From 4a948c413248dcb13fe25902c55755b66d07d833 Mon Sep 17 00:00:00 2001
From: Adam Vandenberg
Date: Thu, 12 Jul 2012 07:08:23 -0700
Subject: Add special :xcode dependency

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
---
 Library/Homebrew/dependencies.rb | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'Library')

diff --git a/Library/Homebrew/dependencies.rb b/Library/Homebrew/dependencies.rb
index 44584242a..43d77f531 100644
--- a/Library/Homebrew/dependencies.rb
+++ b/Library/Homebrew/dependencies.rb
@@ -70,6 +70,8 @@ private
       end
     when :x11
       X11Dependency.new(tag)
+    when :xcode
+      XCodeDependency.new
     else
       raise "Unsupported special dependency #{spec}"
     end
@@ -322,3 +324,16 @@ class ConflictRequirement < Requirement
     not ARGV.force?
   end
 end
+
+class XCodeDependency < Requirement
+  def fatal?; true; end
+
+  def satisfied?
+    MacOS::Xcode.installed?
+  end
+
+  def message; <<-EOS.undent
+    XCode is required to compile this software.
+    EOS
+  end
+end
-- 
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