default: all all: posix run install: posix_install run_install clean: posix_clean run_clean posix: $(MAKE) -C posix/ posix_clean: $(MAKE) -C posix/ clean posix_install: $(MAKE) -C posix/ install run: $(MAKE) -C run/ run_clean: $(MAKE) -C run/ clean run_install: $(MAKE) -C run/ install .PHONY: default clean install \ posix posix_clean posix_install \ run run_clean run_install