Date: Mon, 12 May 2014 08:13:46 -0400 From: Rich Felker <dalias@...c.org> To: James Cloos <cloos@...loos.com> Cc: Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>, musl@...ts.openwall.com 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 <dalias@...c.org> writes: > > RF> I've tested it on gcc.godbolt.org 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. Rich
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