patch 8.1.2397: should not define __USE_XOPEN Commit: https://github.com/vim/vim/commit/e7dd0deb3c4c4b1f55e28e5fe9a4ef4b76951b85 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Dec 5 23:07:06 2019 +0100 patch 8.1.2397: should not define __USE_XOPEN Problem: Should not define __USE_XOPEN. _XOPEN_SOURCE is not needed for Android. Solution: Remove __USE_XOPEN and adjust #ifdefs. (Ozaki Kiichi, closes #5322)

#! /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