[gcc r10-10744] libstdc++: Fix hyperlink in docs

[gcc r10-10744] libstdc++: Fix hyperlink in docs

[Jonathan Wakely]

https://gcc.gnu.org/g:d8eaa5429d5b4671cc6756ee725cab04e09dd316

commit r10-10744-gd8eaa5429d5b4671cc6756ee725cab04e09dd316
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Mon May 16 14:54:07 2022 +0100

    libstdc++: Fix hyperlink in docs
    
    libstdc++-v3/ChangeLog:
    
            * doc/xml/manual/prerequisites.xml: Fix attributes for external
            hyperlink.
            * doc/html/manual/setup.html: Regenerate.
    
    (cherry picked from commit 682e587f1021241758f7dfe0b22651008622a312)

Diff:
---
 libstdc++-v3/doc/html/manual/setup.html       | 2 +-
 libstdc++-v3/doc/xml/manual/prerequisites.xml | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/libstdc++-v3/doc/html/manual/setup.html b/libstdc++-v3/doc/html/manual/setup.html
index 069354b8ce0..f27b8d806df 100644
--- a/libstdc++-v3/doc/html/manual/setup.html
+++ b/libstdc++-v3/doc/html/manual/setup.html
@@ -57,7 +57,7 @@
 	      Glibc already provides <code class="function">iconv</code> so you should
 	      not need libiconv anyway.
 	    </p></li><li class="listitem"><p>
-	    <a class="link" href="../">
+	    <a class="link" href="https://www.gnu.org/software/libiconv/#downloading" target="_top">
 	    Download</a> the libiconv sources and extract them into the
 	    top level of the GCC source tree, e.g.,
 	    </p><pre class="programlisting">
diff --git a/libstdc++-v3/doc/xml/manual/prerequisites.xml b/libstdc++-v3/doc/xml/manual/prerequisites.xml
index 020027eb86d..b6b09874eca 100644
--- a/libstdc++-v3/doc/xml/manual/prerequisites.xml
+++ b/libstdc++-v3/doc/xml/manual/prerequisites.xml
@@ -71,7 +71,8 @@
 	  </listitem>
 	  <listitem>
 	    <para>
-	    <link linkend="https://www.gnu.org/software/libiconv/#downloading">
+	    <link xmlns:xlink="http://www.w3.org/1999/xlink"
+	      xlink:href="https://www.gnu.org/software/libiconv/#downloading">
 	    Download</link> the libiconv sources and extract them into the
 	    top level of the GCC source tree, e.g.,
 	    </para>