maintainer-feedback requested: [Bug 205859] x11/xcb-proto: Make it build against Python 3.5

[bugzilla-noreply at freebsd.org]

Vladimir Krstulja <vlad-fbsd at acheronmedia.com> has reassigned Bugzilla
Automation <bugzilla at FreeBSD.org>'s request for maintainer-feedback to
x11 at FreeBSD.org:
Bug 205859: x11/xcb-proto: Make it build against Python 3.5
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205859



--- Description ---
Created attachment 165028
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=165028&action=edit
Make xcb-proto build against python 3.5, 3.4 and 2.7

In an attempt to build ALL packages that use Python (anything with "python*" in
USES, except "py3-*" ports and those marked for python2(.7)) against Python 3.5
exclusively (via DEFAULT_VERSIONS), so we can see what's broken and how, one
big blocker was x11/xcb-proto holding down 1000+ packages that were skipped by
Poudriere because it wouldn't build (plist issues with __pycache__ files).

This patch makes sure it builds and installs against 3.5 and 3.4, and also
tested against default (no DEFAULT_VERSIONS forced) 2.7. While at it, I added
the license (which I believe is MIT, looking at the distfile's COPYING file) to
keep portlint quiet.

However, since I'm still a total noob in porting, this needs testing and
feedback!

Portlint: OK (except warning about Comment)
Poudriere:
  - 10.2 (amd64) OK w/ Python 3.5
  - 10.2 (amd64) OK w/ Python 3.4
  - 10.2 (amd64) OK w/ Python 2.7