搜索当前目录及./foo/下所有以.c结尾的文件,生成一个以空格间隔的文件名列表,并赋值给SRC.当前目录文件只有文件名,子目录下的文件名包含路径信息,比如./foor/bar.c。
###########################################################
# Generic makefile
#
# by George Foot
# email: george.foot@merton.ox.ac.uk
#
# Copyright (c)
1997 George Foot
# All rights reserved.
# 保留所有版權
#
# No warranty, no liability;
# you use
this at your own risk.
# 沒保險,不負責
# 你要用這個,你自己擔風險
#
# You are free to modify and
# distribute
this without giving
# credit to the original author.
# 你可以隨便更改和散發這個文件
# 而不需要給原作者什榮譽。
# (你好意思?)
#
######################################
### 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.
#
# 如果需要,調整下面的東西。 EXECUTABLE 是目標的可執行文件名, LIBS
# 是一個需要連接的程序包列表(例如 alleg, stdcx, iostr 等等)。當然你
# 可以在 make 的命令行覆蓋它們,你願意就沒問題。
#
EXECUTABLE := mushroom.exe
LIBS := alleg
# Now alter any
implicit rules
' variables if you like, e.g.:
#
# 現在來改變任何你想改動的隱含規則中的變量,例如
CFLAGS := -g -Wall -O3 -m486
CXXFLAGS := $(CFLAGS)
# The next bit checks to see whether rm
is in your djgpp bin
# directory;
if not it uses del instead, but
this can cause (harmless)
# `File not found
' error messages. If you are not using DOS at all,
#
set the variable to something which will unquestioningly remove
# files.
#
# 下面先檢查你的 djgpp 命令目錄下有沒有 rm 命令,如果沒有,我們使用
# del 命令來代替,但有可能給我們
'File not found' 這個錯誤信息,這沒
# 什大礙。如果你不是用 DOS ,把它設定成一個刪文件而不廢話的命令。
# (其實這一步在 UNIX 類的系統上是多余的,只是方便 DOS 用戶。 UNIX
# 用戶可以刪除這5行命令。)
ifneq ($(wildcard $(DJDIR)/bin/rm.exe),)
RM-F := rm -f
else
RM-F := del
endif
# You shouldn
't need to change anything below this point.
#
# 從這裡開始,你應該不需要改動任何東西。(我是不太相信,太NB了!)
SOURCE := $(wildcard *.c) $(wildcard *.cc)
OBJS := $(patsubst %.c,%.o,$(patsubst %.cc,%.o,$(SOURCE)))
DEPS := $(patsubst %.o,%.d,$(OBJS))
MISSING_DEPS := $(filter-
out $(wildcard $(DEPS)),$(DEPS))
MISSING_DEPS_SOURCES := $(wildcard $(patsubst %.d,%.c,$(MISSING_DEPS)) \
$(patsubst %.d,%.cc,$(MISSING_DEPS)))
CPPFLAGS += -MD
.PHONY : everything deps objs clean veryclean rebuild
everything : $(EXECUTABLE)
deps : $(DEPS)
objs : $(OBJS)
clean :
@$(RM-F) *.o
@$(RM-F) *.d
veryclean: clean
@$(RM-F) $(EXECUTABLE)
rebuild: veryclean everything
ifneq ($(MISSING_DEPS),)
$(MISSING_DEPS) :
@$(RM-F) $(patsubst %.d,%.o,$@)
endif
-include $(DEPS)
$(EXECUTABLE) : $(OBJS)
gcc -o $(EXECUTABLE) $(OBJS) $(addprefix -l,$(LIBS))
###