--- iputils-s20190515/doc/custom-man.xsl.old	2019-06-25 11:48:48.790000000 +0000
+++ iputils-s20190515/doc/custom-man.xsl	2019-06-25 11:49:06.250000000 +0000
@@ -5,7 +5,7 @@
                 extension-element-prefixes="exsl"
                 version="1.0">
 
-<xsl:import href="http://docbook.sourceforge.net/release/xsl-ns/current/manpages/docbook.xsl"/>
+<xsl:import href="file:///usr/share/xml/docbook/xsl-stylesheets-ns/manpages/docbook.xsl"/>
 
 <xsl:template name="top.comment" />
 
--- iputils-s20190515/doc/meson.build.old	2019-06-25 14:54:58.170000000 +0000
+++ iputils-s20190515/doc/meson.build	2019-06-25 14:55:28.460000000 +0000
@@ -48,7 +48,7 @@
 ]
 
 if xsltproc.found()
-	xsl = 'http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl'
+	xsl = 'file:///usr/share/xml/docbook/xsl-stylesheets-ns/manpages/docbook.xsl'
 	testrun = run_command([xsltproc, '--nonet', xsl])
 	xsltproc_works = testrun.returncode() == 0
 	if xsltproc_works == false
--- iputils-s20190515/doc/custom-html.xsl.old	2019-06-25 14:56:50.460000000 +0000
+++ iputils-s20190515/doc/custom-html.xsl	2019-06-25 14:57:11.680000000 +0000
@@ -2,7 +2,7 @@
 
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
 
-<xsl:import href="http://docbook.sourceforge.net/release/xsl-ns/current/html/docbook.xsl"/>
+<xsl:import href="file:///usr/share/xml/docbook/xsl-stylesheets-ns/html/docbook.xsl"/>
 <!--
   - The docbook stylesheet injects empty anchor tags into generated HTML, identified by an auto-generated ID.
   - Ask the docbook stylesheet to generate reproducible output when generating (these) ID values.