Index: general.ent
===================================================================
--- general.ent	(revision 9945e317b04573503a2a212581186aaf2538736d)
+++ general.ent	(revision 37bea214402f239356a4659e0d4a36723a60349c)
@@ -4,5 +4,5 @@
 -->
 
-<!ENTITY day          "30">                   <!-- Always 2 digits -->
+<!ENTITY day          "31">                   <!-- Always 2 digits -->
 <!ENTITY month        "03">                   <!-- Always 2 digits -->
 <!ENTITY year         "2012">
@@ -10,5 +10,5 @@
 <!ENTITY copyholder   "The BLFS Development Team">
 <!ENTITY version      "&year;-&month;-&day;">
-<!ENTITY releasedate  "March 30th, &year;">
+<!ENTITY releasedate  "March 31st, &year;">
 <!-- <!ENTITY releasedate  "November &day;st, &year;"> -->
 <!ENTITY pubdate      "&year;-&month;-&day;"> <!-- metadata req. by TLDP -->
@@ -215,4 +215,5 @@
 <!ENTITY libffi-version               "3.0.10">
 <!ENTITY gobject-introspection-version "1.32.0">
+<!ENTITY gsl-version                  "1.15">
 <!ENTITY libgee-version               "0.6.0">
 <!ENTITY libical-version              "0.48">
Index: general/genlib/genlib.xml
===================================================================
--- general/genlib/genlib.xml	(revision 9945e317b04573503a2a212581186aaf2538736d)
+++ general/genlib/genlib.xml	(revision 37bea214402f239356a4659e0d4a36723a60349c)
@@ -52,4 +52,5 @@
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="glib2.xml"/>
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="glibmm.xml"/>
+  <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="gsl.xml"/>
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="libidl.xml"/>
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="libcroco.xml"/>
Index: general/genlib/gsl.xml
===================================================================
--- general/genlib/gsl.xml	(revision 37bea214402f239356a4659e0d4a36723a60349c)
+++ general/genlib/gsl.xml	(revision 37bea214402f239356a4659e0d4a36723a60349c)
@@ -0,0 +1,200 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+  <!ENTITY % general-entities SYSTEM "../../general.ent">
+  %general-entities;
+
+  <!ENTITY gsl-download-http
+    "http://ftp.gnu.org/pub/gnu/gsl/gsl-&gsl-version;.tar.gz">
+  <!ENTITY gsl-download-ftp
+    "ftp://ftp.gnu.org/pub/gnu/gsl/gsl-&gsl-version;.tar.gz">
+  <!ENTITY gsl-md5sum        "494ffefd90eef4ada678c306bab4030b">
+  <!ENTITY gsl-size          "3.1 MB">
+  <!ENTITY gsl-buildsize     "91 MB">
+  <!ENTITY gsl-time          "0.9 SBU">
+]>
+
+<sect1 id="gsl" xreflabel="Gsl-&gsl-version;">
+  <?dbhtml filename="gsl.html"?>
+
+  <sect1info>
+    <othername>$LastChangedBy$</othername>
+    <date>$Date$</date>
+  </sect1info>
+
+  <title>Gsl-&gsl-version;</title>
+
+  <indexterm zone="gsl">
+    <primary sortas="a-gsl">Gsl</primary>
+  </indexterm>
+
+  <sect2 role="package">
+    <title>Introduction to Gsl</title>
+
+    <para>
+      The GNU Scientific Library (GSL) is a numerical library for C and C++
+      programmers. It provides a wide range of mathematical routines such as
+      random number generators, special functions and least-squares fitting.
+    </para>
+
+    &lfs71_checked;
+
+    <bridgehead renderas="sect3">Package Information</bridgehead>
+    <itemizedlist spacing="compact">
+      <listitem>
+        <para>
+          Download (HTTP): <ulink url="&gsl-download-http;"/>
+        </para>
+      </listitem>
+      <listitem>
+        <para>
+          Download (FTP): <ulink url="&gsl-download-ftp;"/>
+        </para>
+      </listitem>
+      <listitem>
+        <para>
+          Download MD5 sum: &gsl-md5sum;
+        </para>
+      </listitem>
+      <listitem>
+        <para>
+          Download size: &gsl-size;
+        </para>
+      </listitem>
+      <listitem>
+        <para>
+          Estimated disk space required: &gsl-buildsize;
+        </para>
+      </listitem>
+      <listitem>
+        <para>
+          Estimated build time: &gsl-time;
+        </para>
+      </listitem>
+    </itemizedlist>
+  </sect2>
+
+  <sect2 role="installation">
+    <title>Installation of Gsl</title>
+
+    <para>
+      Install <application>Gsl</application> by running the following commands:
+    </para>
+
+<screen><userinput>./configure --prefix=/usr --disable-static &amp;&amp;
+make &amp;&amp;
+make html</userinput></screen>
+
+    <para>
+      To test the results, issue: <command>make check</command>.
