Thanks Brian and Tully,

The change in <myPath>/ros/rosdep.yaml did the trick.  I replaced following
in libtool section

            debian: libtool libltdl3-dev

with
            debian: libtool libltdl-dev

On compilation of pr2_2dnav, no dependency unresolved reported. 

I am trying to do some useful stuff using Cturtle version on Debian Squeeze
release which I updated with June 28,2010 make iso files. About output of
commands, following is console copy-paste text:

nitin@tangri:~/MS/downloads/robotics/ros/ros-pkg$ `dpkg-query libltdl3-dev`
dpkg-query: need an action option
Use --help for help about querying packages.

nitin@tangri:~/MS/downloads/robotics/ros/ros-pkg$ `dpkg-query -l 
libltdl3-dev`
bash: Desired=Unknown/Install/Remove/Purge/Hold: No such file or directory

nitin@tangri:~/MS/downloads/robotics/ros/ros-pkg$ dpkg-query -W
-f='${Package} ${Status}\n'
This list every single package installed on my machine, which is a very long
list. Do you really want me to post this?? If yes, I will do that :)

regards
nitin
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