configure.ad

   1 #
   2 #  configure.ad
   3 #
   4 #  Author: Pekka Riikonen <priikone@silcnet.org>
   5 #
   6 #  Copyright (C) 2000 - 2005 Pekka Riikonen
   7 #
   8 #  This program is free software; you can redistribute it and/or modify
   9 #  it under the terms of the GNU General Public License as published by
  10 #  the Free Software Foundation; version 2 of the License.
  11 #
  12 #  This program is distributed in the hope that it will be useful,
  13 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 #  GNU General Public License for more details.
  16 #
  17
  18 AD_INIT
  19 AC_CANONICAL_SYSTEM
  20 AM_INIT_AUTOMAKE
  21 AC_PREREQ(2.52)
  22 AC_CONFIG_HEADERS(silcdefs.h)
  23
  24 AC_PROG_INSTALL
  25 AC_PROG_MAKE_SET
  26
  27 AC_PROG_LN_S
  28 AC_PROG_EGREP
  29 AC_SUBST(LN_S)
  30 AC_PATH_PROG(sedpath, sed)
  31
  32 #ifdef SILC_DIST_COMPILER
  33 # Put here any platform specific stuff
  34 #
  35 case "$target" in
  36   *-*-freebsd*)
  37     check_threads=true
  38     ;;
  39   *-*-*bsd*)
  40     check_threads=false
  41     ;;
  42   *)
  43     check_threads=true
  44     ;;
  45 esac
  46
  47 # Control compiler optimizations
  48 CFLAGS=`echo $CFLAGS | sed 's/-O[ 0123456789s]*//g'`
  49
  50 AC_PROG_CC
  51 AC_C_INLINE
  52 AC_C_CONST
  53
  54 __SILC_HAVE_PTHREAD=""
  55 __SILC_HAVE_SIM=""
  56 __SILC_ENABLE_DEBUG=""
  57
  58 AC_PROG_RANLIB
  59 AC_DISABLE_SHARED
  60 AC_PROG_LIBTOOL
  61
  62 # Header checking
  63 #
  64 AC_HEADER_STDC
  65 AC_HEADER_TIME
  66 AC_HEADER_STAT
  67
  68 # More header checking
  69 #
  70 AC_CHECK_HEADERS(unistd.h string.h getopt.h errno.h fcntl.h assert.h)
  71 AC_CHECK_HEADERS(sys/types.h sys/stat.h sys/time.h stddef.h)
  72 AC_CHECK_HEADERS(netinet/in.h netinet/tcp.h xti.h netdb.h sys/resource.h)
  73 AC_CHECK_HEADERS(pwd.h grp.h termcap.h paths.h)
  74 AC_CHECK_HEADERS(ncurses.h signal.h ctype.h utime.h)
  75 AC_CHECK_HEADERS(arpa/inet.h sys/mman.h limits.h termios.h locale.h langinfo.h)
  76
  77 # Data type checking
  78 #
  79 AC_TYPE_SIGNAL
  80 AC_TYPE_SIZE_T
  81 AC_TYPE_MODE_T
  82 AC_TYPE_UID_T
  83 AC_TYPE_PID_T
  84
  85 AC_CHECK_SIZEOF(long long, 0)
  86 AC_SUBST(SILC_SIZEOF_LONG_LONG, $ac_cv_sizeof_long_long)
  87 AC_CHECK_SIZEOF(long, 0)
  88 AC_SUBST(SILC_SIZEOF_LONG, $ac_cv_sizeof_long)
  89 AC_CHECK_SIZEOF(int, 0)
  90 AC_SUBST(SILC_SIZEOF_INT, $ac_cv_sizeof_int)
  91 AC_CHECK_SIZEOF(short, 0)
  92 AC_SUBST(SILC_SIZEOF_SHORT, $ac_cv_sizeof_short)
  93 AC_CHECK_SIZEOF(char, 0)
  94 AC_SUBST(SILC_SIZEOF_CHAR, $ac_cv_sizeof_char)
  95 AC_CHECK_SIZEOF(void *, 0)
  96 AC_SUBST(SILC_SIZEOF_VOID_P, $ac_cv_sizeof_void_p)
  97
  98 # Function and library checking
  99 #
 100 AC_CHECK_FUNC(gethostbyname, [],
 101   [
 102     AC_CHECK_LIB(nsl, gethostbyname, LIBS="$LIBS -lnsl")
 103     AC_CHECK_FUNC(res_gethostbyname, [],
 104        AC_CHECK_LIB(resolv, res_gethostbyname, LIBS="$LIBS -lresolv")
 105     )
 106   ])
 107 AC_CHECK_FUNC(socket, [],
 108   AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket")
 109 )
 110 AC_CHECK_FUNCS(gethostname gethostbyaddr getservbyname getservbyport)
 111 AC_CHECK_FUNCS(select listen bind shutdown close connect setsockopt)
 112 AC_CHECK_FUNCS(time ctime utime gettimeofday getrusage)
 113 AC_CHECK_FUNCS(chmod fcntl stat fstat getenv putenv strerror)
 114 AC_CHECK_FUNCS(getpid getgid getsid getpgid getpgrp getuid)
 115 AC_CHECK_FUNCS(setgroups initgroups nl_langinfo)
 116 AC_CHECK_FUNCS(strchr strstr strcpy strncpy memcpy memset memmove)
 117
 118 #ifdef SILC_DIST_SIM
 119 # SIM support checking
 120 # XXX These needs to be changed as more supported platforms appear.
 121 # XXX This probably needs to be made platform dependant check.
