i have this error when i try to install ferret
C:\Documents and Settings>gem install ferret
Need to update 6 gems from http://gems.rubyforge.org
Building native extensions. This could take a while…
ERROR: While executing gem … (Gem::Installer::ExtensionBuildError)
ERROR: Failed to build gem native extension.
ruby extconf.rb install ferret
‘nmake’ is not recognized as an internal or external command,
operable program or batch file.
Gem files will remain installed in
Results logged to