cmake CMAKE_<LANG>_COMPILER_TARGET examples

InsightSoftwareConsortium/ITK Modules/ThirdParty/ZLIB/src/itkzlib-ng/cmake/toolchain-aarch64.cmake :21 

find_program(CXX_COMPILER_FULL_PATH NAMES g++-${CMAKE_CXX_COMPILER_TARGET} ${CMAKE_CXX_COMPILER_TARGET}-g++)

mozilla-mobile/mozilla-vpn-client extension/CMakeLists.txt :43 

add_custom_target(cargo_mozillavpnnp ALL
        COMMENT "Building web extension crate"
        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/bridge
        COMMAND
            ${CMAKE_COMMAND} -E env CARGO_HOME=${CMAKE_BINARY_DIR}/cargo_home
            ${CARGO_BUILD_TOOL} build --release --target-dir ${CMAKE_CURRENT_BINARY_DIR}/bridge --target ${CMAKE_C_COMPILER_TARGET}
        COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_CURRENT_BINARY_DIR}/bridge/target
        COMMAND ${CMAKE_COMMAND} -E create_symlink ${CMAKE_CURRENT_BINARY_DIR}/bridge/${CMAKE_C_COMPILER_TARGET}/release ${CMAKE_CURRENT_BINARY_DIR}/bridge/target/release
    )

ClickHouse/ClickHouse cmake/linux/default_libs.cmake :7 

execute_process (COMMAND
    ${CMAKE_CXX_COMPILER} --target=${CMAKE_CXX_COMPILER_TARGET} --print-libgcc-file-name --rtlib=compiler-rt
    OUTPUT_VARIABLE BUILTINS_LIBRARY
    COMMAND_ERROR_IS_FATAL ANY
    OUTPUT_STRIP_TRAILING_WHITESPACE)

OriginHubAI/MyScaleDB cmake/darwin/toolchain-x86_64.cmake :7 

set (CMAKE_CXX_COMPILER_TARGET "x86_64-apple-darwin")

MBU-Team/OpenMBU engine/lib/curl/CMakeLists.txt :91 

if(CMAKE_C_COMPILER_TARGET)

ARM-software/SCP-firmware product/neoverse-rd/rdn1e1/mcp_ramfw/Toolchain-ArmClang.cmake :16 

set(CMAKE_CXX_COMPILER_TARGET "arm-arm-none-eabi")