[Haskell-cafe] RFC: "Native -XCPP" Proposal

[Bardur Arantsson]

On 05/21/2015 05:36 PM, Malcolm Wallace wrote:
> 
> On 21 May 2015, at 15:54, Bardur Arantsson wrote:
> 
>> fork/exec is almost certainly going to be negligable compared to the
>> overall compile time anyway. It's not like GHC is fast enough for it to
>> matter.
> 
> Don't count on it.  On our Windows desktop machines, fork/exec costs approximately one third of a second, instead of the expected small number of milliseconds or less.  The reasons are unknown, but we suspect a misconfigured anti-virus scanner (and for various company policy reasons we are prohibited from doing the investigation that could confirm or deny this hypothesis).
> 

Yeah, that sounds... broken.

Regards,