[Bug c++/59256] qualified name in friend function declaration doesn't match previous declaration in inline namespace

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59256

--- Comment #10 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Mon Oct  3 14:36:22 2016
New Revision: 240719

URL: https://gcc.gnu.org/viewcvs?rev=240719&root=gcc&view=rev
Log:
Fix libstdc++ versioned namespace build

        PR libstdc++/68323
        PR libstdc++/77794
        * config/abi/pre/gnu-versioned-namespace.ver: Add exports for
        __cxa_thread_atexit and __gnu_cxx::__freeres.
        * include/Makefile.am: Add <experimental/bits/lfts_config.h>
        * include/Makefile.in: Regenerate.
        * include.bits/basic_string.h: Fix nesting of versioned namespaces.
        * include/bits/c++config: Declare versioned namespaces for literals.
        * include/bits/regex.h (basic_regex, match_results): Add workarounds
        for PR c++/59256.
        * include/bits/uniform_int_dist.h: Fix nesting of versioned namespace.
        * include/std/chrono: Likewise.
        * include/std/complex: Likewise.
        * include/experimental/bits/fs_fwd.h: Declare versioned namespace.
        * include/experimental/bits/lfts_config.h: Declare versioned
        namespaces.
        * include/experimental/algorithm: Include
        <experimental/bits/lfts_config.h>.
        * include/experimental/any: Likewise.
        * include/experimental/bits/erase_if.h: Likewise.
        * include/experimental/chrono: Likewise.
        * include/experimental/functional: Likewise.
        * include/experimental/memory_resource: Likewise.
        * include/experimental/optional: Likewise.
        * include/experimental/propagate_const: Likewise.
        * include/experimental/random: Likewise.
        * include/experimental/ratio: Likewise.
        * include/experimental/system_error: Likewise.
        * include/experimental/tuple: Likewise.
        * include/experimental/type_traits: Likewise.
        * include/experimental/utility: Likewise.
        * include/experimental/string_view: Likewise. Fix nesting of
        versioned namespaces.
        * include/experimental/bits/string_view.tcc: Reopen inline namespace
        for non-inline function definitions.
        * testsuite/17_intro/using_namespace_std_exp_neg.cc: New test.
        * testsuite/20_util/duration/literals/range.cc: Adjust dg-error line.
        * testsuite/experimental/any/misc/any_cast_neg.cc: Likewise.
        * testsuite/experimental/propagate_const/assignment/move_neg.cc:
        Likewise.
        * testsuite/experimental/propagate_const/cons/move_neg.cc: Likewise.
        * testsuite/experimental/propagate_const/requirements2.cc: Likewise.
        * testsuite/experimental/propagate_const/requirements3.cc: Likewise.
        * testsuite/experimental/propagate_const/requirements4.cc: Likewise.
        * testsuite/experimental/propagate_const/requirements5.cc: Likewise.
        * testsuite/ext/profile/mutex_extensions_neg.cc: Likewise.

Added:
   
branches/gcc-6-branch/libstdc++-v3/testsuite/17_intro/using_namespace_std_exp_neg.cc
Modified:
    branches/gcc-6-branch/libstdc++-v3/ChangeLog
    branches/gcc-6-branch/libstdc++-v3/include/bits/regex.h