We get this error when configuring on aarch64 machine: -- Performing Test CXX_COMPILER_SUPPORTS_-fcolor-diagnostics - Failed -- Performing Test CXX_COMPILER_SUPPORTS_-fdiagnostics-color=always -- Performing Test CXX_COMPILER_SUPPORTS_-fdiagnostics-color=always - Success CMake Error at Source/cmake/OptionsCommon.cmake:42 (WEBKIT_PREPEND_GLOBAL_COMPILER_FLAG): Unknown CMake command "WEBKIT_PREPEND_GLOBAL_COMPILER_FLAG". Call Stack (most recent call first): Source/cmake/WebKitCommon.cmake:58 (include) CMakeLists.txt:166 (include)
Oops, this is my fault.
Committed r229155: <https://trac.webkit.org/changeset/229155>