Ideally we want to use 4.8.x but the binary repository does not contain
4.8 any more, only 4.9.x. The CC3D build will continue to fail until th
code size issue is addressed.
This will allow to build an HEX file independently to the NAZE target
An ALIENWIIF3 may also come in the future based on STM32F303. Both
likely will share the same default settings. This is why I don’t use
ALIENWII32 as target name yet.
* Use the gcc-arm-none-eabi compiler. This will cause Travis-CI to
set the env variable `CC=gcc-arm-none-eabi` which would allow the
Makefile to be simplified by not hardcoding `CC`
* "Travis CI VMs run on 1.5 virtual cores"
http://docs.travis-ci.com/user/speeding-up-the-build/
Use `-j2`
* Ask GCC to print it's version. Travis-CI would do this automatically
if there was a way to install gcc before `$CC --version` is
automatically run.