From 178c49a4306b2e9b13989017022ee191acb111dc Mon Sep 17 00:00:00 2001
From: ehofman <ehofman>
Date: Sun, 31 Jul 2005 08:46:37 +0000
Subject: [PATCH] Fix a problem with systems that don't define GLXPbufferSGIX
 or GLXFBConfigSGIX

---
 simgear/screen/extensions.hxx | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/simgear/screen/extensions.hxx b/simgear/screen/extensions.hxx
index cf633c11..1391a6a8 100644
--- a/simgear/screen/extensions.hxx
+++ b/simgear/screen/extensions.hxx
@@ -429,10 +429,14 @@ typedef BOOL (APIENTRY * wglSetPbufferAttribARBProc) (HPBUFFERARB hPbuffer, cons
 #endif
 
 #ifndef GLXPbuffer
-#define GLXPbuffer GLXPbufferSGIX
+# ifdef GLXPbufferSGIX
+#  define GLXPbuffer GLXPbufferSGIX
+# endif
 #endif
 #ifndef GLXFBConfig
-#define GLXFBConfig GLXFBConfigSGIX
+# ifdef GLXFBConfigSGIX
+#  define GLXFBConfig GLXFBConfigSGIX
+# endif
 #endif
 
 typedef GLXFBConfig *(*glXChooseFBConfigProc) (Display *dpy, int screen, int *attribList, int *nitems);
-- 
2.39.5