#!/usr/bin/perl

# InspIRCd Configuration Script
#
# Copyright 2002-2007 The ChatSpike Development Team
# <brain@chatspike.net>
# <Craig@chatspike.net>
#
# [14:21] Brain: <matrix impression> i know perl-fu!
#
# $Id$
#
########################################


require 5.6.0;
use Socket;
use Cwd;
use Getopt::Long;

# Utility functions for our buildsystem
use make::utilities;
use make::configure;

GetOptions (
	'enable-gnutls' => \$opt_use_gnutls,
	'enable-openssl' => \$opt_use_openssl,
	'disable-interactive' => \$opt_nointeractive,
	'with-nick-length=i' => \$opt_nick_length,
	'with-channel-length=i' => \$opt_chan_length,
	'with-max-channels=i' => \$opt_maxchans,
	'with-max-oper-channels=i' => \$opt_opermaxchans,
	'with-max-clients=i' => \$opt_maxclients,
	'enable-epoll' => \$opt_epoll,
	'enable-kqueue' => \$opt_kqueue,
	'disable-epoll' => \$opt_noepoll,
	'disable-kqueue' => \$opt_nokqueue,
	'enable-ipv6' => \$opt_ipv6,
	'enable-remote-ipv6' => \$opt_ipv6links,
	'disable-remote-ipv6' => \$opt_noipv6links,
	'with-cc=s' => \$opt_cc,
	'with-ident-length=i' => \$opt_ident,
	'with-quit-length=i' => \$opt_quit,
	'with-topic-length=i' => \$opt_topic,
	'with-kick-length=i' => \$opt_kick,
	'with-gecos-length=i' => \$opt_gecos,
	'with-away-length=i' => \$opt_away,
	'with-max-modes=i' => \$opt_modes,
	'prefix=s' => \$opt_base_dir,
	'config-dir=s' => \$opt_config_dir,
	'module-dir=s' => \$opt_module_dir,
	'binary-dir=s' => \$opt_binary_dir,
	'library-dir=s' => \$opt_library_dir,
	'disable-debuginfo' => sub { $opt_disable_debug = 1 },
	'help'	=> sub { showhelp(); },
	'modupdate' => sub { modupdate(); },
	'update' => sub { update(); },
	'svnupdate' => sub { svnupdate(); },
	'clean' => sub { clean(); },
);

my $non_interactive = (
	(defined $opt_library_dir) ||
	(defined $opt_base_dir) ||
	(defined $opt_config_dir) ||
	(defined $opt_module_dir) ||
	(defined $opt_base_dir) ||
	(defined $opt_binary_dir) ||
	(defined $opt_nointeractive) ||
	(defined $opt_away) ||
	(defined $opt_gecos) ||
	(defined $opt_kick) ||
	(defined $opt_maxclients) ||
	(defined $opt_modes) ||
	(defined $opt_topic) ||
	(defined $opt_quit) ||
	(defined $opt_ident) ||
	(defined $opt_cc) ||
	(defined $opt_ipv6) ||
	(defined $opt_ipv6links) ||
	(defined $opt_noipv6links) ||
	(defined $opt_kqueue) ||
	(defined $opt_epoll) ||
	(defined $opt_maxchans) ||
	(defined $opt_opermaxchans) ||
	(defined $opt_chan_length) ||
	(defined $opt_nick_length) ||
	(defined $opt_use_openssl) ||
	(defined $opt_nokqueue) ||
	(defined $opt_noepoll) ||
	(defined $opt_use_gnutls)
);
my $interactive = !$non_interactive;


chomp($topdir = getcwd());
$this = resolve_directory($topdir);						# PWD, Regardless.
@modlist = ();                                                  		# Declare for Module List..
%config = ();                                                   		# Initiate Configuration Hash..
$config{ME}                 = resolve_directory($topdir);			# Present Working Directory

$config{BASE_DIR}           = $config{ME};

if (defined $opt_base_dir)
{
	$config{BASE_DIR} = $opt_base_dir;
}

$config{CONFIG_DIR}         = resolve_directory($config{BASE_DIR}."/conf");		# Configuration Directory
$config{MODULE_DIR}         = resolve_directory($config{BASE_DIR}."/modules");		# Modules Directory
$config{BINARY_DIR}         = resolve_directory($config{BASE_DIR}."/bin");		# Binary Directory
$config{LIBRARY_DIR}        = resolve_directory($config{BASE_DIR}."/lib");		# Library Directory

if (defined $opt_config_dir)
{
	$config{CONFIG_DIR} = $opt_config_dir;
}
if (defined $opt_module_dir)
{
	$config{MODULE_DIR} = $opt_module_dir;
}
if (defined $opt_binary_dir)
{
	$config{BINARY_DIR} = $opt_binary_dir;
}
if (defined $opt_library_dir)
{
	$config{LIBRARY_DIR} = $opt_library_dir;
}
chomp($config{HAS_GNUTLS}   = `libgnutls-config --version 2>/dev/null | cut -c 1,2,3`); # GNUTLS Version.
chomp($config{HAS_OPENSSL}  = `openssl version 2>/dev/null`);			# Openssl version
$config{USE_GNUTLS}	    = "n";
if (defined $opt_use_gnutls)
{
	$config{USE_GNUTLS} = "y";						# Use gnutls.
}
$config{USE_OPENSSL}        = "n";						# Use openssl.
if (defined $opt_use_openssl)
{
	$config{USE_OPENSSL} = "y";
}

# no, let's not change these.
$config{OPTIMITEMP}         = "0";                              		# Default Optimisation Value
if (!defined $opt_disable_debug)
{
	$config{OPTIMISATI}         = "-g";                             	# Optimisation Flag
}
else
{
	$config{OPTIMISATI}         = "";					# DEBUGGING OFF!
}

$config{NICK_LENGT}         = "31";                             		# Default Nick Length
if (defined $opt_nick_length)
{
	$config{NICK_LENGT} = $opt_nick_length;
}
$config{CHAN_LENGT}         = "64";                             		# Default Channel Name Length
if (defined $opt_chan_length)
{
	$config{CHAN_LENGT} = $opt_chan_length;
}
$config{MAX_CHANNE}         = "20";                             		# Default Max. Channels per user
if (defined $opt_maxchans)
{
	$config{MAX_CHANNE} = $opt_maxchans;
}
$config{MAX_OPERCH}         = "60"; 						# Default Max. Channels per oper
if (defined $opt_opermaxchans)
{
	$config{MAX_OPERCH} = $opt_opermaxchans;
}
$config{MAXI_MODES}         = "20";                             		# Default Max. Number of Modes set at once.
if (defined $opt_modes)
{
	$config{MAXI_MODES} = $opt_modes;
}
$config{HAS_STRLCPY}        = "false";                          		# strlcpy Check.
$config{HAS_STDINT}         = "false";						# stdint.h check
$config{USE_KQUEUE}         = "y";						# kqueue enabled
if (defined $opt_kqueue)
{
	$config{USE_KQUEUE} = "y";
}
if (defined $opt_nokqueue)
{
	$config{USE_KQUEUE} = "n";
}
$config{USE_EPOLL}          = "y";						# epoll enabled
if (defined $opt_epoll)
{
	$config{USE_EPOLL} = "y";
}
if (defined $opt_noepoll)
{
	$config{USE_EPOLL} = "n";
}
$config{IPV6}               = "n";						# IPv6 support (experimental)
if (defined $opt_ipv6)
{
	$config{IPV6} = "y";
}
$config{SUPPORT_IP6LINKS}   = "y";						# IPv4 supporting IPv6 links (experimental)
if (defined $opt_ipv6links)
{
	$config{SUPPORT_IP6LINKS} = "y";
}
if (defined $opt_noipv6links)
{
	$config{SUPPORT_IP6LINKS} = "n";
}
$config{STATIC_LINK}	    = "no";						# are doing static modules?
chomp($config{MAX_CLIENT_T} = `sh -c \"ulimit -n\"`);           		# FD Limit
chomp($config{MAX_DESCRIPTORS} = `sh -c \"ulimit -n\"`);			# Hard FD Limit
chomp($config{GCCVER}       = `g++ -dumpversion | cut -c 1`);   		# Major GCC Version
$config{_SOMAXCONN} = SOMAXCONN;						# Max connections in accept queue
$config{OSNAME}       	    = $^O;                              		# Operating System Name
$config{CC} 		    = "g++";						# C++ compiler
if (defined $opt_cc)
{
	$config{CC} = $opt_cc;
}
$exec = $config{CC} . " -dumpversion | cut -c 1";
chomp($config{GCCVER}       = `$exec`);						# Major GCC Version
$config{MAKEORDER}	    = "ircd mods";					# build order
$config{STATICLIBS}         = "";						# library archive path
$config{MAX_IDENT}          = "12";						# max ident size
$config{MAX_QUIT}           = "255";						# max quit message size
$config{MAX_TOPIC}          = "307";						# max topic size
$config{MAX_KICK}           = "255";						# max kick message size
$config{MAX_GECOS}          = "128";						# max GECOS size
$config{MAX_AWAY}           = "200";						# max AWAY size
if (defined $opt_ident)
{
	$config{MAX_IDENT} = $opt_ident;
}
if (defined $opt_quit)
{
	$config{MAX_QUIT} = $opt_quit;
}
if (defined $opt_topic)
{
	$config{MAX_TOPIC} = $opt_topic;
}
if (defined $opt_kick)
{
	$config{MAX_KICK} = $opt_kick;
}
if (defined $opt_gecos)
{
	$config{MAX_GECOS} = $opt_gecos;
}
if (defined $opt_away)
{
	$config{MAX_AWAY} = $opt_away;
}

