分享自己编写的一个比较通用的makefile

#############################################################################
# Author: jianwang16
# Date: 2017 06 18
# E-mail:  [email protected]
#############################################################################

CROSS_COMPILE ?=
TARGET   = main

#CUR_DIR  = $(shell pwd)
CUR_DIR  = .
SRCDIR   = $(CUR_DIR)/src
INCDIR 	 = $(CUR_DIR)/inc
OBJDIR   = $(CUR_DIR)/obj
LIB      = -lwiringPi
VPATH	 = src:inc

CC 		:= $(CROSS_COMPILE)gcc
CFLAGS   = -O2 -I$(INCDIR) -Wall -g -std=c99

# *.c->*.o
SOURCES  = $(foreach dir,$(SRCDIR),$(wildcard $(dir)/*.c))
#$(info SOURCES:$(SOURCES))
OBJECTS  = $(addprefix $(OBJDIR)/,$(patsubst %.c,%.o,$(notdir $(SOURCES))))
#$(info OBJECTS:$(OBJECTS))

all:$(TARGET)

$(TARGET):$(OBJECTS)
	$(info Building $(TARGET) with $(OBJECTS) and $(LIB)...)
	@$(CC) $(OBJECTS) -o $(TARGET) $(CFLAGS)  $(LIB)
	@chmod a+x $(TARGET)
	$(info Building [email protected] finished)

$(OBJDIR)/%.o:%.c $(INCLUDES) |  $(OBJDIR)
	$(info Compiling [email protected] from $<...)
	@$(CC) -c $(CFLAGS) $< -o [email protected]
	$(info Compiling [email protected] finished)
	$(info )
		
$(OBJDIR):
	@mkdir -p $(OBJDIR)

	
.PHONY:clean all	
clean:
	@$(RM) $(OBJDIR)/*.o main