Ciaran McCreesh wrote:
On Fri, 30 May 2008 15:07:43 -0700
Donnie Berkholz <[EMAIL PROTECTED]> wrote:
On 22:53 Fri 30 May , Ciaran McCreesh wrote:
On Sat, 31 May 2008 00:47:44 +0300
Mart Raudsepp <[EMAIL PROTECTED]> wrote:
The story that matters here is, that a C++ corner case that does
not work on 0.01% of packages with --as-needed and breaks on
non-ELF platforms, should not cause good things for our users to
be shot down.
You could say the same thing for -ffast-math...
When there's a feature that only breaks one package that we know of,
wouldn't it make more sense to enable it globally and add an
exception than to do it the other way around?
Both -ffast-math and --as-needed make the compiler / linker violate
various standards in ways that can't be used safely unless a package
has been explicitly designed to work with it.
I know exactly which standard -ffast-math violates (IEEE/ISO floating
point spec) and how (the man page is quite complete about this),
--as-needed doesn't have any warning about this, there isn't any
standard that it violates since it's the default behavior at least for 2
platform (one from those who wrote most of the ELF spec...).
Point the spec, and the paragraph violated.
lu
--
Luca Barbato
Gentoo Council Member
Gentoo/linux Gentoo/PPC
http://dev.gentoo.org/~lu_zero
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