$config{HAS_OPENSSL} =~ /OpenSSL ([-[:digit:].]+)([a-z])?(\-[a-z][0-9])? (\w{3}|[0-9]+) (\w{3}|[0-9]+) [0-9]{4}/;
$config{HAS_OPENSSL} = $1;

if ($config{GCCVER} eq "") {
	print $config{CC} . " was not found! You require g++ (the GNU C++ compiler, part of GCC) to build InspIRCd!\n";
	exit;
}

# Minihack! Convert Cygwin to 'Cyg-Static' so i can
# Keep my dynamic module experiments here for later
# consideration!

if ($config{OSNAME} =~ /CYGWIN/i)
{
	$config{OSNAME} = "CYG-STATIC";
}

if (!$config{MAX_CLIENT_T}) { 
	$config{MAX_CLIENT_T} = 1024;                                 # Set a reasonable 'Default'
	$fd_scan_fail = "true";                                       # Used Later
}

# Get and Set some important vars..
getmodules();

sub clean
{
	system("rm -rf .config.cache");
}

sub update
{
	chomp($topdir = getcwd());
	$this = resolve_directory($topdir);                                             # PWD, Regardless.
	getmodules();
	# Does the cache file exist?
	if (!getcache()) {
		# No, No it doesn't.. *BASH*
		print "You have not run ./configure before. Please do this before trying to run the update script.\n";
		exit 0;
	} else {
		# We've Loaded the cache file and all our variables..
		print "Updating Files..\n";
		getosflags();
		if ($opt_disable_debug == 1)
		{
			print "Disabling debug information (-g).\n";
			$config{OPTIMISATI} = "";
			getosflags();
		}
		$has_epoll = $config{HAS_EPOLL};
		$has_kqueue = $config{HAS_KQUEUE};
		writefiles(1);
		print "Complete.\n";
		exit;
	}
}

sub modupdate
{
	chomp($topdir = getcwd());
	$this = resolve_directory($topdir);                                             # PWD, Regardless.
	getmodules();
        # Does the cache file exist?
        if (!getcache()) {
                # No, No it doesn't.. *BASH*
                print "You have not run ./configure before. Please do this before trying to run the update script.\n";
                exit 0;
        } else {
                # We've Loaded the cache file and all our variables..
                print "Updating Files..\n";
                getosflags();
                $has_epoll = $config{HAS_EPOLL};
                $has_kqueue = $config{HAS_KQUEUE};
                writefiles(0);
                print "Complete.\n";
                exit;
        }
}



sub svnupdate
{
	my $fail = 0;
	open(FH,"<.svn/entries") or $fail = 1;
	if ($fail) {
		print "This is not an SVN copy of InspIRCd.\n";
		exit;
	}
	system("svn update");
	system("perl configure -update");
	if ($ARGV[1] eq "rebuild") {
		system("make install");
	}
	exit;
}

print "Running non-interactive configure...\n" unless $interactive;
print "Checking for cache from previous configure... ";
print ((getcache() eq "true") ? "found\n" : "not found\n");
print "Checking operating system version... ";
print getosflags() . "\n";

if (defined $opt_maxclients)
{
	$config{MAX_CLIENT} = $opt_maxclients;
}

if (!$config{MAX_CLIENT}) { 
	# If the cache hasn't set the max clients, copy the variable of MAX_CLIENT_T, this
	# allows us to keep _T for testing purposes. (ie. "Are you sure you want to go
	# higher than the found value" :))
	$config{MAX_CLIENT} = $config{MAX_CLIENT_T};
}

printf "Checking if stdint.h exists... ";
$config{HAS_STDINT} = "true";
my $fail = 0;
open(STDINT, "</usr/include/stdint.h") or $config{HAS_STDINT} = "false";
if ($config{HAS_STDINT} eq "true") {
	close(STDINT);
}
print "yes\n" if $config{HAS_STDINT} eq "true";
print "no\n" if $config{HAS_STDINT} eq "false";


printf "Checking if strlcpy exists... ";
# Perform the strlcpy() test..
$config{HAS_STRLCPY} = "false";
my $fail = 0;
open(STRLCPY, "</usr/include/string.h") or $fail = 1;
if (!$fail) {
	while (chomp($line = <STRLCPY>)) {
		# try and find the delcaration of:
		# size_t strlcpy(...)
		if ($line =~ /size_t(\0x9|\s)+strlcpy/)	{
			$config{HAS_STRLCPY} = "true";
		}
	}
	close(STRLCPY);
}
print "yes\n" if $config{HAS_STRLCPY} eq "true";
print "no\n" if $config{HAS_STRLCPY} eq "false";


printf "Checking if kqueue exists... ";
$has_kqueue = 0;
$fail = 0;
open(KQUEUE, "</usr/include/sys/event.h") or $fail = 1;
if (!$fail) {
        while (chomp($line = <KQUEUE>)) {
                # try and find the delcaration of:
		# int kqueue(void);
		if ($line =~ /int(\0x9|\s)+kqueue/) {
			$has_kqueue = 1;
		}
	}
	close(KQUEUE);
}
print "yes\n" if $has_kqueue == 1;
print "no\n" if $has_kqueue == 0;

printf "Checking if epoll exists... ";
$has_epoll = 0;
$fail = 0;
open(EPOLL, "</usr/include/sys/epoll.h") or $fail = 1;
if (!$fail) {
	$has_epoll = 1;
	close(EPOLL);
}
if ($has_epoll) {
	my $kernel = `uname -r`;
	chomp($kernel);
	if (($kernel =~ /2\.0/) || ($kernel =~ /2\.2/) || ($kernel =~ /2\.4/)) {
		$has_epoll = 0;
	}
}
print "yes\n" if $has_epoll == 1;
print "no\n" if $has_epoll == 0;

if (($config{OSNAME} =~ /CYGWIN/) || ($config{OSNAME} eq "CYG-STATIC")) {
	$config{HAS_STRLCPY} = "true";
}

