kcar.gemspec in kcar-0.6.0 vs kcar.gemspec in kcar-0.7.0

@@ -1,23 +1,27 @@
-ENV["VERSION"] or abort "VERSION= must be specified"
-manifest = File.readlines('.manifest').map! { |x| x.chomp! }
-require 'olddoc'
-extend Olddoc::Gemspec
-name, summary, title = readme_metadata
+manifest = File.exist?('.manifest') ?
+  IO.readlines('.manifest').map!(&:chomp!) : `git ls-files`.split("\n")
 
 Gem::Specification.new do |s|
   s.name = %q{kcar}
-  s.version = ENV["VERSION"].dup
-  s.homepage = Olddoc.config['rdoc_url']
+  s.version = (ENV['VERSION'] || '0.7.0').dup
+  s.homepage = 'https://yhbt.net/kcar/'
   s.authors = ["kcar hackers"]
-  s.description = readme_description
-  s.email = %q{[e-mail]}
-  s.extra_rdoc_files = extra_rdoc_files(manifest)
+  s.description = File.read('README').split("\n\n")[1]
+  s.email = %q{[e-mail]}
+  s.extra_rdoc_files = IO.readlines('.document').map!(&:chomp!).keep_if do |f|
+    File.exist?(f)
+  end
   s.files = manifest
-  s.summary = summary
+  s.summary = 'bytestream to Rack response converter'
   s.test_files = Dir['test/test_*.rb']
   s.extensions = %w(ext/kcar/extconf.rb)
-  s.add_development_dependency('olddoc', '~> 1.0')
   s.add_development_dependency('test-unit', '~> 3.0')
 
-  s.licenses = %w(GPLv2+ Ruby)
+  # Note: To avoid ambiguity, we intentionally avoid the SPDX-compatible
+  # 'Ruby' for the Ruby 1.8 license.  This is because Ruby 1.9.3 switched
+  # to BSD-2-Clause, but we inherited our license from Mongrel when
+  # Ruby was at 1.8.  We cannot automatically switch licenses when Ruby
+  # changes; so we maintain the Ruby 1.8 license (not 1.9.3+) along
+  # with GPL-2.0+
+  s.licenses = %w(GPL-2.0+ Nonstandard)
 end