patch 8.0.0553: toupper/tolower test fails on Mac commit https://github.com/vim/vim/commit/9f4de1f5435b900e43e19766da1a5bed4686cf44 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Apr 8 19:39:43 2017 +0200 patch 8.0.0553: toupper/tolower test fails on Mac Problem: Toupper/tolower test with Turkish locale fails on Mac. Solution: Skip the test on Mac.

#! /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