version=4
opts="dversionmangle=s/\+dfsg\d+$//" https://sf.net/guitarix/ \
  (?:|.*/)guitarix2(?:[_\-]v?|)(\d[^\s/]*)\.(?:tar\.xz|txz|tar\.bz2|tbz2|tar\.gz|tgz) \
  debian debian/repack-waf.sh