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 $])
  12
  13 AC_INIT([charybdis], [3.5.0-dev])
  14
  15 AC_CONFIG_MACRO_DIR([m4])
  16 AC_CONFIG_HEADER(include/setup.h)
  17
  18 AC_PREFIX_DEFAULT($HOME/ircd)
  19
  20 AC_GNU_SOURCE
  21
  22 OLD_CFLAGS="$CFLAGS"
  23 dnl Checks for programs.
  24 AC_PROG_CC
  25 AC_LANG(C)
  26
  27 dnl Make sure autoconf doesn't interfere with cflags -jmallett
  28 CFLAGS="$OLD_CFLAGS"
  29
  30 AC_CONFIG_SUBDIRS(libratbox)
  31
  32 dnl Check for various compilers. -jmallett
  33 dnl But if $CC turns out to be gcc, sure as hell it's, well, gcc. -joshk
  34
  35 if test "$ac_cv_c_compiler_gnu" != yes; then
  36
  37 SGS=no
  38 AC_MSG_CHECKING($CC -version for TenDRA or MIPSpro)
  39 case `$CC -version 2>&1` in
  40 *TenDRA*)
  41         AC_MSG_RESULT([yes, TenDRA])
  42         IRC_CFLAGS=""
  43         CPPFLAGS="$CPPFLAGS -Ylonglong -Yansi -I/usr/include"
  44         SGS=yes
  45         TenDRA=yes
  46 ;;
  47 *MIPSpro*)
  48         AC_MSG_RESULT([yes, MIPSpro])
  49         MIPSpro=yes
  50         SGS=yes
  51 ;;
  52 *)
  53         AC_MSG_RESULT(no)
  54         TenDRA=no
  55         MIPSpro=no
  56 ;;
  57 esac
  58
  59 AC_MSG_CHECKING([$CC -V for Sun Workshop, Forte, HPUX or Tru64 cc])
  60 case `$CC -V 2>&1` in
  61 *Sun*WorkShop* | *Forte*Developer*)
  62         AC_MSG_RESULT(Sun Workshop/Forte)
  63         IRC_CFLAGS="-fast -xinline=dlinkAdd,dlinkAddBefore,dlinkAddTail,dlinkDelete,dlink_list_length,dlink_node,dlinkMoveList,_MyMalloc,_MyRealloc,_MyFree,_DupString"
  64         SunWorkShop=yes
  65         SGS=yes
  66 ;;
  67 *Tru64*)
  68         AC_MSG_RESULT(Tru64 cc)
  69         IRC_CFLAGS="-O2"
  70         CPPFLAGS="-I/usr/local/include"
  71         Tru=yes
  72 ;;
  73 *HP*ANSI*)
  74         AC_MSG_RESULT(HPUX cc)
  75         HPUX=yes
  76         IRC_CFLAGS="+e"
  77 ;;
  78 *)
  79         AC_MSG_RESULT(no)
  80 ;;
  81 esac
  82
  83 fi
  84
  85 AC_MSG_CHECKING([uname -s for Solaris, AIX or HPUX])
  86 OSNAME=`uname -s`
  87 case "$OSNAME" in
  88         HP-UX*)
  89         dnl only do this if we haven't already detected the newer one
  90         dnl and we're not already using gcc
  91
  92                 if test "$HPUX" != yes -a "$ac_cv_c_compiler_gnu" = no; then
  93                         AC_MSG_RESULT(assuming old HPUX with its own cc)
  94                         IRC_CFLAGS="$IRC_CFLAGS +e"
  95                         HPUX=yes
  96                 else
  97                         AC_MSG_RESULT(already using newer HPUX)
  98                 fi
  99         ;;
 100         SunOS*)
 101                 AC_MSG_RESULT(SunOS or Solaris)
 102                 AC_DEFINE(__EXTENSIONS__, 1, [This is needed to use strtok_r on Solaris.])
 103                 SUN=yes
 104         ;;
 105         AIX*)
 106                 AC_MSG_RESULT(AIX - Sorry you poor bastard..really we are)
 107                 IRC_CFLAGS="$IRC_CFLAGS -Wl,-brtl -Wl,-G"
 108         ;;
 109         *)
 110                 AC_MSG_RESULT(no)
 111         ;;
 112 esac
 113
 114 if test "$ac_cv_c_compiler_gnu" = yes; then
 115         AC_MSG_CHECKING(if $CC is Apple GCC)
 116
 117         case `$CC -v 2>&1 | tail -n 1` in
 118         *Apple*)
 119                 AC_MSG_RESULT(yes)
 120                 AppleGCC=yes
 121         ;;
 122         *)
 123                 AC_MSG_RESULT(no)
 124                 AppleGCC=no
 125         ;;
 126         esac
 127
 128         IRC_CFLAGS="$IRC_CFLAGS -O0 -Wall -std=gnu99"
 129 fi
 130
 131 dnl If we support -g, use it!
 132 if test "$ac_cv_prog_cc_g" = yes; then
 133         dnl Tru64 needs -g3 for -O2
 134         if test "$Tru" = yes; then
 135                 IRC_CFLAGS="$IRC_CFLAGS -g3"
 136         else
 137                 IRC_CFLAGS="$IRC_CFLAGS -g"
 138         fi
 139 fi
 140
 141 dnl SVR4 SGS based on what we know about the compiler -jmallett
 142 AC_MSG_CHECKING(if $CC supports the SVR4 SGS interfaces)
 143 if test "$SGS" = "yes"; then
 144         AC_MSG_RESULT(yes)
 145 else
 146         AC_MSG_RESULT(no)
 147 fi
 148
 149 dnl We prefer gcc -MM because it's a lot less bloated
 150 AC_PATH_PROG(MKDEP, mkdep)
 151 AC_PATH_PROG(MAKEDEPEND, makedepend)
 152
 153 AC_MSG_CHECKING(how to generate dependency info)
 154
 155 STDOUT="> .depend"
 156
 157 if test "$ac_cv_c_compiler_gnu" = yes; then
 158         AC_MSG_RESULT(gcc -MM)
 159         MKDEP="$CC -MM"
 160 elif test ! -z "$MKDEP"; then
 161         AC_MSG_RESULT(mkdep)
 162
 163         dnl Tru64's mkdep is very loud
 164         if test -z "$Tru"; then
 165                 STDOUT=""
 166         else
 167                 STDOUT=" 2> /dev/null"
 168         fi
 169 elif test "$SunWorkShop" = yes; then
 170         AC_MSG_RESULT($CC -xM)
 171         MKDEP="$CC -xM"
 172         STDOUT="> .depend 2> /dev/null"
 173 elif test ! -z "$MAKEDEPEND"; then
 174         AC_MSG_RESULT(makedepend)
 175         MKDEP="$MAKEDEPEND -f-"
 176 else
 177         AC_MSG_RESULT([nothing suitable.. forget it!])
 178         MKDEP=":"
 179 fi
 180
 181 AC_SUBST(MKDEP)
 182 AC_SUBST(STDOUT)
 183
 184 dnl check for /dev/null so we can use it to hold evil fd's
 185 AC_MSG_CHECKING([for /dev/null])
 186 if test -c /dev/null ; then
 187         AC_DEFINE(PATH_DEVNULL, "/dev/null", [Path to /dev/null])
 188         AC_MSG_RESULT(yes)
 189 else
 190         AC_DEFINE(PATH_DEVNULL, "devnull.log", [Path to /dev/null])
 191         AC_MSG_RESULT(no - using devnull.log)
 192 fi
 193
 194 dnl jdc -- If CFLAGS is defined, best use it everywhere...
 195 dnl NOTE: jv says it must be added to the *END*, because things like
 196 dnl "gcc -O9 -O2" will result in -O2 getting preference.  How stupid.
