flann

USE flags

• cuda - Enable support for nVidia CUDA
• doc - Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally
• examples - Install examples, usually source code
• mpi - Add MPI (Message Passing Interface) layer to the apps that support it
• octave - Add bindings for sci-mathematics/octave
• openmp - Build support for the OpenMP (support parallel computing), requires >=sys-devel/gcc-4.2 built with USE="openmp"