contrib/unbound/configure.ac

   1 #                                               -*- Autoconf -*-
   2 # Process this file with autoconf to produce a configure script.
   3 AC_PREREQ(2.56)
   4 sinclude(acx_nlnetlabs.m4)
   5 sinclude(ax_pthread.m4)
   6 sinclude(acx_python.m4)
   7 sinclude(ac_pkg_swig.m4)
   8 sinclude(dnstap/dnstap.m4)
   9 sinclude(dnscrypt/dnscrypt.m4)
  10
  11 # must be numbers. ac_defun because of later processing
  12 m4_define([VERSION_MAJOR],[1])
  13 m4_define([VERSION_MINOR],[7])
  14 m4_define([VERSION_MICRO],[0])
  15 AC_INIT(unbound, m4_defn([VERSION_MAJOR]).m4_defn([VERSION_MINOR]).m4_defn([VERSION_MICRO]), unbound-bugs@nlnetlabs.nl, unbound)
  16 AC_SUBST(UNBOUND_VERSION_MAJOR, [VERSION_MAJOR])
  17 AC_SUBST(UNBOUND_VERSION_MINOR, [VERSION_MINOR])
  18 AC_SUBST(UNBOUND_VERSION_MICRO, [VERSION_MICRO])
  19
  20 LIBUNBOUND_CURRENT=7
  21 LIBUNBOUND_REVISION=8
  22 LIBUNBOUND_AGE=5
  23 # 1.0.0 had 0:12:0
  24 # 1.0.1 had 0:13:0
  25 # 1.0.2 had 0:14:0
  26 # 1.1.0 had 0:15:0
  27 # 1.1.1 had 0:16:0
  28 # 1.2.0 had 0:17:0
  29 # 1.2.1 had 0:18:0
  30 # 1.3.0 had 1:0:0   # ub_cancel and -export-symbols.
  31 # 1.3.1 had 1:1:0
  32 # 1.3.2 had 1:2:0
  33 # 1.3.3 had 1:3:0
  34 # 1.3.4 had 1:4:0
  35 # 1.4.0-snapshots had 1:5:0
  36 # 1.4.0 had 1:5:0 (not 2:0:0)   # ub_result.why_bogus
  37 # 1.4.1 had 2:1:0
  38 # 1.4.2 had 2:2:0
  39 # 1.4.3 had 2:3:0
  40 # 1.4.4 had 2:4:0
  41 # 1.4.5 had 2:5:0
  42 # 1.4.6 had 2:6:0
  43 # 1.4.7 had 2:7:0
  44 # 1.4.8 had 2:8:0
  45 # 1.4.9 had 2:9:0
  46 # 1.4.10 had 2:10:0
  47 # 1.4.11 had 2:11:0
  48 # 1.4.12 had 2:12:0
  49 # 1.4.13 had 2:13:0
  50 # and 1.4.13p1 and 1.4.13.p2
  51 # 1.4.14 had 2:14:0
  52 # 1.4.15 had 3:0:1 # adds ub_version()
  53 # 1.4.16 had 3:1:1
  54 # 1.4.17 had 3:2:1
  55 # 1.4.18 had 3:3:1
  56 # 1.4.19 had 3:4:1
  57 # 1.4.20 had 4:0:2 # adds libunbound.ttl # but shipped 3:5:1
  58 # 1.4.21 had 4:1:2
  59 # 1.4.22 had 4:1:2
  60 # 1.5.0 had 5:3:3 # adds ub_ctx_add_ta_autr
  61 # 1.5.1 had 5:3:3
  62 # 1.5.2 had 5:5:3
  63 # 1.5.3 had 5:6:3
  64 # 1.5.4 had 5:7:3
  65 # 1.5.5 had 5:8:3
  66 # 1.5.6 had 5:9:3
  67 # 1.5.7 had 5:10:3
  68 # 1.5.8 had 6:0:4 # adds ub_ctx_set_stub
  69 # 1.5.9 had 6:1:4
  70 # 1.5.10 had 6:2:4
  71 # 1.6.0 had 6:3:4
  72 # 1.6.1 had 7:0:5 # ub_callback_t typedef renamed to ub_callback_type
  73 # 1.6.2 had 7:1:5
  74 # 1.6.3 had 7:2:5
  75 # 1.6.4 had 7:3:5
  76 # 1.6.5 had 7:4:5
  77 # 1.6.6 had 7:5:5
  78 # 1.6.7 had 7:6:5
  79 # 1.6.8 had 7:7:5
  80 # 1.7.0 had 7:8:5
  81
  82 #   Current  -- the number of the binary API that we're implementing
  83 #   Revision -- which iteration of the implementation of the binary
  84 #               API are we supplying?
  85 #   Age      -- How many previous binary API versions do we also
  86 #               support?
  87 #
  88 # If we release a new version that does not change the binary API,
  89 # increment Revision.
  90 #
  91 # If we release a new version that changes the binary API, but does
  92 # not break programs compiled against the old binary API, increment
  93 # Current and Age.  Set Revision to 0, since this is the first
  94 # implementation of the new API.
  95 #
  96 # Otherwise, we're changing the binary API and breaking backward
  97 # compatibility with old binaries.  Increment Current.  Set Age to 0,
  98 # since we're backward compatible with no previous APIs.  Set Revision
  99 # to 0 too.
 100 AC_SUBST(LIBUNBOUND_CURRENT)
 101 AC_SUBST(LIBUNBOUND_REVISION)
 102 AC_SUBST(LIBUNBOUND_AGE)
 103
 104 CFLAGS="$CFLAGS"
 105 AC_AIX
 106 if test "$ac_cv_header_minix_config_h" = "yes"; then
 107         AC_DEFINE(_NETBSD_SOURCE,1, [Enable for compile on Minix])
 108 fi
 109
 110 dnl
 111 dnl By default set prefix to /usr/local
 112 dnl
 113 case "$prefix" in
 114         NONE)
 115                 prefix="/usr/local"
 116         ;;
 117 esac
 118 case "$exec_prefix" in
 119         NONE)
 120                 exec_prefix="$prefix"
 121         ;;
 122 esac
 123
 124 # are we on MinGW?
