[evolution-exchange] Bump gtk+ version requirement to 2.20.0

[Milan Crha <mcrha src gnome org>]

commit 1d7bb350bf178f79a40b12b27a0614d2a0990cf5
Author: Milan Crha <mcrha redhat com>
Date:   Fri Apr 9 09:39:05 2010 +0200

    Bump gtk+ version requirement to 2.20.0

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index ba59da7..5286515 100644
--- a/configure.ac
+++ b/configure.ac
@@ -15,7 +15,7 @@ m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 dnl Required Package Versions
 m4_define([glib_minimum_version], [2.16.0])
 m4_define([gthread_minimum_version], [2.16.0])
-m4_define([gtk_minimum_version], [2.18.0])
+m4_define([gtk_minimum_version], [2.20.0])
 m4_define([eds_minimum_version], [eex_version])
 m4_define([evo_minimum_version], [eex_version])
 m4_define([gconf_minimum_version], [2.0.0])		dnl XXX Just a Guess