[R] how to statically load a lib *.a

[Thomas Lumley]

On Mon, 10 Jan 2000, Tony Q. Zhang wrote:

> Hi, 
> 
>    I built a PORT library (libport.a) from NetLib, which contains lots of
> Fortran subroutins. How can I statically load it into R? Or should I
> recompile R with this library?

You don't statically load things into R, you dynamically load them.  This
should be possible using R SHLIB to compile and link the code.

If your library needs to link system libraries that are not linked by R
you may need to write a Makefile as well. This is tricky if you want it to
be portable. 


> btw, all I'm trying to do is to port _constrained_ optimization routine
> 'nlregb' into R. It is based on the public routines from netlib. I don't
> know exactly how difficult (or easy) it is. 

As of a few days ago we have constrained optimisation in the development
version of R, which is a much easier solution.

	-thomas


	


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