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     *)
 319       SILC_ADD_CFLAGS(-g)
 320       SILC_ADD_CFLAGS(-O2, SILC_ADD_CFLAGS(-O))
 321       ;;
 322   esac
 323
 324   # Intel C++ Compiler needs -restrict
 325   if test "x$CC" = "xicc"; then
 326     SILC_ADD_CFLAGS(-restrict)
 327   fi
 328 fi
 329
 330 #
 331 # Workaround a bug in GCC 2.x which causes memory exhaustion
 332 # when compiling sha1 with optimizations on UltraSPARC.
 333 #
 334 FIX_SHA1='#'
 335 if test "$GCC" -a "$host_cpu" = "sparc64"; then
 336   AC_MSG_CHECKING(whether to enable GCC 2.x workaround for SHA1)
 337   AC_TRY_COMPILE(
 338     [
 339       #if defined(__sparc64__) && (__GNUC__ == 2)
 340       #else
 341       choke me
 342       #endif
 343     ],
 344     [],
 345     [
 346       FIX_SHA1=''
 347       AC_MSG_RESULT(yes)
 348     ],
 349       AC_MSG_RESULT(no)
 350     )
 351 fi
 352 AC_SUBST(FIX_SHA1)
 353 #endif SILC_DIST_COMPILER
 354
 355 ##
 356 ##  Installation
 357 ##
 358
 359 # Default installation destination
 360 #
 361 #ifdef SILC_DIST_AUTODIST
 362 AC_PREFIX_DEFAULT(/usr/local)
 363 #else !SILC_DIST_AUTODIST
 364 AC_PREFIX_DEFAULT(/usr/local/silc)
 365 #endif SILC_DIST_AUTODIST
 366 if test "x$prefix" != xNONE; then
 367   silc_prefix="$prefix"
 368 else
 369   silc_prefix="$ac_default_prefix"
 370 fi
 371
 372 #ifndef SILC_DIST_AUTODIST
 373 # etc directory
 374 #
 375 if test "x$sysconfdir" != 'x${prefix}/etc'; then
 376   ETCDIR="$sysconfdir"
 377 else
 378   ETCDIR="$silc_prefix/etc"
 379 fi
 380
 381 AC_ARG_WITH(etcdir,
 382   [[  --with-etcdir=DIR       directory for system files [/etc/silc]]],
 383   [
 384     case "$withval" in
 385       no|yes)
 386         ;;
 387       *)
 388         ETCDIR="$withval"
 389         ;;
 390     esac
 391   ])
 392 AC_SUBST(ETCDIR)
 393 AC_DEFINE_UNQUOTED([SILC_ETCDIR], "$ETCDIR", [SILC_ETCDIR])
 394
 395 # doc directory
 396 #
 397 DOCDIR="$silc_prefix/doc"
 398 AC_ARG_WITH(docdir,
 399   [[  --with-docdir=DIR       directory for SILC documentation [PREFIX/doc]]],
 400   [
 401     case "$withval" in
 402       no|yes)
 403         ;;
 404       *)
 405         DOCDIR="$withval"
 406         ;;
 407     esac
 408   ])
 409 AC_SUBST(DOCDIR)
 410 AC_DEFINE_UNQUOTED([SILC_DOCDIR], "$DOCDIR", [SILC_DOCDIR])
 411 #endif SILC_DIST_AUTODIST
 412
 413 #ifdef SILC_DIST_COMPILER
 414 ##
 415 ##  With/without checkings
 416 ##
 417
 418 #
 419 # SILC library checking
 420 compile_libs=true
 421
 422 #ifndef SILC_DIST_TOOLKIT
 423 AC_ARG_WITH(silc-includes,
 424   [  --with-silc-includes=DIR SILC Toolkit includes [search in DIR]],
 425   [ac_silc_includes="$withval"], [ac_silc_includes="no"])
 426 AC_ARG_WITH(silc-libs,
 427   [  --with-silc-libs=DIR     SILC Toolkit libraries [search in DIR]],
 428   [ac_silc_libs="$withval"], [ac_silc_libs="no"])
 429
 430 if test -n "$with_silc_includes" || test -n "$with_silc_libs"; then
 431
 432   # Manually provided libs
 433   if test "$ac_silc_includes" != "no"; then
