_silk+set}" = set; then :
+if test ${enable_silk+y}
+then :
   enableval=$enable_silk;
 		if test "$enable_silk" = "no"; then
 		 ac_no_silk=1
-		 $as_echo "#define PJMEDIA_HAS_SILK_CODEC 0" >>confdefs.h
+		 printf "%s\n" "#define PJMEDIA_HAS_SILK_CODEC 0" >>confdefs.h
 
-		 { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if SILK support is disabled... yes" >&5
-$as_echo "Checking if SILK support is disabled... yes" >&6; }
+		 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if SILK support is disabled... yes" >&5
+printf "%s\n" "Checking if SILK support is disabled... yes" >&6; }
 	        fi
 
-else
-
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: checking for SILK installations.." >&5
-$as_echo "checking for SILK installations.." >&6; }
+else case e in #(
+  e)
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: checking for SILK installations.." >&5
+printf "%s\n" "checking for SILK installations.." >&6; }
                 if test "x$with_silk" != "xno" -a "x$with_silk" != "x"; then
                     CFLAGS="$CFLAGS -I$with_silk/interface"
                     CPPFLAGS="$CPPFLAGS -I$with_silk/interface"
                     LDFLAGS="$LDFLAGS -L$with_silk"
-                    { $as_echo "$as_me:${as_lineno-$LINENO}: result: Using SILK prefix... $with_silk" >&5
-$as_echo "Using SILK prefix... $with_silk" >&6; }
+                    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Using SILK prefix... $with_silk" >&5
+printf "%s\n" "Using SILK prefix... $with_silk" >&6; }
                 fi
 
 
-		ac_fn_c_check_header_mongrel "$LINENO" "SKP_Silk_SDK_API.h" "ac_cv_header_SKP_Silk_SDK_API_h" "$ac_includes_default"
-if test "x$ac_cv_header_SKP_Silk_SDK_API_h" = xyes; then :
+		ac_fn_c_check_header_compile "$LINENO" "SKP_Silk_SDK_API.h" "ac_cv_header_SKP_Silk_SDK_API_h" "$ac_includes_default"
+if test "x$ac_cv_header_SKP_Silk_SDK_API_h" = xyes
+then :
   silk_h_present=1
 fi
 
-
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SKP_Silk_SDK_get_version in -lSKP_SILK_SDK" >&5
-$as_echo_n "checking for SKP_Silk_SDK_get_version in -lSKP_SILK_SDK... " >&6; }
-if ${ac_cv_lib_SKP_SILK_SDK_SKP_Silk_SDK_get_version+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for SKP_Silk_SDK_get_version in -lSKP_SILK_SDK" >&5
+printf %s "checking for SKP_Silk_SDK_get_version in -lSKP_SILK_SDK... " >&6; }
+if test ${ac_cv_lib_SKP_SILK_SDK_SKP_Silk_SDK_get_version+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lSKP_SILK_SDK  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8739,13 +9701,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char SKP_Silk_SDK_get_version ();
+char SKP_Silk_SDK_get_version (void);
 int
-main ()
+main (void)
 {
 return SKP_Silk_SDK_get_version ();
   ;
@@ -8752,32 +9717,37 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_SKP_SILK_SDK_SKP_Silk_SDK_get_version=yes
-else
-  ac_cv_lib_SKP_SILK_SDK_SKP_Silk_SDK_get_version=no
+else case e in #(
+  e) ac_cv_lib_SKP_SILK_SDK_SKP_Silk_SDK_get_version=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_SKP_SILK_SDK_SKP_Silk_SDK_get_version" >&5
-$as_echo "$ac_cv_lib_SKP_SILK_SDK_SKP_Silk_SDK_get_version" >&6; }
-if test "x$ac_cv_lib_SKP_SILK_SDK_SKP_Silk_SDK_get_version" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_SKP_SILK_SDK_SKP_Silk_SDK_get_version" >&5
+printf "%s\n" "$ac_cv_lib_SKP_SILK_SDK_SKP_Silk_SDK_get_version" >&6; }
+if test "x$ac_cv_lib_SKP_SILK_SDK_SKP_Silk_SDK_get_version" = xyes
+then :
   silk_present=1 && LIBS="$LIBS -lSKP_SILK_SDK"
 fi
 
 		if test "x$silk_h_present" = "x1" -a "x$silk_present" = "x1"; then
-	        	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: SILK library found, SILK support enabled" >&5
-$as_echo "SILK library found, SILK support enabled" >&6; }
-	        	$as_echo "#define PJMEDIA_HAS_SILK_CODEC 1" >>confdefs.h
+	        	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: SILK library found, SILK support enabled" >&5
+printf "%s\n" "SILK library found, SILK support enabled" >&6; }
+	        	printf "%s\n" "#define PJMEDIA_HAS_SILK_CODEC 1" >>confdefs.h
 
 		else
 			ac_no_silk=1
-			$as_echo "#define PJMEDIA_HAS_SILK_CODEC 0" >>confdefs.h
+			printf "%s\n" "#define PJMEDIA_HAS_SILK_CODEC 0" >>confdefs.h
 
 		fi
-
+	       ;;
+esac
 fi
 
 
@@ -8787,51 +9757,55 @@
 
 
 # Check whether --with-opus was given.
-if test "${with_opus+set}" = set; then :
+if test ${with_opus+y}
+then :
   withval=$with_opus;
-else
-  with_opus=no
-
+else case e in #(
+  e) with_opus=no
+     ;;
+esac
 fi
 
 
 
 # Check whether --enable-opus was given.
-if test "${enable_opus+set}" = set; then :
+if test ${enable_opus+y}
+then :
   enableval=$enable_opus;
 		if test "$enable_opus" = "no"; then
 		 ac_no_opus=1
-		 $as_echo "#define PJMEDIA_HAS_OPUS_CODEC 0" >>confdefs.h
+		 printf "%s\n" "#define PJMEDIA_HAS_OPUS_CODEC 0" >>confdefs.h
 
