In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/../Runtime/PlatformAgnostic/ChakraICU.h:36:
In file included from /opt/homebrew/opt/icu4c/include/unicode/ucal.h:13:
In file included from /opt/homebrew/opt/icu4c/include/unicode/utypes.h:39:
/opt/homebrew/opt/icu4c/include/unicode/uversion.h:182:11: warning: nested namespace definition is a C++17 extension; define each namespace separately [-Wc++17-extensions]
  182 | namespace U_HEADER_ONLY_NAMESPACE {}
      |           ^
/opt/homebrew/opt/icu4c/include/unicode/uversion.h:180:48: note: expanded from macro 'U_HEADER_ONLY_NAMESPACE'
  180 | #define U_HEADER_ONLY_NAMESPACE U_ICU_NAMESPACE::U_HEADER_NESTED_NAMESPACE
      |                                                ^
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/CharSet.cpp:5:
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/ParserPch.h:22:
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/../Runtime/Runtime.h:334:
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/../Runtime/PlatformAgnostic/ChakraPlatform.h:7:
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/../Runtime/PlatformAgnostic/UnicodeText.h:8:
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/../Runtime/PlatformAgnostic/ChakraICU.h:38:
In file included from /opt/homebrew/opt/icu4c/include/unicode/ucol.h:17:
In file included from /opt/homebrew/opt/icu4c/include/unicode/unorm.h:25:
In file included from /opt/homebrew/opt/icu4c/include/unicode/unorm2.h:35:
In file included from /opt/homebrew/opt/icu4c/include/unicode/uset.h:38:
/opt/homebrew/opt/icu4c/include/unicode/char16ptr.h:271:55: error: no template named 'is_same_v' in namespace 'std'; did you mean 'is_same'?
  271 | template<typename T, typename = std::enable_if_t<std::is_same_v<T, UChar>>>
      |                                                  ~~~~~^~~~~~~~~
      |                                                       is_same
/Applications/Xcode_26.0.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/__type_traits/is_same.h:22:56: note: 'is_same' declared here
   22 | struct _LIBCPP_TEMPLATE_VIS _LIBCPP_NO_SPECIALIZATIONS is_same : _BoolConstant<__is_same(_Tp, _Up)> {};
      |                                                        ^
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/CharSet.cpp:5:
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/ParserPch.h:22:
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/../Runtime/Runtime.h:334:
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/../Runtime/PlatformAgnostic/ChakraPlatform.h:7:
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/../Runtime/PlatformAgnostic/UnicodeText.h:8:
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/../Runtime/PlatformAgnostic/ChakraICU.h:38:
In file included from /opt/homebrew/opt/icu4c/include/unicode/ucol.h:17:
In file included from /opt/homebrew/opt/icu4c/include/unicode/unorm.h:25:
In file included from /opt/homebrew/opt/icu4c/include/unicode/unorm2.h:35:
In file included from /opt/homebrew/opt/icu4c/include/unicode/uset.h:38:
/opt/homebrew/opt/icu4c/include/unicode/char16ptr.h:271:50: error: template argument for non-type template parameter must be an expression
  271 | template<typename T, typename = std::enable_if_t<std::is_same_v<T, UChar>>>
      |                                                  ^~~~~~~~~~~~~~~~~~~~~~~~
/Applications/Xcode_26.0.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/__type_traits/enable_if.h:37:16: note: template parameter is declared here
   37 | template <bool _Bp, class _Tp = void>
      |                ^
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/CharSet.cpp:5:
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/ParserPch.h:22:
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/../Runtime/Runtime.h:334:
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/../Runtime/PlatformAgnostic/ChakraPlatform.h:7:
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/../Runtime/PlatformAgnostic/UnicodeText.h:8:
In file included from /private/var/folders/g9/7rkt8rt1241bwwhd3_s8ndp40000gn/T/cirrus-ci-build/lib/Parser/../Runtime/PlatformAgnostic/ChakraICU.h:38:
/opt/homebrew/opt/icu4c/include/unicode/ucol.h:1531:11: warning: nested namespace definition is a C++17 extension; define each namespace separately [-Wc++17-extensions]
 1531 | namespace U_HEADER_ONLY_NAMESPACE {
      |           ^
/opt/homebrew/opt/icu4c/include/unicode/uversion.h:180:48: note: expanded from macro 'U_HEADER_ONLY_NAMESPACE'
  180 | #define U_HEADER_ONLY_NAMESPACE U_ICU_NAMESPACE::U_HEADER_NESTED_NAMESPACE
      |                                                ^
2 warnings and 2 errors generated.
ninja: build stopped: subcommand failed.