#!perl

BEGIN { 
    $Is_Win32 = ($^O eq "MSWin32");
    $Is_Cygwin = ($^O =~ m/cygwin/g);
    if($Is_Win32) {
        require 5.004_02;
        require Win32;
    } elsif($Is_Cygwin) {
    require 5.005_03;
    } else {
	require 5.003_97; 
    } 
}

sub MMN_130 () { 19980527 }

use ExtUtils::MakeMaker;
use Config ();
use FileHandle ();
use DirHandle ();
use File::Compare ();
use File::Basename qw(dirname basename);
use File::Path qw(mkpath rmtree);
use Cwd;
use File::Copy qw(cp);

#use Apache::ExtUtils qw(%Config);

unless (%Config) {
    *Config = \%Config::Config;
}

my %vcache = (); #SERVER_VERSION
my %mcache = (); #MODULE_MAGIC_NUMBER

#version 1.5 that ships with 5.003 is broken!
*cp = sub { 
    system "cp @_";
    for (@_) { -e $_ or die $! }
} if $File::Copy::VERSION < 2.0;

my $Is_dougm = (defined($ENV{USER}) && ($ENV{USER} eq "dougm"));
my $USE_THREADS;
my $thrlib = join '|', qw(-lpthread);

if ($] < 5.005_60) {
    $USE_THREADS = (defined($Config{usethreads}) && 
		    ($Config{usethreads} eq "define"));
}
else {
    $USE_THREADS = (defined($Config{use5005threads}) && 
		    ($Config{use5005threads} eq "define"));
}

#hmm, seems the #include flip/flop isn't needed anymore
#so ignore the stuff above for now
$USE_THREADS = $ENV{PERL_USE_THREADS} || 0;

require "./lib/mod_perl.pm";
$VERSION = $mod_perl::VERSION = $mod_perl::VERSION;
{
    $VERSION =~ s/(\d\d)(\d\d)$/$1_$2/;
}
{
    local *FH;
    open FH, "Changes";
    while(<FH>) {
	if(/^=item.*-dev/) {
	    $VERSION .= "-dev";
	    last;
	}
	last if /^=item/;
    }
    close FH;
}

use subs qw(iedit asrc);

if($] < 5.004_04) {
    print <<EOF;
I see you're building with Perl $]
It is strongly recommended that you upgrade to 5.004_04 or higher,
as there are memory leaks present in lower versions or Perl.
EOF
sleep(1);
}

#'

%Apache::MyConfig::Setup = ();
eval 'require Apache::MyConfig' ;

$APACHE_SRC_DEFAULT = $@ ? 
    '../apache_x.x/src'  :
    $Apache::MyConfig::Setup{Apache_Src} ; 

#workaround bug in 5.8.0-RC1 where Cwd::cwd creates $ENV{IFS}
#which makes apache configure fall apart on solaris
my $ifs_exists = exists $ENV{IFS};
my $PWD = cwd;
delete $ENV{IFS} unless $ifs_exists;

$ENV{APACHE_CWD} = $PWD;
$ENV{PERL5LIB} = join ':', "$PWD/lib", $ENV{PERL5LIB};

my %SSL = (
    "modules/ssl/apache_ssl.c" => "Ben-SSL",
    "apache_ssl.c" => "Ben-SSL",
    "mod_ssl.h"   => "Stronghold",
    "modules/modssl" => "Stronghold",
);

unless (-e "t/docs/test.shtml") {
    cp "t/docs/test.html", "t/docs/test.shtml";
}

for (qw(.htaccess hooks.txt)) {
    my $file = "t/docs/$_";
    local *FH;
    open FH, ">$file" or
      die "can't write test file: $file: $!";
    chmod 0666, $file;
    close FH;
}

chmod 0644, "t/conf/mod_perl_srm.conf";

mkdir "t/logs", 0777;
chmod 0777, "t/logs";

unless ($Is_Win32) {
     system "chmod a+x t/net/perl/* t/net/perl/io/*";
}

#generated by us at one time or another
my(@do_clean) = qw{
   t/docs/.htaccess 
   t/docs/hooks.txt
   src/Configuration
   lib/Apache/MyConfig.pm
   Apache/Apache.xs
   Constants/Constants.xs
   t/modules/ssi.t       
   t/logs/error_log
   t/conf/srm.conf
   t/conf/dev-null
   t/logs/httpd.pid
   src/modules/perl/mod_perl_version.h
   t/net/perl/cgi.pl
   t/report
   t/TEST
   t/httpd
   apaci/find_source
   apaci/apxs_cflags
   apaci/mod_perl.config
};
#t/conf/httpd.conf
#t/net/config.pl

for(@do_clean) { unlink $_ }

unless ($Is_Win32) {
   rename "t/conf/httpd.conf", "t/conf/httpd.conf.old";
}

rmtree "t/docs/stacked", 0, 0;

gen_script("t/net/perl/cgi.pl");
gen_script("t/report");
gen_script("t/TEST");
gen_script("apaci/find_source");
gen_script("apaci/apxs_cflags");
gen_script("apaci/perl_config", "$PWD/lib");
gen_script("apaci/load_modules.pl");

write_version_h("src/modules/perl");

my(@test_pre_init) = qq(
test_pre_init:
);

# Automatic setup support
my(@adirs, %seen, %mft_map, %vers_map, $src_dir, $vers, $conf, $ans);
%vers_map = (
   '1.1.1' => "Makefile.tmpl",
   '1.1.3' => "Makefile.tmpl",
   '1.2'  => "Makefile.tmpl-1.2",
   '1.1.1Xcert-Sentry' => "Makefile.tmpl-XCert",
   '1.1.1Ben-SSL' => "Makefile.tmpl-Ben-SSL",
   '1.1.3Ben-SSL' => "Makefile.tmpl-Ben-SSL",
   '1.2Ben-SSL' => "",
    NONE => "", 
);	     

$LIBPERL = "DEFAULT";
$USE_APACI = $USE_DSO = $USE_APXS = 0;
$WITH_APXS = "";
$APACI_ARGS = "";
@APACI_ARGS = ();
$EVERYTHING = $EXPERIMENTAL = 0;
$PERL_DEBUG = "";
$PERL_DESTRUCT_LEVEL = "";
$PERL_STATIC_EXTS = "";
$PERL_USELARGEFILES = 1;
$PERL_EXTRA_CFLAGS = "";
$PERL_EXTRA_LIBS = "";
$SSLCacheServerPort = 8539;
$SSL_BASE = ""; 
$Port = $ENV{HTTP_PORT} || 8529;
#so Doug can 'make test' different-builds@sametime/samebox
if(!$Is_Win32 and $ENV{RANDOM_PORT} and $$ > 8000 and $$ < 30000) {
    $PORT ||= $$;
    print "I'll use Port $PORT\n";
}
$PORT ||= $Port;
$TARGET = "";
$DO_HTTPD = $ENV{DO_HTTPD} || 0;
$NO_HTTPD = $ENV{NO_HTTPD} || 0;
$PREP_HTTPD = 0;
$PERL_TRACE = 0;
$ALL_HOOKS  = 0;
$APACHE_SRC = "";
$APACHE_PREFIX = "";
$APACHE_HEADER_INSTALL = 1;
$PERL_SECTIONS = 0;
$PERL_SSI = 0;
$ADD_VERSION = 1;
$STATIC = 1;
$DYNAMIC = 0;
$CONFIG = "";
$ADD_MODULE = "";
$PERL_DIRECTIVE_HANDLERS = 0;
$PERL_TABLE_API = 0;
$PERL_LOG_API = 0;
$PERL_URI_API = 0;
$PERL_UTIL_API = 0;
$PERL_FILE_API = 0;
$PERL_CONNECTION_API = 1; #these two were split out late in the game
$PERL_SERVER_API = 1;     #so they are on by default 
$PERL_RUN_XS = 0;
$MOD_PERL_PREFIX;

my %experimental = map { $_,1 } qw{
PERL_AUTOPRELOAD
PERL_RUN_XS
PERL_MARK_WHERE
DO_INTERNAL_REDIRECT
PERL_TIE_SCRIPTNAME
PERL_STASH_POST_DATA
XS_IMPORT
PERL_SAFE_STARTUP
PERL_DEFAULT_OPMASK
PERL_ORALL_OPMASK
};

my %PassEnv = map { $_,1 } qw(SSL_BASE);

my @mp_args = (keys %PassEnv,
    qw(EXPERIMENTAL EVERYTHING DO_HTTPD NO_HTTPD CONFIG ADD_MODULE 
       APACHE_PREFIX
       USE_APACI USE_DSO USE_APXS WITH_APXS APACI_ARGS PREP_HTTPD
       ALL_HOOKS ADD_VERSION STATIC DYNAMIC PORT XS_IMPORT));

sub is_mp_arg {
    my $arg = shift; 

    return 1 if $experimental{$arg};

    for (@mp_args) {
	return 1 if $arg eq $_;
    }
    return 0;
}

#callback hooks
@callback_hooks = qw{
   PERL_DISPATCH
   PERL_CHILD_INIT PERL_CHILD_EXIT
   PERL_POST_READ_REQUEST PERL_TRANS PERL_HEADER_PARSER
   PERL_ACCESS PERL_AUTHEN PERL_AUTHZ 
   PERL_TYPE PERL_FIXUP
   PERL_HANDLER PERL_LOG 
   PERL_INIT PERL_CLEANUP PERL_RESTART
   PERL_STACKED_HANDLERS 
   PERL_METHOD_HANDLERS
   PERL_DIRECTIVE_HANDLERS
   PERL_TABLE_API
   PERL_LOG_API
   PERL_URI_API
   PERL_UTIL_API
   PERL_FILE_API
   PERL_CONNECTION_API
   PERL_SERVER_API
};

$callback_alias{PERL_INIT} = "PERL_HEADER_PARSER";
$callback_alias{PERL_CLEANUP} = "PERL_LOG";
%callback_hooks = map { $_,0 } @callback_hooks;
$callback_hooks{PERL_HANDLER} = 1; #PerlHandler always on
%cant_hook = ();

my @mm_args;
{
    my($fh,$file);
    for (qw(./ ../ ./. ../.), "$ENV{HOME}/.") {
	last if $fh = FileHandle->new($file = $_."makepl_args.mod_perl");
    }
    if($fh) {
	print "Reading Makefile.PL args from $file\n";
	while(<$fh>) {
	    chomp; 
	    s/^\s+//; s/\s+$//;
	    next if /^#/ || /^$/;
	    last if /^__END__/;
	    if(/^APACI_ARGS/) { 
		s/^APACI_ARGS=//;
		push @APACI_ARGS, $_;
	    }
	    else {
		unshift @ARGV, split /\s+/, $_;
	    }
	}
	close $fh;
    }
    if(@APACI_ARGS) {
	unshift @ARGV, "APACI_ARGS=" . join(",", @APACI_ARGS); 
    }
}

my $vcpp = ($Config{cc} =~ /^cl(\.exe)?$/);
my %win32_args;
my %win32_accept = map {$_ => 1} 
    qw(APACHE_SRC INSTALL_DLL INSTALL_LIB DEBUG EAPI);

while($_ = shift) {
    ($k,$v) = split /=/, $_, 2;
    if ($vcpp) {
      if ($win32_accept{$k}) {
	$win32_args{$k} = ($k eq 'DEBUG' or $k eq 'EAPI') ? 1 : $v;
      }
      else {
	push @mm_args, $_;
      }
      next;
    }
    unless (/^(PERL|APACHE)/ or is_mp_arg($k)) {
	push @mm_args, $_;
    }
	
    if ($k eq 'PREFIX') {
        require File::Spec;
        $MOD_PERL_PREFIX =
          File::Spec->catfile($v, $Config{'installstyle'}, 'site_perl',
                              $Config{'version'}, $Config{'archname'});
    }
		
