commit https://github.com/vim/vim/commit/f04507d132fbcb63999167ec006fc6e700b5af4f Author: Bram Moolenaar <Bram@vim.org> Date: Sat Aug 20 15:05:39 2016 +0200 patch 7.4.2229 Problem: Startup test fails on Solaris. Solution: Recognize a character device. (Danek Duvall)

#! /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