$config{HAS_EPOLL} = $has_epoll;
$config{HAS_KQUEUE} = $has_kqueue; 

printf "Checking for libgnutls... ";
if (($config{HAS_GNUTLS}) && (($config{HAS_GNUTLS} >= 1.2) || ($config{HAS_GNUTLS} eq "y"))) {
	print "yes\n";
	$config{HAS_GNUTLS} = "y";
} else {
	print "no\n";
	$config{HAS_GNUTLS} = "n";
}

printf "Checking for openssl... ";
if (($config{HAS_OPENSSL}) && (($config{HAS_OPENSSL} >= 0.8) || ($config{HAS_OPENSSL} eq "y"))) {
	print "yes\n";
	$config{HAS_OPENSSL} = "y";
} else {
	print "no\n";
	$config{HAS_OPENSSL} = "n";
}

################################################################################
#                          BEGIN INTERACTIVE PART                              #
################################################################################

# Clear the Screen..
if ($interactive)
{
	system("clear");
	$wholeos = $^O;

	my $rev = getrevision();
	# Display Introduction Message..
	print "
Welcome to the \033[1mInspIRCd\033[0m Configuration program! (\033[1minteractive mode\033[0m)
\033[1mPackage maintainers: Type ./configure --help for non-interactive help\033[0m

*** If you are unsure of any of these values, leave it blank for    ***
*** standard settings that will work, and your server will run      ***
*** using them. Please consult your IRC network admin if in doubt.  ***

Press \033[1m<RETURN>\033[0m to accept the default for any option, or enter
a new value. Please note: You will \033[1mHAVE\033[0m to read the docs
dir, otherwise you won't have a config file!

Your operating system is: \033[1;32m$config{OSNAME}\033[0m ($wholeos)
Maximum file descriptors: \033[1;32m$config{MAX_CLIENT_T}\033[0m
Your InspIRCd revision ID is \033[1;32mr$rev\033[0m";
	if ($rev eq "r0") {
		print " (Non-SVN build)";
	}
	print ".\n\n";

	$config{CHANGE_COMPILER} = "n";
	print "I have detected the following compiler: \033[1;32m$config{CC}\033[0m (version \033[1;32m$config{GCCVER}.x\033[0m)\n";

	while (($config{GCCVER} < 3) || ($config{GCCVER} eq "")) {
		print "\033[1;32mIMPORTANT!\033[0m A GCC 2.x compiler has been detected, and
should NOT be used. You should probably specify a newer compiler.\n\n";
		yesno(CHANGE_COMPILER,"Do you want to change the compiler?");
		if ($config{CHANGE_COMPILER} =~ /y/i) {
			print "What command do you want to use to invoke your compiler?\n";
			print "[\033[1;32m$config{CC}\033[0m] -> ";
			chomp($config{CC} = <STDIN>);
			if ($config{CC} eq "") {
				$config{CC} = "g++";
			}
			chomp($foo = `$config{CC} -dumpversion | cut -c 1`);
			if ($foo ne "") {
				chomp($config{GCCVER}       = `$config{CC} -dumpversion | cut -c 1`); # we must redo these if we change compilers
				print "Queried compiler: \033[1;32m$config{CC}\033[0m (version \033[1;32m$config{GCCVER}.x\033[0m)\n";
				if ($config{GCCVER} < 3) {
					print "\033[1;32mGCC 2.x WILL NOT WORK!\033[0m. Let's try that again, shall we?\n";
				}
			}
			else {
				print "\033[1;32mWARNING!\033[0m Could not execute the compiler you specified. You may want to try again.\n";
			}
		}
	}

	print "\n";

	# Directory Settings..
	my $tmpbase = $config{BASE_DIR};
	dir_check("do you wish to install the InspIRCd base", "BASE_DIR");
	if ($tmpbase ne $config{BASE_DIR}) {
		$config{CONFIG_DIR}         = resolve_directory($config{BASE_DIR}."/conf");           # Configuration Dir
		$config{MODULE_DIR}         = resolve_directory($config{BASE_DIR}."/modules");        # Modules Directory
		$config{BINARY_DIR}         = resolve_directory($config{BASE_DIR}."/bin");            # Binary Directory
		$config{LIBRARY_DIR}        = resolve_directory($config{BASE_DIR}."/lib");            # Library Directory
	}

	dir_check("are the configuration files", "CONFIG_DIR");
	dir_check("are the modules to be compiled to", "MODULE_DIR");
	dir_check("is the IRCd binary to be placed", "BINARY_DIR");
	dir_check("are the IRCd libraries to be placed", "LIBRARY_DIR");

	if ($has_kqueue) {
		yesno(USE_KQUEUE,"You are running a BSD operating system, and kqueue\nwas detected. Would you like to enable kqueue support?\nThis is likely to increase performance.\nIf you are unsure, answer yes.\n\nEnable kqueue?");
		print "\n";
	}
	if ($has_epoll) {
		yesno(USE_EPOLL,"You are running a Linux 2.6+ operating system, and epoll\nwas detected. Would you like to enable epoll support?\nThis is likely to increase performance.\nIf you are unsure, answer yes.\n\nEnable epoll?");
		print "\n";
	}
	$chose_hiperf = (($config{USE_EPOLL} eq "y") || ($config{USE_KQUEUE} eq "y"));
	if (!$chose_hiperf) {
		print "No high-performance socket engines are available, or you chose\n";
		print "not to enable one. Defaulting to select() engine.\n\n";
	}

	yesno(IPV6,"Would you like to build InspIRCd with IPv6 support?");
	print "\n";

	if ($config{IPV6} eq "y") {
		print "You have chosen to build an \033[1;32mIPV6-only\033[0m server.\nTo accept IPV4 users, you must use the '::ffff:' notation of addresses.\n\n";
		$config{SUPPORT_IP6LINKS} = "y";
	} else {
		yesno(SUPPORT_IP6LINKS,"You have chosen to build an \033[1;32mIPV4-only\033[0m server.\nWould you like to enable support for linking to IPV6-enabled\nInspIRCd servers which are using '::ffff:' notation?\nIf you are using a recent operating\nsystem and are unsure, answer yes.");
		print "\n";
	}

	if (($config{HAS_GNUTLS} eq "y") && ($config{HAS_OPENSSL} eq "y")) {
		print "I have detected both GnuTLS and OpenSSL on your system.\n";
		print "I will default to GnuTLS. If you wish to use OpenSSL\n";
		print "instead, you should enable the OpenSSL module yourself\n";
		print "by copying it from src/modules/extra to src/modules.\n\n";
	}

	if ($config{HAS_GNUTLS} eq "y") {
		yesno(USE_GNUTLS, "Would you like to enable SSL Support?");
		if ($config{USE_GNUTLS} eq "y") {
			print "\nUsing GnuTLS SSL module.\n";
		}
	} elsif	($config{HAS_OPENSSL} eq "y") {
			yesno(USE_OPENSSL, "Would you like to enable SSL Support?");
	if ($config{USE_OPENSSL} eq "y") {
			print "\nUsing OpenSSL SSL module.\nYou will get better performance if you move to GnuTLS in the future.\n";
		}
	}

	print "\nThe following questions will ask you for various figures relating\n";
	print "To your IRCd install. Please note that these should usually be left\n";
	print "as defaults unless you have a real reason to change them. If they\n";
	print "changed, then the values must be identical on all servers on your\n";
	print "network, or malfunctions and/or crashes may occur, with the exception\n";
	print "of the 'maximum number of clients' setting which may be different on\n";
	print "different servers on the network.\n\n";

