RMagick, OS X, and granite

Rails
1

I’m having an odd problem with RMagick. Consider the following script:

############################################################
require ‘rubygems’
require ‘RMagick’

Magick::ImageList.new(‘granite:’).display
############################################################

Under Linux (Debian in particular), this works fine and displays the
builtin granite tile. Under OS X, I get the following error:

    RMagick reading ["granite:"]

/sw/lib/site_ruby/gems/gems/rmagick-1.13.0/lib/RMagick.rb:1523:in
read': UnableToOpenConfigureFile (Magick::ImageMagickError) from /sw/lib/site_ruby/gems/gems/rmagick-1.13.0/lib/RMagick.rb:1523:ininitialize’
from
/sw/lib/site_ruby/gems/gems/rmagick-1.13.0/lib/RMagick.rb:1522:in
`initialize’
from /tmp/foo.rb:4

Under both Linux and OS X running “display granite:” on the commandline
works perfectly.

I have Ruby and ImageMagick installed on OS X using Fink. Does anyone
have
any insight into this?

–Greg