configure.ac

   1 dnl $Id: configure.ac 3516 2007-06-10 16:14:03Z jilles $
   2 dnl Process this file with autoconf to produce a configure script.
   3
   4 dnl TODO: clean up all the OpenSSL and shared module checking stuff;
   5 dnl the most major changes have already been made and it looks like
   6 dnl said functions need to be just about as complex as they already are.
   7
   8 AC_PREREQ(2.57)
   9
  10 dnl Sneaky way to get an Id tag into the configure script
  11 AC_COPYRIGHT([$Id: configure.ac 3516 2007-06-10 16:14:03Z jilles $])
  12
  13 AC_INIT([charybdis], [3.5.0-dev])
  14
  15 AC_CONFIG_HEADER(include/setup.h)
  16
  17 AC_PREFIX_DEFAULT($HOME/ircd)
  18
  19 AC_GNU_SOURCE
  20
  21 OLD_CFLAGS="$CFLAGS"
  22 dnl Checks for programs.
  23 AC_PROG_CC
  24 AC_LANG(C)
  25
  26 dnl Make sure autoconf doesn't interfere with cflags -jmallett
  27 CFLAGS="$OLD_CFLAGS"
  28
  29 AC_CONFIG_SUBDIRS(libratbox)
  30
  31 dnl Check for various compilers. -jmallett
  32 dnl But if $CC turns out to be gcc, sure as hell it's, well, gcc. -joshk
  33
  34 if test "$ac_cv_c_compiler_gnu" != yes; then
  35
  36 SGS=no
  37 AC_MSG_CHECKING($CC -version for TenDRA or MIPSpro)
  38 case `$CC -version 2>&1` in
  39 *TenDRA*)
  40         AC_MSG_RESULT([yes, TenDRA])
  41         IRC_CFLAGS=""
  42         CPPFLAGS="$CPPFLAGS -Ylonglong -Yansi -I/usr/include"
  43         SGS=yes
  44         TenDRA=yes
  45 ;;
  46 *MIPSpro*)
  47         AC_MSG_RESULT([yes, MIPSpro])
  48         MIPSpro=yes
  49         SGS=yes
  50 ;;
  51 *)
  52         AC_MSG_RESULT(no)
  53         TenDRA=no
  54         MIPSpro=no
  55 ;;
  56 esac
  57
  58 AC_MSG_CHECKING([$CC -V for Sun Workshop, Forte, HPUX or Tru64 cc])
  59 case `$CC -V 2>&1` in
  60 *Sun*WorkShop* | *Forte*Developer*)
  61         AC_MSG_RESULT(Sun Workshop/Forte)
  62         IRC_CFLAGS="-fast -xinline=dlinkAdd,dlinkAddBefore,dlinkAddTail,dlinkDelete,dlink_list_length,dlink_node,dlinkMoveList,_MyMalloc,_MyRealloc,_MyFree,_DupString"
  63         SunWorkShop=yes
  64         SGS=yes
  65 ;;
  66 *Tru64*)
  67         AC_MSG_RESULT(Tru64 cc)
  68         IRC_CFLAGS="-O2"
  69         CPPFLAGS="-I/usr/local/include"
  70         Tru=yes
  71 ;;
  72 *HP*ANSI*)
  73         AC_MSG_RESULT(HPUX cc)
  74         HPUX=yes
  75         IRC_CFLAGS="+e"
  76 ;;
  77 *)
  78         AC_MSG_RESULT(no)
  79 ;;
  80 esac
  81
  82 fi
  83
  84 AC_MSG_CHECKING([uname -s for Solaris, AIX or HPUX])
  85 OSNAME=`uname -s`
  86 case "$OSNAME" in
  87         HP-UX*)
  88         dnl only do this if we haven't already detected the newer one
  89         dnl and we're not already using gcc
  90
  91                 if test "$HPUX" != yes -a "$ac_cv_c_compiler_gnu" = no; then
  92                         AC_MSG_RESULT(assuming old HPUX with its own cc)
  93                         IRC_CFLAGS="$IRC_CFLAGS +e"
  94                         HPUX=yes
  95                 else
  96                         AC_MSG_RESULT(already using newer HPUX)
  97                 fi
  98         ;;
  99         SunOS*)
 100                 AC_MSG_RESULT(SunOS or Solaris)
 101                 AC_DEFINE(__EXTENSIONS__, 1, [This is needed to use strtok_r on Solaris.])
 102                 SUN=yes
 103         ;;
 104         AIX*)
 105                 AC_MSG_RESULT(AIX - Sorry you poor bastard..really we are)
 106                 IRC_CFLAGS="$IRC_CFLAGS -Wl,-brtl -Wl,-G"
 107         ;;
 108         *)
 109                 AC_MSG_RESULT(no)
 110         ;;
 111 esac
 112
 113 if test "$ac_cv_c_compiler_gnu" = yes; then
 114         AC_MSG_CHECKING(if $CC is Apple GCC)
 115
 116         case `$CC -v 2>&1 | tail -n 1` in
 117         *Apple*)
 118                 AC_MSG_RESULT(yes)
 119                 AppleGCC=yes
 120         ;;
 121         *)
 122                 AC_MSG_RESULT(no)
 123                 AppleGCC=no
 124         ;;
 125         esac
 126
 127         IRC_CFLAGS="$IRC_CFLAGS -O0 -Wall -std=gnu99"
 128 fi
 129
 130 dnl If we support -g, use it!
 131 if test "$ac_cv_prog_cc_g" = yes; then
 132         dnl Tru64 needs -g3 for -O2
 133         if test "$Tru" = yes; then
 134                 IRC_CFLAGS="$IRC_CFLAGS -g3"
 135         else
 136                 IRC_CFLAGS="$IRC_CFLAGS -g"
 137         fi
 138 fi
 139
 140 dnl SVR4 SGS based on what we know about the compiler -jmallett
 141 AC_MSG_CHECKING(if $CC supports the SVR4 SGS interfaces)
 142 if test "$SGS" = "yes"; then
 143         AC_MSG_RESULT(yes)
 144 else
 145         AC_MSG_RESULT(no)
 146 fi
 147
 148 dnl We prefer gcc -MM because it's a lot less bloated
 149 AC_PATH_PROG(MKDEP, mkdep)
 150 AC_PATH_PROG(MAKEDEPEND, makedepend)
 151
 152 AC_MSG_CHECKING(how to generate dependency info)
 153
 154 STDOUT="> .depend"
 155
 156 if test "$ac_cv_c_compiler_gnu" = yes; then
 157         AC_MSG_RESULT(gcc -MM)
 158         MKDEP="$CC -MM"
 159 elif test ! -z "$MKDEP"; then
 160         AC_MSG_RESULT(mkdep)
 161
 162         dnl Tru64's mkdep is very loud
 163         if test -z "$Tru"; then
 164                 STDOUT=""
 165         else
 166                 STDOUT=" 2> /dev/null"
 167         fi
 168 elif test "$SunWorkShop" = yes; then
 169         AC_MSG_RESULT($CC -xM)
 170         MKDEP="$CC -xM"
 171         STDOUT="> .depend 2> /dev/null"
 172 elif test ! -z "$MAKEDEPEND"; then
 173         AC_MSG_RESULT(makedepend)
 174         MKDEP="$MAKEDEPEND -f-"
 175 else
 176         AC_MSG_RESULT([nothing suitable.. forget it!])
 177         MKDEP=":"
 178 fi
 179
 180 AC_SUBST(MKDEP)
 181 AC_SUBST(STDOUT)
 182
 183 dnl check for /dev/null so we can use it to hold evil fd's
 184 AC_MSG_CHECKING([for /dev/null])
 185 if test -c /dev/null ; then
 186         AC_DEFINE(PATH_DEVNULL, "/dev/null", [Path to /dev/null])
 187         AC_MSG_RESULT(yes)
 188 else
 189         AC_DEFINE(PATH_DEVNULL, "devnull.log", [Path to /dev/null])
 190         AC_MSG_RESULT(no - using devnull.log)
 191 fi
 192
 193 dnl jdc -- If CFLAGS is defined, best use it everywhere...