-		 { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if OPUS support is disabled... yes" >&5
-$as_echo "Checking if OPUS support is disabled... yes" >&6; }
+		 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if OPUS support is disabled... yes" >&5
+printf "%s\n" "Checking if OPUS support is disabled... yes" >&6; }
 	        fi
 
-else
-
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: checking for OPUS installations.." >&5
-$as_echo "checking for OPUS installations.." >&6; }
+else case e in #(
+  e)
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: checking for OPUS installations.." >&5
+printf "%s\n" "checking for OPUS installations.." >&6; }
                 if test "x$with_opus" != "xno" -a "x$with_opus" != "x"; then
                     CFLAGS="$CFLAGS -I$with_opus/include"
                     CPPFLAGS="$CPPFLAGS -I$with_opus/include"
                     LDFLAGS="$LDFLAGS -L$with_opus/lib"
-                    { $as_echo "$as_me:${as_lineno-$LINENO}: result: Using OPUS prefix... $with_opus" >&5
-$as_echo "Using OPUS prefix... $with_opus" >&6; }
+                    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Using OPUS prefix... $with_opus" >&5
+printf "%s\n" "Using OPUS prefix... $with_opus" >&6; }
                 fi
 
 
-		ac_fn_c_check_header_mongrel "$LINENO" "opus/opus.h" "ac_cv_header_opus_opus_h" "$ac_includes_default"
-if test "x$ac_cv_header_opus_opus_h" = xyes; then :
+		ac_fn_c_check_header_compile "$LINENO" "opus/opus.h" "ac_cv_header_opus_opus_h" "$ac_includes_default"
+if test "x$ac_cv_header_opus_opus_h" = xyes
+then :
   opus_h_present=1
 fi
 
-
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for opus_repacketizer_get_size in -lopus" >&5
-$as_echo_n "checking for opus_repacketizer_get_size in -lopus... " >&6; }
-if ${ac_cv_lib_opus_opus_repacketizer_get_size+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for opus_repacketizer_get_size in -lopus" >&5
+printf %s "checking for opus_repacketizer_get_size in -lopus... " >&6; }
+if test ${ac_cv_lib_opus_opus_repacketizer_get_size+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lopus  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8838,13 +9812,16 @@
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
 #ifdef __cplusplus
 extern "C"
 #endif
-char opus_repacketizer_get_size ();
+char opus_repacketizer_get_size (void);
 int
-main ()
+main (void)
 {
 return opus_repacketizer_get_size ();
   ;
@@ -8851,44 +9828,51 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_opus_opus_repacketizer_get_size=yes
-else
-  ac_cv_lib_opus_opus_repacketizer_get_size=no
+else case e in #(
+  e) ac_cv_lib_opus_opus_repacketizer_get_size=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_opus_opus_repacketizer_get_size" >&5
-$as_echo "$ac_cv_lib_opus_opus_repacketizer_get_size" >&6; }
-if test "x$ac_cv_lib_opus_opus_repacketizer_get_size" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_opus_opus_repacketizer_get_size" >&5
+printf "%s\n" "$ac_cv_lib_opus_opus_repacketizer_get_size" >&6; }
+if test "x$ac_cv_lib_opus_opus_repacketizer_get_size" = xyes
+then :
   opus_present=1 && LIBS="-lopus $LIBS"
 fi
 
 		if test "x$opus_h_present" = "x1" -a "x$opus_present" = "x1"; then
-	        	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: OPUS library found, OPUS support enabled" >&5
-$as_echo "OPUS library found, OPUS support enabled" >&6; }
-	        	$as_echo "#define PJMEDIA_HAS_OPUS_CODEC 1" >>confdefs.h
+	        	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: OPUS library found, OPUS support enabled" >&5
+printf "%s\n" "OPUS library found, OPUS support enabled" >&6; }
+	        	printf "%s\n" "#define PJMEDIA_HAS_OPUS_CODEC 1" >>confdefs.h
 
 		else
 			ac_no_opus=1
-	        	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: OPUS library not found, OPUS support disabled" >&5
-$as_echo "OPUS library not found, OPUS support disabled" >&6; }
-			$as_echo "#define PJMEDIA_HAS_OPUS_CODEC 0" >>confdefs.h
+	        	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: OPUS library not found, OPUS support disabled" >&5
+printf "%s\n" "OPUS library not found, OPUS support disabled" >&6; }
+			printf "%s\n" "#define PJMEDIA_HAS_OPUS_CODEC 0" >>confdefs.h
 
 		fi
-
+	       ;;
+esac
 fi
 
 
 
 # Check whether --with-bcg729 was given.
-if test "${with_bcg729+set}" = set; then :
+if test ${with_bcg729+y}
+then :
   withval=$with_bcg729;
-else
-  with_bcg729=no
-
+else case e in #(
+  e) with_bcg729=no
+             ;;
+esac
 fi
 
 
@@ -8898,31 +9882,32 @@
 
 
 # Check whether --enable-bcg729 was given.
-if test "${enable_bcg729+set}" = set; then :
+if test ${enable_bcg729+y}
+then :
   enableval=$enable_bcg729;
 		if test "$enable_bcg729" = "no"; then
 		  ac_no_bcg729=1
-		  $as_echo "#define PJMEDIA_HAS_BCG729 0" >>confdefs.h
+		  printf "%s\n" "#define PJMEDIA_HAS_BCG729 0" >>confdefs.h
 
-		  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if bcg729 is disabled... yes" >&5
-$as_echo "Checking if bcg729 is disabled... yes" >&6; }
+		  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if bcg729 is disabled... yes" >&5
+printf "%s\n" "Checking if bcg729 is disabled... yes" >&6; }
 		fi
 
-else
-
+else case e in #(
+  e)
 		  if test "x$with_bcg729" != "xno" -a "x$with_bcg729" != "x"; then
 		        BCG729_PREFIX=$with_bcg729
 		  	BCG729_CFLAGS="-I$BCG729_PREFIX/include"
 			BCG729_LDFLAGS="-L$BCG729_PREFIX/lib"
-			{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Using bcg729 prefix... $with_bcg729" >&5
-$as_echo "Using bcg729 prefix... $with_bcg729" >&6; }
+			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Using bcg729 prefix... $with_bcg729" >&5
+printf "%s\n" "Using bcg729 prefix... $with_bcg729" >&6; }
 		  else
 		  	BCG729_CFLAGS=""
 			BCG729_LDFLAGS=""
 		  fi
 
