Problems building HEAD on Mac OS X Mavericks/Xcode 5

Corey O'Connor coreyoconnor at
Thu Nov 14 03:59:44 UTC 2013

Sound similar to an issue I've run into. There is some additional
information here:

This appears to occur in both happy and alex.


-Corey O'Connor
coreyoconnor at

On Wed, Nov 13, 2013 at 6:29 PM, Nick Partridge <nkpart at> wrote:

> Hi,
> I've hit a build failure when trying to build HEAD on Mavericks. I've
> logged a bug here with a lot of detail:
> When using alex 3.1.2, some of the generated files have spaces preceding
> preprocessor statements, while alex 3.1.0 doesn't do this. I guess this is
> possibly an alex bug, but this is my first time building GHC so I'm not
> really sure how the ecosystem works :)
> Huge shout-out to Carter S. for giving me a ton of help in nailing down
> this issue!
> - Nick
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> ghc-devs mailing list
> ghc-devs at
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