Update for newer avr-gcc. (solves https://github.com/arduino/Arduino/issues/1807)#1814

Merged

cmaglie merged 1 commit intoarduino:masterfrom

HeMan:master

Jan 22, 2014

Commits on Jan 21, 2014

Compile with -x assembler-with-cpp instead of -assembler-with-cpp.
Jimmy Hedman
committed