[clutter] Bump up the Cogl dependency

[Emmanuele Bassi <ebassi src gnome org>]

commit dbf2ccfd59294a0b5a98cbc8f67965809c965df8
Author: Emmanuele Bassi <ebassi linux intel com>
Date:   Fri Jul 1 17:26:10 2011 +0100

    Bump up the Cogl dependency
    
    We need 1.7.2 at least.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index bcfd217..4903250 100644
--- a/configure.ac
+++ b/configure.ac
@@ -111,7 +111,7 @@ AC_HEADER_STDC
 
 # required versions for dependencies
 m4_define([glib_req_version],           [2.26.0])
-m4_define([cogl_req_version],           [1.6.0])
+m4_define([cogl_req_version],           [1.7.2])
 m4_define([json_glib_req_version],      [0.12.0])
 m4_define([atk_req_version],            [1.17])
 m4_define([cairo_req_version],          [1.10])