 194 dnl NOTE: jv says it must be added to the *END*, because things like
 195 dnl "gcc -O9 -O2" will result in -O2 getting preference.  How stupid.
 196 if test ! -z "$CFLAGS"; then
 197         IRC_CFLAGS="$IRC_CFLAGS $CFLAGS"
 198 fi
 199
 200 AC_ISC_POSIX
 201 AC_C_INLINE
 202 AC_PROG_GCC_TRADITIONAL
 203 AC_PROG_MAKE_SET
 204 AC_PROG_INSTALL
 205 AC_PATH_PROG(RM, rm)
 206 AC_PATH_PROG(CP, cp)
 207 AC_PATH_PROG(MV, mv)
 208 AC_PATH_PROG(LN, ln)
 209 AC_PATH_PROG(SED, sed)
 210 AC_PATH_PROG(AR, ar)
 211 AC_PATH_PROG(LD, ld)
 212 AC_PATH_PROG(RANLIB, ranlib)
 213 AC_PATH_PROG(TOUCH, touch)
 214
 215 AC_PROG_YACC
 216
 217 dnl AC_PROG_YACC defaults to yacc unconditionally if nothing can be found
 218 if test "$YACC" = "yacc" -a -z "`which $YACC 2>/dev/null`"; then
 219         AC_MSG_ERROR([could not locate a suitable parser generator; install bison, yacc, or byacc])
 220 fi
 221
 222 AC_PROG_LEX
 223
 224 if test "$LEX" = ":"; then
 225         AC_MSG_ERROR([could not locate a suitable lexical generator, install flex or lex.])
 226 fi
 227
 228 AC_ARG_ENABLE([fhs-paths],
 229         [AS_HELP_STRING([--enable-fhs-paths], [Use more FHS-like pathnames (for packagers).])],
 230         [],
 231         [dnl detect if the user appears to want --enable-fhs-paths
 232         AS_IF([test "$libexecdir" = '${exec_prefix}/libexec' && \
 233                 test "$localstatedir" = '${prefix}/var' && \
 234                 test "$libdir" = '${exec_prefix}/lib'],
 235                 [enable_fhs_paths=no],
 236                 [enable_fhs_paths=yes])
 237         ])
 238 dnl use directory structure of cached as default (hack)
 239 AS_IF([test "x$enable_fhs_paths" = "xyes"],
 240         [dnl Avoid name collisions.
 241         pkglibexecdir='${libexecdir}/${PACKAGE_TARNAME}'
 242         rundir=${rundir-'${prefix}/run'}
 243         pkgrundir='${rundir}/${PACKAGE_TARNAME}'
 244         pkglocalstatedir='${localstatedir}/${PACKAGE_TARNAME}'],
 245         [libexecdir='${bindir}'
 246         pkglibexecdir='${libexecdir}'
 247         rundir='${sysconfdir}'
 248         pkgrundir='${rundir}'
 249         localstatedir='${prefix}'
 250         pkglocalstatedir='${sysconfdir}'])
 251 pkglibdir='${libdir}/${PACKAGE_TARNAME}'
 252 AC_SUBST([pkglibdir])
 253 AC_SUBST([rundir])
 254 AC_SUBST([pkgrundir])
 255 AC_SUBST([pkglocalstatedir])
 256 AC_DEFINE_DIR([PKGLOCALSTATEDIR], [pkglocalstatedir], [[Directory in which to store state, such as ban database]])
 257 AC_SUBST([pkglibexecdir])
 258 AC_DEFINE_DIR([PKGLIBEXECDIR], [pkglibexecdir], [Directory where binaries the IRCd itself spawns live])
 259
 260 dnl Checks for header files.
 261 AC_HEADER_STDC
 262
 263 AC_CHECK_HEADERS([crypt.h sys/resource.h sys/param.h errno.h sys/syslog.h stddef.h sys/wait.h wait.h sys/epoll.h sys/uio.h machine/endian.h])
 264
 265 dnl Stuff that the memory manager (imalloc) depends on
 266 dnl ==================================================
 267
 268 AC_C_CONST
 269 if test "$ac_cv_header_machine_endian_h" = "no" ; then
 270     AC_C_BIGENDIAN
 271 fi
 272 AC_TYPE_PID_T
 273 AC_TYPE_SIZE_T
 274 AC_CHECK_SIZEOF(short)
 275 AC_CHECK_SIZEOF(int)
 276 AC_CHECK_SIZEOF(long)
 277 AC_CHECK_SIZEOF(long long)
 278
 279 dnl Networking Functions
 280 dnl ====================
 281
 282 AC_SEARCH_LIBS(socket, socket, , [AC_MSG_ERROR([You have no socket()! Aborting.])])
 283
 284 dnl SunOS/Solaris required libnsl for inet_ntoa()
 285 if test x"$SUN" = xyes; then
 286         AC_SEARCH_LIBS(inet_ntoa, nsl,, [AC_MSG_ERROR([libnsl not found! Aborting.])])
 287 fi
 288
 289 AC_CHECK_TYPE(socklen_t, ,
 290 [AC_DEFINE([socklen_t], [unsigned int],
 291 [If we don't have a real socklen_t, unsigned int is good enough.])],
 292 [#include <sys/types.h>
 293 #include <sys/socket.h>])
 294
 295 AC_ARG_ENABLE(ipv6,
 296 AC_HELP_STRING([--enable-ipv6],[Enable IPv6 support]),[ipv6=$enableval],[ipv6=no])
 297
 298 AC_SEARCH_LIBS(crypt, [crypt descrypt],,)
 299
 300 CRYPT_LIB=$ac_cv_search_crypt
 301
 302 if test "$CRYPT_LIB" = "none required"; then
 303         unset CRYPT_LIB
 304 elif test "$CRYPT_LIB" = no; then
 305         unset CRYPT_LIB
 306 fi
 307
 308 AC_SUBST(CRYPT_LIB)
 309
 310 if test "$ac_cv_header_sys_wait_h" = yes -o "$ac_cv_header_wait_h" = yes; then
 311         VICONF=viconf
 312         dnl We need one of the above to build viconf. Just a sanity check,
 313         dnl we don't want to stop people from building the rest of ircd
 314         dnl just because they can't build viconf.
 315 else
 316         VICONF=""
 317 fi
 318
 319 AC_SUBST(VICONF)
 320
 321 dnl See whether we can include both string.h and strings.h.
 322 AC_CACHE_CHECK([whether string.h and strings.h may both be included],
 323 gcc_cv_header_string,
 324 [
 325         AC_COMPILE_IFELSE(
 326         [#include <string.h>
 327         #include <strings.h>],
 328         [gcc_cv_header_string=yes],
 329         [gcc_cv_header_string=no])
 330 ])
 331
 332 if test "$gcc_cv_header_string" = "yes"; then
 333         AC_DEFINE(STRING_WITH_STRINGS, 1, [Define to 1 if string.h may be included along with strings.h])
 334 fi
 335
 336 AC_C_BIGENDIAN
 337
 338 dnl Check for stdarg.h - if we can't find it, halt configure
 339 AC_CHECK_HEADER(stdarg.h, , [AC_MSG_ERROR([** stdarg.h could not be found - charybdis will not compile without it **])])
 340
 341 dnl Checks for the existence of strlcat, strlcpy, basename...
 342 dnl This more reliable test only works with gcc though.