 434     compile_libs=false
 435     SILC_LIB_INCLUDES="-I$ac_silc_includes"
 436   fi
 437   if test "$ac_silc_libs" != "no"; then
 438     compile_libs=false
 439     LIBS="$LIBS -L$ac_silc_libs"
 440   fi
 441
 442   # Check libs to link against
 443   f=`$EGREP __SILC_HAVE_PTHREAD $ac_silc_includes/silcincludes.h`
 444   if test -n "$f"; then
 445     LIBS="$LIBS -lpthread"
 446     check_threads=false
 447     has_threads=true
 448   fi
 449   f=`$EGREP __SILC_HAVE_SIM $ac_silc_includes/silcincludes.h`
 450   if test -n "$f"; then
 451     LIBS="$LIBS -ldl"
 452   fi
 453
 454 else
 455   # pkg-config check
 456   PKG_CHECK_MODULES(SILC, silc, compile_libs=false, compile_libs=true)
 457 #ifdef SILC_DIST_CLIENTLIB
 458   PKG_CHECK_MODULES(SILCCLIENT, silcclient, compile_libs=false, compile_libs=true)
 459 #endif SILC_DIST_CLIENTLIB
 460
 461   if test x$compile_libs = xfalse; then
 462     LIBS="$LIBS $SILC_LIBS"
 463     CFLAGS="$CFLAGS $SILC_CFLAGS"
 464 #ifdef SILC_DIST_CLIENTLIB
 465     LIBS="$LIBS $SILCCLIENT_LIBS"
 466     CFLAGS="$CFLAGS $SILCCLIENT_CFLAGS"
 467 #endif SILC_DIST_CLIENTLIB
 468   fi
 469 fi
 470 #endif SILC_DIST_TOOLKIT
 471
 472 # SOCKS4 support checking
 473 #
 474 SAVE_LIBS="$LIBS"
 475 SAVE_CFLAGS="$CFLAGS"
 476 SAVE_LDFLAGS="$LDFLAGS"
 477 AC_MSG_CHECKING(whether to support SOCKS4)
 478 AC_ARG_WITH(socks4,
 479   [[  --with-socks4[=DIR]     with SOCKS4 support [search in DIR/lib and DIR/include]]],
 480   [
 481     case "$withval" in
 482       no)
 483         AC_MSG_RESULT(no)
 484         ;;
 485       *)
 486         AC_MSG_RESULT(yes)
 487         socks=4
 488
 489         if test -d "$withval/include"; then
 490           CFLAGS="$CFLAGS -I$withval/include"
 491         fi
 492         if test -d "$withval/lib"; then
 493           LDFLAGS="$LDFLAGS -L$withval/lib"
 494         fi
 495
 496         LIBS="-lsocks $LIBS"
 497         ;;
 498     esac
 499
 500     AC_TRY_LINK([],
 501       [
 502         Rconnect();
 503       ], [],
 504       [
 505         AC_MSG_ERROR(Could not find SOCKS4 library.)
 506         LIBS="$SAVE_LIBS"
 507         CFLAGS="$SAVE_CFLAGS"
 508         LDFLAGS="$SAVE_LDFLAGS"
 509       ])
 510   ],
 511     AC_MSG_RESULT(no)
 512   )
 513
 514 # SOCKS5 support checking
 515 #
 516 SAVE_LIBS="$LIBS"
 517 SAVE_CFLAGS="$CFLAGS"
 518 SAVE_LDFLAGS="$LDFLAGS"
 519 AC_MSG_CHECKING(whether to support SOCKS5)
 520 AC_ARG_WITH(socks5,
 521   [[  --with-socks5[=DIR]     with SOCKS5 support [search in DIR/lib and DIR/include]]],
 522   [
 523     case "$withval" in
 524       no)
 525         AC_MSG_RESULT(no)
 526         ;;
 527       *)
 528         AC_MSG_RESULT(yes)
 529         socks=5
 530
 531         if test -d "$withval/include"; then
 532           CFLAGS="$CFLAGS -I$withval/include"
 533         fi
 534         if test -d "$withval/lib"; then
 535           LDFLAGS="$LDFLAGS -L$withval/lib"
 536         fi
 537
 538         LIBS="-lsocks5 $LIBS"
 539         ;;
