maggesi at math.unifi.it wrote: > Quoting "Yury G. Kudryashov" <urkud+nix at ya.ru>: > >>> Perhaps nix on macbook has switched to 64bit recently? >> # file -L `which nix-env` > > nix-env: Mach-O 64-bit executable x86_64 So, the answer is "yes". Why? I don't know ;) P.S.: Reply to list, not to all, please.