cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations sys_types/clockid_t.c -o sys_types/clockid_t -D_POSIX_C_SOURCE=202405L  -lm -lpthread  -liconv
sys_types/clockid_t.c:2:1: error: unknown type name 'clockid_t'; did you mean 'clock_t'?
    2 | clockid_t* foo;
      | ^~~~~~~~~
      | clock_t
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/_types/_clock_t.h:31:33: note: 'clock_t' declared here
   31 | typedef __darwin_clock_t        clock_t;
      |                                 ^
1 error generated.