def process_options
@options = {
:bin_dir => nil,
:env_shebang => false,
:exec_format => false,
:force => false,
:install_dir => Gem.dir,
}.merge options
@env_shebang = options[:env_shebang]
@force = options[:force]
@gem_home = options[:install_dir]
@ignore_dependencies = options[:ignore_dependencies]
@format_executable = options[:format_executable]
@security_policy = options[:security_policy]
@wrappers = options[:wrappers]
@bin_dir = options[:bin_dir]
@development = options[:development]
raise "NOTE: Installer option :source_index is dead" if
options[:source_index]
end