--- a/src/video/SDL_sysvideo.h	Sat Jul 22 19:03:31 2006 +0000
+++ b/src/video/SDL_sysvideo.h	Sat Jul 22 19:51:48 2006 +0000
@@ -55,6 +55,7 @@
 /* Define the SDL renderer structure */
 struct SDL_Renderer
 {
+    int (*ActivateRenderer) (SDL_Renderer * renderer);
     int (*CreateTexture) (SDL_Renderer * renderer, SDL_Texture * texture);
     int (*QueryTexturePixels) (SDL_Renderer * renderer, SDL_Texture * texture,
                                void **pixels, int *pitch);