patch 8.1.1575: callbacks may be garbage collected commit https://github.com/vim/vim/commit/75a1a9415b9c207de5a29b25c0d1949c6c9c5c61 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jun 20 03:45:36 2019 +0200 patch 8.1.1575: callbacks may be garbage collected Problem: Callbacks may be garbage collected. Solution: Set reference in callbacks. (Ozaki Kiichi, closes https://github.com/vim/vim/issues/4564)

#! /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