在Makefile'foreach'循环中添加换行符 [英] Add a newline in Makefile 'foreach' loop

问题描述

是否可以在Makefile的foreach循环中插入要执行的换行符?

Is it possible to insert a new-line to be executed within a foreach loop in a Makefile?

当前，我有以下内容:

$(foreach my_lib,$(MY_LIBS),$(call my_func,results,boxer,$(my_lib)))

现在，假设我有:

MY_LIBS = lib1 \
          lib2

上面的foreach循环的计算结果为:

The above foreach loop would evaluate to:

lib1 lib2

我希望此评估为:

lib1
lib2

是否可以在foreach循环中插入换行符来完成此操作?

Is it possible to insert a newline in the foreach loop to accomplish this?

谢谢.

推荐答案

define \n


endef

$(error Here is a message${\n}with embedded${\n}newlines.${\n}${\n}hooray!)

您可以在$(subst...)之类的东西中使用${\n}.

You can use ${\n} in things like $(subst...).

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