GHC 6.2.1 and FedoraCore2: ar-related build problem, looked like readline problem

[Henrik Nilsson]

 > The correct way would probably be testing the exit code *and* stderr.
 > There's already some support for this kind of stuff in our aclocal.m4
 > IIRC, I'll have a look into it...

Testing stderr seemed horribly fragile to me, though: who knows
what people may or may not opt to write to stderr in various
versions of "ar" now or in the future? That's why I thought
looking for concrete evidence that the right thing actually
had happened might be a more solid solution.

Best,

/Henrik

-- 
Henrik Nilsson
School of Computer Science and Information Technology
The University of Nottingham
nhn at cs.nott.ac.uk

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