[Bug bootstrap/102831] [12 regression] Spurious -Wparentheses etc. warnings

[tschwinge at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102831

Thomas Schwinge <tschwinge at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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--- Comment #2 from Thomas Schwinge <tschwinge at gcc dot gnu.org> ---
(In reply to Rainer Orth from comment #0)
> Recently, Solaris bootstrap has repeatedly been broken in very confusing
> ways: [...]

(In reply to Eric Botcazou from comment #1)
> See PR bootstrap/101574 for a similar report.

Indeed.  But, hmm, that's unfortunate, as my commit
r12-3498-g6c79057fae6bbb36c4a4fd61c5b7107a16b71b17 "Don't maintain a warning
spec for 'UNKNOWN_LOCATION'/'BUILTINS_LOCATION' [PR101574]" has been meant to
generally resolve this issue (per my analysis/understanding) -- well, maybe it
did, and there really is another issue here?

Are you guys able to reliably reproduce the problem?  Asking because for me, it
was very flaky: some (seemingly random) change elsewhere in the compiler, and
PR101574 often didn't reproduce anymore (but came back later).  (But really
have not anymore seen it since the aforementioned commit.)

PR101204 and PR101292 may or may not be relevant, too.