License.txt for libc++ headers?

I'm working with clang and libc++ on Mac OS X 10.8, using Xcode 4.4.

I need a copy of the LICENSE.TXT that's mentioned at the start of the
libc++ headers, but if Apple supplies a copy, I can't find it. Can
anyone tell me where I can find it?

thanks,

I need a copy of the LICENSE.TXT that's mentioned at the start of the
libc++ headers, but if Apple supplies a copy, I can't find it. Can
anyone tell me where I can find it?

Never mind, found it:

$ clang --version
Apple clang version 4.0 (tags/Apple/clang-421.0.60) (based on LLVM 3.1svn)
Target: x86_64-apple-darwin12.0.0
Thread model: posix

So, LLVM 3.1's LICENSE.TXT:

http://llvm.org/releases/3.1/LICENSE.TXT

Apologies for wasting time.