/ error	= setgid(gid);

.globl	_setgid
.globl	cerror

_setgid:
	mov	r5,-(sp)
	mov	sp,r5
	mov	4(r5),r0
	sys	setgid
	bec	1f
	jmp	cerror
1:
	clr	r0
	mov	(sp)+,r5
	rts	pc