[Haskell-cafe] GHC needs a 64 bit machine to be fast?

[Peter Verswyvelen]

pass the flag -fforce-recomp
On Wed, Apr 8, 2009 at 12:21 PM, Roel van Dijk <vandijk.roel at gmail.com>wrote:

> > Suspiciously, "ghc -O2  --make" is almost as fast at 24.438s (6.10.2)
>
> You have to be careful when recompiling with a different -O setting
> that you first remove all intermediate files (.o and .hi). I think
> that GHC only looks at the source to determine which files need to be
> compiled and not at any settings.
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