version=4

opts=\
  filenamemangle=s/.+\/v?(\d\S+)\.tar\.gz/@PACKAGE@-$1\.tar\.gz/,\
  uversionmangle=s/_/./;s/rc/~rc/ \
  https://github.com/nrnrnr/@PACKAGE@/tags \
  .*/v?(\d\S+)\.tar\.gz
