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Re: [Bug-gnubg] Win builds using gcc4: question

From: Øystein Johansen
Subject: Re: [Bug-gnubg] Win builds using gcc4: question
Date: Mon, 15 Jun 2009 12:42:42 +0200
User-agent: Thunderbird (Windows/20090302)

Massimiliano Maini wrote:
> Hi all,
> I can build using gcc 3 or 4.
> I remember somebody (Oystein ?) arguing we should go to gcc4, even if 
> there may be some
> issues to work on, since it produces better code 9and it allows using a 
> new sigmoid function
> (not sure it's already checked in tough).

Not entirely true about the sigmoid. The patch I've suggested used
instructions from SSE2 which is independent of which compiler you use
for building.

> My question is: can I put gnubg exes compiled with gcc4 into a gnubg 
> installation produced
> with gcc 3 ?

Yes! I can't see any reason why that should not work.

> If the answer is yes, I could provide gcc4 exes separately.

I think you can use gcc4 builds and abandon the gcc3 builds entirely.
(Unless you feel it's unstable or anything.)


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