abc
...\abc
...\...\bin
...\...\...\abc
...\...\...\abcd
...\...\...\Makefile
...\...\common
...\...\......\a.c
...\...\......\a.o
...\...\......\Makefile
...\...\include
...\...\.......\common.h
...\...\.......\func.c
...\...\.......\test.c
...\...\main
...\...\....\main.c
...\...\....\main.o
...\...\....\Makefile
...\...\Makefile
...\...\Rules.make
...\...\tools
...\...\.....\main.c
...\...\.....\Makefile