--- qsampler/trunk/configure.ac	2009/11/04 18:59:57	2028
+++ qsampler/trunk/configure.ac	2010/07/10 09:47:33	2107
@@ -1,9 +1,9 @@
 # Process this file with autoconf to produce a configure script.
-AC_INIT(Qsampler, 0.2.2.2, rncbc@rncbc.org, qsampler)
+AC_INIT(Qsampler, 0.2.2.24, rncbc@rncbc.org, qsampler)
 
-AC_CONFIG_SRCDIR(src/qsamplerMainForm.ui)
-AC_CONFIG_HEADERS(config.h)
-AC_CONFIG_FILES(Makefile qsampler.pro qsampler.spec qsampler.desktop)
+AC_CONFIG_SRCDIR(src/qsampler.cpp)
+AC_CONFIG_HEADERS(src/config.h)
+AC_CONFIG_FILES(Makefile qsampler.spec src/src.pri src/qsampler.desktop)
 
 # Set default installation prefix.
 AC_PREFIX_DEFAULT(/usr/local)
@@ -21,8 +21,10 @@
 
 if test "x$ac_debug" = "xyes"; then
    AC_DEFINE(CONFIG_DEBUG, 1, [Define if debugging is enabled.])
+   ac_stacktrace="yes"
    ac_debug="debug"
 else
+   ac_stacktrace="no"
    ac_debug="release"
 fi
 AC_SUBST(ac_debug)
@@ -33,6 +35,12 @@
   [ac_libgig="$enableval"],
   [ac_libgig="yes"])
 
+# Enable debugger stack-trace option (assumes --enable-debug).
+AC_ARG_ENABLE(stacktrace,
+  AC_HELP_STRING([--enable-stacktrace], [enable debugger stack-trace (default=no)]),
+  [ac_stacktrace="$enableval"])
+
+
 # Standard installation base dirs.
 ac_with_paths="/usr /usr/local"
 
@@ -103,14 +111,14 @@
 done
 
 # Check for proper Qt version.
-AC_CACHE_CHECK([for Qt library version >= 4.1],
+AC_CACHE_CHECK([for Qt library version >= 4.2],
   ac_cv_qtversion, [
   AC_TRY_LINK([#include "Qt/qglobal.h"], [
-#if QT_VERSION < 0x040100
-#error Qt library 4.1 or greater required.
+#if QT_VERSION < 0x040200
+#error Qt library 4.2 or greater required.
 #endif
     ], ac_cv_qtversion="yes", [
-      echo "no; Qt 4.1 or greater is required"
+      echo "no; Qt 4.2 or greater is required"
       exit
     ])
 ])
@@ -321,6 +329,11 @@
    AC_DEFINE(CONFIG_ROUND, 1, [Define if round is available.])
 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.])
+fi
+
 AC_SUBST(ac_libs)
 AC_SUBST(ac_incpath)
 
@@ -369,6 +382,8 @@
 echo "  LSCP device MIDI event support . . . . . . . . . .: $ac_device_midi_event"
 echo "  LSCP runtime max. voices / disk streams support  .: $ac_max_voices"
 echo
+echo "  Debugger stack-trace (gdb) . . . . . . . . . . . .: $ac_stacktrace"
+echo
 echo "  Install prefix . . . . . . . . . . . . . . . . . .: $ac_prefix"
 echo
 echo "Now type 'make', followed by 'make install' as root."