Jasper Issue

brew --config

HOMEBREW_VERSION: 0.8
HEAD: d5fbf804a74229f2adae5dea5eaa540c0eebe7e1
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
HOMEBREW_REPOSITORY: /usr/local
HOMEBREW_LIBRARY_PATH: /usr/local/Library/Homebrew
Hardware: dual-core 64-bit core2
OS X: 10.5.8
Kernel Architecture: i386
Ruby: 1.8.6-369
/usr/bin/ruby => /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
Xcode: 3.1.4
GCC-4.0: build 5493 
GCC-4.2: build 5577 
LLVM: N/A 
MacPorts or Fink? false
X11 installed? true

brew install -vd imagemagick

==> Installing imagemagick dependency: jasper
Error: undefined method `>' for nil:NilClass
Please report this bug:
    https://github.com/mxcl/homebrew/wiki/checklist-before-filing-a-new-issue
/usr/local/Library/Homebrew/formula.rb:234:in `fails_with_llvm?'
/usr/local/Library/Homebrew/formula.rb:257:in `brew'
/usr/local/Library/Homebrew/build.rb:53:in `install'
/usr/local/Library/Homebrew/build.rb:27
/usr/local/Library/Formula/jasper.rb:20