400 or 402

fender010

emerge --depclean

emerge --depclean

* Depclean may break link level dependencies.  Thus, it is
* recommended to use a tool such as `revdep-rebuild` (from
* app-portage/gentoolkit) in order to detect such breakage.
*
* Always study the list of packages to be cleaned for any obvious
* mistakes. Packages that are part of the world set will always
* be kept.  They can be manually added to this set with
* `emerge --noreplace <atom>`.  Packages that are listed in
* package.provided (see portage(5)) will be removed by
* depclean, even if they are part of the world set.
*
* As a safety measure, depclean will not remove any packages
* unless *all* required dependencies have been resolved.  As a
* consequence, it is often necessary to run `emerge --update
* --newuse --deep world` prior to depclean.

Calculating dependencies... done!
>>> No packages selected for removal by depclean
>>> To see reverse dependencies, use --verbose
Packages installed:   402
Packages in world:    38
Packages in system:   50
Required packages:    402
Number removed:       0

* IMPORTANT: 1 news items need reading for repository 'gentoo'.
* Use eselect news to read news items.

eix -I

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省略很多输出
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Found 400 matches.

到底是400个还是402个呢？为什么两个工具统计出来的不一样呢？

亞利艾爾

有些包是一个包不同的版本吧。应该是这个原因。就是有SLOT的情况。

fender010

的确是，有两个包是装了2个版本的。