Dear Horiguchi-san,
Thanks for replying!
> > My gcc version is 4.8.5, and ninja is 1.10.2.
>
> gcc 4.8 looks very old?
>
> AFAIS all of those complaints are false positives and if I did this
> correclty, gcc 11.3 seems to have been fixed in this regard.
I switched to newer gcc (8.3, still old...) and tried. As you said it did not raise
such warnings.
> > # Solution
> >
> > PSA the patch to keep the compiler quiet. IIUC my compiler considered that
> > substitutions in PG_TRY() might be skipped. I'm not sure it is real problem,
> > but the workarounds are harmless.
> >
> > Or, did I miss something for ignoring above?
> >
> > [1]:
> https://wiki.postgresql.org/wiki/Developer_FAQ#:~:text=or%20MSVC%20trace
> points.-,What%20debugging%20features%20are%20available%3F,-Compile%2Dti
> me
>
> I think we don't want "fix" those as far as modern compilers don't
> emit the false positives.
OK, I should use newer one for modern codes. Sorry for noise and thank you for confirmation.
Best Regards,
Hayato Kuroda
FUJITSU LIMITED