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Disable the build user mechanism on all platforms except Linux and OS X
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@ -1716,11 +1716,17 @@ void DerivationGoal::startBuilder()
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/* If `build-users-group' is not empty, then we have to build as
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one of the members of that group. */
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if (settings.buildUsersGroup != "" && getuid() == 0) {
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#if defined(__linux__) || defined(__APPLE__)
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buildUser = std::make_unique<UserLock>();
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/* Make sure that no other processes are executing under this
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uid. */
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buildUser->kill();
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#else
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/* Don't know how to block the creation of setuid/setgid
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binaries on this platform. */
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throw Error("build users are not supported on this platform for security reasons");
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#endif
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}
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/* Create a temporary directory where the build will take
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