https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=281478
--- Comment #3 from commit-h...@freebsd.org --- A commit in branch 2024Q3 references this bug: URL: https://cgit.FreeBSD.org/ports/commit/?id=a9aee8de59cd8992947417704a0e7d86c13d221a commit a9aee8de59cd8992947417704a0e7d86c13d221a Author: Dimitry Andric <d...@freebsd.org> AuthorDate: 2024-09-13 10:36:00 +0000 Commit: Dimitry Andric <d...@freebsd.org> CommitDate: 2024-09-28 09:48:23 +0000 devel/libxsd-frontend: fix build with libc++ 19 As noted in the libc++ 19 release notes [1], std::char_traits<> is now only provided for char, char8_t, char16_t, char32_t and wchar_t, and any instantiation for other types will fail. This causes www/qt5-webengine to fail to compile with clang 19 and libc++ 19, resulting in errors similar to: /usr/include/c++/v1/string:820:42: error: implicit instantiation of undefined template 'std::char_traits<XSDFrontend::Bits::None>' 820 | static_assert(is_same<_CharT, typename traits_type::char_type>::value, | ^ /wrkdirs/usr/ports/devel/libxsd-frontend/work/libxsd-frontend-2.1.0/libxsd-frontend/xml.hxx:100:23: note: in instantiation of template class 'std::basic_string<XSDFrontend::Bits::None>' requested here 100 | NarrowString r (s); | ^ /usr/include/c++/v1/__fwd/string.h:23:29: note: template is declared here 23 | struct _LIBCPP_TEMPLATE_VIS char_traits; | ^ The `Bits::None` construct used by libxsd-frontend is meant to disable unwanted conversions, but it no longer works if `std::char_traits>` is undefined for this type. Fix it by removing the `Bits` namespace and only enabling the converting constructors if the first type of `StringTemplate` is `wchar_t`. [1] https://libcxx.llvm.org/ReleaseNotes/19.html#deprecations-and-removals PR: 281478 Approved by: maintainer timeout (2 weeks) MFH: 2024Q3 (cherry picked from commit c1c4aae636e9e8c5fc146caeb9ad734e20f97115) .../files/patch-libxsd-frontend_types.hxx (new) | 62 ++++++++++++++++++++++ 1 file changed, 62 insertions(+) -- You are receiving this mail because: You are the assignee for the bug.
