Meson compiler test

[diegomartinez2]

Hi Lorenzo, I need somebody to test the meson install in other computers before adding it to master. I only tested in my laptop on a conda env, but it already has SSCHA in the base system so I have doubts. I think it will work on Apple ARM (M1/M2) architecture, but I do not have way to test it.
Meson_compiler_test

[mesonepigreco]

Hi Diego, I'll take a look at it.
The autotest is working; however, looking at the output of the installation, I find the following:

It is still using distutils for the installation, which is, indeed, present in your setup.py file, lines 2 and 3.
How is the meson installation performed? In any case, if the setup.py is no more needed, delete it, I can change the workflow to use instead the pip install .

[diegomartinez2]

../../meson.build:76:15: ERROR: Command /opt/hostedtoolcache/Python/3.11.13/x64/bin/python -c 'import numpy; print(numpy.get_include())' failed with status 1.
So it fails at the 'import numpy' command in python?
So it needs numpy in the 'pip' configuration.

[diegomartinez2]

Missing a MODULE symph in the Fortran code?.
I don't know what happens here.

[diegomartinez2]

OK, this works.
On monday or so I'll fix python-sscha.

[mesonepigreco]

Ok thank you very much, I am testing it right now on my computer. If it works we can try to release the 1.5 with this, that should fix all the installation errors.

I am trying with python 3.12 which should be the aim of the meson fix.

[mesonepigreco]

Hi, Diego, thanks, it works correctly.

Can you update the installation guide as I mentioned in the review, so that we can point to python 3.12, and avoid the mandatory gfortran installation if we work in a conda enviroment (move that in the later section on manual compilation)?
Also note that to have meson work with mamba it requires installing pkg-config from mamba/conda, otherwise it does not detect BLAS.
Maybe you can add my custom command to install cellconstructor.

[mesonepigreco]

Now we are ready to merge

[mesonepigreco]

Thank you very much @diegomartinez2
Can you also do it for python-sscha? So we can release version 1.5 and finally fix this major issue.