| global:X: | Adds support for X11 |
| global:unicode: | Adds support for Unicode |
| lcd_devices.desc:X: | Add support for X11 displaying |
| local:X:app-admin/gkrellm: | Build both the X11 gui (gkrellm) and the server (gkrellmd). Disabling this flag builds the server only. |
| local:X:app-crypt/heimdal: | Building X applications |
| local:X:media-sound/pulseaudio: | Build the X11 publish module to export PulseAudio information through X11 protocol for clients to make use. Don't enable this flag if you want to use a system wide instance. If unsure, enable this flag. |
| local:X:media-video/vlc: | Enables support for, e.g., fullscreen mode via the X Window System. By itself, this flag does not build a graphical interface. |
| local:X:net-irc/quassel: | Build the Qt 4 GUI client for quassel. If this USE flag is disabled, the GUI is not built, and cannot be used. You might want to disable this on the server, but you need it enabled on the client. |