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 #ifndef SILC_DIST_TOOLKIT
  60 AC_DISABLE_SHARED
  61 #endif SILC_DIST_TOOLKIT
  62 #ifdef SILC_DIST_INPLACE
  63 AC_DISABLE_SHARED
  64 #endif SILC_DIST_INPLACE
  65 AC_PROG_LIBTOOL
  66
  67 # Header checking
  68 #
  69 AC_HEADER_STDC
  70 AC_HEADER_TIME
  71 AC_HEADER_STAT
  72
  73 # More header checking
  74 #
  75 AC_CHECK_HEADERS(unistd.h string.h getopt.h errno.h fcntl.h assert.h)
  76 AC_CHECK_HEADERS(sys/types.h sys/stat.h sys/time.h stddef.h)
  77 AC_CHECK_HEADERS(netinet/in.h netinet/tcp.h xti.h netdb.h sys/resource.h)
  78 AC_CHECK_HEADERS(pwd.h grp.h termcap.h paths.h)
  79 AC_CHECK_HEADERS(ncurses.h signal.h ctype.h utime.h)
  80 AC_CHECK_HEADERS(arpa/inet.h sys/mman.h limits.h termios.h locale.h langinfo.h)
  81
  82 # Data type checking
  83 #
  84 AC_TYPE_SIGNAL
  85 AC_TYPE_SIZE_T
  86 AC_TYPE_MODE_T
  87 AC_TYPE_UID_T
  88 AC_TYPE_PID_T
  89
  90 AC_CHECK_SIZEOF(long long, 0)
  91 AC_SUBST(SILC_SIZEOF_LONG_LONG, $ac_cv_sizeof_long_long)
  92 AC_CHECK_SIZEOF(long, 0)
  93 AC_SUBST(SILC_SIZEOF_LONG, $ac_cv_sizeof_long)
  94 AC_CHECK_SIZEOF(int, 0)
  95 AC_SUBST(SILC_SIZEOF_INT, $ac_cv_sizeof_int)
  96 AC_CHECK_SIZEOF(short, 0)
  97 AC_SUBST(SILC_SIZEOF_SHORT, $ac_cv_sizeof_short)
  98 AC_CHECK_SIZEOF(char, 0)
  99 AC_SUBST(SILC_SIZEOF_CHAR, $ac_cv_sizeof_char)
 100 AC_CHECK_SIZEOF(void *, 0)
 101 AC_SUBST(SILC_SIZEOF_VOID_P, $ac_cv_sizeof_void_p)
 102
 103 # Function and library checking
 104 #
 105 AC_CHECK_FUNC(gethostbyname, [],
 106   [
 107     AC_CHECK_LIB(nsl, gethostbyname, LIBS="$LIBS -lnsl")
 108     AC_CHECK_FUNC(res_gethostbyname, [],
 109        AC_CHECK_LIB(resolv, res_gethostbyname, LIBS="$LIBS -lresolv")
 110     )
 111   ])
 112 AC_CHECK_FUNC(socket, [],
 113   AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket")
 114 )
 115 AC_CHECK_FUNCS(gethostname gethostbyaddr getservbyname getservbyport)
 116 AC_CHECK_FUNCS(poll select listen bind shutdown close connect setsockopt)
 117 AC_CHECK_FUNCS(setrlimit time ctime utime gettimeofday getrusage)
 118 AC_CHECK_FUNCS(chmod fcntl stat fstat getenv putenv strerror)
 119 AC_CHECK_FUNCS(getpid getgid getsid getpgid getpgrp getuid)
 120 AC_CHECK_FUNCS(setgroups initgroups nl_langinfo)
 121 AC_CHECK_FUNCS(strchr strstr strcpy strncpy memcpy memset memmove)
 122
 123 #ifdef SILC_DIST_SIM
 124 # SIM support checking
 125 # XXX These needs to be changed as more supported platforms appear.
 126 # XXX This probably needs to be made platform dependant check.
 127 #
 128 sim_support=false
 129 AC_MSG_CHECKING(for SIM support)
 130 AC_MSG_RESULT()
 131 AC_CHECK_HEADERS(dlfcn.h,
 132   [
 133     AC_CHECK_LIB(dl, dlopen,
 134       [
 135         AC_DEFINE([SILC_SIM], [], [HAVE_SIM])
 136         sim_support=true
 137         LIBS="$LIBS -ldl"
 138       ],
 139       [
 140         AC_CHECK_LIB(c, dlopen,
 141           [
 142             AC_DEFINE([SILC_SIM], [], [HAVE_SIM])
 143             sim_support=true
 144           ])
 145       ])
 146    ])
 147
 148 AM_CONDITIONAL(SILC_SIM, test x$sim_support = xtrue)
 149 if test x$sim_support = xtrue; then
 150   AC_MSG_RESULT(Enabled SIM support.)
 151   __SILC_HAVE_SIM="#define __SILC_HAVE_SIM 1"
