In commit d2467709 the header of one of
the post parse callbacks was changed, but the function used as the
callback in the xenapi driver wasn't adapted. This resulted into:

  CC       xenapi/libvirt_driver_xenapi_la-xenapi_utils.lo
 xenapi/xenapi_driver.c:63:5: error: initialization from incompatible pointer type [-Werror]
 xenapi/xenapi_driver.c:63:5: error: (near initialization for 'xenapiDomainDefParserConfig.devicesPostParseCallback') [-Werror]