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Date: Tue, 12 Jul 2016 19:47:27 -0300
From: Alba Pompeo <>
Subject: Re: Re: Julia on musl libc systems

Alexander, great work!
Let's hope GCC developers look at it soon.

On Wed, Jun 29, 2016 at 2:03 PM, Alexander Monakov <> wrote:
> Hi!
> Thanks to the minimized testcase provided by Szabolcs, I've narrowed it down
> to a bad qsort call in gcc: the comparator provided to qsort lacks
> transitivity in some cases. One doesn't see this on a Glibc-hosted toolchain
> because Alpine implicitely enables -fno-strict-overflow, and also
> because with Glibc resulting sort order is different, and happens to avoid the
> gcc_assert that triggers on Alpine with musl.
> I've opened a GCC bug:
> Alexander

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