 343
 344 if test "$ac_cv_c_compiler_gnu" = yes; then
 345
 346 AC_MSG_CHECKING(for strlcpy)
 347 save_CFLAGS=$CFLAGS
 348 CFLAGS="$CFLAGS -Wimplicit -Werror"
 349
 350 AC_LINK_IFELSE(
 351         [AC_LANG_PROGRAM(
 352                 [[#include <string.h>
 353                 #include <stdlib.h>]],
 354                 [[char *a = malloc(6);
 355                 strlcpy(a, "hello", 6);]]
 356         )],
 357         [AC_MSG_RESULT(yes)
 358         AC_DEFINE(HAVE_STRLCPY, 1, [Define if strlcpy is available (most BSDs.)])],
 359         [AC_MSG_RESULT(no)]
 360 )
 361
 362 AC_MSG_CHECKING(for strlcat)
 363 AC_LINK_IFELSE(
 364         [AC_LANG_PROGRAM(
 365                 [[#include <string.h>
 366                 #include <stdlib.h>]],
 367                 [[char *a = malloc(6);
 368                 a[0] = '\0';
 369                 strlcat(a, "hello", 6);]]
 370         )],
 371         [AC_MSG_RESULT(yes)
 372         AC_DEFINE(HAVE_STRLCAT, 1, [Define if strlcat is available (most BSDs.)])],
 373         [AC_MSG_RESULT(no)]
 374 )
 375
 376 CFLAGS=$save_CFLAGS
 377
 378 else
 379
 380 dnl Better than nothing. The more complicated test above probably fixes powerpc,
 381 dnl so who cares.
 382
 383 AC_CHECK_FUNCS([strlcat strlcpy])
 384
 385 fi
 386
 387 AC_CHECK_TYPE([u_int32_t], [],
 388 [
 389         AC_CHECK_TYPE([uint32_t],
 390         [
 391                 AC_DEFINE(u_int32_t, [uint32_t], [If system does not define u_int32_t, define a reasonable substitute.])
 392         ],
 393         [
 394                 AC_MSG_WARN([system has no u_int32_t or uint32_t, default to unsigned long int])
 395                 AC_DEFINE(u_int32_t, [unsigned long int], [If system does not define u_int32_t, define to unsigned long int here.])
 396         ])
 397 ])
 398
 399 AC_CHECK_TYPE([u_int16_t], [],
 400 [
 401         AC_CHECK_TYPE([uint16_t],
 402         [
 403                 AC_DEFINE(u_int16_t, [uint16_t], [If system does not define u_int16_t, define a usable substitute])
 404         ],
 405         [
 406                 AC_MSG_WARN([system has no u_int16_t or uint16_t, default to unsigned short int])
 407                 AC_DEFINE(u_int16_t, [unsigned short int], [If system does not define u_int16_t, define a usable substitute.])
 408         ])
 409 ])
 410
 411 AC_CHECK_TYPE([in_port_t], [],
 412 [AC_DEFINE(in_port_t, [u_int16_t], [If system does not define in_port_t, define it to what it should be.])],
 413 [[#include <sys/types.h>
 414 #include <netinet/in.h>]])
 415
 416 AC_CHECK_TYPE([sa_family_t], [],
 417 [AC_DEFINE(sa_family_t, [u_int16_t], [If system does not define sa_family_t, define it here.])],
 418 [[#include <sys/types.h>
 419 #include <sys/socket.h>]])
 420
 421 AC_CHECK_TYPES([uintptr_t])
 422
 423 dnl check for various functions...
 424 AC_CHECK_FUNCS([socketpair vsnprintf mmap gettimeofday strdup strndup ])
 425
 426 AC_FUNC_ALLOCA
 427
 428 dnl Specialized functions checks
 429 dnl ============================
 430
 431 dnl check for nanosleep
 432 AC_CHECK_FUNC(nanosleep,,[AC_CHECK_LIB(rt,nanosleep,
 433                  LIBS="${LIBS} -lrt",
 434                  [AC_CHECK_LIB(posix4,nanosleep, LIBS="${LIBS} -lposix4"
 435                  )])])
 436 if test x$ac_cv_func_nanosleep = xno && test x$ac_cv_lib_posix4_nanosleep = xno  && test x$ac_cv_lib_rt_nanosleep = xno
 437 then
 438          AC_MSG_RESULT("nanosleep not found..using select for delay")
 439 else
 440          AC_DEFINE([HAVE_NANOSLEEP], 1, [Define if nanosleep exists])
 441 fi
 442
 443 dnl OpenSSL support
 444 AC_MSG_CHECKING(for OpenSSL)
 445 AC_ARG_ENABLE(openssl,
 446 [AC_HELP_STRING([--enable-openssl[=DIR]],[Enable OpenSSL support (DIR optional).])
 447 AC_HELP_STRING([--disable-openssl],[Disable OpenSSL support.])],
 448 [cf_enable_openssl=$enableval],
 449 [cf_enable_openssl="auto"])
 450
 451 if test "$cf_enable_openssl" != "no" ; then
 452         cf_openssl_basedir=""
 453         if test "$cf_enable_openssl" != "auto" &&
 454         test "$cf_enable_openssl" != "yes" ; then
 455                 dnl Support for --enable-openssl=/some/place
 456                 cf_openssl_basedir="`echo ${cf_enable_openssl} | sed 's/\/$//'`"
 457         else
 458         dnl Do the auto-probe here.  Check some common directory paths.
 459                 for dirs in /usr/local/ssl /usr/pkg /usr/local \
 460                 /usr/local/openssl ; do
 461                         if test -f "${dirs}/include/openssl/opensslv.h" ; then
 462                                 cf_openssl_basedir="${dirs}"
 463                         break
 464                         fi
 465                 done
 466                 unset dirs
 467         fi
 468         dnl Now check cf_openssl_found to see if we found anything.
 469         if test ! -z "$cf_openssl_basedir"; then
 470                 if test -f "${cf_openssl_basedir}/include/openssl/opensslv.h" ; then
 471                         SSL_INCLUDES="-I${cf_openssl_basedir}/include"
 472                         SSL_LIBS="-L${cf_openssl_basedir}/lib"
 473                 else
 474                 dnl OpenSSL wasn't found in the directory specified.  Naughty
 475                 dnl administrator...
 476                 cf_openssl_basedir=""
 477                 fi
 478         else
 479         dnl Check for stock FreeBSD 4.x and 5.x systems, since their files
 480         dnl are in /usr/include and /usr/lib.  In this case, we don't want to
 481         dnl change INCLUDES or LIBS, but still want to enable OpenSSL.
 482         dnl We can't do this check above, because some people want two versions
 483         dnl of OpenSSL installed (stock FreeBSD 4.x/5.x and /usr/local/ssl)
 484         dnl and they want /usr/local/ssl to have preference.
 485                 if test -f "/usr/include/openssl/opensslv.h" ; then
 486                         cf_openssl_basedir="/usr"
 487                 fi
 488         fi
 489
 490         dnl If we have a basedir defined, then everything is okay.  Otherwise,
 491         dnl we have a problem.
 492         if test ! -z "$cf_openssl_basedir"; then
 493                 AC_MSG_RESULT($cf_openssl_basedir)
 494                 cf_enable_openssl="yes"
 495         else
 496                 AC_MSG_RESULT([not found. Specify a correct path?])
 497                 cf_enable_openssl="no"
 498         fi
 499         unset cf_openssl_basedir
 500 else
 501         dnl If --disable-openssl was specified
 502         AC_MSG_RESULT(disabled)
 503 fi
 504
 505 save_CPPFLAGS="$CPPFLAGS"
 506 CPPFLAGS="$CPPFLAGS $SSL_INCLUDES"
 507 save_LIBS="$LIBS"
 508 LIBS="$LIBS $SSL_LIBS"
 509 if test "$cf_enable_openssl" != no; then
 510         dnl Check OpenSSL version (must be 0.9.6 or above!)
