$OpenBSD: patch-libfsemu_include_fs_glee_h,v 1.1 2019/01/31 13:45:01 jsg Exp $

Mesa >= 18.2.5 has newer OpenGL headers from Khronos which change the
include guards.

Index: libfsemu/include/fs/glee.h
--- libfsemu/include/fs/glee.h.orig
+++ libfsemu/include/fs/glee.h
@@ -61,7 +61,9 @@
     #include <OpenGL/gl.h>
 #else // GLX
     #define __glext_h_  /* prevent glext.h from being included  */
+    #define __gl_glext_h_  /* prevent glext.h from being included  */
     #define __glxext_h_ /* prevent glxext.h from being included */
+    #define __glx_glxext_h_ /* prevent glxext.h from being included */
     #define GLX_GLXEXT_PROTOTYPES
     #include <GL/gl.h>
     #include <GL/glx.h>
