Comment 7 for bug 1486772

I've subscribed ~pkg-ime to all the packages, and if there's team that's more eager to take care of some packages (ninja-build, gyp) that's very welcomed.

mozc can use a different generator, but the Debian maintainer changed to use ninja-build in recent uploads, so I think it's better to follow instead of diverging too much. I'll follow up on the improvements of ninja-build later, it's looks not hard anyway.