<p>Ok, thanks for all the hunting and testing!<br>
That it's only happening on i686 and ppc64le is trying to tell me something but not sure what that something is.</p>
<p>I would be surprised if it's that macro pushing and popping as that's one of the rare places that <em>are</em> actually thread-protected in rpm, I'd expect it to be something in the build side (a pointer in the spec maybe) where things are... well, as I said in the commit message introducing it, walking on thin ice.</p>

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