vowpal wabbit 7.0

Closes Homebrew/homebrew#16210.

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

Formula/vowpal-wabbit.rb

@@ -0,0 +1,26 @@
+require 'formula'
+
+class VowpalWabbit < Formula
+  homepage 'https://github.com/JohnLangford/vowpal_wabbit'
+  url 'https://github.com/JohnLangford/vowpal_wabbit/tarball/v7.0'
+  sha1 '1960f9b8423ce13d6c0f29e3c23feeb2d52f2918'
+
+  head 'git://github.com/JohnLangford/vowpal_wabbit.git'
+
+  depends_on :libtool
+  depends_on :automake
+  depends_on 'boost' => :build
+
+  def install
+    # 7.0 tarball doesn't include autogen files
+    inreplace 'autogen.sh' do |s|
+      s.gsub! 'libtoolize', 'glibtoolize'
+      s.gsub! '/usr/share/aclocal', "#{HOMEBREW_PREFIX}/share/aclocal"
+    end
+
+    system "./autogen.sh"
+    system "./configure", "--prefix=#{prefix}"
+    system "make"
+    system "make install"
+  end
+end