if [ -f "${ISO_OUTPUT}/${ISO_NAME}" -a -z "$UPDATE" -a -z "$BUILD_ONLY" -a -z "$BUILD_DIRTY" -a "$FORCE_ISO_REBUILD" = "false" ] ; then
log "$ISO_OUTPUT/${ISO_NAME} exists already, skipping stage 'iso build'"
ewarn "$ISO_OUTPUT/${ISO_NAME} exists already, skipping stage 'iso build'" ; eend 0
if [ -f "${ISO_OUTPUT}/${ISO_NAME}" -a -z "$UPDATE" -a -z "$BUILD_ONLY" -a -z "$BUILD_DIRTY" -a "$FORCE_ISO_REBUILD" = "false" ] ; then
log "$ISO_OUTPUT/${ISO_NAME} exists already, skipping stage 'iso build'"
ewarn "$ISO_OUTPUT/${ISO_NAME} exists already, skipping stage 'iso build'" ; eend 0