47 lines
708 B
Markdown
47 lines
708 B
Markdown
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# makefile
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makefile 是一个通用的项目代码构建器
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由规则 依赖 命令构成
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规则:依赖
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命令
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+ -n 参数可以打印出make会执行的命令，但不真正执行
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# 注意: 命令前面必须要用Tab
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# 伪目标
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.PHONY:clean
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# 自动变量
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$@ 目标文件
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$< 第一个依赖文件
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$^ 全部的依赖文件
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# 普通变量定义
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OPTION = -O3 -Wall
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# 变量使用
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g++ $(OPTION) xxx
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# 使用通配符
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%.o: %.c
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g++ $(OPTION) -c $< -o $@
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```makefile
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.PHONY:clean
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INCLUDE = -I/home/e0x2d/include
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main: file1.o file2.o
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g++ -o $@ file1.o file2.o
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file1.o: file1.cpp
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g++ -c file1.o file1.cpp
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file2.o: file2.cpp
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g++ -c file2.o file2.cpp ${INCLUDE}
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clean:
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rm *.o demo
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```
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