GNU Make是否在文件名中支持'％'? [英] Does GNU Make support '%' in a filename?

问题描述

在GNU Make中是否可以依赖于文件名中包含%的文件?我有这样的东西:

In GNU Make is it possible to have a dependency on a file that includes a % in the filename? I have something like this:

foo: results(10%).dat
    gnuplot config.plt

虽然我当然可以选择其他文件名，但很高兴知道是否应该始终避免使用%或是否有一种简单的方法对其进行转义(我已经尝试过\，\\和%%没有运气.

While I can of course choose a different filename it would be nice to know if % should always be avoided or if there is a simple way to escape it (I've tried \, \\, and %% with no luck).

编辑:我的问题似乎更加微妙.由于匹配和文件名百分比的组合，它似乎不起作用:

My problems seems to be more subtle. It seems to not work because of a combination of matching and a percent filename:

all: foo.txt bar.txt

PERCENT := %

foo%txt bar%txt: results(10$(PERCENT)).dat
    touch foo$*txt bar$*txt

这会失败，但是如果文件名中没有%就可以了.

This fails but if the filename doesn't have a % it's fine.

推荐答案

您可以尝试:

PERCENT := %
foo: results(10$(PERCENT)).dat
    gnuplot config.plt

(gnuplot之前的空格实际上是制表符).

(where the spaces before gnuplot are a tab character really).

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