Defines in src/od-linux

• CAN_MAP_MEMORY src/od-linux/memory.h:15
• FIRST_AXLE src/od-linux/joystick.c:56
• FIRST_BUTTON src/od-linux/joystick.c:57
• JS_DEVNAME_PREFIX src/od-linux/joystick.c:33
• JS_MAXPATHLEN src/od-linux/joystick.c:23
• MAX_AXLES src/od-linux/joystick.c:55
• MAX_BUTTONS src/od-linux/joystick.c:54
• USE_MAPPED_MEMORY src/od-linux/memory.h:12