Update release notes

[ghc-hetmet.git] / docs / users_guide / phases.xml

diff --git a/docs/users_guide/phases.xml b/docs/users_guide/phases.xml
index e5bac79..4066345 100644 (file)
--- a/docs/users_guide/phases.xml
+++ b/docs/users_guide/phases.xml
@@ -725,7 +725,12 @@ $ cat foo.hspp</screen>
           <para>Tell the linker to split the single object file that
           would normally be generated into multiple object files,
           one per top-level Haskell function or type in the module.
-          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
           (warning: don't use it unless you know what you're
           doing!).</para>
         </listitem>
@@ -783,7 +788,7 @@ $ cat foo.hspp</screen>
            <literal>ghc</literal> is not clever 
            enough to figure out that they both need recompiling.  You can
            force recompilation by removing the object file, or by using the
-           <option>-no-recomp</option> flag.
+           <option>-fforce-recomp</option> flag.
             </para> 
         </listitem>
       </varlistentry>
@@ -859,7 +864,7 @@ $ cat foo.hspp</screen>
               machine.  See <xref linkend="sec-using-smp" />.</para>
 
               <para>The ability to make a foreign call that does not
-              block all other Haskell threads.</para>.
+              block all other Haskell threads.</para>
 
               <para>The ability to invoke foreign exported Haskell
               functions from multiple OS threads.</para>