apache2-prefork-dev 2.2.8-1ubuntu0.16 (ia64 binary) in ubuntu hardy

 This package provides the development headers and apxs2 binary for
 apache2-mpm-prefork; see the apache2 package description for more details.
 .
 This should only be used when you absolutely *have* to have a non-threaded
 environment, ie for PHP4.