Please have a look at :
https://launchpad.net/ubuntu/+source/gtest/+changelog
(especially the change for 1.6.0-1ubuntu2)
This is a known issue on Ubuntu:
https://bugs.launchpad.net/ubuntu/+source/cmake/+bug/969891
Catkin solves this problem as follows:
https://github.com/ros/catkin/blob/master/cmake/test/gtest.cmake

On Fri, Nov 23, 2012 at 5:22 PM, Wim Meeussen <wim@hidof.com> wrote:

>
>> The libgtest-dev package did get installed. Here is the full console
>> output:
>>
>>
>> http://build.willowgarage.com/job/prerelease_groovy_unique_identifier_precise_amd64/1/console
>>
>>
>
> There's more going on. I added the libgtest-dev package, but the library
> is still not found. Looking at the Ubuntu package, the library is not part
> of libgtest-dev <
> http://packages.ubuntu.com/precise/amd64/libgtest-dev/filelist>. The only
> Ubuntu package containing the libgtest.so is ugene <
> http://packages.ubuntu.com/search?searchon=contents&keywords=libgtest.so&mode=exactfilename&suite=precise&arch=any>,
> which is not really what we're looking for.  So that leaves the question,
> where did we get install libgtest.so from in the past?
>
> Wim
>
>
>
> Wim Meeussen
> CTO, hiDOF Inc.
> 650-529-4522
> http://hidof.com
>
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