    $v = 1 unless defined $v;
    if($experimental{$k}) {
	$experimental{$k}++;
	$PERL_EXTRA_CFLAGS .= " -D${k}=1";
    }
    ${$k} = $v, next if defined ${$k};
    $callback_hooks{$k} = $v if exists $callback_hooks{$k};
}

my $win32_auto;
if ($vcpp and $win32_args{APACHE_SRC}) {
  $EVERYTHING = 1;
  my $fixed_apsrc = win32_fix_path($win32_args{APACHE_SRC}); 
  $APACHE_SRC =  -d "$fixed_apsrc/include" ? $fixed_apsrc  : 
    (-d "$fixed_apsrc/src/include" ? $fixed_apsrc . '/src' :
     die "Cannot find the Apache include directory under $fixed_apsrc");
  $win32_auto = 1;
  unless ($win32_args{INSTALL_DLL}) {
    my $w32_ap_mod = $fixed_apsrc . '/modules';
    $win32_args{INSTALL_DLL} = $w32_ap_mod if -d $w32_ap_mod;
  }
  unless ($win32_args{INSTALL_LIB}) {
    my $w32_ap_lib = $fixed_apsrc . '/libexec';
    $win32_args{INSTALL_LIB} = $w32_ap_lib if -d $w32_ap_lib;
  }
}

my %very_experimental = map {$_,1} 
qw(PERL_DEFAULT_OPMASK PERL_SAFE_STARTUP PERL_ORALL_OPMASK 
   PERL_STARTUP_DONE_CHECK PERL_DSO_UNLOAD);

if($EXPERIMENTAL) {
    for (keys %experimental) {
        next if $very_experimental{$_}; #have to *really* ask for this one
        next if $experimental{$_}++ > 1;
	$PERL_EXTRA_CFLAGS .= " -D$_=1";
    }
}

if($experimental{PERL_DEFAULT_OPMASK} > 1) {
    $experimental{PERL_SAFE_STARTUP} = 2;
    $PERL_EXTRA_CFLAGS .= " -DPERL_SAFE_STARTUP=1";
}

for (keys %PassEnv) {
    $ENV{$_} = $$_ if $$_;
}

$USE_APACI = 1 if $USE_DSO;
if(0) {
#if($USE_DSO or $USE_APXS and !$DO_HTTPD) {
    print "*" x 65, $/;
    print <<EOF;
* WARNING: mod_perl as a DSO is known to fail on most platforms *
*          We recommend linking mod_perl static instead         *
EOF
    print "*" x 65, $/;
    my $ans = prompt("Continue?", "n");
    if($ans =~ /^n$/i) {
        print "Aborting build process\n";
        exit;
    }
}

if ($USE_APXS) {
    if(-e $USE_APXS and !(-d _)) {
        $WITH_APXS = $USE_APXS;
    }
    if(not -x $WITH_APXS and $USE_APXS and $APACHE_PREFIX) {
	for (qw(sbin bin)) {
	    last if -e ($WITH_APXS = "$APACHE_PREFIX/$_/apxs");
	}
    }
    unless (-x $WITH_APXS) {
	chomp($WITH_APXS = `which apxs`);
    }

    print "Will configure via APXS";
    print " (apxs=$WITH_APXS)" if $WITH_APXS;
    print "\n";
    ++$NO_HTTPD;
}

system_sanity_check();

if ($PERL_USELARGEFILES and $] >= 5.006) {
    $PERL_EXTRA_CFLAGS .= " $Config{ccflags}";
}

# apache-1.3.xx won't compile with -D_GNU_SOURCE
$PERL_EXTRA_CFLAGS =~ s/-D_GNU_SOURCE//;

if ($USE_APACI) {
    print "Will configure via APACI";
    if($USE_DSO) {
        print " (DSO enabled)";
    }
    $NO_HTTPD = 1 if $PREP_HTTPD;
    print "\n";
}

@ARGV = @mm_args;
$STATIC = 0 if $DYNAMIC;
$Configuration = $CONFIG || "Configuration";

for (keys %callback_alias) {
    $callback_hooks{$callback_alias{$_}}++ 
       if $callback_hooks{$_};
}

if($EVERYTHING) {
    @callback_hooks{qw(PERL_STACKED_HANDLERS PERL_METHOD_HANDLERS)} = (1) x 2;
    for(qw(ALL_HOOKS PERL_SSI PERL_SECTIONS PERL_DIRECTIVE_HANDLERS 
	   PERL_LOG_API PERL_URI_API PERL_UTIL_API PERL_TABLE_API PERL_FILE_API)) {
       $$_ = 1;
    }
}

if($ALL_HOOKS) {
    for (@callback_hooks) {
	next if /(Api|Table|Handler)s?$/i;
	$callback_hooks{$_}++;
    }
}

if($DYNAMIC) {
    $PERL_DIRECTIVE_HANDLERS = $PERL_TABLE_API = $PERL_FILE_API =
	$PERL_LOG_API = $PERL_URI_API = $PERL_UTIL_API = 1;
}

my @xs_modules = qw{
Apache Apache::Constants
};

if($Is_Win32) {
    $NO_HTTPD = 1;
    $PERL_DIRECTIVE_HANDLERS = 1;
} 


unless ($NO_HTTPD && !$PREP_HTTPD) {
for $src_dir ($APACHE_SRC, <../apache*/src>, 
    <../stronghold*/src>, </usr/local/stronghold*/src>,
					"../src", "./src")
{
    next unless -d $src_dir;
    next if $seen{$src_dir}++;
    next unless $vers = httpd_version($src_dir);
    unless(exists $vers_map{$vers}) {
	print STDERR "Apache version '$vers' unsupported\n";
	next;
    }
    $mft_map{$src_dir} = $vers_map{$vers};
    #print STDERR "$src_dir -> $vers_map{$vers}\n";
    push @adirs, $src_dir;
    $modified{$src_dir} = (stat($src_dir))[9];
    last if $DO_HTTPD;
}

unless (@adirs) {
    print "Enter `q' to stop search\n";
    while(1) {
       print "Please tell me where I can find your apache src\n" ; 
       $src_dir = prompt("", $APACHE_SRC_DEFAULT);
       last if $src_dir eq "q";
	if(-d $src_dir) {
	    push(@adirs, $src_dir);
	    $mft_map{$src_dir} = $vers_map{httpd_version($src_dir)};
	    last;
	}
	else {
	    print "Can't stat `$src_dir'\n";
	}
    }
}

}

	if($PERL_EXTRA_CFLAGS) {
	    $PERL_EXTRA_CFLAGS = join(" ", split(",",  $PERL_EXTRA_CFLAGS));
	    $PERL_EXTRA_CFLAGS =~ s/\s+/ /g;
	}

	if($PERL_DEBUG) {
	    my $lib = "$Config{archlibexp}/CORE/libperld$Config{lib_ext}";
	    if (-e $lib) {
		$LIBPERL = "-lperld";
		$libperl = " -- $LIBPERL";
	    }
	    $PERL_EXTRA_CFLAGS .= " -g";
	    $PERL_TRACE=1;
	    $PERL_DESTRUCT_LEVEL=2;
	    print "DEBUG mode...\n";
	    print "...adding `-g' to EXTRA_CFLAGS\n";
	    print "...turning on PERL_TRACE\n";
	    print "...setting PERL_DESTRUCT_LEVEL=2\n";
	    print "...linking against libperld\n" if $libperl;
	    sleep(1);
	}

	$PERL_EXTRA_CFLAGS .= " -DPERL_DESTRUCT_LEVEL=$PERL_DESTRUCT_LEVEL"
	    if $PERL_DESTRUCT_LEVEL;

for $adir (sort {$modified{$b} <=> $modified{$a}} @adirs) {
    $conf = "$adir/$Configuration";
    $httpd_h = asrc($adir)."/httpd.h";

    if (-e $httpd_h) {
	unless($NO_HTTPD and not $DYNAMIC and not $PREP_HTTPD) {
	    unless($DO_HTTPD) {
		$ans = prompt("Configure mod_perl with $adir ?", "y");
		next unless $ans =~ /^y$/i;
	    }
	    $APACHE_SRC = $adir;
	    $IsBenSSL = -e "$adir/apache_ssl.c";
	    last unless(-e $conf || -e "$conf.tmpl"); #building from 'make offsite-tar' 
	}
	#++$NO_HTTPD if $USE_APACI;
	my $mmn = magic_number($APACHE_SRC);
	if(($mmn < MMN_130) and $USE_APACI) { #1.3.0
	    print "Sorry, need 1.3.0+ for USE_APACI\n";
	    $USE_APACI = $USE_DSO = 0;
	    
	}
	for my $api (qw(LOG URI UTIL FILE TABLE)) {
	    local $_ = join "_", "PERL", $api, "API";
	    if(($mmn < MMN_130) and $$_) { #1.3.0
		$$_ = 0;
		$cant_hook{$_} = "(need 1.3.0 or higher)";
	    }
	}
	if($USE_DSO and $PERL_SSI) {
	    $PERL_SSI=0;
	    $cant_hook{PERL_SSI} = "(doesn't work w/ USE_DSO=1)";
	}
	unless ($DO_HTTPD or $NO_HTTPD) {
	    $ans = prompt("Shall I build httpd in $adir for you?", "y");
	    ++$NO_HTTPD, ++$PREP_HTTPD unless $ans =~ /^y$/i;
	}

	if($NO_HTTPD) {
	    #must generate Makefile.config for 1.3bx
	    unless (-e "$adir/Makefile.config") {
		my $cfgfile = $CONFIG ? $CONFIG : "Configuration";
		print "(cd $adir && ./Configure -file $cfgfile)";
	    }
	}

	#copy the source files
	if(!$NO_HTTPD or $USE_APACI or $PREP_HTTPD) {
	    mkpath "$adir/modules/perl";
	    #ignore make's output here
	    `(cd $adir/modules/perl && make clean 2> /dev/null)`;

	    local(*MANI);
	    open MANI, "MANIFEST" or die "open MANIFEST $!";
	    my $atopdir = dirname($adir);

	    unlink "$atopdir/perlxsi.c";
	    #only rm and cp files mod_perl ships with
	    while(<MANI>) {
		next unless m,^src/modules/perl/,; chomp;
		#print "rm -f $adir/$_\n";
		unlink "$atopdir/$_";
		next if not m,.+\.(xs|c|h)$, and $USE_APACI;
		next if $DYNAMIC and /\.xs$/;
		#print "cp $_ $atopdir/$_\n" if $USE_APACI;
		my $dest = "$atopdir/$_";
		cp $_, $dest;
		#$mani_src{$_}++;
	    }
	    close MANI;

	    cp "src/modules/perl/mod_perl_version.h",
	       "$atopdir/src/modules/perl/mod_perl_version.h";

	    if($USE_APACI) {
		open MANI, "MANIFEST" or die "open MANIFEST $!";
		while(<MANI>) {
		    next unless m,^apaci/,; chomp;
                    s/\.PL$//;
		    (my $to = $_) =~ s,^apaci/,src/modules/perl/,;
		    unlink "$atopdir/$to";
		    print "cp $_ $atopdir/$to\n";
		    my $dest = "$atopdir/$to";
		    cp $_, $dest;
		    chmod 0755, $dest if -x $_;
		}
		close MANI;
	    }
	}

