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