please install completion files from shell completion ${S}/scripts/completion/fg-completion.{zsh,bash} vim/gedit syntax ${S}/scripts/syntax/ tools ${S}/scripts/{tools,atis} examples ${S}/scripts/{perl,python,java}
In flightgear-3.0.0-r1. bash complation script writes files (caches aircraft list for instance) and as such is not safe to use. Please test vim script as I don't use that editor myself.