int fdset_put(FDSet *s, int fd);
int fdset_put_dup(FDSet *s, int fd);
-int fdset_consume(FDSet *s, int fd);
+// UNNEEDED int fdset_consume(FDSet *s, int fd);
bool fdset_contains(FDSet *s, int fd);
int fdset_remove(FDSet *s, int fd);
int fdset_new_array(FDSet **ret, int *fds, unsigned n_fds);
int fdset_new_fill(FDSet **ret);
-int fdset_new_listen_fds(FDSet **ret, bool unset);
+// UNNEEDED int fdset_new_listen_fds(FDSet **ret, bool unset);
int fdset_cloexec(FDSet *fds, bool b);
-int fdset_close_others(FDSet *fds);
+// UNNEEDED int fdset_close_others(FDSet *fds);
unsigned fdset_size(FDSet *fds);
-bool fdset_isempty(FDSet *fds);
+// UNNEEDED bool fdset_isempty(FDSet *fds);
int fdset_iterate(FDSet *s, Iterator *i);