* lib/poll.c (EOVERFLOW): Remove fallback.
* modules/poll (Depends-on): Add EOVERFLOW.
+ * lib/getugroups.c (EOVERFLOW): Remove fallback.
+ * modules/getugroups (Depends-on): Add EOVERFLOW.
+
* lib/getdelim.c (EOVERFLOW): Remove fallback.
* modules/getdelim (Depends-on): Add EOVERFLOW.