message: Add information about *make python* and *make clean* target. It does not fix, but workaround issues and
diff: @@ -40,6 +40,20 @@ To build the GUDHI Python module, run the following commands in a terminal:
  cd python
  make
  +.. note::
  +
  + :code:`make python` (or :code:`make` in python directory) is only a
  + `CMake custom targets <https://cmake.org/cmake/help/latest/command/add_custom_target.html>`_
  + to shortcut :code:`python setup.py build_ext --inplace` command.
  + No specific other options (:code:`-j8` for parallel, or even :code:`make clean`, ...) are
  + available.
  + But one can use :code:`python setup.py ...` specific options in the python directory:
  +
  +.. code-block:: bash
  +
  + python setup.py clean --all # Clean former compilation
  + python setup.py build_ext -j 8 --inplace # Build in parallel
  +
  GUDHI Python module installation
  ================================
  @@ -59,6 +73,17 @@ Or install it definitely in your Python packages folder:
  # May require sudo or administrator privileges
  make install
  +.. note::
  +
  + :code:`make install` is only a
  + `CMake custom targets <https://cmake.org/cmake/help/latest/command/add_custom_target.html>`_
  + to shortcut :code:`python setup.py install` command.
  + It does not take into account :code:`CMAKE_INSTALL_PREFIX`.
  + But one can use :code:`python setup.py install ...` specific options in the python directory:
  +
  +.. code-block:: bash
  +
  + python setup.py install --prefix /home/gudhi # Install in /home/gudhi directory
  Test suites
  ===========
  