Message-ID: <alpine.OSX.1.00.0903200744510.3625@tystie.local>
Date: 2009-03-20T07:48:28Z
From: Brian Ripley
Subject: cblas on Mac and Linux
In-Reply-To: <49C320A4.1000500@csse.unimelb.edu.au>
On Fri, 20 Mar 2009, Gad Abraham wrote:
> Hi,
>
> I've got a package with some C code calling cblas functions (e.g.,
> cblas_dgemm). The code is called using .C() . In order to compile correctly
> either cblas.h on Linux or Accelerate.h on a Mac:
>
> #include <R.h>
> #ifdef MACOSX
> #include <Accelerate/Accelerate.h>
> #else
> #include <cblas.h>
> #endif
>
> Of course, this doesn't work well with the standard Makevars
> PKG_LIBS=$(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS) since I need to set the
> -DMACOSX flag for each platform.
>
> Do I need to create another makefile to decide which OS the code is running
> on, or is there an easier way of doing this?
You use configure -- see 'Wrtiing R Extensions' -- to fill in a
Makevars.in. But beware that in general $(BLAS_LIBS does not contain
a cblas, even on MacOS X, so if portability is any sort of issue, you
need to set PKG_LIBS via configure too.
>
> Thanks,
> Gad
>
> --
> Gad Abraham
> MEng Student, Dept. CSSE and NICTA
> The University of Melbourne
> Parkville 3010, Victoria, Australia
> email: gabraham at csse.unimelb.edu.au
> web: http://www.csse.unimelb.edu.au/~gabraham
>
> _______________________________________________
> R-SIG-Mac mailing list
> R-SIG-Mac at stat.math.ethz.ch
> https://stat.ethz.ch/mailman/listinfo/r-sig-mac
>
--
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