Ferret gem installation

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
creating Makefile

make
sh: line 1: make: command not found

Gem files will remain installed in /Applications/Locomotive2/Bundles/
rmagickRailsJan2007_x86.locobundle/framework/lib/ruby/gems/1.8/gems/
ferret-0.11.3 for inspection.
Results logged to /Applications/Locomotive2/Bundles/
rmagickRailsJan2007_x86.locobundle/framework/lib/ruby/gems/1.8/gems/
ferret-0.11.3/ext/gem_make.out

try the ferret forum: http://www.ruby-forum.com/forum/5