[PD] [OT-ish]: Debian wheezy (testing) dependency chain pain trying to install Gem

[Lorenzo Sutton]

Wondering if anyone has an idea or workaround for this dependency chain 
pain:

On debian wheezy with the debian multimedia repositories added.
I try to install Gem I get an error from apt:

The following packages have unmet dependencies:
  gem : Depends: libgmerlin-avdec1 (>= 1.0.0) but it is not going to be 
installed

And trying to install libgmerlin-avdec1:

The following packages have unmet dependencies:
  libgmerlin-avdec1 : Depends: libpostproc52 (>= 4:0.7-1) but it is not 
going to be installed or
  libpostproc-extra-52 (>= 4:0.7-1) but it is not going to be installed

Then try to install libpostproc52:

The following packages have unmet dependencies:
  libpostproc52 : Depends: libavutil51 (< 4:0.7.3-99) but 5:0.8.7-0.0 is 
to be installed or
  libavutil-extra-51 (< 4:0.7.3.99) but it is not going to be installed

Finally trying to install libavutil-extra-51 wants to remove a bunch of 
packages amongst which pd-pdp, chromium, ffmpeg

Any ideas?

Interestingly the pd-extended autobuild 
Pd-0.43.1-extended-debian-wheezy-i386 does not complain and has all 
dependencies solvable.

Thanks,,
Lorenzo.