[gnome-themes-standard] build: Require GTK 3.6.2

[Jeremy Bicha <jbicha src gnome org>]

commit e2aea5cbb4edc4f1a17eb6b84eda13d4d70e0da5
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Sun Nov 25 12:14:50 2012 -0500

    build: Require GTK 3.6.2
    
    Without at least GTK 3.6.1, GTK apps segfault if the gtk theme
    is set to Adwaita 3.6.2
    
    https://bugzilla.gnome.org/show_bug.cgi?id=689027

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 1831e37..008dbd1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -38,7 +38,7 @@ 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=3.5.17
+GTK_VERSION_REQUIRED=3.6.2
 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])