Date: Tue, 17 Sep 2024 08:20:56 +0000 From: bugzilla-noreply@freebsd.org To: ports-bugs@FreeBSD.org Subject: [Bug 281553] devel/poco: fix build with libc++ 19 Message-ID: <bug-281553-7788@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D281553 Bug ID: 281553 Summary: devel/poco: fix build with libc++ 19 Product: Ports & Packages Version: Latest Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: Individual Port(s) Assignee: ports-bugs@FreeBSD.org Reporter: dim@FreeBSD.org CC: henry.hu.sh@gmail.com CC: henry.hu.sh@gmail.com Flags: maintainer-feedback?(henry.hu.sh@gmail.com) 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 devel/poco 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 undef= ined template 'std::char_traits<unsigned char>' 820 | static_assert(is_same<_CharT, typename traits_type::char_type>::value, | ^ /usr/include/c++/v1/__type_traits/is_constructible.h:42:62: note: in instantiation of template class 'std::basic_string<unsigned char>' requested here 42 | : public integral_constant<bool, __is_constructible(_Tp, __add_rvalue_reference_t<_Tp>)> {}; | ^ /usr/include/c++/v1/__type_traits/is_swappable.h:43:39: note: in instantiation of template class 'std::is_move_constructible<Poco::Data::LOB<unsigned char>>' requested here 43 | using __swap_result_t =3D __enable_if_t<is_move_constructible<_Tp>::value && is_move_assignable<_Tp>::value>; | ^ /usr/include/c++/v1/__type_traits/is_swappable.h:50:60: note: in instantiation of template type alias '__swap_result_t' requested here 50 | inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 __swap_result_t<_Tp> swap(_Tp& __x, _Tp& __y) | ^ =20 /wrkdirs/usr/ports/devel/poco/work/poco-1.12.4-all/Data/include/Poco/Data/L= OB.h:243:14: note: while substituting explicitly-specified template arguments into funct= ion template 'swap' 243 | inline void swap<Poco::Data::BLOB>(Poco::Data::BLOB& b1, Poco::Data::BLOB& b2) noexcept | ^ In this case it is enough to only enable the LOB constructor from std::basic_string when the type is plain char. [1] https://libcxx.llvm.org/ReleaseNotes/19.html#deprecations-and-removals --=20 You are receiving this mail because: You are the assignee for the bug.=
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