 152 else
 153   AC_MSG_RESULT(No SIM support found.)
 154 fi
 155 #endif SILC_DIST_SIM
 156
 157 # lib/contrib conditionals
 158 #
 159 AC_CHECK_HEADER(regex.h,
 160   [
 161     AC_DEFINE([HAVE_REGEX_H], [], [HAVE_REGEX_H])
 162     have_regex=1
 163   ], have_regex=0
 164 )
 165 AM_CONDITIONAL(HAVE_REGEX, test x$have_regex = x1)
 166
 167 AC_CHECK_FUNC(getopt_long,
 168   [
 169     AC_DEFINE([HAVE_GETOPT_LONG], [], [HAVE_GETOPT_LONG])
 170     have_getopt_long=1
 171   ], have_getopt_long=0
 172 )
 173
 174 AC_CHECK_FUNC(getopt,
 175   [
 176     AC_DEFINE([HAVE_GETOPT], [], [HAVE_GETOPT])
 177     have_getopt=1
 178   ], have_getopt=0
 179 )
 180
 181 ##
 182 ##  Enable/disable checking
 183 ##
 184
 185 # IPv6 support
 186 #
 187 AC_MSG_CHECKING(whether to enable IPv6 support)
 188 AC_ARG_ENABLE(ipv6,
 189   [  --enable-ipv6           enable IPv6 support],
 190   [
 191     case "${enableval}" in
 192       yes)
 193         want_ipv6=true
 194         check_ipv6=false
 195         summary_ipv6="yes"
 196         AC_DEFINE([HAVE_IPV6], [], [HAVE_IPV6])
 197         AC_MSG_RESULT(yes)
 198         ;;
 199       *)
 200         want_ipv6=false
 201         check_ipv6=false
 202         summary_ipv6="no"
 203         AC_MSG_RESULT(no)
 204         ;;
 205     esac
 206   ],
 207     check_ipv6=true
 208   )
 209
 210 if test x$check_ipv6 = xtrue; then
 211   summary_ipv6="no"
 212   AC_TRY_COMPILE(
 213     [
 214       #ifdef HAVE_SYS_TYPES_H
 215       #include <sys/types.h>
 216       #endif
 217       #ifdef HAVE_NETINET_TCP_H
 218       #include <netinet/tcp.h>
 219       #endif
 220       #ifdef HAVE_NETDB_H
 221       #include <netdb.h>
 222       #endif
 223       #include <sys/socket.h>
 224       #ifdef HAVE_NETINET_IN_H
 225       #include <netinet/in.h>
 226       #endif
 227     ],
 228     [
 229       struct sockaddr_in6 sin6;
 230       int family = AF_INET6;
 231     ],
 232     [
 233       AC_DEFINE([HAVE_IPV6], [], [HAVE_IPV6])
 234       AC_MSG_RESULT(yes)
 235       summary_ipv6="yes"
 236     ],
 237       AC_MSG_RESULT(no)
 238     )
 239 fi
 240
 241 # Debug checking
 242 #
 243 AC_MSG_CHECKING(whether to enable debugging)
 244 summary_debug="no"
 245 __SILC_ENABLE_DEBUG=""
 246 AC_ARG_ENABLE(debug,
 247   [  --enable-debug          enable debugging],
 248   [
 249     case "${enableval}" in
 250       yes)
 251         AC_MSG_RESULT(yes)
 252         AC_DEFINE([SILC_DEBUG], [], [enable-debug])
 253         summary_debug="yes"
 254         __SILC_ENABLE_DEBUG="#define __SILC_ENABLE_DEBUG 1"
 255         ;;
 256       *)
 257         AC_MSG_RESULT(no)
 258         ;;
 259     esac
 260   ],
 261   [
 262     AC_MSG_RESULT(no)
 263   ])
 264
 265 # Disable all assembler optimizations
 266 #
 267 AC_MSG_CHECKING(whether to enable assembler optimizations)
 268 want_asm=true
 269 AC_ARG_ENABLE(asm,
 270   [  --disable-asm           do not use assembler optimizations],
 271   [
 272     AC_MSG_RESULT(no)
 273     want_asm=false
 274   ],
 275   [
 276     AC_MSG_RESULT(yes)
 277     want_asm=true
 278   ])
 279
 280 ##
 281 ## Compiler and compiler flag checks
 282 ##
 283
 284 # Function to check if compiler flag works
 285 # Usage: SILC_ADD_CFLAGS(FLAGS, [ACTION-IF-FAILED])
 286 AC_DEFUN([SILC_ADD_CFLAGS],
 287 [ tmp_CFLAGS="$CFLAGS"
 288   CFLAGS="$CFLAGS $1"
 289   AC_MSG_CHECKING(whether $CC accepts $1 flag)
 290   AC_TRY_LINK([], [], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)
 291                                        CFLAGS="$tmp_CFLAGS"
 292                                        $2])
 293   unset tmp_CFLAGS
 294 ])
 295
 296 # Function to check if compiler flag works, destination specifiable
 297 # Usage: SILC_ADD_CC_FLAGS(VAR, FLAGS, [ACTION-IF-FAILED])
 298 AC_DEFUN([SILC_ADD_CC_FLAGS],
 299 [ tmp_CFLAGS="$1_CFLAGS"
 300   $1_CFLAGS="${$1_CFLAGS} $2"
 301   AC_MSG_CHECKING(whether $CC accepts $2 flag)
 302   AC_TRY_LINK([], [], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)
 303                                        $1_CFLAGS="$tmp_CFLAGS"
 304                                        $3])
 305   unset tmp_CFLAGS
 306 ])
 307
 308 if test "$GCC"; then
 309   # GCC specific options
 310   if test "x$summary_debug" = "xyes"; then
 311     SILC_ADD_CFLAGS(-g -O)
 312   else
 313     SILC_ADD_CFLAGS(-g -O2)
 314   fi
 315   SILC_ADD_CFLAGS(-Wall -finline-functions)
 316   SILC_ADD_CFLAGS(-Wno-pointer-sign)
 317 else
 318   # Other compilers
 319   case "$target" in
 320     alpha*-dec-osf*)
 321       SILC_ADD_CFLAGS(-g3 -O2, SILC_ADD_CFLAGS(-g3 -O, SILC_ADD_CFLAGS(-O)))
 322       ;;
 323     mips*-sgi-irix*)
 324       SILC_ADD_CFLAGS(-g3 -O2, SILC_ADD_CFLAGS(-g3 -O, SILC_ADD_CFLAGS(-O)))
 325       ;;
 326     *)
 327       SILC_ADD_CFLAGS(-g)
 328       SILC_ADD_CFLAGS(-O2, SILC_ADD_CFLAGS(-O))
 329       ;;
 330   esac
 331
 332   # Intel C++ Compiler needs -restrict
 333   if test "x$CC" = "xicc"; then
 334     SILC_ADD_CFLAGS(-restrict)
 335   fi
 336 fi
 337
 338 #
 339 # Workaround a bug in GCC 2.x which causes memory exhaustion
 340 # when compiling sha1 with optimizations on UltraSPARC.