 540     esac
 541
 542     AC_TRY_LINK([],
 543       [
 544         SOCKSconnect();
 545       ], [],
 546       [
 547         AC_MSG_ERROR(Could not find SOCKS5 library.)
 548         LIBS="$SAVE_LIBS"
 549         CFLAGS="$SAVE_CFLAGS"
 550         LDFLAGS="$SAVE_LDFLAGS"
 551       ])
 552   ],
 553     AC_MSG_RESULT(no)
 554   )
 555
 556 if test "x$socks" = "x4"; then
 557   AC_DEFINE([SOCKS], [], [Socks])
 558   CFLAGS="$CFLAGS -Dconnect=Rconnect -Dgetsockname=Rgetsockname -Dbind=Rbind -Daccept=Raccept -Dlisten=Rlisten -Dselect=Rselect"
 559 fi
 560
 561 if test "x$socks" = "x5"; then
 562   AC_DEFINE([SOCKS], [], [Socks])
 563   AC_DEFINE([SOCKS5], [], [Socks5])
 564   AC_DEFINE([Rconnect], [SOCKSconnect], [Socks])
 565   AC_DEFINE([Rgetsockname], [SOCKSgetsockname], [Socks])
 566   AC_DEFINE([Rgetpeername], [SOCKSgetpeername], [Socks])
 567   AC_DEFINE([Rbind], [SOCKSbind], [Socks])
 568   AC_DEFINE([Raccept], [SOCKSaccept], [Socks])
 569   AC_DEFINE([Rlisten], [SOCKSlisten], [Socks])
 570   AC_DEFINE([Rselect], [SOCKSselect], [Socks])
 571   AC_DEFINE([Rrecvfrom], [SOCKSrecvfrom], [Socks])
 572   AC_DEFINE([Rsendto], [SOCKSsendto], [Socks])
 573   AC_DEFINE([Rrecv], [SOCKSrecv], [Socks])
 574   AC_DEFINE([Rsend], [SOCKSsend], [Socks])
 575   AC_DEFINE([Rread], [SOCKSread], [Socks])
 576   AC_DEFINE([Rwrite], [SOCKSwrite], [Socks])
 577   AC_DEFINE([Rrresvport], [SOCKSrresvport], [Socks])
 578   AC_DEFINE([Rshutdown], [SOCKSshutdown], [Socks])
 579   AC_DEFINE([Rlisten], [SOCKSlisten], [Socks])
 580   AC_DEFINE([Rclose], [SOCKSclose], [Socks])
 581   AC_DEFINE([Rdup], [SOCKSdup], [Socks])
 582   AC_DEFINE([Rdup2], [SOCKSdup2], [Socks])
 583   AC_DEFINE([Rfclose], [SOCKSfclose], [Socks])
 584   AC_DEFINE([Rgethostbyname], [SOCKSgethostbyname], [Socks])
 585 fi
 586
 587 #ifdef SILC_DIST_MATH
 588 # MP library checking. First check whether user wants to use GMP and use
 589 # it if found. If not or not defined then compile the default library in the
 590 # source tree.
 591 #
 592 mp_gmp=false
 593 SAVE_LIBS="$LIBS"
 594 SAVE_CFLAGS="$CFLAGS"
 595 SAVE_LDFLAGS="$LDFLAGS"
 596 AC_MSG_CHECKING(whether to search for GMP)
 597 AC_ARG_WITH(gmp,
 598   [[  --with-gmp[=DIR]        use GMP instead of SILC Math [search in DIR/lib and DIR/include]]],
 599   [
 600     case "$withval" in
 601       no)
 602         AC_MSG_RESULT(no)
 603         ;;
 604       *)
 605         AC_MSG_RESULT(yes)
 606
 607         if test -d "$withval/include"; then
 608           CFLAGS="$CFLAGS -I$withval/include"
 609         fi
 610         if test -d "$withval/lib"; then
 611           LDFLAGS="$LDFLAGS -L$withval/lib"
 612         fi
 613
 614         LIBS="-lgmp $LIBS"
 615         ;;
