patch 8.1.0420: generating vim.lib when using ActivePerl 5.20.3 or later commit https://github.com/vim/vim/commit/1f402806b88f4187e17c0105b4604f425f41dd1c Author: Bram Moolenaar <Bram@vim.org> Date: Fri Sep 21 14:01:27 2018 +0200 patch 8.1.0420: generating vim.lib when using ActivePerl 5.20.3 or later Problem: Generating vim.lib when using ActivePerl 5.20.3 or later. Solution: Redefine XS_EXTERNAL(). (Ken Takata, closes https://github.com/vim/vim/issues/3462)

" Vim filetype plugin file
" Language:             m4
" Previous Maintainer:  Nikolai Weibull <now@bitwi.se>
" Latest Revision:      2008-07-09

if exists("b:did_ftplugin")
  finish
endif
let b:did_ftplugin = 1

let s:cpo_save = &cpo
set cpo&vim

let b:undo_ftplugin = "setl com< cms< fo<"

setlocal comments=:#,:dnl commentstring=dnl\ %s
setlocal formatoptions-=t formatoptions+=croql

let &cpo = s:cpo_save
unlet s:cpo_save