makefile patternrule，目标文件名中带有其他通配符 [英] makefile patternrule with further wildcards in target file name

问题描述

我需要创建一个特殊的makefile规则，最好用一个示例来说明. 也许我们用规则创建文件

I need to create a special makefile rule, which is best explained by an example. Maybe we create files with the rules

%_test.pdf: %.tex
    pdflatex -jobname=%_test %.tex

%_result.pdf: %.tex
    pdflatex -jobname=%_result %.tex

，它工作正常.只是想到这里会出现更多类似的模板，人们可能会想到这样的通配符规则

and it is working fine. Just thinking there occur more templates like those above, one might think of one wildcard-rule like

%_WILDCARD.pdf: %.tex
    pdflatex -jobname=%_$(WILDCARD) %.tex

其中WILDCARD由make决定.有可能建立这样的规则吗?

where WILDCARD is determined by make. Is it possible to build such a rule?

推荐答案

我以@eldar和@andres的答案为灵感，对自己有了解决方案

Inspired by the answers of @eldar and @andres I think, I got the solution on myself

.SECONDEXPANSION:
%.pdf: $$(firstword $$(subst _, ,%))
    pdflatex -jobname=$* $+

这正是我需要的.有关此方法的详细信息，请参见 GNU make手册.

This does exactly, what I needed. Detailed information for this way may be found at GNU make manual.

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