[cogl] configure: Updates listed glib dependency to 2.28

[Robert Bragg <rbragg src gnome org>]

commit f8c0cb6900f42ceede842362788f60d519a599a6
Author: Robert Bragg <robert linux intel com>
Date:   Mon Jan 16 22:08:39 2012 +0000

    configure: Updates listed glib dependency to 2.28
    
    Cogl depends on glib 2.28 for g_source_get_time() so this updates the
    glib dependency listed in configure.ac

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 755cb5f..8353694 100644
--- a/configure.ac
+++ b/configure.ac
@@ -81,7 +81,7 @@ AC_CONFIG_HEADERS(config.h)
 dnl ================================================================
 dnl Required versions for dependencies
 dnl ================================================================
-m4_define([glib_req_version],           [2.26.0])
+m4_define([glib_req_version],           [2.28.0])
 m4_define([pangocairo_req_version],     [1.20])
 m4_define([gi_req_version],             [0.9.5])
 m4_define([gdk_pixbuf_req_version],     [2.0])