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I'm trying to contribute a package to ROS. This is the error that jenkins.ros.org gave back:
/usr/bin/ld: cannot find -llapack collect2: ld returned 1 exit status
I'm assuming that this is a dependency that needs to be added with a rosdep rule in the manifest. So, I've added the following line to package.xml:
<rosdep name="liblapack-dev"/>
Is this correct?
If you have a package.xml, then you have a package using catkin. In this case, there is no "rosdep" key for the package.xml. You need to do
<build_depend>liblapack-dev</build_depend>
This will make sure the package is installed when you go to build on the farm -- however, to actually get the linker flags, etc, you will need to probably add the following in your CMakeLists.txt, near the find_package(catkin):
find_package(LAPACK REQUIRED)
Then, when linking any executable, you'll probably need:
target_link_libraries(name_of_target ${catkin_LIBRARIES} ${LAPACK_LIBRARIES})
(Note: I've not used LAPACK with catkin, so the actual CMAKE may be a bit different, a quick google search shows the find_package call is probably right, but I'm guessing at the name of the _LIBRARIES portion actually exported by LAPACK... I'd check their documentation if things still don't link)
There is a rosdep rule for a package with that exact name, so you should be fine.
http://www.ros.org/reps/rep-0127.html indicates that: <build_depend> (multiple) Declares a rosdep key or ROS package name that this package requires at build-time. (And it shows the same for run_depend). Is this the right way to go? I'm somewhat confused right now ...
Asked: 2014-03-11 06:13:42 -0500
Seen: 376 times
Last updated: Mar 11 '14
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