因为除非符号被替换否则应用程序无法正确工作，这要求必须建立构建流程来实现它，同时这个流程还要是快速的，当然是在开发环境。
Since the application doesn't work until the tokens have been replaced, build processes have to be set up to carry this out, and quickly, certainly in development environments.
s选项强制创建这些符号链接(否则就创建硬链接)。
The -s option forces symbolic links to be created (otherwise, hard links are created).
否则，公共类型是对应该有符号类型的无符号类型。
Otherwise, the common type is the unsigned type corresponding to the signed type.
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