JChristensen/mighty-1284p — pull request #2 by pico-- (2014-05-04 03:16:58+00:00)
Title: bobuino/pins_arduino.h: removed problematic extern declarations; fixed analogInputToDigitalPin()...

... macro

"extern" declarations for arrays defined in the pins_arduino.h file were
causing link errors when those symbols needed to be resolved. The
declarations just needed deleting.

Fixed analogInputToDigitalPin() macro. It was mapping e.g. A0 -> D21 and
A7 -> D14, which was incorrect. The correct mapping is A0 -> D14 ... A7
-> D21.