All symbols starting with `u' in src/od-generic

• unacquire_joystick src/od-generic/joystick.c:32
• UNSUPPORTED_OPTION_b src/od-generic/sound.h:25
• UNSUPPORTED_OPTION_R src/od-generic/sound.h:24
• UNSUPPORTED_OPTION_S src/od-generic/sound.h:26