https://git.ruby-lang.org/ruby.git/commit/?id=227220b25a

From 227220b25aad9841eb979c18a0251b71de824e88 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Sat, 10 Aug 2019 00:02:17 +0900
Subject: Skip dependencies on timestamp files


diff --git a/tool/update-deps b/tool/update-deps
index 4aaf812..45cf5b9 100755
--- a/tool/update-deps
+++ b/tool/update-deps
@@ -300,6 +300,7 @@ def read_make_deps(cwd) https://github.com/ruby/ruby/blob/trunk/tool/update-deps#L300
       target = rule_target
       deps = rule_sources
       deps = deps.scan(%r{[/0-9a-zA-Z._-]+})
+      deps.delete_if {|dep| /\.time\z/ =~ dep} # skip timestamp
       next if /\.o\z/ !~ target.to_s
       next if /\A\./ =~ target.to_s # skip rules such as ".c.o"
       #p [curdir, target, deps]
-- 
cgit v0.10.2


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