[R] link my own C library using Rcmd SHLIB

[ripley@stats.ox.ac.uk]

On Sat, 24 Aug 2002, Xiaoping Jin wrote:

> Hi Dr Ripley,
>
> Thank you for your email!
> Since I am a beginner on R, Could you tell me a little more, if you have
> time?
> First, where I can find makevar.win? I only saw "makefile" in my PC.

You create Makevars.win.  See some of the packages for examples.

> Second, how to set PKG_LIBS in that file?
> I have read manaul agian, if I did something in this file, I can use -l or
> -L flags to pass linker, am I right?

Yes.

>
> By the way, I have read your splus book, there you mentioned gnu complier.
> I can use gcc, dllwrap tool. Can I do this way?

Yes, but gcc -shared -o foo.so *,o test.a  is better.

> Now I am trying to firgure those out. I have some own package ( .a file),
> and I want to use them when I use .C function.
>
> Thanks,
>
>  Xiaoping
>
> On Sat, 24 Aug 2002 ripley at stats.ox.ac.uk wrote:
>
> > On Fri, 23 Aug 2002, Xiaoping Jin wrote:
> >
> > > Hi All,
> > >
> > > I have already used gcc to creat a library, for example, it is called
> > > "test.a", which includes many
> > > c objects.
> > >
> > > How to link my main "a.c" function to this library when I used Rcmd SHLIB
> > > to complier my main c program?
> > >
> > > I tried "Rcmd SHLIB a.c test.a". It does not work this way. Does anyone
> > > have idea about this?
> >
> > Set PKG_LIBS in a file Makevars.win just as you would do when setting up
> > the sources for an R package (which I think would be the preferred way to
> > do this).
> >
> > --
> > 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
> >
> >
>
>

-- 
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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