configure.in

   1 #
   2 # ngIRCd -- The Next Generation IRC Daemon
   3 # Copyright (c)2001-2005 Alexander Barton <alex@barton.de>
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2 of the License, or
   8 # (at your option) any later version.
   9 # Please read the file COPYING, README and AUTHORS for more information.
  10 #
  11 # $Id: configure.in,v 1.125 2006/12/26 16:00:45 alex Exp $
  12 #
  13
  14 # -- Initialisation --
  15
  16 AC_PREREQ(2.50)
  17 AC_INIT(ngircd, CVSHEAD)
  18 AC_CONFIG_SRCDIR(src/ngircd/ngircd.c)
  19 AC_CANONICAL_TARGET
  20 AM_INIT_AUTOMAKE(1.6)
  21 AM_CONFIG_HEADER(src/config.h)
  22
  23 # -- Templates for config.h --
  24
  25 AH_TEMPLATE([DEBUG], [Define if debug-mode should be enabled])
  26 AH_TEMPLATE([HAVE_socklen_t], [Define if socklen_t exists])
  27 AH_TEMPLATE([SNIFFER], [Define if IRC sniffer should be enabled])
  28 AH_TEMPLATE([STRICT_RFC], [Define if ngIRCd should behave strict RFC compliant])
  29 AH_TEMPLATE([SYSLOG], [Define if syslog should be used for logging])
  30 AH_TEMPLATE([ZLIB], [Define if zlib compression should be enabled])
  31 AH_TEMPLATE([TCPWRAP], [Define if TCP wrappers should be used])
  32 AH_TEMPLATE([IRCPLUS], [Define if IRC+ protocol should be used])
  33 AH_TEMPLATE([ZEROCONF], [Define if support for Zeroconf should be included])
  34 AH_TEMPLATE([IDENTAUTH], [Define if the server should do IDENT requests])
  35
  36 AH_TEMPLATE([TARGET_OS], [Target operating system name])
  37 AH_TEMPLATE([TARGET_VENDOR], [Target system vendor])
  38 AH_TEMPLATE([TARGET_CPU], [Target CPU name])
  39
  40 # -- C Compiler --
  41
  42 AC_PROG_CC
  43
  44 # -- Helper programs --
  45
  46 AC_PROG_AWK
  47 AC_PROG_INSTALL
  48 AC_PROG_LN_S
  49 AC_PROG_MAKE_SET
  50 AC_PROG_RANLIB
  51
  52 # -- Compiler Features --
  53
  54 AM_C_PROTOTYPES
  55 AC_C_CONST
  56 AC_C_INLINE
  57
  58 # -- Hard coded system and compiler dependencies/features/options ... --
  59
  60 AC_DEFUN([GCC_STACK_PROTECT_CC],[
  61   ssp_cc=yes
  62   # we use -fstack-protector-all for the test to enfoce the use of the guard variable
  63   AC_MSG_CHECKING([whether ${CC} accepts -fstack-protector])
  64   ssp_old_cflags="$CFLAGS"
  65   CFLAGS="$CFLAGS -fstack-protector-all"
  66   AC_TRY_LINK(,,, ssp_cc=no)
  67   echo $ssp_cc
  68   CFLAGS="$ssp_old_cflags"
  69   if test "X$ssp_cc" = "Xyes"; then
  70       CFLAGS="$CFLAGS -fstack-protector"
  71       AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])
  72   fi
  73 ])
  74
  75
  76 if test "$GCC" = "yes"; then
  77         # We are using the GNU C compiler. Good!
  78         CFLAGS="$CFLAGS -pipe -W -Wall -Wpointer-arith -Wstrict-prototypes"
  79
  80         GCC_STACK_PROTECT_CC
  81 fi
  82
  83 case "$target_os" in
  84         hpux*)
  85                 # This is HP/UX, we need to define _XOPEN_SOURCE_EXTENDED
  86                 # (tested with HP/UX 11.11)
  87                 CFLAGS="$CFLAGS -D_XOPEN_SOURCE_EXTENDED"
  88                 ;;
  89 esac
  90
  91 # Add additional CFLAGS, eventually specified on the command line:
  92 test -n "$CFLAGS_ADD" && CFLAGS="$CFLAGS $CFLAGS_ADD"
  93
  94 CFLAGS="$CFLAGS -DSYSCONFDIR='\"\$(sysconfdir)\"'"
  95
  96 # -- Headers --
  97
  98 AC_HEADER_STDC
  99 AC_HEADER_TIME
 100 AC_HEADER_SYS_WAIT
 101
 102 AC_CHECK_HEADERS([ \
 103         ctype.h errno.h fcntl.h netdb.h netinet/in.h stdlib.h string.h \
 104         strings.h sys/socket.h sys/time.h unistd.h \
 105         ],,AC_MSG_ERROR([required C header missing!]))
