pycrypto fails when repackaged to wheel and installed

[Grzegorz Śliwiński]

We have devised a deploy process using pip wheel to package all packages and it's dependencies as wheels, and only send such downloaded wheels to webserver where we'd install them.
Unfortunately pycrypto treated as such won't compile resulting in
ImportError: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.14' not found (required by /home/kanary/.pythonbrew/venvs/Python-2.7.3/kanary/lib/python2.7/site-packages/Crypto/Cipher/_AES.so)

[Darsey Litzenberger (dlitz)]

I'm pretty sure this is just a general issue with how ABI compatibility works in glibc. If you build a library against a newer version of glibc, it will not work on systems with an older version of glibc installed.