Log message:
Drop superfluous PKG_DESTDIR_SUPPORT, "user-destdir" is default these days.

Log message:
Changes 7.6.4:
Bug fixes

Log message:
Add inet6 to default suggested options. It's 2012.

Log message:
On Interix, it is impossible to build with HAVE_IPV6 due to missing
neither getipnodebyname(3) nor gethostbyname2(3).

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 support for user destination directory installation.
Patch provided by Aleksey Cheusov in PR pkg/39905.

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

Log message:
Convert packages that test and use USE_INET6 to use the options framework
and to support the "inet6" option instead.

Remaining usage of USE_INET6 was solely for the benefit of the scripts
that generate the README.html files.  Replace:

	BUILD_DEFS+=	USE_INET6
with
	BUILD_DEFS+=	IPV6_READY

and teach the README-generation tools to look for that instead.

This nukes USE_INET6 from pkgsrc proper.  We leave a tiny bit of code
to continue to support USE_INET6 for pkgsrc-wip until it has been nuked
from there as well.

Log message:
Whitespace cleanup, courtesy of pkglint.
Patch provided by Sergey Svishchev in private mail.