在Emacs中，此错误是什么意思? “警告:运行时需要cl软件包" [英] In Emacs, what does this error mean? "Warning: cl package required at runtime"

问题描述

我正在字节编译模块.它给了我这个警告:

I am byte-compiling a module. It gives me this warning:

 Warning: cl package required at runtime

这为什么是警告?我很清楚我正在使用cl包.实际上，模块中有一个(require 'cl)语句.

Why is this a warning? I am well aware that I am using the cl package. In fact there is a (require 'cl) statement in the module.

使用cl东西有什么问题吗?

Is there something wrong with using the cl stuff?

如果是，是否有已发布的解决方法列表?我主要使用的是mapcan和delete-duplicates.

If so, is there a list of published workarounds? The main things I use are mapcan and delete-duplicates.

推荐答案

此警告的原因是GNU策略，该策略不希望在Elisp中使用包cl.但是完全禁止它也是​​愚蠢的.因此，他们决定显示警告.

The reason of this warning is a GNU policy which does not want a package cl to be used in Elisp. But it would be foolish as well to prohibit it completely. So they decided to show a warning.

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