message: point to our cross C++ compiler
diff: @@ -8,8 +8,9 @@ set(TARGET_ARCH x86_64-hermit)
  set(CMAKE_SYSTEM_NAME Generic)
  -# point CMake to our toolchain, it will auto detect C++ compiler
  +# point CMake to our toolchain
  set(CMAKE_C_COMPILER ${TOOLCHAIN_BIN_DIR}/${TARGET_ARCH}-gcc)
  +set(CMAKE_CXX_COMPILER ${TOOLCHAIN_BIN_DIR}/${TARGET_ARCH}-g++)
  set(CMAKE_Fortran_COMPILER ${TOOLCHAIN_BIN_DIR}/${TARGET_ARCH}-gfortran)
  set(CMAKE_Go_COMPILER ${TOOLCHAIN_BIN_DIR}/${TARGET_ARCH}-gccgo)
  