http://www.jwz.org/xscreensaver/xscreensaver-5.07.tar.gz

[xscreensaver] / OSX / XScreenSaverGLView.m

diff --git a/OSX/XScreenSaverGLView.m b/OSX/XScreenSaverGLView.m
index 8d17eb64065f38298c2d1bf13204c6cb9370fb6b..b7ac9c1e49dad4b1e02251f4d27db94d84ab3c42 100644 (file)
--- a/OSX/XScreenSaverGLView.m
+++ b/OSX/XScreenSaverGLView.m
@@ -1,4 +1,4 @@
-/* xscreensaver, Copyright (c) 2006, 2007 Jamie Zawinski <jwz@jwz.org>
+/* xscreensaver, Copyright (c) 2006-2008 Jamie Zawinski <jwz@jwz.org>
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
@@ -156,8 +156,10 @@ init_GL (ModeInfo *mi)
   // Enable multi-threading, if possible.  This runs most OpenGL commands
   // and GPU management on a second CPU.
   {
+#   ifndef  kCGLCEMPEngine
+#    define kCGLCEMPEngine 313  // Added in MacOS 10.4.8 + XCode 2.4.
+#   endif
     CGLContextObj cctx = CGLGetCurrentContext();
-#   define kCGLCEMPEngine 313  // #### new in MacOS 10.4.8 + XCode 2.4
     CGLError err = CGLEnable (cctx, kCGLCEMPEngine);
     if (err != kCGLNoError) {
       NSLog (@"enabling multi-threaded OpenGL failed: %d", err);