[gnome-themes-standard] build: bump required GTK version

[Cosimo Cecchi <cosimoc src gnome org>]

commit 83e563faa82b819e006e0dd3a6194e7326839c78
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Thu Aug 22 15:06:17 2013 +0100

    build: bump required GTK version
    
    https://bugzilla.gnome.org/show_bug.cgi?id=704782

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index f01812d..1b00ad8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -35,7 +35,7 @@ AC_MSG_CHECKING([building gtk3 engine])
 AM_CONDITIONAL(GTK3_ENGINE, test "x$enable_gtk3_engine" = "xyes")
 AC_MSG_RESULT([$enable_gtk3_engine])
 
-GTK_VERSION_REQUIRED=3.9.3
+GTK_VERSION_REQUIRED=3.9.12
 if test "x$enable_gtk3_engine" = "xyes"; then
   PKG_CHECK_MODULES([GTK3_ENGINE], [gtk+-3.0 >= $GTK_VERSION_REQUIRED librsvg-2.0])
   PKG_CHECK_MODULES([HIGHCONTRAST], [cairo gio-2.0 gdk-pixbuf-2.0 gdk-3.0])