[yocto] [Pyro] Multiple toolchains

[GISLARD Philippe (MORPHO)]

Hello,

We are updating our BSP from Krogoth to Pyro.
We are using a kernel designed and patched specifically for our hardware (3.10.40) that does not compile with GCC 5.x or GCC6.x.
AFAIK, Pyro is qualified with GCC 5.x and GCC6.x (not with earlier versions).

What is the easiest way to use two toolchains?
- GCC 4.9 for the kernel.
- GCC 6.3 for the other packages.

Thank you.