pgsql: Disable clang 16's -Wcast-function-type-strict.

From: Thomas Munro <tmunro(at)postgresql(dot)org>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Disable clang 16's -Wcast-function-type-strict.
Date: 2024-07-12 00:56:33
Message-ID: E1sS4aP-001JfU-QX@gemulon.postgresql.org
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Disable clang 16's -Wcast-function-type-strict.

This is a back-patch of commit 101c37cd into REL_14_STABLE and
REL_15_STABLE. Those branches had commit de8feb1f3, which turned on
-Wcast-function-type, but did not disable -Wcast-function-type-strict.
This silences warnings about function pointer types without prototypes
based on new C23 rules, that we want to suppress for now.

Reviewed-by: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Discussion: https://postgr.es/m/CA%2BhUKGKnBvdrbH2LW%2B7-Lv599t9JFOHjx%3Dxw-VQmdoj%3D9585CQ%40mail.gmail.com
Discussion: https://postgr.es/m/CA%2BhUKGJvX%2BL3aMN84ksT-cGy08VHErRNip3nV-WmTx7f6Pqhyw%40mail.gmail.com

Branch
------
REL_15_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/6e2552d180a0a3a694c2f91ec01bec51d9fed671

Modified Files
--------------
configure | 44 ++++++++++++++++++++++++++++++++++++++++++++
configure.ac | 6 ++++++
2 files changed, 50 insertions(+)

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