[R] g77 FFLAGS?

[Prof Brian Ripley]

On Wed, 11 Apr 2001, Rodney Sparapani wrote:

> I'm trying to compile R under Mac OS X using gcc/g77 2.95.2.  There is
> an interesting blurb in install:
>
> You must set whatever compilation flags (if any) are needed to ensure
> that FORTRAN `integer' is equivalent to a C int pointer and FORTRAN
> `double precision' is equivalent to a C double pointer.  This is checked
>
> during the configuration process.
>
> I'm not an avid FORTRAN user.  Can someone tell me what these FFLAGS
> might be for g77?  Thanks.

Normally none for pairs like gcc/g77, including in that case.  As it
*is* checked, did you just go ahead and see?

This is often needed when mixing compilers from different vendors,
though.

We would suggest that you use R-patched.tar.gz, which has hints about
how other people have done this, and some patches to make configuration
etc run more smoothly.  By the time 1.2.3 is released, compilation on
Mac OS X will be supported.

Brian

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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