-		  { $as_echo "$as_me:${as_lineno-$LINENO}: checking bcg729 usability" >&5
-$as_echo_n "checking bcg729 usability... " >&6; }
+		  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking bcg729 usability" >&5
+printf %s "checking bcg729 usability... " >&6; }
 
 		  BCG729_LIBS="-lbcg729"
 
@@ -8940,7 +9925,7 @@
 		                                    #include <bcg729/decoder.h>
 
 int
-main ()
+main (void)
 {
 initBcg729EncoderChannel(0);
 
@@ -8948,29 +9933,32 @@
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
 
-				   $as_echo "#define PJMEDIA_HAS_BCG729 1" >>confdefs.h
+				   printf "%s\n" "#define PJMEDIA_HAS_BCG729 1" >>confdefs.h
 
-		  		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
-$as_echo "ok" >&6; }
+		  		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+printf "%s\n" "ok" >&6; }
 
-else
-
+else case e in #(
+  e)
 				   ac_no_bcg729=1
-				   $as_echo "#define PJMEDIA_HAS_BCG729 0" >>confdefs.h
+				   printf "%s\n" "#define PJMEDIA_HAS_BCG729 0" >>confdefs.h
 
 				   LIBS="$SAVED_LIBS"
 				   LDFLAGS="$SAVED_LDFLAGS"
 				   CFLAGS="$SAVED_CFLAGS"
-		  		   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-
+		  		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+		  		  ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 
-
+	       ;;
+esac
 fi
 
 
@@ -8977,17 +9965,19 @@
 
 
 # Check whether --enable-libyuv was given.
-if test "${enable_libyuv+set}" = set; then :
+if test ${enable_libyuv+y}
+then :
   enableval=$enable_libyuv; if test "$enable_libyuv" = "no"; then
 		ac_no_yuv=1
-		$as_echo "#define PJMEDIA_HAS_LIBYUV 0" >>confdefs.h
+		printf "%s\n" "#define PJMEDIA_HAS_LIBYUV 0" >>confdefs.h
 
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if libyuv is disabled...yes" >&5
-$as_echo "Checking if libyuv is disabled...yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if libyuv is disabled...yes" >&5
+printf "%s\n" "Checking if libyuv is disabled...yes" >&6; }
 	       fi
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if libyuv is disabled...no" >&5
-$as_echo "Checking if libyuv is disabled...no" >&6; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if libyuv is disabled...no" >&5
+printf "%s\n" "Checking if libyuv is disabled...no" >&6; } ;;
+esac
 fi
 
 
@@ -8997,18 +9987,19 @@
 
 
 # Check whether --enable-libwebrtc was given.
-if test "${enable_libwebrtc+set}" = set; then :
+if test ${enable_libwebrtc+y}
+then :
   enableval=$enable_libwebrtc; if test "$enable_libwebrtc" = "no"; then
 		ac_no_webrtc=1
-		$as_echo "#define PJMEDIA_HAS_LIBWEBRTC 0" >>confdefs.h
+		printf "%s\n" "#define PJMEDIA_HAS_LIBWEBRTC 0" >>confdefs.h
 
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if libwebrtc is disabled...yes" >&5
-$as_echo "Checking if libwebrtc is disabled...yes" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if libwebrtc is disabled...yes" >&5
+printf "%s\n" "Checking if libwebrtc is disabled...yes" >&6; }
 	       fi
-else
-
-		  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Checking if libwebrtc is disabled...no" >&5
-$as_echo "Checking if libwebrtc is disabled...no" >&6; }
+else case e in #(
+  e)
+		  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Checking if libwebrtc is disabled...no" >&5
+printf "%s\n" "Checking if libwebrtc is disabled...no" >&6; }
 		  case $target in
 		      *-apple-darwin_ios*)
 			case $target in
@@ -9070,7 +10061,8 @@
 		     *)
 			;;
 		esac
-
+	       ;;
+esac
 fi
 
 
@@ -9077,74 +10069,74 @@
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if select() needs correct nfds" >&5
-$as_echo_n "checking if select() needs correct nfds... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if select() needs correct nfds" >&5
+printf %s "checking if select() needs correct nfds... " >&6; }
 case $target in
-  *rtems*) $as_echo "#define PJ_SELECT_NEEDS_NFDS 1" >>confdefs.h
+  *rtems*) printf "%s\n" "#define PJ_SELECT_NEEDS_NFDS 1" >>confdefs.h
 
-	   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
+	   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
 	;;
-  *) $as_echo "#define PJ_SELECT_NEEDS_NFDS 0" >>confdefs.h
+  *) printf "%s\n" "#define PJ_SELECT_NEEDS_NFDS 0" >>confdefs.h
 
-     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no (default)" >&5
-$as_echo "no (default)" >&6; }
-     { $as_echo "$as_me:${as_lineno-$LINENO}: result: ** Decided that select() doesn't need correct nfds (please check)" >&5
-$as_echo "** Decided that select() doesn't need correct nfds (please check)" >&6; }
+     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no (default)" >&5
+printf "%s\n" "no (default)" >&6; }
+     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ** Decided that select() doesn't need correct nfds (please check)" >&5
+printf "%s\n" "** Decided that select() doesn't need correct nfds (please check)" >&6; }
 	;;
 esac
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if pj_thread_create() should enforce stack size" >&5
-$as_echo_n "checking if pj_thread_create() should enforce stack size... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if pj_thread_create() should enforce stack size" >&5
+printf %s "checking if pj_thread_create() should enforce stack size... " >&6; }
 case $target in
-  *rtems*) $as_echo "#define PJ_THREAD_SET_STACK_SIZE 1" >>confdefs.h
+  *rtems*) printf "%s\n" "#define PJ_THREAD_SET_STACK_SIZE 1" >>confdefs.h
 