 511         AC_MSG_CHECKING(for OpenSSL 0.9.6 or above)
 512         AC_RUN_IFELSE(
 513                 AC_LANG_PROGRAM(
 514                 [#include <openssl/opensslv.h>
 515                 #include <stdlib.h>],
 516                 [[if ( OPENSSL_VERSION_NUMBER >= 0x00906000)
 517                 exit(0); else exit(1);]]),
 518         cf_openssl_version_ok=yes,
 519         cf_openssl_version_ok=no,
 520         cf_openssl_version_ok=no)
 521
 522         if test "$cf_openssl_version_ok" = yes; then
 523                 AC_MSG_RESULT(found)
 524
 525                 dnl Work around pmake/gmake conditional incompatibilities
 526                 AC_SUBST(ENCSPEED, encspeed)
 527
 528                 dnl Do all the HAVE_LIBCRYPTO magic -- and check for ciphers
 529                 CPPFLAGS="$CPPFLAGS $SSL_LIBS"
 530                 AC_CHECK_LIB(crypto, RSA_free)
 531                 SSL_LIBS="$SSL_LIBS -lcrypto"
 532                 SSL_SRCS_ENABLE='$(SSL_SRCS)'
 533         else
 534                 AC_MSG_RESULT(no - OpenSSL support disabled)
 535         fi
 536 fi
 537
 538 CPPFLAGS="$save_CPPFLAGS"
 539 LIBS="$save_LIBS"
 540
 541 dnl End OpenSSL detection
 542
 543
 544 dnl Specialized functions and libraries
 545 dnl ===================================
 546
 547 AC_ARG_WITH(zlib-path,
 548 AC_HELP_STRING([--with-zlib-path=DIR],[Path to libz.so for ziplinks support.]),
 549 [LIBS="$LIBS -L$withval"],)
 550
 551 AC_ARG_ENABLE(zlib,
 552 AC_HELP_STRING([--disable-zlib],[Disable ziplinks support]),
 553 [zlib=$enableval],[zlib=yes])
 554
 555 if test "$zlib" = yes; then
 556
 557 AC_CHECK_HEADER(zlib.h, [
 558         AC_CHECK_LIB(z, zlibVersion,
 559         [
 560                 AC_SUBST(ZLIB_LD, -lz)
 561                 AC_DEFINE(HAVE_LIBZ, 1, [Define to 1 if zlib (-lz) is available.])
 562         ], zlib=no)
 563 ], zlib=no)
 564
 565 fi
 566
 567 dnl IO Loop Selection
 568 dnl =================
 569
 570 AC_ARG_ENABLE(ports, AC_HELP_STRING([--enable-ports],[Force solaris I/O ports subsystem usage.]),
 571 [ if test $enableval = yes; then
 572         SELECT_TYPE_EXPLICIT="ports"
 573   else
 574         use_ports=no
 575   fi
 576 ],)
 577
 578 AC_ARG_ENABLE(poll, AC_HELP_STRING([--enable-poll],[Force poll() usage.]),
 579 [ if test $enableval = yes; then
 580         SELECT_TYPE_EXPLICIT="poll"
 581   else
 582         use_poll=no
 583   fi
 584 ],)
 585
 586 AC_ARG_ENABLE(select, AC_HELP_STRING([--enable-select],[Force select() usage.]),
 587 [ if test $enableval = yes; then
 588         SELECT_TYPE_EXPLICIT="select"
 589   else
 590         use_select=no
 591   fi
 592 ],)
 593
 594 AC_ARG_ENABLE(kqueue, AC_HELP_STRING([--enable-kqueue],[Force kqueue() usage.]),
 595 [ if test $enableval = yes; then
 596         SELECT_TYPE_EXPLICIT="kqueue"
 597   else
 598         use_kqueue=no
 599   fi
 600 ],)
 601
 602 AC_ARG_ENABLE(epoll, AC_HELP_STRING([--enable-epoll],[Force sys_epoll usage (Linux only).]),
 603 [ if test $enableval = yes; then
 604         SELECT_TYPE_EXPLICIT="epoll"
 605         AC_CHECK_FUNCS(epoll_ctl, [haveepoll=yes], [haveepoll=no])
 606   else
 607         use_epoll=no
 608   fi
 609 ],)
 610
 611 dnl **********************************************************************
 612 dnl Check for --with-confdir [deprecated, use --sysconfdir instead]
 613 dnl **********************************************************************
 614
 615 AC_ARG_WITH([confdir],
 616         [AC_HELP_STRING([--with-confdir=DIR],
 617                [Directory to install config files [deprecated, use --sysconfdir instead].])],
 618         [ sysconfdir=`echo $withval | sed 's/\/$//'` ],
 619         [ confdir='${sysconfdir}' ])
 620 AC_DEFINE_DIR([ETC_DIR], [sysconfdir], [Prefix where config files are installed.])
 621
 622 dnl **********************************************************************
 623 dnl Check for --with-logdir
 624 dnl **********************************************************************
 625
 626 AC_MSG_CHECKING([whether to modify logdir])
 627 AC_ARG_WITH(logdir,
 628 AC_HELP_STRING([--with-logdir=DIR],
 629                [Directory where to write logfiles.]),
 630                [ logdir=`echo $withval | sed 's/\/$//'`
 631                  AC_MSG_RESULT(yes)],
 632                [ AS_IF([test "x$enable_fhs_paths" = "xyes"],
 633                         [logdir='${localstatedir}/log/${PACKAGE_TARNAME}'],
 634                         [logdir='${prefix}/logs'])
 635                  AC_MSG_RESULT(no)])
 636 AC_DEFINE_DIR([LOG_DIR], [logdir], [Prefix where to write logfiles.])
 637 AC_SUBST_DIR([logdir])
 638
 639 dnl **********************************************************************
 640 dnl Check for --with-helpdir
 641 dnl **********************************************************************
 642
 643 AC_MSG_CHECKING([whether to modify helpdir])
 644 AC_ARG_WITH(helpdir,
 645 AC_HELP_STRING([--with-helpdir=DIR],
 646                [Directory to install help files.]),
 647                [ helpdir=`echo $withval | sed 's/\/$//'`
 648                  AC_MSG_RESULT(yes) ],
 649                [ AS_IF([test "x$enable_fhs_paths" = "xyes"],
 650                         [helpdir='${datadir}/${PACKAGE_TARNAME}/help'],
 651                         [helpdir='${prefix}/help'])
 652                  AC_MSG_RESULT(no) ])
 653 AC_DEFINE_DIR([HELP_DIR], [helpdir], [Prefix where help files are installed.])
 654 AC_SUBST_DIR([helpdir])
 655
 656 dnl **********************************************************************
 657 dnl Check for --with-moduledir
 658 dnl **********************************************************************
 659
 660 AC_MSG_CHECKING([whether to modify moduledir])
 661 AC_ARG_WITH(moduledir,
 662         [AC_HELP_STRING([--with-moduledir=DIR],
 663                [Directory to install modules.])],
 664                [ moduledir=`echo $withval | sed 's/\/$//'`
 665                  AC_MSG_RESULT(yes)],
 666                [ AS_IF([test "x$enable_fhs_paths" = "xyes"],
 667                         [moduledir='${pkglibdir}/modules'],
 668                         [moduledir='${prefix}/modules'])
 669                  AC_MSG_RESULT(no)
 670                 ])
