- gencpp in PX4/Firmware (ed8517a7d97f15cdf556cdc64496cc72bebb99ab): https://github.com/ros/gencpp/commit/b41ee3060badd660662e21cd9d4f81971c87a420
    - gencpp current upstream: https://github.com/ros/gencpp/commit/7e446a9976916a7b6fc7266098c67fc6f73a76e0
    - Changes: https://github.com/ros/gencpp/compare/b41ee3060badd660662e21cd9d4f81971c87a420...7e446a9976916a7b6fc7266098c67fc6f73a76e0

    7e446a9 2019-01-25 James Xu - enable Windows build (#38)