title: R detection of Blas version
body: <p>Is there a way of detecting the version of BLAS that R is using from inside R?  I am using Ubuntu, and I have a couple of BLAS versions installed - I just don't know which one is "active" from R's point of view!</p>
  
  <p>I am aware of <a href="http://r.789695.n4.nabble.com/is-Rs-own-BLAS-td911515.html">http://r.789695.n4.nabble.com/is-Rs-own-BLAS-td911515.html</a> where Brian Ripley said in June 2006 that it was not possible - but have things changed?</p>