[R] shared ATLAS library?

[Paul Gilbert]

>From "R Installation and Administration:"

   Note that the BLAS library will be used for several add-on packages as 
   well as for R itself. This means that it is better to use a
   shared BLAS library, as most of a static library will be compiled 
   into the R executable and each BLAS-using package. 

Is there an idiots guide on how to do this (or should idiots just not try). I've
compiled atlas as a static (.a) library and successfully built R (although, when
it is static, I don't know how to tell for sure that it is being used). However,
their seems to be little indication of how to make a shared (.so) ATLAS library.
I've had even less success with blas from netlib. (I compiled .so files and
generated a file libblas.so, but there are a lot of unresolved symbols, so R
crashes.)

Any help would be appreciated. (Linux or Solaris).

Thanks,
Paul Gilbert
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