I feel some sympathy for what you're exposed to, but I also suspect you're in a corner, or near a corner-case. Having said that, I haven't had to try and explore cross compilation for a very long time and have no dependency on it. I could well believe as a user the competing states are not helpful.

Overall I like BSD licenced code, and I like the approach to minimise dependency on GPL licenced code, but When you get down into things like binary blobs for WiFi units soldered onto mainboards, and Video drivers, things pretty quickly favour the volume of users behind GPL. I just remind myself that 2D non-accellerated graphics are probably what I need even if better 3D is what I want (the binary blobs thing really annoys me)