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Document the "out" usage in allowedReferences

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Gergely Risko 2014-08-21 23:46:28 +02:00 committed by Eelco Dolstra
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doc/manual/writing-nix-expressions.xml
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@ -1561,10 +1561,11 @@ allowedReferences = [];
</programlisting>
enforces that the output of a derivation cannot have any runtime
dependencies on its inputs. This is used in NixOS to check that
generated files such as initial ramdisks for booting Linux don’t
have accidental dependencies on other paths in the Nix
store.</para></listitem>
dependencies on its inputs. To allow an output to have a runtime
dependency on itself, use <literal>"out"</literal> as a list item.
This is used in NixOS to check that generated files such as
initial ramdisks for booting Linux don’t have accidental
dependencies on other paths in the Nix store.</para></listitem>
</varlistentry>