Supress msvc dll exported interface warning

[Blast545]

Summary

Suppresses a warning appearing in the CI job for ign-launch5. Reference build: https://build.osrfoundation.org/job/gz_launch-ign-launch5-win/49/

This fix was applied to gz-launch here: https://github.com/gazebosim/gz-launch/pull/199/files#diff-c3f9cb0a10e4084bda0abece3428e80d90754073fc083b78887bfbcf6276bb07

cc: @Crola1702

Checklist

• Signed all commits for DCO
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if the library has them)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.

[azeey]

You need to link against ignition-utils${IGN_UTILS_VER}::core for this to work. You'd add that in

gz-launch/src/CMakeLists.txt

Line 23 in e2a18dd

${BACKWARD_LIBRARIES}

[Blast545]

Just added it with 7ba196f. But I think the cmd code copies back the Manager.hh source into the cmd folder and then the library is not linked there.

Should I link it there:

gz-launch/src/cmd/CMakeLists.txt

Line 12 in e2a18dd

target_link_libraries(ign PUBLIC

?

[azeey]

Ah, we'll need to link ignition-utils there as well then.

[Blast545]

Manager.hh seems to be used in various places, I had to add a few extra link includes, CI seems to be happy now.