Arduino on Xcode Project — Official Thread

Running into another problem: I'm trying to build a project on the Due, and I get the following error:

---- Compile ----
1.1-CORE: .o < .c 	arduino_due_x	Builds/	WInterrupts.c
/Applications/Arduino.app/Contents/Resources/Java/hardware/tools/avr/bin/avr-gcc -c -mmcu= -DF_CPU= -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/avr/cores/Arduino -I/Applications/Arduino.app/Contents/Resources/Java/libraries/LiquidCrystal -I/Applications/Arduino.app/Contents/Resources/Java/libraries/SD -I/Applications/Arduino.app/Contents/Resources/Java/libraries/SD/utility -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/avr/libraries/EEPROM -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/avr/libraries/Ethernet -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/avr/libraries/Ethernet/utility -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/avr/libraries/SPI -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/avr/libraries/Servo -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/avr/libraries/SoftwareSerial -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/avr/libraries/Stepper -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/avr/libraries/Wire -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/avr/libraries/Wire/utility  -g -Os -w -Wall -ffunction-sections -fdata-sections -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/avr/variants/ -DARDUINO=150  /Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/avr/cores/Arduino/WInterrupts.c -o Builds/WInterrupts.o
cc1: error: missing argument to "-mmcu="
make: *** [Builds/WInterrupts.o] Error 1

This is with Arduino 1.5.1 and the latest embedxcode. I can compile and upload form Arduino, but even a brand new project in embedxcode fails to compile. Full log is attached

build.log (15.6 KB)