]> arthur.barton.de Git - ngircd-alex.git/blobdiff - configure.in
Not only check for poll(), make sure poll.h exists as well
[ngircd-alex.git] / configure.in
index 78536e944654ea27112c06a20f5a3d5872ca2a82..f3dbd7275cd4b437d0e98e59056db607bfa92d34 100644 (file)
 #
 # ngIRCd -- The Next Generation IRC Daemon
-# Copyright (c)2001 by Alexander Barton (alex@barton.de)
+# Copyright (c)2001-2011 Alexander Barton (alex@barton.de) and Contributors
 #
-# Dieses Programm ist freie Software. Sie koennen es unter den Bedingungen
-# der GNU General Public License (GPL), wie von der Free Software Foundation
-# herausgegeben, weitergeben und/oder modifizieren, entweder unter Version 2
-# der Lizenz oder (wenn Sie es wuenschen) jeder spaeteren Version.
-# Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste
-# der an comBase beteiligten Autoren finden Sie in der Datei AUTHORS.
-#
-# $Id: configure.in,v 1.7 2001/12/27 00:37:07 alex Exp $
-#
-# $Log: configure.in,v $
-# Revision 1.7  2001/12/27 00:37:07  alex
-# - Erkennung der "portab header" geaendert, CFLAGS werden nun anders gesetzt.
-#
-# Revision 1.6  2001/12/25 22:01:47  alex
-# - neue configure-Option "--enable-sniffer".
-#
-# Revision 1.5  2001/12/21 23:54:26  alex
-# - zusaetzliche Debug-Ausgaben koennen eingeschaltet werden.
-#
-# Revision 1.4  2001/12/12 17:21:58  alex
-# - Projektdatei fuer den Mac OS X Project Builder erstellt.
-#
-# Revision 1.3  2001/12/12 01:58:53  alex
-# - Test auf socklen_t verbessert.
-#
-# Revision 1.2  2001/12/11 22:04:21  alex
-# - Test auf stdint.h (HAVE_STDINT_H) hinzugefuegt.
-#
-# Revision 1.1.1.1  2001/12/11 21:53:04  alex
-# Imported sources to CVS.
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+# Please read the file COPYING, README and AUTHORS for more information.
 #
 
-# -- Initialisierung --
+define(VERSION_ID,esyscmd(git describe|sed -e 's/rel-//g'|sed -e 's/-/~/'|tr -d \\n))
+
+# -- Initialisation --
 
-AC_INIT
+AC_PREREQ(2.50)
+AC_INIT(ngircd, VERSION_ID)
 AC_CONFIG_SRCDIR(src/ngircd/ngircd.c)
-AM_INIT_AUTOMAKE(ngircd,0.0.1-pre)
+AC_CANONICAL_TARGET
+AM_INIT_AUTOMAKE(1.6)
 AM_CONFIG_HEADER(src/config.h)
 
-# -- Variablen --
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+
+# -- Templates for config.h --
 
-CFLAGS="-Wall -g $CFLAGS"
+AH_TEMPLATE([DEBUG], [Define if debug-mode should be enabled])
+AH_TEMPLATE([HAVE_socklen_t], [Define if socklen_t exists])
+AH_TEMPLATE([SNIFFER], [Define if IRC sniffer should be enabled])
+AH_TEMPLATE([STRICT_RFC], [Define if ngIRCd should behave strict RFC compliant])
+AH_TEMPLATE([SYSLOG], [Define if syslog should be used for logging])
+AH_TEMPLATE([ZLIB], [Define if zlib compression should be enabled])
+AH_TEMPLATE([TCPWRAP], [Define if TCP wrappers should be used])
+AH_TEMPLATE([IRCPLUS], [Define if IRC+ protocol should be used])
+AH_TEMPLATE([WANT_IPV6], [Define if IPV6 protocol should be enabled])
+AH_TEMPLATE([IDENTAUTH], [Define if the server should do IDENT requests])
+AH_TEMPLATE([PAM], [Define if PAM should be used])
+AH_TEMPLATE([HAVE_sockaddr_in_len], [Define if sockaddr_in.sin_len exists])
+
+AH_TEMPLATE([TARGET_OS], [Target operating system name])
+AH_TEMPLATE([TARGET_VENDOR], [Target system vendor])
+AH_TEMPLATE([TARGET_CPU], [Target CPU name])
 
