--- qsampler/trunk/configure.ac	2015/08/25 18:36:55	2839
+++ qsampler/trunk/configure.ac	2016/04/12 16:52:35	2874
@@ -1,5 +1,5 @@
 # Process this file with autoconf to produce a configure script.
-AC_INIT(Qsampler, 0.3.1.4, rncbc@rncbc.org, qsampler)
+AC_INIT(Qsampler, 0.4.0.1, rncbc@rncbc.org, qsampler)
 
 AC_CONFIG_SRCDIR(src/qsampler.cpp)
 AC_CONFIG_HEADERS(src/config.h)
@@ -9,7 +9,7 @@
 AC_PREFIX_DEFAULT(/usr/local)
 ac_prefix=$prefix
 if test "x$ac_prefix" = "xNONE"; then
-    ac_prefix=$ac_default_prefix
+   ac_prefix=$ac_default_prefix
 fi
 AC_SUBST(ac_prefix)
 AC_DEFINE_UNQUOTED(CONFIG_PREFIX, ["$ac_prefix"], [Default installation prefix.])
@@ -34,11 +34,6 @@
 AC_ARG_ENABLE(qt4,
   AC_HELP_STRING([--enable-qt4], [enable Qt4 build (default=no)]),
   [ac_qt4="$enableval"],
-  [ac_qt4="no"])
-
-AC_ARG_ENABLE(qt5,
-  AC_HELP_STRING([--enable-qt5], [enable Qt5 build (default=yes)]),
-  [ac_qt5="$enableval"],
   [ac_qt5="yes"])
 
 
@@ -111,14 +106,11 @@
 
 
 # Checks for programs.
-AC_PROG_CC
 AC_PROG_CPP
 AC_PROG_CXX
 AC_PROG_CXXCPP
-AC_PROG_GCC_TRADITIONAL
 
 # Checks for languages.
-AC_LANG_C
 AC_LANG_CPLUSPLUS
 
 PKG_PROG_PKG_CONFIG
@@ -213,7 +205,7 @@
 if test "x$ac_qt4" = "xyes"; then
    AC_CACHE_CHECK([for Qt library version >= 4.4],
       ac_cv_qtversion, [
-      AC_TRY_LINK([#include "QtCore/qglobal.h"], [
+      AC_TRY_COMPILE([#include "QtCore/qglobal.h"], [
          #if QT_VERSION < 0x040400 || QT_VERSION >= 0x050000
          #error Qt library 4.4 or greater required.
          #endif
@@ -227,7 +219,7 @@
 if test "x$ac_qt5" = "xyes"; then
    AC_CACHE_CHECK([for Qt library version >= 5.1],
       ac_cv_qtversion, [
-      AC_TRY_LINK([#include "QtCore/qglobal.h"], [
+      AC_TRY_COMPILE([#include "QtCore/qglobal.h"], [
          #if QT_VERSION < 0x050100 || QT_VERSION >= 0x060000
          #error Qt library 5.1 or greater required.
          #endif