--- a/src/video/cocoa/SDL_cocoavideo.h	Mon Feb 28 20:19:28 2011 -0800
+++ b/src/video/cocoa/SDL_cocoavideo.h	Mon Feb 28 21:48:02 2011 -0800
@@ -65,7 +65,7 @@
 } SDL_VideoData;
 
 /* Utility functions */
-NSImage * Cocoa_CreateImage(SDL_Surface * surface);
+extern NSImage * Cocoa_CreateImage(SDL_Surface * surface);
 
 #endif /* _SDL_cocoavideo_h */