 # -- C Compiler --
 
 AC_PROG_CC
-AC_LANG_C
+AC_PROG_CC_STDC
+AC_C_PROTOTYPES
 
-# -- Hilfsprogramme --
+# -- Helper programs --
 
+AC_PROG_AWK
+AC_PROG_INSTALL
+AC_PROG_LN_S
 AC_PROG_MAKE_SET
 AC_PROG_RANLIB
 
-# -- Header --
+# -- Compiler Features --
 
-AC_HEADER_STDC
+AM_C_PROTOTYPES
+AC_C_CONST
+AC_C_INLINE
+
+# -- Hard coded system and compiler dependencies/features/options ... --
 
-AC_CHECK_HEADER(portab.h,[
-       AC_CHECK_HEADER(imp.h,,AC_MSG_ERROR([Alex \"portability headers\" (portab.h an friends) not found!]))
-       AC_CHECK_HEADER(exp.h,,AC_MSG_ERROR([Alex \"portability headers\" (portab.h an friends) not found!]))
-],[
-       AC_CHECK_HEADER(/usr/local/include/portab.h,,AC_MSG_ERROR([Alex \"portability headers\" (portab.h an friends) not found!]))
-       AC_CHECK_HEADER(/usr/local/include/imp.h,,AC_MSG_ERROR([Alex \"portability headers\" (portab.h an friends) not found!]))
-       AC_CHECK_HEADER(/usr/local/include/exp.h,,AC_MSG_ERROR([Alex \"portability headers\" (portab.h an friends) not found!]))
-       CFLAGS="$CFLAGS -I/usr/local/include"
+AC_DEFUN([GCC_STACK_PROTECT_CC],[
+  ssp_cc=yes
+  # we use -fstack-protector-all for the test to enfoce the use of the guard variable 
+  AC_MSG_CHECKING([whether ${CC} accepts -fstack-protector])
+  ssp_old_cflags="$CFLAGS"
+  CFLAGS="$CFLAGS -fstack-protector-all"
+  AC_TRY_LINK(,,, ssp_cc=no)
+  echo $ssp_cc
+  CFLAGS="$ssp_old_cflags"
+  if test "X$ssp_cc" = "Xyes"; then
+      CFLAGS="$CFLAGS -fstack-protector"
+      AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])
+  fi
 ])
 
-AC_CHECK_HEADERS([netinet/in.h sys/socket.h],,[required C headers missing!])
+if test "$GCC" = "yes"; then
+       # We are using the GNU C compiler. Good!
+       CFLAGS="$CFLAGS -pipe -W -Wall -Wpointer-arith -Wstrict-prototypes"
 
