diff --git a/railties/CHANGELOG b/railties/CHANGELOG
index dfa80e1e82..0a3c34dbd7 100644
--- a/railties/CHANGELOG
+++ b/railties/CHANGELOG
@@ -1,6 +1,6 @@
 *SVN*
 
-* Flesh out rake gems:unpack to unpack all gems, and add rake gems:build for native extensions.  [ddollar]
+* Flesh out rake gems:unpack to unpack all gems, and add rake gems:build for native extensions. #11513 [ddollar]
 
   rake gems:unpack             # unpacks all gems
   rake gems:unpack GEM=mygem   # unpacks only the gem 'mygem'
diff --git a/railties/lib/rails/gem_builder.rb b/railties/lib/rails/gem_builder.rb
new file mode 100644
index 0000000000..629726a5c6
--- /dev/null
+++ b/railties/lib/rails/gem_builder.rb
@@ -0,0 +1,20 @@
+require 'rubygems/installer'
+
+module Rails
+  
+  # this class hijacks the functionality of Gem::Installer by overloading its 
+  # initializer to only provide the information needed by 
+  # Gem::Installer#build_extensions (which happens to be what we have)
+  class GemBuilder < Gem::Installer
+
+    def initialize(spec, gem_dir)
+      @spec    = spec
+      @gem_dir = gem_dir
+    end
+    
+    # silence the underlying builder
+    def say(message)
+    end
+    
+  end
+end
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