[gnome-shell] Bump GTK+ minimum version to 2.91.7

[Owen Taylor <otaylor src gnome org>]

commit b1dc2d967e73b4f53d890d01745f00f7e25fcecf
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Wed Dec 22 16:38:17 2010 -0500

    Bump GTK+ minimum version to 2.91.7
    
    Needed for new gdk_x11_window_* functions.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index f78ec43..ae4f3a8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -61,7 +61,7 @@ CLUTTER_MIN_VERSION=1.5.8
 GOBJECT_INTROSPECTION_MIN_VERSION=0.6.11
 GJS_MIN_VERSION=0.7
 MUTTER_MIN_VERSION=2.91.0
-GTK_MIN_VERSION=2.91.0
+GTK_MIN_VERSION=2.91.7
 GIO_MIN_VERSION=2.25.9
 
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