cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations time/timer_gettime.c -o time/timer_gettime -D_POSIX_C_SOURCE=202405L  -lm -lpthread  -liconv
time/timer_gettime.c:5:21: error: expected identifier
    5 | int (*foo)(timer_t, struct itimerspec *) = timer_gettime;
      |                     ^
time/timer_gettime.c:5:44: error: use of undeclared identifier 'timer_gettime'; did you mean 'clock_gettime'?
    5 | int (*foo)(timer_t, struct itimerspec *) = timer_gettime;
      |                                            ^~~~~~~~~~~~~
      |                                            clock_gettime
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/_time.h:178:5: note: 'clock_gettime' declared here
  178 | int clock_gettime(clockid_t __clock_id, struct timespec *__tp);
      |     ^
2 errors generated.