Cmake is not able to find Python-libraries

You can fix the errors by appending to the cmake command the -DPYTHON_LIBRARY and -DPYTHON_INCLUDE_DIR flags filled with the respective folders.

Thus, the trick is to fill those parameters with the returned information from the python interpreter, which is the most reliable. This may work independently of your python location/version (also for Anaconda users):

$ cmake .. \-DPYTHON_INCLUDE_DIR=$(python -c "from distutils.sysconfig import get_python_inc; print(get_python_inc())")  \-DPYTHON_LIBRARY=$(python -c "import distutils.sysconfig as sysconfig; print(sysconfig.get_config_var('LIBDIR'))")

If the version of python that you want to link against cmake is Python3.X and the default python symlink points to Python2.X, python3 -c ... can be used instead of python -c ....

In case that the error persists, you may need to update the cmake to a higher version as stated by @pdpcosta and repeat the process again.

For me was helpful next:

> apt-get install python-dev python3-dev

I hit the same issue,and discovered the error message gives misleading variable names. Try setting the following (singular instead of plural):

PYTHON_INCLUDE_DIR=/usr/include/python2.7 PYTHON_LIBRARY=/usr/lib/python2.7/config/libpython2.7.so

The (plural) variables you see error messages about are values that the PythonLibs sets up when it is initialised correctly.