Sorry, I had to look more into this XD so I deleted my previews comment. There was an Issue with _FORTIFY_SOURCE=2 for neovim for Arch since it is the default in the makepkg. From what I understand this is usually good so it should be kept the same for the makepkg, but it is not compatible with neovim so it is disabled in the Cmake file. I think the best way is to pass it as an argument flag to Cmake to silence the warning.
My first comment was wrong since it would force the _FORTIFY_SOURCE=2 so I edit it :), also thanks for maintaining this package.
Sources:
Pinned Comments
fwalch commented on 2016-07-04 19:52 (UTC) (edited on 2016-07-04 19:54 (UTC) by fwalch)