 616     esac
 617
 618     AC_CHECK_LIB(gmp, __gmpz_init,
 619       [
 620         mp_gmp=true
 621         AC_DEFINE([SILC_MP_GMP], [], [GMP])
 622         AC_MSG_RESULT(Using GMP as a MP library.)
 623       ],
 624       [
 625         LIBS="$SAVE_LIBS"
 626         CFLAGS="$SAVE_CFLAGS"
 627         LDFLAGS="$SAVE_LDFLAGS"
 628       ])
 629   ],
 630     AC_MSG_RESULT(no)
 631   )
 632
 633 AM_CONDITIONAL(SILC_MP_GMP, test x$mp_gmp = xtrue)
 634 AM_CONDITIONAL(SILC_MP_SILCMATH, test x$mp_gmp = xfalse)
 635 if test x$mp_gmp = xfalse; then
 636   AC_DEFINE([SILC_MP_SILCMAP], [], [SILCMATH])
 637   AC_MSG_RESULT(Using SILC Math as a MP library.)
 638 fi
 639 #endif SILC_DIST_MATH
 640
 641 # iconv support
 642 #
 643 check_iconv=true
 644 has_iconv=false
 645 SAVE_LIBS="$LIBS"
 646 SAVE_CFLAGS="$CFLAGS"
 647 SAVE_LDFLAGS="$LDFLAGS"
 648 SAVE_CPPFLAGS="$CPPFLAGS"
 649 AC_MSG_CHECKING(whether to implicit search for libiconv)
 650 AC_ARG_WITH(iconv,
 651   [[  --with-iconv[=DIR]      use libiconv [search in DIR/include and DIR/lib]]],
 652   [
 653     case "${withval}" in
 654       no)
 655         AC_MSG_RESULT(no)
 656         AC_CHECK_HEADERS(iconv.h,
 657           [
 658             AC_CHECK_FUNC(iconv, has_iconv=true)
 659           ])
 660         check_iconv=false
 661         ;;
 662       *)
 663         AC_MSG_RESULT(yes)
 664         if test -d $withval/include; then
 665           CPPFLAGS="$CPPFLAGS -I$withval/include"
 666           CFLAGS="$CFLAGS -I$withval/include"
 667         fi
 668         if test -d $withval/lib; then
 669           LDFLAGS="$LDFLAGS -L$withval/lib"
 670         fi
 671         ;;
 672     esac
 673   ],
 674   [
 675     AC_MSG_RESULT(no)
 676     AC_CHECK_HEADERS(iconv.h,
 677       [
 678         AC_CHECK_FUNCS(iconv,
 679           [
 680             has_iconv=true
 681             check_iconv=false
 682           ])
 683       ])
 684   ])
 685
 686 if test x$check_iconv = xtrue; then
 687   AC_MSG_RESULT(Searching for iconv...)
 688
 689   # XXX
 690   unset ac_cv_header__iconv_h_ ac_cv_header_iconv_h || true
 691
 692   AC_CHECK_HEADERS(iconv.h,
 693     [
 694       LIBS="$LIBS -liconv"
 695       AC_MSG_CHECKING(for iconv in -liconv)
 696       AC_TRY_LINK(
 697         [
 698           #include <stdlib.h>
 699           #include <iconv.h>
 700         ],
 701         [
 702           iconv_t cd = iconv_open("", "");
 703           iconv(cd, NULL, NULL, NULL, NULL);
 704           iconv_close(cd);
 705         ],
 706         [
 707           echo "yes"
 708           AC_DEFINE([HAVE_ICONV], [], [Define if you have the iconv() function.])
 709           has_iconv=true
 710           check_iconv=false
 711         ],
 712         [
 713           echo "no"
 714           LIBS="$SAVE_LIBS"
 715           CFLAGS="$SAVE_CFLAGS"
 716           LDFLAGS="$SAVE_LDFLAGS"
 717           CPPFLAGS="$SAVE_CPPFLAGS"
 718         ])
 719      ])
 720 fi
 721
 722 if test x$check_iconv = xtrue; then
 723   # search for iconv library..
