Merge "Walk up tree to find makefiles in mma" am: 5ccafd0f am: 8ff4ea8a

      echo "Couldn't locate the top of the tree.  Try setting TOP."

      return 1

    fi

    local MY_PWD=`PWD= /bin/pwd|sed 's:'$T'/::'`

    local MODULES_IN_PATHS=MODULES-IN-$MY_PWD

    local M=$(findmakefile)

    # Remove the path to top as the makefilepath needs to be relative

    local M=`echo $M|sed 's:'$T'/::'`

    local MODULES_IN_PATHS=MODULES-IN-$(dirname ${M})

    # Convert "/" to "-".

    MODULES_IN_PATHS=${MODULES_IN_PATHS//\//-}

    $DRV make -C $T -f build/core/main.mk $@ $MODULES_IN_PATHS