cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations time/TIMER_ABSTIME.c -o time/TIMER_ABSTIME -D_POSIX_C_SOURCE=202405L  -lm -lpthread  -liconv
time/TIMER_ABSTIME.c:2:17: error: use of undeclared identifier 'TIMER_ABSTIME'
    2 | int const foo = TIMER_ABSTIME;
      |                 ^
1 error generated.