cc -pipe -O   -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations time/timer_getoverrun.c -o time/timer_getoverrun -D_POSIX_C_SOURCE=202405L  -lm -lpthread -lrt  -lrt -lcrypt
time/timer_getoverrun.c:5:23: error: 'timer_getoverrun' undeclared here (not in a function)
 int (*foo)(timer_t) = timer_getoverrun;
                       ^~~~~~~~~~~~~~~~