PyPy build failing when headers argument supplied to distutils.core.setup

[syllog1sm]

Hi,

I'm attempting to build a Python project that packages a C extension, and requires that header files be installed. The build succeeds in Python 2.7 and Python 3.4, and my local build succeeds with PyPy --- but the PyPy build fails on Travis, giving a permission error when it attempts to install the header files into the PyPy virtualenv:

https://travis-ci.org/syllog1sm/cython-murmurhash/jobs/45425637

The relevant part of the log seems to be:

running install_headers
creating /home/travis/virtualenv/pypy-2.4.0/include/site
error: could not create '/home/travis/virtualenv/pypy-2.4.0/include/site': Permission denied

Quite new to Travis so this could be my bad. But, I'd say this is a slightly obscure combination of things, so it may well be a bug on your end.

Cheers
Matt.

[BanzaiMan]

https://travis-ci.org/BanzaiMan/travis_production_test/builds/45426953#L102

It seems this is how PyPy or pyenv installs headers; a symbolic link to /opt/python/pypy-2.4.0/include.

@dstufft @alex Do you have suggestions?

[syllog1sm]

Hmm, you're right --- it's a symbolic link on my machine too; it's just that my user had permissions to write that directory...Sadness!

So, I guess I/we should take this up with either PyPy or virtualenv? This isn't the same behaviour as CPython virtualenv

[syllog1sm]

Known issue with virtualenv.

pypa/virtualenv#510