Function setjmp

freebsd/contrib/openzfs/module/lua/ldo.c:103–105

/* unsupported arches will build but not be able to run lua programs */
#if JMP_BUF_CNT == 1
int setjmp (label_t *buf) {
	return 1;
}

void longjmp (label_t * buf) {
	for (;;);