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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/88264] Support glibc-style tunables for
 <memory_resource>
Date: Mon, 21 Nov 2022 12:44:38 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D88264

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This can't be done safely in libstdc++ because we can't call getenv safely.=
 We
could be dlopened while another thread is calling setenv.

But if that could be solved, other useful tunables would be the filenames to
use for chrono::tzdb (for tzdata.zi and leapseconds), and formatting options
for the default contract violation handler (e.g. human readable vs
log-friendly).=