set	prototyped
hdr	nc,exec_attr
mem	exception.name,_exception.name math.h
lib	setreuid,setregid,nice,sigflag,fork,spawnveg
lib	pathnative,pathposix,uwin_path,uwin_unpath,fts_notify
lib	fchdir

reference	unistd.h

extern	nice		int	(int)
extern	setreuid	int	(uid_t,uid_t)
extern	setregid	int	(gid_t,gid_t)