[gtkglext] Fix type of argument passed to glXGetProcAddress()

[Mukund Sivaraman <muks src gnome org>]

commit b1145f0d39a8512f6bdef1bd71caa7d4b9eb1f27
Author: Mukund Sivaraman <muks banu com>
Date:   Sun Sep 27 09:39:40 2009 +0530

    Fix type of argument passed to glXGetProcAddress()

 gdk/x11/gdkglquery-x11.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gdk/x11/gdkglquery-x11.c b/gdk/x11/gdkglquery-x11.c
index 562ddf1..9f2e46c 100644
--- a/gdk/x11/gdkglquery-x11.c
+++ b/gdk/x11/gdkglquery-x11.c
@@ -288,7 +288,7 @@ gdk_gl_get_proc_address (const char *proc_name)
 
       if (glx_get_proc_address != NULL)
         {
-          proc_address = glx_get_proc_address (proc_name);
+          proc_address = glx_get_proc_address ((unsigned char *) proc_name);
           GDK_GL_NOTE (IMPL, g_message (" ** glXGetProcAddress () - %s",
                                         proc_address ? "succeeded" : "failed"));
           if (proc_address != NULL)
@@ -405,7 +405,7 @@ gdk_gl_get_proc_address (const char *proc_name)
 
       if (glx_get_proc_address != NULL)
         {
-          proc_address = glx_get_proc_address (proc_name);
+          proc_address = glx_get_proc_address ((unsigned char *) proc_name);
           GDK_GL_NOTE (IMPL, g_message (" ** glXGetProcAddress () - %s",
                                         proc_address ? "succeeded" : "failed"));
           if (proc_address != NULL)