1 files changed, 86 insertions, 0 deletions
diff --git a/m4/libqt.m4 b/m4/libqt.m4
new file mode 100644
index 0000000..b79e0a8
--- /dev/null
+++ b/m4/libqt.m4
@@ -0,0 +1,86 @@
+dnl file      : m4/libqt.m4
+dnl author    : Boris Kolpackov <boris@codesynthesis.com>
+dnl copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
+dnl license   : GNU GPL v2; see accompanying LICENSE file
+dnl
+dnl LIBQTCORE([ACTION-IF-FOUND[,ACTION-IF-NOT-FOUND]])
+dnl
+dnl
+AC_DEFUN([LIBQTCORE], [
+libqt_found=no
+
+AC_PATH_PROG([pkg_config],[pkg-config])
+
+AC_MSG_CHECKING([for QtCore])
+
+# First check for QtCore using default CPPFLAGS/LDFLAGS.
+#
+save_LIBS="$LIBS"
+LIBS="-lQtCore $LIBS"
+
+CXX_LIBTOOL_LINK_IFELSE(
+AC_LANG_SOURCE([[
+#include <string>
+#include <QString>
+
+int
+main ()
+{
+  QString qs ("test");
+  std::string ss (qs.toStdString ());
+  return ss.size () != 0;
+}
+]]),
+[
+libqt_found=yes
+])
+
+# If default CPPFLAGS/LDFLAGS didn't work, try to discover
+# them using pkg-config.
+#
+if test x"$libqt_found" = xno; then
+  LIBS="$save_LIBS"
+
+  if test x"$pkg_config" != x; then
+    if $pkg_config --exists QtCore; then
+      save_CPPFLAGS="$CPPFLAGS"
+      save_LIBS="$LIBS"
+
+      CPPFLAGS=`$pkg_config --cflags QtCore`
+      LIBS=`$pkg_config --libs QtCore`
+
+      CPPFLAGS="$CPPFLAGS $save_CPPFLAGS"
+      LIBS="$LIBS $save_LIBS"
+
+      CXX_LIBTOOL_LINK_IFELSE(
+AC_LANG_SOURCE([[
+#include <string>
+#include <QString>
+
+int
+main ()
+{
+  QString qs ("test");
+  std::string ss (qs.toStdString ());
+  return ss.size () != 0;
+}
+]]),
+[
+libqt_found=yes
+])
+     if test x"$libqt_found" = xno; then
+       CPPFLAGS="$save_CPPFLAGS"
+       LIBS="$save_LIBS"
+     fi
+    fi
+  fi
+fi
+
+if test x"$libqt_found" = xyes; then
+  AC_MSG_RESULT([yes])
+  $1
+else
+  AC_MSG_RESULT([no])
+  $2
+fi
+])dnl