the service and protocol functions are defined also in other files,
and the protocol ones are actually non-nops elsewhere, so the weak
definitions in ent.c could have prevented the strong definitions from
getting pulled in and used in some static programs.
weak_alias(sethostent, setnetent);
weak_alias(gethostent, getnetent);
weak_alias(endhostent, endnetent);
-
-weak_alias(sethostent, setservent);
-weak_alias(gethostent, getservent);
-weak_alias(endhostent, endservent);
-
-weak_alias(sethostent, setprotoent);
-weak_alias(gethostent, getprotoent);
-weak_alias(endhostent, endprotoent);