 122 #
 123 sim_support=false
 124 AC_MSG_CHECKING(for SIM support)
 125 AC_MSG_RESULT()
 126 AC_CHECK_HEADERS(dlfcn.h,
 127   [
 128     AC_CHECK_LIB(dl, dlopen,
 129       [
 130         AC_DEFINE([SILC_SIM], [], [HAVE_SIM])
 131         sim_support=true
 132         LIBS="$LIBS -ldl"
 133       ],
 134       [
 135         AC_CHECK_LIB(c, dlopen,
 136           [
 137             AC_DEFINE([SILC_SIM], [], [HAVE_SIM])
 138             sim_support=true
 139           ])
 140       ])
 141    ])
 142
 143 AM_CONDITIONAL(SILC_SIM, test x$sim_support = xtrue)
 144 if test x$sim_support = xtrue; then
 145   AC_MSG_RESULT(Enabled SIM support.)
 146   __SILC_HAVE_SIM="#define __SILC_HAVE_SIM 1"
 147 else
 148   AC_MSG_RESULT(No SIM support found.)
 149 fi
 150 #endif SILC_DIST_SIM
 151
 152 # lib/contrib conditionals
 153 #
 154 AC_CHECK_HEADER(regex.h,
 155   [
 156     AC_DEFINE([HAVE_REGEX], [], [HAVE_REGEX])
 157     have_regex=1
 158   ], have_regex=0
 159 )
 160 AM_CONDITIONAL(HAVE_REGEX, test x$have_regex = x1)
 161
 162 AC_CHECK_FUNC(getopt_long,
 163   [
 164     AC_DEFINE([HAVE_GETOPT_LONG], [], [HAVE_GETOPT_LONG])
 165     have_getopt_long=1
 166   ], have_getopt_long=0
 167 )
 168
 169 AC_CHECK_FUNC(getopt,
 170   [
 171     AC_DEFINE([HAVE_GETOPT], [], [HAVE_GETOPT])
 172     have_getopt=1
 173   ], have_getopt=0
 174 )
 175
 176 ##
 177 ##  Enable/disable checking
 178 ##
 179
 180 # IPv6 support
 181 #
 182 AC_MSG_CHECKING(whether to enable IPv6 support)
 183 AC_ARG_ENABLE(ipv6,
 184   [  --enable-ipv6           enable IPv6 support],
 185   [
 186     case "${enableval}" in
 187       yes)
 188         want_ipv6=true
 189         check_ipv6=false
 190         summary_ipv6="yes"
 191         AC_DEFINE([HAVE_IPV6], [], [HAVE_IPV6])
 192         AC_MSG_RESULT(yes)
 193         ;;
 194       *)
 195         want_ipv6=false
 196         check_ipv6=false
 197         summary_ipv6="no"
 198         AC_MSG_RESULT(no)
 199         ;;
 200     esac
 201   ],
 202     check_ipv6=true
 203   )
 204
 205 if test x$check_ipv6 = xtrue; then
 206   summary_ipv6="no"
 207   AC_TRY_COMPILE(
 208     [
 209       #ifdef HAVE_SYS_TYPES_H
 210       #include <sys/types.h>
 211       #endif
 212       #ifdef HAVE_NETINET_TCP_H
 213       #include <netinet/tcp.h>
 214       #endif
 215       #ifdef HAVE_NETDB_H
 216       #include <netdb.h>
 217       #endif
 218       #include <sys/socket.h>
 219       #ifdef HAVE_NETINET_IN_H
 220       #include <netinet/in.h>
 221       #endif
 222     ],
 223     [
 224       struct sockaddr_in6 sin6;
 225       int family = AF_INET6;
 226     ],
 227     [
 228       AC_DEFINE([HAVE_IPV6], [], [HAVE_IPV6])
 229       AC_MSG_RESULT(yes)
 230       summary_ipv6="yes"
 231     ],
 232       AC_MSG_RESULT(no)
 233     )
 234 fi
 235
 236 # Debug checking
 237 #
 238 AC_MSG_CHECKING(whether to enable debugging)
 239 summary_debug="no"
 240 __SILC_ENABLE_DEBUG=""
 241 AC_ARG_ENABLE(debug,
 242   [  --enable-debug          enable debugging],
 243   [
 244     case "${enableval}" in
 245       yes)
 246         AC_MSG_RESULT(yes)
 247         AC_DEFINE([SILC_DEBUG], [], [enable-debug])
 248         summary_debug="yes"
 249         __SILC_ENABLE_DEBUG="#define __SILC_ENABLE_DEBUG 1"
 250         ;;
 251       *)
 252         AC_MSG_RESULT(no)
 253         ;;
 254     esac
 255   ],
 256   [
 257     AC_MSG_RESULT(no)
 258   ])
 259
 260 # Disable all assembler optimizations
 261 #
 262 AC_MSG_CHECKING(whether to enable assembler optimizations)
 263 want_asm=true
 264 AC_ARG_ENABLE(asm,
 265   [  --disable-asm           do not use assembler optimizations],
 266   [
 267     AC_MSG_RESULT(no)
 268     want_asm=false
 269   ],
 270   [
 271     AC_MSG_RESULT(yes)
 272     want_asm=true
 273   ])
 274
 275 ##
 276 ## Compiler and compiler flag checks
 277 ##
 278
 279 # Function to check if compiler flag works
 280 # Usage: SILC_ADD_CFLAGS(FLAGS, [ACTION-IF-FAILED])
 281 AC_DEFUN([SILC_ADD_CFLAGS],
 282 [ tmp_CFLAGS="$CFLAGS"
 283   CFLAGS="$CFLAGS $1"
 284   AC_MSG_CHECKING(whether $CC accepts $1 flag)
 285   AC_TRY_LINK([], [], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)
 286                                        CFLAGS="$tmp_CFLAGS"
 287                                        $2])
 288   unset tmp_CFLAGS
 289 ])
 290
 291 # Function to check if compiler flag works, destination specifiable
 292 # Usage: SILC_ADD_CC_FLAGS(VAR, FLAGS, [ACTION-IF-FAILED])
 293 AC_DEFUN([SILC_ADD_CC_FLAGS],
 294 [ tmp_CFLAGS="$1_CFLAGS"
 295   $1_CFLAGS="${$1_CFLAGS} $2"
 296   AC_MSG_CHECKING(whether $CC accepts $2 flag)
 297   AC_TRY_LINK([], [], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)
 298                                        $1_CFLAGS="$tmp_CFLAGS"
 299                                        $3])
 300   unset tmp_CFLAGS
 301 ])
 302
 303 if test "$GCC"; then
 304   # GCC specific options
 305   if test "x$summary_debug" = "xyes"; then
 306     SILC_ADD_CFLAGS(-g -O)
 307   else
 308     SILC_ADD_CFLAGS(-g -O2)
 309   fi
 310   SILC_ADD_CFLAGS(-Wall -finline-functions)
 311   SILC_ADD_CFLAGS(-Wno-pointer-sign)
 312 else
 313   # Other compilers
 314   case "$target" in
 315     alpha*-dec-osf*)
 316       SILC_ADD_CFLAGS(-g3 -O2, SILC_ADD_CFLAGS(-g3 -O, SILC_ADD_CFLAGS(-O)))
 317       ;;
 318     mips*-sgi-irix*)
 319       SILC_ADD_CFLAGS(-g3 -O2, SILC_ADD_CFLAGS(-g3 -O, SILC_ADD_CFLAGS(-O)))
 320       ;;
 321     *)
 322       SILC_ADD_CFLAGS(-g)
 323       SILC_ADD_CFLAGS(-O2, SILC_ADD_CFLAGS(-O))
 324       ;;
 325   esac
 326
 327   # Intel C++ Compiler needs -restrict
 328   if test "x$CC" = "xicc"; then
 329     SILC_ADD_CFLAGS(-restrict)
 330   fi
 331 fi
 332
 333 #
 334 # Workaround a bug in GCC 2.x which causes memory exhaustion
 335 # when compiling sha1 with optimizations on UltraSPARC.
