require 'rubygems' if RUBY_VERSION < '1.9'
require 'rake'
require 'rake/builder'

Rake::Builder.new do |builder|
  builder.target               = 'foo/target_1'
  builder.objects_path         = 'foo/objects'
  builder.programming_language = 'c'
end

Rake::Builder.new do |builder|
  builder.target               = 'bar/target_2'
  builder.objects_path         = 'bar/objects'
  builder.programming_language = 'c'
end