[Bug libstdc++/91067] [9/10 Regression] Clang compiler can't link executable if std::filesystem::directory_iterator is encountered

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91067

--- Comment #19 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu Aug 29 12:16:27 2019
New Revision: 275032

URL: https://gcc.gnu.org/viewcvs?rev=275032&root=gcc&view=rev
Log:
PR libstdc++/91067 add more missing exports for directory iterators

        PR libstdc++/91067
        * acinclude.m4 (libtool_VERSION): Bump to 6:28:0.
        * configure: Regenerate.
        * config/abi/pre/gnu.ver (GLIBCXX_3.4.28): Add new version. Export
        missing symbols.
        * testsuite/27_io/filesystem/iterators/91067.cc: Test move
        constructors.
        * testsuite/util/testsuite_abi.cc: Add new symbol version.

Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/acinclude.m4
    trunk/libstdc++-v3/config/abi/pre/gnu.ver
    trunk/libstdc++-v3/configure
    trunk/libstdc++-v3/testsuite/27_io/filesystem/iterators/91067.cc
    trunk/libstdc++-v3/testsuite/util/testsuite_abi.cc