Make compatible with windows

[christophebedard]

Thanks for the PR! I've changed the base branch from humble to main. We'll backport to humble after this is merged. Could you just rebase your commit on the main branch? And also could you sign off your commit (git commit --amend --no-edit -s)?

[anrp-tri]

Done.

[emersonknapp]

Pulls: ros-tooling/topic_tools#68 Gist: https://gist.githubusercontent.com/emersonknapp/6344476197d93205d189a2cf57bae540/raw/e67e903ac4f5f0625e6562d407542891cc75041f/ros2.repos BUILD args: --packages-above-and-dependencies topic_tools TEST args: --packages-above topic_tools ROS Distro: rolling Job: ci_launcher ci_launcher ran: https://ci.ros2.org/job/ci_launcher/12331

• Linux
• Linux-aarch64
• Windows

[emersonknapp]

Thanks for this patch - we haven't run Windows CI on this package yet, I'm glad it looks like only a small change to make it go. Looking forward to seeing if the CI reveals any extra warnings or other things. However if this makes build go from red->yellow that's still fine by me and I'll be happy to merge it, even if not green

[emersonknapp]

@mergifyio backport iron humble

[mergify[bot]]

backport iron humble

✅ Backports have been created

* [#69 Make compatible with windows (backport #68)](https://github.com/ros-tooling/topic_tools/pull/69) has been created for branch `iron` * [#70 Make compatible with windows (backport #68)](https://github.com/ros-tooling/topic_tools/pull/70) has been created for branch `humble`