cc -pipe -O   -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations time/timer_gettime.c -o time/timer_gettime -D_POSIX_C_SOURCE=202405L  -lm -lpthread -lrt  -lrt -lcrypt
time/timer_gettime.c:5:44: error: 'timer_gettime' undeclared here (not in a function); did you mean 'clock_gettime'?
 int (*foo)(timer_t, struct itimerspec *) = timer_gettime;
                                            ^~~~~~~~~~~~~
                                            clock_gettime