 125 if uname -s 2>&1 | grep MINGW32 >/dev/null; then on_mingw="yes"
 126 else
 127         if echo $host $target | grep mingw32 >/dev/null; then on_mingw="yes"
 128         else on_mingw="no"; fi
 129 fi
 130
 131 #
 132 # Determine configuration file
 133 # the eval is to evaluate shell expansion twice
 134 UNBOUND_SBIN_DIR=`eval echo "${sbindir}"`
 135 AC_SUBST(UNBOUND_SBIN_DIR)
 136 UNBOUND_SYSCONF_DIR=`eval echo "${sysconfdir}"`
 137 AC_SUBST(UNBOUND_SYSCONF_DIR)
 138 UNBOUND_LOCALSTATE_DIR=`eval echo "${localstatedir}"`
 139 AC_SUBST(UNBOUND_LOCALSTATE_DIR)
 140 if test $on_mingw = "no"; then
 141   ub_conf_file=`eval echo "${sysconfdir}/unbound/unbound.conf"`
 142 else
 143   ub_conf_file="C:\\Program Files\\Unbound\\service.conf"
 144 fi
 145 AC_ARG_WITH([conf_file],
 146         AC_HELP_STRING([--with-conf-file=path],
 147         [Pathname to the Unbound configuration file]),
 148         [ub_conf_file="$withval"])
 149 AC_SUBST(ub_conf_file)
 150 ACX_ESCAPE_BACKSLASH($ub_conf_file, hdr_config)
 151 AC_DEFINE_UNQUOTED(CONFIGFILE, ["$hdr_config"], [Pathname to the Unbound configuration file])
 152 ub_conf_dir=`AS_DIRNAME(["$ub_conf_file"])`
 153 AC_SUBST(ub_conf_dir)
 154
 155 # Determine run, chroot directory and pidfile locations
 156 AC_ARG_WITH(run-dir,
 157     AC_HELP_STRING([--with-run-dir=path],
 158     [set default directory to chdir to (by default dir part of cfg file)]),
 159     UNBOUND_RUN_DIR="$withval",
 160 if test $on_mingw = no; then
 161     UNBOUND_RUN_DIR=`dirname "$ub_conf_file"`
 162 else
 163     UNBOUND_RUN_DIR=""
 164 fi
 165 )
 166 AC_SUBST(UNBOUND_RUN_DIR)
 167 ACX_ESCAPE_BACKSLASH($UNBOUND_RUN_DIR, hdr_run)
 168 AC_DEFINE_UNQUOTED(RUN_DIR, ["$hdr_run"], [Directory to chdir to])
 169
 170 AC_ARG_WITH(chroot-dir,
 171     AC_HELP_STRING([--with-chroot-dir=path],
 172     [set default directory to chroot to (by default same as run-dir)]),
 173     UNBOUND_CHROOT_DIR="$withval",
 174 if test $on_mingw = no; then
 175     UNBOUND_CHROOT_DIR="$UNBOUND_RUN_DIR"
 176 else
 177     UNBOUND_CHROOT_DIR=""
 178 fi
 179 )
 180 AC_SUBST(UNBOUND_CHROOT_DIR)
 181 ACX_ESCAPE_BACKSLASH($UNBOUND_CHROOT_DIR, hdr_chroot)
 182 AC_DEFINE_UNQUOTED(CHROOT_DIR, ["$hdr_chroot"], [Directory to chroot to])
 183
 184 AC_ARG_WITH(share-dir,
 185     AC_HELP_STRING([--with-share-dir=path],
 186     [set default directory with shared data (by default same as share/unbound)]),
 187     UNBOUND_SHARE_DIR="$withval",
 188     UNBOUND_SHARE_DIR="$UNBOUND_RUN_DIR")
 189 AC_SUBST(UNBOUND_SHARE_DIR)
 190 AC_DEFINE_UNQUOTED(SHARE_DIR, ["$UNBOUND_SHARE_DIR"], [Shared data])
 191
 192 AC_ARG_WITH(pidfile,
 193     AC_HELP_STRING([--with-pidfile=filename],
 194     [set default pathname to unbound pidfile (default run-dir/unbound.pid)]),
 195     UNBOUND_PIDFILE="$withval",
 196 if test $on_mingw = no; then
 197     UNBOUND_PIDFILE="$UNBOUND_RUN_DIR/unbound.pid"
 198 else
 199     UNBOUND_PIDFILE=""
 200 fi
 201 )
 202 AC_SUBST(UNBOUND_PIDFILE)
 203 ACX_ESCAPE_BACKSLASH($UNBOUND_PIDFILE, hdr_pid)
 204 AC_DEFINE_UNQUOTED(PIDFILE, ["$hdr_pid"], [default pidfile location])
 205
 206 AC_ARG_WITH(rootkey-file,
 207     AC_HELP_STRING([--with-rootkey-file=filename],
 208     [set default pathname to root key file (default run-dir/root.key). This file is read and written.]),
 209     UNBOUND_ROOTKEY_FILE="$withval",
 210 if test $on_mingw = no; then
 211     UNBOUND_ROOTKEY_FILE="$UNBOUND_RUN_DIR/root.key"
 212 else
 213     UNBOUND_ROOTKEY_FILE="C:\\Program Files\\Unbound\\root.key"
 214 fi
 215 )
 216 AC_SUBST(UNBOUND_ROOTKEY_FILE)
 217 ACX_ESCAPE_BACKSLASH($UNBOUND_ROOTKEY_FILE, hdr_rkey)
 218 AC_DEFINE_UNQUOTED(ROOT_ANCHOR_FILE, ["$hdr_rkey"], [default rootkey location])
 219
 220 AC_ARG_WITH(rootcert-file,
 221     AC_HELP_STRING([--with-rootcert-file=filename],
 222     [set default pathname to root update certificate file (default run-dir/icannbundle.pem).  This file need not exist if you are content with the builtin.]),
 223     UNBOUND_ROOTCERT_FILE="$withval",
 224 if test $on_mingw = no; then
 225     UNBOUND_ROOTCERT_FILE="$UNBOUND_RUN_DIR/icannbundle.pem"
