Strangely, ‘texlive-texmf’ (the big one) is substitutable: --8<---------------cut here---------------start------------->8--- $ guix describe Generacio 145 May 25 2020 00:37:58 (nuna) guix 9744cc7 repository URL: https://git.savannah.gnu.org/git/guix.git branch: master commit: 9744cc7b4636fafb772c94adb8f05961b5b39f16 $ guix environment --ad-hoc texlive -- texdoc biblatex 2.6 MB will be downloaded: /gnu/store/7ji4l3szj68b0r5w10bvvdx1vy6nhz5p-subversion-1.10.6 downloading from https://ci.guix.gnu.org/nar/lzip/7ji4l3szj68b0r5w10bvvdx1vy6nhz5p-subversion-1.10.6 ... subversion-1.10.6 2.5MiB 7.2MiB/s 00:00 [##################] 100.0%
La jena derivo estos konstruata: /gnu/store/55yx02hr0dz47px1aj0j14xll3bsrmml-texlive-texmf-20190410.drv 2,845.8 MB will be downloaded: /gnu/store/nm6w84c9zj3yiylal3dk1sqzxq11sjzw-texlive-20190410-texmf.tar.xz /gnu/store/xpkl70g3bls935h1zdlq7sn2j6rccp3k-texlive-20190410 downloading from https://ci.guix.gnu.org/nar/lzip/z4xvgiliw5baf1pr4z03c7n2hw3bm5x5-texlive-texmf-20190410 ... texlive-texmf-20190410 2.61GiB --8<---------------cut here---------------end--------------->8--- The info suggests it won’t be substituted, but it’s eventually substituted. I wonder why, because the .drv has: ("allowSubstitutes","0") and the daemon has: bool substitutesAllowed(const Derivation & drv) { return get(drv.env, "allowSubstitutes", "1") == "1"; } and: if (settings.useSubstitutes && substitutesAllowed(drv)) foreach (PathSet::iterator, i, invalidOutputs) addWaitee(worker.makeSubstitutionGoal(*i, buildMode == bmRepair)); Thoughts? Ludo’.