--- qsampler/trunk/configure.ac	2015/03/25 09:24:40	2725
+++ qsampler/trunk/configure.ac	2015/09/03 09:56:47	2842
@@ -1,5 +1,5 @@
 # Process this file with autoconf to produce a configure script.
-AC_INIT(Qsampler, 0.3.0, rncbc@rncbc.org, qsampler)
+AC_INIT(Qsampler, 0.3.1.5, rncbc@rncbc.org, qsampler)
 
 AC_CONFIG_SRCDIR(src/qsampler.cpp)
 AC_CONFIG_HEADERS(src/config.h)
@@ -32,14 +32,14 @@
 
 # Enable Qt4/5 availability.
 AC_ARG_ENABLE(qt4,
-  AC_HELP_STRING([--enable-qt4], [enable Qt4 build (default=yes)]),
+  AC_HELP_STRING([--enable-qt4], [enable Qt4 build (default=no)]),
   [ac_qt4="$enableval"],
-  [ac_qt4="yes"])
+  [ac_qt4="no"])
 
 AC_ARG_ENABLE(qt5,
-  AC_HELP_STRING([--enable-qt5], [enable Qt5 build (default=no)]),
+  AC_HELP_STRING([--enable-qt5], [enable Qt5 build (default=yes)]),
   [ac_qt5="$enableval"],
-  [ac_qt5="no"])
+  [ac_qt5="yes"])
 
 
 
@@ -49,6 +49,12 @@
   [ac_libgig="$enableval"],
   [ac_libgig="yes"])
 
+# Enable X11 unique/single instance.
+AC_ARG_ENABLE(xunique,
+  AC_HELP_STRING([--enable-xunique], [enable X11 unique/single instance (default=yes)]),
+  [ac_xunique="$enableval"],
+  [ac_xunique="yes"])
+
 # Enable debugger stack-trace option (assumes --enable-debug).
 AC_ARG_ENABLE(stacktrace,
   AC_HELP_STRING([--enable-stacktrace], [enable debugger stack-trace (default=no)]),
@@ -81,11 +87,11 @@
    ac_qt5="yes"
 fi
 
-if test "x$ac_qt4" = "xno"; then
-   ac_qt5="yes"
+if test "x$ac_qt5" = "xno"; then
+   ac_qt4="yes"
 fi
-if test "x$ac_qt5" = "xyes"; then
-   ac_qt4="no"
+if test "x$ac_qt4" = "xyes"; then
+   ac_qt5="no"
 fi
 
 # Set for alternate liblscp installation dir.
@@ -120,69 +126,95 @@
 # Check for proper flags.
 ac_arch=`uname -m`
 
-# Check for some a-la-debian alternatives...
-ac_qtdirs="qt"
-
-if test "x$ac_qt4" = "xyes"; then
-   ac_qtdirs="qt4 $ac_qtdirs"
-fi
-if test "x$ac_qt5" = "xyes"; then
-   ac_qtdirs="qt5 $ac_qtdirs"
-fi
-
-ac_topdirs="/usr/share /usr/lib"
+# Check for install paths and alternatives...
+ac_libdirs="lib"
 
 if test "x$ac_arch" = "xx86_64"; then
-   CFLAGS="-fPIC $CFLAGS"
-   CPPFLAGS="-fPIC $CPPFLAGS"
-   ac_topdirs="$ac_topdirs /usr/lib64"
+   ac_libdirs="$ac_libdirs lib64"
 fi
 
-for X in $ac_topdirs; do
-  for Y in $ac_qtdirs; do
-    if test -d $X/$Y/bin; then
-      ac_with_paths="$X/$Y $ac_with_paths"
-    fi
-  done
-done
+CFLAGS="-fPIC $CFLAGS"
+CPPFLAGS="-fPIC $CPPFLAGS"
 
 # Prepend alternate dependencies paths.
 ac_path=$PATH
+
 for X in $ac_with_paths; do
   if test -d $X/bin; then
     ac_path="$X/bin:$ac_path"
   fi
-# if test -x $X/qmake; then
-#   ac_path="$X:$ac_path"
-# fi
   if test -d $X/include; then
-    for Y in $ac_qtdirs; do
-      if test -d $X/include/$Y; then
-        CFLAGS="-I$X/include/$Y $CFLAGS"
-        CPPFLAGS="-I$X/include/$Y $CPPFLAGS"
-        ac_incpath="$X/include/$Y $ac_incpath"
-      fi
-    done
-    CFLAGS="-I$X/include $CFLAGS"
+    CFLAGS="-I$X/include $CFLAGS "
     CPPFLAGS="-I$X/include $CPPFLAGS"
     ac_incpath="$X/include $ac_incpath"
   fi
-  if test "x$ac_arch" = "xx86_64" -a -d $X/lib64; then
-    LIBS="-L$X/lib64 $LIBS"
-    ac_libs="-L$X/lib64 $ac_libs"
-  fi
-  if test -d $X/lib; then
-    LIBS="-L$X/lib $LIBS"
-    ac_libs="-L$X/lib $ac_libs"
-  fi
+  for Y in $ac_libdirs; do
+    if test -d $X/$Y; then
+       LIBS="-L$X/$Y $LIBS"
+       ac_libs="-L$X/$Y $ac_libs"
+    fi
+  done
 done
 
