File its20.xml.in of Package its-schema

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE catalog PUBLIC 
  "-//OASIS//DTD Entity Resolution XML Catalog V1.0//EN" 
  "http://www.oasis-open.org/committees/entity/release/1.0/catalog.dtd">
<catalog xmlns="urn:oasis:names:tc:entity:xmlns:xml:catalog">
    <system systemId="http://www.w3.org/2005/11/its"
        uri="@RNG@"/>
    <uri name="http://www.w3.org/2005/11/its"
        uri="@RNG@"/>
    <system systemId="https://www.w3.org/TR/its"
        uri="@RNG@"/>
    <uri name="https://www.w3.org/TR/its"
        uri="@RNG@"/>
</catalog>