https://bugzilla.redhat.com/show_bug.cgi?id=2158697
--- Comment #4 from Davide Cavalca davide@cavalca.name --- mathics/data/ExampleData/lena.tif is non-free and we'll need to strip it out of the source tarball (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=758442)