Rakefile in mkmf-lite-0.2.4 vs Rakefile in mkmf-lite-0.2.5

@@ -1,26 +1,31 @@
-require 'rake'
-require 'rake/clean'
-require 'rake/testtask'
-
-CLEAN.include("**/*.gem", "**/*.rbc")
-
-namespace 'gem' do
-  desc 'Create the mkmf-lite gem.'
-  task :create => [:clean] do
-    spec = eval(IO.read('mkmf-lite.gemspec'))
-    Gem::Builder.new(spec).build
-  end
-
-  desc 'Install the mkmf-lite gem.'
-  task :install => [:create] do
-    file = Dir["*.gem"].first
-    sh "gem install #{file}"
-  end
-end
-
-Rake::TestTask.new do |t|
-  t.verbose = true
-  t.warning = true
-end
-
-task :default => :test
+require 'rake'
+require 'rake/clean'
+require 'rake/testtask'
+
+CLEAN.include("**/*.gem", "**/*.rbc")
+
+namespace 'gem' do
+  desc 'Create the mkmf-lite gem.'
+  task :create => [:clean] do
+    spec = eval(IO.read('mkmf-lite.gemspec'))
+    if Gem::VERSION.to_f < 2.0
+      Gem::Builder.new(spec).build
+    else
+      require 'rubygems/package'
+      Gem::Package.build(spec)
+    end
+  end
+
+  desc 'Install the mkmf-lite gem.'
+  task :install => [:create] do
+    file = Dir["*.gem"].first
+    sh "gem install -l #{file}"
+  end
+end
+
+Rake::TestTask.new do |t|
+  t.verbose = true
+  t.warning = true
+end
+
+task :default => :test