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* OSX: fix compilation with 10.7 SDKStefano Pigozzi2013-06-191-0/+57
Recent work in the OS X parts of the code started using clang's support for Obj-C's support for Literals and Subscripting. These particular language features remove a lot of boilerplate code and allow to interact with collections as consicely as one would do in scripting languages like Ruby or Python. Even if these are compiler features, Subscripting needs some runtime support. This is provided with libarclite (coming with the compiler), but we need to add the proper method definitions since the 10.7 SDK headers do not include them. That is because 10.7 shipped before this language features. This will cause some warnings when compiling with the 10.7 SDK because the commit also redefines BOOL to make autoboxing/unboxing of BOOL literals to work. If you need to test this for whatever reason on 10.8, just pass in the correct SDK to configure's extra cflags: ./configure --extra-cflags='-mmacosx-version-min=10.7 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk' Fixes #117