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Re: [PATCH] gl_CHECK_NEXT_HEADERS implies AC_CHECK_HEADERS_ONCE
From: |
Bruno Haible |
Subject: |
Re: [PATCH] gl_CHECK_NEXT_HEADERS implies AC_CHECK_HEADERS_ONCE |
Date: |
Thu, 20 Jan 2011 09:57:45 +0100 |
User-agent: |
KMail/1.9.9 |
Hi Paul,
> Here's a proposed patch to simplify gnulib's .m4 files slightly.
> It doesn't affect behavior; it's just a minor refactoring.
So far these .m4 files use AC_CHECK_HEADERS_ONCE explicitly because the fact
that gl_CHECK_NEXT_HEADERS invokes AC_CHECK_HEADERS_ONCE is an undocumented
implementation detail.
I agree with your patch only if you add comments in m4/include_next.m4 in the
description of gl_CHECK_NEXT_HEADERS that make it clear that
gl_CHECK_NEXT_HEADERS invokes AC_CHECK_HEADERS or AC_CHECK_HEADERS_ONCE.
Bruno