 336 #
 337 FIX_SHA1='#'
 338 if test "$GCC" -a "$host_cpu" = "sparc64"; then
 339   AC_MSG_CHECKING(whether to enable GCC 2.x workaround for SHA1)
 340   AC_TRY_COMPILE(
 341     [
 342       #if defined(__sparc64__) && (__GNUC__ == 2)
 343       #else
 344       choke me
 345       #endif
 346     ],
 347     [],
 348     [
 349       FIX_SHA1=''
 350       AC_MSG_RESULT(yes)
 351     ],
 352       AC_MSG_RESULT(no)
 353     )
 354 fi
 355 AC_SUBST(FIX_SHA1)
 356 #endif SILC_DIST_COMPILER
 357
 358 ##
 359 ##  Installation
 360 ##
 361
 362 # Default installation destination
 363 #
 364 #ifdef SILC_DIST_AUTODIST
 365 AC_PREFIX_DEFAULT(/usr/local)
 366 #else !SILC_DIST_AUTODIST
 367 AC_PREFIX_DEFAULT(/usr/local/silc)
 368 #endif SILC_DIST_AUTODIST
 369 if test "x$prefix" != xNONE; then
 370   silc_prefix="$prefix"
 371 else
 372   silc_prefix="$ac_default_prefix"
 373 fi
 374
 375 #ifndef SILC_DIST_AUTODIST
 376 # etc directory
 377 #
 378 if test "x$sysconfdir" != 'x${prefix}/etc'; then
 379   ETCDIR="$sysconfdir"
 380 else
 381   ETCDIR="$silc_prefix/etc"
 382 fi
 383
 384 AC_ARG_WITH(etcdir,
 385   [[  --with-etcdir=DIR       directory for system files [/etc/silc]]],
 386   [
 387     case "$withval" in
 388       no|yes)
 389         ;;
 390       *)
 391         ETCDIR="$withval"
 392         ;;
 393     esac
 394   ])
 395 AC_SUBST(ETCDIR)
 396 AC_DEFINE_UNQUOTED([SILC_ETCDIR], "$ETCDIR", [SILC_ETCDIR])
 397
 398 # doc directory
 399 #
 400 DOCDIR="$silc_prefix/doc"
 401 AC_ARG_WITH(docdir,
 402   [[  --with-docdir=DIR       directory for SILC documentation [PREFIX/doc]]],
 403   [
 404     case "$withval" in
 405       no|yes)
 406         ;;
 407       *)
 408         DOCDIR="$withval"
 409         ;;
 410     esac
 411   ])
 412 AC_SUBST(DOCDIR)
 413 AC_DEFINE_UNQUOTED([SILC_DOCDIR], "$DOCDIR", [SILC_DOCDIR])
 414 #endif SILC_DIST_AUTODIST
 415
 416 #ifdef SILC_DIST_COMPILER
 417 ##
 418 ##  With/without checkings
 419 ##
 420
 421 #
 422 # SILC library checking
 423 compile_libs=true
 424 LIBSUBDIR=lib
 425
 426 #ifndef SILC_DIST_TOOLKIT
 427 AC_ARG_WITH(silc-includes,
 428   [  --with-silc-includes=DIR SILC Toolkit includes [search in DIR]],
 429   [ac_silc_includes="$withval"], [ac_silc_includes="no"])
 430 AC_ARG_WITH(silc-libs,
 431   [  --with-silc-libs=DIR     SILC Toolkit libraries [search in DIR]],
 432   [ac_silc_libs="$withval"], [ac_silc_libs="no"])
 433
 434 if test -n "$with_silc_includes" || test -n "$with_silc_libs"; then
 435
 436   # Manually provided libs
 437   if test "$ac_silc_includes" != "no"; then
 438     compile_libs=false
 439     SILC_LIB_INCLUDES="-I$ac_silc_includes"
 440     LIBSUBDIR=
 441   fi
 442   if test "$ac_silc_libs" != "no"; then
 443     compile_libs=false
 444     LIBSUBDIR=
 445     LIBS="$LIBS -L$ac_silc_libs"
 446   fi
 447
 448   # Check libs to link against
 449   f=`$EGREP __SILC_HAVE_PTHREAD $ac_silc_includes/silcincludes.h`
 450   if test -n "$f"; then
 451     LIBS="$LIBS -lpthread"
 452     check_threads=false
 453     has_threads=true
 454   fi
 455   f=`$EGREP __SILC_HAVE_SIM $ac_silc_includes/silcincludes.h`
 456   if test -n "$f"; then
 457     LIBS="$LIBS -ldl"
 458   fi
 459
 460 else
 461   # pkg-config check
 462   PKG_CHECK_MODULES(SILC, silc, compile_libs=false, compile_libs=true)
 463 #ifdef SILC_DIST_CLIENTLIB
 464   PKG_CHECK_MODULES(SILCCLIENT, silcclient, compile_libs=false, compile_libs=true)
 465 #endif SILC_DIST_CLIENTLIB
 466
 467   if test x$compile_libs = xfalse; then
 468     LIBSUBDIR=
 469     LIBS="$LIBS $SILC_LIBS"
 470     CFLAGS="$CFLAGS $SILC_CFLAGS"
 471 #ifdef SILC_DIST_CLIENTLIB
 472     LIBS="$LIBS $SILCCLIENT_LIBS"
 473     CFLAGS="$CFLAGS $SILCCLIENT_CFLAGS"
 474 #endif SILC_DIST_CLIENTLIB
 475   fi
 476 fi
 477 #endif SILC_DIST_TOOLKIT
 478
 479 AC_SUBST(LIBSUBDIR)
