Update Xcode version checks

Closes Homebrew/homebrew#11044.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

1 files changed, 5 insertions, 15 deletions

diff --git a/Library/Homebrew/cmd/install.rb b/Library/Homebrew/cmd/install.rb
index bfc5d3e7b..e4ffe3268 100644
--- a/Library/Homebrew/cmd/install.rb
+++ b/Library/Homebrew/cmd/install.rb
@@ -34,20 +34,10 @@ module Homebrew extend self
     raise "Cannot write to #{HOMEBREW_PREFIX}" unless HOMEBREW_PREFIX.writable? or HOMEBREW_PREFIX.to_s == '/usr/local'
   end
 
-  def check_cc
-    if MacOS.snow_leopard?
-      if MacOS.llvm_build_version < RECOMMENDED_LLVM
-        opoo "You should upgrade to Xcode 3.2.6"
-      end
-    else
-      if (MacOS.gcc_40_build_version < RECOMMENDED_GCC_40) or (MacOS.gcc_42_build_version < RECOMMENDED_GCC_42)
-        opoo "You should upgrade to Xcode 3.1.4"
-      end
-    end
-  rescue
-    # the reason we don't abort is some formula don't require Xcode
-    # TODO allow formula to declare themselves as "not needing Xcode"
-    opoo "Xcode is not installed! Builds may fail!"
+  def check_xcode
+    require 'cmd/doctor'
+    xcode = Checks.new.check_for_latest_xcode
+    opoo xcode unless xcode.nil?
   end
 
   def check_macports
@@ -70,7 +60,7 @@ module Homebrew extend self
   def perform_preinstall_checks
     check_ppc
     check_writable_install_location
-    check_cc
+    check_xcode
     check_macports
     check_cellar
   end