-AC_CHECK_HEADERS([stdint.h])
+       GCC_STACK_PROTECT_CC
+fi
 
-# -- Datentypen --
+case "$target_os" in
+       hpux*)
+               # This is HP/UX, we need to define _XOPEN_SOURCE_EXTENDED
+               # (tested with HP/UX 11.11)
+               CFLAGS="$CFLAGS -D_XOPEN_SOURCE_EXTENDED"
+               ;;
+esac
+
+# Add additional CFLAGS, eventually specified on the command line:
+test -n "$CFLAGS_ADD" && CFLAGS="$CFLAGS $CFLAGS_ADD"
+
+CFLAGS="$CFLAGS -DSYSCONFDIR='\"\$(sysconfdir)\"'"
+
+# -- Headers --
+
+AC_HEADER_STDC
+AC_HEADER_TIME
+AC_HEADER_SYS_WAIT
+
+AC_CHECK_HEADERS([ \
+       ctype.h errno.h fcntl.h netdb.h netinet/in.h netinet/in_systm.h \
+       stdlib.h string.h strings.h sys/socket.h sys/time.h unistd.h \
+       ],,AC_MSG_ERROR([required C header missing!]))
+
+AC_CHECK_HEADERS([ \
+       arpa/inet.h ctype.h malloc.h netinet/ip.h stdbool.h stddef.h varargs.h \
+       ],[],[],[[
+       #ifdef HAVE_SYS_TYPES_H
+               #include <sys/types.h>
+       #endif
+       #ifdef HAVE_SYS_SOCKET_H
+               #include <sys/socket.h>
+       #endif
+       #ifdef HAVE_NETINET_IN_H
+               #include <netinet/in.h>
+       #endif
+       ]]
+)
+
+# -- Datatypes --
 
 AC_MSG_CHECKING(whether socklen_t exists)
 AC_TRY_COMPILE([
-       #include <sys/socket.h>
-       #include <sys/types.h>
+#include <sys/types.h>
+#include <sys/socket.h>
        ],[
        socklen_t a, b;
        a = 2; b = 4; a += b;
@@ -88,34 +139,514 @@ AC_TRY_COMPILE([
        AC_MSG_RESULT(no)
 ])
 
-# -- Funktionen --
+AC_TYPE_SIGNAL
+AC_TYPE_SIZE_T
 
-AC_CHECK_FUNCS([socket],,[required functions missing!])
+AC_CHECK_MEMBER([struct sockaddr_in.sin_len], AC_DEFINE(HAVE_sockaddr_in_len),,
+ [#include <arpa/inet.h>])
 
 # -- Libraries --
 
-# -- Konfigurationsoptionen --
+# A/UX needs this.
+AC_CHECK_LIB(UTIL,memmove)
+# needed on solaris. GNU libc also has a libnsl, but we do not need it.
+AC_SEARCH_LIBS(gethostbyname,nsl)
+AC_CHECK_LIB(socket,bind)
 