 197 if test ! -z "$CFLAGS"; then
 198         IRC_CFLAGS="$IRC_CFLAGS $CFLAGS"
 199 fi
 200
 201 AC_ISC_POSIX
 202 AC_C_INLINE
 203 AC_PROG_GCC_TRADITIONAL
 204 AC_PROG_MAKE_SET
 205 AC_PROG_INSTALL
 206 AC_PATH_PROG(RM, rm)
 207 AC_PATH_PROG(CP, cp)
 208 AC_PATH_PROG(MV, mv)
 209 AC_PATH_PROG(LN, ln)
 210 AC_PATH_PROG(SED, sed)
 211 AC_PATH_PROG(AR, ar)
 212 AC_PATH_PROG(LD, ld)
 213 AC_PATH_PROG(RANLIB, ranlib)
 214 AC_PATH_PROG(TOUCH, touch)
 215
 216 AC_PROG_YACC
 217
 218 dnl AC_PROG_YACC defaults to yacc unconditionally if nothing can be found
 219 if test "$YACC" = "yacc" -a -z "`which $YACC 2>/dev/null`"; then
 220         AC_MSG_ERROR([could not locate a suitable parser generator; install bison, yacc, or byacc])
 221 fi
 222
 223 AC_PROG_LEX
 224
 225 if test "$LEX" = ":"; then
 226         AC_MSG_ERROR([could not locate a suitable lexical generator, install flex or lex.])
 227 fi
 228
 229 AC_ARG_ENABLE([fhs-paths],
 230         [AS_HELP_STRING([--enable-fhs-paths], [Use more FHS-like pathnames (for packagers).])],
 231         [],
 232         [dnl detect if the user appears to want --enable-fhs-paths
 233         AS_IF([test "$libexecdir" = '${exec_prefix}/libexec' && \
 234                 test "$localstatedir" = '${prefix}/var' && \
 235                 test "$libdir" = '${exec_prefix}/lib'],
 236                 [enable_fhs_paths=no],
 237                 [enable_fhs_paths=yes])
 238         ])
 239 dnl use directory structure of cached as default (hack)
 240 AS_IF([test "x$enable_fhs_paths" = "xyes"],
 241         [dnl Avoid name collisions.
 242         pkglibexecdir='${libexecdir}/${PACKAGE_TARNAME}'
 243         rundir=${rundir-'${prefix}/run'}
 244         pkgrundir='${rundir}/${PACKAGE_TARNAME}'
 245         pkglocalstatedir='${localstatedir}/${PACKAGE_TARNAME}'],
 246         [libexecdir='${bindir}'
 247         pkglibexecdir='${libexecdir}'
 248         rundir='${sysconfdir}'
 249         pkgrundir='${rundir}'
 250         localstatedir='${prefix}'
 251         pkglocalstatedir='${sysconfdir}'])
 252 pkglibdir='${libdir}/${PACKAGE_TARNAME}'
 253 AC_SUBST([pkglibdir])
 254 AC_SUBST([rundir])
 255 AC_SUBST([pkgrundir])
 256 AC_SUBST([pkglocalstatedir])
 257 AC_DEFINE_DIR([PKGLOCALSTATEDIR], [pkglocalstatedir], [[Directory in which to store state, such as ban database]])
 258 AC_SUBST([pkglibexecdir])
 259 AC_DEFINE_DIR([PKGLIBEXECDIR], [pkglibexecdir], [Directory where binaries the IRCd itself spawns live])
 260
 261 dnl Checks for header files.
 262 AC_HEADER_STDC
 263
 264 AC_CHECK_HEADERS([crypt.h sys/resource.h sys/param.h errno.h sys/syslog.h stddef.h sys/wait.h wait.h sys/epoll.h sys/uio.h machine/endian.h])
 265
 266 dnl Stuff that the memory manager (imalloc) depends on
 267 dnl ==================================================
 268
 269 AC_C_CONST
 270 if test "$ac_cv_header_machine_endian_h" = "no" ; then
 271     AC_C_BIGENDIAN
 272 fi
 273 AC_TYPE_PID_T
 274 AC_TYPE_SIZE_T
 275 AC_CHECK_SIZEOF(short)
 276 AC_CHECK_SIZEOF(int)
 277 AC_CHECK_SIZEOF(long)
 278 AC_CHECK_SIZEOF(long long)
 279
 280 dnl Networking Functions
 281 dnl ====================
 282
 283 AC_SEARCH_LIBS(socket, socket, , [AC_MSG_ERROR([You have no socket()! Aborting.])])
 284
 285 dnl SunOS/Solaris required libnsl for inet_ntoa()
 286 if test x"$SUN" = xyes; then
 287         AC_SEARCH_LIBS(inet_ntoa, nsl,, [AC_MSG_ERROR([libnsl not found! Aborting.])])
 288 fi
 289
 290 AC_CHECK_TYPE(socklen_t, ,
 291 [AC_DEFINE([socklen_t], [unsigned int],
 292 [If we don't have a real socklen_t, unsigned int is good enough.])],
 293 [#include <sys/types.h>
 294 #include <sys/socket.h>])
 295
 296 AC_ARG_ENABLE(ipv6,
 297 AC_HELP_STRING([--enable-ipv6],[Enable IPv6 support]),[ipv6=$enableval],[ipv6=no])
 298
 299 AC_SEARCH_LIBS(crypt, [crypt descrypt],,)
 300
 301 CRYPT_LIB=$ac_cv_search_crypt
 302
 303 if test "$CRYPT_LIB" = "none required"; then
 304         unset CRYPT_LIB
 305 elif test "$CRYPT_LIB" = no; then
 306         unset CRYPT_LIB
 307 fi
 308
 309 AC_SUBST(CRYPT_LIB)
 310
 311 if test "$ac_cv_header_sys_wait_h" = yes -o "$ac_cv_header_wait_h" = yes; then
 312         VICONF=viconf
 313         dnl We need one of the above to build viconf. Just a sanity check,
 314         dnl we don't want to stop people from building the rest of ircd
 315         dnl just because they can't build viconf.
 316 else
 317         VICONF=""
 318 fi
 319
 320 AC_SUBST(VICONF)
 321
 322 dnl See whether we can include both string.h and strings.h.
 323 AC_CACHE_CHECK([whether string.h and strings.h may both be included],
 324 gcc_cv_header_string,
 325 [
 326         AC_COMPILE_IFELSE(
 327         [#include <string.h>
 328         #include <strings.h>],
 329         [gcc_cv_header_string=yes],
 330         [gcc_cv_header_string=no])
 331 ])
 332
 333 if test "$gcc_cv_header_string" = "yes"; then
 334         AC_DEFINE(STRING_WITH_STRINGS, 1, [Define to 1 if string.h may be included along with strings.h])
 335 fi
 336
 337 AC_C_BIGENDIAN
 338
 339 dnl Check for stdarg.h - if we can't find it, halt configure
 340 AC_CHECK_HEADER(stdarg.h, , [AC_MSG_ERROR([** stdarg.h could not be found - charybdis will not compile without it **])])
 341
 342 dnl Checks for the existence of strlcat, strlcpy, basename...
 343 dnl This more reliable test only works with gcc though.
 344
 345 if test "$ac_cv_c_compiler_gnu" = yes; then
 346
 347 AC_MSG_CHECKING(for strlcpy)
 348 save_CFLAGS=$CFLAGS
 349 CFLAGS="$CFLAGS -Wimplicit -Werror"
 350
 351 AC_LINK_IFELSE(
 352         [AC_LANG_PROGRAM(
 353                 [[#include <string.h>
 354                 #include <stdlib.h>]],
 355                 [[char *a = malloc(6);
 356                 strlcpy(a, "hello", 6);]]
 357         )],
 358         [AC_MSG_RESULT(yes)
 359         AC_DEFINE(HAVE_STRLCPY, 1, [Define if strlcpy is available (most BSDs.)])],
 360         [AC_MSG_RESULT(no)]
 361 )
 362
 363 AC_MSG_CHECKING(for strlcat)
 364 AC_LINK_IFELSE(
 365         [AC_LANG_PROGRAM(
 366                 [[#include <string.h>
 367                 #include <stdlib.h>]],
 368                 [[char *a = malloc(6);
 369                 a[0] = '\0';
 370                 strlcat(a, "hello", 6);]]
 371         )],
 372         [AC_MSG_RESULT(yes)
 373         AC_DEFINE(HAVE_STRLCAT, 1, [Define if strlcat is available (most BSDs.)])],
 374         [AC_MSG_RESULT(no)]
 375 )
 376
 377 CFLAGS=$save_CFLAGS
 378
 379 else
 380
 381 dnl Better than nothing. The more complicated test above probably fixes powerpc,
 382 dnl so who cares.
