R help - Aug 1999 - s_copy

I'm trying to port some routines from S to R.  The code includes some
fortran stuff that calls lapack.  In the past in similar situations, but
without any lapack calls, I've had success using simply, as in the 
V&R R-complements,

        R SHLIB -o rq.so *.f

then in R

        dyn.load("rq.so")

But now when the code is called from R, R crashes and I get a message

        undefined symbol:  s_copy 

This reference is evidently resolved in the Splus linking, but I vaguely
recall problems like this in ancient versions of Splus.

I'm running V63.2 of R for i586/linux.

If someone could provide some diagnosis, or suggestions for further testing,
I would be most grateful.


url:	http://www.econ.uiuc.edu		Roger Koenker	
email	roger at ysidro.econ.uiuc.edu		Department of Economics
vox: 	217-333-4558				University of Illinois
fax:   	217-244-6678				Champaign, IL 61820

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On Mon, 23 Aug 1999, Roger Koenker wrote:
> 
> 
> I'm trying to port some routines from S to R.  The code includes some
> fortran stuff that calls lapack.  In the past in similar situations, but
> without any lapack calls, I've had success using simply, as in the 
> V&R R-complements,
> 
>         R SHLIB -o rq.so *.f
> 
> then in R
> 
>         dyn.load("rq.so")
> 
> But now when the code is called from R, R crashes and I get a message
> 
>         undefined symbol:  s_copy 
> 
> This reference is evidently resolved in the Splus linking, but I vaguely
> recall problems like this in ancient versions of Splus.
> 
> I'm running V63.2 of R for i586/linux.
> 
> If someone could provide some diagnosis, or suggestions for further
testing,
> I would be most grateful.
I had exactly that (and two others) on early versions of the mclust port.
If I recall correctly, it means you need to load in more of LAPACK,
as I believe s_copy is a LAPACK utility routine: it is certainly
in the S executable to link against.

If you use 0.65.0 (due for release on Friday) it will tell you at
dyn.load time about missing symbols. I do recommend an upgrade.

-- 
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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