##
  # Adds a development dependency named +gem+ with +requirements+ to this
  # Gem.  For example:
  #
  #   spec.add_development_dependency 'jabber4r', '> 0.1', '<= 0.5'
  #
  # Development dependencies aren't installed by default and aren't
  # activated when a gem is required.

  def add_development_dependency(gem, *requirements)
    add_dependency_with_type(gem, :development, *requirements)
  end

  ##
  # Adds a runtime dependency named +gem+ with +requirements+ to this Gem.
  # For example:
  #
  #   spec.add_runtime_dependency 'jabber4r', '> 0.1', '<= 0.5'

  def add_runtime_dependency(gem, *requirements)
    add_dependency_with_type(gem, :runtime, *requirements)
  end

  ##
  # Adds a runtime dependency

  alias add_dependency add_runtime_dependency