cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations time/timezone.c -o time/timezone -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
time/timezone.c:8:14: error: ‘timezone’ undeclared here (not in a function)
    8 | long *foo = &timezone;
      |              ^~~~~~~~