 341 #
 342 FIX_SHA1='#'
 343 if test "$GCC" -a "$host_cpu" = "sparc64"; then
 344   AC_MSG_CHECKING(whether to enable GCC 2.x workaround for SHA1)
 345   AC_TRY_COMPILE(
 346     [
 347       #if defined(__sparc64__) && (__GNUC__ == 2)
 348       #else
 349       choke me
 350       #endif
 351     ],
 352     [],
 353     [
 354       FIX_SHA1=''
 355       AC_MSG_RESULT(yes)
 356     ],
 357       AC_MSG_RESULT(no)
 358     )
 359 fi
 360 AC_SUBST(FIX_SHA1)
 361 #endif SILC_DIST_COMPILER
 362
 363 ##
 364 ##  Installation
 365 ##
 366
 367 # Default installation destination
 368 #
 369 #ifdef SILC_DIST_AUTODIST
 370 AC_PREFIX_DEFAULT(/usr/local)
 371 #else !SILC_DIST_AUTODIST
 372 AC_PREFIX_DEFAULT(/usr/local/silc)
 373 #endif SILC_DIST_AUTODIST
 374 if test "x$prefix" != xNONE; then
 375   silc_prefix="$prefix"
 376 else
 377   silc_prefix="$ac_default_prefix"
 378 fi
 379
 380 #ifndef SILC_DIST_AUTODIST
 381 # etc directory
 382 #
 383 if test "x$sysconfdir" != 'x${prefix}/etc'; then
 384   ETCDIR="$sysconfdir"
 385 else
 386   ETCDIR="$silc_prefix/etc"
 387 fi
 388
 389 AC_ARG_WITH(etcdir,
 390   [[  --with-etcdir=DIR       directory for system files [/etc/silc]]],
 391   [
 392     case "$withval" in
 393       no|yes)
 394         ;;
 395       *)
 396         ETCDIR="$withval"
 397         ;;
 398     esac
 399   ])
 400 AC_SUBST(ETCDIR)
 401 AC_DEFINE_UNQUOTED([SILC_ETCDIR], "$ETCDIR", [SILC_ETCDIR])
 402
 403 # doc directory
 404 #
 405 DOCDIR="$silc_prefix/doc"
 406 AC_ARG_WITH(docdir,
 407   [[  --with-docdir=DIR       directory for SILC documentation [PREFIX/doc]]],
 408   [
 409     case "$withval" in
 410       no|yes)
 411         ;;
 412       *)
 413         DOCDIR="$withval"
 414         ;;
 415     esac
 416   ])
 417 AC_SUBST(DOCDIR)
 418 AC_DEFINE_UNQUOTED([SILC_DOCDIR], "$DOCDIR", [SILC_DOCDIR])
 419 #endif SILC_DIST_AUTODIST
 420
 421 #ifdef SILC_DIST_COMPILER
 422 ##
 423 ##  With/without checkings
 424 ##
 425
 426 #
 427 # SILC library checking
 428 compile_libs=true
 429 LIBSUBDIR=lib
 430
 431 #ifndef SILC_DIST_TOOLKIT
 432 AC_ARG_WITH(silc-includes,
 433   [  --with-silc-includes=DIR SILC Toolkit includes [search in DIR]],
 434   [ac_silc_includes="$withval"], [ac_silc_includes="no"])
 435 AC_ARG_WITH(silc-libs,
 436   [  --with-silc-libs=DIR     SILC Toolkit libraries [search in DIR]],
 437   [ac_silc_libs="$withval"], [ac_silc_libs="no"])
 438
 439 if test -n "$with_silc_includes" || test -n "$with_silc_libs"; then
 440
 441   # Manually provided libs
 442   if test "$ac_silc_includes" != "no"; then
 443     compile_libs=false
 444     SILC_LIB_INCLUDES="-I$ac_silc_includes"
 445     LIBSUBDIR=
 446   fi
 447   if test "$ac_silc_libs" != "no"; then
 448     compile_libs=false
 449     LIBSUBDIR=
 450     LIBS="$LIBS -L$ac_silc_libs"
 451   fi
 452
 453   # Check libs to link against
 454   f=`$EGREP __SILC_HAVE_PTHREAD $ac_silc_includes/silc.h`
 455   if test -n "$f"; then
 456     LIBS="$LIBS -lpthread"
 457     check_threads=false
 458     has_threads=true
 459   fi
 460   f=`$EGREP __SILC_HAVE_SIM $ac_silc_includes/silc.h`
 461   if test -n "$f"; then
 462     LIBS="$LIBS -ldl"
 463   fi
 464
 465 else
 466   # pkg-config check
 467   PKG_CHECK_MODULES(SILC, silc, compile_libs=false, compile_libs=true)
 468 #ifdef SILC_DIST_CLIENTLIB
 469   PKG_CHECK_MODULES(SILCCLIENT, silcclient, compile_libs=false, compile_libs=true)
 470 #endif SILC_DIST_CLIENTLIB
 471 #ifdef SILC_DIST_SERVERLIB
 472   PKG_CHECK_MODULES(SILCSERVER, silcserver, compile_libs=false, compile_libs=true)
 473 #endif SILC_DIST_SERVERLIB
 474
 475   if test x$compile_libs = xfalse; then
 476     LIBSUBDIR=
 477     LIBS="$LIBS $SILC_LIBS"
 478     CFLAGS="$CFLAGS $SILC_CFLAGS"
 479 #ifdef SILC_DIST_CLIENTLIB
 480     LIBS="$LIBS $SILCCLIENT_LIBS"
 481     CFLAGS="$CFLAGS $SILCCLIENT_CFLAGS"
 482 #endif SILC_DIST_CLIENTLIB
 483 #ifdef SILC_DIST_SERVERLIB
 484     LIBS="$LIBS $SILCSERVER_LIBS"
