1 2user_apps_sub_dirs=shell about test_signal 3 4ECHO: 5 @echo "$@" 6 7$(user_apps_sub_dirs): ECHO 8 9 $(MAKE) -C $@ all CFLAGS="$(CFLAGS)" tmp_output_dir="$(tmp_output_dir)" output_dir="$(output_dir)" sys_libs_dir="$(sys_libs_dir)" 10 11all: $(user_apps_sub_dirs) 12 13.PHONY: clean 14fmt: 15 @echo "格式化代码: user/apps" 16