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

Matthew Knepley knepley at gmail.com
Fri Aug 12 12:23:59 CDT 2022

On Fri, Aug 12, 2022 at 1:14 PM David Knezevic via petsc-users <
petsc-users at mcs.anl.gov> 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.

1. I think your existing MUMPS build is incompatible (but it is hard for us
to tell). Remove it

  rm -rf $PETSC_DIR/$PETSC_ARCH/externalpackages/git.mumps

and reconfigure

2. You can also use C99 for complex numbers, but your application code
might already be using C++.



> Thanks,
> David

What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener

https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
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