 106
 107 AC_CHECK_HEADERS([arpa/inet.h ctype.h malloc.h stdbool.h stddef.h varargs.h])
 108
 109 # -- Datatypes --
 110
 111 AC_MSG_CHECKING(whether socklen_t exists)
 112 AC_TRY_COMPILE([
 113 #include <sys/types.h>
 114 #include <sys/socket.h>
 115         ],[
 116         socklen_t a, b;
 117         a = 2; b = 4; a += b;
 118         ],[
 119         AC_DEFINE(HAVE_socklen_t) AC_MSG_RESULT(yes)
 120         ],[
 121         AC_MSG_RESULT(no)
 122 ])
 123
 124 AC_TYPE_SIGNAL
 125 AC_TYPE_SIZE_T
 126
 127
 128 # -- Libraries --
 129
 130 AC_CHECK_LIB(UTIL,memmove)
 131 AC_CHECK_LIB(socket,bind)
 132 AC_CHECK_LIB(nsl,gethostent)
 133
 134 # -- Functions --
 135
 136 AC_FUNC_FORK
 137 AC_FUNC_STRFTIME
 138
 139 AC_CHECK_FUNCS([ \
 140         bind gethostbyaddr gethostbyname gethostname inet_ntoa malloc memmove \
 141         memset realloc setsid setsockopt socket strcasecmp strchr strcspn strerror \
 142         strstr waitpid],,AC_MSG_ERROR([required function missing!]))
 143
 144 AC_CHECK_FUNCS(inet_aton isdigit sigaction snprintf vsnprintf strdup strlcpy strlcat)
 145
 146 # -- Configuration options --
 147
 148 # use syslog?
 149
 150 x_syslog_on=no
 151 AC_ARG_WITH(syslog,
 152         [  --without-syslog        disable syslog (autodetected by default)],
 153         [       if test "$withval" != "no"; then
 154                         if test "$withval" != "yes"; then
 155                                 CFLAGS="-I$withval/include $CFLAGS"
 156                                 CPPFLAGS="-I$withval/include $CPPFLAGS"
 157                                 LDFLAGS="-L$withval/lib $LDFLAGS"
 158                         fi
 159                         AC_CHECK_LIB(be, syslog)
 160                         AC_CHECK_FUNCS(syslog, x_syslog_on=yes,
 161                                 AC_MSG_ERROR([Can't enable syslog!])
 162                         )
 163                 fi
 164         ],
 165         [
 166                 AC_CHECK_LIB(be, syslog)
 167                 AC_CHECK_FUNCS(syslog, x_syslog_on=yes)
 168         ]
 169 )
 170 if test "$x_syslog_on" = "yes"; then
 171         AC_DEFINE(SYSLOG, 1)
 172         AC_CHECK_HEADERS(syslog.h,,AC_MSG_ERROR([required C header missing!]))
 173 fi
 174
 175 # use zlib compression?
 176
 177 x_zlib_on=no
 178 AC_ARG_WITH(zlib,
 179         [  --without-zlib          disable zlib compression (autodetected by default)],
