Functions starting with `c' in src/od-macos

• CheckForSetup src/od-macos/mac.c:1092
• check_sound_buffers src/od-macos/sound.h:39
• close_joystick src/od-macos/joystick.c:30
• close_sound src/od-macos/sound.c:32
• CreatePrefs src/od-macos/mac.c:1577