From: Mike Frysinger <vapier@gentoo.org>
To: gentoo-dev@lists.gentoo.org
Subject: Re: [gentoo-dev] [RFC] CFLAGS paragraph for the GWN
Date: Sat, 30 Sep 2006 17:48:07 -0400 [thread overview]
Message-ID: <200609301748.08239.vapier@gentoo.org> (raw)
In-Reply-To: <451ED52E.5030407@bouton.name>
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On Saturday 30 September 2006 16:35, Lionel Bouton wrote:
> There is a lot of material out there about CFLAGS
`man gcc` always seemed fine to me
in fact, lets read the -ffast-math section:
-ffast-math
This option should never be turned on by any -O option since it can
result in incorrect output for programs which depend on an exact
implementation of IEEE or ISO rules/specifications for math func-
tions.
this flag is never safe to use in CFLAGS
> link='http://gentoo-wiki.com/CFLAGS_matrix'
no way will our documentation link to gentoo-wiki.com
> If possible, I'd like to expand the list of 3.4.6 -> 4.1.1 upgrade
> problems which are linked to experimental CFLAGS
i find maintaining a list of "safe" CFLAGS on a per-gcc basis to be a waste of
time ... but that's just me
-mike
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next prev parent reply other threads:[~2006-09-30 21:50 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-30 20:35 [gentoo-dev] [RFC] CFLAGS paragraph for the GWN Lionel Bouton
2006-09-30 20:58 ` Dominique Michel
2006-09-30 21:48 ` Mike Frysinger [this message]
2006-09-30 22:42 ` Lionel Bouton
2006-09-30 23:27 ` [gentoo-dev] " Ryan Hill
2006-09-30 21:48 ` Ryan Hill
2006-09-30 21:52 ` Robin H. Johnson
2006-09-30 22:37 ` Ryan Hill
2006-10-01 0:38 ` Robin H. Johnson
2006-10-01 11:23 ` Duncan
2006-10-01 16:49 ` Donnie Berkholz
2006-10-01 17:02 ` Diego 'Flameeyes' Pettenò
2006-10-01 18:00 ` Ryan Hill
2006-10-02 10:40 ` Duncan
2006-10-01 21:01 ` Jeroen Roovers
2006-10-01 0:37 ` [gentoo-dev] " George Prowse
-- strict thread matches above, loose matches on Subject: below --
2006-10-03 0:56 Lionel Bouton
2006-10-03 11:55 ` Chris Gianelloni
2006-10-03 12:26 ` Ciaran McCreesh
2006-10-03 13:15 ` Mike Frysinger
2006-10-04 8:35 ` Jan Kundrát
2006-10-03 22:37 ` Lionel Bouton
2006-10-04 12:25 ` Paul de Vrieze
2006-10-03 16:11 ` Josh Saddler
2006-10-03 17:16 ` Lionel Bouton
2006-10-03 17:22 ` Daniel Ostrow
2006-10-03 17:47 ` Charlie
2006-10-03 17:56 ` Stephen P. Becker
2006-10-03 17:49 ` Lionel Bouton
2006-10-03 20:46 ` Chris Gianelloni
2006-10-03 22:14 ` Lionel Bouton
2006-10-03 18:08 ` Simon Stelling
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