$ rpm -qf /lib/libgudev-1.0.so.0
libgudev-150-alt7
$ rpm -qa '*udev*'
libudev-141-alt9
udev-initramfs-118-alt1
udev_static-addon-0.1-alt1
udev-118-alt1
libgudev-150-alt7
udev-rules-118-alt1
$ 

libgudev has been installed by APT in my system, but the required fresh versions of the libraries it depends upon were not installed; as a result, libgudev is not usable:


$ cheese
Xlib:  extension "Generic Event Extension" missing on display ":0.0".
Xlib:  extension "Generic Event Extension" missing on display ":0.0".
Xlib:  extension "Generic Event Extension" missing on display ":0.0".
Xlib:  extension "Generic Event Extension" missing on display ":0.0".
Xlib:  extension "Generic Event Extension" missing on display ":0.0".
Xlib:  extension "Generic Event Extension" missing on display ":0.0".

(cheese:2049): GStreamer-WARNING **: Failed to load plugin '/usr/lib/gstreamer-0.10/libgstlame.so': /usr/lib/gstreamer-0.10/libgstlame.so: undefined symbol: lame_set_VBR_quality
cheese: symbol lookup error: /lib/libgudev-1.0.so.0: undefined symbol: udev_monitor_filter_add_match_subsystem_devtype

$ rpm -q cheese
cheese-2.30.1-alt2
$