GUI版を起動できない（gemのwxruby-ruby19の利用不可） about bcdice HOT 11 CLOSED

# mingw32のbash
# 一部パスを隠してあります（$HOME -> ホームディレクトリ）

$ cd ~/Documents/ruby/BCDice/src

$ ruby --version
ruby 2.4.1p111 (2017-03-22 revision 58053) [i386-mingw32]

$ bundle install
Fetching gem metadata from https://rubygems.org/..............
Fetching version metadata from https://rubygems.org/..
Fetching rake 12.0.0
Installing rake 12.0.0
Fetching net-irc 0.0.9
Installing net-irc 0.0.9
Fetching wxruby-ruby19 2.0.1 (x86-mingw32)
Installing wxruby-ruby19 2.0.1 (x86-mingw32)
Fetching ocra 1.3.8
Installing ocra 1.3.8
Fetching power_assert 1.0.2
Installing power_assert 1.0.2
Using bundler 1.15.1
Fetching test-unit 3.2.4
Installing test-unit 3.2.4
Bundle complete! 5 Gemfile dependencies, 7 gems now installed.
Bundled gems are installed into ./vendor/bundle.

$ bundle exec ruby bcdice.rb
$HOME/Documents/ruby/BCDice/src/vendor/bundle/ruby/2.4.0/gems/wxruby-ruby19-2.0.1-x86-mingw32/lib/wx.rb:12:in `require': 126: 指定されたモジュールが見つかりません。   - $HOME/Documents/ruby/BCDice/src/vendor/bundle/ruby/2.4.0/gems/wxruby-ruby19-2.0.1-x86-mingw32/lib/wxruby2.so (LoadError)
        from $HOME/Documents/ruby/BCDice/src/vendor/bundle/ruby/2.4.0/gems/wxruby-ruby19-2.0.1-x86-mingw32/lib/wx.rb:12:in `<top (required)>'
        from $HOME/Documents/ruby/BCDice/src/bcdiceGui.rb:5:in `require'
        from $HOME/Documents/ruby/BCDice/src/bcdiceGui.rb:5:in `<top (required)>'
        from bcdice.rb:53:in `require'
        from bcdice.rb:53:in `<main>'

# 「モジュールが見つからない」と指摘されたファイル自体は存在する
$ ls $HOME/Documents/ruby/BCDice/src/vendor/bundle/ruby/2.4.0/gems/wxruby-ruby19-2.0.1-x86-mingw32/lib/wxruby2.so
$HOME/Documents/ruby/BCDice/src/vendor/bundle/ruby/2.4.0/gems/wxruby-ruby19-2.0.1-x86-mingw32/lib/wxruby2.so