 226 else
 227     UNBOUND_ROOTCERT_FILE="C:\\Program Files\\Unbound\\icannbundle.pem"
 228 fi
 229 )
 230 AC_SUBST(UNBOUND_ROOTCERT_FILE)
 231 ACX_ESCAPE_BACKSLASH($UNBOUND_ROOTCERT_FILE, hdr_rpem)
 232 AC_DEFINE_UNQUOTED(ROOT_CERT_FILE, ["$hdr_rpem"], [default rootcert location])
 233
 234 AC_ARG_WITH(username,
 235     AC_HELP_STRING([--with-username=user],
 236     [set default user that unbound changes to (default user is unbound)]),
 237     UNBOUND_USERNAME="$withval",
 238     UNBOUND_USERNAME="unbound")
 239 AC_SUBST(UNBOUND_USERNAME)
 240 AC_DEFINE_UNQUOTED(UB_USERNAME, ["$UNBOUND_USERNAME"], [default username])
 241
 242 AC_DEFINE(WINVER, 0x0502, [the version of the windows API enabled])
 243 ACX_RSRC_VERSION(wnvs)
 244 AC_DEFINE_UNQUOTED(RSRC_PACKAGE_VERSION, [$wnvs], [version number for resource files])
 245
 246 # Checks for typedefs, structures, and compiler characteristics.
 247 AC_C_CONST
 248 AC_LANG_C
 249 # allow user to override the -g -O2 flags.
 250 default_cflags=no
 251 if test "x$CFLAGS" = "x" ; then
 252 ACX_CHECK_COMPILER_FLAG(g, [CFLAGS="$CFLAGS -g"])
 253 ACX_CHECK_COMPILER_FLAG(O2, [CFLAGS="$CFLAGS -O2"])
 254 default_cflags=yes
 255 fi
 256 AC_PROG_CC
 257 ACX_DEPFLAG
 258 ACX_DETERMINE_EXT_FLAGS_UNBOUND
 259
 260 # debug mode flags warnings
 261 AC_ARG_ENABLE(checking, AC_HELP_STRING([--enable-checking], [Enable warnings, asserts, makefile-dependencies]))
 262 AC_ARG_ENABLE(debug, AC_HELP_STRING([--enable-debug], [same as enable-checking]))
 263 if test "$enable_debug" = "yes"; then debug_enabled="$enable_debug";
 264 else debug_enabled="$enable_checking"; fi
 265 AC_SUBST(debug_enabled)
 266 case "$debug_enabled" in
 267         yes)
 268                 ACX_CHECK_COMPILER_FLAG(W, [CFLAGS="$CFLAGS -W"])
 269                 ACX_CHECK_COMPILER_FLAG(Wall, [CFLAGS="$CFLAGS -Wall"])
 270                 ACX_CHECK_COMPILER_FLAG(Wextra, [CFLAGS="$CFLAGS -Wextra"])
 271                 ACX_CHECK_COMPILER_FLAG(Wdeclaration-after-statement, [CFLAGS="$CFLAGS -Wdeclaration-after-statement"])
 272                 AC_DEFINE([UNBOUND_DEBUG], [], [define this to enable debug checks.])
 273                 ;;
 274         no|*)
 275                 # nothing to do.
 276                 ;;
 277 esac
 278 if test "$default_cflags" = "yes"; then
 279         # only when CFLAGS was "" at the start, if the users wants to
 280         # override we shouldn't add default cflags, because they wouldn't
 281         # be able to turn off these options and set the CFLAGS wanted.
 282         ACX_CHECK_FLTO
 283         ACX_CHECK_PIE
 284         ACX_CHECK_RELRO_NOW
 285 fi
 286
 287 AC_C_INLINE
 288 ACX_CHECK_FORMAT_ATTRIBUTE
 289 ACX_CHECK_UNUSED_ATTRIBUTE
 290
 291 AC_DEFUN([CHECK_WEAK_ATTRIBUTE],
 292 [AC_REQUIRE([AC_PROG_CC])
 293 AC_MSG_CHECKING(whether the C compiler (${CC-cc}) accepts the "weak" attribute)
 294 AC_CACHE_VAL(ac_cv_c_weak_attribute,
 295 [ac_cv_c_weak_attribute=no
 296 AC_TRY_COMPILE(
 297 [ #include <stdio.h>
 298 __attribute__((weak)) void f(int x) { printf("%d", x); }
 299 ], [
 300    f(1);
 301 ],
 302 [ac_cv_c_weak_attribute="yes"],
 303 [ac_cv_c_weak_attribute="no"])
 304 ])
 305
 306 AC_MSG_RESULT($ac_cv_c_weak_attribute)
 307 if test $ac_cv_c_weak_attribute = yes; then
 308   AC_DEFINE(HAVE_ATTR_WEAK, 1, [Whether the C compiler accepts the "weak" attribute])
 309 fi
 310 ])dnl End of CHECK_WEAK_ATTRIBUTE
 311
 312 CHECK_WEAK_ATTRIBUTE
 313
 314 if test "$srcdir" != "."; then
 315         CPPFLAGS="$CPPFLAGS -I$srcdir"
 316 fi
 317
 318 AC_DEFUN([ACX_YYLEX_DESTROY], [
 319         AC_MSG_CHECKING([for yylex_destroy])
 320         if echo %% | $LEX -t 2>&1 | grep yylex_destroy >/dev/null 2>&1; then
 321                 AC_DEFINE(LEX_HAS_YYLEX_DESTROY, 1, [if lex has yylex_destroy])
 322                 AC_MSG_RESULT(yes)
 323         else AC_MSG_RESULT(no); fi
 324 ])
 325
 326 AC_PROG_LEX
 327 ACX_YYLEX_DESTROY
 328 AC_PROG_YACC
 329 AC_CHECK_PROG(doxygen, doxygen, doxygen)
 330 AC_CHECK_TOOL(STRIP, strip)
 331 ACX_LIBTOOL_C_ONLY
 332
 333 # Checks for header files.
