Lisandro Dalcin

@drew-parsons * Please squash all commits under your authorship. I believe GitHub's *Squash and merge* screws authorship. * After squashing, test the final patch in Debian. Once you confirm all...

Why would we care about the source? Now that the conda-forge package has `MSMPI_VER` forcibly `#define`'d in `mpi.h`, everything should be fine. The only reason mpi4py looks in the Windows...

Do you agree that defining `MSMPI_VER` is ultimately harmless if building against the conda-forge package? Perhaps a minor improvement in mpi4py could be to always lookup the registry, but only...

> Well, apparently it's harmless only because we forgot to set `-Werror` in mpi4py-feedstock. Yes, of course. But I would not say we "forgot" to add it. IMHO, `-Werror` is...

> Though I also know some people care about it a lot... Yes, I do care a lot about it. But for my own code and standard development workflows, not...

@hppritcha You may want to look at this one.

@hppritcha Unfortunately, It is not working as expected: ### Reproducer ```python from mpi4py import MPI session = MPI.Session.Init() info = session.Get_pset_info("mpi://SELF") print(info.Get("mpi_size")) info.Free() info = session.Get_pset_info("mpi://WORLD") print(info.Get("mpi_size")) info.Free() session.Finalize() ```...

@jeffhammond Maybe you can rebase this PR to the latest main branch?

@awlauria After your recent update of submodule pointers, things got even worse. Now I cannot even call `MPI_Init_thread()` if `mpiexec` is not used: ``` $ mpiexec -n 1 python -c...

@jjhursey I'm not sure you got my request for advice for a related issue in mpi4py/mpi4py#247. I'm just asking for your comment about whether this is a know issue that...