 480
 481 # SOCKS4 support checking
 482 #
 483 SAVE_LIBS="$LIBS"
 484 SAVE_CFLAGS="$CFLAGS"
 485 SAVE_LDFLAGS="$LDFLAGS"
 486 AC_MSG_CHECKING(whether to support SOCKS4)
 487 AC_ARG_WITH(socks4,
 488   [[  --with-socks4[=DIR]     with SOCKS4 support [search in DIR/lib and DIR/include]]],
 489   [
 490     case "$withval" in
 491       no)
 492         AC_MSG_RESULT(no)
 493         ;;
 494       *)
 495         AC_MSG_RESULT(yes)
 496         socks=4
 497
 498         if test -d "$withval/include"; then
 499           CFLAGS="$CFLAGS -I$withval/include"
 500         fi
 501         if test -d "$withval/lib"; then
 502           LDFLAGS="$LDFLAGS -L$withval/lib"
 503         fi
 504
 505         LIBS="-lsocks $LIBS"
 506         ;;
 507     esac
 508
 509     AC_TRY_LINK([],
 510       [
 511         Rconnect();
 512       ], [],
 513       [
 514         AC_MSG_ERROR(Could not find SOCKS4 library.)
 515         LIBS="$SAVE_LIBS"
 516         CFLAGS="$SAVE_CFLAGS"
 517         LDFLAGS="$SAVE_LDFLAGS"
 518       ])
 519   ],
 520     AC_MSG_RESULT(no)
 521   )
 522
 523 # SOCKS5 support checking
 524 #
 525 SAVE_LIBS="$LIBS"
 526 SAVE_CFLAGS="$CFLAGS"
 527 SAVE_LDFLAGS="$LDFLAGS"
 528 AC_MSG_CHECKING(whether to support SOCKS5)
 529 AC_ARG_WITH(socks5,
 530   [[  --with-socks5[=DIR]     with SOCKS5 support [search in DIR/lib and DIR/include]]],
 531   [
 532     case "$withval" in
 533       no)
 534         AC_MSG_RESULT(no)
 535         ;;
 536       *)
 537         AC_MSG_RESULT(yes)
 538         socks=5
 539
 540         if test -d "$withval/include"; then
 541           CFLAGS="$CFLAGS -I$withval/include"
 542         fi
 543         if test -d "$withval/lib"; then
 544           LDFLAGS="$LDFLAGS -L$withval/lib"
 545         fi
 546
 547         LIBS="-lsocks5 $LIBS"
 548         ;;
 549     esac
 550
 551     AC_TRY_LINK([],
 552       [
 553         SOCKSconnect();
 554       ], [],
 555       [
 556         AC_MSG_ERROR(Could not find SOCKS5 library.)
 557         LIBS="$SAVE_LIBS"
 558         CFLAGS="$SAVE_CFLAGS"
 559         LDFLAGS="$SAVE_LDFLAGS"
 560       ])
 561   ],
 562     AC_MSG_RESULT(no)
 563   )
 564
 565 if test "x$socks" = "x4"; then
 566   AC_DEFINE([SOCKS], [], [Socks])
 567   CFLAGS="$CFLAGS -Dconnect=Rconnect -Dgetsockname=Rgetsockname -Dbind=Rbind -Daccept=Raccept -Dlisten=Rlisten -Dselect=Rselect"
 568 fi
 569
 570 if test "x$socks" = "x5"; then
 571   AC_DEFINE([SOCKS], [], [Socks])
 572   AC_DEFINE([SOCKS5], [], [Socks5])
 573   AC_DEFINE([Rconnect], [SOCKSconnect], [Socks])
 574   AC_DEFINE([Rgetsockname], [SOCKSgetsockname], [Socks])
 575   AC_DEFINE([Rgetpeername], [SOCKSgetpeername], [Socks])
 576   AC_DEFINE([Rbind], [SOCKSbind], [Socks])
 577   AC_DEFINE([Raccept], [SOCKSaccept], [Socks])
 578   AC_DEFINE([Rlisten], [SOCKSlisten], [Socks])
 579   AC_DEFINE([Rselect], [SOCKSselect], [Socks])
 580   AC_DEFINE([Rrecvfrom], [SOCKSrecvfrom], [Socks])
 581   AC_DEFINE([Rsendto], [SOCKSsendto], [Socks])
 582   AC_DEFINE([Rrecv], [SOCKSrecv], [Socks])
 583   AC_DEFINE([Rsend], [SOCKSsend], [Socks])
 584   AC_DEFINE([Rread], [SOCKSread], [Socks])
 585   AC_DEFINE([Rwrite], [SOCKSwrite], [Socks])
 586   AC_DEFINE([Rrresvport], [SOCKSrresvport], [Socks])
 587   AC_DEFINE([Rshutdown], [SOCKSshutdown], [Socks])
 588   AC_DEFINE([Rlisten], [SOCKSlisten], [Socks])
 589   AC_DEFINE([Rclose], [SOCKSclose], [Socks])
 590   AC_DEFINE([Rdup], [SOCKSdup], [Socks])
 591   AC_DEFINE([Rdup2], [SOCKSdup2], [Socks])
 592   AC_DEFINE([Rfclose], [SOCKSfclose], [Socks])
 593   AC_DEFINE([Rgethostbyname], [SOCKSgethostbyname], [Socks])
 594 fi
 595
 596 #ifdef SILC_DIST_MATH
 597 # MP library checking. First check whether user wants to use GMP and use
 598 # it if found. If not or not defined then compile the default library in the
 599 # source tree.
