wil_paginate_fundation.rb

module WillPaginate
  module ActionView
    def will_paginate(collection = nil, options = {})
      options[:renderer] ||= FoundationLinkRenderer
      super.try :html_safe
    end

    class FoundationLinkRenderer < LinkRenderer
      protected

      def html_container(html)
        tag(:ul, html, container_attributes)
      end

      def page_number(page)
        tag :li, link(page, page, rel: rel_value(page)), class: ('current' if page == current_page)
      end

      def gap
        tag :li, link(super, '#'), class: 'unavailable'
      end

      def previous_or_next_page(page, text, classname)
        tag :li, link(text, page || '#'), class: [classname[0..3], classname, ('unavailable' unless page)].join(' ')
      end
    end
  end
end

For this to work it with lib autoload this must be presently exactly under this path.
/lib/will_paginate/view_helpers/foundation_link_renderer.rb

and add this to application.rb config.autoload_paths += Dir["#{config.root}/lib/**/"] which recursively loads all ruby files under lib.

If this is not done properly we get "uninitialized constant ActionView::CompiledTemplates"