Does your rosdep.yaml file include a listing for '10.04' under ubuntu or 
just '9.10'?  The file should be in your $ROS_ROOT path(should be 
/home/karnad/myros/ros/ros for you).  I had to add '10.04' when I first 
installed ROS.

On 05/12/2010 07:36 PM, Nikhil Karnad wrote:
> Hi, my name is Nikhil and I'm trying to install ROS on Ubuntu but I've 
> run into a linker library incompatibility with libboost. Any help is 
> appreciated. Here are the specifics:
>
> + Operating system is Ubuntu 10.04 LTS (Lucid) 64-bit:
>               Linux beast 2.6.32-22-generic #33-Ubuntu SMP Wed Apr 28 
> 13:28:05 UTC 2010 x86_64 GNU/Linux
>
> + First installed prerequisites: build-essential python-yaml cmake 
> subversion wget
>
> + Used OS-neutral rosinstall method: ~/myros/rosinstall ~/myros/ros 
> http://ros.org/rosinstalls/boxturtle_ros.rosinstall
>
> + The files checkout correctly, but compilation does not work and 
> exits with an error. The lines at the end are:
>   [ 92%] Building CXX object CMakeFiles/roslib.dir/src/package.o
>   [100%] Building CXX object CMakeFiles/roslib.dir/src/debug.o
>   Linking CXX shared library ../lib/libroslib.so
>   /usr/bin/ld: skipping incompatible 
> /opt/ros/lib/libboost_thread-gcc42-mt-1_37.so when searching for 
> -lboost_thread-gcc42-mt-1_37
>   /usr/bin/ld: skipping incompatible 
> /opt/ros/lib/libboost_thread-gcc42-mt-1_37.a when searching for 
> -lboost_thread-gcc42-mt-1_37
>   /usr/bin/ld: cannot find -lboost_thread-gcc42-mt-1_37
>   collect2: ld returned 1 exit status
>
> The complete log from "buildfailures-with-context.txt" is available at 
> the following pastebin link:
> http://pastebin.com/yi4tzxnm
>
> My guess: the shared object in /opt/ros/lib for libboost is a 32-bit 
> ELF, whereas I need a 64-bit version. I deduced this by comparing the 
> default boost shared object with the one in the /opt/ros library:
>
> $ file /opt/ros/lib/libboost_thread-gcc42-mt-1_37.so.1.37.0
> /opt/ros/lib/libboost_thread-gcc42-mt-1_37.so.1.37.0: ELF 32-bit LSB 
> shared object, Intel 80386, version 1 (SYSV), dynamically linked, stripped
>
> $ file /usr/lib/libboost_thread.so.1.40.0
> /usr/lib/libboost_thread.so.1.40.0: ELF 64-bit LSB shared object, 
> x86-64, version 1 (SYSV), dynamically linked, stripped
>
> Could anyone tell me how I can recompile the libraries that go into 
> /opt/ros/lib? Or more generally, how can I get it to work without 
> using a different (32-bit) Linux?
>
> Thanks in advance!
> Nikhil
>
>
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