foxy build error linking boost libbrary

[zuxinrui]

Platform: ubuntu 20.04 foxy
When build the package from source using ros2 branch, something wrong with linking the boost library:

--- stderr: geometric_shapes
/usr/bin/ld: CMakeFiles/test_loaded_meshes.dir/test_loaded_meshes.cpp.o: in function CompareMeshVsPrimitive::SetUp()': test_loaded_meshes.cpp:(.text._ZN22CompareMeshVsPrimitive5SetUpEv[_ZN22CompareMeshVsPrimitive5SetUpEv]+0x13f): undefined reference to boost::filesystem::path::operator/=(boost::filesystem::path const&)'
collect2: error: ld returned 1 exit status
make[2]: *** [test/CMakeFiles/test_loaded_meshes.dir/build.make:158: test/test_loaded_meshes] Error 1
make[1]: *** [CMakeFiles/Makefile2:422: test/CMakeFiles/test_loaded_meshes.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
/usr/bin/ld: CMakeFiles/test_point_inclusion.dir/test_point_inclusion.cpp.o: in function MeshPointContainment_Pr2Forearm_Test::TestBody()': test_point_inclusion.cpp:(.text+0x710b): undefined reference to boost::filesystem::path::operator/=(boost::filesystem::path const&)'
/usr/bin/ld: CMakeFiles/test_point_inclusion.dir/test_point_inclusion.cpp.o: in function MeshPointContainment_Basic_Test::TestBody()': test_point_inclusion.cpp:(.text+0x17216): undefined reference to boost::filesystem::path::operator/=(boost::filesystem::path const&)'
collect2: error: ld returned 1 exit status
make[2]: *** [test/CMakeFiles/test_point_inclusion.dir/build.make:158: test/test_point_inclusion] Error 1
make[1]: *** [CMakeFiles/Makefile2:277: test/CMakeFiles/test_point_inclusion.dir/all] Error 2
/usr/bin/ld: CMakeFiles/test_body_operations.dir/test_body_operations.cpp.o: in function Bodies_ConstructShapeFromBodyMesh_Test::TestBody()': test_body_operations.cpp:(.text+0x2346): undefined reference to boost::filesystem::path::operator/=(boost::filesystem::path const&)'
/usr/bin/ld: CMakeFiles/test_body_operations.dir/test_body_operations.cpp.o: in function Bodies_ConstructMarkerFromBodyMesh_Test::TestBody()': test_body_operations.cpp:(.text+0x341a): undefined reference to boost::filesystem::path::operator/=(boost::filesystem::path const&)'
collect2: error: ld returned 1 exit status
make[2]: *** [test/CMakeFiles/test_body_operations.dir/build.make:158: test/test_body_operations] Error 1
make[1]: *** [CMakeFiles/Makefile2:480: test/CMakeFiles/test_body_operations.dir/all] Error 2
make: *** [Makefile:141: all] Error 2

I'm not sure if this can be fixed with adjusting the Cmakelist.txt

[pvanlaar]

I tried to reproduce the issue, but I could not. I started from a clean fox-ros-base installation on Ubuntu 20.04 and cloned this repo. After that I used rosdep to install the dependencies for this package. One of the dependencies that got installed was Boost (installed as version 17, i.e. libboost1.71-dev).

Could you be missing libboost-dev on your system?

Commands you could use:

Install Boost using apt-get

sudo apt-get update -qq
sudo apt-get install libboost1.71-dev

Using rosdep to install all dependencies:

sudo rosdep init
rosdep update # no sudo

## from workspace root
rosdep install --from-paths src -y -i

[jlack1987]

Yeah I have the same issue. The reason is here. This package depends on a Boost component(filesystem) but ament_export_dependencies doesn't export the components. The trick is to add a cmake extras thing and append the target to the libraries there. I'll see if I can MR a fix.

[JafarAbdi]

Should be fixed with #205