How to fix 'make' is not recognized as an internal or external command

Hi,

I have got this below error.

$ gem install rhodes-3.1.0.gem -l

Building native extensions.  This could take a while...

ERROR:  Error installing rhodes-3.1.0.gem:

        ERROR: Failed to build gem native extension.

c:/InstantRhodes/ruby/bin/ruby.exe extconf.rb

make

'make' is not recognized as an internal or external command,

operable program or batch file.

Gem files will remain installed in c:/InstantRhodes/ruby/lib/ruby/gems/1.8/gems/

rhodes-3.1.0 for inspection.

Results logged to c:/InstantRhodes/ruby/lib/ruby/gems/1.8/gems/rhodes-3.1.0/ext/

gem_make.out

Here is the Fix:
install Devkit for windows by following the steps,
https://github.com/oneclick/rubyinstaller/wiki/development-kit

--
Srikanth