* Re: [gentoo-dev] x86 toolchain changes heads up
@ 2007-07-18 11:04 99% ` Tobias Klausmann
0 siblings, 0 replies; 1+ results
From: Tobias Klausmann @ 2007-07-18 11:04 UTC (permalink / raw
To: gentoo-dev
Hi!
On Tue, 17 Jul 2007, 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.
Do I understand this correctly?
Up until now, gcc implicitly assumed -march=i386 if nothing else
was specified by the user.
Now, it defaults to something different, so -mtune works
differently than it used to.
If both are correct, I have questions?
- With what version did/will gcc change?
Corollary: In what Changelog of gcc can I find out more?
(Rather: which changelog can I point my coworkers to)
- What's the new default?
Thanks,
Tobias
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2007-07-17 23:47 [gentoo-dev] x86 toolchain changes heads up Mike Frysinger
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