$OpenBSD: patch-include_GL_freeglut_ext_h,v 1.1 2012/05/01 16:10:07 pascal Exp $
--- include/GL/freeglut_ext.h.orig	Mon Apr 30 20:39:58 2012
+++ include/GL/freeglut_ext.h	Mon Apr 30 20:40:07 2012
@@ -163,7 +163,7 @@ FGAPI void    FGAPIENTRY glutSolidCylinder( GLdouble r
 /*
  * Extension functions, see freeglut_ext.c
  */
-typedef void (*GLUTproc)();
+typedef void (*GLUTproc)(void);
 FGAPI GLUTproc FGAPIENTRY glutGetProcAddress( const char *procName );
 
 /*