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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: Sam James <sam@gentoo.org>
Cc: pgsql-bugs@lists.postgresql.org
Subject: Re: Build failure with GCC 15 (defaults to -std=gnu23)
Date: Sun, 17 Nov 2024 17:50:47 -0500
Message-ID: <3175762.1731883847@sss.pgh.pa.us> (raw)
In-Reply-To: <CA+hUKGJEnmapE7YYEfdJYZ-yGmcDpVGRrQ_eEVdcux26ZNJq_g@mail.gmail.com>
References: <87o72eo9iu.fsf@gentoo.org>
	<3073930.1731867112@sss.pgh.pa.us>
	<CA+hUKGJsuBiBcYnmJhGUNEg6Ud3n+C3K8c6em6RTOgu1E-dbwg@mail.gmail.com>
	<3160019.1731875201@sss.pgh.pa.us>
	<CA+hUKGLJnhpJBrsutH2aK91ARMS+XCez5P8XrR-kwdfSyLXGiQ@mail.gmail.com>
	<3169079.1731880169@sss.pgh.pa.us>
	<CA+hUKGJEnmapE7YYEfdJYZ-yGmcDpVGRrQ_eEVdcux26ZNJq_g@mail.gmail.com>

Thomas Munro <thomas.munro@gmail.com> writes:
> It sounds like we should stop using the old and broken
> AC_CHECK_HEADER_STDBOOL macro.

Yeah, that's what I was imagining: assume that <stdbool.h> exists
and works, and check only to see if sizeof(bool) is acceptable.

> ... Later autoconf versions check for
> C99 "or later", but we're stuck with the old one and I doubt we are
> going to upgrade it.

I'm not sure --- there was some discussion a week or two ago about
upgrading autoconf after all.  But whether we do or not, it's hard
to see what AC_HEADER_STDBOOL is buying us.

			regards, tom lane





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