Adam Strzelecki to SDL When using deployment in Xcode we use 10.4 SDK for PPC & i386 and 10.6 SDK for x86_64 unfortunately MAC_OS_X_VERSION_10_6 is defined only in 10.6 SDK, in older SDKs it is undefined which makes >= comparison return always TRUTH, so the GCC complains about undefined <NSWindowDelegate>, even if the original intention was to omit <NSWindowDelegate> on older SDKs. Solution, don't relay on MAC_OS_X_VERSION_10_6 but use OSX revision number 1060 directly as SDL does in many other places.

The reason these libraries are built outside of the standard XFree86
tree is so that they can be linked as shared object code directly into
SDL without causing any symbol collisions with code in the application.

You can't link static library code into shared libraries on non-x86
Linux platforms.  Since these libraries haven't become standard yet,
we'll just include them directly.

These sources are synchronized with XFree86 4.2.1