Log message:
When checking for C++ features, use valid C++. Expect libc++ to provide
the wchar traits.

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

Log message:
Fix build on SunOS >= 5.10 with gcc >= 4.6

Log message:
One more gcc-4.3 compliant patch for PR#43783.

Log message:
Fix typo in comment.

Log message:
Add patches for gcc-4.3, taken from upstream.
Functionally same as PR#43783.

Log message:
the library needs libz, link against it to force a dependency
bump PKGREVISION

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:
Mark as destdir ready.