Richard W.M. Jones 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?
rpm does handle this, provided the library in question uses symbol
versioning.
In this case, I'm guessing that useredir did one or more of the following:
1. broke abi, but didn't bump soname
2. doesn't support symbol versioning at all
3. does do symbol versioning (in general), but botched it wrt
usbredirhost_foo
-- rex