Unix “能做什么？”；“假设新的”；全球地？

默认情况下，Make将“触摸”提供的目标文件以“使其更新”。 要避免这种情况，您可以使用：

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Makefile本身是否有一个等价的设置（可能是一个

MAKEFLAGS

选项）来全局地为Makefile中定义的所有目标假定此选项？

我认为这是可行的：

MAKEFLAGS=--假定新=$（MAKECMDGOALS）

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这样做是否有任何负面影响？

注意

MAKECMDGOALS

仅包含命令行上提供的目标；您特别要求在Makefile中定义所有目标。如果你备份一点，描述一下你真正想要完成的是什么，那么回答你的问题就简单多了。

   -W file, --what-if=file, --new-file=file, --assume-new=file
        Pretend that the target file has just been  modified.   When  used
        with  the -n flag, this shows you what would happen if you were to
        modify that file.  Without -n, it is almost the same as running  a
        touch  command  on the given file before running make, except that
        the modification time is changed only in the imagination of  make.