Log message:
Bump PKGREVISION for libpng shlib name change.
Also add some patches to remove use of deprecated symbols and fix other
problems when looking for or compiling against libpng-1.4.x.

Log message:
add a patch from upstream which fixes an incompatibility with
glib2-2.24.x, bump PKGREVISION

Log message:
Update to 4.6.2.  Changes:
- Properly set orientation of tasklist handler.
- Fix launcher with 'Run in Terminal'.
- Fix typo preventing build on older gtk versions.
- Don't send -r to session restart command.
- Add dist-hook: all to the API docs Makefile.am as well.
- Add dist-hook: all to the libxfce4panel/ Makefile.am.
- Add option to tasklist to force a fixed width.
- Get the time the same as orange does.
- Better check for the lcd resize when the number of hour digits changes.
- Use g_timeout_add_seconds when available for the clock timeout.
- Resync tooltip and clock timeout when they are out of sync.
- Remove the hour interval from the clock, minutes are good enough.
- Use Git in the build files and drop unneeded po files.
- Use g_markup_printf_escaped in the launcher tooltip.
- A whole bunch of translations updated

Log message:
Upgrading Xfce to 4.6.1.

This is for PR #40984. This is based on work from
dieter roelants. Thank you Dieter.
Also I had done some work independently on this.
Hopefully, I am getting this all committed at one time.

The changelogs are at
http://www.xfce.org/documentation/changelogs/4.6.1
http://www.xfce.org/documentation/changelogs/4.6.0

Also don't need the xfce4-dev-tools for building. (It is only
needed when building from SVN source.)

Log message:
bump revision because of graphics/jpeg update

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

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.