PR # 10328 is bringing support for STM32 MCUs that have two different kinds
of cores on chip: Cortex M7 and Cortex M4. In other words, AMP-style
(Asymmetric Multi Processing) chip. This requires building NuttX twice,
once for each core, with two different configs.
In the GitHub comments, it was me
Out-of-tree build is the default for me in various projects. I like to
have git submodules / dependencies untouched.
FreeBSD uses (BSD) make and allows out of tree builds and it is
possible to specify WRKDIRPREFIX for instance in tmpfs located in RAM.
Kernel build also allows passing another varia
