From a74878aece42e61641739ca3c243e66d7e2c38b0 Mon Sep 17 00:00:00 2001
From: spanne <spanne@7f0cb862-5218-0410-a997-914c9d46530a>
Date: Wed, 5 Nov 2008 18:05:36 +0000
Subject: [PATCH] Make freeglut compile under Cygwin, which has an ancient GLX
 header

git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@750 7f0cb862-5218-0410-a997-914c9d46530a
---
 freeglut/freeglut/src/freeglut_internal.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/freeglut/freeglut/src/freeglut_internal.h b/freeglut/freeglut/src/freeglut_internal.h
index 8330e9d..c48d79b 100644
--- a/freeglut/freeglut/src/freeglut_internal.h
+++ b/freeglut/freeglut/src/freeglut_internal.h
@@ -101,6 +101,14 @@
 #    ifdef HAVE_X11_EXTENSIONS_XF86VMODE_H
 #        include <X11/extensions/xf86vmode.h>
 #    endif
+/* If GLX is too old, we will fail during runtime when multisampling
+   is requested, but at least freeglut compiles. */
+#    ifndef GLX_SAMPLE_BUFFERS
+#        define GLX_SAMPLE_BUFFERS 0x80A8
+#    endif
+#    ifndef GLX_SAMPLES
+#        define GLX_SAMPLES 0x80A9
+#    endif
 
 #endif