[petsc-dev] Stale lib/petsc/conf/petscvariables interferes with prefix tests

[Satish Balay]

On Thu, 8 Mar 2018, Jed Brown wrote:

> Satish Balay <balay at mcs.anl.gov> writes:
> 
> 
> Related question: if the prefix install is read-only, then this line in
> "make info" fails.
> 
> 	- at echo Using mpi.h: `echo '#include <mpi.h>' > ${PETSC_DIR}/${PETSC_ARCH}/lib/petsc/conf/mpitest.c; ${CPP} ${PETSC_CCPPFLAGS} ${PETSC_DIR}/${PETSC_ARCH}/lib/petsc/conf/mpitest.c |grep 'mpi\.h' |  ( head -1 ; cat > /dev/null )`
> 

Hm - this is primarily used by 'make all' - [that should always have write access to ${PETSC_DIR}/${PETSC_ARCH}/lib/petsc/conf/]

And I see we've previously used it from testexamples, testfortran etc targets - but these should now be removed?

> 
> Are there CPP that can't use stdin?

Windows.

Satish