 724   SAVE_LIBS="$LIBS"
 725   SAVE_CFLAGS="$CFLAGS"
 726   SAVE_LDFLAGS="$LDFLAGS"
 727   SAVE_CPPFLAGS="$CPPFLAGS"
 728
 729   for dir in `echo "/usr/local /usr/pkg /usr/contrib"`; do
 730     if test x$has_iconv = xfalse; then
 731       AC_MSG_RESULT(searching in $dir...)
 732
 733       if test -d $dir/include; then
 734         CPPFLAGS="$CPPFLAGS -I$dir/include"
 735         CFLAGS="$CFLAGS -I$dir/include"
 736       fi
 737       if test -d $dir/lib; then
 738         LDFLAGS="$LDFLAGS -L$dir/lib"
 739       fi
 740
 741       # XXX
 742       unset ac_cv_header__iconv_h_ ac_cv_header_iconv_h || true
 743
 744       AC_CHECK_HEADERS(iconv.h,
 745         [
 746           LIBS="$LIBS -liconv"
 747           AC_MSG_CHECKING(for iconv in -liconv)
 748           AC_TRY_LINK(
 749             [
 750               #include <stdlib.h>
 751               #include <iconv.h>
 752             ],
 753             [
 754               iconv_t cd = iconv_open("", "");
 755               iconv(cd, NULL, NULL, NULL, NULL);
 756               iconv_close(cd);
 757             ],
 758             [
 759               echo "yes"
 760               has_iconv=true
 761               AC_DEFINE([HAVE_ICONV], [], [Define if you have the iconv() function.])
 762             ],
 763             [
 764               echo "no"
 765               has_iconv=false
 766
 767               LIBS="$SAVE_LIBS"
 768               CFLAGS="$SAVE_CFLAGS"
 769               LDFLAGS="$SAVE_LDFLAGS"
 770               CPPFLAGS="$SAVE_CPPFLAGS"
 771             ])
 772          ],
 773          [
 774            CFLAGS="$SAVE_CFLAGS"
 775            LDFLAGS="$SAVE_LDFLAGS"
 776            CPPFLAGS="$SAVE_CPPFLAGS"
 777          ])
 778       fi
 779     done
 780 fi
 781
 782 if test x$has_iconv = xtrue; then
 783   # (1) Some implementations of iconv won't convert from UTF-8 to UTF-8.
 784   # (2) In glibc-2.1.2 and earlier there is a bug that messes up ob and
 785   #     obl when args 2 and 3 are 0 (fixed in glibc-2.1.3).
 786   #
 787   AC_CACHE_CHECK([whether this iconv is good enough], ac_iconv_good,
 788     AC_TRY_RUN(
 789       [
 790         #include <iconv.h>
 791         int main() {
 792           iconv_t cd;
 793         changequote(, )dnl
 794           char buf[4];
 795         changequote([, ])dnl
 796           char *ob;
 797           size_t obl;
 798           ob = buf, obl = sizeof(buf);
 799           return ((cd = iconv_open("UTF-8", "UTF-8")) != (iconv_t)(-1) &&
 800                  (iconv(cd, 0, 0, &ob, &obl) ||
 801                  !(ob == buf && obl == sizeof(buf)) ||
 802                  iconv_close(cd)));
 803         }
 804       ],
 805       [
 806         ac_iconv_good=yes
 807       ],
 808       [
 809         ac_iconv_good=no
 810       ],
 811       [
 812         ac_iconv_good=yes
 813       ])
 814     )
 815
 816   if test x$ac_iconv_good = xno; then
 817     AC_MSG_RESULT(Try using libiconv instead.)
 818   fi
 819 fi
 820
 821 # POSIX threads support
 822 #
 823 AC_MSG_CHECKING(whether to search for POSIX threads)
 824 AC_ARG_WITH(pthreads,
 825   [[  --with-pthreads[=DIR]   use POSIX threads [search in DIR/include and DIR/lib]]],
 826   [
 827     case "${withval}" in
 828       no)
 829         check_threads=false
 830         ;;
 831       *)
 832         if test -d $withval/include; then
 833           CPPFLAGS="$CPPFLAGS -I$withval/include"
 834           CFLAGS="$CFLAGS -I$withval/include"
 835         fi
 836         if test -d $withval/lib; then
 837           LDFLAGS="$LDFLAGS -L$withval/lib"
 838         fi
 839
 840         check_threads=true
 841         ;;
 842     esac
 843   ])
 844
 845 if test x$check_threads = xtrue; then
 846   has_threads=false
 847   SAVE_LIBS="$LIBS"
 848   SAVE_CFLAGS="$CFLAGS"
 849   SAVE_LDFLAGS="$LDFLAGS"
 850   SAVE_CPPFLAGS="$CPPFLAGS"
 851
 852   AC_MSG_RESULT(yes)
 853   AC_CHECK_HEADERS(pthread.h,
 854     [
 855       LIBS="$LIBS -lpthread"
 856       AC_CHECK_LIB(pthread, pthread_attr_init, has_threads=true,
 857         [
 858           # FreeBSD
 859           case "${target}" in
 860             *-*-freebsd*)
 861               LIBS="$SAVE_LIBS -pthread"
 862               AC_CHECK_LIB(c_r, pthread_attr_init, has_threads=true, LIBS="$SAVE_LIBS")
 863               ;;
 864             *)
 865               LIBS="$SAVE_LIBS"
 866               ;;
 867           esac
 868         ])
 869     ],
 870     [
 871       # search for pthread library..
