可变参数列表到Makefile [英] Variable arguments list to a Makefile

问题描述

我想做些类似的事情.我想要一个Makefile的变量参数列表.

I would like do something like following. I would like to have a variable argument list for a Makefile.

make VAR_ARG_LIST=src1,src2,src3,src4

我可以这样吗?如果可以，如何从Makefile中的变量VAR_ARG_LIST中提取src1，src2或src3?

Can I do like this? If I can, how do I extract src1,src2 or src3 from the variable VAR_ARG_LIST inside the Makefile?

谢谢

推荐答案

您确实没有为解决方案提供足够的信息.为什么要提取这些值?您想和他们做什么?

You really haven't provided enough information for a solution. Why do you want to extract those values? What do you want to do with them?

但是，我可以回答您提出的问题，并希望它会有用.如果您使用的是GNU make，则可以执行以下操作:

However, I can answer the question you asked and hope it is useful. If you're using GNU make you can do this:

COMMA := ,
VAR_ARG_LIST_A := $(subst $(COMMA), ,$(VAR_ARG_LIST))
VAR_ARG_LIST_1 := $(word 1,$(VAR_ARG_LIST_A))
VAR_ARG_LIST_2 := $(word 2,$(VAR_ARG_LIST_A))

等

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