从生成文件运行 bash 脚本
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running a bash script from a make file
提问by Matthew FL
I have a makefile from which I want to call another external bash script to do another part of the building. How would I best go about doing this.
我有一个 makefile，我想从中调用另一个外部 bash 脚本来完成构建的另一部分。我将如何最好地去做这件事。
回答by Carl Norum
Just like calling any other command from a makefile:
就像从 makefile 调用任何其他命令一样：
target: prerequisites
shell_script arg1 arg2 arg3
Regarding your further explanation:
关于你的进一步解释：
.PHONY: do_script
do_script:
shell_script arg1 arg2 arg3
prerequisites: do_script
target: prerequisites
回答by bignose
Each of the actions in the makefile rule is a command that will be executed in a subshell. You need to ensure that each command is independent, since each one will be run inside a separate subshell.
makefile 规则中的每个操作都是一个将在子 shell 中执行的命令。您需要确保每个命令都是独立的，因为每个命令都将在单独的子 shell 中运行。
For this reason, you will often see line breaks escaped when the author wants several commands to run in the same subshell:
因此，当作者希望在同一个子 shell 中运行多个命令时，您经常会看到换行符被转义：
targetfoo:
command_the_first foo bar baz
command_the_second wibble wobble warble
command_the_third which is rather too long \
to fit on a single line so \
intervening line breaks are escaped
command_the_fourth spam eggs beans
回答by yano
Perhaps not the "right" way to do it like the answers already provided, but I came across this question because I wanted my makefile to run a script I wrote to generate a header file that would provide the version for a whole package of software. I have quite a bit of targets in this package, and didn't want to add a brand new prerequisite to them all. Putting this towards the beginning of my makefile worked for me
也许不是像已经提供的答案那样“正确”的方法，但我遇到了这个问题，因为我希望我的 makefile 运行我编写的脚本来生成一个头文件，该头文件将为整个软件包提供版本。我在这个包中有相当多的目标，并且不想为它们添加一个全新的先决条件。把这个放在我的 makefile 的开头对我有用
$(shell ./genVer.sh)
which tells make to simply run a shell command. ./genVer.shis the path (same directory as the makefile) and name of my script to run. This runs no matter which target I specify (including clean, which is the downside, but ultimately not a huge deal to me).
它告诉 make 简单地运行一个 shell 命令。 ./genVer.sh是我要运行的脚本的路径（与 makefile 相同的目录）和名称。无论我指定哪个目标，这都会运行（包括clean，这是缺点，但最终对我来说没什么大不了的）。