-	   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
+	   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
 	;;
-  *) $as_echo "#define PJ_THREAD_SET_STACK_SIZE 0" >>confdefs.h
+  *) printf "%s\n" "#define PJ_THREAD_SET_STACK_SIZE 0" >>confdefs.h
 
-     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no (default)" >&5
-$as_echo "no (default)" >&6; }
+     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no (default)" >&5
+printf "%s\n" "no (default)" >&6; }
 	;;
 esac
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if pj_thread_create() should allocate stack" >&5
-$as_echo_n "checking if pj_thread_create() should allocate stack... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if pj_thread_create() should allocate stack" >&5
+printf %s "checking if pj_thread_create() should allocate stack... " >&6; }
 case $target in
-  *rtems*) $as_echo "#define PJ_THREAD_ALLOCATE_STACK 1" >>confdefs.h
+  *rtems*) printf "%s\n" "#define PJ_THREAD_ALLOCATE_STACK 1" >>confdefs.h
 
-	   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
+	   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
 	;;
-  *) $as_echo "#define PJ_THREAD_ALLOCATE_STACK 0" >>confdefs.h
+  *) printf "%s\n" "#define PJ_THREAD_ALLOCATE_STACK 0" >>confdefs.h
 
-     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no (default)" >&5
-$as_echo "no (default)" >&6; }
+     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no (default)" >&5
+printf "%s\n" "no (default)" >&6; }
 	;;
 esac
 
 case $target in
   *mingw* | *cygw* | *win32* | *w32* )
-	$as_echo "#define PJ_BLOCKING_ERROR_VAL WSAEWOULDBLOCK" >>confdefs.h
+	printf "%s\n" "#define PJ_BLOCKING_ERROR_VAL WSAEWOULDBLOCK" >>confdefs.h
 
 	;;
-  *) $as_echo "#define PJ_BLOCKING_ERROR_VAL EAGAIN" >>confdefs.h
+  *) printf "%s\n" "#define PJ_BLOCKING_ERROR_VAL EAGAIN" >>confdefs.h
 
-     { $as_echo "$as_me:${as_lineno-$LINENO}: result: ** Setting non-blocking recv() retval to EAGAIN (please check)" >&5
-$as_echo "** Setting non-blocking recv() retval to EAGAIN (please check)" >&6; }
+     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ** Setting non-blocking recv() retval to EAGAIN (please check)" >&5
+printf "%s\n" "** Setting non-blocking recv() retval to EAGAIN (please check)" >&6; }
 	;;
 esac
 
 case $target in
   *mingw* | *cygw* | *win32* | *w32* )
-	$as_echo "#define PJ_BLOCKING_CONNECT_ERROR_VAL WSAEWOULDBLOCK" >>confdefs.h
+	printf "%s\n" "#define PJ_BLOCKING_CONNECT_ERROR_VAL WSAEWOULDBLOCK" >>confdefs.h
 
 	;;
-  *) $as_echo "#define PJ_BLOCKING_CONNECT_ERROR_VAL EINPROGRESS" >>confdefs.h
+  *) printf "%s\n" "#define PJ_BLOCKING_CONNECT_ERROR_VAL EINPROGRESS" >>confdefs.h
 
-     { $as_echo "$as_me:${as_lineno-$LINENO}: result: ** Setting non-blocking connect() retval to EINPROGRESS (please check)" >&5
-$as_echo "** Setting non-blocking connect() retval to EINPROGRESS (please check)" >&6; }
+     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ** Setting non-blocking connect() retval to EINPROGRESS (please check)" >&5
+printf "%s\n" "** Setting non-blocking connect() retval to EINPROGRESS (please check)" >&6; }
 	;;
 esac
 
@@ -9174,8 +10166,8 @@
 # config.status only pays attention to the cache file if you give it
 # the --recheck option to rerun configure.
 #
-# `ac_cv_env_foo' variables (set or unset) will be overridden when
-# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# 'ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* 'ac_cv_foo' will be assigned the
 # following values.
 
 _ACEOF
@@ -9191,8 +10183,8 @@
     case $ac_val in #(
     *${as_nl}*)
       case $ac_var in #(
-      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
-$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       esac
       case $ac_var in #(
       _ | IFS | as_nl) ;; #(
@@ -9205,7 +10197,7 @@
   (set) 2>&1 |
     case $as_nl`(ac_space=' '; set) 2>&1` in #(
     *${as_nl}ac_space=\ *)
-      # `set' does not quote correctly, so add quotes: double-quote
+      # 'set' does not quote correctly, so add quotes: double-quote
       # substitution turns \\\\ into \\, and sed turns \\ into \.
       sed -n \
 	"s/'/'\\\\''/g;
@@ -9212,7 +10204,7 @@
 	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
       ;; #(
     *)
-      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      # 'set' quotes correctly as required by POSIX, so do not add quotes.
       sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
       ;;
     esac |
@@ -9222,7 +10214,7 @@
      /^ac_cv_env_/b end
      t clear
      :clear
-     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     s/^\([^=]*\)=\(.*[{}].*\)$/test ${\1+y} || &/
      t end
      s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
      :end' >>confcache
@@ -9229,8 +10221,8 @@
 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
   if test -w "$cache_file"; then
     if test "x$cache_file" != "x/dev/null"; then
-      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
-$as_echo "$as_me: updating cache $cache_file" >&6;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+printf "%s\n" "$as_me: updating cache $cache_file" >&6;}
       if test ! -f "$cache_file" || test -h "$cache_file"; then
 	cat confcache >"$cache_file"
       else
@@ -9244,8 +10236,8 @@
       fi
     fi
   else
-    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
-$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+printf "%s\n" "$as_me: not updating unwritable cache $cache_file" >&6;}
   fi
 fi
 rm -f confcache
@@ -9262,7 +10254,7 @@
 for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
   # 1. Remove the extension, and $U if already installed.
   ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
-  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
+  ac_i=`printf "%s\n" "$ac_i" | sed "$ac_script"`
   # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
   #    will be set to the directory where LIBOBJS objects are built.
   as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
@@ -9279,8 +10271,8 @@
 ac_write_fail=0
 ac_clean_files_save=$ac_clean_files
 ac_clean_files="$ac_clean_files $CONFIG_STATUS"
-{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
-$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+printf "%s\n" "$as_me: creating $CONFIG_STATUS" >&6;}
 as_write_fail=0
 cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
 #! $SHELL
@@ -9303,7 +10295,8 @@
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
@@ -9310,56 +10303,57 @@
   # is contrary to our usage.  Disable this feature.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
-else
-  case `(set -o) 2>/dev/null` in #(
+else case e in #(
+  e) case `(set -o) 2>/dev/null` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 
 