 383
 384 AC_CHECK_FUNCS([strlcat strlcpy])
 385
 386 fi
 387
 388 AC_CHECK_TYPE([u_int32_t], [],
 389 [
 390         AC_CHECK_TYPE([uint32_t],
 391         [
 392                 AC_DEFINE(u_int32_t, [uint32_t], [If system does not define u_int32_t, define a reasonable substitute.])
 393         ],
 394         [
 395                 AC_MSG_WARN([system has no u_int32_t or uint32_t, default to unsigned long int])
 396                 AC_DEFINE(u_int32_t, [unsigned long int], [If system does not define u_int32_t, define to unsigned long int here.])
 397         ])
 398 ])
 399
 400 AC_CHECK_TYPE([u_int16_t], [],
 401 [
 402         AC_CHECK_TYPE([uint16_t],
 403         [
 404                 AC_DEFINE(u_int16_t, [uint16_t], [If system does not define u_int16_t, define a usable substitute])
 405         ],
 406         [
 407                 AC_MSG_WARN([system has no u_int16_t or uint16_t, default to unsigned short int])
 408                 AC_DEFINE(u_int16_t, [unsigned short int], [If system does not define u_int16_t, define a usable substitute.])
 409         ])
 410 ])
 411
 412 AC_CHECK_TYPE([in_port_t], [],
 413 [AC_DEFINE(in_port_t, [u_int16_t], [If system does not define in_port_t, define it to what it should be.])],
 414 [[#include <sys/types.h>
 415 #include <netinet/in.h>]])
 416
 417 AC_CHECK_TYPE([sa_family_t], [],
 418 [AC_DEFINE(sa_family_t, [u_int16_t], [If system does not define sa_family_t, define it here.])],
 419 [[#include <sys/types.h>
 420 #include <sys/socket.h>]])
 421
 422 AC_CHECK_TYPES([uintptr_t])
 423
 424 dnl check for various functions...
 425 AC_CHECK_FUNCS([socketpair vsnprintf mmap gettimeofday strdup strndup ])
 426
 427 AC_FUNC_ALLOCA
 428
 429 dnl Specialized functions checks
 430 dnl ============================
 431
 432 dnl check for nanosleep
 433 AC_CHECK_FUNC(nanosleep,,[AC_CHECK_LIB(rt,nanosleep,
 434                  LIBS="${LIBS} -lrt",
 435                  [AC_CHECK_LIB(posix4,nanosleep, LIBS="${LIBS} -lposix4"
 436                  )])])
 437 if test x$ac_cv_func_nanosleep = xno && test x$ac_cv_lib_posix4_nanosleep = xno  && test x$ac_cv_lib_rt_nanosleep = xno
 438 then
 439          AC_MSG_RESULT("nanosleep not found..using select for delay")
 440 else
 441          AC_DEFINE([HAVE_NANOSLEEP], 1, [Define if nanosleep exists])
 442 fi
 443
 444 dnl OpenSSL support
 445 AC_MSG_CHECKING(for OpenSSL)
 446 AC_ARG_ENABLE(openssl,
 447 [AC_HELP_STRING([--enable-openssl[=DIR]],[Enable OpenSSL support (DIR optional).])
 448 AC_HELP_STRING([--disable-openssl],[Disable OpenSSL support.])],
 449 [cf_enable_openssl=$enableval],
 450 [cf_enable_openssl="auto"])
 451
 452 if test "$cf_enable_openssl" != "no" ; then
 453         cf_openssl_basedir=""
 454         if test "$cf_enable_openssl" != "auto" &&
 455         test "$cf_enable_openssl" != "yes" ; then
 456                 dnl Support for --enable-openssl=/some/place
 457                 cf_openssl_basedir="`echo ${cf_enable_openssl} | sed 's/\/$//'`"
 458         else
 459         dnl Do the auto-probe here.  Check some common directory paths.
 460                 for dirs in /usr/local/ssl /usr/pkg /usr/local \
 461                 /usr/local/openssl ; do
 462                         if test -f "${dirs}/include/openssl/opensslv.h" ; then
 463                                 cf_openssl_basedir="${dirs}"
 464                         break
 465                         fi
 466                 done
 467                 unset dirs
 468         fi
 469         dnl Now check cf_openssl_found to see if we found anything.
 470         if test ! -z "$cf_openssl_basedir"; then
 471                 if test -f "${cf_openssl_basedir}/include/openssl/opensslv.h" ; then
 472                         SSL_INCLUDES="-I${cf_openssl_basedir}/include"
 473                         SSL_LIBS="-L${cf_openssl_basedir}/lib"
 474                 else
 475                 dnl OpenSSL wasn't found in the directory specified.  Naughty
 476                 dnl administrator...
 477                 cf_openssl_basedir=""
 478                 fi
 479         else
 480         dnl Check for stock FreeBSD 4.x and 5.x systems, since their files
 481         dnl are in /usr/include and /usr/lib.  In this case, we don't want to
 482         dnl change INCLUDES or LIBS, but still want to enable OpenSSL.
 483         dnl We can't do this check above, because some people want two versions
 484         dnl of OpenSSL installed (stock FreeBSD 4.x/5.x and /usr/local/ssl)
 485         dnl and they want /usr/local/ssl to have preference.
 486                 if test -f "/usr/include/openssl/opensslv.h" ; then
 487                         cf_openssl_basedir="/usr"
 488                 fi
 489         fi
 490
 491         dnl If we have a basedir defined, then everything is okay.  Otherwise,
 492         dnl we have a problem.
 493         if test ! -z "$cf_openssl_basedir"; then
 494                 AC_MSG_RESULT($cf_openssl_basedir)
 495                 cf_enable_openssl="yes"
 496         else
 497                 AC_MSG_RESULT([not found. Specify a correct path?])
 498                 cf_enable_openssl="no"
 499         fi
 500         unset cf_openssl_basedir
 501 else
 502         dnl If --disable-openssl was specified
 503         AC_MSG_RESULT(disabled)
 504 fi
 505
 506 save_CPPFLAGS="$CPPFLAGS"
 507 CPPFLAGS="$CPPFLAGS $SSL_INCLUDES"
 508 save_LIBS="$LIBS"
 509 LIBS="$LIBS $SSL_LIBS"
 510 if test "$cf_enable_openssl" != no; then
 511         dnl Check OpenSSL version (must be 0.9.6 or above!)
