Fix to stop fgSetWindow(NULL) crashing on X11.

git-svn-id: svn+ssh://svn.code.sf.net/p/freeglut/code/trunk/freeglut/freeglut@175 7f0cb862-5218-0410-a997-914c9d46530a

diff --git a/src/freeglut_window.c b/src/freeglut_window.c
index 21b3006..eda79f2 100644 (file)
--- a/src/freeglut_window.c
+++ b/src/freeglut_window.c
@@ -306,6 +306,8 @@ GLboolean fgSetupPixelFormat( SFG_Window* window, GLboolean checkOnly, unsigned
 void fgSetWindow ( SFG_Window *window )
 {
 #if TARGET_HOST_UNIX_X11
+  if ( window )
+  {
     /*
         * Make the selected window's GLX context the current one
      */
@@ -314,7 +316,7 @@ void fgSetWindow ( SFG_Window *window )
         window->Window.Handle,
         window->Window.Context
     );
-
+  }
 #elif TARGET_HOST_WIN32
        /*
         * Release the previous' context's device context