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doc: Breaking change release not for dependency propagation logic

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John Ericson 2017-12-29 21:14:16 -05:00
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nixos/doc/manual/release-notes/rl-1803.xml
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@ -103,6 +103,18 @@ following incompatible changes:</para>
Other more obscure ones are just moved.
</para>
</listitem>
<listitem>
<para>
The propagation logic has been changed.
The new logic, along with new types of dependencies that go with, is thoroughly documented in the "Specifying dependencies" section of the "Standard Environment" chapter of the nixpkgs manual.
<!-- That's <xref linkend="ssec-stdenv-attributes"> were we to merge the manuals. -->
The old logic isn't but is easy to describe: dependencies were propagated as the same type of dependency no matter what.
In practice, that means that many <function>propagatedNativeBuildInputs</function> should instead be <function>propagatedBuildInputs</function>.
Thankfully, that was and is the least used type of dependency.
Also, it means that some <function>propagatedBuildInputs</function> should instead be <function>depsTargetTargetPropagated</function>.
Other types dependencies should be unaffected.
</para>
</listitem>
</itemizedlist>
</section>