	# File Descriptor Settings..
	promptnumeric("number of clients at any one time", "MAX_CLIENT_T");
	$config{MAX_CLIENT} = $config{MAX_CLIENT_T};
	$config{MAX_DESCRIPTORS} = $config{MAX_CLIENT_T};

	promptnumeric("length of nicknames", "NICK_LENGT");
	promptnumeric("length of channel names", "CHAN_LENGT");
	promptnumeric("number of channels a normal user may join at any one time", "MAX_CHANNE");
	promptnumeric("number of channels an oper may join at any one time", "MAX_OPERCH");
	promptnumeric("number of mode changes in one line", "MAXI_MODES");
	promptnumeric("length of an ident (username)", "MAX_IDENT");
	promptnumeric("length of a quit message", "MAX_QUIT");
	promptnumeric("length of a channel topic", "MAX_TOPIC");
	promptnumeric("length of a kick message", "MAX_KICK");
	promptnumeric("length of a GECOS (real name)", "MAX_GECOS");
	promptnumeric("length of an away message", "MAX_AWAY");
}

dumphash();

if (($config{USE_GNUTLS} eq "y") && ($config{HAS_GNUTLS} ne "y"))
{
	print "Sorry, but i couldn't detect gnutls. Make sure gnutls-config is in your path.\n";
	exit(0);
}
if (($config{USE_OPENSSL} eq "y") && ($config{HAS_OPENSSL} ne "y"))
{
	print "Sorry, but i couldn't detect openssl. Make sure openssl is in your path.\n";
	exit(0);
}

if ($config{USE_GNUTLS} eq "y") {
	$failed = 0;
	open(TMP, "<src/modules/m_ssl_gnutls.cpp") or $failed = 1;
	close(TMP);
	if ($failed) {
		print "Symlinking src/modules/m_ssl_gnutls.cpp from extra/\n";
		chdir("src/modules");
		system("ln -s extra/m_ssl_gnutls.cpp");
		system("ln -s extra/ssl_cert.h");
		chdir("../..");
	}
	getmodules();
	if ($interactive)
	{
		$failed = 0;
		open(TMP, "<$config{CONFIG_DIR}/key.pem") or $failed = 1;
		close(TMP);
		open(TMP, "<$config{CONFIG_DIR}/cert.pem") or $failed = 1;
		close(TMP);
		if ($failed) {
			print "SSL Certificates Not found, Generating.. \n\n
*************************************************************
* Generating the Private Key may take some time, go grab a  *
* Coffee. Even better, to generate some more entropy if it  *
* is taking a while, open another console and type du / a   *
* few times and get that HD going :) Then answer the        *
* Questions which follow. If you are unsure, just hit enter *
*************************************************************\n\n";
			system("certtool --generate-privkey --outfile key.pem");
			system("certtool --generate-self-signed --load-privkey key.pem --outfile cert.pem");
			print "\nCertificate generation complete, copying to config directory... ";
			system("mv key.pem $config{CONFIG_DIR}/key.pem");
			system("mv cert.pem $config{CONFIG_DIR}/cert.pem");
			print "Done.\n\n";
		} else {
			print "SSL Certificates found, skipping.\n\n"
		}
	}
	else
	{
		print "Skipping SSL certificate generation\nin non-interactive mode.\n\n";
	}
} elsif ($config{USE_OPENSSL} eq "y") {
	$failed = 0;
	open(TMP, "<src/modules/m_ssl_openssl.cpp") or $failed = 1;
	close(TMP);
	if ($failed) {
		print "Symlinking src/modules/m_ssl_openssl.cpp from extra/\n";
		chdir("src/modules");
		system("ln -s extra/m_ssl_openssl.cpp");
		system("ln -s extra/ssl_cert.h");
		chdir("../..");
	}
	getmodules();
	$failed = 0;
	if ($interactive)
	{
		open(TMP, "<$config{CONFIG_DIR}/key.pem") or $failed = 1;
		close(TMP);
		open(TMP, "<$config{CONFIG_DIR}/cert.pem") or $failed = 1;
		close(TMP);
		if ($failed) {
			print "SSL Certificates Not found, Generating.. \n\n
*************************************************************
* Generating the certificates may take some time, go grab a *
* coffee, or something.                                     *
*************************************************************\n\n";
			system("openssl req -x509 -nodes -newkey rsa:1024 -keyout key.pem -out cert.pem");
			system("openssl dhparam -out dhparams.pem 1024");
			print "\nCertificate generation complete, copying to config directory... ";
			system("mv key.pem $config{CONFIG_DIR}/key.pem");
			system("mv cert.pem $config{CONFIG_DIR}/cert.pem");
			system("mv dhparams.pem $config{CONFIG_DIR}/dhparams.pem");
			print "Done.\n\n";
		} else {
			print "SSL Certificates found, skipping.\n\n"
		}
	}
	else
	{
		print "Skipping SSL certificate generation\nin non-interactive mode.\n\n";
	}
}
if (($config{USE_GNUTLS} eq "n") && ($config{USE_OPENSSL} eq "n")) {
	print "Skipping SSL Certificate generation, SSL support is not available.\n\n";
}

getosflags();
makecache();
writefiles(1);

print "\n\n";
print "To build your server with these settings, please type '\033[1;32m$config{MAKEPROG}\033[0m' now.\n";
if (($config{USE_GNUTLS} eq "y") || ($config{USE_OPENSSL} eq "y")) {
	print "Please remember that to enable \033[1;32mSSL support\033[0m you must\n";
	print "load the required modules in your config. This configure process\n";
	print "has just prepared these modules to be compiled for you, and has not\n";
	print "configured them to be compiled into the core of the ircd.\n";
}
print "*** \033[1;32mRemember to edit your configuration files!!!\033[0m ***\n\n\n";
if (($config{OSNAME} eq "OpenBSD") && ($config{CC} ne "eg++")) {
	print "\033[1;32mWARNING!\033[0m You are running OpenBSD but you are using the base gcc package\nrather than eg++. This compile will most likely fail, but i'm letting you\ngo ahead with it anyway, just in case i'm wrong :-)\n";
}

if ($config{GCCVER} < "3") {
	print <<FOO2;
\033[1;32mWARNING!\033[0m You are attempting to compile InspIRCd on GCC 2.x!
GCC 2.x series compilers only had partial (read as broken) C++ support, and
your compile will most likely fail horribly! If you have any problems, do NOT
report them to the bugtracker or forums without first upgrading your compiler
to a newer 3.x or 4.x (or whatever is available currently) version.
FOO2
}

################################################################################
#                              HELPER FUNCTIONS                                #
################################################################################
sub getcache {
	# Retrieves the .config.cache file, and loads values into the main config hash.
	open(CACHE, ".config.cache") or return undef;
	while (<CACHE>) {
		chomp;
		# Ignore Blank lines, and comments..
		next if /^\s*$/;
		next if /^\s*#/;
		my ($key, $value) = split("=", $_);
		$value =~ /^\"(.*)\"$/;
		# Do something with data here!
		$config{$key} = $1;
	}
	close(CONFIG);
	return "true";
}

sub makecache {
	# Dump the contents of %config
	print "Writing \033[1;32mcache file\033[0m for future ./configures ...\n";
	open(FILEHANDLE, ">.config.cache");
	foreach $key (keys %config) {
		print FILEHANDLE "$key=\"$config{$key}\"\n";
	}
	close(FILEHANDLE);
}

sub dir_check {
	my ($desc, $hash_key) = @_;
	my $complete = 0;
	while (!$complete) {
		print "In what directory $desc?\n";
		print "[\033[1;32m$config{$hash_key}\033[0m] -> ";
		chomp($var = <STDIN>);
		if ($var eq "") {
			$var = $config{$hash_key};
		}
		if ($var =~ /^\~\/(.+)$/) {
			# Convert it to a full path..
			$var = resolve_directory($ENV{HOME} . "/" . $1);
		}
		elsif ((($config{OSNAME} =~ /MINGW32/i) and ($var !~ /^[A-Z]{1}:\\.*/)) and (substr($var,0,1) ne "/"))
		{
			# Assume relative Path was given.. fill in the rest.
			$var = $this . "/$var";
		}
		
		$var = resolve_directory($var); 
		if (! -e $var) {
			print "$var does not exist. Create it?\n[\033[1;32my\033[0m] ";
			chomp($tmp = <STDIN>);
			if (($tmp eq "") || ($tmp =~ /^y/i)) {
				# Attempt to Create the Dir..
				
