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 graphics/ogre3d19 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<unsigned short>' 820 | static_assert(is_same<_CharT, typename traits_type::char_type>::value, | ^ /wrkdirs/usr/ports/graphics/ogre3d19/work/sinbad-ogre-dd30349ea667/OgreMain/include/OgreUTFString.h:234:4: note: in instantiation of template class 'std::basic_string<unsigned short>' requested here 234 | dstring::iterator mIter; | ^ /usr/include/c++/v1/__fwd/string.h:23:29: note: template is declared here 23 | struct _LIBCPP_TEMPLATE_VIS char_traits; | ^ This can be fixed by defining `unicode_char` as `char32_t` instead of `uint32`, and `code_point` as `char16_t` instead of `uint16` in `OgreUTFString.h`. [1] https://libcxx.llvm.org/ReleaseNotes/19.html#deprecations-and-removals
Created attachment 254922 [details] graphics/ogre3d19: fix build with libc++ 19
A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/ports/commit/?id=da8138aa53e8f11947a37cef7eb2d874fd3370e6 commit da8138aa53e8f11947a37cef7eb2d874fd3370e6 Author: Dmitry Marakasov <amdmi3@FreeBSD.org> AuthorDate: 2024-11-08 15:35:45 +0000 Commit: Dmitry Marakasov <amdmi3@FreeBSD.org> CommitDate: 2024-11-08 15:35:45 +0000 graphics/ogre3d19: fix build with libc++ 19 PR: 282527 Submitted by: dim .../files/patch-OgreMain_include_OgreUTFString.h (new) | 15 +++++++++++++++ 1 file changed, 15 insertions(+)