Bug#1017284: fenics-dolfinx: FTBFS: CheckSymbolExists.c:8:19: error: ‘PETSC_USE_COMPLEX’ undeclared (first use in this function); did you mean ‘PETSC_HAVE_COMPLEX’?

[Drew Parsons]

Source: fenics-dolfinx
Followup-For: Bug #1017284

The cmake error logs can be too effusive, they tend to obscure the
error.  In this case the real problem seems to be that it never found
scotch, even though it found it.  A mystery indeed. Schrödinger's
SCOTCH.