下面是我在一个项目中使用的Makefile.
脚本会自动搜索当前目录下所有子目录，并依据目录下的.c 和 .cxx生成对应的.o，最后生成应用application，
代码中删除了项目相关配置,如CFLAGS,LDFLAGS,CXXFLAGS中的gcc配置
欢迎转载，烦请添加链接，谢谢！
1 SHELL=/bin/sh 2 3 CC = $(CROSS_COMPILE)gcc 4 CXX = $(CROSS_COMPILE)g++ 5 LD = $(CROSS_COMPILE)ld 6 7 CFLAGS += 8 9 LDFLAGS +=-L. 10 11 MAKE_DIR=$(PWD) 12 13 CFLAGS += $(INCLS) 14 CXXFLAGS += $(INCLS) 15 #find all the sub-directory 16 VPATH=$(foreach dir,$(shell find . -type d),$(shell echo $(dir):)) 17 #include all the sub-directory 18 INCLS=$(foreach dir,$(subst :, ,$(VPATH)),$(shell echo -I$(dir))) 19 #find all .c and produce .o 20 C_SRC_PATH = $(foreach dir,$(subst :, ,$(VPATH)),$(wildcard $(dir)/*.c)) 21 COBJS = $(subst .c,.o,$(C_SRC_PATH)) 22 #find all .cxx and produce .o 23 CPP_SRC_PATH = $(foreach dir,$(subst :, ,$(VPATH)),$(wildcard $(dir)/*.cxx)) 24 CPPOBJS = $(subst .cxx,.o,$(CPP_SRC_PATH)) 25 26 execobjs = $(COBJS) $(CPPOBJS) 27 #the scripts for compile 28 .PHONY: all 29 30 all: $(execobjs) 31 $(CXX) -o application $(execobjs) $(LDFLAGS) 32 33 $(COBJS):%.o:%.c 34 $(CC) -c $< -o $@ $(CFLAGS) 35 36 $(CPPOBJS):%.o:%.cc 37 $(CC) -c $< -o $@ $(CXXFLAGS) 38 #the scripts for clean 39 .PHONY: clean 40 41 clean: 42 rm application $(execobjs)