How do you install and run slic3r from the tarball on Ubuntu 14.04

There do not seem to be any instructions at [slic3r.org] for tarball installs.

I downloaded and extracted the tarball into /opt. I had also installed all the dependent ubuntu packages as per that page and [slic3r.org] with synaptic, although it appears they are only needed when installing from a git clone. I assume that it should not hurt to have them installed anyway, as slic3r presumably should need to use some of their object files. Perhaps the tarball install cannot find them. Anyway, I run -

$(cd /opt/Slic3r && /opt/Slic3r/bin/slic3r & )

and get -

Failed to initialize virtual file system at /Application::Loader line 1183.
BEGIN failed--compilation aborted at /opt/Slic3r/lib/std/File/Glob.pm line 7.
Compilation failed in require at /Application::Loader line 1433.

I don't want the git install if possible, as I would rather a stable tarball.

OK, I decided to install from git.

FYI:
The perl Build.PL step includes output of -

Running Slic3r under Perl >= 5.16 is not supported nor recommended

Ubuntu 14.04 has 5.18. However it ends OK:

All tests successful.
Files=31, Tests=331, 122 wallclock secs ( 0.16 usr  0.03 sys + 133.39 cusr  1.53 csys = 135.11 CPU)
Result: PASS

("perl Build.PL --gui " runs OK, and slic3r starts up OK)

It looks like the tarball is not the way to go with Ubuntu.

FYI there is a Debian 3D Printer group since last year, they are working on packaging a few apps including slic3r. Once they appear in Debian, Ubuntu should follow.

I found their git repo, I plan to try building my own slic3r deb package from it.