Gem::Ext::Builder.make

# File tmp/rubies/ruby-3.0.5/lib/rubygems/ext/builder.rb, line 20
def self.make(dest_path, results, make_dir = Dir.pwd)
  unless File.exist? File.join(make_dir, 'Makefile')
    raise Gem::InstallError, 'Makefile not found'
  end

  # try to find make program from Ruby configure arguments first
  RbConfig::CONFIG['configure_args'] =~ /with-make-prog\=(\w+)/
  make_program_name = ENV['MAKE'] || ENV['make'] || $1
  unless make_program_name
    make_program_name = (/mswin/ =~ RUBY_PLATFORM) ? 'nmake' : 'make'
  end
  make_program = Shellwords.split(make_program_name)

  # The installation of the bundled gems is failed when DESTDIR is empty in mswin platform.
  destdir = (/\bnmake/i !~ make_program_name || ENV['DESTDIR'] && ENV['DESTDIR'] != "") ? 'DESTDIR=%s' % ENV['DESTDIR'] : ''

  ['clean', '', 'install'].each do |target|
    # Pass DESTDIR via command line to override what's in MAKEFLAGS
    cmd = [
      *make_program,
      destdir,
      target,
    ].reject(&:empty?)
    begin
      run(cmd, results, "make #{target}".rstrip, make_dir)
    rescue Gem::InstallError
      raise unless target == 'clean' # ignore clean failure
    end
  end
end