if(MINGW OR CYGWIN OR WIN32) set(UTIL_SEARCH_CMD where) elseif(UNIX OR APPLE) set(UTIL_SEARCH_CMD which) endif() set(TOOLCHAIN_PREFIX arm-none-eabi-) execute_process( COMMAND ${UTIL_SEARCH_CMD} ${TOOLCHAIN_PREFIX}gcc OUTPUT_VARIABLE BINUTILS_PATH OUTPUT_STRIP_TRAILING_WHITESPACE ) get_filename_component(ARM_TOOLCHAIN_DIR ${BINUTILS_PATH} DIRECTORY) set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY) set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}gcc) set(CMAKE_ASM_COMPILER ${CMAKE_C_COMPILER}) set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}g++) set(CMAKE_OBJCOPY ${ARM_TOOLCHAIN_DIR}/${TOOLCHAIN_PREFIX}objcopy CACHE INTERNAL "objcopy tool") set(CMAKE_SIZE_UTIL ${ARM_TOOLCHAIN_DIR}/${TOOLCHAIN_PREFIX}size CACHE INTERNAL "size tool") set(CMAKE_FIND_ROOT_PATH ${BINUTILS_PATH}) set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)