David Craven <da...@craven.ch> skribis: >> If we force use of the host system type (say x86_64-linux), independent >> of (%current-system) (say mips64el-linux), we approach what you want. >> However, that would give us different derivations depending on the host >> system type. That is, ‘guix system build -s mips64el-linux -d’ on >> x86_64 would return something different from ‘guix system build -d’ on >> mips64. This is not desirable. > > Maybe an option would be if %current-system != host-system run guile > using qemu-arm?
That would make it a different derivation. >> An option would to have ‘gexp->file’ produce a fixed-output derivation >> (it can compute the hash of the output on the host side). >> >> Or maybe we need another mechanism similar to fixed-output derivations >> to define equivalence classes of derivations. > > I'll have to read up on fixed-output derivations. Can you give me an > example of where they are used currently? For downloads (origins). The manual mentions it briefly. Ludo’.
