From 1cdd35b7e81e8bee41f6bf55d3ca228aa11659a1 Mon Sep 17 00:00:00 2001
From: Adam Vandenberg <flangy@gmail.com>
Date: Sat, 17 Mar 2012 11:56:32 -0700
Subject: [PATCH] doctor: check OS version

We warn if you are not running the latest Leopard or Snow Leopard.
(We do not currently check Lion or Mountain Lion versions.)
---
 Library/Homebrew/cmd/doctor.rb | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/Library/Homebrew/cmd/doctor.rb b/Library/Homebrew/cmd/doctor.rb
index 9d4d0abe10..9b9b15256c 100644
--- a/Library/Homebrew/cmd/doctor.rb
+++ b/Library/Homebrew/cmd/doctor.rb
@@ -861,6 +861,26 @@ def check_for_unlinked_but_not_keg_only
   end
 end
 
+def check_os_version
+  if MACOS_FULL_VERSION =~ /^10\.6(\.|$)/
+    unless (MACOS_FULL_VERSION == "10.6.8")
+      return <<-EOS.undent
+        Please update Snow Leopard.
+        10.6.8 is the supported version of Snow Leopard.
+        You are still running #{MACOS_FULL_VERSION}.
+      EOS
+    end
+  elsif MACOS_FULL_VERSION =~ /^10\.5(\.|$)/
+    unless (MACOS_FULL_VERSION == "10.5.8")
+      return <<-EOS.undent
+        Please update Leopard.
+        10.5.8 is the supported version of Leopard.
+        You are still running #{MACOS_FULL_VERSION}.
+      EOS
+    end
+  end
+end
+
 end # end class Checks
 
 module Homebrew extend self