lemming at henning-thielemann.de
Wed Feb 20 22:39:37 EST 2008
On Wed, 20 Feb 2008, Johan Tibell wrote:
> On Wed, Feb 20, 2008 at 5:16 PM, Henning Thielemann
> <lemming at henning-thielemann.de> wrote:
> > I have upgraded to Cabal 1.2 while still using GHC-6.4.1. In the Haskore
> > project there is the module NewResolutions.lhs which let GHC run into
> > extensive swapping (certainly due to excessive memory consumption) on
> > compilation when compiled with optimization. One can say, it cannot be
> > compiled this way. This is clearly a compiler bug, but upgrading the
> > compiler is not an option here. Thus I used unoptimized compilation so
> > far. Now, Cabal 1.2 seems to have optimization set by default. While it
> > was easy to add optimization by using 'GHC-Options' field it is not
> > obvious how to override Cabal defaults.
> > I don't think it was a good idea to switch on optimization silently from
> > one Cabal version to another one. It would have been better to let people
> > configure Cabal globally and manually to use optimization.
> But we definitely want optimization on by default to prevent a poor
> user experience, right?
This could be achieved by shipping Cabal with a default settings file.
It's however difficult to add new default options in a later update installation.
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