what must i add to the cmakefile.txt

asked 2013-01-28 07:15:15 -0500

mrpiccolo
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hi I want create a node that uses a library that is installed in my pc. To compile i typed: gcc -o myprogram myprogram.c -l rt -l bcm2835

what must i add to the cmakefile.txt? thanks

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answered 2013-01-28 09:25:25 -0500

thebyohazard
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As in any other cmake project, you'd put target_link_libraries(${PROJECT_NAME) <NAME_OF_LIBRARY_TO_LINK>) in your CmakeLists.txt. There wasn't any ros-specific cmake macro for using an installed library in a node in rosbuild, and if I understand correctly, the new catkin build system does not use ANY ros-specific macros. I haven't actually used catkin yet, though. Some useful links:

cmake documentation
catkin page
rosbuild cmake API (for pre-groovy distros)

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answered 2013-01-29 05:58:50 -0500

mrpiccolo
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thanks for the answer I tried: target_link_libraries(${NAME_OF_MY_NODE) <name_of_library_to_link>) target_link_libraries(${NAME_OF_MY_NODE) NAME_OF_LIBRARY_TO_LINK) target_link_libraries(NAME_OF_MY_NODE NAME_OF_LIBRARY_TO_LINK)

But doesn't work

other suggestions?

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You need to replace NAME_OF_LIBRARY_TO_LINK by the name of the library to link.

dornhege ( 2013-01-29 06:43:33 -0500 )edit

I know

mrpiccolo ( 2013-01-29 10:42:44 -0500 )edit

Please state exactly what you actually did and what the errors are by copy/pasting this information and updating your original question. Different cmake commands than you used and "But doesn't work" will not enable anyone to infer any solutions.

dornhege ( 2013-01-29 22:54:53 -0500 )edit

I tried "target_link_libraries(NODE rt bcm2835) and now work

mrpiccolo ( 2013-01-30 22:46:20 -0500 )edit

thanks and sorry for the delay but yesterday was a bad day

mrpiccolo ( 2013-01-30 22:48:19 -0500 )edit

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