```ruby
Gem::Specification.new do |s|
  s.name = 'tzinfo'
  s.version = '1.0.0.pre1'  
  s.summary = 'Daylight-savings aware timezone library'
  s.description = 'TZInfo is a Ruby library that provides daylight savings aware transformations between times in different time zones.'
  s.author = 'Philip Ross'
  s.email = 'phil.ross@gmail.com'
  s.homepage = 'http://tzinfo.rubyforge.org'
  s.license = 'MIT' 
  s.files = ['CHANGES', 'LICENSE', 'Rakefile', 'README', 'lib', 'test'] +
            Dir['lib/**/*.rb'].delete_if {|f| f.include?('.svn')} +
            Dir['test/**/*'].delete_if {|f| f.include?('.svn')}
  s.platform = Gem::Platform::RUBY
  s.require_path = 'lib'
  s.extra_rdoc_files = ['README', 'CHANGES', 'LICENSE']
  s.required_ruby_version = '>= 1.8.6'
end
```

Add a post_install_message to the gem to inform users that the Ruby data modules have been moved.
user
```ruby
Gem::Specification.new do |s|
  s.name = 'tzinfo'
  s.version = '1.0.0.pre1'  
  s.summary = 'Daylight-savings aware timezone library'
  s.description = 'TZInfo is a Ruby library that provides daylight savings aware transformations between times in different time zones.'
  s.author = 'Philip Ross'
  s.email = 'phil.ross@gmail.com'
  s.homepage = 'http://tzinfo.rubyforge.org'
  s.license = 'MIT' 
  s.files = ['CHANGES', 'LICENSE', 'Rakefile', 'README', 'lib', 'test'] +
            Dir['lib/**/*.rb'].delete_if {|f| f.include?('.svn')} +
            Dir['test/**/*'].delete_if {|f| f.include?('.svn')}
  s.platform = Gem::Platform::RUBY
  s.require_path = 'lib'
  s.extra_rdoc_files = ['README', 'CHANGES', 'LICENSE']
  s.required_ruby_version = '>= 1.8.6'

  s.post_install_message = <<END

TZInfo Timezone Data has been Moved
===================================

The timezone data previously included with TZInfo as Ruby modules has now been
moved to a separate tzinfo-data gem. TZInfo also now supports using the system
zoneinfo files on Linux, Mac OS X and other Unix operating systems.

If you want to continue using the Ruby timezone modules, or you are using an
operating system that does not include zoneinfo files (such as
Microsoft Windows), you will need to install tzinfo-data by running:

gem install tzinfo-data

If tzinfo-data is installed, TZInfo will use the Ruby timezone modules.
Otherwise, it will attempt to find the system zoneinfo files. Please refer to
the TZInfo documentation (available from http://tzinfo.rubyforge.org) for
further information.

END

end
```
assistant