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.
- better TCP fallback, improved TSIG support
- namespace cleanup
- bugfixes
Require the new version and switch to normal runtime dependencies as it
is normally linked dynamically.
The goal of ldns is to simplify DNS programming, it supports recent
RFCs like the DNSSEC documents, and allows developers to easily
create software conforming to current RFCs, and experimental software
for current Internet Drafts. A secondary benefit of using ldns is
speed; ldns is written in C it should be a lot faster than Perl.
