[Various documentation improvements suggested by Bulat Ziganshin
Ian Lynagh <igloo@earth.li>**20060925231855] {
hunk ./docs/users_guide/6.6-notes.xml 20
-          GHC's modules are now also bundled into a
-          <literal>ghc</literal> package, allowing programs to make use
-          of GHC as a library. The interface has not yet been properly
-          designed, so is subject to change.
-        </para>
-      </listitem>
-      <listitem>
-        <para>
hunk ./docs/users_guide/6.6-notes.xml 292
-          It is now possible, with the <literal>-I</literal> RTS flag,
-          to control the amount of idle time that happens before a major
-          GC is performed. There is more detail in
-          <xref linkend="rts-options-gc" />.
+          If the program is idle for a certain amount of time then GHC
+          will now take the opportunity to do a major garbage collection.
+          The amount of idle time that is required before that happens
+          is controlled by the new <literal>-I</literal> RTS flag.
+          There is more detail in <xref linkend="rts-options-gc" />.
+        </para>
+      </listitem>
+      <listitem>
+        <para>
+          It is now possible to control the frequency that the RTS clock
+          ticks at with the new <literal>-V</literal> RTS flag. This is
+          normally handled automatically by other flags, but this flag
+          is needed if you want to increase the resolution of the time
+          profiler.
+          For more details see <xref linkend="rts-options-misc" />.
hunk ./docs/users_guide/6.6-notes.xml 317
-          The <option>-split-objs</option> flag, which makes libraries
-          smaller, can now be used with <option>--make</option> and hence
+          The <option>-split-objs</option> flag, which when used to compile
+          libraries means executables using the library will be smaller,
+          can now be used with <option>--make</option> and hence
hunk ./docs/users_guide/6.6-notes.xml 493
+            For more details, see <xref linkend="special-ids" />.
hunk ./docs/users_guide/6.6-notes.xml 501
+            For more details, see <xref linkend="special-ids" />.
hunk ./docs/users_guide/6.6-notes.xml 1620
+
+  <sect2>
+    <title>GHC As A Library</title>
+      <para>
+        Version number 6.6.
+      </para>
+      <para>
+        The internal modules of GHC are now available as a library, package
+        name <literal>ghc</literal>.
+        The interface has not been designed with use by other programs
+        in mind, so expect the API to vary radically in future
+        releases.
+      </para>
+      <para>
+        An introduction to using the library can be found
+        <ulink url="http://haskell.org/haskellwiki/GHC/As_a_library">on the wiki</ulink>.
+      </para>
+  </sect2>
hunk ./docs/users_guide/glasgow_exts.xml 3781
-<title>Generalised Algebraic Data Types</title>
+<title>Generalised Algebraic Data Types (GADTs)</title>
hunk ./docs/users_guide/glasgow_exts.xml 3783
-<para>Generalised Algebraic Data Types (GADTs) generalise ordinary algebraic data types by allowing you
+<para>Generalised Algebraic Data Types generalise ordinary algebraic data types by allowing you
hunk ./docs/users_guide/glasgow_exts.xml 3804
-These and many other examples are given in papers by Hongwei Xi, and Tim Sheard.
+These and many other examples are given in papers by Hongwei Xi, and
+Tim Sheard. There is a longer introduction
+<ulink url="http://haskell.org/haskellwiki/GADT">on the wiki</ulink>,
+and Ralf Hinze's
+<ulink url="http://www.informatik.uni-bonn.de/~ralf/publications/With.pdf">Fun with phantom types</ulink> also has a number of examples. Note that papers
+may use different notation to that implemented in GHC.
hunk ./docs/users_guide/phases.xml 728
-          We use this feature for building GHC's libraries libraries
+          This only makes sense for libraries, where it means that
+          executables linked against the library are smaller as they only
+          link against the object files that they need. However, assembling
+          all the sections separately is expensive, so this is slower than
+          compiling normally.
+          We use this feature for building GHC's libraries
}