diff options
| -rw-r--r-- | src/libstore/build.cc | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/libstore/build.cc b/src/libstore/build.cc index 46d2841dc..e7696e44e 100644 --- a/src/libstore/build.cc +++ b/src/libstore/build.cc @@ -543,6 +543,7 @@ void UserLock::acquire() throw Error(format("the Nix user should not be a member of ‘%1%’") % settings.buildUsersGroup); +#if __linux__ /* Get the list of supplementary groups of this build user. This is usually either empty or contains a group such as "kvm". */ supplementaryGIDs.resize(10); @@ -553,6 +554,7 @@ void UserLock::acquire() throw Error(format("failed to get list of supplementary groups for ‘%1%’") % pw->pw_name); supplementaryGIDs.resize(ngroups); +#endif return; } @@ -2372,7 +2374,8 @@ void DerivationGoal::runChild() if (buildUser.enabled()) { /* Preserve supplementary groups of the build user, to allow admins to specify groups such as "kvm". */ - if (setgroups(buildUser.getSupplementaryGIDs().size(), + if (!buildUser.getSupplementaryGIDs().empty() && + setgroups(buildUser.getSupplementaryGIDs().size(), buildUser.getSupplementaryGIDs().data()) == -1) throw SysError("cannot set supplementary groups of build user"); |