Gentoo Archives: gentoo-dev

From: Tom Wijsman <TomWij@g.o>
To: gentoo-dev@l.g.o
Subject: Re: [gentoo-dev] GCC 4.7 unmasking
Date: Mon, 25 Feb 2013 21:18:54
Message-Id: 20130225221829.698cc908@gentoo.org
In Reply to: Re: [gentoo-dev] GCC 4.7 unmasking by Piotr Szymaniak
1 On Mon, 25 Feb 2013 21:58:08 +0100
2 Piotr Szymaniak <szarpaj@××××××××.pl> wrote:
3
4 > On Sun, Feb 24, 2013 at 11:03:01PM -0600, Ryan Hill wrote:
5 > > I'm going to be unmasking 4.7.2 later this week. There are still
6 > > 47 open bugs blocking the 4.7 tracker, so if any are yours now
7 > > would be a good time to take a look at them.
8 > >
9 > > https://bugs.gentoo.org/390247
10 >
11 > There's an ugly bug [1] with -ffast-math discovered by mednafen
12 > developer(s?). Don't know if this is revelant for unmasking and if
13 > -ffast-math is "supported".
14 >
15 > [1] http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56125
16 >
17 >
18 > Piotr Szymaniak.
19
20 -ffast-math on certain libs cause chrom(ium|e) to fail when scrolling
21 on certain sites (eg. Google News) and pages (Extensions and Settings),
22 this happened to me on GCC 4.7.2. Whether or not this is intended to
23 break due to the sacrifices this flag makes is questionable...
24
25 Though people that use -ffast-math / -fLTO / -fuse-linker-plugin should
26 be on their own, thus I drop -ffast-math because it breaks my browser;
27 but that doesn't mean that those ricer flags should stop stabilization.
28
29
30 With kind regards,
31
32 Tom Wijsman (TomWij)
33 Gentoo Developer
34
35 E-mail address : TomWij@g.o
36 GPG Public Key : 6D34E57D
37 GPG Fingerprint : C165 AF18 AB4C 400B C3D2 ABF0 95B2 1FCD 6D34 E57D

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Re: [gentoo-dev] GCC 4.7 unmasking Rich Freeman <rich0@g.o>