Remove configure switch --disable-strong-random

[postgresql] / doc / src / sgml / installation.sgml

diff --git a/doc/src/sgml/installation.sgml b/doc/src/sgml/installation.sgml
index d3326ce182bcb2a6bb83970574a4cf778f57f7d4..3c9544cc27c58975694384ad6507d3fc4b2de21d 100644 (file)
--- a/doc/src/sgml/installation.sgml
+++ b/doc/src/sgml/installation.sgml
@@ -245,8 +245,10 @@ su - postgres
     <listitem>
      <para>
       You need <productname>OpenSSL</productname>, if you want to support
-      encrypted client connections. The minimum required version is
-      0.9.8.
+      encrypted client connections.  <productname>OpenSSL</productname> is
+      also required for random number generation on platforms that do not
+      have <filename>/dev/urandom</filename> (except Windows).  The minimum
+      version required is 0.9.8.
      </para>
     </listitem>
 
@@ -1111,24 +1113,6 @@ su - postgres
        </listitem>
       </varlistentry>
 
-      <varlistentry>
-       <term><option>--disable-strong-random</option></term>
-       <listitem>
-        <para>
-         Allow the build to succeed even if <productname>PostgreSQL</productname>
-         has no support for strong random numbers on the platform.
-         A source of random numbers is needed for some authentication
-         protocols, as well as some routines in the
-         <xref linkend="pgcrypto"/>
-         module. <option>--disable-strong-random</option> disables functionality that
-         requires cryptographically strong random numbers, and substitutes
-         a weak pseudo-random-number-generator for the generation of
-         authentication salt values and query cancel keys. It may make
-         authentication less secure.
-        </para>
-       </listitem>
-      </varlistentry>
-
       <varlistentry>
        <term><option>--disable-thread-safety</option></term>
        <listitem>