Log message:
Instead of including bsd.pkg.install.mk directly in a package Makefile,
have it be automatically included by bsd.pkg.mk if USE_PKGINSTALL is set
to "YES".  This enforces the requirement that bsd.pkg.install.mk be
included at the end of a package Makefile.  Idea suggested by Julio M.
Merino Vidal <jmmv at menta.net>.

Log message:
Update xmess to 0.62.2.

Changes since 0.62.1nb1 include:
- Fixed problems in memory.c that could lead to crashes and default.cfg
  corruption.  (smf)
- Aspect and mode switches are now available for the Xv driver even if
  DGA isn't enabled.
- The 'rc' and 'hi' directories are now created on startup if they're
  missing.  (Gerd Sussner)

Log message:
Enable XV and esound support. Thanks to Juan RP.

PKGREVISION++

Log message:
Update xmess to 0.62.1 (rc3)

Changes since last packaged version are mainly that the emulation core
is based on MAME 0.62, together with random bugfixes.

Log message:
The workaround for gcc problems on sparc and arm was a bit too draconian.
Change it to only disable the macros that do massive unrolling (instead
of disable all optimization).

PKGREVISION++

Log message:
Drop trailing whitespace.

Log message:
reduce optimization level on sparc to allow this to build

Log message:
buildlink1 -> buildlink2

Log message:
Fix previous CFLAGS change.

Log message:
On NetBSD/arm, turn off optimisation on xmess and xmame as this prevents the
packages from building.