From 1ab0aa6544994323e579555c9688b34d14cb5e69 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tim-Philipp=20M=C3=BCller?= <tim.muller@collabora.co.uk>
Date: Fri, 5 Nov 2010 00:24:31 +0000
Subject: [PATCH] configure: add --with-gtk option and default to Gtk+ 2.0
 while the 3.0 API is still in flux

https://bugzilla.gnome.org/show_bug.cgi?id=634014
---
 configure.ac | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 991d831763..45972c8b83 100644
--- a/configure.ac
+++ b/configure.ac
@@ -206,8 +206,17 @@ AC_SUBST(GSTPB_PREFIX)
 
 dnl GTK is optional and used in examples
 HAVE_GTK=NO
-PKG_CHECK_MODULES(GTK, gtk+-x11-3.0, HAVE_GTK=yes,
-    [PKG_CHECK_MODULES(GTK, gtk+-x11-2.0 >= 2.14.0, HAVE_GTK=yes,HAVE_GTK=no)])
+AC_MSG_CHECKING([which gtk+ version to compile examples against (optional)])
+AC_ARG_WITH([gtk],
+  AC_HELP_STRING([--with-gtk=3.0|2.0],
+                 [which gtk+ version to compile against (default: 2.0)]),
+  [case "$with_gtk" in
+      2.0|3.0) ;;
+      *) AC_MSG_ERROR([invalid gtk+ version specified]);;
+  esac],
+  [with_gtk=2.0])
+AC_MSG_RESULT([$with_gtk])
+PKG_CHECK_MODULES(GTK, gtk+-x11-$with_gtk, HAVE_GTK=yes, HAVE_GTK=no)
 AM_CONDITIONAL(HAVE_GTK, test "x$HAVE_GTK" = "xyes")
 
 dnl Needed for GtkBuilder to autoconnect signals