the easiest way to install on ubuntu is just "apt install psl" -- the
available versions are:
0 dkg@alice:~$ rmadison -u ubuntu psl
psl | 0.5.1-1 | vivid/universe | amd64, arm64, armhf, i386, powerpc, ppc64el
psl | 0.11.0-2 | xenial/universe | amd64, arm64, armhf, i386, powerpc, ppc64el, s390x
psl | 0.14.0-1 | yakkety/universe | amd64, arm64, armhf, i386, powerpc, ppc64el, s390x
psl | 0.17.0-4 | zesty/universe | amd64, arm64, armhf, i386, ppc64el, s390x
psl | 0.17.0-4 | artful/universe | amd64, arm64, armhf, i386, ppc64el, s390x
0 dkg@alice:~$
is there a reason that you're not just using the distro-provided
packages?
--dkg