cc -O2 -pipe -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations time/getdate.c -o time/getdate -D_POSIX_C_SOURCE=202405L  -lm -lpthread -lrt  -lstdthreads -lcrypt
time/getdate.c:11:35: error: use of undeclared identifier 'getdate'
   11 | struct tm *(*foo)(const char *) = getdate;
      |                                   ^
1 error generated.