[petsc-users] Configure error with PETSc 3.17.4 on Ubuntu 22.04

[Satish Balay]

We've seen issues with Ubuntu built MPI. Can you try --download-mpich and see if that helps?

Also  you don't need --with-clanguage=cxx for complex. PETSc can be built with c99 compilex - i.e "--with-clanguage=c --with-scalar-type=complex" should work.

Satish

On Fri, 12 Aug 2022, David Knezevic via petsc-users wrote:

> I get a configure error when building PETSc 3.17.4 on Ubuntu 22.04. The
> configure.log is attached.
> 
> This error seems to only occur when we use --with-clanguage=cxx. We need to
> use that object when building with complex numbers.
> 
> Guidance on how to resolve this would be most appreciated.
> 
> Thanks,
> David
>