Expected behavior

pip install build/compiles cleanly

Actual behavior

See https://discord.com/channels/807348386012987462/808088023957897258/1381767573611483176 by @ljwoods2

Curious if I'm missing something, is anyone else getting a Numpy compatibility issue when trying to build MDA from source with pip? Looks like transformations.c relies on the old numpy API (NPY_IN_ARRAY, etc), and I can't build wheel sucessfully and clear errors like this (long list of them from MDAnalysis/lib/src/transformations/transformations.c) unless I change numpy to an earlier version (<1.24) in the build-system "requires" list:

  MDAnalysis/lib/src/transformations/transformations.c:794:57: error: ‘NPY_ALIGNED’ undeclared (first use in this function); did you mean ‘Py_ALIGNED’?
           *address = PyArray_FROM_OTF(object, NPY_DOUBLE, NPY_ALIGNED);

Plus, above should throw a deprecation warning / error instead of just failing, right? I see @orbeckst 's issue (#2988) about suppressing the deprecated warnings, but looks like it hasn't been fixed yet, so I should still see the warning?

Apologies if this is something obvious, but I figured Numpy >2.0 is supposed to be able to handle the old API usage? If this is not just me being dumb I will raise an issue

Code to reproduce the behavior

All I did was:

git clone [email protected]:MDAnalysis/mdanalysis.git
git checkout develop
conda create -n broken python=3.11 pip
conda activate broken
cd mdanalysis/package
pip install .

Current version of MDAnalysis

• Which version are you using? (run python -c "import MDAnalysis as mda; print(mda.__version__)")
• Which version of Python (python -V)?
• Which operating system?