Add keg-only reason symbols for Xcode 4.3 and Xcode 5

Closes Homebrew/homebrew#28095.

1 files changed, 8 insertions, 0 deletions

diff --git a/Library/Homebrew/formula_support.rb b/Library/Homebrew/formula_support.rb
index 7efda3564..587a5f3ce 100644
--- a/Library/Homebrew/formula_support.rb
+++ b/Library/Homebrew/formula_support.rb
@@ -14,6 +14,10 @@ class KegOnlyReason
     case @reason
     when :provided_pre_mountain_lion
       MacOS.version < :mountain_lion
+    when :provided_until_xcode43
+      MacOS::Xcode.version < "4.3"
+    when :provided_until_xcode5
+      MacOS::Xcode.version < "5.0"
     else
       true
     end
@@ -32,6 +36,10 @@ class KegOnlyReason
 
       #{@explanation}
       EOS
+    when :provided_until_xcode43
+      "Xcode provides this software prior to version 4.3.\n\n#{explanation}"
+    when :provided_until_xcode5
+      "Xcode provides this software prior to version 5.\n\n#{explanation}"
     else
       @reason
     end.strip