phantomjs: Yosemite fixes.

Closes Homebrew/homebrew#32953.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/Library/Homebrew/requirements/maximum_macos_requirement.rb b/Library/Homebrew/requirements/maximum_macos_requirement.rb
new file mode 100644
index 000000000..5efba641e
--- /dev/null
+++ b/Library/Homebrew/requirements/maximum_macos_requirement.rb
@@ -0,0 +1,19 @@
+require 'requirement'
+
+class MaximumMacOSRequirement < Requirement
+  fatal true
+
+  def initialize(tags)
+    @version = MacOS::Version.from_symbol(tags.first)
+    super
+  end
+
+  satisfy { MacOS.version <= @version }
+
+  def message
+    <<-EOS.undent
+      OS X #{@version.pretty_name} or older is required for stable.
+      Use `brew install devel or --HEAD` for newer.
+    EOS
+  end
+end