#
# Copyright (C) 2017, Northwestern University and Argonne National Laboratory
# See COPYRIGHT notice in top-level directory.
#
# $Id: README.INTEL 3433 2017-09-29 17:34:49Z wkliao $

When using old versions of Intel MPI compilers (4.x), you might encounter the
following error message.

In file included from /opt/intel/impi/4.1.3/include/mpi.h(1279),
                 from ../lib/pnetcdf.h(10),
                 from ../../../trunk/src/libcxx/ncmpiType.h(2),
                 from ../../../trunk/src/libcxx/ncmpiType.cpp(2):
/opt/intel/impi/4.1.3/include/mpicxx.h(95): error: #error directive: "SEEK_SET is
#defined but must not be for the C++ binding of MPI. Include mpi.h before stdio.h"
#error "SEEK_SET is #defined but must not be for the C++ binding of MPI. Include mpi.h before stdio.h"
   ^

A solution is to add the following C++ preprocessor flags at the configure
command line, for example.

    ./configure CXXCPPFLAGS="-DMPICH_IGNORE_CXX_SEEK -DMPICH_SKIP_MPICXX"


Note that this error has been resolved when using newer Intel MPI
compiler (5.x).  See the two URLs below for more information.

https://software.intel.com/en-us/articles/intel-cluster-toolkit-for-linux-error-when-compiling-c-aps-using-intel-mpi-library-compilation-driver-mpiicpc

https://wiki.mpich.org/mpich/index.php/Frequently_Asked_Questions#Q:_I_get_compile_errors_saying_.22SEEK_SET_is_.23defined_but_must_not_be_for_the_C.2B.2B_binding_of_MPI.22