 485     CFLAGS="$CFLAGS $SILCSERVER_CFLAGS"
 486 #endif SILC_DIST_SERVERLIB
 487   fi
 488 fi
 489 #endif SILC_DIST_TOOLKIT
 490
 491 AC_SUBST(LIBSUBDIR)
 492
 493 # SOCKS4 support checking
 494 #
 495 SAVE_LIBS="$LIBS"
 496 SAVE_CFLAGS="$CFLAGS"
 497 SAVE_LDFLAGS="$LDFLAGS"
 498 AC_MSG_CHECKING(whether to support SOCKS4)
 499 AC_ARG_WITH(socks4,
 500   [[  --with-socks4[=DIR]     with SOCKS4 support [search in DIR/lib and DIR/include]]],
 501   [
 502     case "$withval" in
 503       no)
 504         AC_MSG_RESULT(no)
 505         ;;
 506       *)
 507         AC_MSG_RESULT(yes)
 508         socks=4
 509
 510         if test -d "$withval/include"; then
 511           CFLAGS="$CFLAGS -I$withval/include"
 512         fi
 513         if test -d "$withval/lib"; then
 514           LDFLAGS="$LDFLAGS -L$withval/lib"
 515         fi
 516
 517         LIBS="-lsocks $LIBS"
 518         ;;
 519     esac
 520
 521     AC_TRY_LINK([],
 522       [
 523         Rconnect();
 524       ], [],
 525       [
 526         AC_MSG_ERROR(Could not find SOCKS4 library.)
 527         LIBS="$SAVE_LIBS"
 528         CFLAGS="$SAVE_CFLAGS"
 529         LDFLAGS="$SAVE_LDFLAGS"
 530       ])
 531   ],
 532     AC_MSG_RESULT(no)
 533   )
 534
 535 # SOCKS5 support checking
 536 #
 537 SAVE_LIBS="$LIBS"
 538 SAVE_CFLAGS="$CFLAGS"
 539 SAVE_LDFLAGS="$LDFLAGS"
 540 AC_MSG_CHECKING(whether to support SOCKS5)
 541 AC_ARG_WITH(socks5,
 542   [[  --with-socks5[=DIR]     with SOCKS5 support [search in DIR/lib and DIR/include]]],
 543   [
 544     case "$withval" in
 545       no)
 546         AC_MSG_RESULT(no)
 547         ;;
 548       *)
 549         AC_MSG_RESULT(yes)
 550         socks=5
 551
 552         if test -d "$withval/include"; then
 553           CFLAGS="$CFLAGS -I$withval/include"
 554         fi
 555         if test -d "$withval/lib"; then
 556           LDFLAGS="$LDFLAGS -L$withval/lib"
 557         fi
 558
 559         LIBS="-lsocks5 $LIBS"
 560         ;;
 561     esac
 562
 563     AC_TRY_LINK([],
 564       [
 565         SOCKSconnect();
 566       ], [],
 567       [
 568         AC_MSG_ERROR(Could not find SOCKS5 library.)
 569         LIBS="$SAVE_LIBS"
 570         CFLAGS="$SAVE_CFLAGS"
 571         LDFLAGS="$SAVE_LDFLAGS"
 572       ])
 573   ],
 574     AC_MSG_RESULT(no)
 575   )
 576
 577 if test "x$socks" = "x4"; then
 578   AC_DEFINE([SOCKS], [], [Socks])
 579   CFLAGS="$CFLAGS -Dconnect=Rconnect -Dgetsockname=Rgetsockname -Dbind=Rbind -Daccept=Raccept -Dlisten=Rlisten -Dselect=Rselect"
 580 fi
 581
 582 if test "x$socks" = "x5"; then
 583   AC_DEFINE([SOCKS], [], [Socks])
 584   AC_DEFINE([SOCKS5], [], [Socks5])
 585   AC_DEFINE([Rconnect], [SOCKSconnect], [Socks])
 586   AC_DEFINE([Rgetsockname], [SOCKSgetsockname], [Socks])
 587   AC_DEFINE([Rgetpeername], [SOCKSgetpeername], [Socks])
 588   AC_DEFINE([Rbind], [SOCKSbind], [Socks])
 589   AC_DEFINE([Raccept], [SOCKSaccept], [Socks])
 590   AC_DEFINE([Rlisten], [SOCKSlisten], [Socks])
 591   AC_DEFINE([Rselect], [SOCKSselect], [Socks])
 592   AC_DEFINE([Rrecvfrom], [SOCKSrecvfrom], [Socks])
 593   AC_DEFINE([Rsendto], [SOCKSsendto], [Socks])
 594   AC_DEFINE([Rrecv], [SOCKSrecv], [Socks])
 595   AC_DEFINE([Rsend], [SOCKSsend], [Socks])
 596   AC_DEFINE([Rread], [SOCKSread], [Socks])
 597   AC_DEFINE([Rwrite], [SOCKSwrite], [Socks])
 598   AC_DEFINE([Rrresvport], [SOCKSrresvport], [Socks])
 599   AC_DEFINE([Rshutdown], [SOCKSshutdown], [Socks])
 600   AC_DEFINE([Rlisten], [SOCKSlisten], [Socks])
 601   AC_DEFINE([Rclose], [SOCKSclose], [Socks])
 602   AC_DEFINE([Rdup], [SOCKSdup], [Socks])
 603   AC_DEFINE([Rdup2], [SOCKSdup2], [Socks])
 604   AC_DEFINE([Rfclose], [SOCKSfclose], [Socks])
 605   AC_DEFINE([Rgethostbyname], [SOCKSgethostbyname], [Socks])
 606 fi
 607
 608 #ifdef SILC_DIST_MATH
 609 # MP library checking. First check whether user wants to use GMP and use
 610 # it if found. If not or not defined then compile the default library in the
 611 # source tree.
