Date: Wed, 11 Sep 2024 07:11:53 +0000 From: bugzilla-noreply@freebsd.org To: ports-bugs@FreeBSD.org Subject: [Bug 281431] www/qt5-webengine: fix build with clang and libc++ 19 Message-ID: <bug-281431-7788@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D281431 Bug ID: 281431 Summary: www/qt5-webengine: fix build with clang and libc++ 19 Product: Ports & Packages Version: Latest Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: Individual Port(s) Assignee: kde@FreeBSD.org Reporter: dim@FreeBSD.org Assignee: kde@FreeBSD.org Flags: maintainer-feedback?(kde@FreeBSD.org) 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 undef= ined template 'std::char_traits<unsigned short>' 820 | static_assert(is_same<_CharT, typename traits_type::char_type>::value, | ^ =20 ../../../../kde-qtwebengine-5.15.17p3/src/3rdparty/chromium/v8/src/inspecto= r/v8-string-conversions.cc:390:26: note: in instantiation of template class 'std::basic_string<unsigned short>' requested here 390 | std::basic_string<UChar> UTF8ToUTF16(const char* stringStart, siz= e_t length) { | ^ /usr/include/c++/v1/__fwd/string.h:23:29: note: template is declared here 23 | struct _LIBCPP_TEMPLATE_VIS char_traits; | ^ Upstream v8 has fixed this in commit 182d9c05e78 [2], so add it as a backported patch, until the next version of qt5-webengine is released. Also, clang 19 now implements CWG 96 [1], which requires a template argument list after a 'template' keyword, resulting in errors similar to: =20 ../../../../kde-qtwebengine-5.15.17p3/src/3rdparty/chromium/third_party/bli= nk/renderer/platform/wtf/hash_table.h:1789:23: error: a template argument list is expected after a name prefixed by the template keyword [-Wmissing-template-arg-list-after-template-kw] 1789 | Allocator::template BackingWriteBarrier(&table_); | ^ =20 ../../../../kde-qtwebengine-5.15.17p3/src/3rdparty/chromium/third_party/bli= nk/renderer/platform/wtf/hash_table.h:1847:23: error: a template argument list is expected after a name prefixed by the template keyword [-Wmissing-template-arg-list-after-template-kw] 1847 | Allocator::template BackingWriteBarrier(&table_); | ^ =20 ../../../../kde-qtwebengine-5.15.17p3/src/3rdparty/chromium/third_party/bli= nk/renderer/platform/wtf/hash_table.h:2015:23: error: a template argument list is expected after a name prefixed by the template keyword [-Wmissing-template-arg-list-after-template-kw] 2015 | Allocator::template BackingWriteBarrier(&table_); | ^ =20 ../../../../kde-qtwebengine-5.15.17p3/src/3rdparty/chromium/third_party/bli= nk/renderer/platform/wtf/hash_table.h:2016:23: error: a template argument list is expected after a name prefixed by the template keyword [-Wmissing-template-arg-list-after-template-kw] 2016 | Allocator::template BackingWriteBarrier(&other.table_); | ^ and: =20 ../../../../kde-qtwebengine-5.15.17p3/src/3rdparty/chromium/third_party/per= fetto/include/perfetto/tracing/internal/track_event_data_source.h:110:20: error: a template argument list is expected after a name prefixed by the template keyword [-Wmissing-template-arg-list-after-template-kw] 110 | Base::template Trace([](typename Base::TraceContext ctx) { ctx.Flush(); }); | ^ =20 ../../../../kde-qtwebengine-5.15.17p3/src/3rdparty/chromium/third_party/per= fetto/include/perfetto/tracing/internal/track_event_data_source.h:124:20: error: a template argument list is expected after a name prefixed by the template keyword [-Wmissing-template-arg-list-after-template-kw] 124 | Base::template Trace([&](typename Base::TraceContext ctx) { | ^ =20 ../../../../kde-qtwebengine-5.15.17p3/src/3rdparty/chromium/third_party/per= fetto/include/perfetto/tracing/internal/track_event_data_source.h:431:20: error: a template argument list is expected after a name prefixed by the template keyword [-Wmissing-template-arg-list-after-template-kw] 431 | Base::template Trace([&](typename Base::TraceContext ctx) { | ^ =20 ../../../../kde-qtwebengine-5.15.17p3/src/3rdparty/chromium/third_party/per= fetto/include/perfetto/tracing/internal/track_event_data_source.h:548:22: error: a template argument list is expected after a name prefixed by the template keyword [-Wmissing-template-arg-list-after-template-kw] 548 | Base::template TraceWithInstances(instances, std::move(lambda)); | ^ =20 ../../../../kde-qtwebengine-5.15.17p3/src/3rdparty/chromium/third_party/per= fetto/include/perfetto/tracing/internal/track_event_data_source.h:563:20: error: a template argument list is expected after a name prefixed by the template keyword [-Wmissing-template-arg-list-after-template-kw] 563 | Base::template Trace([&](typename Base::TraceContext ctx) { | ^ In case of wtf, appending "<>" is enough to satisfy the constraint. For perfetto, this was fixed by upstream commit e2f661907a [3]. [1] https://libcxx.llvm.org/ReleaseNotes/19.html#deprecations-and-removals [2] https://chromium.googlesource.com/v8/v8.git/+/182d9c05e78 [3] https://android.googlesource.com/platform/external/perfetto/+/e2f661907a --=20 You are receiving this mail because: You are the assignee for the bug.=
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