parallel netcd 1.0.1 make errors on Apple

[Christopher Subich]

Robert Latham wrote:
> Hi.  This is not a linker problem.  We make use of several symbols not
> used in MPICH-1.2.x .  The fastest workaround is to use a different
> MPI implementation (perhaps MPICH2).  In the long run we'll add a
> configure-time check for those features.  

To add that check, add the following to configure.in, while $CC is set 
to $MPICC:

AC_CHECK_FUNCS(MPI_Request_get_status MPI_Type_dup,,
   AC_MSG_ERROR(Unsupported version of MPI!)
)