Log message:
Recursive bump for libltdl

Log message:
Fix build with libtool 2.2.

Log message:
Remove @dirrm entries from PLISTs

Log message:
Recursive ABI depends update and PKGREVISION bump for readline-6.0 shlib
major change.

Reported by Robert Elz in PR 41345.

Log message:
Add PREV_PKGPATH and/or SUPERSEDES for various packages that
were moved or renamed.

This was for some from 2008 and 2009 and one from 2001.

Also I noticed that a CHANGES entry was wrong as said "Renamed"
when should have said "Moved" (lua-OSBF) because PKGBASE stayed the
same.

Log message:
Simply and speed up buildlink3.mk files and processing.
This changes the buildlink3.mk files to use an include guard for the
recursive include. The use of BUILDLINK_DEPTH, BUILDLINK_DEPENDS,
BUILDLINK_PACKAGES and BUILDLINK_ORDER is handled by a single new
variable BUILDLINK_TREE. Each buildlink3.mk file adds a pair of
enter/exit marker, which can be used to reconstruct the tree and
to determine first level includes. Avoiding := for large variables
(BUILDLINK_ORDER) speeds up parse time as += has linear complexity.
The include guard reduces system time by avoiding reading files over and
over again. For complex packages this reduces both %user and %sys time to
half of the former time.

Log message:
Mark as destdir ready.

Log message:
make sure guile can find its loadable modules

Log message:
Make sure shared libs are found and also fix a PLIST problem.  Bump
pkgrevision.

Log message:
Import guile-1.6.8 as guile16-1.6.8 as part of getting ready to update
lang/guile to 1.8.1.  This package will be available for those which will
not work with guile-1.8.x.