Updated IPOPT build instructions for other linear solvers (#312)

Author: eytanadler

.isort.cfg

@@ -6,5 +6,5 @@ import_heading_stdlib=Standard Python modules
 import_heading_thirdparty=External modules
 import_heading_firstparty=First party modules
 import_heading_localfolder=Local modules
-skip_glob=**__init__.py,**setup.py
+skip_glob=**__init__.py,setup.py
 known_local_folder=testing_utils

doc/install.rst

@@ -27,7 +27,7 @@ pyOptSparse has the following dependencies:
 Please make sure these are installed and available for use.
 In order to use NSGA2, SWIG (v1.3+) is also required, which can be installed via the package manager.
 If those optimizers are not needed, then you do not need to install SWIG.
-Simply comment out the corresponding lines in ``pyoptsparse/pyoptsparse/setup.py`` so that they are not compiled.
+Simply comment out the corresponding lines in ``pyoptsparse/pyoptsparse/meson.build`` so that they are not compiled.
 The corresponding lines in ``pyoptsparse/pyoptsparse/__init__.py`` must be commented out as well.
 
 Python dependencies are automatically handled by ``pip``, so they do not need to be installed separately.

doc/optimizers/IPOPT.rst

@@ -68,16 +68,6 @@ Here we explain a basic setup using MUMPS as the linear solver, together with ME
 
 #. Now clean build pyOptSparse. Verify that IPOPT works by running the relevant tests.
 
-.. note::
-
-   To get IPOPT working with pyOptSparse when using another linear solver, several things must be changed.
-
-   #. The ``setup.py`` file located in ``pyoptsparse/pyIPOPT`` must be updated accordingly.
-      In particular, the ``libraries=`` line must be changed to reflect the alternate linear solver.
-      For  example, for HSL you need to replace ``coinmumps`` and ``coinmetis`` with ``coinhsl``.
-   #. The option ``linear_solver`` in the options dictionary must be changed.
-      The default value can be changed in ``pyIPOPT.py`` so that this option does not need to be manually set in every run script.
-
 Options
 -------
 Please refer to the `IPOPT website <https://coin-or.github.io/Ipopt/OPTIONS.html>`__ for complete listing of options.