+
+# Reset variables that may have inherited troublesome values from
+# the environment.
+
+# IFS needs to be set, to space, tab, and newline, in precisely that order.
+# (If _AS_PATH_WALK were called with IFS unset, it would have the
+# side effect of setting IFS to empty, thus disabling word splitting.)
+# Quoting is to prevent editors from complaining about space-tab.
 as_nl='
 '
 export as_nl
-# Printing a long string crashes Solaris 7 /usr/bin/printf.
-as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-# Prefer a ksh shell builtin over an external printf program on Solaris,
-# but without wasting forks for bash or zsh.
-if test -z "$BASH_VERSION$ZSH_VERSION" \
-    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='print -r --'
-  as_echo_n='print -rn --'
-elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='printf %s\n'
-  as_echo_n='printf %s'
-else
-  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
-    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
-    as_echo_n='/usr/ucb/echo -n'
-  else
-    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
-    as_echo_n_body='eval
-      arg=$1;
-      case $arg in #(
-      *"$as_nl"*)
-	expr "X$arg" : "X\\(.*\\)$as_nl";
-	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
-      esac;
-      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
-    '
-    export as_echo_n_body
-    as_echo_n='sh -c $as_echo_n_body as_echo'
-  fi
-  export as_echo_body
-  as_echo='sh -c $as_echo_body as_echo'
-fi
+IFS=" ""	$as_nl"
 
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# Ensure predictable behavior from utilities with locale-dependent output.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# We cannot yet rely on "unset" to work, but we need these variables
+# to be unset--not just set to an empty or harmless value--now, to
+# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh).  This construct
+# also avoids known problems related to "unset" and subshell syntax
+# in other old shells (e.g. bash 2.01 and pdksh 5.2.14).
+for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH
+do eval test \${$as_var+y} \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+
+# Ensure that fds 0, 1, and 2 are open.
+if (exec 3>&0) 2>/dev/null; then :; else exec 0</dev/null; fi
+if (exec 3>&1) 2>/dev/null; then :; else exec 1>/dev/null; fi
+if (exec 3>&2)            ; then :; else exec 2>/dev/null; fi
+
 # The user is always right.
-if test "${PATH_SEPARATOR+set}" != set; then
+if ${PATH_SEPARATOR+false} :; then
   PATH_SEPARATOR=:
   (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
     (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
@@ -9368,13 +10362,6 @@
 fi
 
 
-# IFS
-# We need space, tab and new line, in precisely that order.  Quoting is
-# there to prevent editors from complaining about space-tab.
-# (If _AS_PATH_WALK were called with IFS unset, it would disable word
-# splitting by setting IFS to empty value.)
-IFS=" ""	$as_nl"
-
 # Find who we are.  Look in the path if we contain no directory separator.
 as_myself=
 case $0 in #((
@@ -9383,45 +10370,29 @@
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    test -r "$as_dir$0" && as_myself=$as_dir$0 && break
   done
 IFS=$as_save_IFS
 
      ;;
 esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
+# We did not find ourselves, most probably we were run as 'sh COMMAND'
 # in which case we are not to be found in the path.
 if test "x$as_myself" = x; then
   as_myself=$0
 fi
 if test ! -f "$as_myself"; then
-  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
   exit 1
 fi
 
-# Unset variables that we do not need and which cause bugs (e.g. in
-# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
-# suppresses any "Segmentation fault" message there.  '((' could
-# trigger a bug in pdksh 5.2.14.
-for as_var in BASH_ENV ENV MAIL MAILPATH
-do eval test x\${$as_var+set} = xset \
-  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
-done
-PS1='$ '
-PS2='> '
-PS4='+ '
 
-# NLS nuisances.
-LC_ALL=C
-export LC_ALL
-LANGUAGE=C
-export LANGUAGE
 
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-
 # as_fn_error STATUS ERROR [LINENO LOG_FD]
 # ----------------------------------------
 # Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
@@ -9432,9 +10403,9 @@
   as_status=$1; test $as_status -eq 0 && as_status=1
   if test "$4"; then
     as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
   fi
-  $as_echo "$as_me: error: $2" >&2
+  printf "%s\n" "$as_me: error: $2" >&2
   as_fn_exit $as_status
 } # as_fn_error
 
@@ -9465,6 +10436,7 @@
   { eval $1=; unset $1;}
 }
 as_unset=as_fn_unset
+
 # as_fn_append VAR VALUE
 # ----------------------
 # Append the text in VALUE to the end of the definition contained in VAR. Take
@@ -9471,16 +10443,18 @@
 # advantage of any shell optimizations that allow amortized linear growth over
 # repeated appends, instead of the typical quadratic growth present in naive
 # implementations.
-if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null
+then :
   eval 'as_fn_append ()
   {
     eval $1+=\$2
   }'
-else
-  as_fn_append ()
+else case e in #(
+  e) as_fn_append ()
   {
     eval $1=\$$1\$2
-  }
+  } ;;
+esac
 fi # as_fn_append
 
 # as_fn_arith ARG...
@@ -9488,16 +10462,18 @@
 # Perform arithmetic evaluation on the ARGs, and store the result in the
 # global $as_val. Take advantage of shells that can avoid forks. The arguments
 # must be portable across $(()) and expr.
-if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null
+then :
   eval 'as_fn_arith ()
   {
     as_val=$(( $* ))
   }'
-else
-  as_fn_arith ()
+else case e in #(
+  e) as_fn_arith ()
   {
     as_val=`expr "$@" || test $? -eq 1`
-  }
+  } ;;
+esac
 fi # as_fn_arith
 