 671 AC_DEFINE_DIR(MODULE_DIR, moduledir, [Prefix where modules are installed.])
 672 AC_SUBST_DIR([moduledir])
 673
 674 dnl Check for --with-rundir
 675
 676 AC_MSG_CHECKING([whether or modify rundir])
 677 AC_ARG_WITH([rundir],
 678         [AC_HELP_STRING([--with-rundir=DIR],
 679                 [Directory in which to store pidfile.])],
 680         [AC_MSG_RESULT([yes])
 681         rundir=`echo $withval | sed 's/\/$//'`],
 682         [AC_MSG_RESULT([no])
 683         AS_IF([test "x$enable_fhs_paths" = "xyes"],
 684                 [rundir='${prefix}/run'],
 685                 [rundir='${sysconfdir}'])])
 686 AC_SUBST([rundir])
 687 AC_DEFINE_DIR([PKGRUNDIR], [pkgrundir], [Directory to store pidfile in.])
 688
 689 dnl Installed utility program prefixes (does not affect binaries
 690 dnl installed into pkglibexecdir)
 691 AC_MSG_CHECKING([for program prefix])
 692 AC_ARG_WITH([program-prefix],
 693         [AS_HELP_STRING([--with-program-prefix=], [If set, programs installed into PATH will be installed with names prefixed by this prefix.])],
 694         [test "x$with_program_prefix" = "xno" && with_program_prefix=],
 695         [with_program_prefix=])
 696 AC_MSG_RESULT(["$with_program_prefix"])
 697 PROGRAM_PREFIX="$with_program_prefix"
 698 AC_SUBST([PROGRAM_PREFIX])
 699 AC_DEFINE_UNQUOTED([PROGRAM_PREFIX], ["$with_program_prefix"], [String with which all programs intended to be in PATH are prefixed.])
 700
 701 dnl **********************************************************************
 702 dnl Branding
 703 dnl **********************************************************************
 704
 705 AC_MSG_CHECKING([whether custom branding is requested])
 706 AC_ARG_WITH(custom-branding,
 707 AC_HELP_STRING([--with-custom-branding=NAME],
 708                [Custom branding name.]),
 709                [BRANDING_NAME=$withval
 710                 AC_MSG_RESULT([yes])],
 711                [BRANDING_NAME=$PACKAGE_NAME
 712                 AC_MSG_RESULT([no])]
 713 )
 714
 715 AC_MSG_CHECKING([whether a custom version is requested])
 716 AC_ARG_WITH(custom-version,
 717 AC_HELP_STRING([--with-custom-version=NAME],
 718                [Custom version branding.]),
 719                [BRANDING_VERSION=$withval
 720                 AC_MSG_RESULT([yes])],
 721                [BRANDING_VERSION=$PACKAGE_VERSION
 722                 AC_MSG_RESULT([no])]
 723 )
 724
 725 AC_DEFINE_UNQUOTED(BRANDING_NAME, ["$BRANDING_NAME"], [Custom branding name.])
 726 AC_DEFINE_UNQUOTED(BRANDING_VERSION, ["$BRANDING_VERSION"], [Custom branding name.])
 727
 728 if test "x$BRANDING_NAME" != "x$PACKAGE_NAME"; then
 729         AC_DEFINE(CUSTOM_BRANDING, 1, [Define if custom branding is enabled.])
 730 fi
 731
 732 if test ! -z "$SELECT_TYPE_EXPLICIT"; then
 733         SELECT_TYPE="$SELECT_TYPE_EXPLICIT";
 734         echo "Forcing $SELECT_TYPE to be enabled"
 735 else
 736
 737 if test ! "x$use_ports" = "xno"; then
 738         AC_CHECK_FUNCS(port_getn, [haveports=yes], [haveports=no])
 739         if test "x$haveports" = "xyes" ; then
 740                 SELECT_TYPE="ports"
 741         fi
 742 fi
 743
 744 if test ! "x$use_select" = "xno"; then
 745         AC_CHECK_FUNCS(select, [haveselect=yes], [haveselect=no])
 746         if test "x$haveselect" = "xyes" ; then
 747                 SELECT_TYPE="select"
 748         fi
 749 fi
 750
 751 if test ! "x$use_poll" = "xno"; then
 752         AC_CHECK_FUNCS(poll, [havepoll=yes], [havepoll=no])
 753         if test "x$havepoll" = "xyes" ; then
 754                 SELECT_TYPE="poll"
 755         fi
 756 fi
 757
 758 if test ! "x$use_kqueue" = "xno"; then
 759         AC_CHECK_FUNCS(kevent, [havekqueue=yes], [havekqueue=no])
 760         if test "x$havekqueue" = "xyes" ; then
 761                 SELECT_TYPE="kqueue"
 762         fi
 763 fi
 764
 765 if test ! "x$use_epoll" = "xno"; then
 766         AC_CHECK_FUNCS(epoll_ctl, [haveepoll=yes], [haveepoll=no])
 767         if test "x$ac_cv_header_sys_epoll_h" = "xyes"; then
 768                 if test "x$haveepoll" = "xyes" ; then
 769                         AC_MSG_CHECKING(for epoll support in kernel)
 770                         AC_TRY_RUN(
 771 #include <stdint.h>
 772 #include <sys/param.h>
 773 #include <sys/types.h>
 774 #include <sys/epoll.h>
 775 #include <sys/syscall.h>
 776 #include <unistd.h>
 777
 778 int
 779 main(int argc, char **argv)
 780 {
 781         int epfd;
 782
 783         epfd = epoll_create(256);
 784         return (epfd == -1 ? 1 : 0);
 785 }, [AC_MSG_RESULT(yes)
 786             AC_DEFINE(HAVE_EPOLL, 1,
 787                 [Define if your system supports the epoll system calls])
 788             SELECT_TYPE="epoll"],
 789             AC_MSG_RESULT(no), AC_MSG_RESULT(no))
 790                 fi
 791         fi
 792
 793 haveepollsyscall=no
 794
 795 if test "x$ac_cv_header_sys_epoll_h" = "xyes"; then
 796         if test "x$haveepoll" = "xno" ; then
 797                 AC_MSG_CHECKING(for epoll system call)
 798                 AC_TRY_RUN(
 799 #include <stdint.h>
 800 #include <sys/param.h>
 801 #include <sys/types.h>
 802 #include <sys/epoll.h>
 803 #include <sys/syscall.h>
 804 #include <unistd.h>
 805
 806 int
 807 epoll_create(int size)
 808 {
 809         return (syscall(__NR_epoll_create, size));
 810 }
 811
 812 int
 813 main(int argc, char **argv)
 814 {
 815         int epfd;
 816
 817         epfd = epoll_create(256);
 818         exit (epfd == -1 ? 1 : 0);
 819 }, [AC_MSG_RESULT(yes)
 820     AC_DEFINE(HAVE_EPOLL, 1,
 821         [Define if your system supports the epoll system calls])
 822     SELECT_TYPE="epoll"],
 823     AC_MSG_RESULT(no), AC_MSG_RESULT(no))
 824         fi
 825 fi
 826
 827 fi
 828
 829 fi
 830
 831 if test -z "$SELECT_TYPE"; then
 832         AC_MSG_ERROR([Unable to find a usable IO interface],)
 833 fi
 834
 835 echo "Using $SELECT_TYPE for select loop."
