Script not generated for libraries in subfolders

[hplatou]

When building a colcon cmake package which installs libraries in a subfolder of lib no ld_library_path_lib.xx files are generated.
Would it be possible to extend the search for .so/.dylib/.dll files to all subfolders under lib?

[cottsay]

I don't think that it's standard behavior for libraries in subdirectories of lib to be part of the library search path implicitly. On RedHat systems, for example, you would need to add a file to /etc/ld.so.conf.d/ to instruct the ld.so search to include that directory.

Similarly to how ld.so.conf can be used to extend the ld.so search, you should be able to create a custom hook for your package to specifically extend LD_LIBRARY_PATH to include your custom library directory, and let colcon know about it using a colcon.pkg file in your package.

https://colcon.readthedocs.io/en/released/user/configuration.html?highlight=hook#colcon-pkg-files

Example implementation of a custom environment hook: https://github.com/ros2/ros2cli/blob/rolling/ros2cli/colcon.pkg