This book assumes that you have installed the Mac OS X Developer Tools. If you bought the boxed version of Mac OS X 10.2 (Jaguar), the Developer Tools should be included on a separate CD-ROM. If you bought a new Macintosh that came with Mac OS X preinstalled, the Developer Tools installer will probably be in /Applications/Installers. Failing either of those, or if you'd like to get the latest version of the tools, they are available to Apple Developer Connection (ADC) members at http://connect.apple.com.
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