 512         AC_MSG_CHECKING(for OpenSSL 0.9.6 or above)
 513         AC_RUN_IFELSE(
 514                 AC_LANG_PROGRAM(
 515                 [#include <openssl/opensslv.h>
 516                 #include <stdlib.h>],
 517                 [[if ( OPENSSL_VERSION_NUMBER >= 0x00906000)
 518                 exit(0); else exit(1);]]),
 519         cf_openssl_version_ok=yes,
 520         cf_openssl_version_ok=no,
 521         cf_openssl_version_ok=no)
 522
 523         if test "$cf_openssl_version_ok" = yes; then
 524                 AC_MSG_RESULT(found)
 525
 526                 dnl Work around pmake/gmake conditional incompatibilities
 527                 AC_SUBST(ENCSPEED, encspeed)
 528
 529                 dnl Do all the HAVE_LIBCRYPTO magic -- and check for ciphers
 530                 CPPFLAGS="$CPPFLAGS $SSL_LIBS"
 531                 AC_CHECK_LIB(crypto, RSA_free)
 532                 SSL_LIBS="$SSL_LIBS -lcrypto"
 533                 SSL_SRCS_ENABLE='$(SSL_SRCS)'
 534         else
 535                 AC_MSG_RESULT(no - OpenSSL support disabled)
 536         fi
 537 fi
 538
 539 CPPFLAGS="$save_CPPFLAGS"
 540 LIBS="$save_LIBS"
 541
 542 dnl End OpenSSL detection
 543
 544
 545 dnl Specialized functions and libraries
 546 dnl ===================================
 547
 548 AC_ARG_WITH(zlib-path,
 549 AC_HELP_STRING([--with-zlib-path=DIR],[Path to libz.so for ziplinks support.]),
 550 [LIBS="$LIBS -L$withval"],)
 551
 552 AC_ARG_ENABLE(zlib,
 553 AC_HELP_STRING([--disable-zlib],[Disable ziplinks support]),
 554 [zlib=$enableval],[zlib=yes])
 555
 556 if test "$zlib" = yes; then
 557
 558 AC_CHECK_HEADER(zlib.h, [
 559         AC_CHECK_LIB(z, zlibVersion,
 560         [
 561                 AC_SUBST(ZLIB_LD, -lz)
 562                 AC_DEFINE(HAVE_LIBZ, 1, [Define to 1 if zlib (-lz) is available.])
 563         ], zlib=no)
 564 ], zlib=no)
 565
 566 fi
 567
 568 dnl Check for shared sqlite
 569 dnl ======================
 570 AC_ARG_WITH(shared-sqlite,
 571 AC_HELP_STRING([--with-shared-sqlite],[Use shared sqlite]),
 572 [shared_sqlite=$withval],[shared_sqlite=no])
 573
 574 if test "$shared_sqlite" = yes; then
 575         PKG_CHECK_MODULES(SQLITE, [sqlite3],
 576         [
 577                 shared_sqlite=yes
 578         ], shared_sqlite=no)
 579 fi
 580
 581 if test "$shared_sqlite" = no; then
 582         SQLITE_SRC="sqlite3.c"
 583 fi
 584
 585 AC_SUBST(SQLITE_LD, "$SQLITE_LIBS")
 586 AC_SUBST(SQLITE_INCLUDES, "$SQLITE_CFLAGS")
 587 AC_SUBST(SQLITE_SRC)
 588
 589 dnl IO Loop Selection
 590 dnl =================
 591
 592 AC_ARG_ENABLE(ports, AC_HELP_STRING([--enable-ports],[Force solaris I/O ports subsystem usage.]),
 593 [ if test $enableval = yes; then
 594         SELECT_TYPE_EXPLICIT="ports"
 595   else
 596         use_ports=no
 597   fi
 598 ],)
 599
 600 AC_ARG_ENABLE(poll, AC_HELP_STRING([--enable-poll],[Force poll() usage.]),
 601 [ if test $enableval = yes; then
 602         SELECT_TYPE_EXPLICIT="poll"
 603   else
 604         use_poll=no
 605   fi
 606 ],)
 607
 608 AC_ARG_ENABLE(select, AC_HELP_STRING([--enable-select],[Force select() usage.]),
 609 [ if test $enableval = yes; then
 610         SELECT_TYPE_EXPLICIT="select"
 611   else
 612         use_select=no
 613   fi
 614 ],)
 615
 616 AC_ARG_ENABLE(kqueue, AC_HELP_STRING([--enable-kqueue],[Force kqueue() usage.]),
 617 [ if test $enableval = yes; then
 618         SELECT_TYPE_EXPLICIT="kqueue"
 619   else
 620         use_kqueue=no
 621   fi
 622 ],)
 623
 624 AC_ARG_ENABLE(epoll, AC_HELP_STRING([--enable-epoll],[Force sys_epoll usage (Linux only).]),
 625 [ if test $enableval = yes; then
 626         SELECT_TYPE_EXPLICIT="epoll"
 627         AC_CHECK_FUNCS(epoll_ctl, [haveepoll=yes], [haveepoll=no])
 628   else
 629         use_epoll=no
 630   fi
 631 ],)
 632
 633 dnl **********************************************************************
 634 dnl Check for --with-confdir [deprecated, use --sysconfdir instead]
 635 dnl **********************************************************************
 636
 637 AC_ARG_WITH([confdir],
 638         [AC_HELP_STRING([--with-confdir=DIR],
 639                [Directory to install config files [deprecated, use --sysconfdir instead].])],
 640         [ sysconfdir=`echo $withval | sed 's/\/$//'` ],
 641         [ confdir='${sysconfdir}' ])
 642 AC_DEFINE_DIR([ETC_DIR], [sysconfdir], [Prefix where config files are installed.])
 643
 644 dnl **********************************************************************
 645 dnl Check for --with-logdir
 646 dnl **********************************************************************
 647
 648 AC_MSG_CHECKING([whether to modify logdir])
 649 AC_ARG_WITH(logdir,
 650 AC_HELP_STRING([--with-logdir=DIR],
 651                [Directory where to write logfiles.]),
 652                [ logdir=`echo $withval | sed 's/\/$//'`
 653                  AC_MSG_RESULT(yes)],
 654                [ AS_IF([test "x$enable_fhs_paths" = "xyes"],
 655                         [logdir='${localstatedir}/log/${PACKAGE_TARNAME}'],
 656                         [logdir='${prefix}/logs'])
 657                  AC_MSG_RESULT(no)])
 658 AC_DEFINE_DIR([LOG_DIR], [logdir], [Prefix where to write logfiles.])
 659 AC_SUBST_DIR([logdir])
 660
 661 dnl **********************************************************************
 662 dnl Check for --with-helpdir
 663 dnl **********************************************************************
 664
 665 AC_MSG_CHECKING([whether to modify helpdir])
 666 AC_ARG_WITH(helpdir,
 667 AC_HELP_STRING([--with-helpdir=DIR],
 668                [Directory to install help files.]),
 669                [ helpdir=`echo $withval | sed 's/\/$//'`
 670                  AC_MSG_RESULT(yes) ],
 671                [ AS_IF([test "x$enable_fhs_paths" = "xyes"],
 672                         [helpdir='${datadir}/${PACKAGE_TARNAME}/help'],
 673                         [helpdir='${prefix}/help'])
 674                  AC_MSG_RESULT(no) ])
 675 AC_DEFINE_DIR([HELP_DIR], [helpdir], [Prefix where help files are installed.])
 676 AC_SUBST_DIR([helpdir])
 677
 678 dnl **********************************************************************
 679 dnl Check for --with-moduledir
 680 dnl **********************************************************************
 681
 682 AC_MSG_CHECKING([whether to modify moduledir])
 683 AC_ARG_WITH(moduledir,
 684         [AC_HELP_STRING([--with-moduledir=DIR],
 685                [Directory to install modules.])],
 686                [ moduledir=`echo $withval | sed 's/\/$//'`
 687                  AC_MSG_RESULT(yes)],
 688                [ AS_IF([test "x$enable_fhs_paths" = "xyes"],
 689                         [moduledir='${pkglibdir}/modules'],
 690                         [moduledir='${prefix}/modules'])
 691                  AC_MSG_RESULT(no)
 692                 ])
