Using array_length macro outside function

[TAMUKI Shoichi]

Hello Florian-san,

From: Florian Weimer <fweimer@redhat.com>
Subject: Re: Using array_length macro outside function
Date: Mon, 04 Feb 2019 15:34:09 +0100

> The other problem is that array_length (locales) is not a constant
> expression because a statement expression is never a constant
> expression.  I had not considered these problems when I wrote the
> array_length macro.
> 
> I would like to retain the verification that the macro argument is not a
> pointer.  What do you think about the patch below?

Thank you.  Applying your patch, I have confirmed that the test can be
compiled successfully.

Regards,
TAMUKI Shoichi