 
@@ -9524,7 +10500,7 @@
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
 	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
+printf "%s\n" X/"$0" |
     sed '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
@@ -9546,6 +10522,10 @@
 as_cr_digits='0123456789'
 as_cr_alnum=$as_cr_Letters$as_cr_digits
 
+
+# Determine whether it's possible to make 'echo' print without a newline.
+# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
+# for compatibility with existing Makefiles.
 ECHO_C= ECHO_N= ECHO_T=
 case `echo -n x` in #(((((
 -n*)
@@ -9559,6 +10539,12 @@
   ECHO_N='-n';;
 esac
 
+# For backward compatibility with old third-party macros, we provide
+# the shell variables $as_echo and $as_echo_n.  New code should use
+# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
+as_echo='printf %s\n'
+as_echo_n='printf %s'
+
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
   rm -f conf$$.dir/conf$$.file
@@ -9570,9 +10556,9 @@
   if ln -s conf$$.file conf$$ 2>/dev/null; then
     as_ln_s='ln -s'
     # ... but there are two gotchas:
-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -pR'.
+    # 1) On MSYS, both 'ln -s file dir' and 'ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; 'ln -s' creates a wrapper executable.
+    # In both cases, we have to default to 'cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
       as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
@@ -9600,7 +10586,7 @@
     as_dirs=
     while :; do
       case $as_dir in #(
-      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
       *) as_qdir=$as_dir;;
       esac
       as_dirs="'$as_qdir' $as_dirs"
@@ -9609,7 +10595,7 @@
 	 X"$as_dir" : 'X\(//\)[^/]' \| \
 	 X"$as_dir" : 'X\(//\)$' \| \
 	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_dir" |
+printf "%s\n" X"$as_dir" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -9653,10 +10639,12 @@
 as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_cpp="y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+as_tr_cpp="eval sed '$as_sed_cpp'" # deprecated
 
 # Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_sh="y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
+as_tr_sh="eval sed '$as_sed_sh'" # deprecated
 
 
 exec 6>&1
@@ -9672,7 +10660,7 @@
 # values after options handling.
 ac_log="
 This file was extended by pjproject $as_me 2.x, which was
-generated by GNU Autoconf 2.69.  Invocation command line was
+generated by GNU Autoconf 2.72.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -9703,7 +10691,7 @@
 
 cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 ac_cs_usage="\
-\`$as_me' instantiates files and other configuration actions
+'$as_me' instantiates files and other configuration actions
 from templates according to the current configuration.  Unless the files
 and actions are specified as TAGs, all are instantiated by default.
 
@@ -9730,14 +10718,16 @@
 Report bugs to the package provider."
 
 _ACEOF
+ac_cs_config=`printf "%s\n" "$ac_configure_args" | sed "$ac_safe_unquote"`
+ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\''/g"`
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
 pjproject config.status 2.x
-configured by $0, generated by GNU Autoconf 2.69,
+configured by $0, generated by GNU Autoconf 2.72,
   with options \\"\$ac_cs_config\\"
 
-Copyright (C) 2012 Free Software Foundation, Inc.
+Copyright (C) 2023 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 
@@ -9774,15 +10764,15 @@
   -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
     ac_cs_recheck=: ;;
   --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
-    $as_echo "$ac_cs_version"; exit ;;
+    printf "%s\n" "$ac_cs_version"; exit ;;
   --config | --confi | --conf | --con | --co | --c )
-    $as_echo "$ac_cs_config"; exit ;;
+    printf "%s\n" "$ac_cs_config"; exit ;;
   --debug | --debu | --deb | --de | --d | -d )
     debug=: ;;
   --file | --fil | --fi | --f )
     $ac_shift
     case $ac_optarg in
-    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
     '') as_fn_error $? "missing file argument" ;;
     esac
     as_fn_append CONFIG_FILES " '$ac_optarg'"
@@ -9790,23 +10780,23 @@
   --header | --heade | --head | --hea )
     $ac_shift
     case $ac_optarg in
-    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
     esac
     as_fn_append CONFIG_HEADERS " '$ac_optarg'"
     ac_need_defaults=false;;
   --he | --h)
     # Conflict between --help and --header
-    as_fn_error $? "ambiguous option: \`$1'
-Try \`$0 --help' for more information.";;
+    as_fn_error $? "ambiguous option: '$1'
+Try '$0 --help' for more information.";;
   --help | --hel | -h )
-    $as_echo "$ac_cs_usage"; exit ;;
+    printf "%s\n" "$ac_cs_usage"; exit ;;
   -q | -quiet | --quiet | --quie | --qui | --qu | --q \
   | -silent | --silent | --silen | --sile | --sil | --si | --s)
     ac_cs_silent=: ;;
 
   # This is an error.
-  -*) as_fn_error $? "unrecognized option: \`$1'
-Try \`$0 --help' for more information." ;;
+  -*) as_fn_error $? "unrecognized option: '$1'
+Try '$0 --help' for more information." ;;
 
   *) as_fn_append ac_config_targets " $1"
      ac_need_defaults=false ;;
@@ -9827,7 +10817,7 @@
 if \$ac_cs_recheck; then
   set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
   shift
-  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
+  \printf "%s\n" "running CONFIG_SHELL=$SHELL \$*" >&6
   CONFIG_SHELL='$SHELL'
   export CONFIG_SHELL
   exec "\$@"
@@ -9841,7 +10831,7 @@
   sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
 ## Running $as_me. ##
 _ASBOX
-  $as_echo "$ac_log"
+  printf "%s\n" "$ac_log"
 } >&5
 
 _ACEOF
@@ -9868,7 +10858,7 @@
     "pjsip/build/os-auto.mak") CONFIG_FILES="$CONFIG_FILES pjsip/build/os-auto.mak" ;;
     "third_party/build/os-auto.mak") CONFIG_FILES="$CONFIG_FILES third_party/build/os-auto.mak" ;;
 
