The lack of parallelization is also a pain point. When I needed something to test platform specific stuff and set defines/etc, I found that writing something to

The lack of parallelization is also a pain point. When I needed something to test platform specific stuff and set defines/etc, I found that writing something to generate ninja & integrate the define generation (which ended up in some generated headers) into the total build process. This was very snappy. These days I use meson mostly, but I would love to see a complete build system really get into parallelizing platform checking and merge it into the normal build process.