From 2be27f9f5bf0d889a6126fbb96701d85bfce1000 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Sun, 26 Sep 2021 12:37:17 -0400
Subject: m4/gl_warnings.m4: Update from Gnulib

4b9483219 maint: run 'make update-copyright'
85d1d48f6 Fix quoting of AC_LANG_PROGRAM arguments.
15ce5a630 Assume autoconf >= 2.64.
2cdc1bafb maint: Run 'make update-copyright'
e6633650a maint: Run 'make update-copyright'
2f494b706 warnings: Add support for Objective C.
281b825eb maint: Run 'make update-copyright'
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(limited to 'README')

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