Document Revision History

This table describes the changes to Dynamic Library Programming Topics.

Date	Notes
2012-07-23	Updated to use automatic reference counting.
	Updated reference software to OS 10.7 and the Xcode 4.3.3 Command Line Tools component.
	Adopted automatic reference counting (ARC) in Objective-C–based code listings.
	Replaced use of GCC (`gcc`) with LLVM compiler (`clang`).
2012-06-11	Update example code to new initializer pattern.
2009-02-26	Added information about run-path dependent libraries.
	Added Run-Path Dependent Libraries.
2009-02-04	Made minor corrections.
	Fixed small errors in content and example code. Switched to using `~/include` and `~/lib` instead of `/usr/local/include` and `/usr/local/lib` as working locations for headers and libraries.
2006-11-07	Added information on using libtool to create libraries and on locating external resources using file-path macros.
	Added details about `@executable_path` and `@loader_path` in Locating External Resources.
	Added tip on using libtool to build dynamic libraries in Setting the Library’s Version Information.
2006-09-05	Added information about the creation and usage of private embedded frameworks.
	Added information to Using Dynamic Libraries > Installing Dependent Libraries.
2006-02-07	Made minor correctness changes.
	Removed extraneous code lines from Listing 3.
2005-08-11	Corrected errors and typos.
	Changed `LS_LIBRARY_PATH` to `LD_LIBRARY_PATH` in Using Dynamic Libraries.
	Changed `DYLD_PRIINT_STATISTICS` to `DYLD_PRINT_INITIALIZERS` and corrected description for `DYLD_PRINT_SEGMENTS` in Logging Dynamic Loader Events.
2005-06-04	New document that shows how to correctly design, implement, and use dynamic libraries.