	($APACHE_ROOT = $APACHE_SRC) =~ s,/src/?$,,;

	last if $NO_HTTPD; # or $USE_APACI;

	unless(-e "src/Configuration" and (-M "src/Configuration" < -M $conf) and not $USE_APACI) {
	    unless(-e $conf) {
		cp "$conf.tmpl", $conf;
	    }
	    cp $conf, "src/Configuration";
	    $conf = "src/Configuration";

	    conf_fixup("$adir/Makefile.tmpl", $conf);
	}
    }

    if ($NO_HTTPD) {

    }
    elsif($USE_APACI) {
	#take care of things later
    }
    else {
	$conf = "src/Configuration";
	my($dash_make, $cfgfile);
	$dash_make = " -make $PWD/src/$mft_map{$adir} "
	    if $can_dash_make{asrc $adir} and $mft_map{$adir};
	#print STDERR "(cd $adir; ./Configure${dash_make} -file $PWD/$conf)\n";
	$cfgfile = $CONFIG ? $CONFIG : "$PWD/$conf";
	$dash_make ||= "";
	system "(cd $adir && ./Configure${dash_make} -file $cfgfile)";

	open FH, "$APACHE_SRC/Makefile" or 
	    die "can't open $APACHE_SRC/Makefile $!";
	while(<FH>) {
	    $SSL_BASE  ||= $1 if /^\s*SSL_BASE\s*=\s*(.*)/;
	    $EXTRA_CFLAGS = $1 if /CFLAGS1\s*=\s*(.*)/;
	    $SSLINCS = $1 if /SSLINCS\s*=\s*(.*)/;
	}
	close FH;

	if($SSL_BASE) {
	    $SSL_INCLUDE = " -I$SSL_BASE/include ";
	    $SSL_CFLAGS = "-DAPACHE_SSL $SSL_INCLUDE";
	}

	#stronghold
	if($SSLINCS) {
	    $SSL_INCLUDE = " $SSLINCS ";
	    $SSL_CFLAGS = "-DAPACHE_SSL $SSL_INCLUDE";
	}
    }
    print "EXTRA_CFLAGS: $EXTRA_CFLAGS\n" if $EXTRA_CFLAGS;
    print "SSL_CFLAGS: $SSL_CFLAGS\n" if $SSL_CFLAGS;
    last if $APACHE_SRC;
}

if($PERL_DIRECTIVE_HANDLERS) {
    push @xs_modules, "Apache::ModuleConfig";
    $callback_hooks{PERL_DIRECTIVE_HANDLERS} = 1;
}

#if($PERL_RUN_XS or $experimental{PERL_RUN_XS} > 1) {
if (0) {
    my $mmn    = $USE_APXS ? MMN_130 : magic_number($APACHE_SRC);
    if($mmn >= MMN_130) {
	push @xs_modules, "Apache::PerlRunXS";
    }
    else {
	$PERL_RUN_XS = 0;
	$experimental{PERL_RUN_XS} = 0; 
	print "Sorry, need 1.3.0+ for Apache::PerlRunXS\n";
    }
}
for (qw(Log URI Util Connection Server File Table)) {
    my $s = "PERL_".uc($_)."_API";
    if($$s or $Is_Win32) {
	push @xs_modules, "Apache::$_";
	$callback_hooks{$s} = 1;
    }
}

my @xs_mod_snames = map { (my $s = $_) =~ s/.*:://; $s } @xs_modules;

win32_setup() if $Is_Win32;

if($DYNAMIC) {
    print "Will build Apache::* extensions dynamic\n";
    for (@xs_mod_snames) {
	cp "src/modules/perl/${_}.xs", "${_}/${_}.xs";
    }
}

if($APACHE_SRC or $USE_APXS) {
    ++$STATIC if grep { $_ eq lc($Config{osname}) } qw(aix svr4 unixware);

    my $mmn    = $USE_APXS ? MMN_130 : magic_number($APACHE_SRC);
    my $httpdv = $USE_APXS ? 130     : httpd_version($APACHE_SRC,1);

    unless($httpdv >= 130) {
	phat_warn("Apache Version 1.3.0 required, aborting...");
	exit(1);
    }

    if($httpdv >= 130) {
	if($callback_hooks{PERL_CHILD_INIT}) {
	    $My::child_init++;
	}
    }
    else {
	$callback_hooks{PERL_CHILD_INIT} = 0;
	$cant_hook{PERL_CHILD_INIT} = 
	    "(need 1.3.0 or higher)";
    }

    if($mmn >= 19970728) {
	$callback_hooks{PERL_CHILD_EXIT} = $My::child_exit =
        $callback_hooks{PERL_CHILD_INIT} = $My::child_init = 1;
    }
    else {
	$callback_hooks{PERL_CHILD_EXIT} = 0;
	$cant_hook{PERL_CHILD_EXIT} = 
	    "(need 1.3.0 or higher)";
    }

    unless($mmn >= 19970825) {
	$callback_hooks{PERL_POST_READ_REQUEST} = 0;
	$cant_hook{PERL_POST_READ_REQUEST} = 
	    "(need 1.3.0 or higher)";
    }

    setup_for_static() unless $USE_APXS;

    iedit "$APACHE_SRC/modules/perl/Makefile",
    "s!^PERL\\s*=.*!PERL=$Config{'perlpath'}!" unless $USE_APACI or $USE_APXS;

    for (@callback_hooks) {
	($k,$v) = ($_,$callback_hooks{$_});

	unless ($USE_APACI or $USE_APXS) {
	    iedit "$APACHE_SRC/modules/perl/Makefile", "s/^$k /#$k /" if $v;
	}

	$why = ($cant_hook{$k} || "(enable with $k=1)") unless $v;
	$k =~ s/([A-Z]+)/ucfirst(lc($1))/ge;
	$k =~ s/_//g;
	$k .= "Handler" unless $k =~ /(Api|Table|Handler)s?$/;
	push @mod_perl_hooks, $k;
	print $k . '.' x (28 - length($k));
	print $v ? "enabled\n" : "disabled $why\n";
    }

    unless($httpdv >= 120) {
	$PERL_SECTIONS = $PERL_SSI = 0;
	$cant_hook{PERL_SECTIONS} = $cant_hook{PERL_SSI} = 
	    "(need 1.2.0 or higher)";
    }

    $PERL_SSI = 0 if $Is_Win32;
    unless ($Is_Win32) {
      for (qw(PERL_SECTIONS PERL_SSI), keys %experimental) {
	$k = $_;

	if($experimental{$_}) {
	    next unless $experimental{$_} > 1;
	    print $k . '.' x (28 - length($k));
	    print "enabled (experimental)";
	}
	else {
	    $why = ($cant_hook{$_} || "(enable with $k=1)") unless $$_;
	    $k =~ s/([A-Z]+)/ucfirst(lc($1))/ge;
	    $k =~ s/_//g;
	    $k =~ s/Ssi$/SSI/; #*shrug*
	    push @mod_perl_hooks, $k;
	    print $k . '.' x (28 - length($k));
	    print $$_ ? "enabled" : "disabled $why\n";
	}

	print "\n";
	unless ($USE_APACI or $USE_APXS) {
	    iedit "$APACHE_SRC/modules/perl/Makefile", "s/^($_) /#\$1 /"
		if $$_;
	}
      }
    }
    unless ($USE_APACI or $USE_APXS) {
	iedit "$APACHE_SRC/modules/perl/Makefile", "s/^#TRACE/TRACE/" if $PERL_TRACE;
    }

    my $ssl_name = is_ssl();
    if($ssl_name) {
	print "I see you are building with $ssl_name,\nI'll set the SSL flags in mod_perl's Makefile\n";

	if($ssl_name =~ /stronghold/i) {
	    my $skey;
	    my $lfile;
	    my $conf = "$APACHE_SRC/../conf/httpd.conf";
	    if(-e $conf) {
		open FH, $conf;
		while(<FH>) {
		    chomp;
		    if(/^StrongholdKey/) {
			$skey = $_;
			last;
		    }
		    elsif(s/^StrongholdLicenseFile\s+//) {
			$lfile = $_;
			unless ($lfile =~ m:^/:) {
			    $lfile = "$PWD/$APACHE_SRC/../$lfile";
			}
		    }
		}
		close FH;
	    }

	    if($skey) {
		$StrongholdKey = $skey;
		print "Using $skey for 'make test'\n";
	    }
	    elsif(-e $lfile) {
		$StrongholdKey = join " ", 
		"StrongholdLicenseFile", $lfile;
		print "Using $StrongholdKey for 'make test'\n";
	    }
	    else {
		print "Before running `make test', ",
		"you must add your `StrongholdLicenseFile' to t/conf/httpd.conf\n"; 
	    }
	}

	unless ($USE_APACI or $USE_APXS) {
	    iedit "$APACHE_SRC/modules/perl/Makefile",	
	    "s:^#APACHE_SSL.*:APACHE_SSL = $SSL_CFLAGS:";
	}
    }

    #my $incdir = ($mmn >= 19970825) ? "../../main" : "../..";
    my $minc = asrc($APACHE_SRC);
    $minc =~ /(main|include)/;
    my $incdir = $1 ? "../../$1" : "../..";
    my $edit_note = quotemeta(<<EOF);
#### Start of Makefile.PL created section ####
#---------------------------------------------------------------------
# This Makefile is derived from:
# $PWD/src/modules/perl/Makefile 
# which comes with the mod_perl distribution and 
# written by mod_perl's Makefile.PL.
# Rerunning Makefile.PL overwrites this file. Consequently...

# DO NOT EDIT THIS FILES, EDIT
#    $PWD/src/modules/perl/Makefile
# INSTEAD
#---------------------------------------------------------------------

MOD_PERL_VERSION = $VERSION

INCDIR = $incdir

EOF

    unless ($USE_APACI or $USE_APXS) {
	iedit "$APACHE_SRC/modules/perl/Makefile", "s/^#__ORIGINAL__/$edit_note/";
    }

    if($mmn >= 19970912 and not $USE_APACI and not $USE_APXS and not $Is_Win32) {     #1.3b1
	system "cat $APACHE_SRC/Makefile.config $APACHE_SRC/modules/perl/Makefile > /tmp/mpmf.$$";
	system "mv /tmp/mpmf.$$ $APACHE_SRC/modules/perl/Makefile";
    }

    if($callback_hooks{PERL_TRANS}) {
	push @test_pre_init, 
	"\t", '$(CP) t/conf/mod_perl_srm.conf t/conf/srm.conf', "\n";
    }
    unless ($USE_APXS) {
	unless (-l "t/httpd" or $Is_Win32) {
	    system "$Config{lns} $APACHE_SRC/httpd t/httpd";
	}
	write_extra_tests();
    }
}

unless (-e "t/net/config.pl") {
    cp "t/net/config.pl.dist", "t/net/config.pl";
}

init_config_pl() if $Is_Win32;

my (%win32_path);
if ($win32_auto) {
  require File::Spec;
  win32_inc_and_lib();
  win32_fix_dsp();
}

write_my_config($APACHE_SRC);

unless($Is_Win32 or -e "t/conf/httpd.conf" or ($NO_HTTPD && !$PREP_HTTPD)) {
    init_tests_and_config();
}

init_tests_and_config() if $USE_APXS;

sub init_config_pl {
    my $mmn = magic_number($APACHE_SRC) || 0;

    my $hf = FileHandle->new(">>t/net/config.pl") or 
      die "can't open t/net/config.pl $!";

    my $apaci_cfg = APACI->init;

    my($k,$v);
    my(%all) = %callback_hooks;
    while (($k,$v) = each %experimental) {
        $all{$k} = ($experimental{$k} > 1) ? 1 : 0;
    }
    print $hf "%callback_hooks = (\n";
    while (($k,$v) = each %all) {
        print $hf "   $k => $v,\n";
        my $yes_no = $v ? "yes" : "no";
        print $apaci_cfg "$k = $yes_no\n" if $apaci_cfg;
    }
    print $hf "   MMN => $mmn,\n";
    print $hf "   USE_DSO => 1,\n" if $USE_DSO;
    print $hf ");\n1;\n";
    $hf->close;
    $apaci_cfg->close if $apaci_cfg;
}

sub init_tests_and_config {
    local *FH;
    open FH, ">t/conf/dev-null";
    print FH "#mod_ssl has a problem with /dev/null\n";
    close FH;

    cp "t/conf/httpd.conf-dist", "t/conf/httpd.conf";
    chmod 0644, "t/conf/httpd.conf";

