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Re: Recent libstdc++ regression on i686-linux: abi/cxx_runtime_only_linkage.cc
On Wed, 27 Aug 2008, Brian Dessent wrote:
> "H.J. Lu" wrote:
>
> > For Linux/x86, if gcc is configured for xxx-*-linux, the default arch should
> > be xxx for both 32bit and 64bit, where xxx can be i[3456]86, pentium, ...
> > x86-64. Is someone working on such a patch?
>
> IMHO making this Linux specific just replaces one confusing and
> arbitrary decision with another. Why should --target=i686-*-linux imply
> -march=686 when, say, --target=i686-*-freebsd or --target=i686-*-elf
> still implies -march=386? If you want to imply a default -march from
> the target specification (and I think that's a perfectly good thing to
> want to do) then it should apply to all x86 targets equally. If that's
My proposal is exactly that the target triplet should imply -march on x86
- just as it implies -mcpu on SPARC where -mcpu means -march rather than
-mtune.
--
Joseph S. Myers
joseph@codesourcery.com