[mpich-discuss] Compiling with -std=f2003 and mpif.h

[Jed Brown]

I have a user that wants me to check their F2003 code which uses mpif.h.
Attempting to compile with gfortran-4.8.2 -std=f2003 results in errors
coming from mpif.h.  I tried configuring MPICH (v3.1-16-g38a5e61) using
FCFLAGS=-std=f2003, but I get build errors.  GFortran does not have a
-std=gnu2003, so it appears that GNU extensions and F2003+ features are
mutually exclusive.  What is MPICH's intent here?


mpifnoext.h:16.18:
    Included at src/binding/f90/mpi_constants.f90:6:

       CHARACTER*1 MPI_ARGVS_NULL(1,1)
                  1
Warning: Obsolescent feature: Old-style character length at (1)
mpifnoext.h:17.18:
    Included at src/binding/f90/mpi_constants.f90:6:

       CHARACTER*1 MPI_ARGV_NULL(1)
                  1
Warning: Obsolescent feature: Old-style character length at (1)
mpifnoext.h:528.16:
    Included at src/binding/f90/mpi_constants.f90:6:

       integer*8 MPI_DISPLACEMENT_CURRENT
                1
Error: GNU Extension: Nonstandard type declaration INTEGER*8 at (1)
mpifnoext.h:529.42:
    Included at src/binding/f90/mpi_constants.f90:6:

       PARAMETER (MPI_DISPLACEMENT_CURRENT=-54278278)
                                          1
Error: Symbol 'mpi_displacement_current' at (1) has no IMPLICIT type
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