From 2a5aee0a0b98f40d6936d124c67cc3ec33d6ee03 Mon Sep 17 00:00:00 2001
From: Chongyu Zhu <i@lembacon.com>
Date: Tue, 4 Jun 2019 16:11:18 -0700
Subject: [PATCH] xcode: add initial support for Xcode 11.0

---
 Library/Homebrew/os/mac.rb       | 3 ++-
 Library/Homebrew/os/mac/xcode.rb | 9 +++++++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/Library/Homebrew/os/mac.rb b/Library/Homebrew/os/mac.rb
index c1dade5bbfb5a..ab2b6830984a5 100644
--- a/Library/Homebrew/os/mac.rb
+++ b/Library/Homebrew/os/mac.rb
@@ -37,7 +37,7 @@ def full_version=(version)
 
     def latest_sdk_version
       # TODO: bump version when new Xcode macOS SDK is released
-      Version.new "10.14"
+      Version.new "10.15"
     end
 
     def latest_stable_version
@@ -208,6 +208,7 @@ def preferred_arch
       "10.1"   => { clang: "10.0", clang_build: 1000 },
       "10.2"   => { clang: "10.0", clang_build: 1001 },
       "10.2.1" => { clang: "10.0", clang_build: 1001 },
+      "11.0"   => { clang: "11.0", clang_build: 1100 },
     }.freeze
 
     def compilers_standard?
diff --git a/Library/Homebrew/os/mac/xcode.rb b/Library/Homebrew/os/mac/xcode.rb
index 32efc86394a22..5f35f45bc52fa 100644
--- a/Library/Homebrew/os/mac/xcode.rb
+++ b/Library/Homebrew/os/mac/xcode.rb
@@ -17,16 +17,18 @@ def latest_version
         when "10.12" then "9.2"
         when "10.13" then "10.1"
         when "10.14" then "10.2.1"
+        when "10.15" then "11.0"
         else
           raise "macOS '#{MacOS.version}' is invalid" unless OS::Mac.prerelease?
 
           # Default to newest known version of Xcode for unreleased macOS versions.
-          "10.2.1"
+          "11.0"
         end
       end
 
       def minimum_version
         case MacOS.version
+        when "10.15" then "11.0"
         when "10.14" then "10.2"
         when "10.13" then "9.0"
         when "10.12" then "8.0"
@@ -174,7 +176,8 @@ def detect_version_from_clang_version
         when 90      then "9.2"
         when 91      then "9.4"
         when 100     then "10.2.1"
-        else              "10.2.1"
+        when 110     then "11.0"
+        else              "11.0"
         end
       end
 
@@ -242,6 +245,7 @@ def latest_version
         # on the older supported platform for that Xcode release, i.e there's no
         # CLT package for 10.11 that contains the Clang version from Xcode 8.
         case MacOS.version
+        when "10.15" then "1100.0.20.17"
         when "10.14" then "1001.0.46.4"
         when "10.13" then "1000.10.44.2"
         when "10.12" then "900.0.39.2"
@@ -253,6 +257,7 @@ def latest_version
 
       def minimum_version
         case MacOS.version
+        when "10.15" then "11.0.0"
         when "10.14" then "10.0.0"
         when "10.13" then "9.0.0"
         when "10.12" then "8.0.0"