 693 AC_DEFINE_DIR(MODULE_DIR, moduledir, [Prefix where modules are installed.])
 694 AC_SUBST_DIR([moduledir])
 695
 696 dnl Check for --with-rundir
 697
 698 AC_MSG_CHECKING([whether or modify rundir])
 699 AC_ARG_WITH([rundir],
 700         [AC_HELP_STRING([--with-rundir=DIR],
 701                 [Directory in which to store pidfile.])],
 702         [AC_MSG_RESULT([yes])
 703         rundir=`echo $withval | sed 's/\/$//'`],
 704         [AC_MSG_RESULT([no])
 705         AS_IF([test "x$enable_fhs_paths" = "xyes"],
 706                 [rundir='${prefix}/run'],
 707                 [rundir='${sysconfdir}'])])
 708 AC_SUBST([rundir])
 709 AC_DEFINE_DIR([PKGRUNDIR], [pkgrundir], [Directory to store pidfile in.])
 710
 711 dnl Installed utility program prefixes (does not affect binaries
 712 dnl installed into pkglibexecdir)
 713 AC_MSG_CHECKING([for program prefix])
 714 AC_ARG_WITH([program-prefix],
 715         [AS_HELP_STRING([--with-program-prefix=], [If set, programs installed into PATH will be installed with names prefixed by this prefix.])],
 716         [test "x$with_program_prefix" = "xno" && with_program_prefix=],
 717         [with_program_prefix=])
 718 AC_MSG_RESULT(["$with_program_prefix"])
 719 PROGRAM_PREFIX="$with_program_prefix"
 720 AC_SUBST([PROGRAM_PREFIX])
 721 AC_DEFINE_UNQUOTED([PROGRAM_PREFIX], ["$with_program_prefix"], [String with which all programs intended to be in PATH are prefixed.])
 722
 723 dnl **********************************************************************
 724 dnl Branding
 725 dnl **********************************************************************
 726
 727 AC_MSG_CHECKING([whether custom branding is requested])
 728 AC_ARG_WITH(custom-branding,
 729 AC_HELP_STRING([--with-custom-branding=NAME],
 730                [Custom branding name.]),
 731                [BRANDING_NAME=$withval
 732                 AC_MSG_RESULT([yes])],
 733                [BRANDING_NAME=$PACKAGE_NAME
 734                 AC_MSG_RESULT([no])]
 735 )
 736
 737 AC_MSG_CHECKING([whether a custom version is requested])
 738 AC_ARG_WITH(custom-version,
 739 AC_HELP_STRING([--with-custom-version=NAME],
 740                [Custom version branding.]),
 741                [BRANDING_VERSION=$withval
 742                 AC_MSG_RESULT([yes])],
 743                [BRANDING_VERSION=$PACKAGE_VERSION
 744                 AC_MSG_RESULT([no])]
 745 )
 746
 747 AC_DEFINE_UNQUOTED(BRANDING_NAME, ["$BRANDING_NAME"], [Custom branding name.])
 748 AC_DEFINE_UNQUOTED(BRANDING_VERSION, ["$BRANDING_VERSION"], [Custom branding name.])
 749
 750 if test "x$BRANDING_NAME" != "x$PACKAGE_NAME"; then
 751         AC_DEFINE(CUSTOM_BRANDING, 1, [Define if custom branding is enabled.])
 752 fi
 753
 754 if test ! -z "$SELECT_TYPE_EXPLICIT"; then
 755         SELECT_TYPE="$SELECT_TYPE_EXPLICIT";
 756         echo "Forcing $SELECT_TYPE to be enabled"
 757 else
 758
 759 if test ! "x$use_ports" = "xno"; then
 760         AC_CHECK_FUNCS(port_getn, [haveports=yes], [haveports=no])
 761         if test "x$haveports" = "xyes" ; then
 762                 SELECT_TYPE="ports"
 763         fi
 764 fi
 765
 766 if test ! "x$use_select" = "xno"; then
 767         AC_CHECK_FUNCS(select, [haveselect=yes], [haveselect=no])
 768         if test "x$haveselect" = "xyes" ; then
 769                 SELECT_TYPE="select"
 770         fi
 771 fi
 772
 773 if test ! "x$use_poll" = "xno"; then
 774         AC_CHECK_FUNCS(poll, [havepoll=yes], [havepoll=no])
 775         if test "x$havepoll" = "xyes" ; then
 776                 SELECT_TYPE="poll"
 777         fi
 778 fi
 779
 780 if test ! "x$use_kqueue" = "xno"; then
 781         AC_CHECK_FUNCS(kevent, [havekqueue=yes], [havekqueue=no])
 782         if test "x$havekqueue" = "xyes" ; then
 783                 SELECT_TYPE="kqueue"
 784         fi
 785 fi
 786
 787 if test ! "x$use_epoll" = "xno"; then
 788         AC_CHECK_FUNCS(epoll_ctl, [haveepoll=yes], [haveepoll=no])
 789         if test "x$ac_cv_header_sys_epoll_h" = "xyes"; then
 790                 if test "x$haveepoll" = "xyes" ; then
 791                         AC_MSG_CHECKING(for epoll support in kernel)
 792                         AC_TRY_RUN(
 793 #include <stdint.h>
 794 #include <sys/param.h>
 795 #include <sys/types.h>
 796 #include <sys/epoll.h>
 797 #include <sys/syscall.h>
 798 #include <unistd.h>
 799
 800 int
 801 main(int argc, char **argv)
 802 {
 803         int epfd;
 804
 805         epfd = epoll_create(256);
 806         return (epfd == -1 ? 1 : 0);
 807 }, [AC_MSG_RESULT(yes)
 808             AC_DEFINE(HAVE_EPOLL, 1,
 809                 [Define if your system supports the epoll system calls])
 810             SELECT_TYPE="epoll"],
 811             AC_MSG_RESULT(no), AC_MSG_RESULT(no))
 812                 fi
 813         fi
 814
 815 haveepollsyscall=no
 816
 817 if test "x$ac_cv_header_sys_epoll_h" = "xyes"; then
 818         if test "x$haveepoll" = "xno" ; then
 819                 AC_MSG_CHECKING(for epoll system call)
 820                 AC_TRY_RUN(
 821 #include <stdint.h>
 822 #include <sys/param.h>
 823 #include <sys/types.h>
 824 #include <sys/epoll.h>
 825 #include <sys/syscall.h>
 826 #include <unistd.h>
 827
 828 int
 829 epoll_create(int size)
 830 {
 831         return (syscall(__NR_epoll_create, size));
 832 }
 833
 834 int
 835 main(int argc, char **argv)
 836 {
 837         int epfd;
 838
 839         epfd = epoll_create(256);
 840         exit (epfd == -1 ? 1 : 0);
 841 }, [AC_MSG_RESULT(yes)
 842     AC_DEFINE(HAVE_EPOLL, 1,
 843         [Define if your system supports the epoll system calls])
 844     SELECT_TYPE="epoll"],
 845     AC_MSG_RESULT(no), AC_MSG_RESULT(no))
 846         fi
 847 fi
 848
 849 fi
 850
 851 fi
 852
 853 if test -z "$SELECT_TYPE"; then
 854         AC_MSG_ERROR([Unable to find a usable IO interface],)
 855 fi
 856
 857 echo "Using $SELECT_TYPE for select loop."