 836
 837 AC_DEFINE_UNQUOTED(SELECT_TYPE, "$SELECT_TYPE", [This is the type of IO loop we are using])
 838 AC_SUBST(SELECT_TYPE)
 839
 840
 841 dnl Debug-related options
 842 dnl =====================
 843
 844 AC_ARG_ENABLE(assert,
 845 AC_HELP_STRING([--enable-assert],[Enable assert(). Choose between soft(warnings) and hard(aborts the daemon)]),
 846 [assert=$enableval], [assert=no])
 847
 848 if test "$assert" = no; then
 849         AC_DEFINE(NDEBUG, 1, [Define this to disable debugging support.])
 850 elif test "$assert" = soft; then
 851         AC_DEFINE(SOFT_ASSERT, 1, [Define this to enable soft asserts.])
 852         AC_DEFINE(NDEBUG, 1, [Define this to disable debugging support.])
 853 elif test "$assert" = yes; then
 854         assert = "hard";
 855 fi
 856
 857 AC_MSG_CHECKING(if you want IO Debugging hooks)
 858 AC_ARG_ENABLE(iodebug,
 859 AC_HELP_STRING([--enable-iodebug],[Enable IO Debugging hooks]),
 860 [iodebug=$enableval], [iodebug=no])
 861
 862 if test "$iodebug" = yes; then
 863         AC_DEFINE(USE_IODEBUG_HOOKS, 1, [Define this to enable IO Debug hooks.])
 864         AC_MSG_RESULT(yes)
 865 else
 866         AC_MSG_RESULT(no)
 867 fi
 868
 869
 870 AC_MSG_CHECKING(if you want to do a profile build)
 871 AC_ARG_ENABLE(profile,
 872 AC_HELP_STRING([--enable-profile],[Enable profiling]),
 873 [profile=$enableval], [profile=no])
 874
 875 if test "$profile" = yes; then
 876         if test "$ac_cv_c_compiler_gnu" = yes; then
 877                 IRC_CFLAGS="$IRC_CFLAGS -pg"
 878                 AC_MSG_RESULT([yes, adding -pg])
 879                 AC_DEFINE(CHARYBDIS_PROFILE, 1, [Define this if you are profiling.])
 880         else
 881                 AC_MSG_RESULT([no, profile builds only work with gcc])
 882         fi
 883 else
 884         AC_MSG_RESULT(no)
 885 fi
 886
 887 AC_ARG_ENABLE(balloc,
 888 AC_HELP_STRING([--disable-balloc],[Disable the block allocator.]),
 889 [balloc=$enableval], [balloc=yes])
 890
 891 if test "$balloc" = no; then
 892         AC_DEFINE([NOBALLOC], 1, [Define to 1 if you wish to disable the block allocator.])
 893 fi
 894
 895 AC_ARG_ENABLE(small-net,
 896 AC_HELP_STRING([--enable-small-net],[Enable small network support.]),
 897 [small_net=$enableval], [small_net=no])
 898
 899 if test "$small_net" = yes; then
 900 dnl     AC_DEFINE([HASHSIZE], 4096, [Max number of buckets in hash tables.])
 901         AC_DEFINE([NICKNAMEHISTORYLENGTH], 1500, [Size of the WHOWAS array.])
 902         AC_DEFINE([CHANNEL_HEAP_SIZE], 256, [Size of the channel heap.])
 903         AC_DEFINE([BAN_HEAP_SIZE], 128, [Size of the ban heap.])
 904         AC_DEFINE([CLIENT_HEAP_SIZE], 256, [Size of the client heap.])
 905         AC_DEFINE([LCLIENT_HEAP_SIZE], 128, [Size of the local client heap.])
 906         AC_DEFINE([PCLIENT_HEAP_SIZE], 32, [Size of the pre-client heap.])
 907         AC_DEFINE([USER_HEAP_SIZE], 128, [Size of the user heap.])
 908         AC_DEFINE([DNODE_HEAP_SIZE], 256, [Size of the dlink_node heap.])
 909         AC_DEFINE([TOPIC_HEAP_SIZE], 256, [Size of the topic heap.])
 910         AC_DEFINE([LINEBUF_HEAP_SIZE], 128, [Size of the linebuf heap.])
 911         AC_DEFINE([MEMBER_HEAP_SIZE], 256, [Sizeof member heap.])
 912         AC_DEFINE([ND_HEAP_SIZE], 128, [Size of the nick delay heap.])
 913         AC_DEFINE([CONFITEM_HEAP_SIZE], 128, [Size of the confitem heap.])
 914         AC_DEFINE([MONITOR_HEAP_SIZE], 128, [Size of the monitor heap.])
 915         AC_DEFINE([FD_HEAP_SIZE], 128, [Size of fd heap.])
 916         AC_DEFINE([AWAY_HEAP_SIZE], 128, [Size of away heap.])
 917 else
 918 dnl These settings are for a large network like efnet..they will use lots of memory
 919 dnl so enable small net unless you really need this much support
 920         AC_DEFINE([NICKNAMEHISTORYLENGTH], 15000, [Size of the WHOWAS array.])
 921         AC_DEFINE([CHANNEL_HEAP_SIZE], 8192, [Size of the channel heap.])
 922         AC_DEFINE([BAN_HEAP_SIZE], 4096, [Size of the ban heap.])
 923         AC_DEFINE([CLIENT_HEAP_SIZE], 8192, [Size of the client heap.])
 924         AC_DEFINE([LCLIENT_HEAP_SIZE], 1024, [Size of the local client heap.])
 925         AC_DEFINE([PCLIENT_HEAP_SIZE], 256, [Size of the pre-client heap.])
 926         AC_DEFINE([USER_HEAP_SIZE], 8192, [Size of the user heap.])
 927         AC_DEFINE([DNODE_HEAP_SIZE], 8192, [Size of the dlink_node heap.])
 928         AC_DEFINE([TOPIC_HEAP_SIZE], 4096, [Size of the topic heap.])
 929         AC_DEFINE([LINEBUF_HEAP_SIZE], 2048, [Size of the linebuf heap.])
 930         AC_DEFINE([MEMBER_HEAP_SIZE], 32768, [Sizeof member heap.])
 931         AC_DEFINE([ND_HEAP_SIZE], 512, [Size of the nick delay heap.])
 932         AC_DEFINE([CONFITEM_HEAP_SIZE], 256, [Size of the confitem heap.])
 933         AC_DEFINE([MONITOR_HEAP_SIZE], 1024, [Size of the monitor heap.])
 934         AC_DEFINE([FD_HEAP_SIZE], 1024, [Size of fd heap.])
 935         AC_DEFINE([AWAY_HEAP_SIZE], 512, [Size of away heap.])
 936 fi
 937
 938 AC_ARG_WITH(nicklen,
 939 AC_HELP_STRING([--with-nicklen=LENGTH],[Set the upper-bound nick length to LENGTH (default 31, max 50)]),
 940 [
 941   if ! expr "$withval" + 0 >/dev/null 2>&1; then
 942         AC_ERROR([NICKLEN must be a numeric value])
 943   fi
 944   if test $withval -gt 50; then
 945         NICKLEN=50
 946         AC_MSG_WARN([NICKLEN has a hard limit of 50. Setting NICKLEN=50])
 947   elif test $withval -lt 9; then
 948         NICKLEN=9
 949         AC_MSG_WARN([NICKLEN has a lower limit of 9. Setting NICKLEN=9])
 950   else
 951         NICKLEN="$withval"
 952   fi
 953 ], [NICKLEN=31])
 954
 955 AC_ARG_WITH(topiclen,
 956 AC_HELP_STRING([--with-topiclen=NUMBER],[Set the max topic length to NUMBER (default 390, max 390)]),
 957 [
 958  if test $withval -ge 390; then
 959         TOPICLEN=390
 960         AC_MSG_WARN([TOPICLEN has a hard limit of 390. Setting TOPICLEN=390])
 961  else
 962         TOPICLEN=$withval
 963  fi
 964 ], [TOPICLEN=390])
 965
 966 AC_DEFINE_UNQUOTED(TOPICLEN, ${TOPICLEN}, [Maximum topic length (<=390)])
 967 AC_DEFINE_UNQUOTED(NICKLEN, (${NICKLEN}+1), [Nickname length])
 968
 969 shared_modules="yes"
 970 dnl Some first-stage sanity checks.
 971 if test "$shared_modules" = yes; then
 972         dnl TenDRA's cc is called tcc too.
 973         if test "$CC" = tcc -a "$TenDRA" = "no"; then
 974                 AC_MSG_WARN([disabling shared modules: Tiny C Compiler can't create PIC])
 975                 shared_modules="no"
 976         fi
 977 fi
 978
 979 dnl Second stage: check for functions and headers.
