commit https://github.com/vim/vim/commit/ab47c61f46f0797308217cd3c045472cb0ec3195 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jun 14 22:02:26 2016 +0200 patch 7.4.1937 Problem: No test for directory stack in quickfix. Solution: Add a test. (Yegappan Lakshmanan)

#! /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