Pretty much add a few new functions that help with listing/getting directory paths.

//Translators for Pre Mac OSX
char*  sdl_win32tomac(char* file);
char*  sdl_unixtomac(char* file);
// unix path conversion.
char*  sdl_mactoUnix(char* file);
char*  sdl_win32tounix(char* file);
// win32 path conversion.
char*  sdl_UnixtoWin32(char* file);
char*  sdl_MacToWin32(char* file);

//file listing functions.
char** sdl_listfiles(char* directory); // list of all files in a directory.
char** sdl_listfiles(char* directory, char* ext); // list of all files in a directory of a specified extension.
char** sdl_listdirectories(char* directory);// list directories in specified path.