On Tue, 10 Jul 2018 07:59:15 +0200 Markus Armbruster <armbru@redhat.com> wrote:
In addition to actively pulling libvirt developers into review of deprecation patches, we should pursue the idea to optionally let QEMU fail on use of deprecated features, then have libvirt run its test suite that way.
What about the following: qemu_deprecated_option("old_option", "modern_option"); Which would then print (in normal operation) "WARNING: 'old_option' is deprecated and will be removed; use 'modern_option' instead" to the monitor (or to stderr? to both?). If you start QEMU with a -no-deprecated-options switch, it would print "ERROR: 'old_option' is deprecated and will be removed; use 'modern_option' instead" and do an exit(1). Would that be workable?