[Rd] Re: [R] Cross build Makefile
Prof Brian Ripley
ripley at stats.ox.ac.uk
Mon Jun 21 20:39:31 CEST 2004
On Mon, 21 Jun 2004, Iago Mosqueira wrote:
> O Lun, 2004-06-21 ás 08:00, Prof Brian Ripley escribiu:
>
> > On Mon, 21 Jun 2004, Iago Mosqueira wrote:
> >
> > > Hello,
> > >
> > > I am trying to use Yan and Rossini's Makefile for cross building Windows
> > > versions of R packages in Linux with R 1.9.0. When compiling R with the
> > > mingw tools I get an error about expm1 being undeclared when first found
> > > at src/main/arithmetic.c:1019
> > >
> > > If I fiddle a bit with it later on I also get errors about log1p bein
> > > undeclared.
> > >
> > > Any idea what should I look for?
> > >
> > > I am using R 1.9.0 in Debian, with R-mathlib avaliable, and gcc 3.3.
> >
> > Did you build your own cross-compiler, or where did you get it from?
>
> No, I got it following their indications, and I think it is from your
> webpage, is that recent enough?
Mine is now, but a copy of what was there a few months ago might not be.
Specifically
-rw-r--r-- 1 ripley bdr 6549268 Apr 2 16:04 mingw-cross2.tar.bz2
is fine.
> > log1p is definitely declared in math.h these days, but it used not to be,
> > so that one might be due to using too old a cross-compiler.
> >
> > For expm1, the Windows config.h has /* #undef HAVE_EXPM1 */ which means it
> > is declared in Rmath.h and compiled up as part of libnmath.a. Here all I
> > can suggest is that you check the headers files are correct and that you
> > are finding the ones for cross-compiling and not for Linux compiling
> > (which can be a problem if the cross-compiler was built incorrectly or you
> > configured R in that source tree without the right options).
>
> I'll check it out. Thanks,
--
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 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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