Hi, sorry, but your patch is a bit ugly... please look at the code below /* determine if tihs switch is followed by a separate argument */ in winegcc.c and understand what it does. specially with next_is_arg, is_linker_arg, .... Also the following is senseless: +int strstartswith(const char * str, const char * start) +{ + return strstr(str, start) == str; +} -- Best Regards, André Hentschel