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authorMarc Weber <marco-oweber@gmx.de>2007-09-02T10·36+0000
committerMarc Weber <marco-oweber@gmx.de>2007-09-02T10·36+0000
commit7b20c0ed4b3ef518c1f55bfbb2ece932539f35ea (patch)
tree258ae1badbade2ead18a75f3719929d52588f768
parent0d65fc08e2f7e69976ab91271024a87dbeef380d (diff)
explanation what happens when passing true / false and null values to derivation builders added
-rw-r--r--doc/manual/writing-nix-expressions.xml4
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/manual/writing-nix-expressions.xml b/doc/manual/writing-nix-expressions.xml
index 9770e91822b5..01194d4c6a54 100644
--- a/doc/manual/writing-nix-expressions.xml
+++ b/doc/manual/writing-nix-expressions.xml
@@ -1217,6 +1217,10 @@ set, the attributes of which specify the inputs of the build.</para>
       They are simply concatenated, separated by
       spaces.</para></listitem>
 
+      <listitem><para><emphasis>true</emphasis> is passed as 
+      <emphasis>1</emphasis>, <emphasis>false</emphasis>
+      and <emphasis>null</emphasis> are passed as empty string.
+      </para></listitem>
     </itemizedlist>
 
   </para></listitem>