On Tue, Feb 22, 2022 at 2:14 PM Gregory Nutt <spudan...@gmail.com> wrote:
> One option would be to define __NUTTX_ in tools/Config.mk instead of in > each individual apps/Makefile. That would provide a single point > definition coordinate all usage. Just one (possible) correction: IIRC it is capitalized as __NuttX__. All my cross platform applications look for __NuttX__ to detect that they are being built this way. The buildroot toolchain does define that, though I am *not* using the buildroot toolchain and it is somehow defined anyway. I am away from my computer at the moment so I cannot check where it is coming from, but from memory I think we added something to the NuttX build scripts some time ago (maybe about 1 or 2 years ago) to cause that to be defined with all compilers. (Or perhaps I remember wrong and I added it to our in-house boards' Make.defs.) Nathan
