BTW, if you compile the Arduino version of avrdude, you shouldn't need to actually build the Arduino distribution - just replace the RXTX with a 64 bit version. (Most of the code is Java, so it should run fine on 64-bit systems.)
BTW, if you compile the Arduino version of avrdude, you shouldn't need to actually build the Arduino distribution - just replace the RXTX with a 64 bit version. (Most of the code is Java, so it should run fine on 64-bit systems.)