 858
 859 AC_DEFINE_UNQUOTED(SELECT_TYPE, "$SELECT_TYPE", [This is the type of IO loop we are using])
 860 AC_SUBST(SELECT_TYPE)
 861
 862
 863 dnl Debug-related options
 864 dnl =====================
 865
 866 AC_ARG_ENABLE(assert,
 867 AC_HELP_STRING([--enable-assert],[Enable assert(). Choose between soft(warnings) and hard(aborts the daemon)]),
 868 [assert=$enableval], [assert=no])
 869
 870 if test "$assert" = no; then
 871         AC_DEFINE(NDEBUG, 1, [Define this to disable debugging support.])
 872 elif test "$assert" = soft; then
 873         AC_DEFINE(SOFT_ASSERT, 1, [Define this to enable soft asserts.])
 874         AC_DEFINE(NDEBUG, 1, [Define this to disable debugging support.])
 875 elif test "$assert" = yes; then
 876         assert = "hard";
 877 fi
 878
 879 AC_MSG_CHECKING(if you want IO Debugging hooks)
 880 AC_ARG_ENABLE(iodebug,
 881 AC_HELP_STRING([--enable-iodebug],[Enable IO Debugging hooks]),
 882 [iodebug=$enableval], [iodebug=no])
 883
 884 if test "$iodebug" = yes; then
 885         AC_DEFINE(USE_IODEBUG_HOOKS, 1, [Define this to enable IO Debug hooks.])
 886         AC_MSG_RESULT(yes)
 887 else
 888         AC_MSG_RESULT(no)
 889 fi
 890
 891
 892 AC_MSG_CHECKING(if you want to do a profile build)
 893 AC_ARG_ENABLE(profile,
 894 AC_HELP_STRING([--enable-profile],[Enable profiling]),
 895 [profile=$enableval], [profile=no])
 896
 897 if test "$profile" = yes; then
 898         if test "$ac_cv_c_compiler_gnu" = yes; then
 899                 IRC_CFLAGS="$IRC_CFLAGS -pg"
 900                 AC_MSG_RESULT([yes, adding -pg])
 901                 AC_DEFINE(CHARYBDIS_PROFILE, 1, [Define this if you are profiling.])
 902         else
 903                 AC_MSG_RESULT([no, profile builds only work with gcc])
 904         fi
 905 else
 906         AC_MSG_RESULT(no)
 907 fi
 908
 909 AC_ARG_ENABLE(balloc,
 910 AC_HELP_STRING([--disable-balloc],[Disable the block allocator.]),
 911 [balloc=$enableval], [balloc=yes])
 912
 913 if test "$balloc" = no; then
 914         AC_DEFINE([NOBALLOC], 1, [Define to 1 if you wish to disable the block allocator.])
 915 fi
 916
 917 AC_ARG_ENABLE(small-net,
 918 AC_HELP_STRING([--enable-small-net],[Enable small network support.]),
 919 [small_net=$enableval], [small_net=no])
 920
 921 if test "$small_net" = yes; then
 922 dnl     AC_DEFINE([HASHSIZE], 4096, [Max number of buckets in hash tables.])
 923         AC_DEFINE([NICKNAMEHISTORYLENGTH], 1500, [Size of the WHOWAS array.])
 924         AC_DEFINE([CHANNEL_HEAP_SIZE], 256, [Size of the channel heap.])
 925         AC_DEFINE([BAN_HEAP_SIZE], 128, [Size of the ban heap.])
 926         AC_DEFINE([CLIENT_HEAP_SIZE], 256, [Size of the client heap.])
 927         AC_DEFINE([LCLIENT_HEAP_SIZE], 128, [Size of the local client heap.])
 928         AC_DEFINE([PCLIENT_HEAP_SIZE], 32, [Size of the pre-client heap.])
 929         AC_DEFINE([USER_HEAP_SIZE], 128, [Size of the user heap.])
 930         AC_DEFINE([DNODE_HEAP_SIZE], 256, [Size of the dlink_node heap.])
 931         AC_DEFINE([TOPIC_HEAP_SIZE], 256, [Size of the topic heap.])
 932         AC_DEFINE([LINEBUF_HEAP_SIZE], 128, [Size of the linebuf heap.])
 933         AC_DEFINE([MEMBER_HEAP_SIZE], 256, [Sizeof member heap.])
 934         AC_DEFINE([ND_HEAP_SIZE], 128, [Size of the nick delay heap.])
 935         AC_DEFINE([CONFITEM_HEAP_SIZE], 128, [Size of the confitem heap.])
 936         AC_DEFINE([MONITOR_HEAP_SIZE], 128, [Size of the monitor heap.])
 937         AC_DEFINE([FD_HEAP_SIZE], 128, [Size of fd heap.])
 938         AC_DEFINE([AWAY_HEAP_SIZE], 128, [Size of away heap.])
 939 else
 940 dnl These settings are for a large network like efnet..they will use lots of memory
 941 dnl so enable small net unless you really need this much support
 942         AC_DEFINE([NICKNAMEHISTORYLENGTH], 15000, [Size of the WHOWAS array.])
 943         AC_DEFINE([CHANNEL_HEAP_SIZE], 8192, [Size of the channel heap.])
 944         AC_DEFINE([BAN_HEAP_SIZE], 4096, [Size of the ban heap.])
 945         AC_DEFINE([CLIENT_HEAP_SIZE], 8192, [Size of the client heap.])
 946         AC_DEFINE([LCLIENT_HEAP_SIZE], 1024, [Size of the local client heap.])
 947         AC_DEFINE([PCLIENT_HEAP_SIZE], 256, [Size of the pre-client heap.])
 948         AC_DEFINE([USER_HEAP_SIZE], 8192, [Size of the user heap.])
 949         AC_DEFINE([DNODE_HEAP_SIZE], 8192, [Size of the dlink_node heap.])
 950         AC_DEFINE([TOPIC_HEAP_SIZE], 4096, [Size of the topic heap.])
 951         AC_DEFINE([LINEBUF_HEAP_SIZE], 2048, [Size of the linebuf heap.])
 952         AC_DEFINE([MEMBER_HEAP_SIZE], 32768, [Sizeof member heap.])
 953         AC_DEFINE([ND_HEAP_SIZE], 512, [Size of the nick delay heap.])
 954         AC_DEFINE([CONFITEM_HEAP_SIZE], 256, [Size of the confitem heap.])
 955         AC_DEFINE([MONITOR_HEAP_SIZE], 1024, [Size of the monitor heap.])
 956         AC_DEFINE([FD_HEAP_SIZE], 1024, [Size of fd heap.])
 957         AC_DEFINE([AWAY_HEAP_SIZE], 512, [Size of away heap.])
 958 fi
 959
 960 AC_ARG_WITH(nicklen,
 961 AC_HELP_STRING([--with-nicklen=LENGTH],[Set the upper-bound nick length to LENGTH (default 31, max 50)]),
 962 [
 963   if ! expr "$withval" + 0 >/dev/null 2>&1; then
 964         AC_ERROR([NICKLEN must be a numeric value])
 965   fi
 966   if test $withval -gt 50; then
 967         NICKLEN=50
 968         AC_MSG_WARN([NICKLEN has a hard limit of 50. Setting NICKLEN=50])
 969   elif test $withval -lt 9; then
 970         NICKLEN=9
 971         AC_MSG_WARN([NICKLEN has a lower limit of 9. Setting NICKLEN=9])
 972   else
 973         NICKLEN="$withval"
 974   fi
 975 ], [NICKLEN=31])
 976
 977 AC_ARG_WITH(topiclen,
 978 AC_HELP_STRING([--with-topiclen=NUMBER],[Set the max topic length to NUMBER (default 390, max 390)]),
 979 [
 980  if test $withval -ge 390; then
 981         TOPICLEN=390
 982         AC_MSG_WARN([TOPICLEN has a hard limit of 390. Setting TOPICLEN=390])
 983  else
 984         TOPICLEN=$withval
 985  fi
 986 ], [TOPICLEN=390])
 987
 988 AC_DEFINE_UNQUOTED(TOPICLEN, ${TOPICLEN}, [Maximum topic length (<=390)])
 989 AC_DEFINE_UNQUOTED(NICKLEN, (${NICKLEN}+1), [Nickname length])
 990
 991 shared_modules="yes"
 992 dnl Some first-stage sanity checks.
 993 if test "$shared_modules" = yes; then
 994         dnl TenDRA's cc is called tcc too.
 995         if test "$CC" = tcc -a "$TenDRA" = "no"; then
 996                 AC_MSG_WARN([disabling shared modules: Tiny C Compiler can't create PIC])
 997                 shared_modules="no"
 998         fi
 999 fi
1000
1001 dnl Second stage: check for functions and headers.
