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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++/104605] _GLIBCXX_USE_C99_STDINT_TR1 macro is not
 defined for canadian cross freestanding C++ toolchain
Date: Tue, 04 Oct 2022 14:30:35 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104605

--- Comment #16 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Oops, I put the wrong PR number on this commit:

https://gcc.gnu.org/g:7cdab65f3d770345903023f357b6ca96bc85a002

commit r13-3059-g7cdab65f3d770345903023f357b6ca96bc85a002
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Mon Oct 3 21:49:27 2022 +0100

    libstdc++: Make <cstdint> work freestanding [PR107134]

    When gcc/config.gcc defines use_gcc_stdin=3Dwrap, GCC's <stdint.h> tries
    to use libc's <stdint.h> unless -ffreestanding is used.

    When libstdc++ is configured --disable-hosted-libstdcxx we want
    <cstdint> to work even without -ffreestanding being given. This is a
    kluge to make it include GCC's <stdint-gcc.h> directly even without
    -ffreestanding.

    libstdc++-v3/ChangeLog:

            PR libstdc++/107134
            * include/c_global/cstdint [!_GLIBCXX_HOSTED]: Include
            <stdint-gcc.h> directly.

This should be fixed now, please check.

I think we still want Arsen's patch in comment 10 for correctness, but this
makes libstdc++ cope without it.=