[Mpi-forum] Preprocessor Constants

[Hal Finkel]

On Tue, 2010-11-23 at 09:57 +0000, N.M. Maclaren wrote:
> Damn Webmail!  Sorry - please ignore this grobble - it got pasted in by
> accident, and is not true.  I believe that there are such issues, but
> they are more subtle than that.
> 

Are you concerned that there might be subtle issues with requiring any
predefined macro, with _MPI being in the namespace reserved for the
implementation, or both?

Sincerely,
Hal

> >> 1. An implementation which provides wrapper scripts (i.e. mpicc). These 
> >> scripts could easily add -D_MPI would prevent the conforming use of 
> >> POSIX! See:
> >
> >http://www.opengroup.org/onlinepubs/009695399/toc.htm
> >    2.2 The Compilation Environment
> >        2.2.1 POSIX.1 Symbols
> 
> Regards,
> Nick.
> 
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