Patch to gem_plugin/lib/gem_plugin.rb to support multiple Gem paths

gem_plugin.rb

    def load(needs = {})
      sdir = File.join(Gem.dir, "specifications")	
      # Patch to support multiple Gem directories
      # gems = Gem::SourceIndex.from_installed_gems(sdir)
      gems = Gem::SourceIndex.from_installed_gems
      needs = needs.merge({"gem_plugin" => INCLUDE})

      gems.each do |path, gem|
        # don't load gems more than once
        next if @gems.has_key? gem.name        
        check = needs.dup

        # rolls through the depends and inverts anything it finds
        gem.dependencies.each do |dep|
          # this will fail if a gem is depended more than once
          if check.has_key? dep.name
            check[dep.name] = !check[dep.name]
          end
        end
        
        # now since excluded gems start as true, inverting them
        # makes them false so we'll skip this gem if any excludes are found
        if (check.select {|name,test| !test}).length == 0
          # looks like no needs were set to false, so it's good
          
          # Previously was set wrong, we already have the correct gem path!
          #gem_dir = File.join(Gem.dir, "gems", "#{gem.name}-#{gem.version}")
	  
          # Patch to support multple Gem directories, CFB
	  # gem_dir = File.join(Gem.dir, "gems", path)
          gem_dir = ""
          Gem.path.each do |gem_path|
            gem_dir = File.join(gem_path, "gems", path)
            break if File.exists?(gem_dir)
          end

          require File.join(gem_dir, "lib", gem.name, "init.rb")
          @gems[gem.name] = gem_dir
        end
      end

      return nil
    end