tachyon

USE флаги

• doc - Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally
• examples - Install examples, usually source code
• jpeg - Add JPEG image support
• mpi - Add MPI (Message Passing Interface) layer to the apps that support it
• opengl - Add support for OpenGL (3D graphics)
• openmp - Build support for the OpenMP (support parallel computing), requires >=sys-devel/gcc-4.2 built with USE="openmp"
• png - Add support for libpng (PNG images)
• threads - Add threads support for various packages. Usually pthreads