[R] Re: Problem: creating shared objects using lapack and blas

[Zhu Wang]

To solve my own problem, it seems better to follow instructions in
"Writing R Extensions" to build a library. I am making progress.

Thanks,

Zhu Wang

Statistical Science Department
Southern Methodist University
Dallas, TX 75275-0332

On Fri, 2004-05-28 at 13:11, Zhu Wang wrote:
> I am having trouble with creating shared objects with Fortran files,
> which use numerical libraries Lapack and Blas. I have read the section
> in "Writing R Extensions" but could not find what I needed and I am not
> at the stage to create a library.
> 
> What I did was 
> 
> $R CMD SHLIB --output=car file1.f file2.f ... file50.f -llapack -lblas
> 
> No error message so far,
> 
> But
> 
> $>dyn.load("./car")
> Error in dyn.load(x, as.logical(local), as.logical(now)) : 
> 	unable to load shared library "/home/zwang/R/pkg/car/src/./car":
>   /home/zwang/R/pkg/car/src/./car: undefined symbol: slamch_
> 
> I think the way I used to link Lapack and Blas was not correct, even
> though it worked fine when I used for running Fortran code before.
> 
> Thanks for any advice.
> 
> Zhu Wang
> 
> Statistical Science Department
> Southern Methodist University
> Dallas, TX 75275-0332
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