-  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  *) as_fn_error $? "invalid argument: '$ac_config_target'" "$LINENO" 5;;
   esac
 done
 
@@ -9878,8 +10868,8 @@
 # We use the long form for the default assignment because of an extremely
 # bizarre bug on SunOS 4.1.3.
 if $ac_need_defaults; then
-  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
-  test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
+  test ${CONFIG_FILES+y} || CONFIG_FILES=$config_files
+  test ${CONFIG_HEADERS+y} || CONFIG_HEADERS=$config_headers
 fi
 
 # Have a temporary directory for convenience.  Make it in the build tree
@@ -9887,7 +10877,7 @@
 # creating and moving files from /tmp can sometimes cause problems.
 # Hook for its removal unless debugging.
 # Note that there is a small window in which the directory will not be cleaned:
-# after its creation but before its name has been assigned to `$tmp'.
+# after its creation but before its name has been assigned to '$tmp'.
 $debug ||
 {
   tmp= ac_tmp=
@@ -9911,7 +10901,7 @@
 
 # Set up the scripts for CONFIG_FILES section.
 # No need to generate them if there are no CONFIG_FILES.
-# This happens for instance with `./config.status config.h'.
+# This happens for instance with './config.status config.h'.
 if test -n "$CONFIG_FILES"; then
 
 
@@ -10069,13 +11059,13 @@
 
 # Set up the scripts for CONFIG_HEADERS section.
 # No need to generate them if there are no CONFIG_HEADERS.
-# This happens for instance with `./config.status Makefile'.
+# This happens for instance with './config.status Makefile'.
 if test -n "$CONFIG_HEADERS"; then
 cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
 BEGIN {
 _ACEOF
 
-# Transform confdefs.h into an awk script `defines.awk', embedded as
+# Transform confdefs.h into an awk script 'defines.awk', embedded as
 # here-document in config.status, that substitutes the proper values into
 # config.h.in to produce config.h.
 
@@ -10185,7 +11175,7 @@
   esac
   case $ac_mode$ac_tag in
   :[FHL]*:*);;
-  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :L* | :C*:*) as_fn_error $? "invalid tag '$ac_tag'" "$LINENO" 5;;
   :[FH]-) ac_tag=-:-;;
   :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
   esac
@@ -10207,33 +11197,33 @@
       -) ac_f="$ac_tmp/stdin";;
       *) # Look for the file first in the build tree, then in the source tree
 	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
-	 # because $ac_f cannot contain `:'.
+	 # because $ac_f cannot contain ':'.
 	 test -f "$ac_f" ||
 	   case $ac_f in
 	   [\\/$]*) false;;
 	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
 	   esac ||
-	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+	   as_fn_error 1 "cannot find input file: '$ac_f'" "$LINENO" 5;;
       esac
-      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+      case $ac_f in *\'*) ac_f=`printf "%s\n" "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
       as_fn_append ac_file_inputs " '$ac_f'"
     done
 
-    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # Let's still pretend it is 'configure' which instantiates (i.e., don't
     # use $as_me), people would be surprised to read:
     #    /* config.h.  Generated by config.status.  */
     configure_input='Generated from '`
-	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+	  printf "%s\n" "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
 	`' by configure.'
     if test x"$ac_file" != x-; then
       configure_input="$ac_file.  $configure_input"
-      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
-$as_echo "$as_me: creating $ac_file" >&6;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+printf "%s\n" "$as_me: creating $ac_file" >&6;}
     fi
     # Neutralize special characters interpreted by sed in replacement strings.
     case $configure_input in #(
     *\&* | *\|* | *\\* )
-       ac_sed_conf_input=`$as_echo "$configure_input" |
+       ac_sed_conf_input=`printf "%s\n" "$configure_input" |
        sed 's/[\\\\&|]/\\\\&/g'`;; #(
     *) ac_sed_conf_input=$configure_input;;
     esac
@@ -10250,7 +11240,7 @@
 	 X"$ac_file" : 'X\(//\)[^/]' \| \
 	 X"$ac_file" : 'X\(//\)$' \| \
 	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$ac_file" |
+printf "%s\n" X"$ac_file" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -10274,9 +11264,9 @@
 case "$ac_dir" in
 .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
 *)
-  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
   # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
   case $ac_top_builddir_sub in
   "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
   *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
@@ -10329,8 +11319,8 @@
 case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
 *datarootdir*) ac_datarootdir_seen=yes;;
 *@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
-$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+printf "%s\n" "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
   ac_datarootdir_hack='
@@ -10343,7 +11333,7 @@
 esac
 _ACEOF
 
-# Neutralize VPATH when `$srcdir' = `.'.
+# Neutralize VPATH when '$srcdir' = '.'.
 # Shell code in configure.ac might set extrasub.
 # FIXME: do we really want to maintain this feature?
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
@@ -10372,9 +11362,9 @@
   { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
   { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
       "$ac_tmp/out"`; test -z "$ac_out"; } &&
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable 'datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&5
-$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable 'datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&2;}
 
   rm -f "$ac_tmp/stdin"
@@ -10390,13 +11380,13 @@
   #
   if test x"$ac_file" != x-; then
     {
-      $as_echo "/* $configure_input  */" \
+      printf "%s\n" "/* $configure_input  */" >&1 \
       && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
     } >"$ac_tmp/config.h" \
       || as_fn_error $? "could not create $ac_file" "$LINENO" 5
     if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
-      { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
-$as_echo "$as_me: $ac_file is unchanged" >&6;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
+printf "%s\n" "$as_me: $ac_file is unchanged" >&6;}
     else
       rm -f "$ac_file"
       mv "$ac_tmp/config.h" "$ac_file" \
@@ -10403,7 +11393,7 @@
 	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
     fi
   else
-    $as_echo "/* $configure_input  */" \
+    printf "%s\n" "/* $configure_input  */" >&1 \
       && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
       || as_fn_error $? "could not create -" "$LINENO" 5
   fi
@@ -10444,13 +11434,13 @@
   $ac_cs_success || as_fn_exit 1
 fi
 if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
-$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
 fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result:
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result:
 
 Configurations for current target have been written to 'build.mak', and 'os-auto.mak' in various build directories, and pjlib/include/pj/compat/os_auto.h.
 