    $uid = $>;
    $gid = $);

    #use only first value if $) contains more than one
    $gid =~ s/^(\d+).*$/$1/;

    $User  = $Is_Win32 ? "nobody" : 
      $ENV{APACHE_USER} || (getpwuid($uid) || "#$uid");
    $Group = $Is_Win32 ? "nogroup" : 
      $ENV{APACHE_GROUP} || (getgrgid($gid) || "#$gid");

    if($User eq "root") {
	my $other = (getpwnam('nobody'))[0];
	$User = $other if $other;
    } 
    if($User eq "root") {
	print "Cannot run tests as User `$User'\n";
        $User = prompt("Which User?", "nobody");
	$Group = prompt("Which Group?", $Group); 
    }
    print STDERR "Will run tests as User: '$User' Group: '$Group'\n";

    if($Port != $PORT) {
	iedit "t/conf/httpd.conf", "s/^(Port) .*/\$1 $PORT/";
	iedit "t/net/config.pl", "s/$Port/$PORT/;";
    }
    if($experimental{PERL_SAFE_STARTUP} > 1) {
	if($experimental{PERL_DEFAULT_OPMASK} < 2) {
	    iedit "t/conf/httpd.conf", "s/^#(PerlOpmask)/\$1/";
	}
    }

    init_config_pl();

    if($USE_APACI and not $PREP_HTTPD and not $USE_APXS) {
	my $shrpenv = $Config{shrpenv} || "";
	$shrpenv .= ' ' if $shrpenv;
	my $cmd = "CC=\"${shrpenv}$Config{cc}\" ";

	if($PERL_EXTRA_CFLAGS) {
	    $cmd .= qq(CFLAGS="$PERL_EXTRA_CFLAGS" );
	}    
	
	if ($USE_DSO) {
            # override apache's notion of this flag
            $cmd .= qq(LDFLAGS_SHLIB_EXPORT="$Config{ccdlflags}" );

            #if Perl is linked with -lpthread, httpd needs tobe too
            if ($Config{libs} =~ /($thrlib)/) {
                $PERL_EXTRA_LIBS .= " $1";
            }
	}
        if ($PERL_EXTRA_LIBS) {
            $cmd .= qq(LIBS="$PERL_EXTRA_LIBS" );
        }
	$cmd .= "./configure " .
		  "--activate-module=src/modules/perl/libperl.a";
   
        # Do not disable the rule EXPAT for Stronghold, since this
        # rule is not implementated yet and breaks the configure process.
        if(is_ssl() !~ /stronghold/i) {
           $cmd .= " --disable-rule=EXPAT";
        }

	if($USE_DSO) {
	    $cmd .= " --enable-shared=perl";
	}
	if($APACI_ARGS) {
	    $cmd .= " " . join " ", split(',', $APACI_ARGS);
	}
	if($APACHE_PREFIX and $APACI_ARGS !~ /--prefix=/)  {
	    $cmd .= " --prefix=$APACHE_PREFIX";
	}
	if ($APACI_ARGS =~ /--target=(\S+)/) {
	    $TARGET = $1;
	} 
	if($ADD_MODULE) {
	    for (split ",", $ADD_MODULE) {
		if(/^([a-zA-Z0-9][a-zA-Z0-9_]+)$/) {
		    $cmd .= " --enable-module=$1";
		}
		elsif(m:(src/modules/[^/]+/[^/]+)$:) {
		    $cmd .= " --activate-module=$1";
		}
	    }
	}
	print "(cd $APACHE_ROOT && $cmd)\n";
	system "(cd $APACHE_ROOT && $cmd)";
    }

    if($USE_APXS) {
	my $cmd = "./configure --with-perl=$^X";
	$cmd .= " --with-apxs=$WITH_APXS" if $WITH_APXS;
	system "(cd apaci && $cmd)";
    }

    #expand ./t to full path
    iedit "t/conf/httpd.conf", "s: \./t(\\S*): $PWD/t\$1:";

    for (qw(User Group)) {
        $$_ = qq{"$$_"} if $$_ =~ /\s/; # User takes one parameter
	iedit "t/conf/httpd.conf", "s/^$_ .*/$_ $$_/"; 
    }
    conf_append(<<EOF) if $IsBenSSL;
SSLDisable
SSLCacheServerPort $SSLCacheServerPort
SSLCacheServerPath /tmp  
EOF
    conf_append($StrongholdKey) if $StrongholdKey;
    if(is_ssl() =~ /stronghold/i) {
	iedit "t/conf/httpd.conf", "s:^SSL:#SSL:";
    }
    #phooey!
    my $v = httpd_version($APACHE_SRC, 1);
    my $mmn = magic_number($APACHE_SRC) || 0;

    conf_append("LockFile logs/mod_perl.lock") if $v >= 121 or $mmn >= MMN_130;
    conf_append("PerlChildInitHandler My::child_init") if $My::child_init;
    conf_append("PerlChildExitHandler My::child_exit") if $My::child_exit;
    conf_append("PerlTransHandler My::ProxyTest") 
    if $callback_hooks{PERL_TRANS} and 
	$callback_hooks{PERL_STACKED_HANDLERS} and
	    $mmn > 19980270 and $Is_dougm;
	    
    conf_append(<<EOF) if $callback_hooks{PERL_STACKED_HANDLERS}; 
<Location /chain>
SetHandler perl-script
PerlHandler Stacked::one Stacked::two Stacked::three Stacked::four
</Location>
EOF
}

{
    (my $pmv = $VERSION) =~ s/_//g;
    $pmv =~ s/-dev$//;
    my $hooks = "@mod_perl_hooks";
    my $dummy = "hooks=`$hooks'\n" unless $hooks;
    cp "lib/mod_perl_hooks.pm.PL", "lib/mod_perl_hooks.pm"; 

    if ($Is_Win32) {
      my @args = ($^X, '-spi.bak', '-e', "\"s/sub mod_perl::hooks.*/sub mod_perl::hooks { qw($hooks) }/\"", 'lib/mod_perl_hooks.pm');
      system(@args) == 0 or die "@args failed\n";
    }
    iedit "lib/mod_perl_hooks.pm", 
    qq(s/sub mod_perl::hooks.*/sub mod_perl::hooks { qw($hooks) }/);

    require "lib/mod_perl_hooks.pm";
    my @list = mod_perl::hooks();

    unless ($Is_Cygwin) { # test doesn't seem to be needed, works for me (Per Einar)
	@list == @mod_perl_hooks or die "Edit of lib/mod_perl_hooks.pm failed $!\n";
    }

    unlink $Is_Win32 ? "lib/mod_perl_hooks.pm.bak" : "lib/mod_perl_hooks.pm~";
}

#checking for LWP code, borrowed from LWP's own Makefile.PL :-)
unless ($Is_Win32) {
    print "Checking CGI.pm VERSION..........";
    eval {
	require CGI;
    };
    if($CGI::VERSION >= 2.39) {
	print "ok\n";
    }
    else {
	print "I suggest upgrading from $CGI::VERSION to 2.39+\n";
	sleep 2;
    }
    print "Checking for LWP::UserAgent......";
    eval {
	require LWP::UserAgent;
    };
    if ($@) {
	$no_lwp++;
	$missing_modules++;
	print "failed\n";
	print <<EOT;
$@
The libwww-perl library is needed to run the test suite.
Installation of this library is recommended, but not required.   

EOT
    sleep(2);  # Don't hurry too much
    } else {
	print "ok\n";
    }
    print "Checking for HTML::HeadParser....";
    eval {
	require HTML::HeadParser;
    };
    if ($@) {
	$no_lwp++;
	$missing_modules++;
	print "failed\n";
	print <<EOT;
$@
The HTML-Parser package is needed (by libwww-perl) to run the test suite.
EOT
    sleep(2);  # Don't hurry too much
    } else {
	print "ok\n";
    }
}

sub is_ssl {
    my $d = shift || $APACHE_SRC;
    for (keys %SSL) {
	#warn "looking for $APACHE_SRC/$_\n";
	return $SSL{$_} if -e "$d/$_";
    }
    return 0;
}
  
sub write_extra_tests {
    #ensure we can find blib/ 
    local *FH;
    open FH, ">t/docs/blib.pl";
    print FH "use lib qw(\n", 
    (map { "$PWD/$_\n" } qw(blib/lib blib/arch)),
    ");\n1;\n";
    close FH;

    for my $f (qw(.htaccess hooks.txt)) {
	open FH, ">t/docs/$f";
	print FH " ";
	close FH;
	chmod 0666, "t/docs/$f";#make sure httpd can write to it
    }

    if($PERL_SSI) {
	cp "t/modules/ssi.test", "t/modules/ssi.t";
    } else {
      unlink "t/modules/ssi.t";	# might be there from prior run
    }

    mkdir "t/docs/subr", 0755;
    if ($Is_Win32) {
      open FH, ">t/docs/subr/index.html" 
	or die "Cannot open t/docs/subr/index.html: $!";
      print FH scalar(localtime);
      close FH;
    }
    else {
      system "date > t/docs/subr/index.html";
    }

    return unless 
	$callback_hooks{PERL_STACKED_HANDLERS} 
    and $callback_hooks{PERL_FIXUP};
    local *FH;
    my $meth_test;
    if($callback_hooks{PERL_METHOD_HANDLERS}) {
	$meth_test = <<'EOF';
#see startup.pl
PerlFixupHandler MyClass->method 
PerlFixupHandler $MyClass::Object->method 
PerlFixupHandler MyClass 
PerlFixupHandler LoadClass
PerlFixupHandler LoadClass->method
EOF
    }
    my $dir = "t/docs/stacked";
    mkdir $dir, 0755;
    cp "t/docs/test.html", $dir;
    open FH, ">$dir/.htaccess";
    print FH <<EOF;
    $meth_test
PerlFixupHandler  Apache::Constants::OK Apache::Constants::DECLINED MyClass::method
EOF
        close FH;
}

cp "t/conf/httpd.conf", "t/httpd.conf";

if($ENV{TEST_PERL_DIRECTIVES}) {
    #push @DIR, 't/TestDirectives';
    if($Is_dougm and $USE_THREADS) {
	delete $ENV{TEST_PERL_DIRECTIVES};
    }
    else {
	system "(cd t/TestDirectives && $^X Makefile.PL)";
    }
}

$TARGET ||= (is_ssl() ? "httpsd" : "httpd");

