make check reg-tests-1b.R fails with Ubuntu R

but all it takes is 

wajig install libatlas3gf-base

Aha!  I installed that, and now on that machine BOTH the stock Ubuntu
R and my own built-from-source R get the correct answer.  Wonderful!

Is there a good way to run the "make check" tests from an already
installed R?  ("R check" doesn't do it.)

So try installing 'a better BLAS'.  Maybe we can distill this into a pure C
program exhibiting the same issue and bring it to the BLAS maintainer?

I know nothing about BLAS C hacking, but the test case R is using does
sound pretty simple.  For bug reporting purposes, I may try setting up
an equivalent C test case a month or two down the road, but I can't
justify the time sink right now.

Andrew Piskorski <atp at piskorski.com>
http://www.piskorski.com/