gtk2 : add static gemspec

gtk2/Rakefile

@@ -1,6 +1,6 @@
 # -*- ruby -*-
 #
-# Copyright (C) 2011-2015  Ruby-GNOME2 Project Team
+# Copyright (C) 2011-2018  Ruby-GNOME2 Project Team
 #
 # This library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
@@ -19,9 +19,10 @@
 $LOAD_PATH.unshift("./../glib2/lib")
 require 'gnome2/rake/package-task'
 
-package_task = GNOME2::Rake::PackageTask.new do |package|
-  package.summary = "Ruby/GTK2 is a Ruby binding of GTK+-2.x."
-  package.description = "Ruby/GTK2 is a Ruby binding of GTK+-2.x."
+package_name = File.basename(__dir__)
+spec = Gem::Specification.load("#{package_name}.gemspec")
+
+GNOME2::Rake::PackageTask.define(spec) do |package|
   package.dependency.gem.runtime = ["atk", "pango", "gdk_pixbuf2"]
   package.windows.packages = []
   package.windows.dependencies = []
@@ -61,7 +62,6 @@ package_task = GNOME2::Rake::PackageTask.new do |package|
     },
   ]
 end
-package_task.define
 
 namespace :windows do
   desc "create default gtkrc"

gtk2/gtk2.gemspec

@@ -0,0 +1,44 @@
+# -*- ruby -*-
+#
+# Copyright (C) 2018  Ruby-GNOME2 Project Team
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+require_relative "../glib2/version.rb"
+
+Gem::Specification.new do |s|
+  s.name          = "gtk2"
+  s.summary = "Ruby/GTK2 is a Ruby binding of GTK+-2.x."
+  s.description = "Ruby/GTK2 is a Ruby binding of GTK+-2.x."
+  s.author        = "The Ruby-GNOME2 Project Team"
+  s.email         = "ruby-gnome2-devel-en@lists.sourceforge.net"
+  s.homepage      = "https://ruby-gnome2.osdn.jp/"
+  s.licenses      = ["LGPL-2.1+"]
+  s.version       = ruby_glib2_version
+  s.extensions    = ["ext/#{s.name}/extconf.rb"]
+  s.require_paths = ["lib"]
+  s.files = [
+    "COPYING.LIB",
+    "README.md",
+    "Rakefile",
+    "#{s.name}.gemspec",
+    "extconf.rb",
+    "ext/#{s.name}/depend",
+  ]
+  s.files += Dir.glob("lib/**/*.rb")
+  s.files += Dir.glob("ext/#{s.name}/*.{c,h,def,rb}")
+  s.files += Dir.glob("sample/**/*")
+  s.files += Dir.glob("test/**/*")
+end