+
+ <listitem>
+ <para>GHC does not keep careful track of
+ what instance declarations are 'in scope' if they come from other packages.
+ Instead, all instance declarations that GHC has seen in other
+ packages are all in scope everywhere, whether or not the
+ module from that package is used by the command-line
+ expression. This bug affects only the <option>--make</option> mode and
+ GHCi.</para>
+ </listitem>
+