Log message:
"user-destdir" is default these days

Log message:
Fix build with clang.

Log message:
No patching with sed, please

Log message:
Fix build with newer GCC

Log message:
audio/adplug: Fix DragonFly breakage

This commit allows adplug to build on DragonFly without changing the
binary package for any other platform, so no PKGREVISION bump is
required.

Log message:
Patch up some inline issues for clang.

Log message:
const correctness, required by clang

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 DESTDIR support.