-AC_ARG_ENABLE(debug,
-       [  --enable-debug          show additional debug output],
-       if test "$enableval" = "yes"; then
-               AC_DEFINE(DEBUG, 1)
-               AC_MSG_RESULT([enabling additional debug output])
+# -- Functions --
+
+AC_FUNC_FORK
+AC_FUNC_STRFTIME
+
+AC_CHECK_FUNCS([ \
+       bind gethostbyaddr gethostbyname gethostname inet_ntoa \
+       setsid setsockopt socket strcasecmp waitpid],,
+       AC_MSG_ERROR([required function missing!]))
+
+AC_CHECK_FUNCS([ \
+       gai_strerror getaddrinfo getnameinfo inet_aton sigaction \
+       sigprocmask snprintf vsnprintf strdup strlcpy strlcat strtok_r])
+
+# -- Configuration options --
+
+# use syslog?
+
+x_syslog_on=no
+AC_ARG_WITH(syslog,
+       [  --without-syslog        disable syslog (autodetected by default)],
+       [       if test "$withval" != "no"; then
+                       if test "$withval" != "yes"; then
+                               CFLAGS="-I$withval/include $CFLAGS"
+                               CPPFLAGS="-I$withval/include $CPPFLAGS"
+                               LDFLAGS="-L$withval/lib $LDFLAGS"
+                       fi
+                       AC_CHECK_LIB(be, syslog)
+                       AC_CHECK_FUNCS(syslog, x_syslog_on=yes,
+                               AC_MSG_ERROR([Can't enable syslog!])
+                       )
+               fi
+       ],
+       [
+               AC_CHECK_LIB(be, syslog)
+               AC_CHECK_FUNCS(syslog, x_syslog_on=yes)
+       ]
+)
+if test "$x_syslog_on" = "yes"; then
+       AC_DEFINE(SYSLOG, 1)
+       AC_CHECK_HEADERS(syslog.h,,AC_MSG_ERROR([required C header missing!]))
+fi
+
+# use zlib compression?
+
+x_zlib_on=no
+AC_ARG_WITH(zlib,
+       [  --without-zlib          disable zlib compression (autodetected by default)],
+       [       if test "$withval" != "no"; then
+                       if test "$withval" != "yes"; then
+                               CFLAGS="-I$withval/include $CFLAGS"
+                               CPPFLAGS="-I$withval/include $CPPFLAGS"
+                               LDFLAGS="-L$withval/lib $LDFLAGS"
+                       fi
+                       AC_CHECK_LIB(z, deflate)
+                       AC_CHECK_FUNCS(deflate, x_zlib_on=yes,
+                               AC_MSG_ERROR([Can't enable zlib!])
+                       )
+               fi
+       ],
+       [       AC_CHECK_LIB(z, deflate)
+               AC_CHECK_FUNCS(deflate, x_zlib_on=yes)
+       ]
+)
+if test "$x_zlib_on" = "yes"; then
+       AC_DEFINE(ZLIB, 1)
+       AC_CHECK_HEADERS(zlib.h,,AC_MSG_ERROR([required C header missing!]))
+fi
+
+# detect which IO API to use:
+
+x_io_backend=none
+
+AC_ARG_WITH(select,
+       [  --without-select        disable select IO support (autodetected by default)],
+       [       if test "$withval" != "no"; then
+                       if test "$withval" != "yes"; then
+                               CFLAGS="-I$withval/include $CFLAGS"
+                               CPPFLAGS="-I$withval/include $CPPFLAGS"
+                               LDFLAGS="-L$withval/lib $LDFLAGS"
+                       fi
+                       AC_CHECK_FUNCS(select, x_io_select=yes,
+                               AC_MSG_ERROR([Can't enable select IO support!])
+                       )
+               fi
+       ],
+       [
+               AC_CHECK_FUNCS(select, x_io_select=yes)
+       ]
+)
+
+AC_ARG_WITH(poll,
+       [  --without-poll          disable poll support (autodetected by default)],
+       [       if test "$withval" != "no"; then
+                       if test "$withval" != "yes"; then
+                               CFLAGS="-I$withval/include $CFLAGS"
+                               CPPFLAGS="-I$withval/include $CPPFLAGS"