				system("mkdir -p \"$var\" >> /dev/null 2>&1");
				$chk = system("mkdir -p \"$var\" >> /dev/null 2>&1") / 256;
				if ($chk != 0) {
					print "Unable to create directory. ($var)\n\n";
					# Restart Loop..
					next;
				}
			} else {
				# They said they don't want to create, and we can't install there.
				print "\n\n";
				next;
			}
		} else {
			if (!is_dir($var)) {
				# Target exists, but is not a directory.
				print "File $var exists, but is not a directory.\n\n";
				next;
			}
		}
		# Either Dir Exists, or was created fine.
		$config{$hash_key} = $var;
		$complete = 1;
		print "\n";
	}
}

sub getosflags {

	$config{LDLIBS} = "-lstdc++";
	$config{FLAGS}  = "-fno-strict-aliasing -fPIC -Wall -Woverloaded-virtual $config{OPTIMISATI}";
	$config{MAKEPROG} = "make";

	if ($config{OSNAME} =~ /OpenBSD/i) {
		$config{MAKEPROG} = "gmake";
		chomp($foo = `eg++ -dumpversion | cut -c 1`);
		# theyre running the package version of gcc (eg++)... detect it and set up its version numbers.
		# if theyre not running this, configure lets the build continue but they probably wont manage to
		# compile as this standard version is 2.95.3!
		if ($foo ne "") {
			$config{CC} = "eg++";
			chomp($config{GCCVER}       = `eg++ -dumpversion | cut -c 1`); # we must redo these if we change the compiler path
		}
		return "OpenBSD";
	}

	if ($config{OSNAME} =~ /Linux/i) {
		$config{LDLIBS} = "-ldl -lstdc++";
		$config{FLAGS}  = "-fno-strict-aliasing -fPIC -Wall -Woverloaded-virtual $config{OPTIMISATI}";
		$config{FLAGS}  .= " " . $ENV{CXXFLAGS} if exists($ENV{CXXFLAGS});
		$config{MAKEPROG} = "make";
		if ($config{OSNAME} =~ /CYGWIN/) {
			$config{FLAGS}  = "-fno-strict-aliasing -Wall -Woverloaded-virtual $config{OPTIMISATI}";
			$config{LDLIBS} = "";
			$config{MAKEPROG} = "/usr/bin/make";
			$config{MAKEORDER} = "ircd mods";
			return "Cygwin";
		} elsif ($config{OSNAME} eq "CYG-STATIC") {
			$config{FLAGS} = "-fno-strict-aliasing -Wall -Woverloaded-virtual $config{OPTIMISATI}";
			$config{LDLIBS} = "";
			$config{MAKEPROG} = "/usr/bin/make";
			$config{MAKEORDER} = "mods ircd";
			$config{STATICLIBS} = "modules/mods.a";
			$config{STATIC_LINK} = "yes";
			return "Cygwin-Static";
		}
		$config{FLAGS}  .= " " . $ENV{CXXFLAGS} if exists($ENV{CXXFLAGS});
	}
	
	if ($config{OSNAME} =~ /SunOS/i)
	{
		# solaris/sunos needs these
		# socket = bsd sockets api
		# nsl = dns stuff
		# rt = POSIX realtime extensions
		# resolv = inet_aton only (why isnt this in nsl?!)
		$config{MAKEPROG} = "gmake";
		$config{LDLIBS} = $config{LDLIBS} . " -lsocket -lnsl -lrt -lresolv";
		return "Solaris";
	}
	
	if($config{OSNAME} =~ /MINGW32/i)
	{
		# All code is position-independent on windows
		$config{FLAGS} =~ s/-fPIC //;
		return "MinGW";
	}

	return $config{OSNAME};
}

sub writefiles {
	my($writeheader) = @_;
	# First File.. inspircd_config.h
	chomp(my $incos = `uname -n -s -r`);
	chomp(my $version = `sh ./src/version.sh`);
        chomp(my $revision = getrevision());
	$version = "$version(r$revision)";
	chomp(my $revision2 = getrevision());
	if ($writeheader == 1)
	{
		print "Writing \033[1;32minspircd_config.h\033[0m\n";
		open(FILEHANDLE, ">include/inspircd_config.h");
		my $NL = $config{NICK_LENGT}+1;
		my $CL = $config{CHAN_LENGT}+1;
		print FILEHANDLE <<EOF;
/* Auto generated by configure, do not modify! */
#ifndef __CONFIGURATION_AUTO__
#define __CONFIGURATION_AUTO__

#define CONFIG_FILE "$config{CONFIG_DIR}/inspircd.conf"
#define MOD_PATH "$config{MODULE_DIR}"
#define VERSION "$version"
#define REVISION "$revision2"
#define MAXCLIENTS $config{MAX_CLIENT}
#define MAXCLIENTS_S "$config{MAX_CLIENT}"
#define SOMAXCONN_S "$config{_SOMAXCONN}"
#define MAX_DESCRIPTORS $config{MAX_DESCRIPTORS}
#define NICKMAX $NL
#define CHANMAX $CL
#define MAXCHANS $config{MAX_CHANNE}
#define OPERMAXCHANS $config{MAX_OPERCH}
#define MAXMODES $config{MAXI_MODES}
#define IDENTMAX $config{MAX_IDENT}
#define MAXQUIT $config{MAX_QUIT}
#define MAXTOPIC $config{MAX_TOPIC}
#define MAXKICK $config{MAX_KICK}
#define MAXGECOS $config{MAX_GECOS}
#define MAXAWAY $config{MAX_AWAY}
#define OPTIMISATION $config{OPTIMITEMP}
#define LIBRARYDIR "$config{LIBRARY_DIR}"
#define SYSTEM "$incos"
#define MAXBUF 514
EOF
		if ($config{OSNAME} =~ /SunOS/i) {
			print FILEHANDLE "#define IS_SOLARIS\n";
		}
		if ($config{OSNAME} =~ /CYGWIN/i) {
			print FILEHANDLE "#define IS_CYGWIN\n";
			print FILEHANDLE "#ifndef FD_SETSIZE\n#define FD_SETSIZE	1024\n#endif\n";
		}
		if ($config{OSNAME} =~ /MINGW32/i) {
			print FILEHANDLE "#define IS_MINGW\n";
		}
		if ($config{OSNAME} =~ /CYG-STATIC/i) {
			print FILEHANDLE "#ifndef FD_SETSIZE\n#define FD_SETSIZE    1024\n#endif\n";
		}
		if ($config{STATIC_LINK} eq "yes") {
			print FILEHANDLE "#define STATIC_LINK\n";
		}
		if ($config{GCCVER} >= 3) {
			print FILEHANDLE "#define GCC3\n";
		}
		if ($config{HAS_STRLCPY} eq "true") {
			print FILEHANDLE "#define HAS_STRLCPY\n";
		}
		if ($config{HAS_STDINT} eq "true") {
			print FILEHANDLE "#define HAS_STDINT\n";
		}
		if ($config{IPV6} =~ /y/i) {
			print FILEHANDLE "#define IPV6\n";
		}
		if ($config{SUPPORT_IP6LINKS} =~ /y/i) {
			print FILEHANDLE "#define SUPPORT_IP6LINKS\n";
		}
		my $use_hiperf = 0;
		if (($has_kqueue) && ($config{USE_KQUEUE} eq "y")) {
			print FILEHANDLE "#define USE_KQUEUE\n";
			$se = "socketengine_kqueue";
			$use_hiperf = 1;
		}
		if (($has_epoll) && ($config{USE_EPOLL} eq "y")) {
			print FILEHANDLE "#define USE_EPOLL\n";
			$se = "socketengine_epoll";
			$use_hiperf = 1;
		}
		# user didn't choose either epoll or select for their OS.
		# default them to USE_SELECT (ewwy puke puke)
		if (!$use_hiperf) {
			print FILEHANDLE "#define USE_SELECT\n";
			$se = "socketengine_select";
		}
		print FILEHANDLE "\n#endif\n";
		close(FILEHANDLE);
	}

	if ($writeheader)
	{
		open(FILEHANDLE, ">include/inspircd_se_config.h");
		print FILEHANDLE <<EOF;
/* Auto generated by configure, do not modify or commit to svn! */
#ifndef __CONFIGURATION_SOCKETENGINE__
#define __CONFIGURATION_SOCKETENGINE__

#include "$se.h"

#endif
EOF
		close(FILEHANDLE);
	}


	# Create a Modules List..
	my $modules = "";
	foreach $i (@modlist)
	{
		if ($config{STATIC_LINK} eq "yes") {
			$modules .= "m_".$i.".o ";
		}
		else {
			$modules .= "m_".$i.".so ";
		}
	}
	chomp($modules);   # Remove Redundant whitespace..


