Index: en/codecs.xml
===================================================================
--- en/codecs.xml       (révision 18812)
+++ en/codecs.xml       (copie de travail)
@@ -559,6 +559,9 @@
   --></screen>
   This installs libx264.a in /usr/local/lib and x264.h is placed in
   /usr/local/include.
+  If you are on Darwin (i.e. Mac OSX), you will probably have to update
+  the update the table of contents of archive libraries, by running:
+  <screen>sudo ranlib /usr/local/lib/libx264.a</screen>
 
   With the <systemitem class="library">x264</systemitem> library
   and header placed in the standard locations, building