On Thu, Apr 05, 2012 at 08:21:15PM +0200, drago01 wrote: > On Thu, Apr 5, 2012 at 8:03 PM, Richard W.M. Jones <rjones@xxxxxxxxxx> wrote: > > Today when using F17 Alpha, I ran qemu and got an error which was > > something like: > > > > qemu-kvm: undefined symbol usbredirhost_foo > > > > (I don't recall the precise symbol). This was just because that > > version of qemu was compiled against a later version of > > libusbredirhost.so (but one with the same soname), and updating > > libusbredirhost.so fixed the problem. > > > > The 'qemu' package has a bug, of sorts: the maintainer should have > > added a specific Requires line: > > > > Requires: usbredir >= <some version> > > > > However, instead of pushing this problem on packagers, maybe RPM > > should resolve this by encoding the (admittedly long) list of symbols > > used by a binary? > > Well the bug here is that usbredir changed ABI without bumping the soname. AIUI you don't need to bump the soname when you add a new function, only if you incompatibly change an existing function or struct. (Larger questions about the meaning of "ABI" omitted from this message ...) Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into Xen guests. http://et.redhat.com/~rjones/virt-p2v -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
