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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/98108] Broken Schwarz counter for iostreams
 initialization
Date: Sun, 06 Nov 2022 16:16:22 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98108

--- Comment #10 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Patrick Palka <ppalka@gcc.gnu.org>:

https://gcc.gnu.org/g:4e4e3ffd10f53ef71696bc728ab40258751a2df4

commit r13-3707-g4e4e3ffd10f53ef71696bc728ab40258751a2df4
Author: Patrick Palka <ppalka@redhat.com>
Date:   Sun Nov 6 11:16:00 2022 -0500

    libstdc++: Move stream initialization into compiled library [PR44952]

    This patch moves the static object for constructing the standard streams
    out from <iostream> and into the compiled library on systems that suppo=
rt
    init priorities.  This'll mean <iostream> no longer introduces a separa=
te
    global constructor in each TU that includes it.

    We can do this only if the init_priority attribute is supported because
    we need a way to ensure the stream initialization runs first before any
    user global initializer, particularly when linking with a static
    libstdc++.a.

            PR libstdc++/44952
            PR libstdc++/39796
            PR libstdc++/98108

    libstdc++-v3/ChangeLog:

            * include/std/iostream (__ioinit): No longer define here if
            the init_priority attribute is usable.
            * src/c++98/ios_init.cc (__ioinit): Define here instead if
            init_priority is usable, via ...
            * src/c++98/ios_base_init.h: ... this new file.=