Gem::Ext::Builder

    # File lib/rubygems/ext/builder.rb, line 9
 9:   def self.class_name
10:     name =~ /Ext::(.*)Builder/
11:     $1.downcase
12:   end

    # File lib/rubygems/ext/builder.rb, line 14
14:   def self.make(dest_path, results)
15:     unless File.exist? 'Makefile' then
16:       raise Gem::InstallError, "Makefile not found:\n\n#{results.join "\n"}"
17:     end
18: 
19:     mf = File.read('Makefile')
20:     mf = mf.gsub(/^RUBYARCHDIR\s*=\s*\$[^$]*/, "RUBYARCHDIR = #{dest_path}")
21:     mf = mf.gsub(/^RUBYLIBDIR\s*=\s*\$[^$]*/, "RUBYLIBDIR = #{dest_path}")
22: 
23:     File.open('Makefile', 'wb') {|f| f.print mf}
24: 
25:     # try to find make program from Ruby configure arguments first
26:     RbConfig::CONFIG['configure_args'] =~ /with-make-prog\=(\w+)/
27:     make_program = $1 || ENV['make']
28:     unless make_program then
29:       make_program = (/mswin/ =~ RUBY_PLATFORM) ? 'nmake' : 'make'
30:     end
31: 
32:     ['', ' install'].each do |target|
33:       cmd = "#{make_program}#{target}"
34:       results << cmd
35:       results << `#{cmd} #{redirector}`
36: 
37:       raise Gem::InstallError, "make#{target} failed:\n\n#{results}" unless
38:         $?.success?
39:     end
40:   end

    # File lib/rubygems/ext/builder.rb, line 42
42:   def self.redirector
43:     '2>&1'
44:   end

    # File lib/rubygems/ext/builder.rb, line 46
46:   def self.run(command, results)
47:     results << command
48:     results << `#{command} #{redirector}`
49: 
50:     unless $?.success? then
51:       raise Gem::InstallError, "#{class_name} failed:\n\n#{results.join "\n"}"
52:     end
53:   end