--- /dev/null
+require 'rubygems'
+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