Request: support older Perls on Xenial

[cxw42]

@BanzaiMan My apologies if this is the wrong place for this issue - please let me know. I just started getting failures due to the switchover from trusty to xenial (example). I see here that Perls earlier than 5.22 are not available by default on xenial. Would Travis please reconsider this decision? I see from the Travis blog that trusty is end of life, and I would like to be able to continue testing on older Perl versions.

As a workaround, I can certainly perlbrew-compile my own Perls and use them. However, that would complicate my .travis.yml files :) .

Thank you for considering this request!

Edit

(BinGOs) xenial comes with gcc 5.4.0 and perls less than v5.22.0 (actually v5.20.3 has the fix) fail to build/test with it (problem with Errno https://rt.perl.org/Public/Bug/Display.html?id=123784).

Any word on how long Trusty images will continue to be available?

[eserte]

Debian/stretch comes with a newer gcc than Ubuntu/xenial (6.3.0 vs. 5.4.0) and I was able to compile even perl 5.8.9 on such a system, of course with the help of Devel::PatchPerl.