OpenCV 2.1.0

Open source Computer Vision is a library of programming functions for real time computer vision.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Formula/opencv.rb

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+require 'formula'
+
+class Opencv <Formula
+  url 'http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/2.1/OpenCV-2.1.0.tar.bz2/download'
+  homepage 'http://opencv.willowgarage.com/wiki/'
+  md5 '1d71584fb4e04214c0085108f95e24c8'
+  version '2.1.0'
+
+  depends_on 'cmake'
+  depends_on 'pkg-config'
+  
+  # Optional.
+  depends_on 'libtiff'
+  depends_on 'jasper'
+  depends_on 'tbb'  
+
+  # Very Optional? Pulls in lots of dependencies but maybe not needed unless you're doing video analysis
+  # Video analysis requires a bunch more things which we don't have: libgstreamer, libxine, unicap, libdc1394 2.x (or libdc1394 1.x + libraw1394).
+  # We can leave this disabled for now.
+  # Maybe we could add a flag?
+  #depends_on 'ffmpeg'
+  
+  # There are other optional dependencies but they don't currently exist in Homebrew.
+
+  def install
+    system "cmake -G 'Unix Makefiles' -DCMAKE_INSTALL_PREFIX:PATH=#{prefix} ."
+    system "make"
+    system "make install"
+  end
+  
+    def caveats
+      return <<-EOS
+  The OpenCV Python module will not work until you edit your PYTHONPATH like so:
+  
+    export PYTHONPATH="#{HOMEBREW_PREFIX}/lib/python2.6/site-packages/:$PYTHONPATH"
+  
+  To make this permanent, put it in your shell's profile (e.g. ~/.profile).
+    EOS
+  end
+end