+    </para>
+
+    <para>
+      Now, as the <systemitem class="username">root</systemitem> user:
+    </para>
+
+<screen role="root"><userinput>make install &amp;&amp;
+mkdir /usr/share/doc/gsl-&gsl-version; &amp;&amp;
+cp doc/gsl-ref.html/* /usr/share/doc/gsl-&gsl-version;</userinput></screen>
+  </sect2>
+
+  <sect2 role="commands">
+    <title>Command Explanations</title>
+
+    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
+    href="../../xincludes/static-libraries.xml"/>
+  </sect2>
+
+  <sect2 role="content">
+    <title>Contents</title>
+
+    <segmentedlist>
+      <segtitle>Installed Programs</segtitle>
+      <segtitle>Installed Libraries</segtitle>
+      <segtitle>Installed Directory</segtitle>
+
+      <seglistitem>
+        <seg>
+          gsl-config, gsl-histogram and gsl-randist.
+        </seg>
+        <seg>
+          libgslcblas.so and libgsl.so.
+        </seg>
+        <seg>
+          /usr/include/gsl.
+        </seg>
+      </seglistitem>
+    </segmentedlist>
+
+    <variablelist>
+      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
+      <?dbfo list-presentation="list"?>
+      <?dbhtml list-presentation="table"?>
+
+      <varlistentry id="gsl-config">
+        <term><command>gsl-config</command></term>
+        <listitem>
+          <para>
+            is a shell script to get the version number and compiler flags of
+            the installed <application>Gsl</application> library.
+          </para>
+          <indexterm zone="gsl gsl-config">
+            <primary sortas="b-gsl-config">gsl-config</primary>
+          </indexterm>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry id="gsl-histogram">
+        <term><command>gsl-histogram</command></term>
+        <listitem>
+          <para>
+            is a demonstration program for the GNU Scientific Library that
+            computes a histogram from data taken from stdin.
+          </para>
+          <indexterm zone="gsl gsl-histogram">
+            <primary sortas="b-gsl-histogram">gsl-histogram</primary>
+          </indexterm>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry id="gsl-randist">
+        <term><command>gsl-randist</command></term>
+        <listitem>
+          <para>
+            is a demonstration program for the GNU Scientific Library that
+            generates random samples from various distributions.
+          </para>
+          <indexterm zone="gsl gsl-randist">
+            <primary sortas="b-gsl-randist">gsl-randist</primary>
+          </indexterm>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry id="libgslcblas">
+        <term><filename class="libraryfile">libgslcblas.so</filename></term>
+        <listitem>
+          <para>
+            contains functions that implement a C interface to Basic Linear
+            Algebra Subprograms.
+          </para>
+          <indexterm zone="gsl libgslcblas">
+            <primary sortas="c-libgslcblas">libgslcblas.so</primary>
+          </indexterm>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry id="libgsl.so">
+        <term><filename class="libraryfile">libgsl.so.so</filename></term>
+        <listitem>
+          <para>
+            contains functions that provide a collection of numerical routines
+            for scientific computing.
+          </para>
+          <indexterm zone="gsl libgsl.so">
+            <primary sortas="c-libgsl.so">libgsl.so.so</primary>
+          </indexterm>
+        </listitem>
+      </varlistentry>
+    </variablelist>
+  </sect2>
+</sect1>
Index: general/prog/pdl.xml
===================================================================
--- general/prog/pdl.xml	(revision 9945e317b04573503a2a212581186aaf2538736d)
+++ general/prog/pdl.xml	(revision 37bea214402f239356a4659e0d4a36723a60349c)
@@ -351,5 +351,5 @@
     <itemizedlist spacing='compact'>
       <listitem>
-        <para><ulink url="http://www.gnu.org/software/gsl/">GSL</ulink></para>
+        <para><xref linkend="gsl"/></para>
       </listitem>
     </itemizedlist>
Index: introduction/welcome/changelog.xml
===================================================================
--- introduction/welcome/changelog.xml	(revision 9945e317b04573503a2a212581186aaf2538736d)
+++ introduction/welcome/changelog.xml	(revision 37bea214402f239356a4659e0d4a36723a60349c)
@@ -48,4 +48,7 @@
           <para>[abenton] - Added Inkscape 0.48.2.</para>
         </listitem>
+        <listitem>
+          <para>[abenton] - Added Gsl 1.15.</para>
+        </listitem>
       </itemizedlist>
     </listitem>
Index: multimedia/libdriv/gstreamer.xml
===================================================================
--- multimedia/libdriv/gstreamer.xml	(revision 9945e317b04573503a2a212581186aaf2538736d)
+++ multimedia/libdriv/gstreamer.xml	(revision 37bea214402f239356a4659e0d4a36723a60349c)
@@ -74,5 +74,5 @@
     <para role="optional"><xref linkend="gobject-introspection"/> 
       (required if building Gnome),
-      <ulink url="http://www.gnu.org/software/gsl/">GSL</ulink>,
+      <xref linkend="gsl"/>,
       <xref linkend='check'/> (required to run the unit regression tests and also enables
             <filename class='libraryfile'>libgstcheck-0.10</filename>), and
Index: xsoft/other/inkscape.xml
===================================================================
--- xsoft/other/inkscape.xml	(revision 9945e317b04573503a2a212581186aaf2538736d)
+++ xsoft/other/inkscape.xml	(revision 37bea214402f239356a4659e0d4a36723a60349c)
@@ -88,6 +88,5 @@
       <xref linkend="gtkmm2"/>,
       <xref linkend="gc"/>,
-      <!-- <xref linkend="gsl"/>, -->
-      <ulink url="http://ftp.gnu.org/pub/gnu/gsl/">Gsl</ulink>
+      <xref linkend="gsl"/>,
       <xref linkend="boost"/>,
       <xref linkend="libpng"/> and
