Log message:
Update libtool to 1.5.22.  Too many changes for CVS commit logs; here's
some highlighted changes:

* Fixes minor /tmp race condition bug.
* Integrated Interix support; no longer requires pkgsrc hackery.
* shlibtool is a wrapper using the (now working) "--tag=disable-static".
* Several other bugs fixed, removing some pkgsrc-local changes.

Log message:
Add change from MirOS that resets $versuffix2 to empty if -avoid-version is used;
makes -avoid-version work properly on platforms using $versuffix2 (e.g., OpenBSD,
FreeBSD, DragonFly).  Bump PKGREVISION (and will bump LIBTOOL_REQD shortly).

MirOS change by Benny Siegert <bsiegert@mirbsd.org>.
Noted in private mail by Thorsten Glaser <tg@66h.42h.de>.

Log message:
libtool-base doesn't use a cache file at all as it is.

Log message:
On IRIX, don't use a cache-file, since configure bails out after
trying to reparse the cache.  Ugh.

Log message:
libtool-base 1.5.18nb4: Fix a really nasty bug on Interix;
hardcode_libdir_flag_spec used -h rather than the correct -rpath.

Fix provided in private mail by Thorsten Glaser.

Log message:
nb3: Add OS-specific fix for -pthread on DragonFly, based on work by
Joerg Sonnenberger <joerg@britannica.bec.de>.

Log message:
Remove the old tools framework and references to _USE_NEW_TOOLS.

Log message:
For packages that use GNU configure, don't bother adding "TOOL"
variables into CONFIGURE_ENV if the new tools framework already takes
care of adding them automatically.

Log message:
PKGREVISION bump missed in previous.

Log message:
libtool needs to know where echo is or else it searches the PATH for
it.  This value is embedded into the libtool script.  This was okay
on NetBSD, but was breaking on Solaris.  We now pass it the path to
the real echo via CONFIGURE_ENV, which on Solaris is a more featureful
echo.  Problem noted by Mark Davies in private mail.