From 8035afcc36ac45ebd127f670b13ab32414c310fa Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Wed, 25 Apr 2018 12:08:33 +0100
Subject: [PATCH] linkage_checker: fix generic pathname calls.

---
 Library/Homebrew/extend/pathname.rb | 8 ++++++++
 Library/Homebrew/linkage_checker.rb | 2 +-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/extend/pathname.rb b/Library/Homebrew/extend/pathname.rb
index ec7293496e..dfe24b7886 100644
--- a/Library/Homebrew/extend/pathname.rb
+++ b/Library/Homebrew/extend/pathname.rb
@@ -472,9 +472,17 @@ class Pathname
     }
   end
 
+  def binary_executable?
+    false
+  end
+
   def mach_o_bundle?
     false
   end
+
+  def dylib?
+    false
+  end
 end
 
 require "extend/os/pathname"
diff --git a/Library/Homebrew/linkage_checker.rb b/Library/Homebrew/linkage_checker.rb
index 85bb003a3f..bf390c4270 100644
--- a/Library/Homebrew/linkage_checker.rb
+++ b/Library/Homebrew/linkage_checker.rb
@@ -66,7 +66,7 @@ class LinkageChecker
     checked_dylibs = Set.new
     @keg.find do |file|
       next if file.symlink? || file.directory?
-      next unless file.dylib? || file.binary_executable? || file.mach_o_bundle?
+      next if !file.dylib? && !file.binary_executable? && !file.mach_o_bundle?
 
       # weakly loaded dylibs may not actually exist on disk, so skip them
       # when checking for broken linkage