 600 #
 601 mp_gmp=false
 602 SAVE_LIBS="$LIBS"
 603 SAVE_CFLAGS="$CFLAGS"
 604 SAVE_LDFLAGS="$LDFLAGS"
 605 AC_MSG_CHECKING(whether to search for GMP)
 606 AC_ARG_WITH(gmp,
 607   [[  --with-gmp[=DIR]        use GMP instead of SILC Math [search in DIR/lib and DIR/include]]],
 608   [
 609     case "$withval" in
 610       no)
 611         AC_MSG_RESULT(no)
 612         ;;
 613       *)
 614         AC_MSG_RESULT(yes)
 615
 616         if test -d "$withval/include"; then
 617           CFLAGS="$CFLAGS -I$withval/include"
 618         fi
 619         if test -d "$withval/lib"; then
 620           LDFLAGS="$LDFLAGS -L$withval/lib"
 621         fi
 622
 623         LIBS="-lgmp $LIBS"
 624         ;;
 625     esac
 626
 627     AC_CHECK_LIB(gmp, __gmpz_init,
 628       [
 629         mp_gmp=true
 630         AC_DEFINE([SILC_MP_GMP], [], [GMP])
 631         AC_MSG_RESULT(Using GMP as a MP library.)
 632       ],
 633       [
 634         LIBS="$SAVE_LIBS"
 635         CFLAGS="$SAVE_CFLAGS"
 636         LDFLAGS="$SAVE_LDFLAGS"
 637       ])
 638   ],
 639     AC_MSG_RESULT(no)
 640   )
 641
 642 AM_CONDITIONAL(SILC_MP_GMP, test x$mp_gmp = xtrue)
 643 AM_CONDITIONAL(SILC_MP_SILCMATH, test x$mp_gmp = xfalse)
 644 if test x$mp_gmp = xfalse; then
 645   AC_DEFINE([SILC_MP_SILCMAP], [], [SILCMATH])
 646   AC_MSG_RESULT(Using SILC Math as a MP library.)
 647 fi
 648 #endif SILC_DIST_MATH
 649
 650 # iconv support
 651 #
 652 check_iconv=true
 653 has_iconv=false
 654 SAVE_LIBS="$LIBS"
 655 SAVE_CFLAGS="$CFLAGS"
 656 SAVE_LDFLAGS="$LDFLAGS"
 657 SAVE_CPPFLAGS="$CPPFLAGS"
 658 AC_MSG_CHECKING(whether to implicit search for libiconv)
 659 AC_ARG_WITH(iconv,
 660   [[  --with-iconv[=DIR]      use libiconv [search in DIR/include and DIR/lib]]],
 661   [
 662     case "${withval}" in
 663       no)
 664         AC_MSG_RESULT(no)
 665         AC_CHECK_HEADERS(iconv.h,
 666           [
 667             AC_CHECK_FUNC(iconv, has_iconv=true)
 668           ])
 669         check_iconv=false
 670         ;;
 671       *)
 672         AC_MSG_RESULT(yes)
 673         if test -d $withval/include; then
 674           CPPFLAGS="$CPPFLAGS -I$withval/include"
 675           CFLAGS="$CFLAGS -I$withval/include"
 676         fi
 677         if test -d $withval/lib; then
 678           LDFLAGS="$LDFLAGS -L$withval/lib"
 679         fi
 680         ;;
 681     esac
 682   ],
 683   [
 684     AC_MSG_RESULT(no)
 685     AC_CHECK_HEADERS(iconv.h,
 686       [
 687         AC_CHECK_FUNCS(iconv,
 688           [
 689             has_iconv=true
 690             check_iconv=false
 691           ])
 692       ])
 693   ])
 694
 695 if test x$check_iconv = xtrue; then
 696   AC_MSG_RESULT(Searching for iconv...)
 697
 698   # XXX
 699   unset ac_cv_header__iconv_h_ ac_cv_header_iconv_h || true
 700
 701   AC_CHECK_HEADERS(iconv.h,
 702     [
 703       LIBS="$LIBS -liconv"
 704       AC_MSG_CHECKING(for iconv in -liconv)
 705       AC_TRY_LINK(
 706         [
 707           #include <stdlib.h>
 708           #include <iconv.h>
 709         ],
 710         [
 711           iconv_t cd = iconv_open("", "");
 712           iconv(cd, NULL, NULL, NULL, NULL);
 713           iconv_close(cd);
 714         ],
 715         [
 716           echo "yes"
 717           AC_DEFINE([HAVE_ICONV], [], [Define if you have the iconv() function.])
 718           has_iconv=true
 719           check_iconv=false
 720         ],
 721         [
 722           echo "no"
 723           LIBS="$SAVE_LIBS"
 724           CFLAGS="$SAVE_CFLAGS"
 725           LDFLAGS="$SAVE_LDFLAGS"
 726           CPPFLAGS="$SAVE_CPPFLAGS"
 727         ])
 728      ])
 729 fi
 730
 731 if test x$check_iconv = xtrue; then
 732   # search for iconv library..
