Re: [PATCH v4] qemu: add runtime config option for nbdkit

Currently when we build with nbdkit support, libvirt will always try to use nbdkit to access remote disk sources when it is available. But without an up-to-date selinux policy allowing this, it will fail. because the required selinux policies are not yet widely available, we have disabled nbdkit support on rpm builds for all distributions before Fedora 40. Unfortunately, this makes it more difficult to test nbdkit support. After someone updates to the necessary selinux policies, they would also need to rebuild libvirt to enable nbdkit support. By introducing a configure option (nbdkit_config_default), we can build packages with nbdkit support but have it disabled by default. Signed-off-by: Jonathon Jongsma <jjongsma(a)redhat.com&gt; Suggested-by: Andrea Bolognani <abologna(a)redhat.com&gt; --- changes in v4 - squashed in Andrea's suggested changes - updated error message - Changed one instance of WITH_NDBKIT to WITH_NBDKIT :) - tested