From 525e5f791f992556b9ffbe0b0f4b61c44a94d3b6 Mon Sep 17 00:00:00 2001
From: Jack Nagel <jacknagel@gmail.com>
Date: Fri, 1 Aug 2014 20:15:57 -0500
Subject: [PATCH] Remove knowledge of DSL implementation from initialize

---
 Library/Homebrew/compilers.rb | 27 +++++++++++++++++----------
 Library/Homebrew/formula.rb   |  4 ++--
 2 files changed, 19 insertions(+), 12 deletions(-)

diff --git a/Library/Homebrew/compilers.rb b/Library/Homebrew/compilers.rb
index eb861f38ac..6f329d380b 100644
--- a/Library/Homebrew/compilers.rb
+++ b/Library/Homebrew/compilers.rb
@@ -49,20 +49,27 @@ class CompilerFailure
     end
   end
 
-  def initialize compiler, &block
-    instance_eval(&block) if block_given?
+  def self.create(spec, &block)
     # Non-Apple compilers are in the format fails_with compiler => version
-    if compiler.is_a? Hash
-      # currently the only compiler for this case is GCC
-      _, @major_version = compiler.first
-      @compiler = 'gcc-' + @major_version
+    if spec.is_a?(Hash)
+      _, major_version = spec.first
+      compiler = "gcc-#{major_version}"
       # so fails_with :gcc => '4.8' simply marks all 4.8 releases incompatible
-      @version ||= @major_version + '.999'
+      version = "#{major_version}.999"
     else
-      @compiler = compiler
-      @version ||= 9999
-      @version = @version.to_i
+      compiler = spec
+      version = 9999
+      major_version = nil
     end
+
+    new(compiler, version, major_version, &block)
+  end
+
+  def initialize(compiler, version, major_version, &block)
+    @compiler = compiler
+    @version = version
+    @major_version = major_version
+    instance_eval(&block) if block_given?
   end
 end
 
diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index 6907406b55..fcad7ed54a 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -745,9 +745,9 @@ class Formula
     # fails_with :gcc => '4.8' do
     #   version '4.8.1'
     # end
-    def fails_with compiler, &block
+    def fails_with spec, &block
       @cc_failures ||= Set.new
-      @cc_failures << CompilerFailure.new(compiler, &block)
+      @cc_failures << CompilerFailure.create(spec, &block)
     end
 
     def needs *standards