 612 #
 613 mp_gmp=false
 614 SAVE_LIBS="$LIBS"
 615 SAVE_CFLAGS="$CFLAGS"
 616 SAVE_LDFLAGS="$LDFLAGS"
 617 AC_MSG_CHECKING(whether to search for GMP)
 618 AC_ARG_WITH(gmp,
 619   [[  --with-gmp[=DIR]        use GMP instead of SILC Math [search in DIR/lib and DIR/include]]],
 620   [
 621     case "$withval" in
 622       no)
 623         AC_MSG_RESULT(no)
 624         ;;
 625       *)
 626         AC_MSG_RESULT(yes)
 627
 628         if test -d "$withval/include"; then
 629           CFLAGS="$CFLAGS -I$withval/include"
 630         fi
 631         if test -d "$withval/lib"; then
 632           LDFLAGS="$LDFLAGS -L$withval/lib"
 633         fi
 634
 635         LIBS="-lgmp $LIBS"
 636         ;;
 637     esac
 638
 639     AC_CHECK_LIB(gmp, __gmpz_init,
 640       [
 641         mp_gmp=true
 642         AC_DEFINE([SILC_MP_GMP], [], [GMP])
 643         AC_MSG_RESULT(Using GMP as a MP library.)
 644       ],
 645       [
 646         LIBS="$SAVE_LIBS"
 647         CFLAGS="$SAVE_CFLAGS"
 648         LDFLAGS="$SAVE_LDFLAGS"
 649       ])
 650   ],
 651     AC_MSG_RESULT(no)
 652   )
 653
 654 AM_CONDITIONAL(SILC_MP_GMP, test x$mp_gmp = xtrue)
 655 AM_CONDITIONAL(SILC_MP_SILCMATH, test x$mp_gmp = xfalse)
 656 if test x$mp_gmp = xfalse; then
 657   AC_DEFINE([SILC_MP_SILCMATH], [], [SILCMATH])
 658   AC_MSG_RESULT(Using SILC Math as a MP library.)
 659 fi
 660 #endif SILC_DIST_MATH
 661
 662 # iconv support
 663 #
 664 check_iconv=true
 665 has_iconv=false
 666 SAVE_LIBS="$LIBS"
 667 SAVE_CFLAGS="$CFLAGS"
 668 SAVE_LDFLAGS="$LDFLAGS"
 669 SAVE_CPPFLAGS="$CPPFLAGS"
 670 AC_MSG_CHECKING(whether to implicit search for libiconv)
 671 AC_ARG_WITH(iconv,
 672   [[  --with-iconv[=DIR]      use libiconv [search in DIR/include and DIR/lib]]],
 673   [
 674     case "${withval}" in
 675       no)
 676         AC_MSG_RESULT(no)
 677         AC_CHECK_HEADERS(iconv.h,
 678           [
 679             AC_CHECK_FUNC(iconv, has_iconv=true)
 680           ])
 681         check_iconv=false
 682         ;;
 683       *)
 684         AC_MSG_RESULT(yes)
 685         if test -d $withval/include; then
 686           CPPFLAGS="$CPPFLAGS -I$withval/include"
 687           CFLAGS="$CFLAGS -I$withval/include"
 688         fi
 689         if test -d $withval/lib; then
 690           LDFLAGS="$LDFLAGS -L$withval/lib"
 691         fi
 692         ;;
 693     esac
 694   ],
 695   [
 696     AC_MSG_RESULT(no)
 697     AC_CHECK_HEADERS(iconv.h,
 698       [
 699         AC_CHECK_FUNCS(iconv,
 700           [
 701             has_iconv=true
 702             check_iconv=false
 703           ])
 704       ])
 705   ])
 706
 707 if test x$check_iconv = xtrue; then
 708   AC_MSG_RESULT(Searching for iconv...)
 709
 710   # XXX
 711   unset ac_cv_header__iconv_h_ ac_cv_header_iconv_h || true
 712
 713   AC_CHECK_HEADERS(iconv.h,
 714     [
 715       LIBS="$LIBS -liconv"
 716       AC_MSG_CHECKING(for iconv in -liconv)
 717       AC_TRY_LINK(
 718         [
 719           #include <stdlib.h>
 720           #include <iconv.h>
 721         ],
 722         [
 723           iconv_t cd = iconv_open("", "");
 724           iconv(cd, NULL, NULL, NULL, NULL);
 725           iconv_close(cd);
 726         ],
 727         [
 728           echo "yes"
 729           AC_DEFINE([HAVE_ICONV], [], [Define if you have the iconv() function.])
 730           has_iconv=true
 731           check_iconv=false
 732         ],
 733         [
 734           echo "no"
 735           LIBS="$SAVE_LIBS"
 736           CFLAGS="$SAVE_CFLAGS"
 737           LDFLAGS="$SAVE_LDFLAGS"
 738           CPPFLAGS="$SAVE_CPPFLAGS"
 739         ])
 740      ])
 741 fi
 742
 743 if test x$check_iconv = xtrue; then
 744   # search for iconv library..
