cc -pthread  -Wall -Wextra -Werror=implicit-function-declaration sched/sched_get_priority_min.c -o sched/sched_get_priority_min -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE -lm -lpthread -lrt -lintl -liconv
sched/sched_get_priority_min.c: In function ‘main’:
sched/sched_get_priority_min.c:10:19: error: implicit declaration of function ‘sched_get_priority_min’ [-Wimplicit-function-declaration]
   10 |         int min = sched_get_priority_min(SCHED_RR);
      |                   ^~~~~~~~~~~~~~~~~~~~~~
sched/sched_get_priority_min.c:10:42: error: ‘SCHED_RR’ undeclared (first use in this function)
   10 |         int min = sched_get_priority_min(SCHED_RR);
      |                                          ^~~~~~~~
sched/sched_get_priority_min.c:10:42: note: each undeclared identifier is reported only once for each function it appears in