+                               LDFLAGS="-L$withval/lib $LDFLAGS"
+                       fi
+                       AC_CHECK_FUNCS(poll,
+                               AC_CHECK_HEADERS(poll.h,
+                                       x_io_backend=poll\(\),
+                                               AC_MSG_ERROR(
+                                               [Can't enable poll IO support!])
+                                       ,
+                                       AC_MSG_ERROR(
+                                               [Can't enable poll IO support!])
+                               )
+                       )
+               fi
+       ],
+       [
+               AC_CHECK_FUNCS(poll,
+                       AC_CHECK_HEADERS(poll.h, x_io_backend=poll\(\))
+               )
+       ]
+)
+
+AC_ARG_WITH(devpoll,
+       [  --without-devpoll       disable /dev/poll IO support (autodetected by default)],
+       [       if test "$withval" != "no"; then
+                       if test "$withval" != "yes"; then
+                               CFLAGS="-I$withval/include $CFLAGS"
+                               CPPFLAGS="-I$withval/include $CPPFLAGS"
+                               LDFLAGS="-L$withval/lib $LDFLAGS"
+                       fi
+
+                               AC_CHECK_HEADERS(sys/devpoll.h,,AC_MSG_ERROR([required C header missing!]))
+               fi
+       ],
+       [
+               AC_CHECK_HEADERS(sys/devpoll.h, x_io_backend=/dev/poll)
+       ]
+)
+
+AC_ARG_WITH(epoll,
+       [  --without-epoll         disable epoll IO support (autodetected by default)],
+       [       if test "$withval" != "no"; then
+                       if test "$withval" != "yes"; then
+                               CFLAGS="-I$withval/include $CFLAGS"
+                               CPPFLAGS="-I$withval/include $CPPFLAGS"
+                               LDFLAGS="-L$withval/lib $LDFLAGS"
+                       fi
+                       AC_CHECK_FUNCS(epoll_create, x_io_epoll=yes,
+                               AC_MSG_ERROR([Can't enable epoll IO support!])
+                       )
+               fi
+       ],
+       [
+               AC_CHECK_FUNCS(epoll_create, x_io_epoll=yes)
+       ]
+)
+
+AC_ARG_WITH(kqueue,
+       [  --without-kqueue        disable kqueue IO support (autodetected by default)],
+       [       if test "$withval" != "no"; then
+                       if test "$withval" != "yes"; then
+                               CFLAGS="-I$withval/include $CFLAGS"
+                               CPPFLAGS="-I$withval/include $CPPFLAGS"
+                               LDFLAGS="-L$withval/lib $LDFLAGS"
+                       fi
+                       AC_CHECK_FUNCS(kqueue, x_io_backend=kqueue\(\),
+                               AC_MSG_ERROR([Can't enable kqueue IO support!])
+                       )
+               fi
+       ],
+       [
+               AC_CHECK_FUNCS(kqueue, x_io_backend=kqueue\(\))
+       ]
+)
+
+if test "$x_io_epoll" = "yes" -a "$x_io_select" = "yes"; then
+       # when epoll() and select() are available, we'll use both!
+       x_io_backend="epoll(), select()"
+else
+       if test "$x_io_epoll" = "yes"; then
+               # we prefere epoll() if it is available
+               x_io_backend="epoll()"
+       else
+               if test "$x_io_select" = "yes" -a "$x_io_backend" = "none"; then
+                       # we'll use select, when available and no "better"
+                       # interface has been detected ...
+                       x_io_backend="select()"
+               fi
        fi
+fi
+
+if test "$x_io_backend" = "none"; then
+       AC_MSG_ERROR([No useabe IO API activated/found!?])
+fi
+
+# use SSL?
+
+AC_ARG_WITH(openssl,
