memcache.rb

package :memcache do
  description 'A High-performance, distributed memory object caching system.'
  arch             = @options[:arch] || 'x86_64'
  version          = @options[:versions][:memcache] || '1.2.8'
  libevent_version = @options[:versions][:libevent] || '1.4.9'
  
  mirror_path      = @options[:mirror] || "http://www.danga.com/memcached/dist"
  install_path     = "#{@defaults[:prefix]}/memcache/#{version}"
  libevent_path    = "#{@defaults[:prefix]}/libevent/#{libevent_version}"
    
  source "#{mirror_path}/memcached-#{version}.tar.gz" do
    prefix install_path
    
    with %W( libevent=#{libevent_path} )
    enable %W( threads #{'64bit' if arch =='x86_64'} )
  end
  
  verify do 
    has_directory "#{install_path}"
    has_executable "#{install_path}/bin/memcached"
  end
    
  requires :libevent
end

package :libevent do
  description 'Asynchronous event notification library.'
  version          = @options[:versions][:libevent] || '1.2.8'

  mirror_path      = @options[:mirror] || "http://monkey.org/~provos"
  install_path     = "#{@defaults[:prefix]}/libevent/#{version}"
  
  source "#{mirror_path}/libevent-#{version}-stable.tar.gz" do
    prefix install_path
  end
  
  verify do 
    has_directory "#{install_path}"
    has_directory "#{install_path}/include"
    has_file "#{install_path}/include/event.h"
  end
end

output

On the host, it would end up doing the following:

1. wget http://monkey.org/~provos/libevent-1.4.9-stable.tar.gz
2. extract it
3. run ["./configure --prefix=/z/services/libevent/1.4.9", "make", "make install"].join(' && ')
4. wget http://www.danga.com/memcached/dist/memcached-1.2.8.tar.gz
5. extract it
6. run ["./configure --prefix=/z/services/memcached/1.2.8 --with-libevent=/z/services/libevent/1.4.9 --enable-threads --enable-64bit", "make", "make install"].join(' && ')

pseudo code

source_package "libevent" do
  version '1.4.9'
  location #{node[:libevent][:mirror]} || "http://monkey.org/~provos"
  filename "libevent-#{version}-stable.tar.gz"
  prefix "/z/services/libevent/#{version}"
end

source_package "memcache" do
  version '1.2.8'
  location #{node[:memcache][:mirror]} || "http://www.danga.com/memcached/dist"
  filename "memcached-#{version}.tar.gz"
  prefix "/z/services/memcache/#{version}"
  configure {:with => %W( libevent=/z/services/libevent/#{node[:libevent][:version]} ),
             :enable => %W( threads #{'64bit' if node[:machine] == 'x86_64'} )}
end