--- a/include/SDL_pixels.h	Thu Jun 15 07:07:07 2006 +0000
+++ b/include/SDL_pixels.h	Fri Jun 16 06:00:31 2006 +0000
@@ -114,7 +114,7 @@
      (SDL_PIXELTYPE(format) == SDL_PixelType_Index8))
 
 #define SDL_ISPIXELFORMAT_FOURCC(format)    \
-    ((format) && !((format) & 0x8000000))
+    ((format) && !((format) & 0x80000000))
 
 enum
 {