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Date: Mon, 26 Apr 2021 19:32:02 +0000
From: Joseph Myers <joseph@codesourcery.com>
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To: Nick Clifton <nickc@redhat.com>
CC: <gcc-patches@gcc.gnu.org>, <gdb-patches@sourceware.org>, Binutils
 <binutils@sourceware.org>
Subject: Re: RFC: Changing AC_PROG_CC to AC_PROG_CC_C99 in top level configure
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On Mon, 26 Apr 2021, Nick Clifton via Gcc-patches wrote:

> Hi Guys,
> 
>   Given that gcc, gdb and now binutils are all now requiring C99 as a
>   minimum version of C, are there any objections to updating
>   configure.ac to reflect this ?

This isn't an objection, since upgrading auto* for the toolchain can be 
complicated, but note that AC_PROG_CC_C99 is obsolete in Autoconf 2.70 and 
instead AC_PROG_CC enables C11 mode if supported.  (So moving to the 
latest Autoconf and Automake releases would supersede this change.)

-- 
Joseph S. Myers
joseph@codesourcery.com