1 files changed, 17 insertions, 2 deletions
diff --git a/lib/rubygems/custom_require.rb b/lib/rubygems/custom_require.rb
index 88e7aa4c4c..ebe7b05558 100644
--- a/lib/rubygems/custom_require.rb
+++ b/lib/rubygems/custom_require.rb
@@ -31,8 +31,23 @@ module Kernel
   # The normal <tt>require</tt> functionality of returning false if
   # that file has already been loaded is preserved.
 
-  def require(path) # :doc:
-    gem_original_require path
+  def require path
+    if Gem.unresolved_deps.empty? or Gem.loaded_path? path then
+      gem_original_require path
+    else
+      specs = Gem.searcher.find_in_unresolved path
+      unless specs.empty? then
+        specs = [specs.last]
+      else
+        specs = Gem.searcher.find_in_unresolved_tree path
+      end
+
+      specs.each do |spec|
+        Gem.activate spec.name, spec.version # FIX: this is dumb
+      end
+
+      return gem_original_require path
+    end
   rescue LoadError => load_error
     if load_error.message.end_with?(path) and Gem.try_activate(path) then
       return gem_original_require(path)