Changes applied to the gregorio source tree as obtained from:
	https://mirrors.ctan.org/support/gregoriotex/gregorio-6.1.0.zip

Update ./version.ac to $VER.
mv gregorio-src gregorio-prev
zip=`ls /tmp/gregorio*zip`
zipinfo -1 $zip # normally unpacks into gregorio-VERSION
unzip -q $zip   # if all in a subdir
mv gregorio-[6789]* gregorio-src
cd gregorio-src

rm -rf \
	Makefile.in \
	aclocal.m4 \
	build-aux/ \
	configure \
	contrib/Makefile.in \
	contrib/TeXShop/Makefile.in \
	src/Makefile.in \
	src/config_.h.in

# files to add:
svn status | sed -n 's/^\?//p'
svn add `!!`                    # if looks reasonable
svn status | sed -n 's/^\?//p'  # rerun, should be empty now
#
# files to remove:
svn status | sed -n 's/^\!//p'
svn rm `!!`                     # if looks reasonable
svn status | sed -n 's/^\!//p'  # rerun, should be empty now

cd ..
autoreconf # in the TL directory (Build/source/texk/gregorio).
rebuild    # a full rebuild is best.

# if all looks ok:
edit ./ChangeLog
edit ../README
svn commit -m"import gregorio-$VER" ../README .
