I think I just had an old .c file in my directory.

On Mon, Jun 7, 2021 at 3:49 PM Mark Adams <mfadams@lbl.gov> wrote:

Makefile contains file not on filesystem: /gpfs/alpine/csc314/scratch/adams/petsc/src/mat/impls/aij/seq/seqcusparse/ftn-auto: ['aijcusparse.bandf.c']