@@ -10460,7 +11450,7 @@
 
 The next step now is to run 'make dep' and 'make'.
 " >&5
-$as_echo "
+printf "%s\n" "
 
 Configurations for current target have been written to 'build.mak', and 'os-auto.mak' in various build directories, and pjlib/include/pj/compat/os_auto.h.
 
@@ -10471,3 +11461,4 @@
 The next step now is to run 'make dep' and 'make'.
 " >&6; }
 
+
Index: recordListModel.cpp
===================================================================
--- recordListModel.cpp	(revision 1067)
+++ recordListModel.cpp	(working copy)
@@ -32,7 +32,7 @@
 Qt::ItemFlags RecordListModel::flags(const QModelIndex &index) const
 {
     if (!index.isValid())
-	return 0;
+	return Qt::NoItemFlags;
 
     Qt::ItemFlags f = Qt::ItemNeverHasChildren | Qt::ItemIsEnabled;
 
@@ -188,7 +188,7 @@
 		" WHERE UNIX_TIMESTAMP(endtime) >= %1 AND UNIX_TIMESTAMP(%4) <= %2 AND has_record=1) UNION"
 		" (SELECT 0 AS type, id, UNIX_TIMESTAMP(starttime) AS start, UNIX_TIMESTAMP(endtime), CONCAT(caller, ' - ', callee) AS text FROM recordings"
 		" WHERE UNIX_TIMESTAMP(endtime) >= %1 AND UNIX_TIMESTAMP(starttime) <= %2) ORDER BY start LIMIT %3 OFFSET %5")
-		.arg(from.toTime_t(), 0, 10).arg(to.toTime_t(), 0, 10).arg(sqlLimit + 1)
+		.arg(from.toSecsSinceEpoch(), 0, 10).arg(to.toSecsSinceEpoch(), 0, 10).arg(sqlLimit + 1)
 		.arg(sqlConnection.cdrHasStartrecord() ? "startrecord" : "starttime");
 	break;
 
@@ -196,7 +196,7 @@
 	// Только переговоры в конференциях
 	lastQuery = QString("SELECT 1, id, UNIX_TIMESTAMP(%4), UNIX_TIMESTAMP(endtime), conference FROM cdr"
 		" WHERE UNIX_TIMESTAMP(endtime) >= %1 AND UNIX_TIMESTAMP(%4) <= %2 AND has_record=1 ORDER BY %4 LIMIT %3 OFFSET %5")
-		.arg(from.toTime_t(), 0, 10).arg(to.toTime_t(), 0, 10).arg(sqlLimit + 1)
+		.arg(from.toSecsSinceEpoch(), 0, 10).arg(to.toSecsSinceEpoch(), 0, 10).arg(sqlLimit + 1)
 		.arg(sqlConnection.cdrHasStartrecord() ? "startrecord" : "starttime");
 	break;
 
@@ -204,7 +204,7 @@
 	// Только прямые соединения
 	lastQuery = QString("SELECT 0, id, UNIX_TIMESTAMP(starttime), UNIX_TIMESTAMP(endtime), CONCAT(caller, ' - ', callee) FROM recordings"
 		" WHERE UNIX_TIMESTAMP(endtime) >= %1 AND UNIX_TIMESTAMP(starttime) <= %2 ORDER BY starttime LIMIT %3 OFFSET %4")
-		.arg(from.toTime_t(), 0, 10).arg(to.toTime_t(), 0, 10).arg(sqlLimit + 1);
+		.arg(from.toSecsSinceEpoch(), 0, 10).arg(to.toSecsSinceEpoch(), 0, 10).arg(sqlLimit + 1);
 	break;
     }
 
Index: recordParticipantListModel.cpp
===================================================================
--- recordParticipantListModel.cpp	(revision 1067)
+++ recordParticipantListModel.cpp	(working copy)
@@ -32,7 +32,7 @@
 Qt::ItemFlags RecordParticipantListModel::flags(const QModelIndex &index) const
 {
     if (!index.isValid())
-	return 0;
+	return Qt::NoItemFlags;
 
     return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
 }
Index: userListModel.cpp
===================================================================
--- userListModel.cpp	(revision 1067)
+++ userListModel.cpp	(working copy)
@@ -213,7 +213,7 @@
 Qt::ItemFlags UserListModel::flags(const QModelIndex &index) const
 {
     if (!index.isValid())
-	return 0;
+      return Qt::NoItemFlags;
 
     return Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsDragEnabled;
 }
@@ -285,7 +285,7 @@
 		// Это группа пользователей. Добавляем всех ее зарегистрированных членов
 		int children = rowCount(index);
 		for(int row = 0; row < children; row++) {
-		    QModelIndex idx = index.child(row, 0);
+		  QModelIndex idx = this->index(row, 0, index);
 		    if(idx.isValid()) {
 			if(idx.data(UserListModel::IsRegisteredRole).toBool())
 			    stream << idx.data(UserListModel::UriRole).toString();
@@ -481,7 +481,7 @@
     QString uri = ctx.toString();
     QStringList gps;
     if(res != "-ERR no reply\n")
-	gps = res.split(";", QString::SkipEmptyParts);
+	gps = res.split(";", Qt::SkipEmptyParts);
 
     if(gps.isEmpty())
 	gps.append(NO_GROUP);
Index: userListView.cpp
===================================================================
--- userListView.cpp	(revision 1067)
+++ userListView.cpp	(working copy)
@@ -138,7 +138,7 @@
 	    // Это группа пользователей. Добавляем всех ее зарегистрированных членов
 	    int children = it->model()->rowCount(*it);
 	    for(int row = 0; row < children; row++) {
-		QModelIndex index = it->child(row, 0);
+	      QModelIndex index = model()->index(row, 0, index);
 		if(index.isValid()) {
 		    if(index.data(UserListModel::IsRegisteredRole).toBool())
 			toCall.insert(index.data(UserListModel::UriRole).toString());
