Have researched this and came across Problems with custom LIBFFI Heroku buildpack, where they suggest a forked libffi buildpack.
But even after following the directions there, can't seem to get it to compile properly. It fails with a number of No package 'libffi' found messages (full log below).
How can I get libffi compiled properly for a Heroku Python application?
requirements.txt file:
Flask==0.10.1
gunicorn==18.0
cryptography==0.3
Buildpack environment variable:
BUILDPACK_URL: git://github.com/mfenniak/heroku-buildpack-python-libffi.git
git push errors:
https://gist.github.com/HanSooloo/8a9290c032ed603f6cf4#file-libffi-errors
Feeling very silly as I have clearly done a bad Copy/Paste in setting the BUILDPACK_URL environment variable in Heroku.
The forked buildpack at h++ps://github.com/kennethjiang/heroku-buildpack-python-libffi has the same Readme.md file as the original one at h++ps://github.com/mfenniak/heroku-buildpack-python-libffi.
Which means, if I simply copy/paste the instructions from 'kennethjiang's repo, I will actually be pointing to 'mfenniak's original repo:
kennethjiang's Readme.md:
$ heroku config:add BUILDPACK_URL=git://github.com/mfenniak/heroku-buildpack-python-libffi.git
Should have done:
$ heroku config:add BUILDPACK_URL=git://github.com/kennethjiang/heroku-buildpack-python-libffi.git
Feeling very silly as I have clearly done a bad Copy/Paste in setting the BUILDPACK_URL environment variable in Heroku.
The forked buildpack at https://github.com/kennethjiang/heroku-buildpack-python-libffi has the same Readme.md file as the original one at https://github.com/mfenniak/heroku-buildpack-python-libffi.
Which means, if I simply copy/paste the instructions from 'kennethjiang's repo, I will actually be pointing to 'mfenniak's original repo:
kennethjiang's Readme.md:
$ heroku config:add BUILDPACK_URL=git://github.com/mfenniak/heroku-buildpack-python-libffi.git
Should have done:
$ heroku config:add BUILDPACK_URL=git://github.com/kennethjiang/heroku-buildpack-python-libffi.git