+# A common error message:
+ac_errmsg="not found in current PATH. Maybe QT development environment isn't available."
+
+if test "x$ac_qt4" = "xyes"; then
+   AC_PATH_PROG(ac_qmake, qmake-qt4, [no], $ac_path)
+fi
+if test "x$ac_qt5" = "xyes"; then
+   AC_PATH_PROG(ac_qmake, qmake-qt5, [no], $ac_path)
+fi
+if test "x$ac_qmake" = "xno"; then
+   AC_PATH_PROG(ac_cv_qmake, qmake, [no], $ac_path)
+   ac_qmake=$ac_cv_qmake
+fi
+if test "x$ac_qmake" = "xno"; then
+   AC_MSG_ERROR([qmake $ac_errmsg])
+fi
+
+# Check for proper Qt4/5 major version.
+ac_qt_version_major=`$ac_qmake -query QT_VERSION | cut -d. -f1`
+if test "x$ac_qt4" = "xyes" -a "x$ac_qt_version_major" != "x4"; then
+   AC_MSG_ERROR([qmake-qt4 $ac_errmsg (qt4-devel)])
+fi
+if test "x$ac_qt5" = "xyes" -a "x$ac_qt_version_major" != "x5"; then
+   AC_MSG_ERROR([qmake-qt5 $ac_errmsg (qt5-devel)])
+fi
+
+ac_qt_install_bins=`$ac_qmake -query QT_INSTALL_BINS`
+if test -d $ac_qt_install_bins; then
+   ac_path="$ac_qt_install_bins:$ac_path"
+fi
+
+# Check it again, now with updated PATH, just in case...
+AC_PATH_PROG(ac_cv_qmake, qmake, [no], $ac_path)
+ac_qmake=$ac_cv_qmake
+if test "x$ac_qmake" = "xno"; then
+   AC_MSG_ERROR([qmake $ac_errmsg])
+fi
+
+AC_SUBST(ac_qmake)
+
+ac_qt_install_headers=`$ac_qmake -query QT_INSTALL_HEADERS`
+if test -d $ac_qt_install_headers; then
+   CFLAGS="-I$ac_qt_install_headers $CFLAGS "
+   CPPFLAGS="-I$ac_qt_install_headers $CPPFLAGS"
+   ac_incpath="$ac_qt_install_headers $ac_incpath"
+fi
+
+ac_qt_install_libs=`$ac_qmake -query QT_INSTALL_LIBS`
+if test -d $ac_qt_install_libs; then
+   LIBS="-L$ac_qt_install_libs $LIBS"
+   ac_libs="-L$ac_qt_install_libs $ac_libs"
+fi
+
 # Check for proper Qt4/5 version.
 if test "x$ac_qt4" = "xyes"; then
    AC_CACHE_CHECK([for Qt library version >= 4.4],
       ac_cv_qtversion, [
       AC_TRY_LINK([#include "QtCore/qglobal.h"], [
-         #if QT_VERSION < 0x040400
+         #if QT_VERSION < 0x040400 || QT_VERSION >= 0x050000
          #error Qt library 4.4 or greater required.
          #endif
       ], ac_cv_qtversion="yes", [
@@ -196,7 +228,7 @@
    AC_CACHE_CHECK([for Qt library version >= 5.1],
       ac_cv_qtversion, [
       AC_TRY_LINK([#include "QtCore/qglobal.h"], [
-         #if QT_VERSION < 0x050100
+         #if QT_VERSION < 0x050100 || QT_VERSION >= 0x060000
          #error Qt library 5.1 or greater required.
          #endif
       ], ac_cv_qtversion="yes", [
@@ -206,16 +238,6 @@
    ])
 fi
 
-# A common error message:
-ac_errmsg="not found in current PATH. Maybe QT development environment isn't available (qt-devel)."
-
-# Check for Qt qmake utility.
-AC_PATH_PROG(ac_qmake, qmake, [no], $ac_path)
-if test "x$ac_qmake" = "xno"; then
-   AC_MSG_ERROR([qmake $ac_errmsg])
-fi
-AC_SUBST(ac_qmake)
-
 # Check for Qt moc utility.
 AC_PATH_PROG(ac_moc, moc, [no], $ac_path)
 if test "x$ac_moc" = "xno"; then
@@ -244,6 +266,7 @@
 fi
 AC_SUBST(ac_lrelease)
 
+
 # Checks for libraries.
 AC_CHECK_LIB(m, main)
 AC_CHECK_LIB(X11, main)
@@ -401,6 +424,11 @@
    AC_DEFINE(CONFIG_ROUND, 1, [Define if round is available.])
 fi
 
+# Check for X11 unique/single instance.
+if test "x$ac_xunique" = "xyes"; then
+   AC_DEFINE(CONFIG_XUNIQUE, 1, [Define if X11 unique/single instance is enabled.])
+fi
+
 # Check for debugging stack-trace.
 if test "x$ac_stacktrace" = "xyes"; then
    AC_DEFINE(CONFIG_STACKTRACE, 1, [Define if debugger stack-trace is enabled.])
@@ -469,6 +497,7 @@
 echo "  LSCP device MIDI event support . . . . . . . . . .: $ac_device_midi_event"
 echo "  LSCP runtime max. voices / disk streams support  .: $ac_max_voices"
 echo
+echo "  X11 Unique/Single instance . . . . . . . . . . . .: $ac_xunique"
 echo "  Debugger stack-trace (gdb) . . . . . . . . . . . .: $ac_stacktrace"
 echo
 echo "  Install prefix . . . . . . . . . . . . . . . . . .: $ac_prefix"