From 6e1450e974803e4b7c61f91d03fb55d5de416232 Mon Sep 17 00:00:00 2001
From: Jack Nagel <jacknagel@gmail.com>
Date: Sun, 15 Jun 2014 18:27:37 -0500
Subject: [PATCH] Handle illegal constant names when fetching remote formulae

---
 Library/Homebrew/formulary.rb | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/formulary.rb b/Library/Homebrew/formulary.rb
index 31a7fd51ec..da64a43e51 100644
--- a/Library/Homebrew/formulary.rb
+++ b/Library/Homebrew/formulary.rb
@@ -141,7 +141,13 @@ class Formulary
 
     # Downloads the formula's .rb file
     def fetch
-      unless Formulary.formula_class_defined? class_name
+      begin
+        have_klass = Formulary.formula_class_defined? class_name
+      rescue NameError
+        raise FormulaUnavailableError.new(name)
+      end
+
+      unless have_klass
         HOMEBREW_CACHE_FORMULA.mkpath
         FileUtils.rm path.to_s, :force => true
         curl url, '-o', path.to_s