 980 if test "$shared_modules" = yes; then
 981         DYNLINK_C=dynlink.c
 982         AC_CHECK_HEADERS(dlfcn.h)
 983         AC_SEARCH_LIBS(shl_load, dld,
 984         [
 985           AC_DEFINE(HAVE_SHL_LOAD, 1, [Define if the shl_load function is available.])
 986           SUFFIX=".sl"
 987           MOD_TARGET=hpux_shared
 988           SEDOBJ="s/\.o/.sl/g"
 989         ],
 990         dnl !shl_load:
 991         [
 992           dnl standard dlopen
 993           AC_SEARCH_LIBS(dlopen, [dl c_r],
 994           [
 995             AC_DEFINE(HAVE_DLOPEN, 1, [Define if the dlopen function is available.])
 996             SUFFIX=".so"
 997             MOD_TARGET=shared_modules
 998             SEDOBJ="s/\.o/.so/g"
 999             if test "$AppleGCC" = yes; then
1000               AC_CHECK_HEADERS([mach-o/dyld.h])
1001             fi
1002             AC_CHECK_FUNC(dlsym, ,
1003             [
1004               AC_MSG_WARN([dlsym is not available, shared modules disabled])
1005               shared_modules=no
1006             ])
1007             AC_CHECK_FUNCS(dlfunc)
1008           ],
1009           [
1010             shared_modules=no
1011           ])
1012         ])
1013 fi
1014
1015 AC_DEFINE_UNQUOTED(SHARED_SUFFIX, "$SUFFIX", [Suffix for shared libraries on this platform.])
1016
1017 dnl Third stage - wrangling the linker.
1018 if test "$shared_modules" = yes; then
1019         # The GNU linker requires the -export-dynamic option to make
1020         # all symbols visible in the dynamic symbol table.
1021         hold_ldflags=$LDFLAGS
1022         AC_MSG_CHECKING(for the ld -export-dynamic flag)
1023         LDFLAGS="${LDFLAGS} -Wl,-export-dynamic -Werror"
1024         AC_LINK_IFELSE(AC_LANG_PROGRAM([],[int i;]), found=yes, found=no)
1025         LDFLAGS=$hold_ldflags
1026
1027         if expr "`uname -s`" : ^IRIX >/dev/null 2>&1; then
1028                 found="no, IRIX ld uses -B,dynamic"
1029                 LDFLAGS="${LDFLAGS} -Wl,-B,dynamic"
1030         fi
1031
1032         if expr "`uname -s`" : ^AIX >/dev/null 2>&1; then
1033                 found="no, AIX ld uses -G -brtl"
1034                 LDFLAGS="${LDFLAGS} -Wl,-G,-brtl"
1035         fi
1036
1037         AC_MSG_RESULT($found)
1038
1039         if test "$found" = yes; then
1040                 LDFLAGS="${LDFLAGS} -Wl,-export-dynamic"
1041         fi
1042
1043         AC_MSG_CHECKING(for compiler option to produce PIC)
1044         dnl The order should be here to check for groups of compilers,
1045         dnl then for odd compilers, then if no PICFLAGS were set up,
1046         dnl check for GCC and set defaults, or else error. -jmallett
1047         if test "$SGS" = "yes"; then
1048                 AC_MSG_RESULT([SVR4 SGS interfaces: -KPIC -DPIC -G])
1049                 PICFLAGS="-KPIC -DPIC -G"
1050         fi
1051
1052         if test "$AppleGCC" = "yes"; then
1053                 AC_MSG_RESULT([Darwin Mach-O bundles: -fno-common -bundle -flat_namespace -undefined suppress])
1054                 PICFLAGS="-fno-common -bundle -flat_namespace -undefined suppress"
1055         fi
1056         dnl Please note, that on HPUX two different stages of module compilation occurs, since
1057         dnl while compiling modules, the compiler does not allow you to give arguments
1058         dnl to the linker. (I did not design this)
1059         dnl So we need -c in the first stage of module compilation.
1060         dnl In the second stage, we link the modules via ld -b.
1061         dnl Additionally, HPUX does not like -export-dynamic, it likes -E instead.
1062         dnl -TimeMr14C
1063         if test "$HPUX" = "yes" -a "$CC" != gcc; then
1064                 AC_MSG_RESULT(HP-UX cc: +z -r -q -n)
1065                 PICFLAGS="+z -r -q -n -c"
1066                 AC_MSG_CHECKING([if +ESfic is required on this platform])
1067
1068                 if expr "`$CC +ESfic 2>&1`" : ".*neither supported.*" >/dev/null; then
1069                         AC_MSG_RESULT(no)
1070                 else
1071                         AC_MSG_RESULT(yes)
1072                         PICFLAGS="$PICFLAGS +ESfic"
1073                 fi
1074
1075                 LDFLAGS="${LDFLAGS} -Wl,-E"
1076         fi
1077         if test "$Tru" = yes -a "$CC" != gcc; then
1078                 AC_MSG_RESULT([Tru64: -shared -expect_unresolved '*'])
1079                 PICFLAGS="-shared -expect_unresolved '*' "
1080                 LDFLAGS="-call_shared"
1081         fi
1082         if test -z "$PICFLAGS"; then
1083                 if test "$ac_cv_c_compiler_gnu" = "yes"; then
1084                         AC_MSG_RESULT(gcc: -fPIC -DPIC -shared)
1085                         PICFLAGS="-fPIC -DPIC -shared"
1086                 else
1087                         AC_MSG_RESULT(no)
1088                         shared_modules=no
1089                 fi
1090         fi
1091 fi
1092
1093 # rpath, for finding libratbox.so at run time
1094 hold_ldflags=$LDFLAGS
1095 AC_MSG_CHECKING(for the ld -rpath flag)
1096 LDFLAGS="${LDFLAGS} -Wl,-rpath=${libdir}"
1097 AC_LINK_IFELSE(AC_LANG_PROGRAM([],[int i;]), found=yes, found=no)
1098 LDFLAGS=$hold_ldflags
1099 AC_MSG_RESULT($found)
1100 if test "$found" = yes; then
1101         LDFLAGS="${LDFLAGS} -Wl,-rpath=\${libdir}"
1102 fi
1103
1104 # This must be down here, or it will mess up checks like the ones
1105 # for -Wl,-export-dynamic
1106 # -- jilles
1107 CWARNS=""
1108 AC_ARG_ENABLE(warnings,
1109 AC_HELP_STRING([--enable-warnings],[Enable all sorts of warnings for debugging.]),
1110 [
1111 IRC_CFLAGS="$IRC_CFLAGS -O0"
1112 CFLAGS="$IRC_CFLAGS"
1113
1114 CHARYBDIS_C_GCC_TRY_FLAGS([-Wall], charybdis_cv_c_gcc_w_all)
1115 CHARYBDIS_C_GCC_TRY_FLAGS([-Wpointer-arith], charybdis_cv_c_gcc_w_pointer_arith)
1116 CHARYBDIS_C_GCC_TRY_FLAGS([-Wimplicit -Wnested-externs], charybdis_cv_c_gcc_w_implicit)
1117 CHARYBDIS_C_GCC_TRY_FLAGS([-Wcast-align], charybdis_cv_c_gcc_w_cast_align)
1118 CHARYBDIS_C_GCC_TRY_FLAGS([-Wcast-qual], charybdis_cv_c_gcc_w_cast_qual)
1119 CHARYBDIS_C_GCC_TRY_FLAGS([-Wwrite-strings], charybdis_cv_c_gcc_w_write_strings)
1120 CHARYBDIS_C_GCC_TRY_FLAGS([-Werror-implicit-function-declaration], charybdis_cv_c_gcc_w_error_implicit_function_declaration)
1121 CHARYBDIS_C_GCC_TRY_FLAGS([-Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations], charybdis_cv_c_gcc_prototypes)
1122 CHARYBDIS_C_GCC_TRY_FLAGS([-Wparenthesis], charybdis_cv_c_gcc_parenthesis)
1123 CHARYBDIS_C_GCC_TRY_FLAGS([-W -Wno-unused], charybdis_cv_c_gcc_w)
1124 CHARYBDIS_C_GCC_TRY_FLAGS([-Wextra], charybdis_cv_c_gcc_w_extra)
1125 CHARYBDIS_C_GCC_TRY_FLAGS([-Wshadow], charybdis_cv_c_gcc_w_shadow)
1126 CHARYBDIS_C_GCC_TRY_FLAGS([-Wmissing-noreturn], charybdis_cv_c_gcc_w_missing_noreturn)
1127 CHARYBDIS_C_GCC_TRY_FLAGS([-Wundef], charybdis_cv_c_gcc_w_undef)
1128 CHARYBDIS_C_GCC_TRY_FLAGS([-Wpacked], charybdis_cv_c_gcc_w_packed)
1129 CHARYBDIS_C_GCC_TRY_FLAGS([-Wnested-externs], charybdis_cv_c_gcc_w_nested_externs)
1130 CHARYBDIS_C_GCC_TRY_FLAGS([-Wunused-function -Wunused-label -Wunused-value -Wunused-variable], charybdis_cv_c_gcc_w_unused)
1131 CHARYBDIS_C_GCC_TRY_FLAGS([-Wredundant-decls], charybdis_cv_c_gcc_w_redundant_decls)
1132 CHARYBDIS_C_GCC_TRY_FLAGS([-Wfloat-equal], charybdis_cv_c_gcc_w_float_equal)
1133 CHARYBDIS_C_GCC_TRY_FLAGS([-Wformat -Wformat-y2k -Wno-format-security], charybdis_cv_c_gcc_w_format)
1134
1135 IRC_CFLAGS="$CFLAGS"
1136 ],[])