 180         [       if test "$withval" != "no"; then
 181                         if test "$withval" != "yes"; then
 182                                 CFLAGS="-I$withval/include $CFLAGS"
 183                                 CPPFLAGS="-I$withval/include $CPPFLAGS"
 184                                 LDFLAGS="-L$withval/lib $LDFLAGS"
 185                         fi
 186                         AC_CHECK_LIB(z, deflate)
 187                         AC_CHECK_FUNCS(deflate, x_zlib_on=yes,
 188                                 AC_MSG_ERROR([Can't enable zlib!])
 189                         )
 190                 fi
 191         ],
 192         [       AC_CHECK_LIB(z, deflate)
 193                 AC_CHECK_FUNCS(deflate, x_zlib_on=yes)
 194         ]
 195 )
 196 if test "$x_zlib_on" = "yes"; then
 197         AC_DEFINE(ZLIB, 1)
 198         AC_CHECK_HEADERS(zlib.h,,AC_MSG_ERROR([required C header missing!]))
 199 fi
 200
 201 # detect which IO API to use:
 202
 203 x_io_backend=none
 204
 205 AC_ARG_WITH(select,
 206         [  --without-select        disable select IO support (autodetected by default)],
 207         [       if test "$withval" != "no"; then
 208                         if test "$withval" != "yes"; then
 209                                 CFLAGS="-I$withval/include $CFLAGS"
 210                                 CPPFLAGS="-I$withval/include $CPPFLAGS"
 211                                 LDFLAGS="-L$withval/lib $LDFLAGS"
 212                         fi
 213                         AC_CHECK_FUNCS(select, x_io_select=yes,
 214                                 AC_MSG_ERROR([Can't enable select IO support!])
 215                         )
 216                 fi
 217         ],
 218         [
 219                 AC_CHECK_FUNCS(select, x_io_select=yes)
 220         ]
 221 )
 222
 223 AC_ARG_WITH(poll,
 224         [  --without-poll          disable poll support (autodetected by default)],
 225         [       if test "$withval" != "no"; then
 226                         if test "$withval" != "yes"; then
 227                                 CFLAGS="-I$withval/include $CFLAGS"
 228                                 CPPFLAGS="-I$withval/include $CPPFLAGS"
 229                                 LDFLAGS="-L$withval/lib $LDFLAGS"
 230                         fi
 231                         AC_CHECK_FUNCS(poll, x_io_backend=poll\(\),
 232                                 AC_MSG_ERROR([Can't enable poll IO support!])
 233                         )
 234                 fi
 235         ],
 236         [
 237                 AC_CHECK_FUNCS(poll, x_io_backend=poll\(\))
 238         ]
 239 )
 240
 241 AC_ARG_WITH(devpoll,
 242         [  --without-devpoll       disable /dev/poll IO support (autodetected by default)],
 243         [       if test "$withval" != "no"; then
 244                         if test "$withval" != "yes"; then
 245                                 CFLAGS="-I$withval/include $CFLAGS"
 246                                 CPPFLAGS="-I$withval/include $CPPFLAGS"
 247                                 LDFLAGS="-L$withval/lib $LDFLAGS"
 248                         fi
 249
 250                                 AC_CHECK_HEADERS(sys/devpoll.h,,AC_MSG_ERROR([required C header missing!]))
 251                 fi
 252         ],
 253         [
 254                 AC_CHECK_HEADERS(sys/devpoll.h, x_io_backend=/dev/poll)
 255         ]
 256 )
 257
 258 AC_ARG_WITH(epoll,
 259         [  --without-epoll         disable epoll IO support (autodetected by default)],
 260         [       if test "$withval" != "no"; then
 261                         if test "$withval" != "yes"; then
 262                                 CFLAGS="-I$withval/include $CFLAGS"
 263                                 CPPFLAGS="-I$withval/include $CPPFLAGS"
 264                                 LDFLAGS="-L$withval/lib $LDFLAGS"
 265                         fi
 266                         AC_CHECK_FUNCS(epoll_create, x_io_epoll=yes,
 267                                 AC_MSG_ERROR([Can't enable epoll IO support!])
 268                         )
 269                 fi
 270         ],
 271         [
 272                 AC_CHECK_FUNCS(epoll_create, x_io_epoll=yes)
 273         ]
 274 )
 275
 276 AC_ARG_WITH(kqueue,
 277         [  --without-kqueue        disable kqueue IO support (autodetected by default)],
 278         [       if test "$withval" != "no"; then
 279                         if test "$withval" != "yes"; then
 280                                 CFLAGS="-I$withval/include $CFLAGS"
 281                                 CPPFLAGS="-I$withval/include $CPPFLAGS"
 282                                 LDFLAGS="-L$withval/lib $LDFLAGS"
 283                         fi
 284                         AC_CHECK_FUNCS(kqueue, x_io_backend=kqueue\(\),
 285                                 AC_MSG_ERROR([Can't enable kqueue IO support!])
 286                         )
 287                 fi
 288         ],
 289         [
 290                 AC_CHECK_FUNCS(kqueue, x_io_backend=kqueue\(\))
 291         ]
 292 )
 293
 294 if test "$x_io_epoll" = "yes" -a "$x_io_select" = "yes"; then
 295         # when epoll() and select() are available, we'll use both!
