[Rd] package matrix dummy.cpp

Prof Brian Ripley ripley at stats.ox.ac.uk
Sun Nov 28 17:00:53 CET 2010

It is Matrix, not matrix ....

I too have corresponded with them about this.  It seems to be a legacy 
from when the package contained C++ code, and can now be deleted.

On Sun, 28 Nov 2010, Ambrus Kaposi wrote:

> Hi,
> The recommended package matrix contains an empty file src/dummy.cpp
> which results in using g++ instead of gcc to link Matrix.so.
> What is the reason for that? Is there any difference between using g++
> or gcc? (There are no other cpp files in the source)
> I asked the maintainers of the package (matrix-authors at r-project.org)
> 3 weeks ago but haven't received any answer.
> On my system (NixOS Linux distribution, http://nixos.org) I can't
> compile package Matrix unless this file is deleted.

Most likely you have not installed the C++ compiler (which is usually 
g++ on Linux) -- but you shouldn't need to in order to install R.

> Thank you very much,
> Ambrus Kaposi
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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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