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Date: Mon, 12 May 2014 08:13:46 -0400
From: Rich Felker <>
To: James Cloos <>
Cc: Thomas Petazzoni <>,
Subject: Re: Broken GCC versions: 4.8.2 and 4.9.0

On Sun, May 11, 2014 at 04:08:37PM -0400, James Cloos wrote:
> >>>>> "RF" == Rich Felker <> writes:
> RF> I've tested it on and others have tested with local
> RF> gcc 4.8.2 and 4.9.0, probably distro-provided (I didn't ask).
> I just tried debian-sid's 4.9.  That does show the bug.  As does their
> gcc-snapshot version (a 4.10 pre).
> Perhaps the distro(s) which have the bug with 4.8.2 backported the commit
> where the bug first occurs?

Indeed, I think all the systems tested have been Debian-based (Debian
or Ubuntu) and a quick check shows that their gcc-4.8 package, despite
calling itself 4.8.2, is actually sync'd with the upstream 4.8 svn
branch... There's a giant patch
gcc-4.8-4.8.2/debian/patches/svn-updates.diff in the debian diff for
the package, which contains everything between 4.8.2 release and the
svn head. This is where the bug can probably be found.

In short, Debian/Ubuntu's "gcc-4.8" package is essentially gcc 4.9.0.


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