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doc: mention overrideDerivation causes evaluation of Derivation

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This commit is contained in:
Domen Kožar 2016-05-30 12:34:03 +01:00
parent f345d01974
commit dee13c7fd4
1 changed files with 8 additions and 1 deletions
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9
doc/functions.xml
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@ -92,7 +92,14 @@ in ...</programlisting>
<para>Do not use this function in Nixpkgs. Because it breaks
package abstraction and doesn’t provide error checking for
function arguments, it is only intended for ad-hoc customisation
(such as in <filename>~/.nixpkgs/config.nix</filename>).</para>
(such as in <filename>~/.nixpkgs/config.nix</filename>).
</para>
<para>
Additionally, <varname>overrideDerivation</varname> forces an evaluation
of the Derivation which can be quite a performance penalty if there are many
overrides used.
</para>
</warning>
<para>