* configure.in: check for hstrerror.

	* configure.in: check for hstrerror.

	* socket.c (scm_htons, scm_ntohs, scm_htonl, scm_ntohl): new
	functions for network data conversion.

	* numbers.c (scm_num2long, scm_num2longlong):
	throw out-of-range instead of wrong-type-arg if appropriate.
	(scm_iint2str): handle -2^31 correctly.
	(scm_num2long): handle -2^31 bignum correctly.
	(scm_num2long_long): rewrite the bigdig case: basically copied
	from scm_num2long.
	numbers.h: (SCM_BITSPERLONGLONG): deleted.

	* unif.c (rapr1): use sprintf instead of intprint for unsigned
	longs: intprint can't cope with large values.

	* numbers.c (scm_num2ulong): check more consistently that the
	input is not negative.  if it is, throw out-of-range instead of
	wrong-type-arg.

	* ramap.c (scm_array_fill_int): don't limit fill to INUM for
	uvect, ivect or llvect.
	Check that fill doesn't overflow short uniform array.

	* __scm.h: add another long to the definition of long_long and
	ulong_long.

	* unif.c (scm_raprin1): use 'l' instead of "long_long" in the
	print representation of llvect.  read can't handle more than
	one character.
	(scm_dimensions_to_uniform_array): make "fill" an optional argument
	instead of a rest argument.

	* tags.h (scm_tc7_llvect): wasn't defined anywhere, so use the free
	tag 29 for now.

	* __scm.h: don't mention LONGLONGS.

	* unif.c, numbers.c, eq.c, gc.c, print.c, eval.c, ramap.c:
	replace LONGLONGS with HAVE_LONG_LONGS as set by configure.

	* net_db.c (scm_inet_aton): throw errors using the misc-error key
	instead of system-error.  inet_aton doesn't set errno.
	system-error isn't right in gethost either, since it's throwing
	the value of h_errno instead of errno. so:
	(scm_host_not_found_key, scm_try_again_key,
	scm_no_recovery_key, scm_no_data_key): new error keys.
	(scm_resolv_error): new procedure, use the new keys.
	(scm_gethost): call scm_resolv_error not scm_syserror_msg.

	* error.c: (various): use scm_cons instead of scm_listify
	to build short lists.

	* boot-9.scm (read-hash-extend to set up arrays): add 'l' for
	long_long uniform vectors.

	* networking.scm (sethostent, setnetent, setprotoent, setservent):
	take an optional argument STAYOPEN.  default is #f.

	* readline.c (scm_init_readline): set rl_readline_name to Guile,
	to allow conditionals in  .inputrc.