1002 if test "$shared_modules" = yes; then
1003         DYNLINK_C=dynlink.c
1004         AC_CHECK_HEADERS(dlfcn.h)
1005         AC_SEARCH_LIBS(shl_load, dld,
1006         [
1007           AC_DEFINE(HAVE_SHL_LOAD, 1, [Define if the shl_load function is available.])
1008           SUFFIX=".sl"
1009           MOD_TARGET=hpux_shared
1010           SEDOBJ="s/\.o/.sl/g"
1011         ],
1012         dnl !shl_load:
1013         [
1014           dnl standard dlopen
1015           AC_SEARCH_LIBS(dlopen, [dl c_r],
1016           [
1017             AC_DEFINE(HAVE_DLOPEN, 1, [Define if the dlopen function is available.])
1018             SUFFIX=".so"
1019             MOD_TARGET=shared_modules
1020             SEDOBJ="s/\.o/.so/g"
1021             if test "$AppleGCC" = yes; then
1022               AC_CHECK_HEADERS([mach-o/dyld.h])
1023             fi
1024             AC_CHECK_FUNC(dlsym, ,
1025             [
1026               AC_MSG_WARN([dlsym is not available, shared modules disabled])
1027               shared_modules=no
1028             ])
1029             AC_CHECK_FUNCS(dlfunc)
1030           ],
1031           [
1032             shared_modules=no
1033           ])
1034         ])
1035 fi
1036
1037 AC_DEFINE_UNQUOTED(SHARED_SUFFIX, "$SUFFIX", [Suffix for shared libraries on this platform.])
1038
1039 dnl Third stage - wrangling the linker.
1040 if test "$shared_modules" = yes; then
1041         # The GNU linker requires the -export-dynamic option to make
1042         # all symbols visible in the dynamic symbol table.
1043         hold_ldflags=$LDFLAGS
1044         AC_MSG_CHECKING(for the ld -export-dynamic flag)
1045         LDFLAGS="${LDFLAGS} -Wl,-export-dynamic -Werror"
1046         AC_LINK_IFELSE(AC_LANG_PROGRAM([],[int i;]), found=yes, found=no)
1047         LDFLAGS=$hold_ldflags
1048
1049         if expr "`uname -s`" : ^IRIX >/dev/null 2>&1; then
1050                 found="no, IRIX ld uses -B,dynamic"
1051                 LDFLAGS="${LDFLAGS} -Wl,-B,dynamic"
1052         fi
1053
1054         if expr "`uname -s`" : ^AIX >/dev/null 2>&1; then
1055                 found="no, AIX ld uses -G -brtl"
1056                 LDFLAGS="${LDFLAGS} -Wl,-G,-brtl"
1057         fi
1058
1059         AC_MSG_RESULT($found)
1060
1061         if test "$found" = yes; then
1062                 LDFLAGS="${LDFLAGS} -Wl,-export-dynamic"
1063         fi
1064
1065         AC_MSG_CHECKING(for compiler option to produce PIC)
1066         dnl The order should be here to check for groups of compilers,
1067         dnl then for odd compilers, then if no PICFLAGS were set up,
1068         dnl check for GCC and set defaults, or else error. -jmallett
1069         if test "$SGS" = "yes"; then
1070                 AC_MSG_RESULT([SVR4 SGS interfaces: -KPIC -DPIC -G])
1071                 PICFLAGS="-KPIC -DPIC -G"
1072         fi
1073
1074         if test "$AppleGCC" = "yes"; then
1075                 AC_MSG_RESULT([Darwin Mach-O bundles: -fno-common -bundle -flat_namespace -undefined suppress])
1076                 PICFLAGS="-fno-common -bundle -flat_namespace -undefined suppress"
1077         fi
1078         dnl Please note, that on HPUX two different stages of module compilation occurs, since
1079         dnl while compiling modules, the compiler does not allow you to give arguments
1080         dnl to the linker. (I did not design this)
1081         dnl So we need -c in the first stage of module compilation.
1082         dnl In the second stage, we link the modules via ld -b.
1083         dnl Additionally, HPUX does not like -export-dynamic, it likes -E instead.
1084         dnl -TimeMr14C
1085         if test "$HPUX" = "yes" -a "$CC" != gcc; then
1086                 AC_MSG_RESULT(HP-UX cc: +z -r -q -n)
1087                 PICFLAGS="+z -r -q -n -c"
1088                 AC_MSG_CHECKING([if +ESfic is required on this platform])
1089
1090                 if expr "`$CC +ESfic 2>&1`" : ".*neither supported.*" >/dev/null; then
1091                         AC_MSG_RESULT(no)
1092                 else
1093                         AC_MSG_RESULT(yes)
1094                         PICFLAGS="$PICFLAGS +ESfic"
1095                 fi
1096
1097                 LDFLAGS="${LDFLAGS} -Wl,-E"
1098         fi
1099         if test "$Tru" = yes -a "$CC" != gcc; then
1100                 AC_MSG_RESULT([Tru64: -shared -expect_unresolved '*'])
1101                 PICFLAGS="-shared -expect_unresolved '*' "
1102                 LDFLAGS="-call_shared"
1103         fi
1104         if test -z "$PICFLAGS"; then
1105                 if test "$ac_cv_c_compiler_gnu" = "yes"; then
1106                         AC_MSG_RESULT(gcc: -fPIC -DPIC -shared)
1107                         PICFLAGS="-fPIC -DPIC -shared"
1108                 else
1109                         AC_MSG_RESULT(no)
1110                         shared_modules=no
1111                 fi
1112         fi
1113 fi
1114
1115 # rpath, for finding libratbox.so at run time
1116 hold_ldflags=$LDFLAGS
1117 AC_MSG_CHECKING(for the ld -rpath flag)
1118 LDFLAGS="${LDFLAGS} -Wl,-rpath=${libdir}"
1119 AC_LINK_IFELSE(AC_LANG_PROGRAM([],[int i;]), found=yes, found=no)
1120 LDFLAGS=$hold_ldflags
1121 AC_MSG_RESULT($found)
1122 if test "$found" = yes; then
1123         LDFLAGS="${LDFLAGS} -Wl,-rpath=\${libdir}"
1124 fi
1125
1126 # This must be down here, or it will mess up checks like the ones
1127 # for -Wl,-export-dynamic
1128 # -- jilles
1129 CWARNS=""
1130 AC_ARG_ENABLE(warnings,
1131 AC_HELP_STRING([--enable-warnings],[Enable all sorts of warnings for debugging.]),
1132 [
1133 IRC_CFLAGS="$IRC_CFLAGS -O0"
1134 CFLAGS="$IRC_CFLAGS"
1135
1136 CHARYBDIS_C_GCC_TRY_FLAGS([-Wall], charybdis_cv_c_gcc_w_all)
1137 CHARYBDIS_C_GCC_TRY_FLAGS([-Wpointer-arith], charybdis_cv_c_gcc_w_pointer_arith)
1138 CHARYBDIS_C_GCC_TRY_FLAGS([-Wimplicit -Wnested-externs], charybdis_cv_c_gcc_w_implicit)
1139 CHARYBDIS_C_GCC_TRY_FLAGS([-Wcast-align], charybdis_cv_c_gcc_w_cast_align)
1140 CHARYBDIS_C_GCC_TRY_FLAGS([-Wcast-qual], charybdis_cv_c_gcc_w_cast_qual)
1141 CHARYBDIS_C_GCC_TRY_FLAGS([-Wwrite-strings], charybdis_cv_c_gcc_w_write_strings)
1142 CHARYBDIS_C_GCC_TRY_FLAGS([-Werror-implicit-function-declaration], charybdis_cv_c_gcc_w_error_implicit_function_declaration)
1143 CHARYBDIS_C_GCC_TRY_FLAGS([-Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations], charybdis_cv_c_gcc_prototypes)
1144 CHARYBDIS_C_GCC_TRY_FLAGS([-Wparenthesis], charybdis_cv_c_gcc_parenthesis)
1145 CHARYBDIS_C_GCC_TRY_FLAGS([-W -Wno-unused], charybdis_cv_c_gcc_w)
1146 CHARYBDIS_C_GCC_TRY_FLAGS([-Wextra], charybdis_cv_c_gcc_w_extra)
1147 CHARYBDIS_C_GCC_TRY_FLAGS([-Wshadow], charybdis_cv_c_gcc_w_shadow)
1148 CHARYBDIS_C_GCC_TRY_FLAGS([-Wmissing-noreturn], charybdis_cv_c_gcc_w_missing_noreturn)
1149 CHARYBDIS_C_GCC_TRY_FLAGS([-Wundef], charybdis_cv_c_gcc_w_undef)
1150 CHARYBDIS_C_GCC_TRY_FLAGS([-Wpacked], charybdis_cv_c_gcc_w_packed)
1151 CHARYBDIS_C_GCC_TRY_FLAGS([-Wnested-externs], charybdis_cv_c_gcc_w_nested_externs)
1152 CHARYBDIS_C_GCC_TRY_FLAGS([-Wunused-function -Wunused-label -Wunused-value -Wunused-variable], charybdis_cv_c_gcc_w_unused)
1153 CHARYBDIS_C_GCC_TRY_FLAGS([-Wredundant-decls], charybdis_cv_c_gcc_w_redundant_decls)
1154 CHARYBDIS_C_GCC_TRY_FLAGS([-Wfloat-equal], charybdis_cv_c_gcc_w_float_equal)
1155 CHARYBDIS_C_GCC_TRY_FLAGS([-Wformat -Wformat-y2k -Wno-format-security], charybdis_cv_c_gcc_w_format)
1156
1157 IRC_CFLAGS="$CFLAGS"
1158 ],[])