+       [  --with-openssl          enable SSL support using OpenSSL],
+       [       if test "$withval" != "no"; then
+                       if test "$withval" != "yes"; then
+                               CFLAGS="-I$withval/include $CFLAGS"
+                               CPPFLAGS="-I$withval/include $CPPFLAGS"
+                               LDFLAGS="-L$withval/lib $LDFLAGS"
+                       fi
+                       AC_CHECK_LIB(crypto, BIO_s_mem)
+                       AC_CHECK_LIB(ssl, SSL_library_init)
+                       AC_CHECK_FUNCS(SSL_library_init, x_ssl_openssl=yes,
+                               AC_MSG_ERROR([Can't enable openssl])
+                       )
+               fi
+       ]
+)
+
+AC_ARG_WITH(gnutls,
+       [  --with-gnutls           enable SSL support using gnutls],
+       [       if test "$withval" != "no"; then
+                       if test "$withval" != "yes"; then
+                               CFLAGS="-I$withval/include $CFLAGS"
+                               CPPFLAGS="-I$withval/include $CPPFLAGS"
+                               LDFLAGS="-L$withval/lib $LDFLAGS"
+                       fi
+                       AC_CHECK_LIB(gnutls, gnutls_global_init)
+                       AC_CHECK_FUNCS(gnutls_global_init, x_ssl_gnutls=yes,
+                               AC_MSG_ERROR([Can't enable gnutls])
+                       )
+               fi
+       ]
+)
+
+x_ssl_lib="no"
+if test "$x_ssl_gnutls" = "yes"; then
+       if test "$x_ssl_openssl" = "yes";then
+               AC_MSG_ERROR([Cannot enable both gnutls and openssl])
+       fi
+       x_ssl_lib=gnutls
+fi
+if test "$x_ssl_openssl" = "yes"; then
+       x_ssl_lib=openssl
+fi
+
+# use TCP wrappers?
+
+x_tcpwrap_on=no
+AC_ARG_WITH(tcp-wrappers,
+       [  --with-tcp-wrappers     enable TCP wrappers support],
+       [       if test "$withval" != "no"; then
+                       if test "$withval" != "yes"; then
+                               CFLAGS="-I$withval/include $CFLAGS"
+                               CPPFLAGS="-I$withval/include $CPPFLAGS"
+                               LDFLAGS="-L$withval/lib $LDFLAGS"
+                       fi
+                       AC_MSG_CHECKING(for hosts_access)
+                       LIBS="-lwrap $LIBS"
+                       AC_TRY_LINK([
+#include <tcpd.h>
+int allow_severity = 0;
+int deny_severity = 0;
+                               ],[
+                               tcpd_warn("link test");
+                               ],[
+                               AC_MSG_RESULT(yes)
+                               AC_DEFINE(TCPWRAP, 1)
+                               x_tcpwrap_on=yes
+                               ],[
+                               AC_MSG_RESULT(no)
+                               AC_MSG_ERROR([Can't enable TCP wrappers!])
+                       ])
+               fi
+       ]
+)
+
+# do IDENT requests using libident?
+
+x_identauth_on=no
+AC_ARG_WITH(ident,
+       [  --with-ident            enable "IDENT" ("AUTH") protocol support],
+       [       if test "$withval" != "no"; then
+                       if test "$withval" != "yes"; then
+                               CFLAGS="-I$withval/include $CFLAGS"
+                               CPPFLAGS="-I$withval/include $CPPFLAGS"
+                               LDFLAGS="-L$withval/lib $LDFLAGS"
+                       fi
+                       AC_CHECK_LIB(ident, ident_id)
+                       AC_CHECK_FUNCS(ident_id, x_identauth_on=yes,
+                               AC_MSG_ERROR([Can't enable IDENT support!])
+                       )
+               fi
+       ]
 )
+if test "$x_identauth_on" = "yes"; then
+       AC_DEFINE(IDENTAUTH, 1)
+       AC_CHECK_HEADERS(ident.h,,AC_MSG_ERROR([required C header missing!]))
+fi
 
