OpenSigComp support should be tested during the travis-ci builds.
To do this, we need to:
a) resurrect OpenSigComp in some form on Github (copy the files from contrib/opensigcomp if the original repository can't be recovered)
b) make a package of OpenSigComp and upload to Debian
c) tweak the .travis.yml and related scripts to install the OpenSigComp package from the apt repository and enable it during the configure for the build