From 8b914dfa307ef2e0b84ff7dc1632cb6ae29e7c3e Mon Sep 17 00:00:00 2001
From: Robert Bragg <robert@linux.intel.com>
Date: Fri, 23 Jul 2010 21:37:22 +0100
Subject: [PATCH] configure.ac: when checking for gl2ext.h include gl2.h

This makes sure we include gl2.h when looking for gl2ext.h since
gl2ext.h can't always be used standalone.
---
 configure.ac | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index b805f86be..a84c268a8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -433,7 +433,9 @@ AS_IF([test "x$COGL_DRIVER" = "xgles"],
               [
                 AC_CHECK_HEADERS([$cogl_gl_headers],
                                  [],
-                                 [AC_MSG_ERROR([Unable to locate required GLES headers])])
+                                 [AC_MSG_ERROR([Unable to locate required GLES headers])],
+                                 [[#include <GLES2/gl2.h>
+                                 ]])
 
                 FLAVOUR_LIBS="$FLAVOUR_LIBS -lGLESv2"
               ])