cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations pthread/pthread_mutex_clocklock.c -o pthread/pthread_mutex_clocklock -D_POSIX_C_SOURCE=202405L  -lm -lpthread  -liconv
pthread/pthread_mutex_clocklock.c:5:85: error: use of undeclared identifier 'pthread_mutex_clocklock'
    5 | int (*foo)(pthread_mutex_t *restrict, clockid_t, const struct timespec *restrict) = pthread_mutex_clocklock;
      |                                                                                     ^
1 error generated.