Add documentation about "--" not working on Free/OpenBSD.

diff --git a/doc/src/sgml/ref/postmaster.sgml b/doc/src/sgml/ref/postmaster.sgml
index 4f7b7d565ac0570e862e0d5fcbca19e705d07fc8..594dad3f319d575736c37c28b12ca820172597a4 100644 (file)
--- a/doc/src/sgml/ref/postmaster.sgml
+++ b/doc/src/sgml/ref/postmaster.sgml
@@ -271,7 +271,13 @@ Postgres documentation
       <term>--<replaceable>name</replaceable>=<replaceable>value</replaceable></term>
       <listitem>
        <para>
-        Sets a named run-time parameter; a shorter form of <option>-c</>.
+        Sets a named run-time parameter; a shorter form of
+        <option>-c</>.
+       </para>
+       <para>
+       The <option>--</> option will not work on FreeBSD or OpenBSD.
+       Use <option>-c</> instead. This should be fixed in
+       <productname>PostgreSQL</productname> 7.3.
        </para>
       </listitem>
      </varlistentry>