Problem isntalling rubinius

configure.log

  ~  rvm install rbx-head
rbx-head installing #dependencies 
Warning: URL was not passed to __rvm_check_for_tarball
Cleaning git repo
Fetching from origin
Pulling from origin master
Copying from repo to source...
rbx-head - #configuring
Error running '/Users/quintessentialbum/.rvm/wrappers/ree-1.8.7-head/ruby  ./configure --prefix=/Users/quintessentialbum/.rvm/rubies/rbx-head   --with-opt-dir=/Users/quintessentialbum/.rvm/usr ', please read /Users/quintessentialbum/.rvm/log/rbx-head/configure.log
There has been an error while running '/Users/quintessentialbum/.rvm/wrappers/ree-1.8.7-head/ruby  ./configure --prefix=/Users/quintessentialbum/.rvm/rubies/rbx-head   --with-opt-dir=/Users/quintessentialbum/.rvm/usr '.  
Halting the installation.
➜  ~  cat /Users/quintessentialbum/.rvm/log/rbx-head/configure.log
[2012-08-10 23:24:12] /Users/quintessentialbum/.rvm/wrappers/ree-1.8.7-head/ruby  ./configure --prefix=/Users/quintessentialbum/.rvm/rubies/rbx-head   --with-opt-dir=/Users/quintessentialbum/.rvm/usr 
Checking gcc: found
Checking g++: found
Checking bison: found
Configuring LLVM...
  Checking for existing LLVM library tree: not found.
  Checking for 'llvm-config': not found
  Checking for prebuilt LLVM package...
    Downloading llvm-3.0-x86_64-apple-darwin12.0.0.tar.bz2...
/Users/quintessentialbum/.rvm/rubies/ree-1.8.7-head/lib/ruby/1.8/timeout.rb:60: [BUG] Segmentation fault
ruby 1.8.7 (2012-02-08 patchlevel 358) [i686-darwin11.2.0]

/Users/quintessentialbum/.rvm/scripts/functions/utility: line 149: 87373 Abort trap: 6           /Users/quintessentialbum/.rvm/wrappers/ree-1.8.7-head/ruby ./configure --prefix=/Users/quintessentialbum/.rvm/rubies/rbx-head --with-opt-dir=/Users/quintessentialbum/.rvm/usr