Log message:
Remove @dirrm related logic.

Log message:
PKG_DESTDIR_SUPPORT seems to be working fine

Log message:
Make it build on DragonFly master.

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:
Comment out PKG_DESTDIR_SUPPORT.
PLIST generation in the post-install target is broken for destdir.
It tries to remove ${PREFIX}/bin et al.

Log message:
Add destdir support, mostly from PR 38523 by Aleksey Cheusov.

Log message:
Second round of explicit pax dependencies. As reminded by tnn@,
many packages used to use ${PAX}. Use the common way of directly calling
pax, it is created as tool after all.

Log message:
Fix more cases of non-chainable PKGSRC_COMPILER tests.

Log message:
Fix abusers of LOWER_OPSYS to check OPSYS or MACHINE_PLATFORM instead.

Log message:
Convert to use the features framework.