From 4f8a75157929f7141ee6fe3ce2b98eabbdc7b0fe Mon Sep 17 00:00:00 2001
From: Misty De Meo <mistydemeo@gmail.com>
Date: Thu, 26 Jul 2018 17:56:47 -0700
Subject: [PATCH] SDK: allow finding CLT SDK path where present

---
 Library/Homebrew/os/mac/sdk.rb   | 2 +-
 Library/Homebrew/os/mac/xcode.rb | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/os/mac/sdk.rb b/Library/Homebrew/os/mac/sdk.rb
index 5060b7807c..3da35cc7ae 100644
--- a/Library/Homebrew/os/mac/sdk.rb
+++ b/Library/Homebrew/os/mac/sdk.rb
@@ -82,7 +82,7 @@ module OS
       # return nil SDKs for Xcode 9 and older.
       def sdk_prefix
         @sdk_prefix ||= begin
-          if !CLT.separate_header_package?
+          if !CLT.provides_sdk?
             ""
           else
             "#{CLT::PKG_PATH}/SDKs"
diff --git a/Library/Homebrew/os/mac/xcode.rb b/Library/Homebrew/os/mac/xcode.rb
index 8799de22ae..b1b25a60b9 100644
--- a/Library/Homebrew/os/mac/xcode.rb
+++ b/Library/Homebrew/os/mac/xcode.rb
@@ -214,6 +214,10 @@ module OS
         version >= "10"
       end
 
+      def provides_sdk?
+        version >= "8"
+      end
+
       def headers_installed?
         if !separate_header_package?
           installed?