updates to make the executable a little more aware of what it needs

bin/cider

@@ -10,6 +10,29 @@ ENV['EMAIL']    ||= 'noreploy@gmail.com'
 ENV['EDITOR']   ||= 'vim'
 ENV['FULLNAME'] ||= 'Marlon Brando'
 
+RECOMMENDED_LLVM   = 2206
+MACOS_FULL_VERSION = `/usr/bin/sw_vers -productVersion`.chomp
+MACOS_VERSION      = /(10\.\d+)(\.\d+)?/.match(MACOS_FULL_VERSION).captures.first.to_f
+
+if MACOS_VERSION >= 10.6
+  begin
+    xcode_path = `/usr/bin/xcode-select -print-path`.chomp
+    return nil if xcode_path.empty?
+    if `#{xcode_path}/usr/bin/llvm-gcc-4.2 -v 2>&1` =~ /LLVM build (\d{4,})/
+      if $1.to_i < RECOMMENDED_LLVM
+        $stderr.puts "You should really upgrade your xcode install"
+      end
+    end
+  rescue
+    $stderr.puts "You need xcode for this to work :\\"
+    exit(1)
+  end
+else
+  $stderr.puts "You should really upgrade to snow leopard"
+  $stderr.puts "Make sure you have xcode installed and cross your fingers"
+  $stderr.puts "I've seen it work on leopard though..."
+end
+
 Cider::Runner.run
 
 # vim:ft=ruby

lib/cider.rb

@@ -11,6 +11,7 @@ def self.run
     def run
       system("rm -rf ~/.cider")
       system("chef-solo -c #{config}")
+      exit($?)
     end
 
     def config