 745   SAVE_LIBS="$LIBS"
 746   SAVE_CFLAGS="$CFLAGS"
 747   SAVE_LDFLAGS="$LDFLAGS"
 748   SAVE_CPPFLAGS="$CPPFLAGS"
 749
 750   for dir in `echo "/usr/local /usr/pkg /usr/contrib"`; do
 751     if test x$has_iconv = xfalse; then
 752       AC_MSG_RESULT(searching in $dir...)
 753
 754       if test -d $dir/include; then
 755         CPPFLAGS="$CPPFLAGS -I$dir/include"
 756         CFLAGS="$CFLAGS -I$dir/include"
 757       fi
 758       if test -d $dir/lib; then
 759         LDFLAGS="$LDFLAGS -L$dir/lib"
 760       fi
 761
 762       # XXX
 763       unset ac_cv_header__iconv_h_ ac_cv_header_iconv_h || true
 764
 765       AC_CHECK_HEADERS(iconv.h,
 766         [
 767           LIBS="$LIBS -liconv"
 768           AC_MSG_CHECKING(for iconv in -liconv)
 769           AC_TRY_LINK(
 770             [
 771               #include <stdlib.h>
 772               #include <iconv.h>
 773             ],
 774             [
 775               iconv_t cd = iconv_open("", "");
 776               iconv(cd, NULL, NULL, NULL, NULL);
 777               iconv_close(cd);
 778             ],
 779             [
 780               echo "yes"
 781               has_iconv=true
 782               AC_DEFINE([HAVE_ICONV], [], [Define if you have the iconv() function.])
 783             ],
 784             [
 785               echo "no"
 786               has_iconv=false
 787
 788               LIBS="$SAVE_LIBS"
 789               CFLAGS="$SAVE_CFLAGS"
 790               LDFLAGS="$SAVE_LDFLAGS"
 791               CPPFLAGS="$SAVE_CPPFLAGS"
 792             ])
 793          ],
 794          [
 795            CFLAGS="$SAVE_CFLAGS"
 796            LDFLAGS="$SAVE_LDFLAGS"
 797            CPPFLAGS="$SAVE_CPPFLAGS"
 798          ])
 799       fi
 800     done
 801 fi
 802
 803 if test x$has_iconv = xtrue; then
 804   # (1) Some implementations of iconv won't convert from UTF-8 to UTF-8.
 805   # (2) In glibc-2.1.2 and earlier there is a bug that messes up ob and
 806   #     obl when args 2 and 3 are 0 (fixed in glibc-2.1.3).
 807   #
 808   AC_CACHE_CHECK([whether this iconv is good enough], ac_iconv_good,
 809     AC_TRY_RUN(
 810       [
 811         #include <iconv.h>
 812         int main() {
 813           iconv_t cd;
 814         changequote(, )dnl
 815           char buf[4];
 816         changequote([, ])dnl
 817           char *ob;
 818           size_t obl;
 819           ob = buf, obl = sizeof(buf);
 820           return ((cd = iconv_open("UTF-8", "UTF-8")) != (iconv_t)(-1) &&
 821                  (iconv(cd, 0, 0, &ob, &obl) ||
 822                  !(ob == buf && obl == sizeof(buf)) ||
 823                  iconv_close(cd)));
 824         }
 825       ],
 826       [
 827         ac_iconv_good=yes
 828       ],
 829       [
 830         ac_iconv_good=no
 831       ],
 832       [
 833         ac_iconv_good=yes
 834       ])
 835     )
 836
 837   if test x$ac_iconv_good = xno; then
 838     AC_MSG_RESULT(Try using libiconv instead.)
 839   fi
 840 fi
 841
 842 # POSIX threads support
 843 #
 844 AC_MSG_CHECKING(whether to search for POSIX threads)
 845 AC_ARG_WITH(pthreads,
 846   [[  --with-pthreads[=DIR]   use POSIX threads [search in DIR/include and DIR/lib]]],
 847   [
 848     case "${withval}" in
 849       no)
 850         check_threads=false
 851         ;;
 852       *)
 853         if test -d $withval/include; then
 854           CPPFLAGS="$CPPFLAGS -I$withval/include"
 855           CFLAGS="$CFLAGS -I$withval/include"
 856         fi
 857         if test -d $withval/lib; then
 858           LDFLAGS="$LDFLAGS -L$withval/lib"
 859         fi
 860
 861         check_threads=true
 862         ;;
 863     esac
 864   ])
 865
 866 if test x$check_threads = xtrue; then
 867   has_threads=false
 868   SAVE_LIBS="$LIBS"
 869   SAVE_CFLAGS="$CFLAGS"
 870   SAVE_LDFLAGS="$LDFLAGS"
 871   SAVE_CPPFLAGS="$CPPFLAGS"
 872
 873   AC_MSG_RESULT(yes)
 874   AC_CHECK_HEADERS(pthread.h,
 875     [
 876       LIBS="$LIBS -lpthread"
 877       AC_CHECK_LIB(pthread, pthread_attr_init, has_threads=true,
 878         [
 879           # FreeBSD
 880           case "${target}" in
 881             *-*-freebsd*)
 882               LIBS="$SAVE_LIBS -pthread"
 883               AC_CHECK_LIB(c_r, pthread_attr_init, has_threads=true, LIBS="$SAVE_LIBS")
 884               ;;
 885             *)
 886               LIBS="$SAVE_LIBS"
 887               ;;
 888           esac
 889         ])
 890     ],
 891     [
 892       # search for pthread library..
 893       for dir in `echo "/usr/local /usr/pkg /usr/contrib /usr/pkg/pthreads /usr/local/pthreads"`; do