1137
1138 if test "$shared_modules" = no; then
1139         DYNLINK_C=""
1140         MOD_TARGET="libmodules.a"
1141         MODULES_LIBS="../modules/libmodules.a"
1142         SEDOBJ=""
1143         AC_DEFINE(STATIC_MODULES, 1, [Define to 1 if dynamic modules can't be used.])
1144         AC_MSG_WARN([shared module support has been disabled!])
1145 fi
1146
1147 dnl Stage 5 - underscores in front of symbol names.
1148 if test "$shared_modules" = yes; then
1149
1150         AC_CHECK_FUNC(nlist,,
1151                 AC_CHECK_LIB(dl, nlist, nlist_lib="-ldl",
1152                         AC_CHECK_LIB(elf, nlist, nlist_lib="-lelf",)
1153                 )
1154         )
1155
1156         dnl We need to find out whether underscores are appended to symbol
1157         dnl names in executable files.  First, though, we need to see
1158         dnl where nlist.h is hiding.
1159         AC_CHECK_HEADER(libelf/nlist.h, [ nlist_h="libelf/nlist.h" ], )
1160         AC_CHECK_HEADER(elf/nlist.h, [ nlist_h="elf/nlist.h" ], )
1161         AC_CHECK_HEADER(nlist.h, [ nlist_h="nlist.h" ], )
1162         if test x"$nlist_h" = "x"; then
1163                 AC_DEFINE_UNQUOTED(SYMBOL_PREFIX, "", [String containing extra underscores prepended to symbols loaded from modules.])
1164         else
1165                 AC_MSG_CHECKING(for extra underscores prepended to symbol names)
1166                 AC_CACHE_VAL(symbol_underscores,
1167                 [
1168 cat << EOF > conftest.c
1169 #include <$nlist_h>
1170 #include <stdio.h>
1171 #include <stdlib.h>
1172 void _modinit(void);
1173 int main(int argc, char *argv[[]]) {
1174         int i;
1175         struct nlist nl[[5]];
1176
1177         /* fill the names in this way, so it'll work almost everywhere */
1178         nl[[0]].n_name = "_modinit";
1179         nl[[1]].n_name = "__modinit";
1180         nl[[2]].n_name = "___modinit";
1181         nl[[3]].n_name = "____modinit";
1182         nl[[0]].n_value = nl[[1]].n_value = nl[[2]].n_value = nl[[3]].n_value = nl[[4]].n_name = NULL;
1183
1184         if(argc < 2 || (nlist(argv[[1]], nl)) == -1) exit(-1);
1185         for(i = 0; i < 4; i++) {
1186                 if(nl[[i]].n_value != NULL)
1187                 {
1188                         int j;
1189                         for(j = 0; j < i; j++)
1190                                 printf("_");
1191                         exit(i);
1192                 }
1193         }
1194         exit(-1);
1195 }
1196 void _modinit(void) { return; }
1197 EOF
1198                 $CC $CPPFLAGS $IRC_CFLAGS -o conftest conftest.c $nlist_lib >/dev/null 2>&1
1199                 symbol_underscores=`./conftest conftest`
1200                 AC_MSG_RESULT($symbol_underscores)
1201                 $RM -f conftest conftest.c
1202                 ])
1203                 AC_DEFINE_UNQUOTED(SYMBOL_PREFIX, "${symbol_underscores}", [String containing extra underscores prepended to symbols loaded from modules.])
1204         fi
1205 fi
1206
1207 IRC_CFLAGS="$IRC_CFLAGS $CWARNS"
1208
1209 AC_SUBST(MODULES_LIBS)
1210 AC_SUBST(MOD_TARGET)
1211
1212 AC_SUBST(SSL_SRCS_ENABLE)
1213 AC_SUBST(SSL_INCLUDES)
1214 AC_SUBST(SSL_LIBS)
1215
1216 AC_SUBST(LDFLAGS)
1217 AC_SUBST(PICFLAGS)
1218 AC_SUBST(IRC_CFLAGS)
1219 AC_SUBST(SEDOBJ)
1220
1221
1222 if test "$prefix" = "NONE"; then
1223         AC_DEFINE_UNQUOTED(IRCD_PREFIX, "$ac_default_prefix", [Prefix where the ircd is installed.])
1224
1225 else
1226
1227 dnl Don't get bitten by Cygwin's stupidity if the user specified
1228 dnl a custom prefix with a trailing slash
1229
1230         prefix=`echo $prefix | sed 's/\/$//'`
1231         AC_DEFINE_UNQUOTED(IRCD_PREFIX, "$prefix", [Prefix where the ircd is installed.])
1232
1233 fi
1234
1235 AC_CONFIG_FILES(                        \
1236         Makefile                        \
1237         bandb/Makefile                  \
1238         ssld/Makefile                   \
1239         extensions/Makefile             \
1240         src/Makefile                    \
1241         modules/Makefile                \
1242         tools/Makefile                  \
1243         tools/genssl                    \
1244         doc/Makefile                    \
1245         help/Makefile                   \
1246 )
1247 AC_CONFIG_COMMANDS([tools/genssl_chmod], [chmod 755 tools/genssl])
1248
1249 AC_OUTPUT
1250
1251 if test "$cf_openssl_version_ok" = yes; then
1252         openssl="yes"
1253 else
1254         openssl="no"
1255 fi
1256
1257 if test "$shared_modules" = yes; then
1258         modules=shared
1259 else
1260         modules=static
1261 fi
1262
1263 echo "
1264 Configuration of ${BRANDING_NAME}-${BRANDING_VERSION}:
1265         Install directory  : $prefix
1266
1267         Ziplinks           : $zlib
1268         OpenSSL            : $openssl
1269         Socket Engine      : $SELECT_TYPE
1270         Small network      : $small_net
1271         Block allocator    : $balloc
1272
1273         Nickname length    : $NICKLEN
1274         Topic length       : $TOPICLEN
1275
1276 Use (g)make to compile $BRANDING_NAME, then (g)make install to install it.
1277 "