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:37:44: warning: passing argument 2 of 'timer_create' from incompatible pointer type [-Wincompatible-pointer-types]
   37 |         if ( timer_create(CLOCK_MONOTONIC, &event, &timer) < 0 )
      |                                            ^~~~~~
      |                                            |
      |                                            struct sigevent *
In file included from /usr/include/signal.h:7,
                 from time/timer_getoverrun.c:3:
/usr/include/time.h:244:61: note: expected 'const struct sigevent *' but argument is of type 'struct sigevent *'
  244 | int timer_create(clockid_t clock_id, const struct sigevent *evp, timer_t *timerid);
      |                                      ~~~~~~~~~~~~~~~~~~~~~~~^~~
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