flaga USE

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USE flags are keywords that embody support and dependency-information for a certain concept. They are a core feature of Gentoo, and a good understanding of how to deal with them is needed for administering a Gentoo system.

Basic concepts on how to implement USE flags can be found in the Handbook.

Deklarowanie flag USE

The default set of USE flags is defined by the selected profile. Changing them can be done in /etc/portage/make.conf and/or /etc/portage/package.use. For details see the Using USE flags section of the amd64 Handbook.

USEful commands

Aby zobaczyć, jakie flagi USE są aktualnie włączone:

user $portageq envvar USE | xargs -n 1

To check if a certain USE flag is activated and which packages use it, run:

user $euse -I <use_flag>
user $quse <use_flag>
user $eix --installed-with-use <use_flag>

Replace <use_flag> with the USE flag to be checked.

Opcje komendy emerge

The emerge command has some USE flag related options like:

  • emerge --changed-use (-U)
  • emerge --complete-graph-if-new-use < y | n >
  • emerge --newuse (-N)

Szczegółowe informacje znajdują się w man 1 emerge.

Narzędzia

Some tools are available for analyzing and managing USE flags:

Zobacz również

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