R

USE flags

• cairo - Enable support for the cairo graphics library
• doc - Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally
• icu - Enable ICU (Internationalization Components for Unicode) support, using dev-libs/icu
• java - Add support for Java
• jpeg - Add JPEG image support
• lapack - Add support for the virtual/lapack numerical library
• lto - Use link-time optimization for R and its recommended packages.
• minimal - Install a very minimal build (disables, for example, plugins, fonts, most drivers, non-critical features)
• nls - Add Native Language Support (using gettext - GNU locale utilities)
• openmp - Build support for the OpenMP (support parallel computing), requires >=sys-devel/gcc-4.2 built with USE="openmp"
• perl - Add optional support/bindings for the Perl language
• png - Add support for libpng (PNG images)
• prefix - Defines if a Gentoo Prefix offset installation is used
• profile - Add support for software performance analysis (will likely vary from ebuild to ebuild)
• readline - Enable support for libreadline, a GNU line-editing library that almost everyone wants
• test - Enable dependencies and/or preparations necessary to run tests (usually controlled by FEATURES=test but can be toggled independently)
• tiff - Add support for the TIFF image format
• tk - Add support for Tk GUI toolkit
• X - Add support for X11

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