Translations:Emerge/84/en

Warning
Passing environment variables to Portage on the command line will only result in temporary changes to system configuration, and all such changes will be reverted by routine maintenance, such as a system update. Though this section can be useful for previewing the effects of configuration changes, with the --pretend option, it should not be used when actually installing or updating packages.

The correct way to make Portage configuration changes is through the Portage configuration files such as /etc/portage/make.conf, /etc/portage/package.accept_keywords, /etc/portage/package.use, etc.