[clutter/clutter-1.16] build: Depend on Cogl 1.15.9

[Emmanuele Bassi <ebassi src gnome org>]

commit 8f88ada0c6bc18e39e126d92776c1d314de961e7
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Mon Sep 2 17:06:03 2013 +0100

    build: Depend on Cogl 1.15.9
    
    The laxy texture allocation has been removed from Cogl 1.15, so we need
    to depend on the new developers snapshot.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 01d9b9c..fbf9d99 100644
--- a/configure.ac
+++ b/configure.ac
@@ -136,7 +136,7 @@ AC_HEADER_STDC
 
 # required versions for dependencies
 m4_define([glib_req_version],           [2.37.3])
-m4_define([cogl_req_version],           [1.15.1])
+m4_define([cogl_req_version],           [1.15.9])
 m4_define([json_glib_req_version],      [0.12.0])
 m4_define([atk_req_version],            [2.5.3])
 m4_define([cairo_req_version],          [1.10])