Ah, cool. It's been a long time since I used it in anger, and it was not so hot then (yocto was I think the first system out of 3-4 I tried that actually gave me a functioning cross-toolchain, and gentoo's crossdev was one of those. This is like a decade ago though).
maybe longer than a decade, i've been cross-compiling on gentoo for at least 13 years without issue (that's 2012, for those playing along at home.) I say "at least" because i can't remember doing it prior to raspberry pi...