	# Write all .in files.
	my $tmp = "";
	my $file = "";
	my $exe = "inspircd";

	if ($config{OSNAME} =~ /CYGWIN/i) {
		$exe = "inspircd.exe";
	}

	opendir(DIRHANDLE, $this);

	# Do this once here, and cache it in the .*.inc files,
	# rather than attempting to read src/version.sh from
	# compiled code -- we might not have the source to hand.
	# Fix for bug#177 by Brain.

	chomp(my $version = `sh ./src/version.sh`);
	chomp(my $revision = getrevision());
	$version = "$version(r$revision)";

	# We can actually parse any file starting with . and ending with .inc,
	# but right now we only parse .inspircd.inc to form './inspircd'

	foreach $name (sort readdir(DIRHANDLE)) {
		if ($name =~ /^\.(.+)\.inc$/) {
			$file = $1;
			# All .name.inc files need parsing!
			$tmp = "";
			open(FILEHANDLE, ".$file.inc");
			while (<FILEHANDLE>) {
				$tmp .= $_;
			}
			close(FILEHANDLE);

			$tmp =~ s/\@CC\@/$config{CC}/;
			$tmp =~ s/\@MAKEPROG\@/$config{MAKEPROG}/;
			$tmp =~ s/\@FLAGS\@/$config{FLAGS}/;
			$tmp =~ s/\@LDLIBS\@/$config{LDLIBS}/;
			$tmp =~ s/\@BASE_DIR\@/$config{BASE_DIR}/;
			$tmp =~ s/\@CONFIG_DIR\@/$config{CONFIG_DIR}/;
			$tmp =~ s/\@MODULE_DIR\@/$config{MODULE_DIR}/;
			$tmp =~ s/\@BINARY_DIR\@/$config{BINARY_DIR}/;
			$tmp =~ s/\@LIBRARY_DIR\@/$config{LIBRARY_DIR}/;
			$tmp =~ s/\@MODULES\@/$modules/;
			$tmp =~ s/\@EXECUTABLE\@/$exe/;
			$tmp =~ s/\@MAKEORDER\@/$config{MAKEORDER}/;
			$tmp =~ s/\@STATICLIBS\@/$config{STATICLIBS}/;
			$tmp =~ s/\@VERSION\@/$version/;

			print "Writing \033[1;32m$file\033[0m\n";
			open(FILEHANDLE, ">$file");
			print FILEHANDLE $tmp;
		}
	}
	closedir(DIRHANDLE);

	# Make inspircd executable!
	chmod 0744, 'inspircd';

	if ($config{STATIC_LINK} eq "yes") {
		print "Writing static-build \033[1;32msrc/Makefile\033[0m\n";
		write_static_makefile();
		write_static_modules_makefile();
	} elsif ($config{OSNAME} =~ /CYGWIN/i) {
		print "Writing cygwin-build \033[1;32msrc/Makefile\033[0m\n";
		write_static_makefile();
		write_dynamic_modules_makefile();
	} else {
		print "Writing dynamic-build \033[1;32msrc/Makefile\033[0m\n";
		write_dynamic_makefile();
		write_dynamic_modules_makefile();
	}
}

sub write_static_modules_makefile {
	# Modules Makefile..
	print "Writing \033[1;32msrc/modules/Makefile\033[0m\n";
	open(FILEHANDLE, ">src/modules/Makefile");

	###
	# Module Makefile Header
	###
	print FILEHANDLE <<EOF;
# (C) ChatSpike development team
# Makefile by <Craig\@ChatSpike.net>
# Many Thanks to Andrew Church <achurch\@achurch.org>
#    for assisting with making this work right.
#
# Automatically Generated by ./configure to add a modules
# please run ./configure --update

all: \$(MODULES)

EOF
	###
	# End Module Makefile Header
	###

	# Create a Modules List..
	my $modules = "";
	my $cmflags = "";
	my $liflags = "";

	open(MODLIST,">include/modlist.h");

	###
	# Include File Header
	###
	print MODLIST <<HEADER;
// Generated automatically by configure. DO NOT EDIT!

#ifndef __SYMBOLS__H_CONFIGURED__
#define __SYMBOLS__H_CONFIGURED__

HEADER
	###
	# End Include File Header
	###

	# Place Module List into Include
	foreach $i (@modlist) {
		if ($i !~ /_static$/) {
			print MODLIST "extern \"C\" void * $i\_init (void);\n";
		}
	}
	print MODLIST "\nstruct {const char *name; initfunc *value; } modsyms[] = {\n";

	###
	# Build Module Crap
	###
	foreach $i (@modlist)
	{
		if ($i !~ /_static$/) {
			$cmflags = getcompilerflags("src/modules/m_".$i.".cpp");
			$liflags = getlinkerflags("src/modules/m_".$i.".cpp");
			$deps = getdependencies("src/modules/m_".$i.".cpp");

			#print "file: $i: cmflags=$cmflags; liflags=$liflags; deps=$deps\n";

			###
			# Write Entry to the Makefile
			###
			print FILEHANDLE <<EOCHEESE;
m_$i.o: .m_$i\_static.cpp ../../include/modules.h ../../include/users.h ../../include/channels.h ../../include/base.h $deps
	\$(CC) -pipe -I../../include \$(FLAGS) $flags -export-dynamic -c .m_$i\_static.cpp
	mv .m_$i\_static.o ../m_$i.o

EOCHEESE
			###
			# End Write Entry to the MakeFile
			###
			print "Configuring module [\033[1;32mm_$i.so\033[0m] for static linking... ";
			open(MODULE,"<src/modules/m_".$i.".cpp") or die("Could not open m_".$i.".cpp");
			open(MUNGED,">src/modules/.m_".$i."_static.cpp") or die("Could not create .m_".$i."_static.cpp");
			while (chomp($a = <MODULE>)) { 
				$a =~ s/init_module/$i\_init/g;
				print MUNGED "$a\n";
			}
			close(MODULE);
			close(MUNGED);
			print MODLIST <<EOENT;
{"m_$i.so",\&$i\_init},
EOENT
			print "done\n";
		}
	}
	print MODLIST "{0}};\n\n#endif\n";
	close(MODLIST);
}

sub write_dynamic_modules_makefile {
	# Modules Makefile..
	print "Writing \033[1;32msrc/modules/Makefile\033[0m\n";
	open(FILEHANDLE, ">src/modules/Makefile");
	my $extra = "";

	if ($config{OSNAME} =~ /CYGWIN/i) {
		$extra = "../inspircd.dll.a";
	}

###
# Module Makefile Header
###
	print FILEHANDLE <<EOF;
# (C) ChatSpike development team
# Makefile by <Craig\@ChatSpike.net>
# Many Thanks to Andrew Church <achurch\@achurch.org>
#    for assisting with making this work right.
#
# Automatically Generated by ./configure to add a modules
# please run ./configure -update or ./configure -modupdate

all: \$(MODULES)

EOF
	###
	# End Module Makefile Header
	###

	# Create a Modules List..
	my $modules = "";
	my $cmflags = "";
	my $liflags = "";
	my $crud = "";

	foreach $i (@modlist) {
	###
	# Write Entry to the MakeFile
	###
	$cmflags = getcompilerflags("src/modules/m_".$i.".cpp");
	$liflags = getlinkerflags("src/modules/m_".$i.".cpp");
	$deps = getdependencies("src/modules/m_".$i.".cpp");

