diff --git a/general.ent b/general.ent
index 516d2de60c..daee1ab373 100644
--- a/general.ent
+++ b/general.ent
@@ -364,7 +364,7 @@ export -f as_root</userinput></screen>
 <!ENTITY elfutils-version             "0.157">
 <!ENTITY expect-version               "5.45">
 <!ENTITY gcc-version                  "4.8.2">
-<!ENTITY gc-version                   "7.2d">
+<!ENTITY gc-version                   "7.4.0">
 <!ENTITY gdb-version                  "7.6.1">
 <!ENTITY git-version                  "1.8.4.3">
 <!ENTITY guile-version                "2.0.9">
diff --git a/general/prog/gc.xml b/general/prog/gc.xml
index cc60bcff93..b1362b2e64 100644
--- a/general/prog/gc.xml
+++ b/general/prog/gc.xml
@@ -7,10 +7,10 @@
   <!ENTITY gc-download-http
            "http://www.hpl.hp.com/personal/Hans_Boehm/gc/gc_source/gc-&gc-version;.tar.gz">
   <!ENTITY gc-download-ftp  " ">
-  <!ENTITY gc-md5sum        "91340b28c61753a789eb6077675d87d2">
-  <!ENTITY gc-size          "1.3 MB">
-  <!ENTITY gc-buildsize     "13 MB">
-  <!ENTITY gc-time          "0.2 SBU">
+  <!ENTITY gc-md5sum        "f40d9a47c90d60791eeecb484f8df5ee">
+  <!ENTITY gc-size          "1.1 MB">
+  <!ENTITY gc-buildsize     "9.8 MB (additional 2.2 MB for the tests)">
+  <!ENTITY gc-time          "0.1 SBU (additional 0.1 SBU for the tests)">
 ]>
 
 <sect1 id="gc" xreflabel="GC-&gc-version;">
@@ -80,12 +80,15 @@
       </listitem>
     </itemizedlist>
 
-    <bridgehead renderas="sect4">Optional</bridgehead>
-    <para role="optional">
-      <xref linkend="libatomic_ops"/> (Gc contains a copy of
+    <bridgehead renderas="sect4">Required</bridgehead>
+    <para role="required">
+      <xref linkend="libatomic_ops"/>
+    </para>
+<!--      (Gc contains a copy of
       Libatomic_ops-&gc-version; which it will compile and statically link if
       configure doesn't find Libatomic_ops installed on your system)
     </para>
+-->
 
     <para condition="html" role="usernotes">
       User Notes: <ulink url="&blfs-wiki;/gc"/>
@@ -99,9 +102,11 @@
       Install <application>GC</application> by running the following commands:
     </para>
 
+<!--
 <screen><userinput>sed -i 's#AM_CONFIG_HEADER#AC_CONFIG_HEADERS#' configure.ac &amp;&amp;
 sed -i 's#AM_CONFIG_HEADER#AC_CONFIG_HEADERS#' libatomic_ops/configure.ac &amp;&amp;
-sed -i 's#pkgdata#doc#' doc/doc.am &amp;&amp;
+-->
+<screen><userinput>sed -i 's#pkgdata#doc#' doc/doc.am &amp;&amp;
 autoreconf -fi  &amp;&amp;
 ./configure --prefix=/usr      \
             --enable-cplusplus \
@@ -125,11 +130,12 @@ ln -sfv gc_malloc.3 /usr/share/man/man3/gc.3 </userinput></screen>
   <sect2 role="commands">
     <title>Command Explanations</title>
 
-    <para>
+<!--    <para>
       <command>sed -i 's#AM_CONFIG_HEADER ...</command>: This
       <command>sed</command> fixes building with
       <application>Automake</application> 1.13.
     </para>
+-->
 
     <para>
       <command>sed -i 's#pkgdata#doc#' doc/doc.am</command> and
@@ -172,7 +178,7 @@ ln -sfv gc_malloc.3 /usr/share/man/man3/gc.3 </userinput></screen>
         </seg>
         <seg>
           /usr/include/gc and
-          /usr/share/doc/gc
+          /usr/share/doc/gc&gc-version;
         </seg>
       </seglistitem>
     </segmentedlist>
diff --git a/introduction/welcome/changelog.xml b/introduction/welcome/changelog.xml
index 81c5d8d893..8e358dec08 100644
--- a/introduction/welcome/changelog.xml
+++ b/introduction/welcome/changelog.xml
@@ -46,6 +46,11 @@
     <listitem>
       <para>December 2nd, 2013</para>
       <itemizedlist>
+        <listitem>
+          <para>[fernando] - Update to gc-7.4.0. Thanks Armin Krejzi for
+          reporting. Fixes
+          <ulink url="&blfs-ticket-root;4395">#4395</ulink>.</para>
+        </listitem>
         <listitem>
           <para>[fernando] - Update to libatomic_ops-7.2e. Fixes
           <ulink url="&blfs-ticket-root;4396">#4396</ulink>.</para>