[ros-users] orocos_kdl failure on OSX

[Kevin Walchko]

Thanks!! I was able to build the entire orocos_kinematics_dynamics stack using your patch in ticket #4.



On Sep 3, 2011, at 2:06 PM, Nicholas Butko wrote:

> In the port install log, you will see the correct checksum. You can manually update the Portfile with the new checksum. 
> 
> 
> 
> On Sep 3, 2011, at 10:49 AM, Kevin Walchko <kevin.walchko at gmail.com> wrote:
> 
>> I am working on it right now …
>> 
>> My problem is python_orocos_kdl is looking for eigen and I can't load it from macports due to a checksum miss match. Googling around, it appears that author likes to do stealth updates and I can't seem to figure out how to force macports to install eigen. Did you have this problem?
>> 
>> On Sep 3, 2011, at 1:45 PM, Nicholas Butko wrote:
>> 
>>> Kevin, can you build python_orocos_kdl? I fixed the cmake problems with orocos_kdl, similar to you, but I get a ton of undefined symbol link errors for the python version, which prevents many stacks from building. It is a huge point of failure for me right now.
>>> 
>>> 
>>> 
>>> On Sep 3, 2011, at 10:22 AM, Kevin Walchko <kevin.walchko at gmail.com> wrote:
>>> 
>>>> Hi,
>>>> 
>>>> [setup]
>>>> 
>>>> ROS Electric
>>>> OSX Lion with Macports
>>>> 
>>>> [Problem]
>>>> 
>>>> Eigen3.cmake couldn't find eigen3
>>>> 
>>>> [Solution]
>>>> 
>>>> Instead of using the included cmake files in orocos_kdl/config/Eigen3.cmake I changed CMakeLists.txt to use pkg-config which macports automatically sets up for OSX. Don't know if Linux does this too.
>>>> 
>>>> CMakeLists.txt:
>>>> include($ENV{ROS_ROOT}/core/rosbuild/FindPkgConfig.cmake)
>>>> pkg_check_modules(EIGEN3 REQUIRED eigen3)
>>>> include_directories(${EIGEN3_INCLUDE_DIRS})
>>>> #INCLUDE(${PROJ_SOURCE_DIR}/config/FindEigen3.cmake)
>>>> #INCLUDE_DIRECTORIES(${EIGEN3_INCLUDE_DIR})
>>>> 
>>>> 
>>>> Not sure why the pkg-config wasn't used in the first place, it seems to work nice.
>>>> 
>>>> The included Eigen3.cmake appears to be too limited in where it looks, at least for OSX. Could add /opt/local/include/eigen3 but didn't try.
>>>> 
>>>> config/Eigen3.cmake:
>>>> FIND_PATH(EIGEN3_INCLUDE_DIR Eigen/Core /usr/include /usr/include/eigen3)
>>>> 
>>>> Thanks.
>>>> 
>>>> Kevin
>>>> 
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