build: PASS
conformance/interfaces/sem_post/8-1: build: PASS
link: FAILED
conformance/interfaces/sem_post/8-1: link: FAILED: Linker output:
ld: error: undefined symbol: sched_setscheduler
>>> referenced by 8-1.c
>>>               conformance/interfaces/sem_post/8-1.o:(set_my_prio)
>>> referenced by 8-1.c
>>>               conformance/interfaces/sem_post/8-1.o:(child_fn)
>>> referenced by 8-1.c
>>>               conformance/interfaces/sem_post/8-1.o:(main)

ld: error: undefined symbol: sched_getparam
>>> referenced by 8-1.c
>>>               conformance/interfaces/sem_post/8-1.o:(get_my_prio)
>>> referenced by 8-1.c
>>>               conformance/interfaces/sem_post/8-1.o:(child_fn)
cc: error: linker command failed with exit code 1 (use -v to see invocation)