在生成的先决条件中使用生成目标名称 [英] Using make target name in generated prerequisite

问题描述

我想做的所有事情...

All I am wanting to do something along the lines of...

some_file.out : ..... ver_$(basename $@).ver:
   .....

$@不会按预期扩展，而只会在规则标题中扩展.在规则的内部，ver_$(basename $@).ver的所有用法均可根据需要扩展.我将如何修改它以使其按需工作?

The $@ does not expand as expected but only in the rule header. Inside the body of the rule all uses of ver_$(basename $@).ver expand as desired. How would I modify this to make it work as desired?

推荐答案

您将省略号省略了示例中的许多重要部分以提供完整的解决方案.但是，一种选择是使用静态模式规则，像这样:

You have ellipses eliding too many important parts of your example to provide a full solution. However, one option is to use static pattern rules, like this:

some_file.out : %.out : ver_%.ver
        ...

如果这还不够，您可以使用二次扩展，但这是一个更大的锤子.

If that isn't sufficient you can use secondary expansion, but that's a bigger hammer.

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