Use Gemfile for development/test dependencies

Author: kou

Gemfile

@@ -1,6 +1,6 @@
-# -*- mode: ruby; coding: utf-8 -*-
+# -*- ruby -*-
 #
-# Copyright (C) 2011-2013  Kouhei Sutou <[email protected]>
+# Copyright (C) 2011-2025  Sutou Kouhei <[email protected]>
 #
 # This library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
@@ -18,3 +18,13 @@
 source "https://rubygems.org/"
 
 gemspec
+
+group :development, :test do
+  gem "bundler"
+  gem "rake"
+end
+
+group :test do
+  gem "test-unit"
+end
+

pkg-config.gemspec

@@ -1,6 +1,6 @@
 # -*- mode: ruby -*-
 #
-# Copyright (C) 2010-2019  Kouhei Sutou <[email protected]>
+# Copyright (C) 2010-2025  Sutou Kouhei <[email protected]>
 #
 # This library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
@@ -22,7 +22,7 @@ Gem::Specification.new do |spec|
   spec.name = "pkg-config"
   spec.version = PKGConfig::VERSION
   spec.homepage = "https://github.com/ruby-gnome/pkg-config"
-  spec.authors = ["Kouhei Sutou"]
+  spec.authors = ["Sutou Kouhei"]
   spec.email = ["[email protected]"]
   spec.summary = 'A pkg-config implementation for Ruby'
   spec.description = "pkg-config can be used in your extconf.rb to properly detect need libraries for compiling Ruby native extensions"
@@ -31,9 +31,5 @@ Gem::Specification.new do |spec|
   spec.files += Dir.glob("lib/**/*.rb")
   spec.test_files = Dir.glob("test/**/*.rb")
 
-  spec.add_development_dependency("test-unit")
-  spec.add_development_dependency("rake")
-  spec.add_development_dependency("bundler")
-
   spec.metadata["msys2_mingw_dependencies"] = "pkg-config"
 end