Avoid starting Zeroconf if ip unspecified or set to localhost. Pick one interface address when given IP is 0.0.0.0
<xsd:element name="Xenomai">
<xsd:complexType>
%(toolchain_gcc)s
<xsd:attribute name="XenoConfig" type="xsd:string" use="optional" default="xeno-config"/>
</xsd:complexType>
</xsd:element>