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Re: [Qemu-devel] [PATCH 1/8] tls: require compiler support for __thread


From: Peter Maydell
Subject: Re: [Qemu-devel] [PATCH 1/8] tls: require compiler support for __thread
Date: Tue, 13 Jan 2015 20:00:02 +0000

On 13 January 2015 at 19:48, Paolo Bonzini <address@hidden> wrote:
> It's in the pull request.

That was sneaky :-)

> Native TLS is supported by all platforms except Windows and, I think,
> OpenBSD, which will have to use GCC's emulated TLS.  For Windows we
> already do.  OpenBSD ports will have to use a new-enough GCC (basically
> depend on the GPLv3 GCC port).

Hmm. That's a chunk of users who are now going to have to
change the way they've been building QEMU. Does configure
at least blow up on the old gcc, or will we just silently
build a non-working QEMU?

(I have an OpenBSD VM at home, I should test it...)

Presumably we've also just effectively dropped support for
some of the obscure stuff we have ifdefs for in configure?

-- PMM



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