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。

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。

youdao

> So this time I had the foresight to install this compiler but what I'm gonna do is this.

>，这次我非常有先见之明地,安装了这个编译器，但是我这次要做的却是。

哈佛公开课 - 计算机科学课程节选

So putting back that prototype allows me to compile this, because I'm saying proactively to the compiler hey, you're going to see a function called increment.

把那个原型放回原处使我能够编译它，因为我提前向编译器打了招呼，将看到一个叫做increment的函数。

哈佛公开课 - 计算机科学课程节选

- Well -- and I'll fix this blue next time -- I'm first telling the compiler I need access to the standard io library because printf is declared there.

哦！--下次我把这个字体颜色改成蓝色的-,我先告诉编译器--我需要使用,标准输入输出库,因为printf在那个库里面申明的。

哈佛公开课 - 计算机科学课程节选