 334 AC_CHECK_HEADERS([stdarg.h stdbool.h netinet/in.h netinet/tcp.h sys/param.h sys/socket.h sys/un.h sys/uio.h sys/resource.h arpa/inet.h syslog.h netdb.h sys/wait.h pwd.h glob.h grp.h login_cap.h winsock2.h ws2tcpip.h endian.h sys/ipc.h sys/shm.h],,, [AC_INCLUDES_DEFAULT])
 335
 336 # check for types.
 337 # Using own tests for int64* because autoconf builtin only give 32bit.
 338 AC_CHECK_TYPE(int8_t, signed char)
 339 AC_CHECK_TYPE(int16_t, short)
 340 AC_CHECK_TYPE(int32_t, int)
 341 AC_CHECK_TYPE(int64_t, long long)
 342 AC_CHECK_TYPE(uint8_t, unsigned char)
 343 AC_CHECK_TYPE(uint16_t, unsigned short)
 344 AC_CHECK_TYPE(uint32_t, unsigned int)
 345 AC_CHECK_TYPE(uint64_t, unsigned long long)
 346 AC_TYPE_SIZE_T
 347 AC_CHECK_TYPE(ssize_t, int)
 348 AC_TYPE_UID_T
 349 AC_TYPE_PID_T
 350 AC_TYPE_OFF_T
 351 ACX_TYPE_U_CHAR
 352 ACX_TYPE_RLIM_T
 353 ACX_TYPE_SOCKLEN_T
 354 ACX_TYPE_IN_ADDR_T
 355 ACX_TYPE_IN_PORT_T
 356 ACX_CHECK_MEMCMP_SIGNED
 357
 358 AC_CHECK_SIZEOF(time_t,,[
 359 AC_INCLUDES_DEFAULT
 360 #ifdef TIME_WITH_SYS_TIME
 361 # include <sys/time.h>
 362 # include <time.h>
 363 #else
 364 # ifdef HAVE_SYS_TIME_H
 365 #  include <sys/time.h>
 366 # else
 367 #  include <time.h>
 368 # endif
 369 #endif
 370 ])
 371
 372 # add option to disable the evil rpath
 373 ACX_ARG_RPATH
 374 AC_SUBST(RUNTIME_PATH)
 375
 376 # check to see if libraries are needed for these functions.
 377 AC_SEARCH_LIBS([inet_pton], [nsl])
 378 AC_SEARCH_LIBS([socket], [socket])
 379
 380 # check wether strptime also works
 381 AC_DEFUN([AC_CHECK_STRPTIME_WORKS],
 382 [AC_REQUIRE([AC_PROG_CC])
 383 AC_MSG_CHECKING(whether strptime works)
 384 if test c${cross_compiling} = cno; then
 385 AC_RUN_IFELSE([AC_LANG_SOURCE([[
 386 #define _XOPEN_SOURCE 600
 387 #include <time.h>
 388 int main(void) { struct tm tm; char *res;
 389 res = strptime("2010-07-15T00:00:00+00:00", "%t%Y%t-%t%m%t-%t%d%tT%t%H%t:%t%M%t:%t%S%t", &tm);
 390 if (!res) return 2;
 391 res = strptime("20070207111842", "%Y%m%d%H%M%S", &tm);
 392 if (!res) return 1; return 0; }
 393 ]])] , [eval "ac_cv_c_strptime_works=yes"], [eval "ac_cv_c_strptime_works=no"])
 394 else
 395 eval "ac_cv_c_strptime_works=maybe"
 396 fi
 397 AC_MSG_RESULT($ac_cv_c_strptime_works)
 398 if test $ac_cv_c_strptime_works = no; then
 399 AC_LIBOBJ(strptime)
 400 else
 401 AC_DEFINE_UNQUOTED([STRPTIME_WORKS], 1, [use default strptime.])
 402 fi
 403 ])dnl
 404
 405 # check some functions of the OS before linking libs (while still runnable).
 406 AC_FUNC_CHOWN
 407 AC_FUNC_FORK
 408 AC_TYPE_SIGNAL
 409 AC_FUNC_FSEEKO
 410 ACX_SYS_LARGEFILE
 411 ACX_CHECK_NONBLOCKING_BROKEN
 412 ACX_MKDIR_ONE_ARG
 413 AC_CHECK_FUNCS([strptime],[AC_CHECK_STRPTIME_WORKS],[AC_LIBOBJ([strptime])])
 414
 415 # set memory allocation checking if requested
 416 AC_ARG_ENABLE(alloc-checks, AC_HELP_STRING([--enable-alloc-checks],
 417         [ enable to memory allocation statistics, for debug purposes ]),
 418         , )
 419 AC_ARG_ENABLE(alloc-lite, AC_HELP_STRING([--enable-alloc-lite],
 420         [ enable for lightweight alloc assertions, for debug purposes ]),
 421         , )
 422 AC_ARG_ENABLE(alloc-nonregional, AC_HELP_STRING([--enable-alloc-nonregional],
 423         [ enable nonregional allocs, slow but exposes regional allocations to other memory purifiers, for debug purposes ]),
 424         , )
 425 if test x_$enable_alloc_nonregional = x_yes; then
 426         AC_DEFINE(UNBOUND_ALLOC_NONREGIONAL, 1, [use malloc not regions, for debug use])
 427 fi
 428 if test x_$enable_alloc_checks = x_yes; then
 429         AC_DEFINE(UNBOUND_ALLOC_STATS, 1, [use statistics for allocs and frees, for debug use])
 430 else
 431         if test x_$enable_alloc_lite = x_yes; then
 432                 AC_DEFINE(UNBOUND_ALLOC_LITE, 1, [use to enable lightweight alloc assertions, for debug use])
 433         else
 434                 ACX_FUNC_MALLOC([unbound])
 435         fi
 436 fi
 437
 438 # check windows threads (we use them, not pthreads, on windows).
