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Re: Request to revert the C version change

From: Ross Burton
Subject: Re: Request to revert the C version change
Date: Mon, 4 Jan 2021 14:23:08 +0000

I wanted to test this beforehand but Christmas got in the way.  I'm
testing the contents of the 2.70 branch now and it's looking good, so
thanks very much!


On Wed, 23 Dec 2020 at 19:21, Zack Weinberg <> wrote:
> On Sun, Dec 20, 2020 at 12:09 PM Zack Weinberg <> wrote:
> > I'm not happy about needing to kludge backward compatibility with the
> > older std-gnu11.m4 into autoconf 2.70.1 but I'm going to do it.
> As of commit 2d0f19d84ddb13412382674fd48e6fc5c2875d0e, Autoconf
> *trunk* should now be backward compatible with the older std-gnu11.m4.
> I verified that I can regenerate bison 3.7.4's configure script with
> that version of Autoconf, making no other changes to the bison release
> tarball, and then configure, build, and test bison with no errors.
> The patch is somewhat invasive, though.  The full text is attached,
> and before I merge it to the 2.70 branch, I'd appreciate any extra
> testing and/or code review anyone cares to give it.
> zw

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