<p>I mentioned this in the downstream bug, but for me 5.4 fails to build even with just <code>CFLAGS="-O2 -g0"</code> giving the same error (-g0 is just to disable a previous -g if specified and should be harmless). Builds fine with 5.3 or if I use a normal or no -g.</p>
<p>Some parsing error leading to something missing perhaps? I don't think the compiler itself is causing the behavior. But for reference, using gcc-9.2.0, binutils 2.33.1, glibc 2.30, and linux headers 5.3.</p>

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