From 186a76c741a92c25d58b85d597bbb9fb5774c668 Mon Sep 17 00:00:00 2001
From: Jack Nagel <jacknagel@gmail.com>
Date: Tue, 4 Sep 2012 10:49:14 -0500
Subject: [PATCH] Fix bad install names in executables

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
---
 Library/Homebrew/keg_fix_install_names.rb | 41 +++++++++++++++--------
 1 file changed, 27 insertions(+), 14 deletions(-)

diff --git a/Library/Homebrew/keg_fix_install_names.rb b/Library/Homebrew/keg_fix_install_names.rb
index 75e1def22e..09cda18666 100644
--- a/Library/Homebrew/keg_fix_install_names.rb
+++ b/Library/Homebrew/keg_fix_install_names.rb
@@ -6,19 +6,17 @@ class Keg
           system MacOS.locate("install_name_tool"), "-id", id, file if file.dylib?
 
           bad_names.each do |bad_name|
-            new_name = bad_name
-            new_name = Pathname.new(bad_name).basename unless (file.parent + new_name).exist?
-
-            # First check to see if the dylib is present in the current
-            # directory, so we can skip the more expensive search.
-            if (file.parent + new_name).exist?
-              system MacOS.locate("install_name_tool"), "-change", bad_name, "@loader_path/#{new_name}", file
+            # If file is a dylib or bundle itself, look for the dylib named by
+            # bad_name relative to the lib directory, so that we can skip the more
+            # expensive recursive search if possible.
+            if file.dylib? or file.mach_o_bundle? and (file.parent + bad_name).exist?
+              system MacOS.locate("install_name_tool"), "-change", bad_name, "@loader_path/#{bad_name}", file
+            elsif file.mach_o_executable? and (lib/bad_name).exist?
+              system MacOS.locate("install_name_tool"), "-change", bad_name, "#{lib}/#{bad_name}", file
             else
-              # Otherwise, try and locate the appropriate dylib by walking
-              # the entire 'lib' tree recursively.
-              abs_name = (self+'lib').find do |pn|
-                break pn if pn.basename == Pathname.new(new_name)
-              end
+              # Otherwise, try and locate the dylib by walking the entire
+              # lib tree recursively.
+              abs_name = find_dylib(Pathname.new(bad_name).basename)
 
               if abs_name and abs_name.exist?
                 system MacOS.locate("install_name_tool"), "-change", bad_name, abs_name, file
@@ -36,6 +34,8 @@ class Keg
 
   OTOOL_RX = /\t(.*) \(compatibility version (\d+\.)*\d+, current version (\d+\.)*\d+\)/
 
+  def lib; join 'lib' end
+
   def bad_install_names_for file
     ENV['HOMEBREW_MACH_O_FILE'] = file.to_s # solves all shell escaping problems
     install_names = `#{MacOS.locate("otool")} -L "$HOMEBREW_MACH_O_FILE"`.split "\n"
@@ -43,8 +43,8 @@ class Keg
     install_names.shift # first line is fluff
     install_names.map!{ |s| OTOOL_RX =~ s && $1 }
 
-    # Bundles don't have an ID
-    id = install_names.shift unless file.mach_o_bundle?
+    # Bundles and executables do not have an ID
+    id = install_names.shift if file.dylib?
 
     install_names.compact!
     install_names.reject!{ |fn| fn =~ /^@(loader|executable)_path/ }
@@ -67,6 +67,12 @@ class Keg
     yield id, install_names
   end
 
+  def find_dylib name
+    (join 'lib').find do |pn|
+      break pn if pn.basename == Pathname.new(name)
+    end
+  end
+
   def mach_o_files
     mach_o_files = []
     if (lib = join 'lib').directory?
@@ -75,6 +81,13 @@ class Keg
         mach_o_files << pn if pn.dylib? or pn.mach_o_bundle?
       end
     end
+
+    if (bin = join 'bin').directory?
+      bin.find do |pn|
+        next if pn.symlink? or pn.directory?
+        mach_o_files << pn if pn.mach_o_executable?
+      end
+    end
     mach_o_files
   end
 end