[C++] Failed to build vendored/datetime/tz.cpp with C++20 and libc++

[ben-freist]

Describe the enhancement requested

CMake command line:

cmake -DARROW_ENABLE_THREADING=OFF \
 -DARROW_JEMALLOC=OFF \
-DCMAKE_CXX_STANDARD=20 \
-DCXX_ONLY_FLAGS="-stdlib=libc++" \
-DCMAKE_TOOLCHAIN_FILE=toolchain.cmake  --preset ninja-debug-minimal   ../cpp/

Error log:

In file included from ~/.conan2/p/b/arrowe39f77e638649/b/src/cpp/src/arrow/vendored/datetime/tz.cpp:90:
~/.conan2/p/b/arrowe39f77e638649/b/src/cpp/src/arrow/vendored/datetime/tz_private.h:295:12: error: use of overloaded operator '<<' is ambiguous (with operand types 'std::ostream' (aka 'basic_ostream<char>') and 'const sys_seconds' (aka 'const time_point<std::chrono::system_clock, std::chrono::duration<long long, std::ratio<1, 1>>>'))
  295 |         os << t.timepoint << "Z ";
      |         ~~ ^  ~~~~~~~~~~~
/usr/lib/llvm-17/bin/../include/c++/v1/__chrono/ostream.h:46:1: note: candidate function [with _CharT = char, _Traits = std::char_traits<char>, _Duration = std::chrono::duration<long long>]
   46 | operator<<(basic_ostream<_CharT, _Traits>& __os, const sys_time<_Duration> __tp) {
      | ^
~/.conan2/p/b/arrowe39f77e638649/b/src/cpp/src/arrow/vendored/datetime/date.h:4214:1: note: candidate function [with CharT = char, Traits = std::char_traits<char>, Duration = std::chrono::duration<long long>]
 4214 | operator<<(std::basic_ostream<CharT, Traits>& os, const sys_time<Duration>& tp)

Component(s)

C++

[kou]

Issue resolved by pull request 43094
#43094