[gnome-system-tools] Switch to GTK+3

[Milan Bouchet-Valat <milanbv src gnome org>]

commit 85b99049e1c65e57cc5b4198e6ff66a98c5714fe
Author: Milan Bouchet-Valat <nalimilan club fr>
Date:   Sat Dec 11 19:55:51 2010 +0100

    Switch to GTK+3
    
    All backward-compatible changes have been done. Build fixes that
    only work with GTK+3 follow.

 configure.in |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/configure.in b/configure.in
index ab73074..68f53a2 100644
--- a/configure.in
+++ b/configure.in
@@ -32,7 +32,7 @@ GLIB_GSETTINGS
 
 STB_REQUIRED=2.10.1
 LIBOOBS_REQUIRED=2.31.91
-GTK_REQUIRED=2.19.7
+GTK_REQUIRED=2.91
 GLIB_REQUIRED=2.25.3
 DBUS_REQUIRED=0.32
 POLICYKIT_GTK_REQUIRED=0.92
@@ -78,7 +78,7 @@ dnl Check for Module versions
 dnl =====================================================
 
 PKG_CHECK_MODULES(GST_DEPENDS,[
-			   gtk+-2.0 >= $GTK_REQUIRED
+			   gtk+-3.0 >= $GTK_REQUIRED
 			   gmodule-export-2.0
 			   gio-2.0 >= $GLIB_REQUIRED
 			   pango