[gnome-desktop] build: Require the newest gdk-pixbuf

[Bastien Nocera <hadess src gnome org>]

commit 70d46d5cd8bac0de99fed21ee2247ec74b03991b
Author: Bastien Nocera <hadess hadess net>
Date:   Mon Oct 5 14:15:57 2015 +0200

    build: Require the newest gdk-pixbuf
    
    Current development version of gdk-pixbuf is required for the
    GDK_PIXBUF_ERROR_INCOMPLETE_ANIMATION error.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index b75e203..f49b423 100644
--- a/configure.ac
+++ b/configure.ac
@@ -113,7 +113,7 @@ GLIB_TESTS
 dnl If you add a version number here, you *must* add an AC_SUBST line for
 dnl it too, or it will never make it into the spec file!
 
-GDK_PIXBUF_REQUIRED=2.21.3
+GDK_PIXBUF_REQUIRED=2.33.0
 GTK_REQUIRED=3.3.6
 GLIB_REQUIRED=2.44.0
 XRANDR_REQUIRED=1.3