[jhbuild] doc: Add detail on makeargs auto parallelize (GNOME bug 670213)

[Craig Keogh <cskeogh src gnome org>]

commit d4dcf4d7ef57bcfeffc6747aab299f0baa699fd3
Author: Craig Keogh <cskeogh adam com au>
Date:   Mon Aug 27 14:48:38 2012 +0930

    doc: Add detail on makeargs auto parallelize (GNOME bug 670213)

 doc/C/index.docbook |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)
---
diff --git a/doc/C/index.docbook b/doc/C/index.docbook
index 6a306b1..95fc0cf 100644
--- a/doc/C/index.docbook
+++ b/doc/C/index.docbook
@@ -254,8 +254,9 @@
           </term>
           <listitem>
             <simpara>A string listing additional arguments to be passed to
-              <command>make</command>. Defaults to <literal>''</literal>.
-            </simpara>
+              <command>make</command>. JHBuild will automatically append the
+              parallel execution option (<option>-j</option>) based upon
+              available CPU cores. Defaults to <literal>''</literal>.</simpara>
           </listitem>
         </varlistentry>
       </variablelist>
@@ -1728,8 +1729,9 @@ Optional packages: (JHBuild will build the missing packages)
           </term>
           <listitem>
             <simpara>A string listing additional arguments to be passed to
-              <command>make</command>. Defaults to <literal>''</literal>.
-            </simpara>
+              <command>make</command>. JHBuild will automatically append the
+              parallel execution option (<option>-j</option>) based upon
+              available CPU cores. Defaults to <literal>''</literal>.</simpara>
           </listitem>
         </varlistentry>
         <varlistentry id="cfg-makecheck">