 296         x_io_backend="epoll(), select()"
 297 else
 298         if test "$x_io_epoll" = "yes"; then
 299                 # we prefere epoll() if it is available
 300                 x_io_backend="epoll()"
 301         else
 302                 if test "$x_io_select" = "yes" -a "$x_io_backend" = "none"; then
 303                         # we'll use select, when available and no "better"
 304                         # interface has been detected ...
 305                         x_io_backend="select()"
 306                 fi
 307         fi
 308 fi
 309
 310 if test "$x_io_backend" = "none"; then
 311         AC_MSG_ERROR([No useabe IO API activated/found!?])
 312 fi
 313
 314 # use TCP wrappers?
 315
 316 x_tcpwrap_on=no
 317 AC_ARG_WITH(tcp-wrappers,
 318         [  --with-tcp-wrappers     enable TCP wrappers support],
 319         [       if test "$withval" != "no"; then
 320                         if test "$withval" != "yes"; then
 321                                 CFLAGS="-I$withval/include $CFLAGS"
 322                                 CPPFLAGS="-I$withval/include $CPPFLAGS"
 323                                 LDFLAGS="-L$withval/lib $LDFLAGS"
 324                         fi
 325                         AC_MSG_CHECKING(for hosts_access)
 326                         LIBS="-lwrap $LIBS"
 327                         AC_TRY_LINK([
 328 #include <tcpd.h>
 329 int allow_severity = 0;
 330 int deny_severity = 0;
 331                                 ],[
 332                                 tcpd_warn("link test");
 333                                 ],[
 334                                 AC_MSG_RESULT(yes)
 335                                 AC_DEFINE(TCPWRAP, 1)
 336                                 x_tcpwrap_on=yes
 337                                 ],[
 338                                 AC_MSG_RESULT(no)
 339                                 AC_MSG_ERROR([Can't enable TCP wrappers!])
 340                         ])
 341                 fi
 342         ]
 343 )
 344
 345 # include support for "zeroconf"?
 346
 347 x_zeroconf_on=no
 348 AC_ARG_WITH(zeroconf,
 349         [  --with-zeroconf         enable support for "Zeroconf"],
 350         [       if test "$withval" != "no"; then
 351                         if test "$withval" != "yes"; then
 352                                 CFLAGS="-I$withval/include $CFLAGS"
 353                                 CPPFLAGS="-I$withval/include $CPPFLAGS"
 354                                 LDFLAGS="-L$withval/lib $LDFLAGS"
 355                         fi
 356                         AC_CHECK_FUNCS(DNSServiceRegistrationCreate, x_zeroconf_on=osx,
 357                         [
 358                                 AC_CHECK_LIB(pthread, pthread_mutexattr_init)
 359                                 AC_CHECK_LIB(howl, sw_discovery_init)
 360                                 AC_CHECK_FUNCS(sw_discovery_init, \
 361                                  x_zeroconf_on=howl, \
 362                                  AC_MSG_ERROR([Can't enable Zeroconf!]))
 363                         ])
 364                 fi
 365         ]
 366 )
 367 if test "$x_zeroconf_on" = "osx"; then
 368         AC_CHECK_HEADERS([DNSServiceDiscovery/DNSServiceDiscovery.h \
 369          mach/port.h],,AC_MSG_ERROR([required C header missing!]))
 370         AC_DEFINE(ZEROCONF, 1)
 371 fi
 372 if test "$x_zeroconf_on" = "howl"; then
 373         for dir in /usr/local/include /usr/local/include/howl* \
 374          /usr/include /usr/include/howl* \
 375          /usr/local/include/avahi* /usr/include/avahi*; do
 376                 test -d "$dir" || continue
 377                 AC_MSG_CHECKING([for Howl headers in $dir])
 378                 if test -f "$dir/rendezvous/rendezvous.h"; then
 379                         if test "$dir" != "/usr/local/include" -a \
 380                          "$dir" != "/usr/include"; then
 381                                 CFLAGS="-I$dir $CFLAGS"
 382                                 CPPFLAGS="-I$dir $CPPFLAGS"
 383                         fi
 384                         AC_MSG_RESULT(yes)
 385                         break
 386                 else
 387                         AC_MSG_RESULT(no)
 388                 fi
 389         done
 390         AC_CHECK_HEADERS([rendezvous/rendezvous.h],, \
 391          AC_MSG_ERROR([required C header missing!]))
 392         AC_DEFINE(ZEROCONF, 1)
 393 fi
 394
 395 # do IDENT requests using libident?