	#print "file: $i: cmflags=$cmflags; liflags=$liflags; deps=$deps\n";

	print FILEHANDLE <<EOCHEESE;
m_$i.so: m_$i.cpp ../../include/modules.h ../../include/users.h ../../include/channels.h ../../include/base.h ../../include/inspircd_config.h ../../include/inspircd.h ../../include/configreader.h $deps
	\$(CC) -pipe -I../../include \$(FLAGS) $cmflags -export-dynamic -c m_$i.cpp
	\$(CC) -pipe \$(FLAGS) -shared $liflags -o m_$i.so m_$i.o $extra

EOCHEESE
	$crud = $crud . "	install -m \$(INSTMODE) m_$i.so \$(MODPATH)\n";
###
	# End Write Entry to the MakeFile
	###
	}
	print FILEHANDLE "modinst:\n	\@echo \"Installing modules...\"\n" . $crud;
}


sub write_static_makefile {
	open(FH,">src/Makefile") or die("Could not write src/Makefile!");
        my $i = 0;
        my @cmdlist = ();
        opendir(DIRHANDLE, "src");
        foreach $name (sort readdir(DIRHANDLE)) {
                if ($name =~ /^cmd_(.+)\.cpp$/) {
                        $cmdlist[$i++] = $1;
                }
        }
        closedir(DIRHANDLE);
        my $cmdobjs = "";
	my $srcobjs = "";
        foreach my $cmd (@cmdlist) {
                $cmdobjs = $cmdobjs . "cmd_$cmd.o ";
                $srcobjs = $srcobjs . "cmd_$cmd.cpp ";
	}
	print FH <<EOM;
# Insp Makefile :p
#
# (C) ChatSpike development team
# Makefile by <Craig\@ChatSpike.net>
# Makefile version 2 (statically linked core) by <brain\@inspircd.org>
#

CC = im a cheezeball

CXXFLAGS = -I../include \${FLAGS}
CPPFILES = \$(shell /bin/ls -l modes/ | grep '\\.cpp' | sed 's/^.* //' | grep -v svn)
RELCPPFILES = \$(shell /bin/ls -l modes/ | grep '\\.cpp' | sed 's/^.* /modes\\//' | grep -v svn)

EOM

$se = "socketengine_select";
if (($has_kqueue) && ($config{USE_KQUEUE} eq "y")) {
	$se = "socketengine_kqueue";
}       
elsif (($has_epoll) && ($config{USE_EPOLL} eq "y")) {
	$se = "socketengine_epoll";
}

	###
	# This next section is for cygwin dynamic module builds.
	# Basically, what we do, is build the inspircd core as a library
	# then the main executable uses that. the library is capable of
	# loading / unloading the modules dynamically :)
	# Massive thanks to the guys on #cygwin @ irc.freenode.net for helping
	# make this work :)
	###

	if ($config{OSNAME} =~ /CYGWIN/i) {
		print FH <<EOM;
all: timer.o command_parse.o cull_list.o userprocess.o socketengine.o socket.o hashcomp.o channels.o mode.o xline.o inspstring.o dns.o base.o configreader.o inspsocket.o $cmdobjs commands.o dynamic.o users.o modules.o wildcard.o helperfuncs.o snomasks.o inspircd.exe

inspircd.exe: inspircd.dll.a
	\$(CC) -o \$@ \$^

inspircd.dll inspircd.dll.a: inspircd.o channels.o mode.o xline.o inspstring.o dns.o base.o configreader.o inspsocket.o $cmdobjs  commands.o dynamic.o users.o modules.o wildcard.o helperfuncs.o hashcomp.o socket.o socketengine.o userprocess.o cull_list.o command_parse.o timer.o snomasks.o
	\$(CC) -shared -Wl,--out-implib=inspircd.dll.a -o inspircd.dll \$^
EOM
	} else {
		print FH <<EOM;
all: timer.o command_parse.o cull_list.o userprocess.o socketengine.o socket.o hashcomp.o channels.o mode.o xline.o inspstring.o dns.o base.o configreader.o inspsocket.o $cmdobjs commands.o dynamic.o users.o modules.o wildcard.o helperfuncs.o snomasks.o \$(MODULES) inspircd.exe

inspircd.exe: inspircd.cpp ../include/base.h ../include/channels.h ../include/inspircd.h ../include/channels.h ../include/globals.h ../include/inspircd_config.h ../include/base.h
	\$(CC) -I../include \$(FLAGS) inspircd.cpp -o inspircd.exe \$(LDLIBS) channels.o mode.o xline.o inspstring.o dns.o base.o inspsocket.o configreader.o $cmdobjs commands.o dynamic.o users.o modules.o wildcard.o helperfuncs.o hashcomp.o socket.o socketengine.o userprocess.o cull_list.o command_parse.o timer.o snomasks.o modes/modeclasses.a \$(MODULES)
EOM
	}

	print FH <<EOM;

cull_list.o: cull_list.cpp ../include/base.h ../include/hashcomp.h ../include/globals.h ../include/inspircd_config.h ../include/users.h ../include/channels.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c cull_list.cpp

snomasks.o: snomasks.cpp ../include/base.h ../include/hashcomp.h ../include/inspircd.h ../include/users.h ../include/globals.h ../include/inspircd_config.h ../include/channels.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c snomasks.cpp

command_parse.o: command_parse.cpp ../include/base.h ../include/hashcomp.h ../include/inspircd.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c command_parse.cpp

userprocess.o: userprocess.cpp ../include/base.h ../include/hashcomp.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c userprocess.cpp

socketengine.o: $se.cpp socketengine.cpp ../include/base.h ../include/hashcomp.h ../include/globals.h ../include/inspircd_config.h ../include/$se.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c socketengine.cpp $se.cpp

hashcomp.o: hashcomp.cpp ../include/base.h ../include/hashcomp.h ../include/inspircd.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c hashcomp.cpp

helperfuncs.o: helperfuncs.cpp ../include/base.h ../include/inspircd.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c helperfuncs.cpp

channels.o: channels.cpp ../include/base.h ../include/channels.h ../include/inspircd.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c channels.cpp

mode.o: mode.cpp ../include/base.h ../include/mode.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h \$(RELCPPFILES) modes/modeclasses.a
	\${MAKE} -C "modes" DIRNAME="src/modes" CC="\$(CC)" \$(MAKEARGS)
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c mode.cpp

xline.o: xline.cpp ../include/base.h ../include/xline.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c xline.cpp

inspstring.o: inspstring.cpp ../include/base.h ../include/inspstring.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c inspstring.cpp

dns.o: dns.cpp ../include/base.h ../include/dns.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h ../include/timer.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c dns.cpp

base.o: base.cpp ../include/base.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c base.cpp

configreader.o: configreader.cpp ../include/base.h ../include/configreader.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c configreader.cpp

commands.o: commands.cpp ../include/base.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h ../include/timer.h $srcobjs
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c commands.cpp $cmdobjs

dynamic.o: dynamic.cpp ../include/base.h ../include/dynamic.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c dynamic.cpp

users.o: users.cpp ../include/base.h ../include/users.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h ../include/timer.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c users.cpp

modules.o: modules.cpp ../include/base.h ../include/modules.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h ../include/timer.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c modules.cpp

wildcard.o: wildcard.cpp ../include/base.h ../include/wildcard.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c wildcard.cpp

socket.o: socket.cpp ../include/base.h ../include/inspircd.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c socket.cpp
	
inspsocket.o: inspsocket.cpp ../include/base.h ../include/inspircd.h ../include/globals.h ../include/inspircd_config.h ../include/timer.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c inspsocket.cpp

timer.o: timer.cpp ../include/base.h ../include/inspircd.h ../include/globals.h ../include/inspircd_config.h ../include/timer.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c timer.cpp

EOM
	foreach my $cmd (@cmdlist) {
		print FH <<ITEM;
cmd_$cmd.o: cmd_$cmd.cpp ../include/base.h ../include/modules.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h ../include/commands/cmd_$cmd.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c cmd_$cmd.cpp
ITEM
	}
	close(FH);
}

sub write_dynamic_makefile {

	my $i = 0;
	my @cmdlist = ();
	opendir(DIRHANDLE, "src");
	foreach $name (sort readdir(DIRHANDLE)) {
		if ($name =~ /^cmd_(.+)\.cpp$/) {
	                $cmdlist[$i++] = $1;
	    	}
	}
	closedir(DIRHANDLE);

	my $cmdobjs = "";
	my $srcobjs = "";
	foreach my $cmd (@cmdlist) {
		$cmdobjs = $cmdobjs . "cmd_$cmd.so ";
		$srcobjs = $srcobjs . "cmd_$cmd.cpp ";
	}