 439 if test "$on_mingw" = "yes"; then
 440 # check windows threads
 441         AC_CHECK_HEADERS([windows.h],,, [AC_INCLUDES_DEFAULT])
 442         AC_MSG_CHECKING([for CreateThread])
 443         AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
 444 #ifdef HAVE_WINDOWS_H
 445 #include <windows.h>
 446 #endif
 447 ], [
 448         HANDLE t = CreateThread(NULL, 0, NULL, NULL, 0, NULL);
 449 ])],
 450         AC_MSG_RESULT(yes)
 451         AC_DEFINE(HAVE_WINDOWS_THREADS, 1, [Using Windows threads])
 452 ,
 453         AC_MSG_RESULT(no)
 454 )
 455
 456 else
 457 # not on mingw, check thread libraries.
 458
 459 # check for thread library.
 460 # check this first, so that the pthread lib does not get linked in via
 461 # libssl or libpython, and thus distorts the tests, and we end up using
 462 # the non-threadsafe C libraries.
 463 AC_ARG_WITH(pthreads, AC_HELP_STRING([--with-pthreads],
 464  [use pthreads library, or --without-pthreads to disable threading support.]),
 465  [ ],[ withval="yes" ])
 466 ub_have_pthreads=no
 467 if test x_$withval != x_no; then
 468         AX_PTHREAD([
 469                 AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.])
 470                 if test -n "$PTHREAD_LIBS"; then
 471                   LIBS="$PTHREAD_LIBS $LIBS"
 472                 fi
 473                 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
 474                 CC="$PTHREAD_CC"
 475                 ub_have_pthreads=yes
 476                 AC_CHECK_TYPES([pthread_spinlock_t, pthread_rwlock_t],,,[#include <pthread.h>])
 477
 478                 if echo "$CFLAGS" | $GREP -e "-pthread" >/dev/null; then
 479                 AC_MSG_CHECKING([if -pthread unused during linking])
 480                 # catch clang warning 'argument unused during compilation'
 481                 AC_LANG_CONFTEST([AC_LANG_SOURCE(AC_INCLUDES_DEFAULT
 482 [[
 483 int main(void) {return 0;}
 484 ]])])
 485                 pthread_unused="yes"
 486                 # first compile
 487                 echo "$CC $CFLAGS -c conftest.c -o conftest.o" >&AS_MESSAGE_LOG_FD
 488                 $CC $CFLAGS -c conftest.c -o conftest.o 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD
 489                 if test $? = 0; then
 490                         # then link
 491                         echo "$CC $CFLAGS -Werror $LDFLAGS $LIBS -o conftest contest.o" >&AS_MESSAGE_LOG_FD
 492                         $CC $CFLAGS -Werror $LDFLAGS $LIBS -o conftest conftest.o 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD
 493                         if test $? -ne 0; then
 494                                 AC_MSG_RESULT(yes)
 495                                 CFLAGS=`echo "$CFLAGS" | sed -e 's/-pthread//'`
 496                                 PTHREAD_CFLAGS_ONLY="-pthread"
 497                                 AC_SUBST(PTHREAD_CFLAGS_ONLY)
 498                         else
 499                                 AC_MSG_RESULT(no)
 500                         fi
 501                 else
 502                         AC_MSG_RESULT(no)
 503                 fi # endif cc successful
 504                 rm -f conftest conftest.c conftest.o
 505                 fi # endif -pthread in CFLAGS
 506
 507                 ])
 508 fi
 509
 510 # check solaris thread library
 511 AC_ARG_WITH(solaris-threads, AC_HELP_STRING([--with-solaris-threads],
 512         [use solaris native thread library.]), [ ],[ withval="no" ])
 513 ub_have_sol_threads=no
 514 if test x_$withval != x_no; then
 515         if test x_$ub_have_pthreads != x_no; then
 516             AC_WARN([Have pthreads already, ignoring --with-solaris-threads])
 517         else
 518         AC_SEARCH_LIBS(thr_create, [thread],
 519         [
 520                 AC_DEFINE(HAVE_SOLARIS_THREADS, 1, [Using Solaris threads])
 521
 522                 ACX_CHECK_COMPILER_FLAG(mt, [CFLAGS="$CFLAGS -mt"],
 523                         [CFLAGS="$CFLAGS -D_REENTRANT"])
