Arch Linux をアップデートしたら、Vimの補完プラグイン neocompleteが下記のエラーで動かなくなった。
neocomplete requires Vim 7.3.885 or later with Lua support
vim --versionの結果はこれ。
VIM - Vi IMproved 8.0 (2016 Sep 12, compiled Feb 14 2017 10:57:50)
Included patches: 1-329
Compiled by Arch Linux
Huge version without GUI. Features included (+) or not (-):
+acl +file_in_path +mouse_sgr +tag_old_static
+arabic +find_in_path -mouse_sysmouse -tag_any_white
+autocmd +float +mouse_urxvt +tcl/dyn
-balloon_eval +folding +mouse_xterm +termguicolors
-browse -footer +multi_byte +terminfo
++builtin_terms +fork() +multi_lang +termresponse
+byte_offset +gettext -mzscheme +textobjects
+channel -hangul_input +netbeans_intg +timers
+cindent +iconv +num64 +title
-clientserver +insert_expand +packages -toolbar
-clipboard +job +path_extra +user_commands
+cmdline_compl +jumplist +perl/dyn +vertsplit
+cmdline_hist +keymap +persistent_undo +virtualedit
+cmdline_info +lambda +postscript +visual
+comments +langmap +printer +visualextra
+conceal +libcall +profile +viminfo
+cryptv +linebreak +python/dyn +vreplace
+cscope +lispindent +python3/dyn +wildignore
+cursorbind +listcmds +quickfix +wildmenu
+cursorshape +localmap +reltime +windows
+dialog_con +lua/dyn +rightleft +writebackup
+diff +menu +ruby/dyn -X11
+digraphs +mksession +scrollbind -xfontset
-dnd +modify_fname +signs -xim
-ebcdic +mouse +smartindent -xpm
+emacs_tags -mouseshape +startuptime -xsmp
+eval +mouse_dec +statusline -xterm_clipboard
+ex_extra +mouse_gpm -sun_workshop -xterm_save
+extra_search -mouse_jsbterm +syntax
+farsi +mouse_netterm +tag_binary
system vimrc file: "/etc/vimrc"
user vimrc file: "$HOME/.vimrc"
2nd user vimrc file: "~/.vim/vimrc"
user exrc file: "$HOME/.exrc"
defaults file: "$VIMRUNTIME/defaults.vim"
fall-back for $VIM: "/usr/share/vim"
下記のIssueを見たところ、 lua/dynは単体では動作しないっぽい？
https://github.com/Shougo/neocomplete.vim/issues/457
試しに :lua print "hello"としたところ
Could not load library liblua.so.5.3.4
というエラーが出たため、 sudo pacman -S luaで解決した。
ウィンドウマネージャーに Awesomeを使っているため、古いほうが入っていたのかもしれない。