version=4
opts=\
repacksuffix=+dfsg,\
uversionmangle=s/a([0-9])/~$1/,\
dversionmangle=s/\+dfsg//g,\
repack,\
filenamemangle=s/.+\/v?(\d\S*)\.tar\.gz/gtsam-$1\.tar\.gz/;s/a([0-9\.]+)\.tar/~$1.tar/; \
 https://github.com/borglab/gtsam/tags .*/v?(\d\S+)\.tar\.gz
