llvm-mingw/cmake/aarch64-w64-mingw32.cmake

set(CMAKE_SYSTEM_NAME Windows)
set(CMAKE_SYSTEM_PROCESSOR aarch64)

# Define the target triple for llvm-mingw
set(TARGET_TRIPLE aarch64-w64-mingw32)

# Specify the cross-compilers inside the Docker container
set(CMAKE_C_COMPILER ${TARGET_TRIPLE}-clang)
set(CMAKE_CXX_COMPILER ${TARGET_TRIPLE}-clang++)
set(CMAKE_RC_COMPILER ${TARGET_TRIPLE}-windres)

# Force CMake to look for dependencies only within the cross-compiler paths
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)