+# compile in PAM support?
+
+x_pam_on=no
+AC_ARG_WITH(pam,
+       [  --with-pam              enable user authentication using PAM],
+       [       if test "$withval" != "no"; then
+                       if test "$withval" != "yes"; then
+                               CFLAGS="-I$withval/include $CFLAGS"
+                               CPPFLAGS="-I$withval/include $CPPFLAGS"
+                               LDFLAGS="-L$withval/lib $LDFLAGS"
+                       fi
+                       AC_CHECK_LIB(pam, pam_authenticate)
+                       AC_CHECK_FUNCS(pam_authenticate, x_pam_on=yes,
+                               AC_MSG_ERROR([Can't enable PAM support!])
+                       )
+               fi
+       ]
+)
+if test "$x_pam_on" = "yes"; then
+       AC_DEFINE(PAM, 1)
+       AC_CHECK_HEADERS(security/pam_appl.h,pam_ok=yes)
+       if test "$pam_ok" != "yes"; then
+               AC_CHECK_HEADERS(pam/pam_appl.h,pam_ok=yes,
+                       AC_MSG_ERROR([required C header missing!]))
+       fi
+fi
+
+# compile in IRC+ protocol support?
+
+x_ircplus_on=yes
+AC_ARG_ENABLE(ircplus,
+       [  --disable-ircplus       disable IRC+ protocol],
+       if test "$enableval" = "no"; then x_ircplus_on=no; fi
+)
+if test "$x_ircplus_on" = "yes"; then
+       AC_DEFINE(IRCPLUS, 1)
+fi
+
+# enable support for IPv6?
+x_ipv6_on=no
+AC_ARG_ENABLE(ipv6,
+       [  --enable-ipv6           enable IPv6 protocol support],
+       if test "$enableval" = "yes"; then x_ipv6_on=yes; fi
+)
+if test "$x_ipv6_on" = "yes"; then
+       # getaddrinfo() and getnameinfo() are optional when not compiling
+       # with IPv6 support, but are required for IPv6 to work!
+       AC_CHECK_FUNCS([ \
+               getaddrinfo getnameinfo \
+               ],,AC_MSG_ERROR([required function missing for IPv6 support!]))
+       AC_DEFINE(WANT_IPV6, 1)
+fi
+
+# compile in IRC "sniffer"?
+
+x_sniffer_on=no; x_debug_on=no
 AC_ARG_ENABLE(sniffer,
-       [  --enable-sniffer        enable network traffic monitor (enables debug mode!)],
+       [  --enable-sniffer        enable IRC traffic sniffer (enables debug mode)],
        if test "$enableval" = "yes"; then
-               AC_DEFINE(DEBUG, 1)
-               AC_MSG_RESULT([enabling additional debug output])
                AC_DEFINE(SNIFFER, 1)
-               AC_MSG_RESULT([enabling network traffic monitor])
+               x_sniffer_on=yes; x_debug_on=yes
        fi
 )
 