 894         if test x$has_threads = xfalse; then
 895           AC_MSG_RESULT(searching in $dir...)
 896
 897           if test -d $dir/include; then
 898             CPPFLAGS="$CPPFLAGS -I$dir/include"
 899             CFLAGS="$CFLAGS -I$dir/include"
 900           fi
 901           if test -d $dir/lib; then
 902             LDFLAGS="$LDFLAGS -L$dir/lib"
 903           fi
 904
 905           # XXX
 906           unset ac_cv_header__pthread_h_ ac_cv_header_pthread_h || true
 907
 908           AC_CHECK_HEADERS(pthread.h,
 909             [
 910               LIBS="$LIBS -lpthread"
 911               AC_CHECK_LIB(pthread, pthread_attr_init, has_threads=true,
 912                 [
 913                   has_threads=false
 914
 915                   LIBS="$SAVE_LIBS"
 916                   CFLAGS="$SAVE_CFLAGS"
 917                   LDFLAGS="$SAVE_LDFLAGS"
 918                   CPPFLAGS="$SAVE_CPPFLAGS"
 919                 ])
 920             ],
 921             [
 922               CFLAGS="$SAVE_CFLAGS"
 923               LDFLAGS="$SAVE_LDFLAGS"
 924               CPPFLAGS="$SAVE_CPPFLAGS"
 925             ])
 926         fi
 927       done
 928     ])
 929 else
 930   AC_MSG_RESULT(no)
 931   has_threads=false
 932 fi
 933
 934 __SILC_HAVE_PTHREAD=""
 935 AM_CONDITIONAL(SILC_THREADS, test x$has_threads = xtrue)
 936 if test x$has_threads = xtrue; then
 937   CFLAGS="$CFLAGS -D_REENTRANT"
 938
 939   # XXX possibly incomplete
 940   case "${target}" in
 941     *-*-aix*)
 942       CFLAGS="$CFLAGS -D_THREAD_SAFE"
 943       if test x"$GCC" = xyes; then
 944         CFLAGS="$CFLAGS -mthreads"
 945       fi
 946       ;;
 947     *-*-freebsd*)
 948       CFLAGS="$CFLAGS -D_THREAD_SAFE"
 949       ;;
 950     *-*-sysv5uw7*)  # UnixWare 7
 951       if test "$GCC" != "yes"; then
 952         CFLAGS="$CFLAGS -Kthread"
 953       else
 954         CFLAGS="$CFLAGS -pthread"
 955       fi
 956       ;;
 957     *-dg-dgux*)  # DG/UX
 958       CFLAGS="$CFLAGS -D_POSIX4A_DRAFT10_SOURCE"
 959       ;;
 960    esac
 961
 962   AC_CHECK_FUNC(pthread_create)
 963   AC_DEFINE([SILC_HAVE_PTHREAD], [], [HAVE_PTHREAD])
 964   AC_DEFINE([SILC_THREADS], [], [HAVE_THREAD])
 965   __SILC_HAVE_PTHREAD="#define __SILC_HAVE_PTHREAD 1"
 966 fi
 967
 968 # Native WIN32 compilation under cygwin
 969 #
 970 AC_MSG_CHECKING(whether to compile native WIN32 code)
 971 AC_ARG_WITH(win32,
 972   [  --with-win32            compile native WIN32 (MinGW) code (-mno-cygwin)],
 973   [
 974     AC_MSG_RESULT(yes)
 975     AC_DEFINE([SILC_WIN32], [], [SILC_WIN32])
 976     win32_support=true
 977     CFLAGS="-mno-cygwin $CFLAGS"
 978     LIBS="$LIBS -lwsock32"
 979   ],
 980   [
 981     AC_MSG_RESULT(no)
 982   ])
 983 AM_CONDITIONAL(SILC_WIN32, test x$win32_support = xtrue)
 984
 985 # Native EPOC support (disabled by default)
 986 #
 987 AM_CONDITIONAL(SILC_EPOC, test xfalse = xtrue)
 988
 989 # Native BeOS support (disabled by default)
 990 #
 991 AM_CONDITIONAL(SILC_BEOS, test xfalse = xtrue)
 992
 993 # Native OS2 support (disabled by default)
 994 #
 995 AM_CONDITIONAL(SILC_OS2, test xfalse = xtrue)
 996
 997 #ifdef SILC_DIST_TOOLKIT
 998 # --with-irssi
 999 #
1000 without_irssi=true
1001 AC_MSG_CHECKING(whether to compile Irssi SILC Client)
1002 AC_ARG_WITH(irssi,
1003   [  --with-irssi            compile with Irssi SILC Client],
1004   [
1005     AC_MSG_RESULT(yes)
1006     without_irssi=false
1007   ],
1008   [
1009     AC_MSG_RESULT(no)
1010     without_irssi=true
1011   ])
1012 AM_CONDITIONAL(with_irssi, test xwithout_irssi = xfalse)
1013
1014 # --with-silcd
1015 #
1016 without_silcd=true
1017 AC_MSG_CHECKING(whether to compile SILC Server)
1018 AC_ARG_WITH(silcd,
1019   [  --with-silcd            compile with SILC Server],
1020   [
1021     AC_MSG_RESULT(yes)
1022     without_silcd=false
1023   ],
1024   [
1025     AC_MSG_RESULT(no)
1026     without_silcd=true
1027   ])
1028 #endif SILC_DIST_TOOLKIT
1029 #ifdef SILC_DIST_INPLACE
1030 without_irssi=false
1031 without_silcd=false
1032 #endif SILC_DIST_INPLACE
1033
1034 libtoolfix=true
1035 AC_MSG_CHECKING(whether to do libtoolfix)
1036 AC_ARG_WITH(libtoolfix,
1037   [  --without-libtoolfix    Do not fix libtool, for package builders],
1038   [
1039     AC_MSG_RESULT(no)
1040     libtoolfix=false
1041   ],
1042   [
1043     AC_MSG_RESULT(yes)
1044   ])
1045
1046 AC_SUBST(ETCDIR)
1047 AC_DEFINE_UNQUOTED([SILC_ETCDIR], "$ETCDIR", [SILC_ETCDIR])
1048 #endif SILC_DIST_COMPILER
1049
1050 ##
1051 ##  Misc
1052 ##
1053
1054 # Make enable-shared aware
1055 AM_CONDITIONAL(SILC_ENABLE_SHARED, test "$enable_shared" = yes)
1056
1057 SILC_TOP_SRCDIR=`pwd`
1058
1059 # Included configure scripts
1060 AD_INCLUDE_CONFIGURE
1061
1062 #ifdef SILC_DIST_COMPILER
1063 #
1064 # Substitutions
1065 #
1066 AC_SUBST(SILC_TOP_SRCDIR)
1067 AC_SUBST(LIBS)
1068 AC_SUBST(SILC_LIB_INCLUDES)
1069 AC_SUBST(__SILC_HAVE_PTHREAD)
1070 AC_SUBST(__SILC_HAVE_SIM)
1071 AC_SUBST(__SILC_ENABLE_DEBUG)
1072
1073 #
1074 # Fix the libtool to support run-time configuration.  This allows us
1075 # to in run-time specify when to compile shared/static libraries without
1076 # need to reconfigure the entire libtool.
