* Re: [gentoo-dev] x86 toolchain changes heads up
@ 2007-07-18 19:47 99% ` Mike Frysinger
0 siblings, 0 replies; 1+ results
From: Mike Frysinger @ 2007-07-18 19:47 UTC (permalink / raw
To: gentoo-dev
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On Wednesday 18 July 2007, Chris Gianelloni wrote:
> On Tue, 2007-07-17 at 19:47 -0400, Mike Frysinger wrote:
> > historically, gcc on x86 has always defaulted to i386. some people
> > noticed recently that glibc-2.6 fails to build in this situation as they
> > were only setting -mtune via CFLAGS, not -march. i'll be tweaking gcc so
> > that it will default -march based on your CHOST. so all the i686-*
> > people will now have a default -march=i686 implied in their gcc systems,
> > i586-* people will have -march=i586, etc... keep in mind this is merely
> > the default.
>
> Have you spoken with upstream about this? Is there any way they would
> adopt it there?
my reading of the code is that they do this on purpose. they set the default
*tune* based on target, not arch. the gcc man page also quotes that the
default -march is i386 if no -march is set.
-mike
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2007-07-17 23:47 [gentoo-dev] x86 toolchain changes heads up Mike Frysinger
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