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Subject: Re: [OMPI devel] vt compiler warnings and errors
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2008-01-29 12:22:04

On Jan 29, 2008, at 12:13 PM, Matthias Jurenz wrote:

> 518:
> I have added a check whether MPI I/O is available and add the
> corresponding VT's
> configure option to enable/disable MPI I/O support. Therefor I used
> the variable
> "define_mpi_io" from 'ompi/mca/io/configure.m4'. Is that o.k. or
> should I use another
> variable ?

You might want to use $enable_mpi_io -- that's the variable that is
directly set by the --enable-mpi-io / --disable-mpi-io flag. The
$define_mpi_io flag is set after testing $enable_mpi_io, and is
somewhat "internal" to the IO framework configure.m4 (i.e., it could
change on you without warning).

Hence, you might simply check to see if $enable_mpi_io is not "no" (--
enable sets it to yes; --disable sets it to no; if neither is
specified, it's empty).

Jeff Squyres
Cisco Systems