configure instead.

(isc_getipnum): Use it, to get rid of a warning.
(isc_gethostname): Ditto.
(isc_getportnum): Ditto.
(isc_getservice): Ditto.

Make Xenofarm ignore a few warnings in code that we didn't write.

	compiler warnings.

	the wrong type was used.

(l2g_expensive_set): Ditto.
(l2g_expensive_set): Ditto.

(main): Use atol, not atoi, when setting motd_of_lyskom.

(cache_sync_all): Replaced the local variable "i" with "ic" and
	"it", for loops over conferences and texts.
(init_cache): Changed type of i to unsigned long.  Changed type of
	motd_of_lyskom to Text_no.

isn't used.  This is an auto-generated file, and we can't help that it
includes a few unused labels and functions.  Ignore warning from
getopt about a function declaration that isn't a prototype.

the compat builds; added debug statements.

the string "(W)".

valgrind more happy.