[gegl] Require glib 2.22.0 or newer.

[Øyvind Kolås <ok src gnome org>]

commit bd2d4a07f2ca2f3d7aa3030417b53f2e1fe5b20a
Author: �yvind Kolås <pippin gimp org>
Date:   Fri Nov 27 13:38:30 2009 +0000

    Require glib 2.22.0 or newer.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 38146ba..271a95b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -38,7 +38,7 @@ m4_define([gimp_full_name], [Generic Graphical Library])
 
 # required versions of external libraries
 m4_define([babl_required_version], [0.1.0])
-m4_define([glib_required_version], [2.16.1])
+m4_define([glib_required_version], [2.22.0])
 m4_define([gtk_required_version], [2.8.6])
 m4_define([lua_required_version], [5.1.0])
 m4_define([cairo_required_version], [0.0.0])