portage

USE flags

• build - !!internal use only!! DO NOT SET THIS FLAG YOURSELF!, used for creating build images and the first half of bootstrapping [make stage1]
• cvs - Enable CVS (Concurrent Versions System) integration
• doc - Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally
• epydoc - Build html API documentation with epydoc.
• gentoo-dev - Enable features required for Gentoo ebuild development.
• git - Enable git (version control system) support
• ipc - Use inter-process communication between portage and running ebuilds.
• kernel_linux - KERNEL setting for system using the Linux kernel
• linguas_pl - Polish locale
• linguas_ru - Russian locale
• native-extensions - Compiles native "C" extensions (speedups, instead of using python backup code). Currently includes libc-locales. This should only be temporarily disabled for some bootstrapping operations. Cross-compilation is not supported.
• python_targets_pypy - Build with PyPy
• python_targets_pypy1_9 - Build with PyPy 1.9
• python_targets_pypy2_0 - Build with PyPy 2.0 (removed)
• python_targets_python2_6 - Build with Python 2.6 (removed)
• python_targets_python2_7 - Build with Python 2.7
• python_targets_python3_1 - Build with Python 3.1
• python_targets_python3_2 - Build with Python 3.2 (deprecated)
• python_targets_python3_3 - Build with Python 3.3
• python_targets_python3_4 - Build with Python 3.4
• python_targets_python3_5 - Build with Python 3.5
• python_targets_python3_6 - Build with Python 3.6
• python_targets_python3_7 - Build with Python 3.7
• rsync-verify - Enable full-tree cryptographic verification of Gentoo repository rsync checkouts using app-portage/gemato.
• selinux - !!internal use only!! Security Enhanced Linux support, this must be set by the selinux profile or breakage will occur
• subversion - Enable subversion (version control system) support
• xattr - Preserve extended attributes (filesystem-stored metadata) when installing files. Usually only required for hardened systems.

Security Advisory