Fix detecting CLT installation

1 files changed, 3 insertions, 1 deletions

diff --git a/install b/install
index 647cda6a0..5d026cd09 100644
--- a/install
+++ b/install
@@ -153,7 +153,9 @@ warn "/usr/local/bin is not in your PATH." unless ENV['PATH'].split(':').include
 if macos_version < 10.7
   warn "Now install Xcode: https://developer.apple.com/xcode/" unless File.exist? "/usr/bin/cc"
 else
-  warn "Now install the \"Command Line Tools for Xcode\": http://connect.apple.com" unless File.file? "/usr/bin/xcrun"
+  `/usr/bin/cc --version 2> /dev/null` =~ %r{tags/Apple/clang-(\d+)}
+  version = $1.to_i
+  warn %{Install the "Command Line Tools for Xcode": http://connect.apple.com} if version < 421
 end
 
 ohai "Installation successful!"