1 files changed, 2 insertions, 8 deletions

diff --git a/configure.ac b/configure.ac
index 8cc98a01..fdcaac53 100644
--- a/configure.ac
+++ b/configure.ac
@@ -31,6 +31,7 @@ AC_PROG_AWK
 AM_PROG_CC_C_O
 AC_PROG_MKDIR_P
 AC_PROG_CPP
+AC_PROG_CC_C99
 AC_PROG_INSTALL
 AC_PROG_LN_S
 AC_PROG_MAKE_SET
@@ -242,7 +243,7 @@ AC_SUBST(QR_LIBS)
 
 AC_MSG_CHECKING(for gtk)
 without_gtk=true
-AM_PATH_GTK_3_0([3.0.0],without_gtk=false,)
+PKG_CHECK_MODULES([GTK], [gtk+-3.0])
 
 # test for libunique
 AC_ARG_WITH([libunique], AC_HELP_STRING([--without-libunique], [disable libunique]))
@@ -251,13 +252,6 @@ if test x$with_libunique != xno; then
   PKG_CHECK_MODULES([unique], [unique-3.0], AC_DEFINE(HAVE_LIBUNIQUE, 1, [Define if libunique is available]), AC_MSG_WARN([libunique would be nice to have]))
 fi
 
-AM_CONDITIONAL(HAVE_GTK, test x$without_gtk != xtrue)
-if test $without_gtk != true
-then
-  AC_DEFINE_UNQUOTED([HAVE_GTK], 1, [We have GTK])
-else
-  AC_MSG_ERROR(Cannot find GTK: Is pkg-config in path?)
-fi
 CFLAGS="$CFLAGS $GTK_CFLAGS"
 CPPFLAGS="$CPPFLAGS $GTK_CFLAGS"
 LIBS="$LIBS $GTK_LIBS"