HelenOS sources

WIFEXITED         238 uspace/app/sbi/src/os/posix.c 	if (WIFEXITED(status) && WEXITSTATUS(status) != 0) {
WIFEXITED         167 uspace/lib/bithenge/src/failure.c 	if (WIFEXITED(status) && WEXITSTATUS(status) == 1)
WIFEXITED         124 uspace/lib/pcut/src/os/unix.c 	if (WIFEXITED(status)) {