This directory contians an XCode build project (for Mac OS X). Note that if you are unfamiliar with OS X and you are wondering what is in this directory that XCode build projects are actually directories. This is an XCode project for Xcode 2.1 or better - and therefore unfortunately it also only supports OS 10.4 or better. The project builds the Loki library as a framework (if you want a *nix style library then use the makefiles). In order to use this project you can open it using XCode and build it. However, if you want to install the framework in /Library/Frameworks then it is easiest to build it and install it from the command line. To do this open a terminal and cd into loki/macosx and then run the following command: sudo xcodebuild clean install -configuration Release DSTROOT=/ INSTALL_PATH=/Library/Frameworks DEPLOYMENT_LOCATION=YES Be warned the clean part of the command with erase any previous directory called /Library/Frameworks/Loki.framework. Documentation for xcodebuild can be found by searching for xcodebuild in the xcode documentation. Once you have Loki installed as a framework you can use it by adding the framework to your projects or if you are building from the command line by adding '-framework Loki' to your build command. Include the Loki framework header files in the following way #include. Note that depending on how you created your Xcode project you may need to manually set the framework search path to include /Library/Frameworks - if you include Loki headers in the above manner and xcode cannot find them then that is a likely source of the problem. Of course you should also check that the Loki framework actually is in /Library/Frameworks. The Xcode project does not currently build the yasli and flex parts of Loki. If anyone would like that then please post a request on the loki developers forum. The Debug configuration of XCode project will build binaries that are native to the build platform and the Release build will produce universial binaries. The build has been tested on a G5 and a MacBook Pro. Neither the documentation nor the tests are built. Bug #1463844 discusses the fact that code stripping does not work on OS X. The Xcode build also fails when a separate code strip is enabled, however some code stripping is still being done in the build. The framework binary is quite a bit larger than the library produced by the make file - but it is a univerisal binary.