 872       for dir in `echo "/usr/local /usr/pkg /usr/contrib /usr/pkg/pthreads /usr/local/pthreads"`; do
 873         if test x$has_threads = xfalse; then
 874           AC_MSG_RESULT(searching in $dir...)
 875
 876           if test -d $dir/include; then
 877             CPPFLAGS="$CPPFLAGS -I$dir/include"
 878             CFLAGS="$CFLAGS -I$dir/include"
 879           fi
 880           if test -d $dir/lib; then
 881             LDFLAGS="$LDFLAGS -L$dir/lib"
 882           fi
 883
 884           # XXX
 885           unset ac_cv_header__pthread_h_ ac_cv_header_pthread_h || true
 886
 887           AC_CHECK_HEADERS(pthread.h,
 888             [
 889               LIBS="$LIBS -lpthread"
 890               AC_CHECK_LIB(pthread, pthread_attr_init, has_threads=true,
 891                 [
 892                   has_threads=false
 893
 894                   LIBS="$SAVE_LIBS"
 895                   CFLAGS="$SAVE_CFLAGS"
 896                   LDFLAGS="$SAVE_LDFLAGS"
 897                   CPPFLAGS="$SAVE_CPPFLAGS"
 898                 ])
 899             ],
 900             [
 901               CFLAGS="$SAVE_CFLAGS"
 902               LDFLAGS="$SAVE_LDFLAGS"
 903               CPPFLAGS="$SAVE_CPPFLAGS"
 904             ])
 905         fi
 906       done
 907     ])
 908 else
 909   AC_MSG_RESULT(no)
 910   has_threads=false
 911 fi
 912
 913 __SILC_HAVE_PTHREAD=""
 914 AM_CONDITIONAL(SILC_THREADS, test x$has_threads = xtrue)
 915 if test x$has_threads = xtrue; then
 916   CFLAGS="$CFLAGS -D_REENTRANT"
 917
 918   # XXX possibly incomplete
 919   case "${target}" in
 920     *-*-aix*)
 921       CFLAGS="$CFLAGS -D_THREAD_SAFE"
 922       if test x"$GCC" = xyes; then
 923         CFLAGS="$CFLAGS -mthreads"
 924       fi
 925       ;;
 926     *-*-freebsd*)
 927       CFLAGS="$CFLAGS -D_THREAD_SAFE"
 928       ;;
 929     *-*-sysv5uw7*)  # UnixWare 7
 930       if test "$GCC" != "yes"; then
 931         CFLAGS="$CFLAGS -Kthread"
 932       else
 933         CFLAGS="$CFLAGS -pthread"
 934       fi
 935       ;;
 936     *-dg-dgux*)  # DG/UX
 937       CFLAGS="$CFLAGS -D_POSIX4A_DRAFT10_SOURCE"
 938       ;;
 939    esac
 940
 941   AC_CHECK_FUNC(pthread_create)
 942   AC_DEFINE([SILC_HAVE_PTHREAD], [], [HAVE_PTHREAD])
 943   AC_DEFINE([SILC_THREADS], [], [HAVE_THREAD])
 944   __SILC_HAVE_PTHREAD="#define __SILC_HAVE_PTHREAD 1"
 945 fi
 946
 947 # Native WIN32 compilation under cygwin
 948 #
 949 AC_MSG_CHECKING(whether to compile native WIN32 code)
 950 AC_ARG_WITH(win32,
