Log message:
Drop superfluous PKG_DESTDIR_SUPPORT, "user-destdir" is default these days.
Mark packages that don't or might probably not have staged installation.

Log message:
Remove obsolete @dirrm lines.

Log message:
Catch up to modern pkginstall framework: USE_PKGINSTALL has been dead
for a while now, and *_EXTRA_TMPL are generally not needed anymore.

Log message:
Slightly improve COMMENT.

Update to version 3.1. ChangeLog says:

3.1 Version:
o modprobe, rmmod: Fix format string (thanks to Sergey Vlasov)
o modinfo: support -n, and by default display filename.
o modprobe: allow -o with -r to remove renamed modules with deps correct.
o modprobe: fall back to /etc/modprobe.d if fail on /etc/modprobe.conf.
o modprobe: allow config files to be directories, and recurse.
o modprobe: Fix quoting of cmdline options.
o insmod: remove quote handling, since we didn't do it right.
o depmod: ignore symbols (eg. PCI ids) in BSS (patch from Marc Boucher).
o depmod: exit after -h.
o modprobe: file locking on modules to avoid spurious errors if they race \ 
(report from Marc Boucher)
o modprobe: Fall back to read-only (no locking) if rw open on module fails
o depmod: updates/ dir overrides (for RH, thanks to Thomas Vander Stichele)
o depmod: don't follow symlinks, broken in updates/ rework (thanks to Marco d'Itri)
o Bashisms removed (thanks to David Weinehall)
o modinfo: use modules.dep, not manual search, so we get updates/ right.
o Fix modinfo manpage missing word (thanks Debian)
o modprobe.devfs: added apm_bios devices (thanks Debian)
o modprobe: don't fatal() on missing includes (thanks Debian)
o modprobe: install/remove commands must override modules.alias file.
o Fix modprobe man page to document --show-depends and install commands \ 
(reported by Eric C. Cooper)
o Fix modprobe man page: -t -a removed in 3.0 (report from Thomas Hood)
o Document modprobe.d in modprobe(.conf) man page (report from Stefan Richter)

Log message:
RCD_SCRIPTS_EXAMPLEDIR is no longer customizable.
And always is defined as share/examples/rc.d
which was the default before.
 
This rc.d scripts are not automatically added to PLISTs now also.
So add to each corresponding PLIST as required.
 
This was discussed on tech-pkg in late January and late April.

Not all of these packages have been tested.
 
Todo: remove the RCD_SCRIPTS_EXAMPLEDIR uses in MESSAGES and elsewhere
and remove the RCD_SCRIPTS_EXAMPLEDIR itself.

Log message:
Remove USE_BUILDLINK3 and NO_BUILDLINK; these are no longer used.

Log message:
Switch from USE_BUILDLINK2 to USE_BUILDLINK3.

Log message:
The linux-module-init-tools are utilities for loading, inserting,
and removing Linux kernel modules (Linux versions 2.5.48 and above).

(The linux-modutils package is for older kernels.)