WriteMakefile(
    #DIR => \@DIR,
    NAME    => "mod_perl",
    VERSION => $VERSION,
    ($] < 5.005 ? () :
      (
        ABSTRACT => 'Embed a Perl interpreter in the Apache HTTP server',
        AUTHOR   => 'Doug MacEachern <dougm@pobox.com>',
      )),
    #should override `CCFLAGS', can't with older perls
    #CCDLFLAGS => "$Config{ccdlflags} $EXTRA_CFLAGS", 
    DEFINE => $EXTRA_CFLAGS, 
    macro   => {
        PERL => $Config{'perlpath'},
	OPCODE_FILE => "src/opcodes.txt",
        APACHE_ROOT => $APACHE_ROOT,
        APACHE_SRC => $APACHE_SRC,
	ARCHNAME => $Config{archname},
	HTTPD => $TARGET,
	PORT => $PORT,
	PWD => $PWD,
        PERL5LIB => "PERL5LIB=$ENV{PERL5LIB}",
	SHRPENV => $Config{shrpenv},
	CVSROOT => 'cvs.apache.org:/home/cvs',
    },
    'dist'    => {
	COMPRESS=> 'gzip -9f', SUFFIX=>'gz',
	CI => qq(ci -u -m\\"See Changes file\\"),
    },
    clean   => {
	FILES	=> "@do_clean",
    }
);

print "*** BSDI users: be sure to read the INSTALL `Notes' section ***\n"
    if $Config{osname} =~ /bsdos/i;

cleanup_for_static();

sub MY::dist_basics {
    my $self = shift;
    my $string = $self->MM::dist_basics;
    if($USE_APXS) {
	$string =~ s/(distclean\s+::\s+)/$1 apxs_distclean /;
    }
    return $string;
}

sub MY::clean {
    my $self = shift;
    my $string = $self->MM::clean(@_);
    if ($win32_auto) {
      $string .= sprintf 
	qq{\tmsdev src\\modules\\win32\\mod_perl.dsp \\\n} .
	  qq{\t/MAKE "mod_perl - Win32 %s" /CLEAN\n}, 
	  ($win32_args{DEBUG} == 1) ? 'Debug' : 'Release';
      return $string;
    }
    unless($NO_HTTPD) {
	my $asrc = asrc($APACHE_SRC, "http_main.c");
	return $string unless $APACHE_SRC and -e "$asrc/http_main.c";
	$string .= "\t-cd \$(APACHE_SRC) && \$(MAKE) clean\n";
    }
    if($USE_APXS) {
	$string .= "\t-cd ./apaci && \$(MAKE) clean\n";
    }
    $string;
}

sub MY::install {
    my $self = shift;
    my $string = $self->MM::install;
    my $add = "";
    if($USE_APXS) {
	$add = "apxs_install";
    }
    elsif ($win32_auto and 
           ($win32_args{INSTALL_DLL} or $win32_args{INSTALL_LIB})) {
      $add = 'amp_install';
    }
    elsif($USE_APACI) {
	if($APACI_ARGS =~ /--prefix=/ or $APACHE_PREFIX) {
	    $add = "apaci_install";
	}
    }
    if($add and (!$NO_HTTPD and !$PREP_HTTPD) or $USE_APXS or $win32_auto) {
	$string =~ s/(pure_install\s+)(.*)/$1 $add $2/;
    }
    return $string;
}

sub MY::top_targets {
    my $self = shift;
    my $string = $self->MM::top_targets;
    return $string unless $USE_APXS or $USE_APACI or $APACHE_SRC or $win32_auto;

    if ($win32_auto) {
      $string =~ s/(pure_all\s+::.*\s+subdirs\s+)(.*)/$1 amp_dll $2/;
      $string .= sprintf qq{\namp_dll:\n} . 
	qq{\tmsdev src\\modules\\win32\\mod_perl.dsp \\\n} .
	  qq{\t/MAKE "mod_perl - Win32 %s" /USEENV\n}, 
	  ($win32_args{DEBUG} == 1) ? 'Debug' : 'Release';
      if ($win32_args{INSTALL_DLL}) {
	$string .= sprintf qq{\namp_install:\n\t\$(CP) "%s" "%s"}, 
	"$win32_path{MODPERL_LIB}/mod_perl.so", 
	$win32_args{INSTALL_DLL} .
	  ($win32_args{APACHE_VERS} < 1315 ?
	   '/ApacheModulePerl.dll' : '/mod_perl.so');
      }
      if ($win32_args{INSTALL_LIB}) {
        $string .= sprintf qq{\n\t\$(CP) "%s" "%s"}, 
          "$win32_path{MODPERL_LIB}/mod_perl.lib", 
            $win32_args{INSTALL_LIB} . '/mod_perl.lib';
      }
      return $string;
    }

    if($USE_APXS) {
	    $string =~ s/(pure_all\s+::\s+)(.*)/$1 apxs_libperl $2/;
    }
    elsif($USE_APACI and !$PREP_HTTPD) {
	$string =~ s/(pure_all\s+::\s+)(.*)/$1 apaci_httpd $2/;
    }
    elsif($APACHE_SRC) {
	return $string unless -f "$APACHE_SRC/$Configuration";
	my $asrc = asrc($APACHE_SRC, "http_main.c");
	if(-e "$asrc/http_main.c" and !$NO_HTTPD) {
	    $string =~ s/(pure_all\s+::\s+)(.*)/$1 apache_httpd $2/;
	}
    }

    $string .= <<'EOF';

gen_exports:
	$(PERL) -I./lib -MExtUtils::testlib -MApache::Constants::Exports \
	-e 'Apache::Constants::Exports->gen_ctags' > Exports.c

gen_op_mask:
	$(PERL) -MExtUtils::testlib -MApache::Opcode \
	-e 'Apache::Opcode->gen_op_mask' -- $(OPCODE_FILE) > op_mask.c

update_op_mask: gen_op_mask
	@$(RM_F) $(APACHE_SRC)/modules/perl/mod_perl_opmask.o
	$(CP) op_mask.c $(APACHE_SRC)/modules/perl/op_mask.c

apxs_distclean:
	(cd ./apaci && $(MAKE) distclean)

apxs_libperl:
	(cd ./apaci && $(PERL5LIB) $(MAKE))

apxs_install: apxs_libperl
	(cd ./apaci && $(MAKE) install;)

apache_httpd: $(APACHE_SRC)/Makefile.tmpl
	(cd $(APACHE_SRC) && $(PERL5LIB) $(SHRPENV) $(MAKE) CC="$(CC)";)

apaci_httpd: 
	(cd $(APACHE_ROOT) && $(PERL5LIB) $(MAKE))

apaci_install: 
	(cd $(APACHE_ROOT) && $(MAKE) install)

tar_Apache:
	(cd $(INSTALLSITELIB)/$(ARCHNAME); \
            $(TAR) -cf $(PWD)/Apache.tar mod_perl.pm Apache.pm Apache auto/Apache; )

offsite-tar:
	$(CP) MANIFEST MANIFEST.orig
	echo src/Makefile.config >> MANIFEST
	$(CP) $(APACHE_SRC)/Makefile.config src/Makefile.config
	mkdir "src/include"
	$(PERL) -e 'for (<$(APACHE_SRC)/include/*.h>) {' \
	-e 'system "$(CP) $$_ src/include/";' \
	-e 's,^$(APACHE_SRC),,;' \
	-e 'system "echo src$$_ >> MANIFEST";' \
	-e '}' 
	$(MAKE) dist
	$(RM_RF) src/include/
	$(RM) src/Makefile.config
	$(MV) MANIFEST.orig MANIFEST

EOF

    $string;
}

sub MY::pasthru {
    return unless $APACHE_SRC;
    my $self = shift;
    chomp(my $str = $self->MM::pasthru);
    join $/, "$str\\", 
    "\t".'APACHE_SRC="$(APACHE_SRC)"\\', 
    "\t".'DEFINE="$(DEFINE)"', 
    "";   
}

sub MY::test {
    my $self = shift;
    my $test = $self->MM::test;
    my $mmn = magic_number($APACHE_SRC);
    return <<'EOF' if $USE_APXS and not $Is_dougm;
test:
	@echo "Can't make test with APXS (yet)"
EOF
    return <<'EOF' if $USE_DSO and ($mmn <= 19980527) and not $Is_dougm;
test:
	@echo "Can't make test with DSO (yet)"
EOF

    my $script = "t/TEST";
    $script .= ".win32" if $Is_Win32;
    my $my_test = $Is_Win32 ? q(

test:	run_tests

) :

q(

test:	pure_all start_httpd run_tests kill_httpd

);
    my $have_so = $USE_DSO || ($APACI_ARGS =~ /--enable-shared=/); 
    push @test_pre_init, "\t", 
    './apaci/load_modules.pl $(APACHE_SRC)', "\n" if $have_so;
 
    join '', @test_pre_init,
    qq(
MP_TEST_SCRIPT=$script
),
    q(
TEST_VERBOSE=0

kill_httpd:
	kill `cat t/logs/httpd.pid`
	@$(RM_F) t/conf/srm.conf
	@$(RM_F) t/logs/mod_perl.lock*
	$(RM_F) t/logs/httpd.pid
	$(RM_F) t/logs/error_log

start_httpd: test_pre_init
	@(cd t/conf; test -f httpd.conf || cp httpd.conf-dist httpd.conf)
	@(cd t/net; test -f config.pl || cp config.pl.dist config.pl)
	@$(TOUCH) t/conf/srm.conf
	$(APACHE_SRC)/$(HTTPD) -f `pwd`/t/conf/httpd.conf -X -d `pwd`/t &
	@echo httpd listening on port $(PORT)
	@echo will write error_log to: t/logs/error_log
	@echo "letting apache warm up...\c"
	@sleep 2
	@echo done

start_httpd_fork:
	$(APACHE_SRC)/$(HTTPD) -f `pwd`/t/conf/httpd.conf -d `pwd`/t

rehttpd:   kill_httpd start_httpd

run_tests:
	$(FULLPERL) $(MP_TEST_SCRIPT) $(TEST_VERBOSE)

),

$my_test,

q(

test_report:
	$(MAKE) test | t/report
);
}

use File::Find;

sub MY::subdirs {
    my $self = shift;
    if($ENV{TEST_PERL_DIRECTIVES}) {
	push @{$self->{DIR}}, "t/TestDirectives";
    }
    $self->MM::subdirs(@_);
}

sub wanted {
    return unless /\.h$/ or /os-inline\.c$/;
    (my $d = $File::Find::dir) =~ s:^\Q$APACHE_SRC::;
    $d =~ s:^/::;

    my $from = "$File::Find::dir/$_";
    my $to   = '$(INST_ARCHLIB)/' . "auto/Apache/include/";
    $to .= "$d/" if $d;
    $to .= $_;

    $My::self->{PM}->{$from} = $to;
}

sub win32_mph {
    return unless /\.h$/ or /os-inline\.c$/;
    (my $d = $File::Find::dir) =~ s:^\Q$MODPERL_SRC::;
    $d =~ s:^/::;
    my $from = "$File::Find::dir/$_";
    my $to   = '$(INST_ARCHLIB)/' . "auto/Apache/include/modules/perl/";
    $to .= "$d/" if $d;
    $to .= $_;

    $My::self->{PM}->{$from} = $to;
}

sub MY::post_initialize {
    my($self) = shift;

    return unless $APACHE_HEADER_INSTALL;
    my($ap_src, $ap_inc);
    if ($APACHE_SRC) {
	$ap_src = $APACHE_SRC;
	$ap_inc = "$ap_src/include";
    }
    elsif ($USE_APXS) {
	#$base = `$WITH_APXS -q INCLUDEDIR`;
	$ap_inc = $ap_src = 'src'; #just install mod_perl headers
    }

    return unless $ap_src and -d $ap_src;

