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 -lrt -lintl -liconv
sched/sched_setparam.c: In function ‘main’:
sched/sched_setparam.c:11:14: error: implicit declaration of function ‘sched_getparam’ [-Wimplicit-function-declaration]
   11 |         if ( sched_getparam(0, &params) < 0 )
      |              ^~~~~~~~~~~~~~
sched/sched_setparam.c:17:14: error: implicit declaration of function ‘sched_setparam’ [-Wimplicit-function-declaration]
   17 |         if ( sched_setparam(0, &params) < 0 )
      |              ^~~~~~~~~~~~~~