About 10.1 Tools CD

 Welcome to the September 2001 Developer Tools CD! Contents Introduction Compatibility with Earlier Mac OS X Versions Compatibility of Built Applications Installing the Mac OS X Developer Tools Installing WebObjects Developer with the Mac OS X Developer Tools Installing the CarbonLib SDK Possible Installation Problems and Workarounds Introduction The September 2001 Developer Tools CD includes everything you need to begin developing applications for Mac OS X, including tools, documentation, and software. In addition, it includes the latest CarbonLib SDK for Mac OS 8 and 9. For the latest information and updates to Mac OS X development tools, documentation, code samples, and technical notes, please visit http://developer.apple.com/macosx. Developers are encourages to join the Apple Developer Connection which provides the most convenient access to Mac OS X development resources, including technical support and pre-release software. For information, visit http://www.apple.com/developer. Please read the separate What’s New document for information on what has changed on this CD. Compatibility with Earlier Mac OS X Versions The September 2001 Developer Tools CD is primarily intended for use on systems running Mac OS X 10.1. Earlier versions of the Developer Tools CD should not be installed or used with Mac OS X 10.1 (for example, the older linker does not work with two-level namespace binaries). If you are running earlier versions of Mac OS X, we strongly encourage you to upgrade to Mac OS X 10.1 and the September 2001 Developer Tools so you can take full advantage of new features of the tools, including two-level namespace. Two- level namespace is a new linker feature (similar to that on Mac OS 9) that provides faster launch times for your applications and more robustness by ensuring that at launch time your application dynamically links with symbols from the correct libraries. It will help ensure greater compatibility on future versions of Mac OS X as Apple adds new APIs to the system frameworks. Two-level namespace is the default behavior of the linker. Do not install the complete September 2001 Developer.mpkg package on systems earlier than Mac OS X 10.1. The only sub-package which may be useful is the Developer Tools package itself. If you want to install that (via Custom Install), update to at least Mac OS X 10.0.4 before doing so. When using the new tools (which default to two-level namespace) on a Mac OS X 10.0.4 system, you will need to add /usr/lib/libobjc.A.dylib as a library (and possibly other frameworks) to properly link Cocoa applications. That is not necessary on Mac OS X 10.1. Do not upgrade from the May 2001 Developer Tools package to the September 2001 Developer Tools unless you are running at least Mac OS X 10.0.4. On systems earlier than 10.0.4, there was an Installer bug that would prevent you from launching any applications after that tools upgrade, due to over-aggressive deletion of a non-empty directory. In Project Bu…