cc -pthread -Wall -Wextra -Werror=implicit-function-declaration sched/sched_setparam.c -o sched/sched_setparam -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE -lm -lpthread -lnetwork -lbsd -latomic sched/sched_setparam.c: In function 'main': sched/sched_setparam.c:11:14: error: implicit declaration of function 'sched_getparam'; did you mean 'sched_getcpu'? [-Werror=implicit-function-declaration] 11 | if ( sched_getparam(0, ¶ms) < 0 ) | ^~~~~~~~~~~~~~ | sched_getcpu sched/sched_setparam.c:17:14: error: implicit declaration of function 'sched_setparam' [-Werror=implicit-function-declaration] 17 | if ( sched_setparam(0, ¶ms) < 0 ) | ^~~~~~~~~~~~~~ cc1: some warnings being treated as errors