Log message:
Remove workaround for compiler bug in gcc2 on sparc64.

Log message:
Restore BUILDLINK_LDADD.db4.

It is used by mk/bdb.buildlink3.mk:
BDB_LIBS=       ${BUILDLINK_LDADD.${BDB_TYPE}}
which is then used e.g. by p5-BerkeleyDB:
MAKE_ENV+=      BERKELEYDB_NAME=${BDB_LIBS:Q}

Log message:
don't set BUILDLINK_LDADD/BUILDLINK_LIBS -- this ends up in the LIBS
environment variable which makes (at least if GNU configure is
used the common way) that everything in the pkg gets linked against db4,
whether needed or not, which causes hidden dependencies and strange errors

Log message:
Make it build with DragonFly master.

Log message:
Remove @dirrm entries from PLISTs

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:
add 2 more patches from the distribution site, fixing a deadlock
and a segfault

Log message:
Fix RCS Id in patch-ab.