Add a dummy function if SDL doesn't have STDIO support

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%404313

include/SDL_rwops.h

@@ -131,6 +131,9 @@ extern DECLSPEC SDL_RWops *SDLCALL SDL_RWFromFile(const char *file,
 #ifdef HAVE_STDIO_H
 extern DECLSPEC SDL_RWops *SDLCALL SDL_RWFromFP(FILE * fp,
                                                 SDL_bool autoclose);
+#else
+extern DECLSPEC SDL_RWops *SDLCALL SDL_RWFromFP(void * fp,
+                                                SDL_bool autoclose);
 #endif
 
 extern DECLSPEC SDL_RWops *SDLCALL SDL_RWFromMem(void *mem, int size);

src/file/SDL_rwops.c

@@ -497,6 +497,13 @@ SDL_RWFromFP(FILE * fp, SDL_bool autoclose)
     }
     return (rwops);
 }
+#else
+SDL_RWops *
+SDL_RWFromFP(void * fp, SDL_bool autoclose)
+{
+    SDL_SetError("SDL not compiled with stdio support");
+    return NULL;
+}
 #endif /* HAVE_STDIO_H */
 
 SDL_RWops *