scm_c_define_gsubr ("SDL_WM_SetCaption", 2, 0, 0, gacela_SDL_WM_SetCaption);
scm_c_define_gsubr ("SDL_Flip", 1, 0, 0, gacela_SDL_Flip);
scm_c_define_gsubr ("SDL_Delay", 1, 0, 0, gacela_SDL_Delay);
scm_c_define_gsubr ("SDL_WM_SetCaption", 2, 0, 0, gacela_SDL_WM_SetCaption);
scm_c_define_gsubr ("SDL_Flip", 1, 0, 0, gacela_SDL_Flip);
scm_c_define_gsubr ("SDL_Delay", 1, 0, 0, gacela_SDL_Delay);