This package should behave normally with dpkg-source -x for adding and
removing modifications.

For upgrading to a new upstream version, the source tarball can be created
from the git repository at git://github.com/angband/angband.git by invoking
scripts/pkg_deb, or downloaded from http://rephial.org/downloads/x.y where
x and y are the major and minor version numbers (currently 3.3).

Please note that this upstream source tarball must be repacked for two
reasons:

1. The upstream tarball unpacks into a directory called angband-vX.Y.Z,
where Debian wants to use angband-X.Y.Z (no 'v'). (The tarball must also be
renamed to the debian standard format angband_x.y.z.orig.tar.gz)

2. The upstream tarball contains non-free .wav files in lib/xtra/sound/
which must be removed *prior* to running dpkg-source. See
debian/patches/adjust-sound-dir.patch for accompanying modifications to the
remaining files in lib/xtra/sound. The pkg_deb script removes these wavs for
you, but the tarballs downloaded from rephial.org will contain them.