1077 #
1078 if test x$libtoolfix = xtrue; then
1079   ./libtoolfix $SILC_TOP_SRCDIR/ltmain.sh
1080 fi
1081 AM_CONDITIONAL(SILC_LIBTOOLFIX, test x$libtoolfix = xtrue)
1082
1083 INCLUDE_DEFINES_INT="include \$(top_srcdir)/Makefile.defines_int"
1084 AC_SUBST(INCLUDE_DEFINES_INT)
1085
1086 #endif SILC_DIST_COMPILER
1087
1088 #
1089 # Makefile outputs
1090 #
1091 AC_CONFIG_FILES(
1092 Makefile
1093 #ifdef SILC_DIST_DOC
1094 doc/Makefile
1095 #endif SILC_DIST_DOC
1096 #ifdef SILC_DIST_COMPILER
1097 Makefile.defines
1098 Makefile.defines_int
1099 includes/Makefile
1100 includes/silcversion.h
1101 includes/silc.h
1102 #endif SILC_DIST_COMPILER
1103 #ifdef SILC_DIST_APPS
1104 apps/Makefile
1105 #endif SILC_DIST_APPS
1106 )
1107
1108 #ifdef SILC_DIST_TOOLKIT
1109 AC_CONFIG_FILES(
1110 win32/Makefile
1111 win32/libsilc/Makefile
1112 win32/libsilcclient/Makefile
1113 tutorial/Makefile
1114 tutorial/Makefile.defines
1115 tutorial/Makefile.defines_int
1116 )
1117 #endif SILC_DIST_TOOLKIT
1118
1119 AC_OUTPUT
1120
1121 #ifdef SILC_DIST_COMPILER
1122 s_bindir=`eval echo $bindir`;s_bindir=`eval echo $s_bindir`
1123 s_sbindir=`eval echo $sbindir`;s_sbindir=`eval echo $s_sbindir`
1124 s_mandir=`eval echo $mandir`;s_mandir=`eval echo $s_mandir`
1125 s_includedir=`eval echo $includedir`;s_includedir=`eval echo $s_includedir`
1126
1127 echo ""
1128 echo "$PACKAGE Configuration Summary:"
1129 echo "---------------------------"
1130 echo " Target host ...................: $target"
1131 echo " Compiler ......................: $CC"
1132 echo " CFLAGS ........................: $CFLAGS"
1133 echo " LDFLAGS .......................: $LDFLAGS"
1134 echo " LIBS ..........................: $LIBS"
1135 echo ""
1136 echo " Installation prefix ...........: $prefix"
1137 echo " bin directory .................: $s_bindir"
1138 echo " sbin directory ................: $s_sbindir"
1139 echo " etc directory .................: $ETCDIR"
1140 echo " man directory .................: $s_mandir"
1141 echo " doc directory .................: $DOCDIR"
1142 #ifdef SILC_DIST_SIM
1143 echo " SIM directory .................: $MODULESDIR"
1144 #endif SILC_DIST_SIM
1145 #ifdef SILC_DIST_INCLUDES
1146 echo " include directory .............: $s_includedir"
1147 #endif SILC_DIST_INCLUDES
1148 echo ""
1149
1150 #ifdef SILC_DIST_TOOLKIT
1151 if test x$without_irssi = xtrue; then
1152   irssi="no"
1153 fi
1154 if test x$without_silcd = xtrue; then
1155   silcd="no"
1156 fi
1157 #endif SILC_DIST_TOOLKIT
1158
1159 #ifdef SILC_DIST_CLIENT
1160 echo " Compile SILC Client ...........: $irssi"
1161 #endif SILC_DIST_CLIENT
1162
1163 #ifdef SILC_DIST_SERVER
1164 echo " Compile SILC Server ...........: $silcd"
1165 #endif SILC_DIST_SERVER
1166
1167 #ifdef SILC_DIST_SIM
1168 if test x$sim_support = xfalse; then
1169   sim_support="no"
1170 else
1171   sim_support="yes"
1172 fi
1173 echo " SIM support ...................: $sim_support"
1174 #endif SILC_DIST_SIM
1175
1176 echo " IPv6 support ..................: $summary_ipv6"
1177
1178 if test x$has_iconv = xfalse; then
1179   iconv_support="no"
1180 else
1181   iconv_support="yes"
1182 fi
1183 echo " Iconv support .................: $iconv_support"
1184
1185 if test x$want_asm = xfalse; then
1186   summary_asm="no"
1187 else
1188   summary_asm="yes"
1189 fi
1190 echo " Assembler optimizations .......: $summary_asm"
1191
1192 #ifdef SILC_DIST_MATH
1193 if test x$mp_gmp = xtrue; then
1194   echo " Arithmetic library ............: GMP"
1195 fi
1196 #endif SILC_DIST_MATH
1197
1198 threads="no"
1199 if test x$has_threads = xtrue; then
1200   threads="yes"
1201 fi
1202 echo " Multi-threads support .........: $threads"
1203 echo " Debugging enabled .............: $summary_debug"
1204 echo ""
1205 echo "Compile the sources with 'make' or 'gmake' command."
1206 #endif SILC_DIST_COMPILER