 396
 397 x_identauth_on=no
 398 AC_ARG_WITH(ident,
 399         [  --with-ident            enable "IDENT" ("AUTH") protocol support],
 400         [       if test "$withval" != "no"; then
 401                         if test "$withval" != "yes"; then
 402                                 CFLAGS="-I$withval/include $CFLAGS"
 403                                 CPPFLAGS="-I$withval/include $CPPFLAGS"
 404                                 LDFLAGS="-L$withval/lib $LDFLAGS"
 405                         fi
 406                         AC_CHECK_LIB(ident, ident_id)
 407                         AC_CHECK_FUNCS(ident_id, x_identauth_on=yes,
 408                                 AC_MSG_ERROR([Can't enable IDENT support!])
 409                         )
 410                 fi
 411         ]
 412 )
 413 if test "$x_identauth_on" = "yes"; then
 414         AC_DEFINE(IDENTAUTH, 1)
 415         AC_CHECK_HEADERS(ident.h,,AC_MSG_ERROR([required C header missing!]))
 416 fi
 417
 418 # compile in IRC+ protocol support?
 419
 420 x_ircplus_on=yes
 421 AC_ARG_ENABLE(ircplus,
 422         [  --disable-ircplus       disable IRC+ protocol],
 423         if test "$enableval" = "no"; then x_ircplus_on=no; fi
 424 )
 425 if test "$x_ircplus_on" = "yes"; then
 426         AC_DEFINE(IRCPLUS, 1)
 427 fi
 428
 429 # compile in IRC "sniffer"?
 430
 431 x_sniffer_on=no; x_debug_on=no
 432 AC_ARG_ENABLE(sniffer,
 433         [  --enable-sniffer        enable IRC traffic sniffer (enables debug mode)],
 434         if test "$enableval" = "yes"; then
 435                 AC_DEFINE(SNIFFER, 1)
 436                 x_sniffer_on=yes; x_debug_on=yes
 437         fi
 438 )
 439
 440 # enable additional debugging code?
 441
 442 AC_ARG_ENABLE(debug,
 443         [  --enable-debug          show additional debug output],
 444         if test "$enableval" = "yes"; then x_debug_on=yes; fi
 445 )
 446 if test "$x_debug_on" = "yes"; then
 447         AC_DEFINE(DEBUG, 1)
 448         test "$GCC" = "yes" && CFLAGS="-pedantic $CFLAGS"
 449 fi
 450
 451 # enable "strict RFC rules"?
 452
 453 x_strict_rfc_on=no
 454 AC_ARG_ENABLE(strict-rfc,
 455         [  --enable-strict-rfc     strict RFC conformance -- may break clients!],
 456         if test "$enableval" = "yes"; then
 457                 AC_DEFINE(STRICT_RFC, 1)
 458                 x_strict_rfc_on=yes
 459         fi
 460 )
 461
 462 # -- Definitions --
 463
 464 AC_DEFINE_UNQUOTED(TARGET_CPU, "$target_cpu" )
 465 AC_DEFINE_UNQUOTED(TARGET_VENDOR, "$target_vendor" )
 466 AC_DEFINE_UNQUOTED(TARGET_OS, "$target_os" )
 467
 468 # Add additional CFLAGS, eventually specified on the command line, but after
 469 # running this configure script. Useful for "-Werror" for example.
 470 test -n "$CFLAGS_END" && CFLAGS="$CFLAGS $CFLAGS_END"
 471
 472 # -- Generate files --
 473
 474 AC_OUTPUT([ \
 475         Makefile \
 476         doc/Makefile \
 477         doc/src/Makefile \
 478         src/Makefile \
 479         src/portab/Makefile \
 480         src/tool/Makefile \
 481         src/ngircd/Makefile \
 482         src/testsuite/Makefile \
 483         man/Makefile \
 484         contrib/Makefile \
 485         contrib/Debian/Makefile \
 486         contrib/MacOSX/Makefile \
 487 ])
 488
 489 type dpkg >/dev/null 2>&1
 490 if test $? -eq 0; then
 491         # Generate debian/ link if the dpkg command exists
 492         # (read: if we are running on a debian compatible system)
 493         echo "creating Debian-specific links ..."
