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Referencing non-ROS packages dependencies

asked 2011-07-19 00:19:32 -0500

mbj gravatar image

updated 2014-01-28 17:10:03 -0500

ngrennan gravatar image


I'm trying to reference a non-ROS package through one of my ROS package but I not have found the correct option in the CMakeList to make this correctly. I want to include the .h of this non-ROS package on to my files, but i don't find the method to make visible.

Thanks in advance and sorry for this simple question, but I don't find any answer in the tutorials.

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answered 2011-07-19 00:39:58 -0500

dornhege gravatar image

You use the standard cmake directives, i.e. include_directories(dir...) and target_link_libraries(bin lib...).

Additionally it is good practice to make a rosdep entry in the manifest if the library is a system package, so that other users can install the dependencies.

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answered 2011-07-19 04:50:57 -0500

tfoote gravatar image

If you're trying to use software already installed on your system @dornhege has the right answer. If you're downloading and compiling the source inside your package you need to add the include_directories(dir...) and to expose the .h files upstream you need to add an export to your manifest for cflags

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answered 2011-07-19 23:48:02 -0500

mbj gravatar image

updated 2011-07-20 20:29:10 -0500

Finally I solved the problem using the @dornhege answer and improvising a little. As you may know, you can link libraries with target_link_libraries, but if you want to link a object you must convert first the source (.cc, .cpp, ...) in a library (creating it with rosbuild_add_library) and latter link it with this command.

My problem was that I was trying to link directly a object as if was a library. But, there is any form to link directly a .o file without converting it firstly in a library?

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yes: the compiler does nothing else then link .o files together, but if you have external code it is more elegant to build that into a library. If that code might be used by others follow the answer but tfoote.
dornhege gravatar image dornhege  ( 2011-07-20 04:14:27 -0500 )edit

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Asked: 2011-07-19 00:19:32 -0500

Seen: 600 times

Last updated: Jul 20 '11