How to install sphinx 2.0.6 with Homebrew

sphinx.rb

require 'formula'
 
class Libstemmer < Formula
  # upstream is constantly changing the tarball,
  # so doing checksum verification here would require
  # constant, rapid updates to this formula.
  head 'http://snowball.tartarus.org/dist/libstemmer_c.tgz'
  homepage 'http://snowball.tartarus.org/'
end
 
class Sphinx < Formula
  homepage 'http://www.sphinxsearch.com'
  url 'http://sphinxsearch.com/files/sphinx-2.0.6-release.tar.gz'
  sha1 'fe1b990052f961a100adba197abe806a3c1b70dc'
 
  head 'http://sphinxsearch.googlecode.com/svn/trunk/'
 
  option 'mysql', 'Force compiling against MySQL'
  option 'pgsql', 'Force compiling against PostgreSQL'
  option 'id64',  'Force compiling with 64-bit ID support'
 
  depends_on :mysql if build.include? 'mysql'
  depends_on :postgresql if build.include? 'pgsql'
 
  resource 'stemmer' do
    url 'http://snowball.tartarus.org/dist/libstemmer_c.tgz'
    sha1 '1ac6bb16e829e9f3a58f62c27047c26784975aa1'
  end
 
  fails_with :llvm do
    build 2334
    cause "ld: rel32 out of range in _GetPrivateProfileString from /usr/lib/libodbc.a(SQLGetPrivateProfileString.o)"
  end
 
  fails_with :clang do
    build 421
    cause <<-EOS.undent
      sphinxexpr.cpp:1802:11: error: use of undeclared identifier 'ExprEval'
    EOS
  end
 
  def install
    # Libstemmer.new.brew { (buildpath/'libstemmer_c').install Dir['*'] }
    (buildpath/'libstemmer_c').install resource('stemmer')
 
    # libstemmer changed the name of the non-UTF8 Hungarian source files,
    # but the released version of sphinx still refers to it under the old name.
    inreplace "libstemmer_c/Makefile.in",
      "stem_ISO_8859_1_hungarian", "stem_ISO_8859_2_hungarian"
 
    args = %W[--prefix=#{prefix}
              --disable-dependency-tracking
              --localstatedir=#{var}
              --with-libstemmer]
 
    args << "--enable-id64" if build.include? 'id64'
 
    %w{mysql pgsql}.each do |db|
      if build.include? db
        args << "--with-#{db}"
      else
        args << "--without-#{db}"
      end
    end
 
    system "./configure", *args
    system "make install"
  end
 
  def caveats; <<-EOS.undent
    Sphinx has been compiled with libstemmer support.

    Sphinx depends on either MySQL or PostreSQL as a datasource.

    You can install these with Homebrew with:
      brew install mysql
        For MySQL server.

      brew install mysql-connector-c
        For MySQL client libraries only.

      brew install postgresql
        For PostgreSQL server.

    We don't install these for you when you install this formula, as
    we don't know which datasource you intend to use.
    EOS
  end
end

steps.txt

1- brew install sphinx, this will install the latest version of sphinx
2- Copy the above file to Library/Formula/sphinx.rb
3- brew unlink sphinx
4- brew install sphinx --mysql
5- brew pin sphinx
6- git checkout Library/Formula/sphinx.rb