	$se = "socketengine_select";
	if (($has_kqueue) && ($config{USE_KQUEUE} eq "y")) {
		$se = "socketengine_kqueue";
	}
	elsif (($has_epoll) && ($config{USE_EPOLL} eq "y")) {
		$se = "socketengine_epoll";
	}

	open(FH,">src/Makefile") or die("Could not write src/Makefile");
	print FH <<EOM;
# Insp Makefile :p
#
# (C) ChatSpike development team
# Makefile by <Craig\@ChatSpike.net>
# Makefile version 2 (dynamically linked core) by <brain\@inspircd.org>
#

CC = im a cheezeball

CXXFLAGS = -I../include \${FLAGS}
CPPFILES = \$(shell /bin/ls -l modes/ | grep '\\.cpp' | sed 's/^.* //' | grep -v svn)
RELCPPFILES = \$(shell /bin/ls -l modes/ | grep '\\.cpp' | sed 's/^.* /modes\\//' | grep -v svn)

all: libIRCDtimer.so libIRCDcull_list.so libIRCDuserprocess.so libIRCDsocketengine.so libIRCDsocket.so libIRCDhash.so libIRCDchannels.so libIRCDmode.so libIRCDxline.so libIRCDstring.so libIRCDasyncdns.so libIRCDbase.so libIRCDconfigreader.so libIRCDinspsocket.so $cmdobjs libIRCDcommands.so libIRCDdynamic.so libIRCDusers.so libIRCDmodules.so libIRCDwildcard.so libIRCDhelper.so libIRCDcommand_parse.so libIRCDsnomasks.so inspircd

inspircd: inspircd.cpp ../include/base.h ../include/channels.h ../include/inspircd.h ../include/channels.h ../include/globals.h ../include/inspircd_config.h ../include/socket.h libIRCDtimer.so libIRCDcull_list.so libIRCDuserprocess.so libIRCDsocketengine.so libIRCDsocket.so libIRCDhash.so libIRCDchannels.so libIRCDmode.so libIRCDxline.so libIRCDstring.so libIRCDasyncdns.so libIRCDbase.so libIRCDconfigreader.so libIRCDinspsocket.so $cmdobjs libIRCDsnomasks.so libIRCDcommands.so libIRCDdynamic.so libIRCDusers.so libIRCDmodules.so libIRCDwildcard.so libIRCDhelper.so libIRCDcommand_parse.so
	\$(CC) -pipe -I../include $extra -Wl,--rpath -Wl,$config{LIBRARY_DIR} \$(FLAGS) -rdynamic -L. inspircd.cpp -o inspircd \$(LDLIBS) libIRCDchannels.so libIRCDmode.so libIRCDxline.so libIRCDstring.so libIRCDasyncdns.so libIRCDbase.so libIRCDconfigreader.so libIRCDinspsocket.so libIRCDcommands.so libIRCDdynamic.so libIRCDusers.so libIRCDmodules.so libIRCDwildcard.so libIRCDhelper.so libIRCDhash.so libIRCDsocket.so libIRCDsocketengine.so libIRCDuserprocess.so libIRCDcull_list.so libIRCDcommand_parse.so libIRCDtimer.so libIRCDsnomasks.so

libIRCDsocketengine.so: $se.cpp socketengine.cpp ../include/base.h ../include/hashcomp.h ../include/globals.h ../include/inspircd_config.h ../include/$se.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c socketengine.cpp $se.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDsocketengine.so socketengine.o $se.o

libIRCDsnomasks.so: snomasks.cpp ../include/base.h ../include/hashcomp.h ../include/inspircd.h ../include/users.h ../include/globals.h ../include/inspircd_config.h ../include/channels.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c snomasks.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDsnomasks.so snomasks.o

libIRCDcommand_parse.so: command_parse.cpp ../include/base.h ../include/hashcomp.h ../include/inspircd.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c command_parse.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDcommand_parse.so command_parse.o

libIRCDcull_list.so: cull_list.cpp ../include/base.h ../include/hashcomp.h ../include/globals.h ../include/inspircd_config.h ../include/users.h ../include/channels.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c cull_list.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDcull_list.so cull_list.o

libIRCDuserprocess.so: userprocess.cpp ../include/base.h ../include/hashcomp.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c userprocess.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDuserprocess.so userprocess.o

libIRCDhash.so: hashcomp.cpp ../include/base.h ../include/hashcomp.h ../include/inspircd.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c hashcomp.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDhash.so hashcomp.o

libIRCDhelper.so: helperfuncs.cpp ../include/base.h ../include/inspircd.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c helperfuncs.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDhelper.so helperfuncs.o

libIRCDchannels.so: channels.cpp ../include/base.h ../include/channels.h ../include/inspircd.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c channels.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDchannels.so channels.o

libIRCDmode.so: mode.cpp ../include/base.h ../include/mode.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h \$(RELCPPFILES)
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c mode.cpp
	\${MAKE} -C "modes" DIRNAME="src/modes" CC="\$(CC)" \$(MAKEARGS) CPPFILES="\$(CPPFILES)"
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDmode.so mode.o modes/modeclasses.a

libIRCDxline.so: xline.cpp ../include/base.h ../include/xline.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h ../include/timer.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c xline.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDxline.so xline.o

libIRCDstring.so: inspstring.cpp ../include/base.h ../include/inspstring.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c inspstring.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDstring.so inspstring.o

libIRCDasyncdns.so: dns.cpp ../include/base.h ../include/dns.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h ../include/timer.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c dns.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDasyncdns.so dns.o

libIRCDbase.so: base.cpp ../include/base.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c base.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDbase.so base.o

libIRCDconfigreader.so: configreader.cpp ../include/base.h ../include/configreader.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c configreader.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDconfigreader.so configreader.o

libIRCDcommands.so: commands.cpp ../include/base.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h ../include/timer.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c commands.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDcommands.so commands.o

libIRCDdynamic.so: dynamic.cpp ../include/base.h ../include/dynamic.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c dynamic.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDdynamic.so dynamic.o

libIRCDusers.so: users.cpp ../include/base.h ../include/users.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h ../include/timer.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c users.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDusers.so users.o

libIRCDmodules.so: modules.cpp ../include/base.h ../include/modules.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h ../include/timer.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c modules.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDmodules.so modules.o

libIRCDwildcard.so: wildcard.cpp ../include/base.h ../include/wildcard.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c wildcard.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDwildcard.so wildcard.o

libIRCDsocket.so: socket.cpp ../include/base.h ../include/inspircd.h ../include/globals.h ../include/inspircd_config.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c socket.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDsocket.so socket.o

libIRCDinspsocket.so: inspsocket.cpp ../include/base.h ../include/inspircd.h ../include/globals.h ../include/inspircd_config.h ../include/timer.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c inspsocket.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDinspsocket.so inspsocket.o

libIRCDtimer.so: timer.cpp ../include/base.h ../include/inspircd.h ../include/globals.h ../include/inspircd_config.h ../include/timer.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c timer.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o libIRCDtimer.so timer.o

EOM
	foreach my $cmd (@cmdlist) {
		print FH <<ITEM;
cmd_$cmd.so: cmd_$cmd.cpp ../include/base.h ../include/modules.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h ../include/commands/cmd_$cmd.h
	\$(CC) -pipe -I../include \$(FLAGS) -export-dynamic -c cmd_$cmd.cpp
	\$(CC) -pipe -Wl,--rpath -Wl,$config{LIBRARY_DIR} -shared -o cmd_$cmd.so cmd_$cmd.o

ITEM
	}
	close(FH);
}