cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations unistd/setreuid.c -o unistd/setreuid -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
unistd/setreuid.c:11:28: error: ‘setreuid’ undeclared here (not in a function); did you mean ‘seteuid’?
   11 | int (*foo)(uid_t, uid_t) = setreuid;
      |                            ^~~~~~~~
      |                            seteuid