TryMPISERIAL doesn't fail with mpi-serial 2.0

[rljacob]

The TryMPISERIAL.f90 program is supposed to fail to compile to tell PIO that its using mpi-serial. But it does compile with mpi-serial 2.0 (using ifort 13.1.3) so PIO later tries to build without the _MPISERIAL flag set.

[jedwards4b]

Can you suggest a new test?

The TryMPISERIAL.f90 program is supposed to fail to compile to tell PIO
that its using mpi-serial. But it does compile with mpi-serial 2.0 (using
ifort 13.1.3) so PIO later tries to build without the _MPISERIAL flag set.

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#3.

[rljacob]

I asked @rloy but will try to come up with something.

[rljacob]

This seems to work:

program mpiserial_test
 implicit none
 include 'mpif.h' 
 integer :: i
 select case(i)
 case(mpi_cart)
 end select
end program mpiserial_test

[rljacob]

Would it be better to handle this with a configure option like "--with-mpiserial"? Then buildlib.pio could pass that in.