cc -pthread -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations unistd/setresuid.c -o unistd/setresuid -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv unistd/setresuid.c:11:35: error: ‘setresuid’ undeclared here (not in a function); did you mean ‘seteuid’? 11 | int (*foo)(uid_t, uid_t, uid_t) = setresuid; | ^~~~~~~~~ | seteuid