From c7aaa1bc6b273afbaa6280dce68c2cf3dffd9abe Mon Sep 17 00:00:00 2001
From: fayjf <fayjf@7f0cb862-5218-0410-a997-914c9d46530a>
Date: Sat, 29 May 2010 02:07:21 +0000
Subject: [PATCH] Fixing "fgDestroyWindow" error per e-mail from John
 Tsiombikas dated Wed, 26 May 2010 13:16:28 +0200

git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@876 7f0cb862-5218-0410-a997-914c9d46530a
---
 freeglut/freeglut/src/freeglut_window.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/freeglut/freeglut/src/freeglut_window.c b/freeglut/freeglut/src/freeglut_window.c
index d7f969b..00bdfdd 100644
--- a/freeglut/freeglut/src/freeglut_window.c
+++ b/freeglut/freeglut/src/freeglut_window.c
@@ -1282,7 +1282,10 @@ void fgCloseWindow( SFG_Window* window )
     if( window->Window.Context )
         glXDestroyContext( fgDisplay.Display, window->Window.Context );
     XFree( window->Window.FBConfig );
-    XDestroyWindow( fgDisplay.Display, window->Window.Handle );
+
+    if( window->Window.Handle ) {
+        XDestroyWindow( fgDisplay.Display, window->Window.Handle );
+    }
     /* XFlush( fgDisplay.Display ); */ /* XXX Shouldn't need this */
 
 #elif TARGET_HOST_MS_WINDOWS