Message-ID:	<38A0BF11.1E851994@eecg.toronto.edu>
From:	Fan Zhang <fanzhang AT eecg DOT toronto DOT edu>
Organization:	eecg
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To:	djgpp AT delorie DOT com
Subject:	Re: MPI lib with g77 (question 2)
References:	<389F82B9 DOT 98AA9059 AT eecg DOT toronto DOT edu> <87ovsm$l1r$1 AT nets3 DOT rz DOT RWTH-Aachen DOT DE>
Date:	Tue, 8 Feb 2000 20:13:45 -0500
Reply-To:	djgpp AT delorie DOT com

Hans-Bernhard Broeker wrote:

> Fan Zhang <fanzhang AT eecg DOT toronto DOT edu> wrote:
> > Hi,
>
> > I'm trying to compile a bunch of Fortran programs using MPI with g77.
>
> Care telling what that 'MPI' is?
>

The MPI library is the standard Message Passing Interface library using in the
parallel computation. Since it is standard, I should link to it without
problem.


>
> > But it turns out that after g77 compiled, the MPI functions in the
> > object files change it's name to lower case.
>
> They don't exactly "change" to lower case, they are lower case all the
> time.  FORTRAN 77, the language compiled by g77, is 100%
> case-insensitive --- it's the one where you can write 'r Et   U      r  N'
> and get the exact same effect as if you'd typed 'return' or 'RETURN'.
>

Since we can get the g77 source code, is it possible for us to change it so
that even under DOS enviroment it is case-sensitive?

I found that the f2c did the same thing to "change" the subroutines to lower
case. [ ie. MPI_Something() is change to mpi_something__() ].

Is there anybody know how to make a change in either g77 source code or f2c
source code so that we can make a case sensitive g77 or f2c? (And also won't
include those double under scores "__")

Thanks,

Fan Zhang

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