Installation failed at Running setup.py

[Finvoker]

I am trying to install the python wrapper with
pip install FALCONN and it seems to end up in endless loop by showing a heavy tardiness of the whole system during

Running setup.py bdist_wheel for falconn ...

So I stopped it with Ctrl+C .
And then the auto clean process is started as the installation failed, the machine just blocks again.

On the other hand, when I try the manual installation under ../FALCONN folder with make python_package_install, the process blocks with a WARNING:
cc1plus: warning: command line option '-Wstrict-prototypes' is valid for C/ObjC but not for C++

Then the installation won't move any longer.

I have tried it with my pc and also checked with the tech who was gonna help installing Falconn on our server. Not matter how we tried, we can not get it settled.