The -M option instructs command-line compiler to check all units upon which the file being compiled depends.

“-M”选项指示编译器检查所有与编译文件相关联的文件。

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Instead of relying on the -m option to determine what needs to be updated, you can tell command-line compiler to update all units upon which your program depends using the -b option.

用于取代要知道哪些单元需要更新-M的选项，你可以使用- B选项来更新所有你的程序中关联的单元。

youdao

Instead of relying on the -m option to determine what needs to be updated, you can tell command-line compiler to update all units upon which your program depends using the -b option.

用于取代要知道哪些单元需要更新-M的选项，你可以使用- B选项来更新所有你的程序中关联的单元。

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