Merge pull request #965 from mistydemeo/warn_xcode_8_without_clt

Warn when using Xcode 8 without CLT on 10.11

1 files changed, 14 insertions, 0 deletions

diff --git a/Library/Homebrew/extend/os/mac/diagnostic.rb b/Library/Homebrew/extend/os/mac/diagnostic.rb
index 7fb13af85..f8d6c9e1f 100644
--- a/Library/Homebrew/extend/os/mac/diagnostic.rb
+++ b/Library/Homebrew/extend/os/mac/diagnostic.rb
@@ -9,6 +9,7 @@ module Homebrew
           check_for_installed_developer_tools
           check_xcode_license_approved
           check_for_osx_gcc_installer
+          check_xcode_8_without_clt_on_el_capitan
         ]
       end
 
@@ -90,6 +91,19 @@ module Homebrew
         EOS
       end
 
+      def check_xcode_8_without_clt_on_el_capitan
+        return unless MacOS::Xcode.without_clt?
+        # Scope this to Xcode 8 on El Cap for now
+        return unless MacOS.version == :el_capitan && MacOS::Xcode.version >= "8"
+
+        <<-EOS.undent
+          You have Xcode 8 installed without the CLT;
+          this causes certain builds to fail on OS X 10.11.
+          Please install the CLT via:
+            sudo xcode-select --install
+        EOS
+      end
+
       def check_for_osx_gcc_installer
         return unless MacOS.version < "10.7" || ((MacOS::Xcode.version || "0") > "4.1")
         return unless DevelopmentTools.clang_version == "2.1"