Another thing is that there's confusion over where 'flags' parameters should be unsigned or not. The confusion comes from existing calls which are a bit of a hodge-podge, even using 'long' in one case: virConnectOpenAuth int flags virDomainCreateLinux unsigned int flags virDomainCreateLinuxJob unsigned int flags virDomainReboot unsigned int flags virDomainCoreDump int flags virDomainCoreDumpJob int flags virDomainGetXMLDesc int flags virDomainCreateJob int flags virDomainMigrate unsigned long flags virNetworkGetXMLDesc int flags virConnectDiscoverStoragePools unsigned int flags virStoragePoolRefresh unsigned int flags virStoragePoolGetXMLDesc int flags virStorageVolCreateXML int flags virStorageVolGetXMLDesc int flags I propose that we change all except virDomainMigrate to 'unsigned int'. That shouldn't break ABI (right?) Rich. -- Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/ Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 03798903