 733   SAVE_LIBS="$LIBS"
 734   SAVE_CFLAGS="$CFLAGS"
 735   SAVE_LDFLAGS="$LDFLAGS"
 736   SAVE_CPPFLAGS="$CPPFLAGS"
 737
 738   for dir in `echo "/usr/local /usr/pkg /usr/contrib"`; do
 739     if test x$has_iconv = xfalse; then
 740       AC_MSG_RESULT(searching in $dir...)
 741
 742       if test -d $dir/include; then
 743         CPPFLAGS="$CPPFLAGS -I$dir/include"
 744         CFLAGS="$CFLAGS -I$dir/include"
 745       fi
 746       if test -d $dir/lib; then
 747         LDFLAGS="$LDFLAGS -L$dir/lib"
 748       fi
 749
 750       # XXX
 751       unset ac_cv_header__iconv_h_ ac_cv_header_iconv_h || true
 752
 753       AC_CHECK_HEADERS(iconv.h,
 754         [
 755           LIBS="$LIBS -liconv"
 756           AC_MSG_CHECKING(for iconv in -liconv)
 757           AC_TRY_LINK(
 758             [
 759               #include <stdlib.h>
 760               #include <iconv.h>
 761             ],
 762             [
 763               iconv_t cd = iconv_open("", "");
 764               iconv(cd, NULL, NULL, NULL, NULL);
 765               iconv_close(cd);
 766             ],
 767             [
 768               echo "yes"
 769               has_iconv=true
 770               AC_DEFINE([HAVE_ICONV], [], [Define if you have the iconv() function.])
 771             ],
 772             [
 773               echo "no"
 774               has_iconv=false
 775
 776               LIBS="$SAVE_LIBS"
 777               CFLAGS="$SAVE_CFLAGS"
 778               LDFLAGS="$SAVE_LDFLAGS"
 779               CPPFLAGS="$SAVE_CPPFLAGS"
 780             ])
 781          ],
 782          [
 783            CFLAGS="$SAVE_CFLAGS"
 784            LDFLAGS="$SAVE_LDFLAGS"
 785            CPPFLAGS="$SAVE_CPPFLAGS"
 786          ])
 787       fi
 788     done
 789 fi
 790
 791 if test x$has_iconv = xtrue; then
 792   # (1) Some implementations of iconv won't convert from UTF-8 to UTF-8.
 793   # (2) In glibc-2.1.2 and earlier there is a bug that messes up ob and
 794   #     obl when args 2 and 3 are 0 (fixed in glibc-2.1.3).
 795   #
 796   AC_CACHE_CHECK([whether this iconv is good enough], ac_iconv_good,
 797     AC_TRY_RUN(
 798       [
 799         #include <iconv.h>
 800         int main() {
 801           iconv_t cd;
 802         changequote(, )dnl
 803           char buf[4];
 804         changequote([, ])dnl
 805           char *ob;
 806           size_t obl;
 807           ob = buf, obl = sizeof(buf);
 808           return ((cd = iconv_open("UTF-8", "UTF-8")) != (iconv_t)(-1) &&
 809                  (iconv(cd, 0, 0, &ob, &obl) ||
 810                  !(ob == buf && obl == sizeof(buf)) ||
 811                  iconv_close(cd)));
 812         }
 813       ],
 814       [
 815         ac_iconv_good=yes
 816       ],
 817       [
 818         ac_iconv_good=no
 819       ],
 820       [
 821         ac_iconv_good=yes
 822       ])
 823     )
 824
 825   if test x$ac_iconv_good = xno; then
 826     AC_MSG_RESULT(Try using libiconv instead.)
 827   fi
 828 fi
 829
 830 # POSIX threads support
 831 #
 832 AC_MSG_CHECKING(whether to search for POSIX threads)
 833 AC_ARG_WITH(pthreads,
 834   [[  --with-pthreads[=DIR]   use POSIX threads [search in DIR/include and DIR/lib]]],
 835   [
 836     case "${withval}" in
 837       no)
 838         check_threads=false
 839         ;;
 840       *)
 841         if test -d $withval/include; then
 842           CPPFLAGS="$CPPFLAGS -I$withval/include"
 843           CFLAGS="$CFLAGS -I$withval/include"
 844         fi
 845         if test -d $withval/lib; then
 846           LDFLAGS="$LDFLAGS -L$withval/lib"
 847         fi
 848
 849         check_threads=true
 850         ;;
 851     esac
 852   ])
 853
 854 if test x$check_threads = xtrue; then
 855   has_threads=false
 856   SAVE_LIBS="$LIBS"
 857   SAVE_CFLAGS="$CFLAGS"
 858   SAVE_LDFLAGS="$LDFLAGS"
 859   SAVE_CPPFLAGS="$CPPFLAGS"
 860
 861   AC_MSG_RESULT(yes)
 862   AC_CHECK_HEADERS(pthread.h,
 863     [
 864       LIBS="$LIBS -lpthread"
 865       AC_CHECK_LIB(pthread, pthread_attr_init, has_threads=true,
 866         [
 867           # FreeBSD
 868           case "${target}" in
 869             *-*-freebsd*)
 870               LIBS="$SAVE_LIBS -pthread"
 871               AC_CHECK_LIB(c_r, pthread_attr_init, has_threads=true, LIBS="$SAVE_LIBS")
 872               ;;
 873             *)
 874               LIBS="$SAVE_LIBS"
 875               ;;
 876           esac
 877         ])
 878     ],
 879     [
 880       # search for pthread library..
