Added formula for opentracker.

Signed-off-by: David Höppner <0xffea@gmail.com>

Formula/opentracker.rb

@@ -0,0 +1,27 @@
+require 'formula'
+
+class Libowfat <Formula
+  url 'http://dl.fefe.de/libowfat-0.28.tar.bz2'
+  md5 '6bbee9a86506419657d87123b7a6f2c1'
+  homepage 'http://www.fefe.de/libowfat/'
+end
+
+class Opentracker <Formula
+  version 'HEAD'
+  url 'cvs://:pserver:anoncvs:@cvs.erdgeist.org:/home/cvsroot:opentracker'
+  homepage 'http://erdgeist.org/arts/software/opentracker/'
+
+  def install
+    # First libowfat must be compiled and installed where opentracker is expecting it
+    libowfat_include = Pathname.new(pwd) + 'libowfat'
+    Libowfat.new.brew do
+      system "make install INCLUDEDIR=#{libowfat_include} LIBDIR=#{libowfat_include} MAN3DIR=."
+    end
+
+    # Tell opentracker that libowfat headers are located in the same directory as itself
+    ENV['PREFIX'] = '.'
+
+    system "make", "opentracker"
+    bin.install "opentracker"
+  end
+end