Bug#644873: unmet dependencies: libavcodec53 : Depends: libavutil51 (< 4:0.7.2-99) but 5:0.8-0.1 is to be installed

[spam03 at freenet.de]

Package: libavcodec53
Severity: grave

apt-get -s install libavcodec53
....
The following packages have unmet dependencies:
 libavcodec53 : Depends: libavutil51 (< 4:0.7.2-99) but 5:0.8-0.1 is to be installed or
                         libavutil-extra-51 (< 4:0.7.2.99) but it is not going to be installed
....

The Package: libavutil51(4:0.7.2-1) is currently available at the package servers.

http://packages.debian.org/wheezy/libavcodec53
told me in the list of related packages:

* dep: multiarch-support
   Transitional package to ensure multiarch compatibility

* dep: libavutil51 (<< 4:0.7.2-99)
   Libav utility library
  or libavutil-extra-51 (<< 4:0.7.2.99)
   Libav utility library
  dep: libavutil51 (>= 4:0.7.2-1)
  or libavutil-extra-51 (>= 4:0.7.2)

* dep: libc0.1 (>= 2.7) [kfreebsd-amd64, kfreebsd-i386]
....

didn't get this? Two "version areas"?

By the way I tried to install gnash:
....
gnash-common : Depends: libavcodec53 (>= 4:0.7-1) but it is not going to be installed or
                         libavcodec-extra-53 (>= 4:0.7-1) but it is not going to be installed
....

regards


-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.39-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash