/usr/lib/ruby/2.3.0/rubygems/ext.rb is in libruby2.3 2.3.0-5ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | # frozen_string_literal: false
#--
# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
# All rights reserved.
# See LICENSE.txt for permissions.
#++
##
# Classes for building C extensions live here.
module Gem::Ext; end
require 'rubygems/ext/build_error'
require 'rubygems/ext/builder'
require 'rubygems/ext/configure_builder'
require 'rubygems/ext/ext_conf_builder'
require 'rubygems/ext/rake_builder'
require 'rubygems/ext/cmake_builder'
|