guide for sqlite3-ruby installation on Windows without LoadError

C:\>ruby -v
ruby 2.3.1p112 (2016-04-26 revision 54768) [x64-mingw32]
C:\>irb
irb(main):001:0> require 'sqlite3'
=> true

• gem uninstall sqlite3 --all

• Download the latest sqlite3-ruby, https://github.com/sparklemotion/sqlite3-ruby
• unzip the package

• run command-line in the extracted dir
• make sure you have your C compiler installed and added to PATH
• gem install bundler
• bundle install
• rake native gem
• you'll find a dir named 'pkg' generated

• enter dir 'pkg'
• gem install --local sqlite3-xxx.gem ('xxx' is version code)

• irb
• require 'sqlite3'