[Bug c++/104433] [modules] Importing <memory> and using std::make_shared causes linker errors

["cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104433

--- Comment #1 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:edbb2551d156d69a2e337dcd8daa69f2680d57ea

commit r13-3163-gedbb2551d156d69a2e337dcd8daa69f2680d57ea
Author: Patrick Palka <ppalka@redhat.com>
Date:   Fri Oct 7 09:32:45 2022 -0400

    c++ modules: static var in inline function [PR104433]

    The below testcase fails to link with the error

      undefined reference to `f()::y'

    ultimately because during stream out for the static VAR_DECL y we
    override DECL_EXTERNAL to true, which later during IPA confuses
    symbol_table::remove_unreachable_nodes into thinking it's safe
    to not emit the symbol.

    The streaming code here already avoids overriding DECL_EXTERNAL for
    inline vars and functions, so it seems natural to extend this to
    static vars from an inline function.

            PR c++/104433

    gcc/cp/ChangeLog:

            * module.cc (trees_out::core_bools): Don't override
            DECL_EXTERNAL to true for static variables from an inline
            function.

    gcc/testsuite/ChangeLog:

            * g++.dg/modules/static-2_a.H: New test.
            * g++.dg/modules/static-2_b.C: New test.