Scheme 48 1.9 release candidate #1

After something like 2.5 years of release engineering, I've put RCs for
Scheme 48 1.9 at:

http://s48.org/1.9/scheme48-1.9rc1.tgz
http://s48.org/1.9/scheme48-1.9rc1.msi

I'd appreciate if people could give this a whirl.  I'm especially
interested in reports Mac OS X Mountain Lion and Windows 8.

There are many things to say about this release; I'll say (some of) them
with the actual release announcement.  I hope to push out the actual
release by mid-January.  Sorry for taking so long.

NOTE: On my Mac OS X Lion installation, Xcode's C compilers come with a
prerelease LLVM backend that has a bug which essentially breaks
compiling the Scheme 48 VM.  (The compile takes forever, and the
resulting VM is unbearably slow.)  This affects both the Clang and the
gcc front ends.  The only solution I know to this problem is to install
LLVM/Clang via some other route.  I use the Clang/LLVM binaries from the
LLVM download page at:

http://llvm.org/releases/download.html

(Note that Clang generates many, many warnings, but the resulting
compile is fine.)

-- 
Regards,
Mike