From f7f200591c1ce91f4f4ddee1a76b7e1e5d16a453 Mon Sep 17 00:00:00 2001
From: Jack Nagel <jacknagel@gmail.com>
Date: Sat, 5 Apr 2014 23:07:28 -0500
Subject: [PATCH] Fall back to open/write when atomic_write fails

Fixes Homebrew/homebrew#28190.
---
 Library/Homebrew/keg_fix_install_names.rb | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/Library/Homebrew/keg_fix_install_names.rb b/Library/Homebrew/keg_fix_install_names.rb
index 083afabff0..efc1bd48c4 100644
--- a/Library/Homebrew/keg_fix_install_names.rb
+++ b/Library/Homebrew/keg_fix_install_names.rb
@@ -45,10 +45,15 @@ class Keg < Pathname
       changed = s.gsub!(old_cellar, new_cellar)
       changed = s.gsub!(old_prefix, new_prefix) || changed
 
-      if changed
+      begin
         first.atomic_write(s)
+      rescue Errno::EACCES
+        first.ensure_writable do
+          first.open("wb") { |f| f.write(s) }
+        end
+      else
         rest.each { |file| FileUtils.ln(first, file, :force => true) }
-      end
+      end if changed
     end
   end