本文给出Makefile的具体实现，以及对其中的关键点进行解析。所谓C++Makefile，即可编译链接所有的C++程序，而只需作很少的修改。
　　号称Makefile，一统江湖。我对原版的Makefile做了些修改。首先揭开它的庐山真面目：
####################################################
# Generic makefile - Makefile
# for compiling and linking C++ projects on Linux
# Author: George Foot  Modified:Jackie Lee
####################################################
### Customising
#
# Adjust the following if necessary; EXECUTABLE is the target
# executable's filename， and LIBS is a list of libraries to link in
# (e.g. alleg， stdcx， iostr， etc). You can override these on make's
# command line of course， if you prefer to do it that way.
#
#
EXECUTABLE := main    # 可执行文件名
LIBDIR:=              # 静态库目录
LIBS :=               # 静态库文件名
INCLUDES:=.           # 头文件目录
SRCDIR:=              # 除了当前目录外，其他的源代码文件目录
#
# # Now alter any implicit rules' variables if you like， e.g.:
CC:=g++
CFLAGS := -g -Wall -O3
CPPFLAGS := $(CFLAGS)
CPPFLAGS += $(addprefix -I，$(INCLUDES))
CPPFLAGS += -MMD
#
# # The next bit checks to see whether rm is in your djgpp bin
# # directory; if not it uses del instead， but this can cause (harmless)
# # `File not found' error messages. If you are not using DOS at all，
# # set the variable to something which will unquestioningly remove
# # files.
#
RM-F := rm -f
# # You shouldn't need to change anything below this point.
#
SRCS := $(wildcard *.cpp) $(wildcard $(addsuffix /*.cpp， $(SRCDIR)))
OBJS := $(patsubst %.cpp，%.o，$(SRCS))
DEPS := $(patsubst %.o，%.d，$(OBJS))
MISSING_DEPS := $(filter-out $(wildcard $(DEPS))，$(DEPS))
MISSING_DEPS_SOURCES := $(wildcard $(patsubst %.d，%.cpp，$(MISSING_DEPS)))
.PHONY : all deps objs clean veryclean rebuild info
all: $(EXECUTABLE)
deps : $(DEPS)
objs : $(OBJS)
clean :
@$(RM-F) *.o
@$(RM-F) *.d
veryclean: clean
@$(RM-F) $(EXECUTABLE)
rebuild: veryclean all
ifneq ($(MISSING_DEPS)，)
$(MISSING_DEPS) :
@$(RM-F) $(patsubst %.d，%.o，$@)
endif
-include $(DEPS)
$(EXECUTABLE) : $(OBJS)
$(CC) -o $(EXECUTABLE) $(OBJS) $(addprefix -L，$(LIBDIR)) $(addprefix -l，$(LIBS))
info:
@echo $(SRCS)
@echo $(OBJS)
@echo $(DEPS)
@echo $(MISSING_DEPS)
@echo $(MISSING_DEPS_SOURCES)
　　注：1)命令行前的空白符必须为一个制表符(Tab)；如，@$(RM-F) *.o前不是空格，而是一个制表符；