 881       for dir in `echo "/usr/local /usr/pkg /usr/contrib /usr/pkg/pthreads /usr/local/pthreads"`; do
 882         if test x$has_threads = xfalse; then
 883           AC_MSG_RESULT(searching in $dir...)
 884
 885           if test -d $dir/include; then
 886             CPPFLAGS="$CPPFLAGS -I$dir/include"
 887             CFLAGS="$CFLAGS -I$dir/include"
 888           fi
 889           if test -d $dir/lib; then
 890             LDFLAGS="$LDFLAGS -L$dir/lib"
 891           fi
 892
 893           # XXX
 894           unset ac_cv_header__pthread_h_ ac_cv_header_pthread_h || true
 895
 896           AC_CHECK_HEADERS(pthread.h,
 897             [
 898               LIBS="$LIBS -lpthread"
 899               AC_CHECK_LIB(pthread, pthread_attr_init, has_threads=true,
 900                 [
 901                   has_threads=false
 902
 903                   LIBS="$SAVE_LIBS"
 904                   CFLAGS="$SAVE_CFLAGS"
 905                   LDFLAGS="$SAVE_LDFLAGS"
 906                   CPPFLAGS="$SAVE_CPPFLAGS"
 907                 ])
 908             ],
 909             [
 910               CFLAGS="$SAVE_CFLAGS"
 911               LDFLAGS="$SAVE_LDFLAGS"
 912               CPPFLAGS="$SAVE_CPPFLAGS"
 913             ])
 914         fi
 915       done
 916     ])
 917 else
 918   AC_MSG_RESULT(no)
 919   has_threads=false
 920 fi
 921
 922 __SILC_HAVE_PTHREAD=""
 923 AM_CONDITIONAL(SILC_THREADS, test x$has_threads = xtrue)
 924 if test x$has_threads = xtrue; then
 925   CFLAGS="$CFLAGS -D_REENTRANT"
 926
 927   # XXX possibly incomplete
 928   case "${target}" in
 929     *-*-aix*)
 930       CFLAGS="$CFLAGS -D_THREAD_SAFE"
 931       if test x"$GCC" = xyes; then
 932         CFLAGS="$CFLAGS -mthreads"
 933       fi
 934       ;;
 935     *-*-freebsd*)
 936       CFLAGS="$CFLAGS -D_THREAD_SAFE"
 937       ;;
 938     *-*-sysv5uw7*)  # UnixWare 7
 939       if test "$GCC" != "yes"; then
 940         CFLAGS="$CFLAGS -Kthread"
 941       else
 942         CFLAGS="$CFLAGS -pthread"
 943       fi
 944       ;;
 945     *-dg-dgux*)  # DG/UX
 946       CFLAGS="$CFLAGS -D_POSIX4A_DRAFT10_SOURCE"
 947       ;;
 948    esac
 949
 950   AC_CHECK_FUNC(pthread_create)
 951   AC_DEFINE([SILC_HAVE_PTHREAD], [], [HAVE_PTHREAD])
 952   AC_DEFINE([SILC_THREADS], [], [HAVE_THREAD])
 953   __SILC_HAVE_PTHREAD="#define __SILC_HAVE_PTHREAD 1"
 954 fi
 955
 956 # Native WIN32 compilation under cygwin
 957 #
 958 AC_MSG_CHECKING(whether to compile native WIN32 code)
 959 AC_ARG_WITH(win32,
 960   [  --with-win32            compile native WIN32 (MinGW) code (-mno-cygwin)],
 961   [
 962     AC_MSG_RESULT(yes)
 963     AC_DEFINE([SILC_WIN32], [], [SILC_WIN32])
 964     win32_support=true
 965     CFLAGS="-mno-cygwin $CFLAGS"
 966     LIBS="$LIBS -lwsock32"
 967   ],
 968   [
 969     AC_MSG_RESULT(no)
 970   ])
 971 AM_CONDITIONAL(SILC_WIN32, test x$win32_support = xtrue)
 972
 973 # Native EPOC support (disabled by default)
 974 #
 975 AM_CONDITIONAL(SILC_EPOC, test xfalse = xtrue)
 976
 977 # Native BeOS support (disabled by default)
 978 #
 979 AM_CONDITIONAL(SILC_BEOS, test xfalse = xtrue)
 980
 981 # Native OS2 support (disabled by default)
 982 #
 983 AM_CONDITIONAL(SILC_OS2, test xfalse = xtrue)
 984
 985 #ifdef SILC_DIST_TOOLKIT
 986 # --with-irssi
 987 #
 988 without_irssi=true
 989 AC_MSG_CHECKING(whether to compile Irssi SILC Client)
 990 AC_ARG_WITH(irssi,
 991   [  --with-irssi            compile with Irssi SILC Client],
 992   [
 993     AC_MSG_RESULT(yes)
 994     without_irssi=false
 995   ],
 996   [
 997     AC_MSG_RESULT(no)
 998     without_irssi=true
 999   ])
1000
1001 # --with-silcd
1002 #
1003 without_silcd=true
1004 AC_MSG_CHECKING(whether to compile SILC Server)
1005 AC_ARG_WITH(silcd,
1006   [  --with-silcd            compile with SILC Server],
1007   [
1008     AC_MSG_RESULT(yes)
1009     without_silcd=false
1010   ],
1011   [
1012     AC_MSG_RESULT(no)
1013     without_silcd=true
1014   ])
1015 #endif SILC_DIST_TOOLKIT
1016
1017 libtoolfix=true
1018 AC_MSG_CHECKING(whether to do libtoolfix)
1019 AC_ARG_WITH(libtoolfix,
1020   [  --without-libtoolfix    Do not fix libtool, for package builders],
1021   [
1022     AC_MSG_RESULT(no)
1023     libtoolfix=false
1024   ],
1025   [
1026     AC_MSG_RESULT(yes)
1027   ])
1028
1029 AC_SUBST(ETCDIR)
1030 AC_DEFINE_UNQUOTED([SILC_ETCDIR], "$ETCDIR", [SILC_ETCDIR])
1031 #endif SILC_DIST_COMPILER
1032
1033 ##
1034 ##  Misc
1035 ##
1036
1037 # Make enable-shared aware
1038 AM_CONDITIONAL(SILC_ENABLE_SHARED, test "$enable_shared" = yes)
1039
1040 SILC_TOP_SRCDIR=`pwd`
1041
1042 # Included configure scripts
1043 AD_INCLUDE_CONFIGURE
1044
1045 #ifdef SILC_DIST_COMPILER
1046 #
1047 # Substitutions
1048 #
1049 AC_SUBST(SILC_TOP_SRCDIR)
1050 AC_SUBST(LIBS)
1051 AC_SUBST(SILC_LIB_INCLUDES)
1052 AC_SUBST(__SILC_HAVE_PTHREAD)
1053 AC_SUBST(__SILC_HAVE_SIM)
1054 AC_SUBST(__SILC_ENABLE_DEBUG)
1055
1056 #
1057 # Fix the libtool to support run-time configuration.  This allows us
1058 # to in run-time specify when to compile shared/static libraries without
1059 # need to reconfigure the entire libtool.
