patch 8.2.5061: C89 requires signal handlers to return void Commit: https://github.com/vim/vim/commit/99c48fe9974b8d70ca33674658a3da722b0d6466 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jun 5 22:05:19 2022 +0100 patch 8.2.5061: C89 requires signal handlers to return void Problem: C89 requires signal handlers to return void. Solution: Drop RETSIGTYPE and hard-code a void return value.

" Vim indent file
" Language:	Lisp
" Maintainer:    Sergey Khorev <sergey.khorev@gmail.com>
" URL:		 http://sites.google.com/site/khorser/opensource/vim
" Last Change:	2012 Jan 10

" Only load this indent file when no other was loaded.
if exists("b:did_indent")
   finish
endif
let b:did_indent = 1

setlocal ai nosi

let b:undo_indent = "setl ai< si<"