Prevent frontend from starting game w/ >48 hogs
This is because the engine does not support >48 hogs (another bug), but at least this commit a common crash with useless/confusing error message.
#ifndef _SDLname_h_
#define _SDLname_h_
#if defined(__STDC__) || defined(__cplusplus)
#define NeedFunctionPrototypes 1
#endif
#define SDL_NAME(X) SDL_##X
#endif /* _SDLname_h_ */