From 5ad587d20814ec1fac9594fea53db3436a96dedd Mon Sep 17 00:00:00 2001
From: spanne <spanne@7f0cb862-5218-0410-a997-914c9d46530a>
Date: Sat, 28 Feb 2009 17:09:15 +0000
Subject: [PATCH] Do not try to destroy a GLX context when there is none, e.g.
 when glXCreateContextAttribsARB is not there.

git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@785 7f0cb862-5218-0410-a997-914c9d46530a
---
 freeglut/freeglut/src/freeglut_window.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/freeglut/freeglut/src/freeglut_window.c b/freeglut/freeglut/src/freeglut_window.c
index 8027e6b..cc73b88 100644
--- a/freeglut/freeglut/src/freeglut_window.c
+++ b/freeglut/freeglut/src/freeglut_window.c
@@ -1025,7 +1025,8 @@ void fgCloseWindow( SFG_Window* window )
 {
 #if TARGET_HOST_POSIX_X11
 
-    glXDestroyContext( fgDisplay.Display, window->Window.Context );
+    if( window->Window.Context )
+        glXDestroyContext( fgDisplay.Display, window->Window.Context );
     XFree( window->Window.FBConfig );
     XDestroyWindow( fgDisplay.Display, window->Window.Handle );
     /* XFlush( fgDisplay.Display ); */ /* XXX Shouldn't need this */