fresh install does not compile?

[Bazmundi]

1. Downloaded: ArduPilot-Arduino-1.0.3 for Windows with GCC 4.8.2 to:
   D:\MEGAPIRATE\ArduPilot-Arduino-1.0.3-windows

2. Downloaded: MegaPilotNG and saved to:
   D:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4

3. On windoze 10, so copied pde.jar from distro at 2. to;
   D:\MEGAPIRATE\ArduPilot-Arduino-1.0.3-windows\lib

4. Copied libraries from distro at 2. to:
   D:\MEGAPIRATE\ArduPilot-Arduino-1.0.3-windows\libraries

5. Started IDE and selected menu item Arduino IDE: ArduPilot>Hal Board>MegaPirateNG

6. Selected menu item Arduino IDE: Tools>Board>Arduino Mega

7. Selected menu item Arduino IDE: File>Preferences, and set "Sketchbook location:" to:
   D:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4

8. Selected menu item Arduino IDE: File>Sketchbooks>Arducopter

9. Selected menu item Arduino IDE: Sketch>Verify/Compile

10. Compile churned for a while, clapped out with the following (look for bold italic text):
    Building for MegaPirateNG
    Excluding arduino core from include paths
    avr-gcc: error: unrecognized command line option '-assembler-with-cpp'

11. With verbose on, tail is (look for bold italic text):
    D:\MEGAPIRATE\ArduPilot-Arduino-1.0.3-windows\hardware\tools\avr\bin\avr-gcc -c -g -assembler-with-cpp -mmcu=atmega2560 -DF_CPU=16000000L -DARDUINO=103 -DUSB_VID=null -DUSB_PID=null -mcall-prologues -DCONFIG_HAL_BOARD=HAL_BOARD_MPNG -DEXCLUDECORE -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_Common -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_Progmem -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_Menu -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_Param -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_HAL -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_HAL_AVR -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_HAL_MPNG -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_HAL_AVR_SITL -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_HAL_SMACCM -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_HAL_PX4 -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_HAL_Empty -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\GCS_MAVLink -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_GPS -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\DataFlash -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_ADC -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_ADC_AnalogSource -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_Baro -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_Compass -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_Math -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_Curve -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_InertialSensor -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_AHRS -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\APM_PI -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AC_PID -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\RC_Channel -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_Motors -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_RangeFinder -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_OpticalFlow -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\Filter -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_Buffer -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_Relay -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_Camera -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_Mount -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_Airspeed -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_InertialNav -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AC_WPNav -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_Declination -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AC_Fence -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\memcheck -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\SITL -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_Scheduler -ID:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_HAL_AVR\utility D:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\libraries\AP_HAL_AVR\utility\ftoa_engine.S -oC:\Users\rr\AppData\Local\Temp\build8569147893428641893.tmp\AP_HAL_AVR\utility\ftoa_engine.S.o
    avr-gcc: error: unrecognized command line option '-assembler-with-cpp'

12. The quirk is, on a search of directories with jEdit, "assembler-with-cpp" comes up as:
    D:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\mk\board_avr.mk
    ASOPTS = -x assembler-with-cpp
    D:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\mk\board_avr_sitl.mk
    ASOPTS = -x assembler-with-cpp

So, it seems the correct call is in the *.mk file but the IDE seems to make a deprecated call to "-assembler-with-cpp" instead of "-x assembler-with-cpp" some-old-how.

There in fact seems to be a disconnect because the failed call doesn't appear to line up with the mk files in the distro (under D:\MEGAPIRATE\ardupilot-mpng-mpng-3.0.1-r4\mk), is that true?

In any event, someone with a knowledge of this convoluted build environment please?

Cheers
A