Multipage Creator build failing on macOS 15.5 + Xcode 16.4

[aaronventure]

 Processing Info-App.plist
▸ Compiling include_hi_dsp_library_02.cpp

❌  clang: error: unsupported option '-mpopcnt' for target 'arm64-apple-macos10.11'


▸ Compiling include_hi_dsp_library_01.cpp

❌  clang: error: unsupported option '-mpopcnt' for target 'arm64-apple-macos10.11'


▸ Compiling MainComponent.cpp

❌  clang: error: unsupported option '-mpopcnt' for target 'arm64-apple-macos10.11'


▸ Compiling Main.cpp

❌  clang: error: unsupported option '-mpopcnt' for target 'arm64-apple-macos10.11'


▸ Compiling Exporter.cpp

❌  clang: error: unsupported option '-mpopcnt' for target 'arm64-apple-macos10.11'


▸ Compiling include_hi_lac.cpp

❌  clang: error: unsupported option '-mpopcnt' for target 'arm64-apple-macos10.11'


▸ Compiling DialogLibrary.cpp

❌  clang: error: unsupported option '-mpopcnt' for target 'arm64-apple-macos10.11'


▸ Compiling BinaryData.cpp

❌  clang: error: unsupported option '-mpopcnt' for target 'arm64-apple-macos10.11'


▸ Compiling include_hi_rlottie_1.cpp

❌  clang: error: unsupported option '-mpopcnt' for target 'arm64-apple-macos10.11'


▸ Compiling include_hi_rlottie.mm

❌  clang: error: unsupported option '-mpopcnt' for target 'arm64-apple-macos10.11'


▸ Compiling include_hi_rlottie_10.cpp

❌  clang: error: unsupported option '-mpopcnt' for target 'arm64-apple-macos10.11'


▸ Compiling include_hi_rlottie_12.cpp

❌  clang: error: unsupported option '-mpopcnt' for target 'arm64-apple-macos10.11'


▸ Compiling include_hi_rlottie_13.cpp

❌  clang: error: unsupported option '-mpopcnt' for target 'arm64-apple-macos10.11'


▸ Compiling include_hi_rlottie_3.cpp

❌  clang: error: unsupported option '-mpopcnt' for target 'arm64-apple-macos10.11'


etc. etc. etc. it keeps going