patch 8.2.4142: build failure with normal features without persistent undo Commit: https://github.com/vim/vim/commit/b4868eddd9cdc7086c88a7a3699dd435d34ae904 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jan 19 11:24:40 2022 +0000 patch 8.2.4142: build failure with normal features without persistent undo Problem: Build failure with normal features without persistent undo. Solution: Adjust #ifdef. (closes https://github.com/vim/vim/issues/9557)

#! /bin/sh
#
# which.sh -- find where an executable is located.  It's here because the
# "which" command is not supported everywhere.  Used by Makefile.

IFS=":"
for ac_dir in $PATH; do
	if test -f "$ac_dir/$1"; then
		echo "$ac_dir/$1"
		break
	fi
done