Log message:
Convert @exec/@unexec to @pkgdir or drop it.

Log message:
Remove @dirrm entries from PLISTs

Log message:
Explicitly enable xinerama support (bl3.mk was already included).
Fixes PR 41449 by Pierre Pronchery.

While here:
Remove excessive quoting operators, and convert to user-destdir.

Log message:
update mirrors.

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:
No need to define INSTALL_TARGET=install-strip.
Framework pass -s flag automatically if required (INSTALL_UNSTRIPPED!=yes).

Part of fixes PR 15107.

Log message:
Remove Ex-MASTER_SITE. From Zafer Aydogan.

Log message:
If gcc-4 is used, disable inline assembly until GCC Bug #25221 is fixed.
Previously, it was done in Makefile for gcc-4.1 only.  Now it covers
gcc-4.0.* and is located in the proper place (hacks.mk).

This fixes PR 36460.

Log message:
Add link options to build on Darwin.  Patches provided by Mark E. Perkins
in PR 36460.  This fixes the second half of the PR.

Log message:
Finish the last commit: libXt is actually needed for configure and
having Xinerama around is useful.