<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:exsl="http://exslt.org/common"
version="1.0"
exclude-result-prefixes="exsl">
<xsl:import href="http://docbook.sourceforge.net/release/xsl/current/html/docbook.xsl"/>
<xsl:import href="http://docbook.sourceforge.net/release/xsl/current/html/chunk-common.xsl"/>
<xsl:include href="http://docbook.sourceforge.net/release/xsl/current/html/manifest.xsl"/>
…
Becomes
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:exsl="http://exslt.org/common"
version="1.0"
exclude-result-prefixes="exsl">
<xsl:import href="/local/copy/of/docbook.xsl"/>
<xsl:import href="/local/copy/of/chunk-common.xsl"/>
<xsl:include href="/local/copy/of/manifest.xsl"/>
…