 494         test -f debian/rules || ln -s contrib/Debian debian
 495 fi
 496
 497 # -- Result --
 498
 499 echo
 500 echo "ngIRCd $PACKAGE_VERSION has been configured with the following options:"
 501 echo
 502
 503 # Someone please show me a better way :)  [borrowed by OpenSSH]
 504 B=`eval echo ${bindir}` ; B=`eval echo ${B}`
 505 S=`eval echo ${sbindir}` ; S=`eval echo ${S}`
 506 C=`eval echo ${sysconfdir}` ; C=`eval echo ${C}`
 507 M=`eval echo ${mandir}` ; M=`eval echo ${M}`
 508 D=`eval echo ${datadir}/doc/${PACKAGE}` ; D=`eval echo ${D}`
 509
 510 echo "             Target: ${target}"
 511 test "$target" != "$host" && echo "               Host: ${host}"
 512 echo "           Compiler: ${CC}"
 513 test -n "$CFLAGS"       && echo "     Compiler flags: ${CFLAGS}"
 514 test -n "$CPPFLAGS"     && echo " Preprocessor flags: ${CPPFLAGS}"
 515 test -n "$LDFLAGS"      && echo "       Linker flags: ${LDFLAGS}"
 516 test -n "$LIBS"         && echo "          Libraries: ${LIBS}"
 517 echo
 518 echo "    'ngircd' binary: $S"
 519 echo " Configuration file: $C"
 520 echo "       Manual pages: $M"
 521 echo "      Documentation: $D"
 522 echo
 523
 524 echo $ECHO_N "     Syslog support: $ECHO_C"
 525 test "$x_syslog_on" = "yes" \
 526         && echo $ECHO_N "yes   $ECHO_C" \
 527         || echo $ECHO_N "no    $ECHO_C"
 528 echo $ECHO_N "  Enable debug code: $ECHO_C"
 529 test "$x_debug_on" = "yes" \
 530         && echo "yes" \
 531         || echo "no"
 532
 533 echo $ECHO_N "   zlib compression: $ECHO_C"
 534 test "$x_zlib_on" = "yes" \
 535         && echo $ECHO_N "yes   $ECHO_C" \
 536         || echo $ECHO_N "no    $ECHO_C"
 537 echo $ECHO_N "        IRC sniffer: $ECHO_C"
 538 test "$x_sniffer_on" = "yes" \
 539         && echo "yes" \
 540         || echo "no"
 541
 542 echo $ECHO_N "   Use TCP Wrappers: $ECHO_C"
 543 test "$x_tcpwrap_on" = "yes" \
 544         && echo $ECHO_N "yes   $ECHO_C" \
 545         || echo $ECHO_N "no    $ECHO_C"
 546 echo $ECHO_N "    Strict RFC mode: $ECHO_C"
 547 test "$x_strict_rfc_on" = "yes" \
 548         && echo "yes" \
 549         || echo "no"
 550
 551 echo $ECHO_N "   Zeroconf support: $ECHO_C"
 552 case "$x_zeroconf_on" in
 553         osx)
 554                 echo $ECHO_N "Apple $ECHO_C"
 555                 ;;
 556         howl)
 557                 echo $ECHO_N "Howl  $ECHO_C"
 558                 ;;
 559         *)
 560                 echo $ECHO_N "no    $ECHO_C"
 561                 ;;
 562 esac
 563 echo $ECHO_N "      IRC+ protocol: $ECHO_C"
 564 test "$x_ircplus_on" = "yes" \
 565         && echo "yes" \
 566         || echo "no"
 567
 568 echo $ECHO_N "      IDENT support: $ECHO_C"
 569 test "$x_identauth_on" = "yes" \
 570         && echo $ECHO_N "yes   $ECHO_C" \
 571         || echo $ECHO_N "no    $ECHO_C"
 572 echo $ECHO_N "        I/O backend: $ECHO_C"
 573         echo "\"$x_io_backend\""
 574
 575 echo
 576
 577 # -eof-