From d6a94eb4528e900fa0dd7a2c4309eb5cbeeb3ef6 Mon Sep 17 00:00:00 2001
From: Jack Nagel
Date: Sat, 30 Nov 2013 19:38:48 -0600
Subject: Skip path replacement when it would be a no-op

---
 Library/Homebrew/keg_fix_install_names.rb | 1 +
 1 file changed, 1 insertion(+)

(limited to 'Library/Homebrew')

diff --git a/Library/Homebrew/keg_fix_install_names.rb b/Library/Homebrew/keg_fix_install_names.rb
index e60ba72f1..2d79e9180 100644
--- a/Library/Homebrew/keg_fix_install_names.rb
+++ b/Library/Homebrew/keg_fix_install_names.rb
@@ -64,6 +64,7 @@ class Keg
   #   some_variable="/opt/homebrew/Cellar/foo/1.0/lib"
   # and add quotes to protect against paths containing spaces.
   def replace_pkgconfig_file_path(s, old, new)
+    return if old == new
     s.gsub!(%r[([\S]+)="?#{Regexp.escape(old)}(.*?)"?$], "\\1=\"#{new}\\2\"")
   end
 
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