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Date: Tue, 12 Mar 2013 16:55:16 +0900
From: Joerg Sonnenberger <joerg@britannica.bec.de>
To: freebsd-hackers@freebsd.org
Subject: Re: clang - odd macro / conditional expansion behaviour?
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On Mon, Mar 11, 2013 at 08:17:08PM -0700, Adrian Chadd wrote:
> I've hit this rather amusing clang behaviour:

I think you are hitting a variant of
http://llvm.org/bugs/show_bug.cgi?id=10030.

Joerg