set_ifndef(GCCARMEMB_TOOLCHAIN_PATH $ENV{GCCARMEMB_TOOLCHAIN_PATH})
set(       GCCARMEMB_TOOLCHAIN_PATH ${GCCARMEMB_TOOLCHAIN_PATH} CACHE PATH "gccarmemb install directory")
assert(    GCCARMEMB_TOOLCHAIN_PATH "GCCARMEMB_TOOLCHAIN_PATH is not set")

if(NOT EXISTS ${GCCARMEMB_TOOLCHAIN_PATH})
  message(FATAL_ERROR "Nothing found at GCCARMEMB_TOOLCHAIN_PATH: '${GCCARMEMB_TOOLCHAIN_PATH}'")
endif()

set(TOOLCHAIN_HOME ${GCCARMEMB_TOOLCHAIN_PATH})

set(COMPILER gcc)

set(CROSS_COMPILE_TARGET arm-none-eabi)
set(SYSROOT_TARGET       arm-none-eabi)

set(CROSS_COMPILE ${TOOLCHAIN_HOME}/bin/${CROSS_COMPILE_TARGET}-)
set(SYSROOT_DIR   ${TOOLCHAIN_HOME}/${SYSROOT_TARGET})