Newest Ruby Devkit is released #1

Newest Ruby Devkit (containing GCC 4.5.0) is released at the same time that RubyInstaller 1.9.2p0 is released. This contains those files and directories:

bin            # directory for MSYS
devkitvars.bat # Utility if you want to set PATH automatically
dk.rb          # devkit installer to lib/ruby/site_ruby
etc            # directory for MSYS
include        # directory for MSYS
lib            # directory for MSYS
m.ico          # Icon for MSYS
mingw          # directory for MinGW
msys.bat       # MSYS launcher
msys.ico       # Icon for MSYS
perllocal.pod  # perllocal.pod
postinstall    # directory for MSYS
sbin           # directory for MSYS
share          # directory for MSYS

If you are not using both MinGW and MSYS, You just install Newest Devkit as this installation steps.