Use + instead of /.

Library/Homebrew/cmd/--cellar.rb

@@ -3,7 +3,7 @@ module Homebrew extend self
     if ARGV.named.empty?
       puts HOMEBREW_CELLAR
     else
-      puts ARGV.formulae.map{ |f| HOMEBREW_CELLAR/f }
+      puts ARGV.formulae.map{ |f| HOMEBREW_CELLAR+f }
     end
   end
 end

Library/Homebrew/cmd/diy.rb

@@ -21,7 +21,7 @@ module Homebrew extend self
       end
     end
 
-    prefix = HOMEBREW_CELLAR/name/version
+    prefix = HOMEBREW_CELLAR+name+version
 
     if File.file? 'CMakeLists.txt'
       puts "-DCMAKE_INSTALL_PREFIX=#{prefix}"

Library/Homebrew/cmd/edit.rb

@@ -6,14 +6,14 @@ module Homebrew extend self
       # EDITOR isn't a good fit here, we need a GUI client that actually has
       # a UI for projects, so apologies if this wasn't what you expected,
       # please improve it! :)
-      exec 'mate', HOMEBREW_REPOSITORY/"bin/brew",
-                   HOMEBREW_REPOSITORY/'README.md',
-                   HOMEBREW_REPOSITORY/".gitignore",
-              *Dir[HOMEBREW_REPOSITORY/"Library/*"]
+      exec 'mate', HOMEBREW_REPOSITORY+"bin/brew",
+                   HOMEBREW_REPOSITORY+'README.md',
+                   HOMEBREW_REPOSITORY+".gitignore",
+              *Dir[HOMEBREW_REPOSITORY+"Library/*"]
     else
       # Don't use ARGV.formulae as that will throw if the file doesn't parse
       paths = ARGV.named.map do |name|
-        HOMEBREW_REPOSITORY/"Library/Formula/#{Formula.caniconical_name name}.rb"
+        HOMEBREW_REPOSITORY+"Library/Formula/#{Formula.caniconical_name name}.rb"
       end
       unless ARGV.force?
         paths.each do |path|

Library/Homebrew/cmd/info.rb

@@ -74,7 +74,7 @@ module Homebrew extend self
 
   rescue FormulaUnavailableError
     # check for DIY installation
-    d = HOMEBREW_PREFIX/name
+    d = HOMEBREW_PREFIX+name
     if d.directory?
       ohai "DIY Installation"
       d.children.each{ |keg| puts "#{keg} (#{keg.abv})" }

Library/Homebrew/cmd/list.rb

@@ -9,7 +9,7 @@ module Homebrew extend self
       if ARGV.named.empty?
         HOMEBREW_CELLAR.children.select{ |pn| pn.directory? }
       else
-        ARGV.named.map{ |n| HOMEBREW_CELLAR/n }.select{ |pn| pn.exist? }
+        ARGV.named.map{ |n| HOMEBREW_CELLAR+n }.select{ |pn| pn.exist? }
       end.each do |d|
         versions = d.children.select{ |pn| pn.directory? }.map{ |pn| pn.basename.to_s }
         puts "#{d.basename} #{versions*' '}"

Library/Homebrew/cmd/prune.rb

@@ -7,7 +7,7 @@ module Homebrew extend self
     $d = 0
     dirs = []
 
-    %w[bin sbin etc lib include share].map{ |d| HOMEBREW_PREFIX/d }.each do |path|
+    %w[bin sbin etc lib include share].map{ |d| HOMEBREW_PREFIX+d }.each do |path|
       path.find do |path|
         path.extend ObserverPathnameExtension
         if path.symlink?

Library/Homebrew/cmd/search.rb

@@ -39,7 +39,7 @@ module Homebrew extend self
       # Filter out aliases when the full name was also found
       results.reject do |alias_name|
         if aliases.include? alias_name
-          resolved_name = (HOMEBREW_REPOSITORY/"Library/Aliases"/alias_name).readlink.basename('.rb').to_s
+          resolved_name = (HOMEBREW_REPOSITORY+"Library/Aliases"+alias_name).readlink.basename('.rb').to_s
           results.include? resolved_name
         end
       end

Library/Homebrew/compatibility.rb

@@ -54,7 +54,7 @@ class Formula
     # Don't resolve paths or URLs
     return name if name.include?("/")
 
-    aka = HOMEBREW_REPOSITORY/:Library/:Aliases/name
+    aka = HOMEBREW_REPOSITORY+"Library/Aliases"+name
     if aka.file?
       aka.realpath.basename('.rb').to_s
     else

Library/Homebrew/extend/ARGV.rb

@@ -18,7 +18,7 @@ module HomebrewArgvExtension
     require 'keg'
     require 'formula'
     @kegs ||= downcased_unique_named.collect do |name|
-      d = HOMEBREW_CELLAR/Formula.caniconical_name(name)
+      d = HOMEBREW_CELLAR+Formula.caniconical_name(name)
       dirs = d.children.select{ |pn| pn.directory? } rescue []
       raise NoSuchKegError.new(name) if not d.directory? or dirs.length == 0
       raise MultipleVersionsInstalledError.new(name) if dirs.length > 1

Library/Homebrew/formula.rb

@@ -299,8 +299,8 @@ class Formula
   end
 
   def self.caniconical_name name
-    formula_with_that_name = HOMEBREW_REPOSITORY/"Library/Formula/#{name}.rb"
-    possible_alias = HOMEBREW_REPOSITORY/"Library/Aliases"/name
+    formula_with_that_name = HOMEBREW_REPOSITORY+"Library/Formula/#{name}.rb"
+    possible_alias = HOMEBREW_REPOSITORY+"Library/Aliases"+name
     if name.include? "/"
       # Don't resolve paths or URLs
       name
@@ -365,7 +365,7 @@ class Formula
   end
 
   def self.path name
-    HOMEBREW_REPOSITORY/"Library/Formula/#{name.downcase}.rb"
+    HOMEBREW_REPOSITORY+"Library/Formula/#{name.downcase}.rb"
   end
 
   def deps

Library/Homebrew/global.rb

@@ -27,10 +27,10 @@ HOMEBREW_REPOSITORY = Pathname.new(HOMEBREW_BREW_FILE).realpath.dirname.parent #
 
 # Where we store built products; /usr/local/Cellar if it exists,
 # otherwise a Cellar relative to the Repository.
-HOMEBREW_CELLAR = if (HOMEBREW_PREFIX/"Cellar").exist?
-  HOMEBREW_PREFIX/"Cellar"
+HOMEBREW_CELLAR = if (HOMEBREW_PREFIX+"Cellar").exist?
+  HOMEBREW_PREFIX+"Cellar"
 else
-  HOMEBREW_REPOSITORY/"Cellar"
+  HOMEBREW_REPOSITORY+"Cellar"
 end
 
 MACOS_FULL_VERSION = `/usr/bin/sw_vers -productVersion`.chomp

Library/Homebrew/install.rb

@@ -167,7 +167,7 @@ def install f
     end
 
     # Check for man pages that aren't in share/man
-    if (f.prefix/:man).exist?
+    if (f.prefix+'man').exist?
       opoo 'A top-level "man" folder was found.'
       puts "Homebrew requires that man pages live under share."
       puts 'This can often be fixed by passing "--mandir=#{man}" to configure.'