testwin.c: In function `main':
testwin.c:229: error: `SDL_Surface' undeclared (first use in this function)
testwin.c:229: error: `screen' undeclared (first use in this function)
testwin.c:235: error: `Uint32' undeclared (first use in this function)
testwin.c:235: error: parse error before "video_flags"
testwin.c:247: error: `video_flags' undeclared (first use in this function)
testwin.c:302: error: `SDL_HWPALETTE' undeclared (first use in this function)
testwin.c:307: error: `SDL_HWSURFACE' undeclared (first use in this function)
testwin.c:312: error: `SDL_DOUBLEBUF' undeclared (first use in this function)
testwin.c:317: error: `SDL_FULLSCREEN' undeclared (first use in this function)
testwin.c:324: error: `SDL_INIT_VIDEO' undeclared (first use in this function)
testwin.c:329: error: `SDL_Quit' undeclared (first use in this function)
testwin.c:353: error: `then' undeclared (first use in this function)
testwin.c:355: error: `now' undeclared (first use in this function)