 524                 ub_have_sol_threads=yes
 525         ] , [
 526                 AC_ERROR([no solaris threads found.])
 527         ])
 528         fi
 529 fi
 530
 531 fi # end of non-mingw check of thread libraries
 532
 533 # Check for PyUnbound
 534 AC_ARG_WITH(pyunbound,
 535    AC_HELP_STRING([--with-pyunbound],
 536    [build PyUnbound, or --without-pyunbound to skip it. (default=no)]),
 537    [], [ withval="no" ])
 538
 539 ub_test_python=no
 540 ub_with_pyunbound=no
 541 if test x_$withval != x_no; then
 542    ub_with_pyunbound=yes
 543    ub_test_python=yes
 544 fi
 545
 546 # Check for Python module
 547 AC_ARG_WITH(pythonmodule,
 548    AC_HELP_STRING([--with-pythonmodule],
 549    [build Python module, or --without-pythonmodule to disable script engine. (default=no)]),
 550    [], [ withval="no" ])
 551
 552 ub_with_pythonmod=no
 553 if test x_$withval != x_no; then
 554    ub_with_pythonmod=yes
 555    ub_test_python=yes
 556 fi
 557
 558 # Check for Python & SWIG only on PyUnbound or PyModule
 559 if test x_$ub_test_python != x_no; then
 560
 561    # Check for Python
 562    ub_have_python=no
 563    ac_save_LIBS="$LIBS" dnl otherwise AC_PYTHON_DEVEL thrashes $LIBS
 564    AC_PYTHON_DEVEL
 565    if test ! -z "$PYTHON_VERSION"; then
 566         if test `$PYTHON -c "print('$PYTHON_VERSION' >= '2.4.0')"` = "False"; then
 567                 AC_ERROR([Python version >= 2.4.0 is required])
 568         fi
 569
 570       [PY_MAJOR_VERSION="`$PYTHON -c \"import sys; print(sys.version_info[0])\"`"]
 571       AC_SUBST(PY_MAJOR_VERSION)
 572       # Have Python
 573       AC_DEFINE(HAVE_PYTHON,1,[Define if you have Python libraries and header files.])
 574       if test -n "$LIBS"; then
 575         LIBS="$PYTHON_LDFLAGS $LIBS"
 576       else
 577         LIBS="$PYTHON_LDFLAGS"
 578       fi
 579       if test -n "$CPPFLAGS"; then
 580         CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
 581       else
 582         CPPFLAGS="$PYTHON_CPPFLAGS"
 583       fi
 584       ub_have_python=yes
 585       PC_PY_DEPENDENCY="python"
 586       AC_SUBST(PC_PY_DEPENDENCY)
 587
 588       # Check for SWIG
 589       ub_have_swig=no
 590       AC_ARG_ENABLE(swig-version-check, AC_HELP_STRING([--disable-swig-version-check], [Disable swig version check to build python modules with older swig even though that is unreliable]))
 591       if test "$enable_swig_version_check" = "yes"; then
 592         AC_PROG_SWIG(2.0.1)
 593       else
 594         AC_PROG_SWIG
 595       fi
 596       AC_MSG_CHECKING(SWIG)
 597       if test ! -x "$SWIG"; then
 598          AC_ERROR([failed to find swig tool, install it, or do not build Python module and PyUnbound])
 599       else
 600          AC_DEFINE(HAVE_SWIG, 1, [Define if you have Swig libraries and header files.])
 601          AC_SUBST(swig, "$SWIG")
 602          AC_MSG_RESULT(present)
 603
 604          # If have Python & SWIG
 605          # Declare PythonMod
 606          if test x_$ub_with_pythonmod != x_no; then
 607             AC_DEFINE(WITH_PYTHONMODULE, 1, [Define if you want Python module.])
 608             WITH_PYTHONMODULE=yes
 609             AC_SUBST(WITH_PYTHONMODULE)
 610             PYTHONMOD_OBJ="pythonmod.lo pythonmod_utils.lo"
 611             AC_SUBST(PYTHONMOD_OBJ)
 612             PYTHONMOD_HEADER='$(srcdir)/pythonmod/pythonmod.h'
 613             AC_SUBST(PYTHONMOD_HEADER)
 614             PYTHONMOD_INSTALL=pythonmod-install
 615             AC_SUBST(PYTHONMOD_INSTALL)
 616             PYTHONMOD_UNINSTALL=pythonmod-uninstall
 617             AC_SUBST(PYTHONMOD_UNINSTALL)
 618          fi
 619
 620          # Declare PyUnbound
 621          if test x_$ub_with_pyunbound != x_no; then
 622             AC_DEFINE(WITH_PYUNBOUND, 1, [Define if you want PyUnbound.])
 623             WITH_PYUNBOUND=yes
 624             AC_SUBST(WITH_PYUNBOUND)
 625             PYUNBOUND_OBJ="libunbound_wrap.lo"
 626             AC_SUBST(PYUNBOUND_OBJ)
 627             PYUNBOUND_TARGET="_unbound.la"
 628             AC_SUBST(PYUNBOUND_TARGET)
 629             PYUNBOUND_INSTALL=pyunbound-install
 630             AC_SUBST(PYUNBOUND_INSTALL)
 631             PYUNBOUND_UNINSTALL=pyunbound-uninstall
 632             AC_SUBST(PYUNBOUND_UNINSTALL)
 633          fi
 634       fi
 635    else
 636       AC_MSG_RESULT([*** Python libraries not found, won't build PythonMod or PyUnbound ***])
 637       ub_with_pyunbound=no
 638       ub_with_pythonmod=no
 639    fi
 640 fi
 641
 642 if test "`uname`" = "NetBSD"; then
 643         NETBSD_LINTFLAGS='"-D__RENAME(x)=" -D_NETINET_IN_H_'
 644         AC_SUBST(NETBSD_LINTFLAGS)
 645 fi
 646 CONFIG_DATE=`date +%Y%m%d`
 647 AC_SUBST(CONFIG_DATE)
 648
 649 # Checks for libraries.
