NAME
    Apache::Bootstrap - Bootstraps dual life mod_perl and mod_perl2 Apache
    modules

SYNOPSIS
    In your Makefile.PL

     use Apache::Bootstrap 0.06;

     my $bootstrap;

     BEGIN {
        # check to make sure we have mod_perl 1 installed
        $bootstrap = Apache::Bootstrap->new({ mod_perl => 0 });

        # or check for mod_perl 2
        $bootstrap = Apache::Bootstrap->new({ mod_perl2 => '1.99022' });
     }

     # check for Apache::Test, return the installed version if exists
     my $has_apache_test = $bootstrap->check_for_apache_test();

     # see if mod_perl2 is installed (useful when both mp1 and mp2 are installed)
     my $mp_generation = $bootstrap->satisfy_mp_generation( 2 );

     unless ($mp_generation) {

         # no mod_perl2?  look for mod_perl 1
         $mp_generation = $bootstrap->satisfy_mp_generation( 1 );
     }

     # any mod_perl version will do
     $mp_generation = Apache::Bootstrap->satisfy_mp_generation();
     unless ( $mp_generation ) {
          warn( 'No mod_perl installation was found' )
     } else {
          warn( "mod_perl generation $mp_generation was found" );
     }

     # write the Makefile using a mod_perl version dependent build subsystem
     $bootstrap->WriteMakefile( %maker_options );

DESCRIPTION
    Writing modules for mod_perl that work under both mod_perl and mod_perl2
    is not fun.

    This module is here to make that endeavour less painful. mod_perl2 is
    great, but a lot of users are still using mod_perl. Migrating to
    mod_perl2 while maintaining mod_perl compatibility isn't easy, and this
    module is here to make that transition as painless as possible.

METHODS
  new()
     # try to find these versions of mod_perl, die if none are found
     $bootstrap = Apache::Bootstrap->new({
         mod_perl2 => 1.99022, # after mp2 renaming
         mod_perl  => 0,       # any verison of mp1
     });

    These code checks to see if either mp1 or mp2 versions are present. One
    successful version check means that it returns a valid object.

  mp_prereqs()
     returns the prerequisites for mod_perl versions in a hash reference

  check_for_apache_test()
     $apache_test_version = Apache::Bootstrap->check_for_apache_test;

    Returns the version of Apache::Test installed. Returns undefined if
    Apache::Test is not installed.

  satisfy_mp_generation()
     # see if mod_perl2 is installed
     my $mp_generation = $bootstrap->satisfy_mp_generation( 2 );

     unless ($mp_generation) {

         # no mod_perl2?  look for mod_perl 1
         $mp_generation = $bootstrap->satisfy_mp_generation( 1 );
     }

     # any mod_perl version will do, check for mp2 first
     $mp_generation = $bootstrap->satisfy_mp_generation();
     unless ( $mp_generation ) {
         warn( 'No mod_perl installation was found' )
     } else {
         warn( "mod_perl generation $mp_generation was found" );
     }

  apache_major_version()
     $apache_major_version = $bootstrap->apache_major_version;

    The major version number of the target apache install

  WriteMakefile()
     $bootstrap->write_makefile( %makefile_options );

    Writes the makefile using the appropriate make engine depending on what
    mod_perl version is in use. Same API as ExtUtils::MakeMaker or
    ModPerl::BuildMM

AUTHOR
    Fred Moyer <fred@redhotpenguin.com>

    The mod_perl development team "<dev at perl.apache.org"> and numerous
    contributors.

    This code was lifted from Apache::SizeLimit in an effort to make it
    useful to other modules such as Apache::Reload, Apache::Dispatch, any
    dual life Apache module.

BUGS
    Please report bugs to the mod_perl development mailing list "<dev at
    perl.apache.org">