Propagated changes made in matiec/lib/accessor.h _SET_VAR macro (Mario's matiec changes merged at 39086e324665) to py_ext library, and other (not compiled in) XML standard FB definitions.
<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>