Gentoo Archives: gentoo-dev

From: "Paweł Hajdan
To: gentoo-dev@l.g.o
Subject: Re: [gentoo-dev] Re: GCC upgrades, FUD and gentoo documentation
Date: Mon, 10 Oct 2011 15:34:38
Message-Id: 4E931049.5040808@gentoo.org
In Reply to: [gentoo-dev] Re: GCC upgrades, FUD and gentoo documentation by "Diego Elio Pettenò"
1 On 10/10/11 4:45 AM, Diego Elio Pettenò wrote:
2 > Not really. GCC, like most other libraries, only supports
3 > forward-compatibility. Which means that you can use code built against
4 > 4.5 when using 4.6.
5
6 I'm not sure about that. It might be a bit speculative, but I think I
7 remember problems with that unless I rebuilt everything with new GCC
8 (this was not with 4.5 and 4.6, but some older versions).
9
10 > On the other hand without any specifics as to what failed for you it is
11 > difficult to judge whether you found an ABI break or simply a bug in
12 > your library or code...
13
14 If rebuilding with new GCC fixes the problem I think it means the
15 problem was with ABI.

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