 650
 651 # libnss
 652 USE_NSS="no"
 653 AC_ARG_WITH([nss], AC_HELP_STRING([--with-nss=path],
 654         [use libnss instead of openssl, installed at path.]),
 655         [
 656         USE_NSS="yes"
 657         AC_DEFINE(HAVE_NSS, 1, [Use libnss for crypto])
 658         if test "$withval" != "" -a "$withval" != "yes"; then
 659                 CPPFLAGS="$CPPFLAGS -I$withval/include/nss3"
 660                 LDFLAGS="$LDFLAGS -L$withval/lib"
 661                 ACX_RUNTIME_PATH_ADD([$withval/lib])
 662                 CPPFLAGS="-I$withval/include/nspr4 $CPPFLAGS"
 663         else
 664                 CPPFLAGS="$CPPFLAGS -I/usr/include/nss3"
 665                 CPPFLAGS="-I/usr/include/nspr4 $CPPFLAGS"
 666         fi
 667         LIBS="$LIBS -lnss3 -lnspr4"
 668         SSLLIB=""
 669         ]
 670 )
 671
 672 # libnettle
 673 USE_NETTLE="no"
 674 AC_ARG_WITH([nettle], AC_HELP_STRING([--with-nettle=path],
 675         [use libnettle as crypto library, installed at path.]),
 676         [
 677         USE_NETTLE="yes"
 678         AC_DEFINE(HAVE_NETTLE, 1, [Use libnettle for crypto])
 679         AC_CHECK_HEADERS([nettle/dsa-compat.h],,, [AC_INCLUDES_DEFAULT])
 680         if test "$withval" != "" -a "$withval" != "yes"; then
 681                 CPPFLAGS="$CPPFLAGS -I$withval/include/nettle"
 682                 LDFLAGS="$LDFLAGS -L$withval/lib"
 683                 ACX_RUNTIME_PATH_ADD([$withval/lib])
 684         else
 685                 CPPFLAGS="$CPPFLAGS -I/usr/include/nettle"
 686         fi
 687         LIBS="$LIBS -lhogweed -lnettle -lgmp"
 688         SSLLIB=""
 689         ]
 690 )
 691
 692 # openssl
 693 if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
 694 ACX_WITH_SSL
 695 ACX_LIB_SSL
 696 SSLLIB="-lssl"
 697
 698 # check if -lcrypt32 is needed because CAPIENG needs that. (on windows)
 699 BAKLIBS="$LIBS"
 700 LIBS="-lssl $LIBS"
 701 AC_MSG_CHECKING([if libssl needs -lcrypt32])
 702 AC_TRY_LINK_FUNC([HMAC_Update], [
 703         AC_MSG_RESULT([no])
 704         LIBS="$BAKLIBS"
 705 ], [
 706         AC_MSG_RESULT([yes])
 707         LIBS="$BAKLIBS"
 708         LIBS="$LIBS -lcrypt32"
 709 ])
 710
 711 AC_MSG_CHECKING([for LibreSSL])
 712 if grep VERSION_TEXT $ssldir/include/openssl/opensslv.h | grep "LibreSSL" >/dev/null; then
 713         AC_MSG_RESULT([yes])
 714         AC_DEFINE([HAVE_LIBRESSL], [1], [Define if we have LibreSSL])
 715         # libressl provides these compat functions, but they may also be
 716         # declared by the OS in libc.  See if they have been declared.
 717         AC_CHECK_DECLS([strlcpy,strlcat,arc4random,arc4random_uniform,reallocarray])
 718 else
 719         AC_MSG_RESULT([no])
 720 fi
 721 AC_CHECK_HEADERS([openssl/conf.h openssl/engine.h openssl/bn.h openssl/dh.h openssl/dsa.h openssl/rsa.h],,, [AC_INCLUDES_DEFAULT])
 722 AC_CHECK_FUNCS([OPENSSL_config EVP_sha1 EVP_sha256 EVP_sha512 FIPS_mode EVP_MD_CTX_new OpenSSL_add_all_digests OPENSSL_init_crypto EVP_cleanup ERR_load_crypto_strings CRYPTO_cleanup_all_ex_data ERR_free_strings RAND_cleanup DSA_SIG_set0 EVP_dss1 EVP_DigestVerify])
 723
 724 # these check_funcs need -lssl
 725 BAKLIBS="$LIBS"
 726 LIBS="-lssl $LIBS"
 727 AC_CHECK_FUNCS([OPENSSL_init_ssl SSL_CTX_set_security_level SSL_set1_host SSL_get0_peername])
 728 LIBS="$BAKLIBS"
 729
 730 AC_CHECK_DECLS([SSL_COMP_get_compression_methods,sk_SSL_COMP_pop_free,SSL_CTX_set_ecdh_auto], [], [], [
 731 AC_INCLUDES_DEFAULT
 732 #ifdef HAVE_OPENSSL_ERR_H
 733 #include <openssl/err.h>
 734 #endif
 735
 736 #ifdef HAVE_OPENSSL_RAND_H
 737 #include <openssl/rand.h>
 738 #endif
 739
 740 #ifdef HAVE_OPENSSL_CONF_H
 741 #include <openssl/conf.h>
 742 #endif
 743
 744 #ifdef HAVE_OPENSSL_ENGINE_H
 745 #include <openssl/engine.h>
 746 #endif
 747 #include <openssl/ssl.h>
 748 #include <openssl/evp.h>
 749 ])
 750 fi
 751 AC_SUBST(SSLLIB)
 752
 753
 754 AC_ARG_ENABLE(sha1, AC_HELP_STRING([--disable-sha1], [Disable SHA1 RRSIG support, does not disable nsec3 support]))
 755 case "$enable_sha1" in
 756         no)
 757         ;;
 758         yes|*)
 759         AC_DEFINE([USE_SHA1], [1], [Define this to enable SHA1 support.])
 760         ;;
 761 esac
 762
 763
 764 AC_ARG_ENABLE(sha2, AC_HELP_STRING([--disable-sha2], [Disable SHA256 and SHA512 RRSIG support]))
 765 case "$enable_sha2" in
 766         no)
 767         ;;
 768         yes|*)
 769         AC_DEFINE([USE_SHA2], [1], [Define this to enable SHA256 and SHA512 support.])
 770         ;;
 771 esac
 772
 773 AC_ARG_ENABLE(subnet, AC_HELP_STRING([--enable-subnet], [Enable client subnet]))
 774 case "$enable_subnet" in
 775         yes)