    $My::self = $self;
    {
	local $APACHE_SRC = $ap_src;
	finddepth(\&wanted, $ap_src);
    }
    if ($Is_Win32) {
      	local $MODPERL_SRC = win32_fix_path($PWD) . '/src/modules/perl';
	finddepth(\&win32_mph, $MODPERL_SRC);
    }
    $self->{PM}{"Apache/typemap"} = '$(INST_ARCHLIB)/' . "auto/Apache/typemap";
    $self->{PM}{"apaci/mod_perl.exp"} = '$(INST_ARCHLIB)/' . "auto/Apache/mod_perl.exp";
    for (qw(ap_config_auto.h)) {
	my $from = "$ap_inc/$_";
	my $to = '$(INST_ARCHLIB)/' . "auto/Apache/include/$_";
	unless ($self->{PM}->{$from}) {
	    $self->{PM}->{$from} = $to;
	    my @args = ($Config{perlpath}, '-MExtUtils::Command', 
		        '-e', 'touch', $from);
	    system(@args) == 0
	        or die "system @args failed: $?";
	}
    }

    '';
}

sub MY::postamble {

    return <<'EOF';
cvs_export :
	cvs -d $(CVSROOT) export -rv$(VERSION_SYM) -d$(DISTVNAME) .

cvs_tag :
	cvs -d $(CVSROOT) tag v$(VERSION_SYM) modperl
	@echo update mod_perl.pm VERSION now

EOF
}

#'

sub MY::manifypods {
    my $self = shift;
    my $ver = $self->{VERSION} || "";
    local($_) = $self->MM::manifypods(@_);
    s/pod2man\s*$/pod2man --release mod_perl-$ver/m;
    $_;
}

sub fold_dots {
    my $v = shift;
    $v =~ s/\.//g;
    $v .= "0" if length $v < 3;
    $v;
}

sub vcache {
    my($v,$dir) = @_;
    $vcache{$dir} = fold_dots($v);
}

sub httpd_version {
    my($dir, $vnumber) = @_;
    local $^W=0;
    $dir = asrc($dir) || "";
    if($vnumber) {
	return $vcache{$dir} if $vcache{$dir};
    }
    my $fh = FileHandle->new("$dir/httpd.h") or return;
    my($server, $version, $rest);
    my($fserver, $fversion, $frest);
    my($string, $extra, @vers);
    while(<$fh>) {
	next unless /^#define/;
	s/SERVER_PRODUCT \"/\"Apache/; #1.3.13
	next unless s/^#define\s+SERVER_(BASE|)(VERSION|REVISION)\s+"(.*)\s*".*/$3/;
        unless (m:/:) {
            $_ = "Apache/$_"; #1.3.14, argh
        }
	chomp($string = $_);

	#print STDERR "Examining SERVER_VERSION '$string'...";
	#could be something like:
	#Stronghold-1.4b1-dev Ben-SSL/1.3 Apache/1.1.1 
	@vers = split /\s+/, $string;
	foreach (@vers) {
	    next unless ($fserver,$fversion,$frest) =  
		m,^([^/]+)/(\d\.\d+\.?\d*)([^ ]*),i;
	    #print STDERR "match ($fserver,$fversion,$frest)\n";  
	    if($fserver =~ /Xcert-Sentry/i or $fserver eq "Ben-SSL") {
		$extra ||= $fserver;
		#print STDERR "I see $fserver/$fversion, ok\n";
		next;
	    }

	    if($fserver eq "Apache") {
		($server, $version) = ($fserver, $fversion);
		if($version eq '1.2' and $frest =~ s/^b(\d+).*/$1/) {
		    if($frest >= 8 and is_ssl($dir)) {
			$do_link_swap++;
			$can_dash_make{$dir}++;

			return $vnumber ? vcache($version,$dir) : "NONE";
		    }
		    warn "Apache/1.2b$frest is not supported, upgrade to 1.2.0.\n";
		    return undef;
		}
		elsif($version >= 1.2) {
		    $do_link_swap++ if is_ssl($dir);
		    $can_dash_make{$dir}++;
		    return $vnumber ? vcache($version,$dir) : "NONE";
		}
	    }
	    else {
		#print STDERR "'$fserver/$fversion' unrecognized.\n";
		next;
	    }
	    print STDERR "Found $fserver '$fversion' in $dir/httpd.h\n";
	}
    }
    $fh->close;
    #print STDERR "return $version$extra\n";
    return($version.$extra);
}

use lib "./lib";
use Apache::src ();

sub magic_number {
    my $d = asrc shift;
    my $src = Apache::src->new;
    $src->dir($d);
    return($mcache{$d} = $src->module_magic_number);
}

sub cleanup_for_static {
    return unless $STATIC;
    for (@xs_mod_snames) {
	rename "${_}/${_}.xs.disabled", "${_}/${_}.xs";
    }
}

sub setup_for_static {
    my $d = "$APACHE_SRC/modules/perl";
    my $mf = "$APACHE_SRC/modules/perl/Makefile";
    my @static_src = ();

    unless ($USE_APACI) {
	iedit $mf, "s/(PERL_STATIC_EXTS) =.*/\$1 = $PERL_STATIC_EXTS/"
	    if $PERL_STATIC_EXTS;
    }
    return unless $STATIC;

    cp "Apache/typemap", $d;

    for (@xs_mod_snames) {
	rename "${_}/${_}.xs", "${_}/${_}.xs.disabled" if -e "${_}/${_}.xs";
	push @static_src, "$_.c";
    }

=pod
    my @xs_names = ();
    my @xs_files = ();
    my $dir = "src/modules/perl";
    my $dh = DirHandle->new($dir) or die;

    for my $file ($dh->read) {
	next unless $file =~ /\.xs$/;
	push @xs_names, module_name_from_xs("$dir/$file");
	push @xs_files, $file;
	unless ($mani_src{"$dir/$file"}) {
	    cp "$dir/$file", $d;
	    print "Adding module `$xs_names[-1]' to httpd\n";
	}
    }
    #print "XS_NAMES=@xs_names\n";
    #print "XS_FILES=@xs_files\n";

    #XXX think about this some more
    iedit $mf, "s/^#STATIC_SRC.*/STATIC_SRC = @xs_files/";
    iedit $mf, "s/^#STATIC_EXTS.*/STATIC_EXTS = @xs_names/";

=cut

    unless ($USE_APACI) {
	#XXX: ho,hum, need to generate the whole damn thing 
	#instead of all these frigging iedits.
	if ($DYNAMIC) {
	}
	else {
	    iedit $mf, "s/^#STATIC_SRC.*/STATIC_SRC = @static_src/";
	    iedit $mf, "s/^#STATIC_EXTS.*/STATIC_EXTS = @xs_modules/";
	    iedit $mf, "s/^#STATIC_/STATIC_/";
	}
	#bloody hell, make sucks and so does this.
	#this has only cause a few people pain, enough.
	iedit $mf, "s/ \Q\$(STATIC_SRC)\E/ @static_src/";
    }
}

sub module_name_from_xs {
    my $file = shift;
    my $fh = FileHandle->new($file) or
	die "can't open file $file $!";
    my($module, $package, $prefix, %seen);
    while(<$fh>) {
	if( ($module, $package, $prefix) =
	    /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/)
	{
	    $seen{$module}++;
	}
    }
    if(keys %seen > 1) {
	warn "$module name guess might be incorrect";
    }
    return (keys %seen)[0];
}

sub asrc {
    my $d = shift;
    my $file = shift || "httpd.h";
    return $d if -e "$d/$file";
    return "$d/include" if -e "$d/include/$file";
    return "$d/main" if -e "$d/main/$file";
    return undef;
}

sub conf_append {
    local *CFG;
    open CFG, ">>t/conf/httpd.conf" or die "open httpd.conf $!";
    print CFG join "\n", @_, "";
    close CFG;
}

sub edit_extra_cflags {
    my($cfg) = @_;
    my $fh = IO::File->new($cfg) or die "open $cfg $!";
    my $repl = "";
    my @file = ();
    my $ccopts = ccopts();
    my $dssv = "-DSERVER_SUBVERSION";
    my $ssv = qq($dssv=\\"mod_perl/$VERSION\\" );

    my $inc = " $ccopts -I. -I../.. -DUSE_PERL_SSI" if $PERL_SSI;
    $inc .= " -DAPACHE_SSL" if is_ssl() and $PERL_SSI;
    $inc .= $SSL_INCLUDE if $SSL_INCLUDE;
    $inc .= " -DSTRONGHOLD" if is_ssl() =~ /stronghold/i;
    $inc .= " $PERL_EXTRA_CFLAGS" if $PERL_EXTRA_CFLAGS;
    $inc .= " -DMOD_PERL";

    while (<$fh>) {
	push @file, $_;
	next unless /EXTRA_CFLAGS\s*=/;
	next if /mod_perl/; 
	next if /^#/;
	chomp;

	$repl = $_;
	    
	my $backwhack = "";
	if($repl =~ s/(\\)\s*$//) {
	    $backwhack = $1;
	}
	my $mmn = magic_number($APACHE_SRC);
	if($mmn >= 19980507) {
	    $ADD_VERSION = 0;
	}
	if($ADD_VERSION) {
	    if(/$dssv=/) {
		$repl =~ 
		    s{
			$dssv\s*=\s*(.?)['"](.*?)(.?)["']
		     }[
		        qq($dssv="$1"$2 mod_perl/$VERSION$3"")
		      ]ex;
	    } 
	    else {
		$repl .= " $ssv";
	    }
	}

	$file[-1] = "$repl $inc $backwhack\n";

    }
    close $fh;

    if($repl) {
	$fh = IO::File->new(">$cfg") or die "open $cfg $!";
	print $fh @file;
	close $fh;
    }
}

sub conf_fixup {
    my($mf, $cfg) = @_;
    return if $USE_APACI;

    my $mmn    = magic_number($APACHE_SRC);
    #source re-org
    my $sro = 1 if $mmn >= 19970825;

    edit_extra_cflags($cfg);
    $PERL_STATIC_EXTS ||= "";
    $libperl ||= "";
    my $ldopts = "`$^X $PWD/src/modules/perl/ldopts $PERL_STATIC_EXTS $libperl`";
    iedit $cfg,
    q{next unless /EXTRA_LIBS\s*=/;}.
    q{next if /perl/; chomp;}.
    qq{\$_ .= q| $ldopts\n|;};

    for (split ",", $ADD_MODULE) {
	add_module($cfg,$_);
    }

    if(is_ssl() =~ /stronghold/i) {
	if($do_link_swap) {
	    warn "swapping link order in $mf for Stronghold\n";
	    my $repl = quotemeta('$(REGLIB) $(LIBS)');
	    iedit $mf, "s:\Q\$(LIBS) \$(REGLIB)\E:$repl:;";

            #XXX hack
            $repl = quotemeta('CFLAGS=$(CFLAGS)');
            iedit $mf, qq(s:\Q\"CFLAGS=\$(CFLAGS)"\E:'$repl':;); #"
	}
	my $repl = q{AUX_CFLAGS='\$(CFLAGS)'};
	iedit $mf, qq{s/AUX_CFLAGS="..CFLAGS."/$repl/};
    }
    {
	my $repl = q{CC='\$(CC)'};
	iedit $mf, qq{s/CC=..CC. /$repl /};
    }
    open(CONF, $cfg) || die "Can't open $cfg: $!";
    while (<CONF>) {
	$seen_modperl++ if 
	    /^Module\s+perl_module/i || 
		/^AddModule\s+.*libperl/;
    }
    close(CONF);
    unless ($seen_modperl) {
	print "Appending mod_perl to $conf\n";
	open(CONF, ">>$cfg") || die "Can't open $cfg: $!";
	my $line;
	$line = $sro ? "AddModule modules/perl/libperl.a" :
	               "Module perl_module         modules/perl/libperl.a";
	print CONF <<EOT;
		
