diff --git a/chapter01/changelog.xml b/chapter01/changelog.xml
index 7d91cc59a..1eeccfa7c 100644
--- a/chapter01/changelog.xml
+++ b/chapter01/changelog.xml
@@ -39,6 +39,9 @@
     <listitem>
       <para>2008-10-27</para>
       <itemizedlist>
+        <listitem>
+          <para>[bdubbs] - Updated to M4 1.4.12.</para>
+        </listitem>
         <listitem>
           <para>[bdubbs] - Added chmod instructions to e2fsprogs and tcl to
           ensure all libraries are writable by root for stripping.</para>
diff --git a/chapter06/m4.xml b/chapter06/m4.xml
index c22282c1d..924e6c7b3 100644
--- a/chapter06/m4.xml
+++ b/chapter06/m4.xml
@@ -42,7 +42,7 @@
 
     <para>Prepare M4 for compilation:</para>
 
-<screen><userinput remap="configure">./configure --prefix=/usr</userinput></screen>
+<screen><userinput remap="configure">./configure --prefix=/usr --enable-threads</userinput></screen>
 
     <para>Compile the package:</para>
 
diff --git a/general.ent b/general.ent
index 7f5170348..6490cdb00 100644
--- a/general.ent
+++ b/general.ent
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
-<!ENTITY version "SVN-20081027">
-<!ENTITY releasedate "October 27, 2008">
+<!ENTITY version "SVN-20081028">
+<!ENTITY releasedate "October 28, 2008">
 <!ENTITY copyrightdate "1999&ndash;2008">
 <!ENTITY milestone "7.0">
 <!ENTITY generic-version "development"> <!-- Use "development", "testing", or "x.y[-pre{x}]" -->
diff --git a/packages.ent b/packages.ent
index e39883610..ff48020bb 100644
--- a/packages.ent
+++ b/packages.ent
@@ -326,10 +326,10 @@
 <!ENTITY linux-headers-ch6-du "341 MB">
 <!ENTITY linux-headers-ch6-sbu "0.1 SBU">
 
-<!ENTITY m4-version "1.4.11">
-<!ENTITY m4-size "928 KB">
+<!ENTITY m4-version "1.4.12">
+<!ENTITY m4-size "884 KB">
 <!ENTITY m4-url "&gnu;m4/m4-&m4-version;.tar.bz2">
-<!ENTITY m4-md5 "96ec473c2a6f203976c028e896a01b28">
+<!ENTITY m4-md5 "b3587c993523dd320c318ec456876839">
 <!ENTITY m4-home "&gnu-software;m4/">
 <!ENTITY m4-ch5-du "10 MB">
 <!ENTITY m4-ch5-sbu "0.2 SBU">