[SDL] Linking to SDL.dll

[Rainer Loritz]

> "Error: Unresolved external '_SDL_GetError' referenced from ..."
> 
> The reason seems to be the way this function is exported from the DLL
> (or, at least, handled by IMPLIB when creating SDL.lib from SDL.dll).

Indeed, there seems to be a bug in IMPLIB (possibly in ILINK32, too).

I solved the problem by an intermediate IMPDEF step:

IMPDEF -a SDL.def SDL.dll
IMPLIB -c SDL.lib SDL.def

Linking worked flawlessly after that. Apparently, the DLL extraction routine in
IMPDEF does not have the bug.