1060 #
1061 if test x$libtoolfix = xtrue; then
1062   ./libtoolfix $SILC_TOP_SRCDIR/ltmain.sh
1063 fi
1064 AM_CONDITIONAL(SILC_LIBTOOLFIX, test x$libtoolfix = xtrue)
1065
1066 INCLUDE_DEFINES_INT="include \$(top_srcdir)/Makefile.defines_int"
1067 AC_SUBST(INCLUDE_DEFINES_INT)
1068
1069 #endif SILC_DIST_COMPILER
1070
1071 #
1072 # Makefile outputs
1073 #
1074 AC_CONFIG_FILES(
1075 Makefile
1076 #ifdef SILC_DIST_DOC
1077 doc/Makefile
1078 #endif SILC_DIST_DOC
1079 #ifdef SILC_DIST_COMPILER
1080 Makefile.defines
1081 Makefile.defines_int
1082 includes/Makefile
1083 includes/silcversion.h
1084 includes/silcincludes.h
1085 #endif SILC_DIST_COMPILER
1086 #ifdef SILC_DIST_APPS
1087 apps/Makefile
1088 #endif SILC_DIST_APPS
1089 )
1090
1091 #ifdef SILC_DIST_TOOLKIT
1092 AC_CONFIG_FILES(
1093 win32/Makefile
1094 win32/libsilc/Makefile
1095 win32/libsilcclient/Makefile
1096 tutorial/Makefile
1097 tutorial/Makefile.defines
1098 tutorial/Makefile.defines_int
1099 )
1100 #endif SILC_DIST_TOOLKIT
1101
1102 AC_OUTPUT
1103
1104 #ifdef SILC_DIST_COMPILER
1105 s_bindir=`eval echo $bindir`;s_bindir=`eval echo $s_bindir`
1106 s_sbindir=`eval echo $sbindir`;s_sbindir=`eval echo $s_sbindir`
1107 s_mandir=`eval echo $mandir`;s_mandir=`eval echo $s_mandir`
1108 s_includedir=`eval echo $includedir`;s_includedir=`eval echo $s_includedir`
1109
1110 echo ""
1111 echo "$PACKAGE Configuration Summary:"
1112 echo "---------------------------"
1113 echo " Target host ...................: $target"
1114 echo " Compiler ......................: $CC"
1115 echo " CFLAGS ........................: $CFLAGS"
1116 echo " LDFLAGS .......................: $LDFLAGS"
1117 echo " LIBS ..........................: $LIBS"
1118 echo ""
1119 echo " Installation prefix ...........: $prefix"
1120 echo " bin directory .................: $s_bindir"
1121 echo " sbin directory ................: $s_sbindir"
1122 echo " etc directory .................: $ETCDIR"
1123 echo " man directory .................: $s_mandir"
1124 echo " doc directory .................: $DOCDIR"
1125 #ifdef SILC_DIST_CLIENT
1126 echo " help directory ................: $HELPDIR"
1127 #endif SILC_DIST_CLIENT
1128 #ifdef SILC_DIST_SERVER
1129 echo " logs directory ................: $LOGSDIR"
1130 #endif SILC_DIST_SERVER
1131 #ifdef SILC_DIST_SIM
1132 echo " SIM directory .................: $MODULESDIR"
1133 #endif SILC_DIST_SIM
1134 #ifdef SILC_DIST_INCLUDES
1135 echo " include directory .............: $s_includedir"
1136 #endif SILC_DIST_INCLUDES
1137 echo ""
1138
1139 #ifdef SILC_DIST_TOOLKIT
1140 if test x$without_irssi = xtrue; then
1141   irssi="no"
1142 fi
1143 if test x$without_silcd = xtrue; then
1144   silcd="no"
1145 fi
1146 #endif SILC_DIST_TOOLKIT
1147
1148 #ifdef SILC_DIST_CLIENT
1149 echo " Compile SILC Client ...........: $irssi"
1150 #endif SILC_DIST_CLIENT
1151
1152 #ifdef SILC_DIST_SERVER
1153 echo " Compile SILC Server ...........: $silcd"
1154 if test x$without_silcd = xfalse; then
1155 echo " Server configuration file .....: $summary_silcd_configfile"
1156 echo " Server PID file ...............: $PIDFILE"
1157 fi
1158 #endif SILC_DIST_SERVER
1159
1160 #ifdef SILC_DIST_SIM
1161 if test x$sim_support = xfalse; then
1162   sim_support="no"
1163 else
1164   sim_support="yes"
1165 fi
1166 echo " SIM support ...................: $sim_support"
1167 #endif SILC_DIST_SIM
1168
1169 echo " IPv6 support ..................: $summary_ipv6"
1170
1171 if test x$has_iconv = xfalse; then
1172   iconv_support="no"
1173 else
1174   iconv_support="yes"
1175 fi
1176 echo " Iconv support .................: $iconv_support"
1177
1178 if test x$want_asm = xfalse; then
1179   summary_asm="no"
1180 else
1181   summary_asm="yes"
1182 fi
1183 echo " Assembler optimizations .......: $summary_asm"
1184
1185 #ifdef SILC_DIST_MATH
1186 if test x$mp_gmp = xtrue; then
1187   echo " Arithmetic library ............: GMP"
1188 fi
1189 #endif SILC_DIST_MATH
1190
1191 threads="no"
1192 if test x$has_threads = xtrue; then
1193   threads="yes"
1194 fi
1195 echo " Multi-threads support .........: $threads"
1196 echo " Debugging enabled .............: $summary_debug"
1197 echo ""
1198 echo "Compile the sources with 'make' or 'gmake' command."
1199 #endif SILC_DIST_COMPILER