With avr-gcc 4.7.2 in Mint 16 I get the following results:
make -s APP=tc01 build
(...)
Compiling debug code
Linking project. Ouput is redirected to bin/tc01/DEBUG/RTuinOS_tc01.map
avr-gcc: error: unrecognized command line option ‘--fatal-warnings’
avr-gcc: error: unrecognized command line option ‘--no-undefined’
avr-gcc: error: unrecognized command line option ‘--reduce-memory-overheads’
make: *** [bin/tc01/DEBUG/RTuinOS_tc01.elf] Error 1
echo $?
2
I've searched but found none, anyone knows what is going on?
[Edit] Same problem with Ubuntu 14.04