sdl.pas says it does this:
Code:
  SDLLibName = 'libSDL-1.2.0.dylib';
  {$linklib libSDL-1.2.0}
  {$linklib SDLmain}
  {$linkframework Cocoa}
  {$PASCALMAINNAME SDL_main}
I don't know enough about the framework/library business to say what that means. Atleast it'll try to link to libSDL-1.2.0. Try to see if you can find some libSDL-x file somewhere and see if it uses some other version number. 1.2.0 should be the major revision number they use, but I could be wrong