Fix bug preventing library to re-compiled when dependant files changed.
Fix bug preventing to re-compile a file without changes even when file miscompiled.
<xsd:element name="Xenomai">
<xsd:complexType>
%(toolchain_gcc)s
<xsd:attribute name="XenoConfig" type="xsd:string" use="optional" default="/usr/xenomai/bin/xeno-config"/>
</xsd:complexType>
</xsd:element>