%: FORCE-ALWAYS-RUN
\@:
Makefile FORCE-ALWAYS-RUN:
- \$(MAKE) -C $cd -f main.mk \$(addprefix ${dir_prefix},\$(MAKECMDGOALS))
+ \$(MAKE) -C $cd -f main.mk \$(addprefix ${dir_prefix},\$(or \$(MAKECMDGOALS),all))
.SUFFIXES:
+.PHONY: FORCE-ALWAYS-RUN
END
}