David Craven <da...@craven.ch> skribis: >> --8<---------------cut here---------------start------------->8--- >> $ qemu-arm $(guix build coreutils -s armhf-linux |grep -v debug)/bin/uname -a >> Linux pluto 4.7.0-gnu #1 SMP 1 armv7l GNU/Linux >> $ uname -a >> Linux pluto 4.7.0-gnu #1 SMP 1 x86_64 GNU/Linux >> --8<---------------cut here---------------end--------------->8--- > > If I understand correctly this only works when there is a substitute > already. If it's a new package for example that would fail with "not > an armhf system" right?
The “build hook” is the mechanism by which the daemon asks an external program whether it can build a derivation for some system. Our (guix scripts offload) is such a program; it replies positively if there’s a machine that matches the target system. What I was suggesting is to have another build hook that would reply positively as long as the target system can be emulated by QEMU. Does that makes sense? Thanks, Ludo’.
