No https support in gitlib2

[Match]

The libgit2-24 package doesn't seem to be compiled with https/TLS support.

>$ apt-get install libgit2-24 pygit2
>$ python -c "import pygit2; print(bool(pygit2.features & pygit2.GIT_FEATURE_HTTPS))"
False

If I manually install libgit2 and pygit2 following the quick install instructions* then it works

>$ python -c "import pygit2; print(bool(pygit2.features & pygit2.GIT_FEATURE_HTTPS))"
True

* (http://www.pygit2.org/install.html#requirements)

OS/Software info:

Description: Ubuntu 16.04 LTS
Release: 16.04

libgit2-24:
  Installed: 0.24.1-2
  Candidate: 0.24.1-2
  Version table:
     0.24.1-2 500
        500 http://gb.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages

python-pygit2:
  Installed: 0.24.0-0ubuntu2
  Candidate: 0.24.0-0ubuntu2
  Version table:
     0.24.0-0ubuntu2 500
        500 http://gb.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages

[Lenard Fudala (lfudala)]

Looking at this buildlog: https://launchpad.net/ubuntu/+source/libgit2/0.24.1-2/+build/9590211/+files/buildlog_ubuntu-xenial-amd64.libgit2_0.24.1-2_BUILDING.txt.gz

there is:
 -DUSE_OPENSSL:BOOL=OFF \

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Tim White (timwhite88)]

Related upstream bug https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=832798