linux-kernel - Re: fyi: gcc33-hammer crashes when compiling kvm emulate.c

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Date:	Tue, 26 Oct 2010 19:01:43 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Andi Kleen <andi@...stfloor.org>, kvm@...r.kernel.org,
	avi@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: fyi: gcc33-hammer crashes when compiling kvm emulate.c

> Not unless they are actively known to break.  People get huffy about it

Well they do -- i just found out.

> because even if it is known to have problems it doesn't break *their*
> particular configuration.  I'm getting to be of the opinion that people
> who compile modern kernels with ancient compilers and expect it to work
> are suffering from some particular kind of insanity -- it's nothing the
> distros do.  The only exception are embedded people who compile with the
> latest 3.4 gcc; they have explained they do so because newer gccs have
> too many dependencies (the actual compiler, not the generated code) and
> for speed.

At least in the old days the main reason for gcc 3 was build speed.
AKPM and some others used to be fond of that.

3.x is apparently much faster than 4.x

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only.
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