cc -pthread  -Wall -Wextra -Werror=implicit-function-declaration time/timer_getoverrun.c -o time/timer_getoverrun -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE -lm -lpthread -lrt -lintl -liconv
relibc getrlimit(3, 0x7ffffffffc80): not implemented
relibc getrlimit(3, 0x7ffffffffba0): not implemented
relibc getrlimit(9, 0x7ffffffffb60): not implemented
relibc getrlimit(9, 0x7ffffffffb90): not implemented
relibc getrlimit(5, 0x7ffffffffb90): not implemented
relibc getrlimit(9, 0x7ffffffffb60): not implemented
time/timer_getoverrun.c: In function ‘on_signal’:
time/timer_getoverrun.c:15:25: error: implicit declaration of function ‘timer_getoverrun’ [-Werror=implicit-function-declaration]
   15 |         if ( (overrun = timer_getoverrun(timer)) < 0 )
      |                         ^~~~~~~~~~~~~~~~
time/timer_getoverrun.c: In function ‘main’:
time/timer_getoverrun.c:63:14: error: implicit declaration of function ‘clock_nanosleep’ [-Werror=implicit-function-declaration]
   63 |         if ( clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &expiration,
      |              ^~~~~~~~~~~~~~~
cc1: some warnings being treated as errors