* ltconfig.in (need_lib_prefix, need_version,

	* ltconfig.in (need_lib_prefix, need_version,
 	deplibs_check_method): default to unknown, so that we're
 	remembered that this needs porting; unknown is interpreted as yes,
 	yes and none, respectively
	(freebsd2*, freebsd3*, sunos4*, need_version): set to yes
	(freebsd2*, freebsd3*, library_names_spec): libraries without a
	version number are not used by `ld'; add $versuffix;
	Reported by Ben Jackson <ben@ben.com>
	* ltmain.in (deplibs_check_method): alias unknown to none
	(need_version): if vinfo was not provided and release info was,
	zero out versuffix only if we don't need_version.
	* doc/libtool.texi: document what `unknown' means