Makefile范例：单文件夹多个.c和.h编译

SRCDIR:=.
OBJDIR:=.

CC:=gcc
STRIP:=strip

CFLAGS:=-w -O2 

.PHONY: all
.DEFAULT: all

OBJDIR:=./obj
SRCS:=$(wildcard $(SRCDIR)/*.c)
OBJS:=$(addprefix $(OBJDIR)/,$(patsubst %.c,%.o,$(SRCS)))

PROGRAM:=main.elf

all: $(PROGRAM)

$(OBJS): $(OBJDIR)/%.o : %.c
	@if [ ! -d $(dir $@) ] ; then mkdir -v -p $(dir $@) ; fi
	@echo compile: $<
	$(CC) $(CFLAGS) -c $< -o $@

$(PROGRAM): $(OBJS)
	$(CC) $(OBJS) -o $(PROGRAM) -lpthread -static
	$(STRIP) $(PROGRAM)

clean:
	rm -f $(OBJDIR)/* $(PROGRAM)