Unlinked header file in new PyMC5 install

[jessegrabowski]

I ran into this problem on my MacBook as well. Here are the steps I followed to resolve it. As I note, I have no idea which step/steps are important. If you approach it more scientifically, please report back.

Pytensor compilation error

I just got a new mac and ran into several compiler errors, including these missing standard C libraries. I had to do the following steps: I had to reinstall xcode-select (xcode-select --install, but in my case I also had to uninstall it first because I did a migration from an intel to an M1 system, so everything got messed up). BLAS doesn’t seem to grab the apple accelerate version that works on the ARM64 chips by default, so i had to do mamba install blas=*=*accelerate* I added the loc…