Maxime Devos writes: > Could you change it to > > (filter (lambda (t) (or (x86-64-target? t) (or (x86-32-target? t)))) > %supported-systems) I found that it actually only supports Linux & Windows. There're only code stubs for other platform. I've created a patch to libcpuid, make it only link with msrdriver.c on Windows platform. See https://github.com/anrieff/libcpuid/pull/159. -- Retrieve my PGP public key: gpg --recv-keys D47A9C8B2AE3905B563D9135BE42B352A9F6821F Zihao