[petsc-dev] issue with v3.21.5 build

[Matthew Knepley]

On Mon, Apr 28, 2025 at 8:34 PM Jeffrey Hyman <hymanjd at gmail.com> wrote:

> Hi,
>
> I am trying to build v3.21.5 to use with pflotran. I'm running into issues
> with cmake. configure log attached.  Any suggestions?
>

The documentation could be clearer here. We cannot use the PETSc compilers
to build CMake since it explicitly does not want MPI. Thus you need to
specify them yourself. That means you would need

  --download-cmake-cc=/opt/homebrew/bin/gcc-14
--download-cmake-cxx=/opt/homebrew/bin/g++-14

  Thanks,

     Matt


> Thanks for the help,
> Jeffrey
>
>

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