duc

USE flags

• cairo - Build support for exporting to PNG and PDF with x11-libs/cairo
• gui - Enable support for a graphical user interface
• leveldb - Use dev-libs/leveldb as the backend
• ncurses - Build support for the ncurses client
• sqlite - Use dev-db/sqlite:3 as the backend
• tokyocabinet - Use dev-db/tokyocabinet as the backend
• X - Use X11 for the GUI instead of OpenGL. This is the recommended option