From 9134718f9caca3b029e8cc538497fd8a61b77551 Mon Sep 17 00:00:00 2001
From: "Tim D. Smith" <git@tim-smith.us>
Date: Wed, 1 Oct 2014 18:40:04 -0700
Subject: [PATCH] =?UTF-8?q?Audit=20formul=C3=A6=20for=20easy-install.pth?=
 =?UTF-8?q?=20files?=
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Closes Homebrew/homebrew#32860.
---
 Library/Homebrew/cmd/audit.rb             |  1 +
 Library/Homebrew/formula_cellar_checks.rb | 13 +++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/Library/Homebrew/cmd/audit.rb b/Library/Homebrew/cmd/audit.rb
index cbfb67dced..e7e3868a4b 100644
--- a/Library/Homebrew/cmd/audit.rb
+++ b/Library/Homebrew/cmd/audit.rb
@@ -568,6 +568,7 @@ class FormulaAuditor
     audit_check_output(check_non_executables(f.sbin))
     audit_check_output(check_generic_executables(f.sbin))
     audit_check_output(check_shadowed_headers)
+    audit_check_output(check_easy_install_pth(f.lib))
   end
 
   def audit
diff --git a/Library/Homebrew/formula_cellar_checks.rb b/Library/Homebrew/formula_cellar_checks.rb
index f639c20461..372fcca87f 100644
--- a/Library/Homebrew/formula_cellar_checks.rb
+++ b/Library/Homebrew/formula_cellar_checks.rb
@@ -120,6 +120,19 @@ module FormulaCellarChecks
      "The offending files are:  \n  #{files * "\n  "}"]
   end
 
+  def check_easy_install_pth lib
+    pth_found = Dir["#{lib}/python{2.7,3.4}/site-packages/easy-install.pth"].map { |f| File.dirname(f) }
+    return if pth_found.empty?
+
+    ["easy-install.pth files were found in #{pth_found.join(", ")}.",
+      <<-EOS.undent
+        These .pth files are likely to cause link conflicts. Please
+        invoke setup.py with options --single-version-externally-managed
+        --record=install.txt.
+      EOS
+    ]
+  end
+
   private
 
   def relative_glob(dir, pattern)