Sun Nov 26 16:27:55 EST 2017
1. The infrastructure is there, but it seems that most packages are
not meant to be cross-compiled.
2. Cross-compiled packages have large closures which include the build
tools. This looks like something that just hasn't been fixed yet.
3. Performing a non-nix cross-compile might still be doable. However,
compiling buildroot on nix is problematic.
In general, unless I really need it, it is probably best to stay away