From efce8539b2d3c1211ef18ac8f020b2ae36e255ab Mon Sep 17 00:00:00 2001
From: Jacob Bachmeyer <jcb@gnu.org>
Date: Tue, 7 Feb 2023 22:42:59 -0600
Subject: Gracefully degrade if Time::HiRes is not available

Copyright-paperwork-exempt: yes
---
 lib/Automake/FileUtils.pm | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/Automake/FileUtils.pm b/lib/Automake/FileUtils.pm
index 697ff7e63..8d0b36802 100644
--- a/lib/Automake/FileUtils.pm
+++ b/lib/Automake/FileUtils.pm
@@ -39,9 +39,12 @@ use strict;
 use warnings FATAL => 'all';
 
 use Exporter;
-use Time::HiRes qw(stat);
 use IO::File;
 
+# use sub-second resolution timestamps if available,
+# carry on with one-second resolution timestamps if that is all we have
+BEGIN { eval { require Time::HiRes; import Time::HiRes qw(stat) } }
+
 use Automake::Channels;
 use Automake::ChannelDefs;
 
-- 
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