1159
1160 if test "$shared_modules" = no; then
1161         DYNLINK_C=""
1162         MOD_TARGET="libmodules.a"
1163         MODULES_LIBS="../modules/libmodules.a"
1164         SEDOBJ=""
1165         AC_DEFINE(STATIC_MODULES, 1, [Define to 1 if dynamic modules can't be used.])
1166         AC_MSG_WARN([shared module support has been disabled!])
1167 fi
1168
1169 dnl Stage 5 - underscores in front of symbol names.
1170 if test "$shared_modules" = yes; then
1171
1172         AC_CHECK_FUNC(nlist,,
1173                 AC_CHECK_LIB(dl, nlist, nlist_lib="-ldl",
1174                         AC_CHECK_LIB(elf, nlist, nlist_lib="-lelf",)
1175                 )
1176         )
1177
1178         dnl We need to find out whether underscores are appended to symbol
1179         dnl names in executable files.  First, though, we need to see
1180         dnl where nlist.h is hiding.
1181         AC_CHECK_HEADER(libelf/nlist.h, [ nlist_h="libelf/nlist.h" ], )
1182         AC_CHECK_HEADER(elf/nlist.h, [ nlist_h="elf/nlist.h" ], )
1183         AC_CHECK_HEADER(nlist.h, [ nlist_h="nlist.h" ], )
1184         if test x"$nlist_h" = "x"; then
1185                 AC_DEFINE_UNQUOTED(SYMBOL_PREFIX, "", [String containing extra underscores prepended to symbols loaded from modules.])
1186         else
1187                 AC_MSG_CHECKING(for extra underscores prepended to symbol names)
1188                 AC_CACHE_VAL(symbol_underscores,
1189                 [
1190 cat << EOF > conftest.c
1191 #include <$nlist_h>
1192 #include <stdio.h>
1193 #include <stdlib.h>
1194 void _modinit(void);
1195 int main(int argc, char *argv[[]]) {
1196         int i;
1197         struct nlist nl[[5]];
1198
1199         /* fill the names in this way, so it'll work almost everywhere */
1200         nl[[0]].n_name = "_modinit";
1201         nl[[1]].n_name = "__modinit";
1202         nl[[2]].n_name = "___modinit";
1203         nl[[3]].n_name = "____modinit";
1204         nl[[0]].n_value = nl[[1]].n_value = nl[[2]].n_value = nl[[3]].n_value = nl[[4]].n_name = NULL;
1205
1206         if(argc < 2 || (nlist(argv[[1]], nl)) == -1) exit(-1);
1207         for(i = 0; i < 4; i++) {
1208                 if(nl[[i]].n_value != NULL)
1209                 {
1210                         int j;
1211                         for(j = 0; j < i; j++)
1212                                 printf("_");
1213                         exit(i);
1214                 }
1215         }
1216         exit(-1);
1217 }
1218 void _modinit(void) { return; }
1219 EOF
1220                 $CC $CPPFLAGS $IRC_CFLAGS -o conftest conftest.c $nlist_lib >/dev/null 2>&1
1221                 symbol_underscores=`./conftest conftest`
1222                 AC_MSG_RESULT($symbol_underscores)
1223                 $RM -f conftest conftest.c
1224                 ])
1225                 AC_DEFINE_UNQUOTED(SYMBOL_PREFIX, "${symbol_underscores}", [String containing extra underscores prepended to symbols loaded from modules.])
1226         fi
1227 fi
1228
1229 IRC_CFLAGS="$IRC_CFLAGS $CWARNS"
1230
1231 AC_SUBST(MODULES_LIBS)
1232 AC_SUBST(MOD_TARGET)
1233
1234 AC_SUBST(SSL_SRCS_ENABLE)
1235 AC_SUBST(SSL_INCLUDES)
1236 AC_SUBST(SSL_LIBS)
1237
1238 AC_SUBST(LDFLAGS)
1239 AC_SUBST(PICFLAGS)
1240 AC_SUBST(IRC_CFLAGS)
1241 AC_SUBST(SEDOBJ)
1242
1243
1244 if test "$prefix" = "NONE"; then
1245         AC_DEFINE_UNQUOTED(IRCD_PREFIX, "$ac_default_prefix", [Prefix where the ircd is installed.])
1246
1247 else
1248
1249 dnl Don't get bitten by Cygwin's stupidity if the user specified
1250 dnl a custom prefix with a trailing slash
1251
1252         prefix=`echo $prefix | sed 's/\/$//'`
1253         AC_DEFINE_UNQUOTED(IRCD_PREFIX, "$prefix", [Prefix where the ircd is installed.])
1254
1255 fi
1256
1257 AC_CONFIG_FILES(                        \
1258         Makefile                        \
1259         bandb/Makefile                  \
1260         ssld/Makefile                   \
1261         extensions/Makefile             \
1262         src/Makefile                    \
1263         modules/Makefile                \
1264         tools/Makefile                  \
1265         tools/genssl                    \
1266         doc/Makefile                    \
1267         help/Makefile                   \
1268 )
1269 AC_CONFIG_COMMANDS([tools/genssl_chmod], [chmod 755 tools/genssl])
1270
1271 AC_OUTPUT
1272
1273 if test "$cf_openssl_version_ok" = yes; then
1274         openssl="yes"
1275 else
1276         openssl="no"
1277 fi
1278
1279 if test "$shared_modules" = yes; then
1280         modules=shared
1281 else
1282         modules=static
1283 fi
1284
1285 echo "
1286 Configuration of ${BRANDING_NAME}-${BRANDING_VERSION}:
1287         Install directory  : $prefix
1288
1289         Ziplinks           : $zlib
1290         OpenSSL            : $openssl
1291         Socket Engine      : $SELECT_TYPE
1292         Small network      : $small_net
1293         Block allocator    : $balloc
1294
1295         Nickname length    : $NICKLEN
1296         Topic length       : $TOPICLEN
1297
1298 Use (g)make to compile $BRANDING_NAME, then (g)make install to install it.
1299 "