undocumented dependency: CMake

[lundybernard]

Describe the bug

make dev fails on fresh install

How to Reproduce

• given a system without cmake installed
• run make dev or make build

Expected behavior

The installation should succeed

Actual behavior

              File "/private/var/folders/jd/866s8z110131lfqgg2_my1980000gn/T/pip-install-mvl5uszd/qdldl_af4a38cf95924ac0a10f8f13397bc154/setup.py", line 80, in build_extensions
                raise RuntimeError("CMake must be installed to build qdldl")
            RuntimeError: CMake must be installed to build qdldl
            [end of output]
      
        note: This error originates from a subprocess, and is likely not a problem with pip.
      error: legacy-install-failure
      
      × Encountered error while trying to install package.
      ╰─> qdldl
      
      note: This is an issue with the package mentioned above, not pip.
      hint: See above for output from the failure.
      [end of output]

Environment (please complete the following information):**

• OS: OSX, macbook pro M1
• Python version: 3.10

[mstechly]

That's a little bit weird as I don't think we install cmake specifically in our CICD system, but it works.
btw. there is no make build command that we specify 🤔

Do you have any suggestion how to fix it?