-# -- Ausgabe --
+# enable additional debugging code?
+
+AC_ARG_ENABLE(debug,
+       [  --enable-debug          show additional debug output],
+       if test "$enableval" = "yes"; then x_debug_on=yes; fi
+)
+if test "$x_debug_on" = "yes"; then
+       AC_DEFINE(DEBUG, 1)
+       test "$GCC" = "yes" && CFLAGS="-pedantic $CFLAGS"
+       AC_CHECK_FUNCS(mtrace)
+fi
+
+# enable "strict RFC rules"?
+
+x_strict_rfc_on=no
+AC_ARG_ENABLE(strict-rfc,
+       [  --enable-strict-rfc     strict RFC conformance -- may break clients!],
+       if test "$enableval" = "yes"; then
+               AC_DEFINE(STRICT_RFC, 1)
+               x_strict_rfc_on=yes
+       fi
+)
+
+# -- Definitions --
+
+AC_DEFINE_UNQUOTED(TARGET_CPU, "$target_cpu" )
+AC_DEFINE_UNQUOTED(TARGET_VENDOR, "$target_vendor" )
+AC_DEFINE_UNQUOTED(TARGET_OS, "$target_os" )
+
+# Add additional CFLAGS, eventually specified on the command line, but after
+# running this configure script. Useful for "-Werror" for example.
+test -n "$CFLAGS_END" && CFLAGS="$CFLAGS $CFLAGS_END"
+
+# -- Generate files --
+
+AC_OUTPUT([ \
+       Makefile \
+       doc/Makefile \
+       doc/src/Makefile \
+       src/Makefile \
+       src/portab/Makefile \
+       src/ipaddr/Makefile \
+       src/tool/Makefile \
+       src/ngircd/Makefile \
+       src/testsuite/Makefile \
+       man/Makefile \
+       contrib/Makefile \
+       contrib/Anope/Makefile \
+       contrib/Debian/Makefile \
+       contrib/MacOSX/Makefile \
+       contrib/MacOSX/ngIRCd.xcodeproj/Makefile \
+       contrib/MacOSX/ngIRCd.pmdoc/Makefile \
+])
+
+type dpkg >/dev/null 2>&1
+if test $? -eq 0; then
+       # Generate debian/ link if the dpkg command exists
+       # (read: if we are running on a debian compatible system)
+       echo "creating Debian-specific links ..."
+       test -f debian/rules || ln -s contrib/Debian debian
+fi
+
+# -- Result --
+
+echo
+echo "ngIRCd $PACKAGE_VERSION has been configured with the following options:"
+echo
+
+# Someone please show me a better way :)  [borrowed by OpenSSH]
+B=`eval echo ${bindir}` ; B=`eval echo ${B}`
+S=`eval echo ${sbindir}` ; S=`eval echo ${S}`
+C=`eval echo ${sysconfdir}` ; C=`eval echo ${C}`
+M=`eval echo ${mandir}` ; M=`eval echo ${M}`
+D=`eval echo ${docdir}` ; D=`eval echo ${D}`
+
+echo "             Target: ${target}"
+test "$target" != "$host" && echo "               Host: ${host}"
+echo "           Compiler: ${CC}"
+test -n "$CFLAGS"      && echo "     Compiler flags: ${CFLAGS}"
+test -n "$CPPFLAGS"    && echo " Preprocessor flags: ${CPPFLAGS}"
+test -n "$LDFLAGS"     && echo "       Linker flags: ${LDFLAGS}"
+test -n "$LIBS"                && echo "          Libraries: ${LIBS}"
+echo
+echo "    'ngircd' binary: $S"
+echo " Configuration file: $C"
+echo "       Manual pages: $M"
+echo "      Documentation: $D"
+echo
+
+echo $ECHO_N "     Syslog support: $ECHO_C"
+test "$x_syslog_on" = "yes" \
+       && echo $ECHO_N "yes   $ECHO_C" \
+       || echo $ECHO_N "no    $ECHO_C"
+echo $ECHO_N "  Enable debug code: $ECHO_C"
+test "$x_debug_on" = "yes" \
+       && echo "yes" \
+       || echo "no"
+
+echo $ECHO_N "   zlib compression: $ECHO_C"
+test "$x_zlib_on" = "yes" \
+       && echo $ECHO_N "yes   $ECHO_C" \
+       || echo $ECHO_N "no    $ECHO_C"
+echo $ECHO_N "        IRC sniffer: $ECHO_C"
+test "$x_sniffer_on" = "yes" \
+       && echo "yes" \
+       || echo "no"
+
+echo $ECHO_N "   Use TCP Wrappers: $ECHO_C"
+test "$x_tcpwrap_on" = "yes" \
+       && echo $ECHO_N "yes   $ECHO_C" \
+       || echo $ECHO_N "no    $ECHO_C"
+echo $ECHO_N "    Strict RFC mode: $ECHO_C"
+test "$x_strict_rfc_on" = "yes" \
+       && echo "yes" \
+       || echo "no"
+
+echo $ECHO_N "      IDENT support: $ECHO_C"
+test "$x_identauth_on" = "yes" \
+       && echo $ECHO_N "yes   $ECHO_C" \
+       || echo $ECHO_N "no    $ECHO_C"
+echo $ECHO_N "      IRC+ protocol: $ECHO_C"
+test "$x_ircplus_on" = "yes" \
+       && echo "yes" \
+       || echo "no"
+
+echo $ECHO_N "      IPv6 protocol: $ECHO_C"
+test "$x_ipv6_on" = "yes" \
+       && echo $ECHO_N "yes   $ECHO_C" \
+       || echo $ECHO_N "no    $ECHO_C"
+echo $ECHO_N "        I/O backend: $ECHO_C"
+       echo "\"$x_io_backend\""
+
+echo $ECHO_N "        PAM support: $ECHO_C"
+test "$x_pam_on" = "yes" \
+       && echo $ECHO_N "yes   $ECHO_C" \
+       || echo $ECHO_N "no    $ECHO_C"
+echo $ECHO_N "        SSL support: $ECHO_C"
+echo "$x_ssl_lib"
 
-AC_OUTPUT([Makefile MacOSX/Makefile src/Makefile src/ngircd/Makefile])
+echo
 
 # -eof-