GCC Version 6 should be used
https://os.mbed.com/docs/v5.8/tools/index.html
I use the 2017 q2 release without problem.
gcc-arm-none-eabi-6-2017-q2
GCC Version 6 should be used
https://os.mbed.com/docs/v5.8/tools/index.html
I use the 2017 q2 release without problem.
gcc-arm-none-eabi-6-2017-q2