Please read the README file first. :-)
Wiki page must have also useful information to install Ming/Ruby.
  http://mingruby.rubyforge.org/wiki/wiki.pl?Installation_Guide

Basic Installation
==================

  Before installing Ming/Ruby, you needs to install the following
  tools:

    * Ming 0.3beta1
    * ruby 0.8.x

  (I guess Ming must be compiled as a static linked library, however,
  you may use a dynamic library ???)

  Quick start
  -----------

    First, 'cd' to the directory containing the package's source code
    and then use 'setup.rb' to do all configure/setup/install
    procedure as follows.

    The 'setup.rb' script in this package is the installer of Ming/Ruby.
    Let's type this (You might needs the super user privilege)
      ($ su)
       # ruby setup.rb

    For MacOSX, otherwise you have to type the following:
       $ sudo ruby setup.rb

    On the other hand, if you want to install a program to your home
    directory, you can type following instead:
       $ ruby setup.rb all -- --prefix=$HOME

    If 'setup.rb' cannot find the directory of Ming, you can tell the
    directory explicitly using the following options:

       --with-ming-include=DIR
          C header files for Ming in DIR
       --with-ming-lib=DIR
          object code libraries for Ming in DIR
       --with-ming-dir=PREFIX
          use PREFIX as
             PREFIX/include ... C header files for Ming
             PREFIX/lib     ... object code libraries for Ming

    Note that you have to add '--' symbols into the arguments
    because of some technical reasons, as like,
       $ ruby setup.rb -- --with-ming-dir=/usr/local

    For 'libpng', 'libungif', and 'libz', the same features are provided.

Detailed Installation Process
=============================

  Please refer to the original page.
    http://www.loveruby.net/en/man/setup/

  The following option lists for 'setup.rb' is quoted from the
  original documents.

  Global Options
  --------------
    
  "Global Option" is a command line option which you can use
  for all tasks.  You must give a global option before any task
  name.
    
    -q,--quiet
        suppress message outputs
    --verbose
        output messages verbosely (default)
    -h,--help
        prints help and quit
    -v,--version
        prints version and quit
    --copyright
        prints copyright and quit
    
  Tasks
  -----
  These are acceptable tasks:
    all
        Invokes `config', `setup', then `install'.
        Task options for all is same with config.
    config
        Checks and saves configurations.
    show
        Prints current configurations.
    setup
        Compiles ruby extentions.
    install
        Installs files.
    clean
        Removes created files.
    distclean
        Removes all created files.
    
  Task Options for CONFIG/ALL
  ---------------------------
    
    --prefix=PATH
        a prefix of the installing directory path
    --stdruby=PATH
        the directory for standard ruby libraries
    --siterubycommon=PATH
        the directory for version-independent non-standard
        ruby libraries
    --siteruby=PATH
        the directory for non-standard ruby libraries
    --bindir=PATH
        the directory for commands
    --rbdir=PATH
        the directory for ruby scripts
    --sodir=PATH
        the directory for ruby extentions
    --datadir=PATH
        the directory for shared data
    --rubypath=PATH
        path to set to #! line
    --rubyprog=PATH
        the ruby program using for installation
    --makeprog=NAME
        the make program to compile ruby extentions
    --without-ext
        forces to setup.rb never to compile/install
        ruby extentions.
    --rbconfig=PATH
        your rbconfig.rb to load
    
  You can view default values of these options by typing

      $ ruby setup.rb --help

    
  If there's the directory named "packages",
  You can also use these options:
    --with=NAME,NAME,NAME...
        Package names which you want to install.
    --without=NAME,NAME,NAME...
        Package names which you do not want to install.
    
  [NOTE] You can pass options for extconf.rb like this:

      ruby setup.rb config -- --with-tklib=/usr/lib/libtk-ja.so.8.0

    
  Task Options for INSTALL
  ------------------------
    
    --no-harm
        prints what to do and done nothing really.
    --prefix=PATH
        The prefix of the installing directory path.
        This option may help binary package maintainers.
        A default value is an empty string.