Are you using any of the boost libraries that relies on Boost.System?  If so
you need to add system to the boost rospack_link_boost line.

If not a package you depend on is exposing it in its headers and not
exporting the boost flags.  Adding system to your link line will still work,
but we should figure out which package it is.

Josh

On Tue, Apr 20, 2010 at 7:30 AM, Robbie Plankenhorn
<rplankenhorn@gmail.com>wrote:

> Is there any reason why I would be getting this error when compiling my own
> packages?  I just started getting this error.
>
> /usr/bin/ld: CMakeFiles/test_client.dir/test_client.o: in function
> __static_initialization_and_destruction_0(int,
> int):test_client.cpp(.text+0x1be): error: undefined reference to
> 'boost::system::get_system_category()'
>   /usr/bin/ld: CMakeFiles/test_client.dir/test_client.o: in function
> __static_initialization_and_destruction_0(int,
> int):test_client.cpp(.text+0x1c8): error: undefined reference to
> 'boost::system::get_generic_category()'
>   /usr/bin/ld: CMakeFiles/test_client.dir/test_client.o: in function
> __static_initialization_and_destruction_0(int,
> int):test_client.cpp(.text+0x1d2): error: undefined reference to
> 'boost::system::get_generic_category()'
>   /usr/bin/ld: CMakeFiles/test_client.dir/test_client.o: in function
> __static_initialization_and_destruction_0(int,
> int):test_client.cpp(.text+0x1dc): error: undefined reference to
> 'boost::system::get_generic_category()'
>   /usr/bin/ld: CMakeFiles/test_client.dir/test_client.o: in function
> __static_initialization_and_destruction_0(int,
> int):test_client.cpp(.text+0x1e6): error: undefined reference to
> 'boost::system::get_system_category()'
>
> Robbie
>
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