 951   [  --with-win32            compile native WIN32 (MinGW) code (-mno-cygwin)],
 952   [
 953     AC_MSG_RESULT(yes)
 954     AC_DEFINE([SILC_WIN32], [], [SILC_WIN32])
 955     win32_support=true
 956     CFLAGS="-mno-cygwin $CFLAGS"
 957     LIBS="$LIBS -lwsock32"
 958   ],
 959   [
 960     AC_MSG_RESULT(no)
 961   ])
 962 AM_CONDITIONAL(SILC_WIN32, test x$win32_support = xtrue)
 963
 964 # Native EPOC support (disabled by default)
 965 #
 966 AM_CONDITIONAL(SILC_EPOC, test xfalse = xtrue)
 967
 968 # Native BeOS support (disabled by default)
 969 #
 970 AM_CONDITIONAL(SILC_BEOS, test xfalse = xtrue)
 971
 972 # Native OS2 support (disabled by default)
 973 #
 974 AM_CONDITIONAL(SILC_OS2, test xfalse = xtrue)
 975
 976 #ifdef SILC_DIST_TOOLKIT
 977 # --without-irssi
 978 #
 979 without_irssi=false
 980 AC_MSG_CHECKING(whether to compile Irssi SILC Client)
 981 AC_ARG_WITH(irssi,
 982   [  --without-irssi         compile without Irssi SILC Client],
 983   [
 984     AC_MSG_RESULT(no)
 985     without_irssi=true
 986   ],
 987   [
 988     AC_MSG_RESULT(yes)
 989   ])
 990
 991 # --without-silcd
 992 #
 993 without_silcd=false
 994 AC_MSG_CHECKING(whether to compile SILC Server)
 995 AC_ARG_WITH(silcd,
 996   [  --without-silcd         compile without SILC Server],
 997   [
 998     AC_MSG_RESULT(no)
 999     without_silcd=true
1000   ],
1001   [
1002     AC_MSG_RESULT(yes)
1003   ])
1004 #endif SILC_DIST_TOOLKIT
1005
1006 libtoolfix=true
1007 AC_MSG_CHECKING(whether to do libtoolfix)
1008 AC_ARG_WITH(libtoolfix,
1009   [  --without-libtoolfix    Do not fix libtool, for package builders],
1010   [
1011     AC_MSG_RESULT(no)
1012     libtoolfix=false
1013   ],
1014   [
1015     AC_MSG_RESULT(yes)
1016   ])
1017
1018 AC_SUBST(ETCDIR)
1019 AC_DEFINE_UNQUOTED([SILC_ETCDIR], "$ETCDIR", [SILC_ETCDIR])
1020 #endif SILC_DIST_COMPILER
1021
1022 ##
1023 ##  Misc
1024 ##
1025
1026 # Make enable-shared aware
1027 AM_CONDITIONAL(SILC_ENABLE_SHARED, test "$enable_shared" = yes)
1028
1029 SILC_TOP_SRCDIR=`pwd`
1030
1031 # Included configure scripts
1032 AD_INCLUDE_CONFIGURE
1033
1034 #ifdef SILC_DIST_COMPILER
1035 #
1036 # Substitutions
1037 #
1038 AC_SUBST(SILC_TOP_SRCDIR)
1039 AC_SUBST(LIBS)
1040 AC_SUBST(SILC_LIB_INCLUDES)
1041 AC_SUBST(__SILC_HAVE_PTHREAD)
1042 AC_SUBST(__SILC_HAVE_SIM)
1043 AC_SUBST(__SILC_ENABLE_DEBUG)
1044
1045 #
1046 # Fix the libtool to support run-time configuration.  This allows us
1047 # to in run-time specify when to compile shared/static libraries without
1048 # need to reconfigure the entire libtool.
