Sorry. Please ignore the it. It is because my manual configure failed. The configure command:

./configure —with-mac --with-modules --disable-acl --without-makeinfo CFLAGS="-O2 -g0"

The error message:
————————————————
config.status: creating src/config.h
config.status: executing src/epaths.h commands
make: *** No rule to make target `epaths-force’. Stop.
config.status: error: ‘src/epaths.h’ could not be made.
————————————————-


在 2020年4月4日 +0800 PM7:34，Eli Zaretskii <eliz@gnu.org>，写道：
> > Date: Sat, 4 Apr 2020 19:22:33 +0800
> > From: HaiJun Zhang <netjune@outlook.com>
> >
> > It seems that “—without-makeinfo” for configure doesn’t has effect while It works well for the origin
> > emacs-26.
>
> Why do you need that option? If the manuals in the Info format are
> part of the tarball, you will not need to run makeinfo anyway.
>

It is because the makeinfo command on macOS is too old to make.