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Date:	Mon, 15 Mar 1999 16:27:33 -0600 (CST)
From:	Mumit Khan <khan AT xraylith DOT wisc DOT edu>
To:	Richard Stanton <stanton AT haas DOT berkeley DOT edu>
cc:	cygwin AT sourceware DOT cygnus DOT com
Subject:	Re: CFORTRAN for cygwin/egcs?
In-Reply-To:	<000f01be6f12$cf737f60$893a85d1@CONNOR.berkeley.edu>
Message-ID:	<Pine.SUN.3.93.990315162021.2930I-100000@modi.xraylith.wisc.edu>
MIME-Version:	1.0

On Mon, 15 Mar 1999, Richard Stanton wrote:

> There's a rather useful package called CFORTRAN, that makes calling FORTRAN
> subroutines from C, and vice versa, very simple, on the machines it knows
> about.
> 
> Has anyone got this working with egcs gcc/g77 under NT? If so, I'd
> appreciate any pointers or examples you may have.

Hmmm ... it's been years since I've used, but from what I remember, it
should be pretty trivial to use with gcc/g77 on Windows32. I believe the
magic was to define -Df2cFortran (or something like that) and the rest
just worked.

One potential gotcha, and only applicable if you're using gcc/c++ as the
link driver instead of using g77, is that f77 runtime library bundled with 
g77 has been renamed from libf2c.a to libg2c.a, and so you'll need to link
with -lg2c instead of -lf2c. 

  
  $ gcc -Df2cFortran -c cfile.c
  $ g77 -c ffile.f
  $ gcc -o mixedprog ffile.o cfile.o -lg2c

What problems have you had?

Mumit



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