[Bug 274740] www/qt5-webengine: fix build with libc++ 17

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=274740

--- Comment #2 from commit-hook at FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/ports/commit/?id=bfcd2a9b6f168c590da52dfefa0aacf1b021d30f

commit bfcd2a9b6f168c590da52dfefa0aacf1b021d30f
Author:     Dimitry Andric <dim at FreeBSD.org>
AuthorDate: 2023-10-26 10:45:00 +0000
Commit:     Dimitry Andric <dim at FreeBSD.org>
CommitDate: 2023-11-04 16:26:51 +0000

    www/qt5-webengine: fix build with libc++ 17

    Building www/qt5-webengine with libc++ 17 results in the following
    compile errors:

      In file included from
../../../../kde-qtwebengine-5.15.15p0/src/3rdparty/chromium/third_party/perfetto/src/trace_processor/trace_sorter.cc:17:
      In file included from /usr/include/c++/v1/algorithm:1803:
      In file included from /usr/include/c++/v1/__algorithm/nth_element.h:15:
      /usr/include/c++/v1/__algorithm/sort.h:577:14: error: no viable
overloaded '='
        577 |     *__begin = _Ops::__iter_move(__pivot_pos);
            |     ~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      /usr/include/c++/v1/__algorithm/sort.h:802:20: note: in instantiation of
function template specialization
'std::__bitset_partition<std::_ClassicAlgPolicy,
perfetto::base::CircularQueue<perfetto::trace_processor::TimestampedTracePiece>::Iterator,
std::__less<void, void> &>' requested here
        802 |             ? std::__bitset_partition<_AlgPolicy,
_RandomAccessIterator, _Compare>(__first, __last, __comp)
            |                    ^
      /usr/include/c++/v1/__algorithm/sort.h:878:8: note: in instantiation of
function template specialization 'std::__introsort<std::_ClassicAlgPolicy,
std::__less<void, void> &,
perfetto::base::CircularQueue<perfetto::trace_processor::TimestampedTracePiece>::Iterator,
false>' requested here
        878 |   std::__introsort<_AlgPolicy,
            |        ^
      /usr/include/c++/v1/__algorithm/sort.h:946:10: note: in instantiation of
function template specialization 'std::__sort_dispatch<std::_ClassicAlgPolicy,
perfetto::base::CircularQueue<perfetto::trace_processor::TimestampedTracePiece>::Iterator,
std::__less<void, void>>' requested here
        946 |     std::__sort_dispatch<_AlgPolicy>(std::__unwrap_iter(__first),
std::__unwrap_iter(__last), __comp);
            |          ^
      /usr/include/c++/v1/__algorithm/sort.h:954:8: note: in instantiation of
function template specialization 'std::__sort_impl<std::_ClassicAlgPolicy,
perfetto::base::CircularQueue<perfetto::trace_processor::TimestampedTracePiece>::Iterator,
std::__less<void, void>>' requested here
        954 |   std::__sort_impl<_ClassicAlgPolicy>(std::move(__first),
std::move(__last), __comp);
            |        ^
      /usr/include/c++/v1/__algorithm/sort.h:960:8: note: in instantiation of
function template specialization
'std::sort<perfetto::base::CircularQueue<perfetto::trace_processor::TimestampedTracePiece>::Iterator,
std::__less<void, void>>' requested here
        960 |   std::sort(__first, __last, __less<>());
            |        ^
     
../../../../kde-qtwebengine-5.15.15p0/src/3rdparty/chromium/third_party/perfetto/src/trace_processor/trace_sorter.cc:51:8:
note: in instantiation of function template specialization
'std::sort<perfetto::base::CircularQueue<perfetto::trace_processor::TimestampedTracePiece>::Iterator>'
requested here
         51 |   std::sort(sort_begin, events_.end());
            |        ^
     
../../../../kde-qtwebengine-5.15.15p0/src/3rdparty/chromium/third_party/perfetto/src/trace_processor/timestamped_trace_piece.h:191:26:
note: candidate function not viable: 'this' argument has type 'const
perfetto::trace_processor::TimestampedTracePiece', but method is not marked
const
        191 |   TimestampedTracePiece& operator=(TimestampedTracePiece&& ttp) {
            |                          ^
     
../../../../kde-qtwebengine-5.15.15p0/src/3rdparty/chromium/third_party/perfetto/src/trace_processor/timestamped_trace_piece.h:202:26:
note: candidate function not viable: 'this' argument has type 'const
perfetto::trace_processor::TimestampedTracePiece', but method is not marked
const
        202 |   TimestampedTracePiece& operator=(const TimestampedTracePiece&)
= delete;
            |                          ^

    This is because perfetto's CircularQueue template is only half
    const-correct. Upstream fixed this in:

   
https://github.com/google/perfetto/commit/b82a213bcf71dd8e68b53941375936c7905c0ff2

    so apply that fix to qt5-webengine's older copy of perfetto.

    PR:             274740, 273753
    MFH:            2023Q4

 ...clude_perfetto_ext_base_circular__queue.h (new) | 35 ++++++++++++++++++++++
 1 file changed, 35 insertions(+)

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