Hi Thiago, Thiago Jung Bauermann skribis: > Using Guix from both the ‘master’ branch¹ and from the ‘core-updates-frozen’ > branch², the following command fails: > > $ guix build --check \ > -e '(@@ (gnu packages commencement) gcc-core-mesboot1)’ > ⋮ > guix build: erro: derivation `/gnu/store/qbnxfv7v7288iisl44kccz68k0pv9qdi-gcc-core-mesboot1-4.6.4.drv' may not be deterministic: output `/gnu/store/rn3qvn67nraicabvlrx1rhw6nsjrpgpx-gcc-core-mesboot1-4.6.4' differs > > > During the stripping phase, there are many of these warnings, which may be > related: > > starting phase `strip' > stripping binaries in "/gnu/store/rn3qvn67nraicabvlrx1rhw6nsjrpgpx-gcc-core-mesboot1-4.6.4/lib" with "strip" and flags ("--strip-debug" "--enable-deterministic-archives") > strip: unrecognized option `--enable-deterministic-archives' This was discussed in . There’s the beginning of a patch there that needs to be adapted to avoid depending on xz at this early stage, I think. Thanks, Ludo’.