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Ah. Maybe consider a FreeBSD jail with a union mounted filesystem if you can get away with using a non-Apple (GNUstep/GCC?) toolchain. The teardown on a jail is as fast as the chroot syscall. ;-)

Or even better, use ZFS snapshots as your sandbox. Copy on write kicks butt. See: http://vocalbit.com/article/402/freebsd-jails-using-zfs-and-...

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Just one nitpick for an excellent comment. GNUstep/Clang would be the only way to get support for array, dictionary and number literals, as well as ARC.

GNUstep/GCC is possible, but you lose support for all of the above, blocks, and several other recent additions to the Objective-C language.

Very true. We really leaned heavily on the new literals and ARC in this course.

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