makefile-A的意思|示意

Its functionality, however, is a lot like the Makefile functionality in that complex operations on variables are hard to do.

但是，它的功能非常象Makefile功能，对变量的复杂操作是很难处理的。

Thus, environment variables are used only if a variable is not set in any makefile or on the command line. Note: parent makefile variables are sometimes, but not always, passed down.

因此，一个变量只有在没有在任何makefile或命令行中指定时，才会使用环境变量的设置注意：父进程makefile变量有时候会传递下来，但不总会这样。

Good question, so we didn't have a Makefile yet, more on that in the future.

好问题，我们还没有一个Makefile文件，更多精彩，尽在以后的课程。

You must take a close look into the makefile to figure out such situations, where parallelizing an otherwise fine script in serial mode will mess things up if it's run in parallel.

您必须严密监视 makefile 是否发生这种情况，在这种情况下，在顺序模式下良好编译的脚本会在并行模式下出现混乱。

The Makefile contains a list of source files to build, and it also includes constants that enable or disable and choose certain snippets of code in the SQLite package.

这个Makefile中包含需要编译的源文件的列表，并且它还包括启用或者禁用并选择SQLite包中的某些代码片段的常数。

Phony targets are used for organizational purposes and are a wonderful thing in writing a clear and legible makefile. For instance, one often sees rules like this.

伪目标是为了组织结构的目的而设计的，这在编写一个清晰的makefile时是种非常不错的技术。