From: Peter Eisentraut <peter@eisentraut.org>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Make building with LTO work on macOS
Date: Wed, 31 Jul 2024 04:32:02 +0000
Message-ID: <E1sZ10M-001yuN-A6@gemulon.postgresql.org> (raw)
Make building with LTO work on macOS
When building with -flto, the backend binary must keep many otherwise
unused symbols to make them available to dynamically loaded modules /
extensions. This has been done via -Wl,--export-dynamic on many
platforms for years. This flag is not supported by the macOS linker,
though. Here it's called -Wl,-export_dynamic instead.
Thus, make configure pick up on this variant of the flag as well.
Meson has the logic upstream as of version 1.5.0.
Without this fix, building with -flto fails with errors similar to [1]
and [2].
[1]: https://postgr.es/m/1581936537572-0.post%40n3.nabble.com
[2]: https://postgr.es/m/21800.1499270547%40sss.pgh.pa.us
Author: Wolfgang Walther <walther@technowledgy.de>
Discussion: https://www.postgresql.org/message-id/flat/427c7c25-e8e1-4fc5-a1fb-01ceff185e5b@technowledgy.de
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/73275f093f8969f4d2353fcc803377350aa650f6
Modified Files
--------------
configure | 43 +++++++++++++++++++++++++++++++++++++++++++
configure.ac | 6 ++++++
2 files changed, 49 insertions(+)
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To: pgsql-committers@postgresql.org
Cc: peter@eisentraut.org, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Make building with LTO work on macOS
In-Reply-To: <E1sZ10M-001yuN-A6@gemulon.postgresql.org>
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