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Re: [Qemu-devel] [PATCH v3 4/4] configure: Add workaround for ccache and

From: John Snow
Subject: Re: [Qemu-devel] [PATCH v3 4/4] configure: Add workaround for ccache and clang
Date: Mon, 23 Mar 2015 12:32:43 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0

On 03/23/2015 11:14 AM, Peter Maydell wrote:
On 23 March 2015 at 14:52, John Snow <address@hidden> wrote:
On 03/23/2015 09:11 AM, Peter Maydell wrote:
This is really working around a bug in either ccache or
in the way Fedora has configured ccache, so I kind of
feel it ought to be dealt with there. However I don't
object too much to our including the workaround in our

I feel like it might be an inescapable consequence of using both ccache and
clang together on any system, not just Fedora.

Right, but it's not *QEMU* specific, so it would be better

OK, true.

if either (a) ccache automatically enabled this if it
noticed it was being run for clang or (b) Fedora automatically
enabled this in their aliases which make 'clang' automatically
be "clang run via ccache".

Is there a bug filed against Fedora for this?

-- PMM

Not that I can see on the RH or ccache/LLVM bugzillas at a quick glance. I can try to file something for ccache after I look a little more carefully.

In the meantime, until things improve, I think this workaround is sane if we want to deal with clang failures less.

I'll clean up the other minor comments and resubmit.


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