1049 #
1050 if test x$libtoolfix = xtrue; then
1051   ./libtoolfix $SILC_TOP_SRCDIR/ltmain.sh
1052 fi
1053 AM_CONDITIONAL(SILC_LIBTOOLFIX, test x$libtoolfix = xtrue)
1054
1055 INCLUDE_DEFINES_INT="include \$(top_srcdir)/Makefile.defines_int"
1056 AC_SUBST(INCLUDE_DEFINES_INT)
1057
1058 #endif SILC_DIST_COMPILER
1059
1060 #
1061 # Makefile outputs
1062 #
1063 AC_CONFIG_FILES(
1064 Makefile
1065 #ifdef SILC_DIST_DOC
1066 doc/Makefile
1067 #endif SILC_DIST_DOC
1068 #ifdef SILC_DIST_COMPILER
1069 Makefile.defines
1070 Makefile.defines_int
1071 includes/Makefile
1072 includes/silcversion.h
1073 includes/silcincludes.h
1074 #endif SILC_DIST_COMPILER
1075 #ifdef SILC_DIST_APPS
1076 apps/Makefile
1077 #endif SILC_DIST_APPS
1078 )
1079
1080 #ifdef SILC_DIST_TOOLKIT
1081 AC_CONFIG_FILES(
1082 win32/Makefile
1083 win32/libsilc/Makefile
1084 win32/libsilcclient/Makefile
1085 tutorial/Makefile
1086 tutorial/Makefile.defines
1087 tutorial/Makefile.defines_int
1088 )
1089 #endif SILC_DIST_TOOLKIT
1090
1091 AC_OUTPUT
1092
1093 #ifdef SILC_DIST_COMPILER
1094 s_bindir=`eval echo $bindir`;s_bindir=`eval echo $s_bindir`
1095 s_sbindir=`eval echo $sbindir`;s_sbindir=`eval echo $s_sbindir`
1096 s_mandir=`eval echo $mandir`;s_mandir=`eval echo $s_mandir`
1097 s_includedir=`eval echo $includedir`;s_includedir=`eval echo $s_includedir`
1098
1099 echo ""
1100 echo "$PACKAGE Configuration Summary:"
1101 echo "---------------------------"
1102 echo " Target host ...................: $target"
1103 echo " Compiler ......................: $CC"
1104 echo " CFLAGS ........................: $CFLAGS"
1105 echo " LDFLAGS .......................: $LDFLAGS"
1106 echo " LIBS ..........................: $LIBS"
1107 echo ""
1108 echo " Installation prefix ...........: $prefix"
1109 echo " bin directory .................: $s_bindir"
1110 echo " sbin directory ................: $s_sbindir"
1111 echo " etc directory .................: $ETCDIR"
1112 echo " man directory .................: $s_mandir"
1113 echo " doc directory .................: $DOCDIR"
1114 #ifdef SILC_DIST_CLIENT
1115 echo " help directory ................: $HELPDIR"
1116 #endif SILC_DIST_CLIENT
1117 #ifdef SILC_DIST_SERVER
1118 echo " logs directory ................: $LOGSDIR"
1119 #endif SILC_DIST_SERVER
1120 #ifdef SILC_DIST_SIM
1121 echo " SIM directory .................: $MODULESDIR"
1122 #endif SILC_DIST_SIM
1123 #ifdef SILC_DIST_INCLUDES
1124 echo " include directory .............: $s_includedir"
1125 #endif SILC_DIST_INCLUDES
1126 echo ""
1127
1128 #ifdef SILC_DIST_TOOLKIT
1129 if test x$without_irssi = xtrue; then
1130   irssi="no"
1131 fi
1132 if test x$without_silcd = xtrue; then
1133   silcd="no"
1134 fi
1135 #endif SILC_DIST_TOOLKIT
1136
1137 #ifdef SILC_DIST_CLIENT
1138 echo " Compile SILC Client ...........: $irssi"
1139 #endif SILC_DIST_CLIENT
1140
1141 #ifdef SILC_DIST_SERVER
1142 echo " Compile SILC Server ...........: $silcd"
1143 echo " Server configuration file .....: $summary_silcd_configfile"
1144 echo " Server PID file ...............: $PIDFILE"
1145 #endif SILC_DIST_SERVER
1146
1147 #ifdef SILC_DIST_SIM
1148 if test x$sim_support = xfalse; then
1149   sim_support="no"
1150 else
1151   sim_support="yes"
1152 fi
1153 echo " SIM support ...................: $sim_support"
1154 #endif SILC_DIST_SIM
1155
1156 echo " IPv6 support ..................: $summary_ipv6"
1157
1158 if test x$has_iconv = xfalse; then
1159   iconv_support="no"
1160 else
1161   iconv_support="yes"
1162 fi
1163 echo " Iconv support .................: $iconv_support"
1164
1165 if test x$want_asm = xfalse; then
1166   summary_asm="no"
1167 else
1168   summary_asm="yes"
1169 fi
1170 echo " Assembler optimizations .......: $summary_asm"
1171
1172 #ifdef SILC_DIST_MATH
1173 if test x$mp_gmp = xtrue; then
1174   echo " Arithmetic library ............: GMP"
1175 fi
1176 #endif SILC_DIST_MATH
1177
1178 threads="no"
1179 if test x$has_threads = xtrue; then
1180   threads="yes"
1181 fi
1182 echo " Multi-threads support .........: $threads"
1183 echo " Debugging enabled .............: $summary_debug"
1184 echo ""
1185 echo "Compile the sources with 'make' or 'gmake' command."
1186 #endif SILC_DIST_COMPILER