On system without cmake, pip install silently fails

[msm-code]

When installing with pip on system without cmake (for example, in a docker container) pip install finishes without errors:

$ pip install yaramod
Collecting yaramod
  Downloading https://files.pythonhosted.org/packages/30/ab/015d137c65bd189d7a29b55f53d9f6ec5c98a890d14dc052b885e9175449/yaramod-3.3.3.tar.gz (605kB)
    100% |████████████████████████████████| 614kB 1.7MB/s
Building wheels for collected packages: yaramod
  Failed building wheel for yaramod
  Running setup.py clean for yaramod
Failed to build yaramod
Installing collected packages: yaramod
  Running setup.py install for yaramod ...
-
done
Successfully installed yaramod-3.3.3

root@3132c677476f:~# pip install yaramod
Requirement already satisfied: yaramod in /usr/local/lib/python3.7/site-packages (3.3.3)

But it can't be imported:

root@3132c677476f:~# python
>>> import yaramod
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'yaramod'

I would expect pip install to fail when the required modules can't be built

[metthal]

Thank you for the report. Confirming that it indeed passes successfully even without cmake. We'll try to look into it hopefully next week.