exec >&2
dir=${2%/*}
redo-ifchange "$S/$dir/package" "$S/oss/version/short.txt"
read -r package <"$S/$dir/package"
read -r pkgver <"$S/oss/version/short.txt"
machine=$(uname -m)
redo-ifchange "$dir/$package.rpm"
rm -f "$dir/${package}"-*."$machine.rpm"
ln -sf "$package.rpm" "$dir/$package-$pkgver.$machine.rpm"