https://git.ruby-lang.org/ruby.git/commit/?id=9de11fe796

From 9de11fe796e8caca2d87650278028eb95c1e09a0 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Tue, 20 Sep 2022 12:54:08 +0900
Subject: Quiet if the target is already linked the same source

---
 ext/extmk.rb  | 2 +-
 tool/ln_sr.rb | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/ext/extmk.rb b/ext/extmk.rb
index 40fc10ea1c..939eb73565 100755
--- a/ext/extmk.rb
+++ b/ext/extmk.rb
@@ -607,7 +607,7 @@ CP_R = #{config_string('CP')} -r https://github.com/ruby/ruby/blob/trunk/ext/extmk.rb#L607
 
 gemlib = $(TARGET_TOPDIR)/gems/$(gem)/lib
 gemlib:#{%{ $(gemlib)\n$(gemlib): $(gem_srcdir)/lib} if $nmake}
-	$(Q) #{@inplace ? '$(NULLCMD) ' : ''}$(RUBY) $(top_srcdir)/tool/ln_sr.rb -f -T $(gem_srcdir)/lib $(gemlib)
+	$(Q) #{@inplace ? '$(NULLCMD) ' : ''}$(RUBY) $(top_srcdir)/tool/ln_sr.rb -q -f -T $(gem_srcdir)/lib $(gemlib)
 
 clean-gemlib:
 	$(Q) $(#{@inplace ? 'NULLCMD' : 'RM_RF'}) $(gemlib)
diff --git a/tool/ln_sr.rb b/tool/ln_sr.rb
index 81fd803355..2aa8391e17 100755
--- a/tool/ln_sr.rb
+++ b/tool/ln_sr.rb
@@ -3,6 +3,7 @@ https://github.com/ruby/ruby/blob/trunk/tool/ln_sr.rb#L3
 target_directory = true
 noop = false
 force = false
+quiet = false
 
 until ARGV.empty?
   case ARGV[0]
@@ -12,6 +13,8 @@ until ARGV.empty? https://github.com/ruby/ruby/blob/trunk/tool/ln_sr.rb#L13
     force = true
   when '-T'
     target_directory = false
+  when '-q'
+    quiet = true
   else
     break
   end
@@ -114,6 +117,9 @@ unless respond_to?(:ln_sr) https://github.com/ruby/ruby/blob/trunk/tool/ln_sr.rb#L117
 end
 
 if File.respond_to?(:symlink)
+  if quiet and File.identical?(src, dest)
+    exit
+  end
   begin
     ln_sr(src, dest, verbose: true, target_directory: target_directory, force: force, noop: noop)
   rescue NotImplementedError, Errno::EPERM, Errno::EACCES
-- 
cgit v1.2.1


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