Move option comparison into BuildOptions

Library/Homebrew/bottles.rb

@@ -15,7 +15,7 @@ def install_bottle? f
     and f.downloader.local_bottle_path
   not ARGV.build_from_source? \
     and MacOS.bottles_supported? \
-    and ARGV.used_options(f).empty? \
+    and f.build.used_options.empty? \
     and bottle_current?(f)
 end
 

Library/Homebrew/extend/ARGV.rb

@@ -7,14 +7,6 @@ module HomebrewArgvExtension
     select {|arg| arg[0..0] == '-'}
   end
 
-  def used_options f
-    f.build.as_flags & options_only
-  end
-
-  def unused_options f
-    f.build.as_flags - options_only
-  end
-
   def formulae
     require 'formula'
     @formulae ||= downcased_unique_named.map{ |name| Formula.factory name }

Library/Homebrew/formula_support.rb

@@ -185,6 +185,7 @@ end
 # This class holds the build-time options defined for a Formula,
 # and provides named access to those options during install.
 class BuildOptions
+  attr_writer :args
   include Enumerable
 
   def initialize args
@@ -253,4 +254,12 @@ class BuildOptions
   def build_32_bit?
     @args.include? '--32-bit'
   end
+
+  def used_options
+    as_flags & @args.options_only
+  end
+
+  def unused_options
+    as_flags - @args.options_only
+  end
 end

Library/Homebrew/tab.rb

@@ -10,14 +10,16 @@ class Tab < OpenStruct
   FILENAME = 'INSTALL_RECEIPT.json'
 
   def self.create f, args
+    f.build.args = args
+
     sha = HOMEBREW_REPOSITORY.cd do
       `git rev-parse --verify -q HEAD 2>/dev/null`.chuzzle
     end
 
-    Tab.new :used_options => args.used_options(f),
-            :unused_options => args.unused_options(f),
+    Tab.new :used_options => f.build.used_options,
+            :unused_options => f.build.unused_options,
             :tabfile => f.prefix.join(FILENAME),
-            :built_as_bottle => !!args.build_bottle?,
+            :built_as_bottle => !!ARGV.build_bottle?,
             :tapped_from => f.tap,
             :time => Time.now.to_i, # to_s would be better but Ruby has no from_s function :P
             :HEAD => sha