# Embed a perl interpreter
$line


EOT
    close(CONF);
    } else {
	print "mod_perl already present in $conf\n";
    }
}


sub has_module {
    my($cfg, $name) = @_;
    local(*IN);
    open IN, $cfg or die "Can't open $cfg $!\n";
    while(<IN>) {
	if(/^\\w{0,3}Module\\s+.*$name\.[oa]/i) {
 	    close IN;
#	    print STDERR "has module $name\n";
	    return 1;
	}
    }
    return 0;
}
 
sub add_module {
    my($cfg, $name) = @_;
    iedit $cfg, "s/^#\\s+(\\w{0,3}Module\\s+.*$name\.[oa])/\$1/";
}

sub gen_script {
    my $file = shift;
    my(@lib) = @_;
    local(*IN,*OUT);
    open IN, "$file.PL" or die "Couldn't open $file.PL: $!";
    open OUT, ">$file" or die "Couldn't open $file: $!";
    print OUT "#!$Config{perlpath}\n";
    if (@lib) {
        print OUT "use lib qw(@lib);\n";
    }
    print OUT join '', <IN>;
    close OUT;
    close IN;
    chmod 0755, "$file";    
}

sub iedit {
    my $file = shift;
    return if $Is_Win32;

    #print STDERR "-e @_\n";
    system $^X, "-pi~", "-e", "@_", $file;
}

sub win32_setup {
    my $d = "src/modules/perl";
    dirent_kludge($d);
    cp "Apache/typemap", $d;
    chdir $d;
    system "$^X -MExtUtils::Embed -e xsinit -- -std @xs_modules $PERL_STATIC_EXTS";
    my $lib = $Config{privlibexp};
    for (@xs_mod_snames) {    
        system "$^X $lib/ExtUtils/xsubpp -typemap $lib/ExtUtils/typemap $_.xs > $_.c";

    }
    chdir "../../../";

    open(F, '>t/docs/init.pl') 
      or die "Cannot open t/docs/init.pl: $!";
    print F <<"END";
#!perl
\$Apache::Server::CWD = '$PWD';

END
  close F;
}

sub dirent_kludge {
    my $d = shift;
    local *FH;
    open FH, ">$d/dirent.h" or die "can't write $d/dirent.h $!";
    print FH <<EOF;
/* major kludge to workaround confilct(s) between perl's dirent.h apache's readdir.h */

#ifdef WIN32

#define _INC_DIRENT
#define DIR void

#endif

EOF
    close FH;
}

sub write_version_h {
    my $d = shift;
    unlink "$d/mod_perl_version.h";
    my $pv = perl_version();
    local *FH;
    open FH, ">$d/mod_perl_version.h" or die "can't write $d/mod_perl_version.h $!";
    print FH <<EOF;
#define MOD_PERL_STRING_VERSION "mod_perl/$VERSION"
#define PERLV $pv
EOF
    close FH;
}

sub write_my_config {
    my $src = shift;

# preparing and writing Configuration to Apache::MyConfig
    my %my_config = %callback_hooks;
    my @other_hooks = qw(APACHE_SRC SSL_BASE APXS PERL_USELARGEFILES
                         PERL_TRACE PERL_DEBUG APACI_ARGS
                         APACHE_PREFIX DO_HTTPD NO_HTTPD PREP_HTTPD
                         USE_APACI APACHE_HEADER_INSTALL
                         PERL_STATIC_EXTS PERL_SSI PERL_SECTIONS USE_APXS WITH_APXS);
    {
        no strict 'refs';
        for (@other_hooks) {
            $my_config{$_} = ${$_};
        }
    }
    if ($win32_auto) {
        for (qw(APACHE_INC APACHE_LIB MODPERL_INC MODPERL_LIB)) {
            $my_config{$_} = $win32_path{$_};
        }
	$my_config{APACHE_SRC} = $APACHE_SRC;
    }

    #need this alias for Apache::src backwards compat
    $my_config{'Apache_Src'} = $my_config{'APACHE_SRC'};
    $my_config{'APXS'} = delete $my_config{'WITH_APXS'};

    my $my_config_dump = join ",\n",
        map { qq{'$_' => } .
              ($my_config{$_} =~ /^\d+$/ ? $my_config{$_} : qq{'$my_config{$_}'})
            } sort keys %my_config;

    local *FH;
    open FH, '>lib/Apache/MyConfig.pm'  ||
	die "Can't open lib/Apache/MyConfig.pm: $!";
    print FH <<EOT;
#
# Configuration for mod_perl and Apache::...
#
package Apache::MyConfig;

%Setup = (
$my_config_dump
);
1;

__END__

=head1 NAME

Apache::MyConfig - build options access

=head1 SYNOPSIS

 use Apache::MyConfig;
 die unless \$Apache::MyConfig::Setup{PERL_FILE_API};

=head1 DESCRIPTION

B<Apache::MyConfig> module provides access to the various hooks
and features set when mod_perl is built.  This circumvents the
need to set up a live server just to find out if a certain callback
hook is available.

Itterate through \%Apache::MyConfig::Setup to get obtain build
information then see Appendix B of the Eagle book for more detail
on each key.

EOT
    close FH;

}

# obtain the Apache and mod_perl lib and include directories for Win32
sub win32_inc_and_lib {

  my $modperl_src = win32_fix_path(cwd) . '/src';
  $win32_path{MODPERL_INC} = $modperl_src . '/modules/perl';
  $win32_path{MODPERL_LIB} = ($win32_args{DEBUG} == 1) ? 
    $modperl_src . '/modules/win32/Debug' :
      $modperl_src . '/modules/win32/Release';

  unless ( -d $win32_args{APACHE_SRC}) {
    opendir(DIR, '../') or die "Cannot read parent directory: $!\n";
    my @dirs = map {"../$_"}
      grep {/apache/ and -d "../$_"} readdir DIR;
    closedir DIR or die "Cannot close parent directory: $!\n";
    die "Cannot find the apache sources\n" 
      unless ($win32_args{APACHE_SRC} = find_dir(\@dirs, 'apache source'));
  }
  $win32_args{APACHE_SRC} = win32_fix_path($win32_args{APACHE_SRC});
  if (-d "$win32_args{APACHE_SRC}/libexec") {
    $win32_path{APACHE_LIB} = $win32_args{APACHE_SRC} . '/libexec';
    $win32_path{APACHE_INC} = $win32_args{APACHE_SRC} . '/include';
    $win32_args{APACHE_VERS} = httpd_version($win32_path{APACHE_INC}, 1);
  }
  else {
    $win32_args{APACHE_SRC} .= '/src' unless $win32_args{APACHE_SRC} =~ /src$/;
    $win32_path{APACHE_INC} = $win32_args{APACHE_SRC} . '/include';
    $win32_args{APACHE_VERS} = httpd_version($win32_path{APACHE_INC}, 1);
    $win32_path{APACHE_LIB} = ($win32_args{DEBUG} == 1) ? 
      $win32_args{APACHE_SRC} . 
	($win32_args{APACHE_VERS} < 1315 ? '/CoreD' : '/Debug') :
	  $win32_args{APACHE_SRC} . 
	    ($win32_args{APACHE_VERS} < 1315 ? '/CoreR' : '/Release');
  }
  die "Cannot find ApacheCore.lib under $win32_path{APACHE_LIB}\n"
    unless -f "$win32_path{APACHE_LIB}/ApacheCore.lib";
  die "Cannot find httpd.h under $win32_path{APACHE_INC}\n"
    unless -f "$win32_path{APACHE_INC}/httpd.h";
  
  if ($win32_args{INSTALL_DLL} ) {
    $win32_args{INSTALL_DLL} = 
      win32_fix_path($win32_args{INSTALL_DLL});
    unless ( -d $win32_args{INSTALL_DLL}) {
      my @dirs = grep {-d} 
	('\Program Files\Apache Group\Apache\modules', 
	 '\Apache\modules', '\Program Files\Apache\modules');
      $win32_args{INSTALL_DLL} = find_dir(\@dirs, 'Apache/modules');
      if ($win32_args{INSTALL_DLL} and -d $win32_args{INSTALL_DLL}) {
	$win32_args{INSTALL_DLL} = 
	  win32_fix_path($win32_args{INSTALL_DLL});
      }
      else {
	print <<'END';

****  The Apache/modules directory was not found.    *******
****      Please install mod_perl.so manually.       *******

END
      }
    }
  }
  if ($win32_args{INSTALL_LIB} ) {
    $win32_args{INSTALL_LIB} = 
      win32_fix_path($win32_args{INSTALL_LIB});
    unless ( -d $win32_args{INSTALL_LIB}) {
      my @dirs = grep {-d} 
	('\Program Files\Apache Group\Apache\libexec', 
	 '\Apache\libexec', '\Program Files\Apache\libexec');
      $win32_args{INSTALL_LIB} = find_dir(\@dirs, 'Apache/libexec');
      if ($win32_args{INSTALL_LIB} and -d $win32_args{INSTALL_LIB}) {
	$win32_args{INSTALL_LIB} = 
	  win32_fix_path($win32_args{INSTALL_LIB});
      }
      else {
	print <<'END';

****  The Apache/libexec directory was not found.    *******
****      Please install mod_perl.lib manually.       *******

END
      }
    }
  }
}

# fix mod_perl.dsp with the perl and apache inc and lib directories
sub win32_fix_dsp {

  my $amp = 'src/modules/win32';
  my $dsp = 'mod_perl.dsp';
  unless ( -f "$amp/$dsp.orig") {
    rename("$amp/$dsp", "$amp/$dsp.orig")
      or die "Couldn't rename $amp/$dsp: $!\n";
  }
  my $perl_inc = win32_fix_path_dsp("$Config{archlibexp}/CORE");
  
  open(OLDDSP, "$amp/$dsp.orig")
    or die "Couldn't read $amp/$dsp.orig: $!\n";
  open(NEWDSP, ">$amp/$dsp")
    or die "Couldn't create $amp/$dsp: $!\n";
  while (<OLDDSP>) {
    if (/^SOURCE=.*ApacheCore\.lib/) {
      printf NEWDSP "SOURCE=%s\n", 
      win32_fix_path_dsp("$win32_path{APACHE_LIB}/ApacheCore.lib");
    }
    elsif (/^SOURCE=.*perl(56)?\.lib/) {
      print NEWDSP qq{SOURCE=$perl_inc\\$Config{libperl}\n};
    }
    elsif (/ADD CPP/) {
      my $apache_inc = win32_fix_path_dsp($win32_path{APACHE_INC});
      s!(/D "WIN32")!/I "$apache_inc"  /I "$apache_inc/../os/win32" /I "$perl_inc" $1!;
      s!(/D "WIN32")!$1 /D "EAPI" ! if $win32_args{EAPI}; 
      print NEWDSP $_;
    }
    else {
      print NEWDSP $_;
    }	
  }
  close OLDDSP;
  close NEWDSP;
  return;
}

# find a directory of type $type, given some possible $dirs
sub find_dir {
  my ($dirs, $type) = @_;
  my $j = 0;
  my $src;
  while (1) {
    $src = @$dirs > 0 ? $dirs->[$j] : '';
    $src = prompt("\nWhere is your $type directory? (q to quit)", $src);
    return undef if $src eq 'q';
    return $src if -d $src;
    print qq{'$src': no such directory\n};
    $j = ($j == @$dirs-1) ? 0 : $j + 1;
  }
}

