cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations pthread/pthread_getcpuclockid.c -o pthread/pthread_getcpuclockid -D_POSIX_C_SOURCE=202405L  -lm -lpthread  -liconv
pthread/pthread_getcpuclockid.c:6:38: error: use of undeclared identifier 'pthread_getcpuclockid'; did you mean 'pthread_getspecific'?
    6 | int (*foo)(pthread_t, clockid_t *) = pthread_getcpuclockid;
      |                                      ^~~~~~~~~~~~~~~~~~~~~
      |                                      pthread_getspecific
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/pthread.h:367:17: note: 'pthread_getspecific' declared here
  367 | void* _Nullable pthread_getspecific(pthread_key_t);
      |                 ^
pthread/pthread_getcpuclockid.c:6:7: error: incompatible function pointer types initializing 'int (*)(pthread_t, clockid_t *)' (aka 'int (*)(struct _opaque_pthread_t *, clockid_t *)') with an expression of type 'void * _Nullable (pthread_key_t)' (aka 'void * _Nullable (unsigned long)') [-Wincompatible-function-pointer-types]
    6 | int (*foo)(pthread_t, clockid_t *) = pthread_getcpuclockid;
      |       ^                              ~~~~~~~~~~~~~~~~~~~~~
2 errors generated.