--- a/src/video/SDL_gamma.c	Fri Aug 08 15:01:14 2003 +0000
+++ b/src/video/SDL_gamma.c	Fri Aug 08 15:08:41 2003 +0000
@@ -151,7 +151,7 @@
 	return succeeded;
 }
 
-int SDL_SetGammaRamp(Uint16 *red, Uint16 *green, Uint16 *blue)
+int SDL_SetGammaRamp(const Uint16 *red, const Uint16 *green, const Uint16 *blue)
 {
 	int succeeded;
 	SDL_VideoDevice *video = current_video;