# fix a path for Win32 Makefile
sub win32_fix_path {
  my $path = shift;
  $path = File::Spec->rel2abs($path) if not File::Spec->file_name_is_absolute($path);
  $path = Win32::GetShortPathName($path) if $path =~ / /;
  $path =~ tr!\\!/!;
  $path =~ s!/$!!;
  return $path;
}

# fix a path for mod_perl.dsp
sub win32_fix_path_dsp {
  local $_ = shift;
  tr!/!\\!;
  return $_;
}

#in version 1.2505 of Embed.pm we could just import these instead of using ``,
#but it might require lots of people to upgrade

sub ccopts {
    unless ($Embed::ccopts) {
        $Embed::ccopts = "$Config{ccflags} -I$Config{archlibexp}/CORE";
	if($USE_THREADS) {
	    $Embed::ccopts .= " -DPERL_THREADS";
	}
    }
    $Embed::ccopts;
}

sub ldopts {
    $Embed::ldopts ||= `$^X -MExtUtils::Embed -e ldopts`;
    if($^O eq "aix") {
	$Embed::ldopts =~ s,(-bE:)(perl\.exp),$1$Config{archlibexp}/$2,;
    }
    $Embed::ldopts;
}

sub perl_version {
    my $v = "$]";
    $v =~ s/\.//g;
    $v .= "0" while length($v) < 6;
    $v;
}

#for linking third-party xs modules static built w/ MakeMaker's: 'make static' 
#must have when the xs module is compiled with profiling `-pg -a' flags
sub add_static_ar {
    $PERL_STATIC_AR ||= "";
    my $cur = $APACHE_SRC =~ /^../ ? "$PWD/" : "";
    for (qw(blib/arch/auto arch/auto)) {
	last if -d ($ar_dir = "$APACHE_SRC/modules/perl/$_");
	$ar_dir = "";
    }
    return unless -d $ar_dir;

    finddepth(sub {
	return unless /^[A-Z]\w+\.a$/;
	(my $rel = $File::Find::dir) =~ s:$APACHE_SRC/?::;
	(my $mod = $rel) =~ s:.*auto/::;
	$mod =~ s,/,::,;
	print "linking static $mod => $rel/$_\n";
	$PERL_STATIC_AR .= $cur . "$File::Find::dir/$_ ";
	$PERL_STATIC_EXTS .= "$mod ";
    }, $ar_dir);
}

sub APACI::init {
    return undef if $Is_Win32;
    my $lib_cfg;
    if($USE_APXS) {
	$lib_cfg = "apaci/mod_perl.config";
	chmod 0644, $lib_cfg;
    }
    elsif($USE_APACI) {
	$lib_cfg = "$APACHE_SRC/modules/perl/mod_perl.config";
    }
    else {
	return undef;
    }
    unless (File::Compare::compare($lib_cfg,"apaci/mod_perl.config") == 0) {
	#warn "mod_perl.config already edited\n";
	#return undef;
    }

    my $apaci_cfg = FileHandle->new(">$lib_cfg") or 
	die "can't open $lib_cfg $!";

    my @static_src = ();

    for (@xs_mod_snames) {
	push @static_src, "$_.c";
    }

    add_static_ar();

    my $static_targets = "";
    $static_targets = <<EOF unless $DYNAMIC;
PERL_STATIC_EXTS = @xs_modules $PERL_STATIC_EXTS
PERL_STATIC_SRCS = @static_src
EOF

    $static_targets .= "PERL_STATIC_AR = $PERL_STATIC_AR\n" if $PERL_STATIC_AR;

    print $apaci_cfg <<EOF;
##
##  mod_perl.config -- mod_perl shared configuration file
##

#   mod_perl version
MOD_PERL_VERSION = $VERSION

#   Perl interpreter to use 
PERL = $^X
LIBPERL = $LIBPERL

$static_targets

EOF

print $apaci_cfg <<EOF if defined $MOD_PERL_PREFIX;

# mod_perl installation prefix
MOD_PERL_PREFIX = $MOD_PERL_PREFIX

EOF

    for (qw(PERL_SECTIONS PERL_SSI PERL_TRACE)) {
	my $yes_no = $$_ ? "yes" : "no";
	print $apaci_cfg "$_ = $yes_no\n";
    }

    $yes_no = 'no';
    $yes_no = 'yes' if $USE_THREADS;
    print $apaci_cfg "PERL_THREADS = $yes_no\n";

    return $apaci_cfg;
}

sub phat_warn {
    my($msg, $abort) = @_;
    my $level = $abort ? "ERROR" : "WARNING";  
    warn <<EOF;
************* $level *************

  $msg

************* $level *************
EOF
    if ($abort) {
        exit 1;
    }
    else {
        sleep 5;
    }
}

sub system_sanity_check {
    return if $Is_Win32;

    my $ccflags = $Config{'ccflags'};
    for (split /\s+/, $ccflags) {
	next unless s/^-I//;
	my $header = "$_/ap_mmn.h";
	if (-e $header) {
	    phat_warn(<<EOF);
Apache headers found in unexpected location: ``$_'', suggestions:
   *) Remove via ``rpm -e apache''
   *) Remove by hand
   *) Complain to your os vendor about their poor layout choice
   *) Complain to your sysadmin about their poor layout choice
EOF
	}
    }

    my $ld = basename $Config{ld};

    if ($^O eq 'hpux' and ($USE_DSO or $USE_APXS) and $ld eq 'ld') {
        unless ($ccflags =~ /\+z/i) {
            my $switch = $] >= 5.006 ? 'A' : 'D';
            phat_warn(<<EOF);
mod_perl is unlikely to link with your libperl, suggestions:
    *) Rebuild Perl with Configure -${switch}ccflags=+Z ...
    *) Build mod_perl static rather than DSO
EOF
        }
    }

    gdbm_check();
    malloc_check();
    uselargefiles_check();
    dynaloader_check();
    shrplib_check();

    if ($USE_APXS and $Config{libs} =~ /($thrlib)/) {
        my $lib = $1;
        phat_warn(<<EOF);
Your Perl is linked with $lib, make sure that your httpd is built with LIBS=$lib
EOF
    }
}

sub gdbm_check {
    if ($Config{libs} =~ /gdbm/) {
	require DynaLoader;
	require AutoLoader; #eek
	my $found = 0;
	my @path = split /\s+/, $Config{libpth};

	for (@path) {
	    last if $found = DynaLoader::dl_findfile($_, "-lgdbm");
	}

	unless ($found) {
	    my @maybe = ();
	    for (@path) {
		push @maybe, grep { ! -l $_ } <$_/libgdbm.*>;
	    }
	    my $suggest = @maybe ? 
	      "You could just symlink it to $maybe[0]" :
		"You might need to install Perl from source";
	    phat_warn(<<EOF);
Your Perl is configured to link against libgdbm, 
  but libgdbm.so was not found.
  $suggest
EOF
       }
    }
}

sub uselargefiles_check {
    return unless $] >= 5.006 and $Config{uselargefiles}
      and $PERL_USELARGEFILES and $USE_APXS;
    local $Apache::src::APXS = $WITH_APXS;
    my $cflags = Apache::src->new->apxs('-q' => 'CFLAGS') || '';
    return if $cflags =~ /LARGEFILE/;

    $PERL_USELARGEFILES=0; #just do it since
    return; #nobody seems to listen to the warning below

    phat_warn(<<EOF);
Your Perl is uselargefiles enabled, but Apache is not, suggestions:
    *) Rebuild mod_perl with Makefile.PL PERL_USELARGEFILES=0
    *) Rebuild Apache with CFLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
    *) Rebuild Perl with Configure -Uuselargefiles
    *) Let mod_perl build Apache (USE_DSO=1 instead of USE_APXS=1)
EOF
}

sub malloc_check {
    return unless $USE_DSO or $USE_APXS;
    return unless $Config{'usemymalloc'} eq 'y';

    my $abort = $^O eq 'solaris';

    my $bincompat = $Config{bincompat5005} and 
                    $Config{bincompat5005} eq 'define';

    if ($] < 5.006) {
        phat_warn(<<EOF, $abort);
Your current configuration will most likely trigger core dumps, suggestions:
   *) Do not configure mod_perl as a DSO
   *) Upgrade your Perl version to 5.6.0 or higher (w/ -Ubincompat5005)
   *) Configure Perl with -Uusemymalloc (not recommended for performance)
EOF
     }
     elsif ($bincompat) {
             phat_warn(<<EOF, $abort);
Your current configuration will most likely trigger core dumps, suggestions:
   *) Do not configure mod_perl as a DSO
   *) Rebuild Perl without malloc pollution (Configure -Ubincompat5005)
EOF
    }
}

sub dynaloader_check {
    return unless $^O eq 'aix' and $] <= 5.00503 and ($USE_DSO or $USE_APXS);
    phat_warn(<<EOF);
Please make sure that you apply the following patch to the perl
distribution before you install mod_perl, without this patch you will
not be able load any xs modules.
EOF

    warn <<EOF;
--- perl5.005_03/ext/DynaLoader/dl_aix.xs.orig	Fri Mar  3 17:00:58 2000
+++ perl5.005_03/ext/DynaLoader/dl_aix.xs	Sun Apr  2 13:37:05 2000
@@ -74,8 +74,8 @@
 } Module, *ModulePtr;
 
 /*
- * We keep a list of all loaded modules to be able to call the fini
- * handlers at atexit() time.
+ * We keep a list of all loaded modules to be able to reference count
+ * duplicate dlopen's.
  */
 static ModulePtr modList;
 
@@ -88,7 +88,6 @@
 
 static void caterr(char *);
 static int readExports(ModulePtr);
-static void terminate(void);
 static void *findMain(void);
 
 static char *strerror_failed   = "(strerror failed)";
@@ -165,7 +164,6 @@
	if (!mainModule) {
		if ((mainModule = findMain()) == NULL)
			return NULL;
-		atexit(terminate);
	}
	/*
	 * Scan the list of modules if have the module already loaded.
@@ -222,7 +220,16 @@
	mp->refCnt = 1;
	mp->next = modList;
	modList = mp;
-	if (loadbind(0, mainModule, mp->entry) == -1) {
+	/*
+	 * Assume anonymous exports come from the module this dlopen
+	 * is linked into, that holds true as long as dlopen and all
+	 * of the perl core are in the same shared object. Also bind
+	 * against the main part, in the case a perl is not the main
+	 * part, e.g mod_perl as DSO in Apache so perl modules can
+	 * also reference Apache symbols.
+	 */
+	if (loadbind(0, (void *)dlopen, mp->entry) == -1 ||
+	    loadbind(0, mainModule, mp->entry) == -1) {
		dlclose(mp);
		errvalid++;
		strcpy(errbuf, "loadbind: ");
@@ -336,12 +343,6 @@
	safefree(mp->name);
	safefree(mp);
	return result;
-}
-
-static void terminate(void)
-{
-	while (modList)
-		dlclose(modList);
 }
 
 /* Added by Wayne Scott 

EOF
}

sub shrplib_check {
    return unless $Config{'useshrplib'} and
      $Config{'useshrplib'} eq 'define';

    my $libperl = $Config{'libperl'} || 'libperl.so';

    for my $dir (qw(/lib /usr/lib /usr/local/lib)) {
        next unless -e "$dir/$libperl";

        my $coredir = "$Config{'archlibexp'}/CORE";
        my $corelib = "$coredir/$libperl";

        phat_warn(<<EOF);
$dir/$libperl might override
$corelib

This may cause build or runtime errors with mod_perl.
Consider removing $dir/$libperl, it should not be there.

If your vendor has installed $libperl there, complain to them and install
Perl from source if needed.

$libperl should only exist in Perl version/arch directories, for example:
$coredir
EOF
    }
}
