[gtkglext] On error, exit with a message

[Mukund Sivaraman <muks src gnome org>]

commit 9f800220ab401c216fd16d0233cdb1d61e729b7a
Author: Mukund Sivaraman <muks banu com>
Date:   Wed Jul 21 20:02:58 2010 +0530

    On error, exit with a message

 gdk/gdkglinit.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/gdk/gdkglinit.c b/gdk/gdkglinit.c
index a2c72fa..f7ccea9 100644
--- a/gdk/gdkglinit.c
+++ b/gdk/gdkglinit.c
@@ -21,7 +21,6 @@
 #endif /* HAVE_CONFIG_H */
 
 #include <string.h>
-#include <stdlib.h>
 
 #include "gdkglprivate.h"
 #include "gdkglquery.h"
@@ -237,5 +236,5 @@ gdk_gl_init (int    *argc,
              char ***argv)
 {
   if (!gdk_gl_init_check (argc, argv))
-    exit (1);
+    g_error ("GdkGLExt library initialization fails.");
 }