 776         AC_DEFINE([CLIENT_SUBNET], [1], [Define this to enable client subnet option.])
 777         SUBNET_OBJ="edns-subnet.lo subnetmod.lo addrtree.lo subnet-whitelist.lo"
 778         AC_SUBST(SUBNET_OBJ)
 779         SUBNET_HEADER='$(srcdir)/edns-subnet/subnetmod.h $(srcdir)/edns-subnet/edns-subnet.h $(srcdir)/edns-subnet/subnet-whitelist.h $(srcdir)/edns-subnet/addrtree.h'
 780         AC_SUBST(SUBNET_HEADER)
 781         ;;
 782         no|*)
 783         ;;
 784 esac
 785
 786 # check wether gost also works
 787 AC_DEFUN([AC_CHECK_GOST_WORKS],
 788 [AC_REQUIRE([AC_PROG_CC])
 789 AC_MSG_CHECKING([if GOST works])
 790 if test c${cross_compiling} = cno; then
 791 BAKCFLAGS="$CFLAGS"
 792 if test -n "$ssldir"; then
 793         CFLAGS="$CFLAGS -Wl,-rpath,$ssldir/lib"
 794 fi
 795 AC_RUN_IFELSE([AC_LANG_SOURCE([[
 796 #include <string.h>
 797 #include <openssl/ssl.h>
 798 #include <openssl/evp.h>
 799 #include <openssl/engine.h>
 800 #include <openssl/conf.h>
 801 /* routine to load gost (from sldns) */
 802 int load_gost_id(void)
 803 {
 804         static int gost_id = 0;
 805         const EVP_PKEY_ASN1_METHOD* meth;
 806         ENGINE* e;
 807
 808         if(gost_id) return gost_id;
 809
 810         /* see if configuration loaded gost implementation from other engine*/
 811         meth = EVP_PKEY_asn1_find_str(NULL, "gost2001", -1);
 812         if(meth) {
 813                 EVP_PKEY_asn1_get0_info(&gost_id, NULL, NULL, NULL, NULL, meth);
 814                 return gost_id;
 815         }
 816
 817         /* see if engine can be loaded already */
 818         e = ENGINE_by_id("gost");
 819         if(!e) {
 820                 /* load it ourself, in case statically linked */
 821                 ENGINE_load_builtin_engines();
 822                 ENGINE_load_dynamic();
 823                 e = ENGINE_by_id("gost");
 824         }
 825         if(!e) {
 826                 /* no gost engine in openssl */
 827                 return 0;
 828         }
 829         if(!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
 830                 ENGINE_finish(e);
 831                 ENGINE_free(e);
 832                 return 0;
 833         }
 834
 835         meth = EVP_PKEY_asn1_find_str(&e, "gost2001", -1);
 836         if(!meth) {
 837                 /* algo not found */
 838                 ENGINE_finish(e);
 839                 ENGINE_free(e);
 840                 return 0;
 841         }
 842         EVP_PKEY_asn1_get0_info(&gost_id, NULL, NULL, NULL, NULL, meth);
 843         return gost_id;
 844 }
 845 int main(void) {
 846         EVP_MD_CTX* ctx;
 847         const EVP_MD* md;
 848         unsigned char digest[64]; /* its a 256-bit digest, so uses 32 bytes */
 849         const char* str = "Hello world";
 850         const unsigned char check[] = {
 851                 0x40 , 0xed , 0xf8 , 0x56 , 0x5a , 0xc5 , 0x36 , 0xe1 ,
 852                 0x33 , 0x7c , 0x7e , 0x87 , 0x62 , 0x1c , 0x42 , 0xe0 ,
 853                 0x17 , 0x1b , 0x5e , 0xce , 0xa8 , 0x46 , 0x65 , 0x4d ,
 854                 0x8d , 0x3e , 0x22 , 0x9b , 0xe1 , 0x30 , 0x19 , 0x9d
 855         };
 856         OPENSSL_config(NULL);
 857         (void)load_gost_id();
 858         md = EVP_get_digestbyname("md_gost94");
 859         if(!md) return 1;
 860         memset(digest, 0, sizeof(digest));
 861         ctx = EVP_MD_CTX_create();
 862         if(!ctx) return 2;
 863         if(!EVP_DigestInit_ex(ctx, md, NULL)) return 3;
 864         if(!EVP_DigestUpdate(ctx, str, 10)) return 4;
 865         if(!EVP_DigestFinal_ex(ctx, digest, NULL)) return 5;
 866         /* uncomment to see the hash calculated.
 867                 {int i;
 868                 for(i=0; i<32; i++)
 869                         printf(" %2.2x", (int)digest[i]);
 870                 printf("\n");}
 871         */
 872         if(memcmp(digest, check, sizeof(check)) != 0)
 873                 return 6;
 874         return 0;
 875 }
 876 ]])] , [eval "ac_cv_c_gost_works=yes"], [eval "ac_cv_c_gost_works=no"])
 877 CFLAGS="$BAKCFLAGS"
 878 else
 879 eval "ac_cv_c_gost_works=maybe"
 880 fi
 881 AC_MSG_RESULT($ac_cv_c_gost_works)
 882 ])dnl
 883
 884 AC_ARG_ENABLE(gost, AC_HELP_STRING([--disable-gost], [Disable GOST support]))
 885 use_gost="no"
 886 if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
 887 case "$enable_gost" in
 888         no)
 889         ;;
 890         *)
 891         AC_CHECK_FUNC(EVP_PKEY_set_type_str, [:],[AC_MSG_ERROR([OpenSSL 1.0.0 is needed for GOST support])])
 892         AC_CHECK_FUNC(EC_KEY_new, [], [AC_MSG_ERROR([OpenSSL does not support ECC, needed for GOST support])])
 893         AC_CHECK_GOST_WORKS
 894         if test "$ac_cv_c_gost_works" != no; then
 895                 use_gost="yes"
 896                 AC_DEFINE([USE_GOST], [1], [Define this to enable GOST support.])
 897         fi
 898         ;;
 899 esac
 900 fi dnl !USE_NSS && !USE_NETTLE
 901
 902 AC_ARG_ENABLE(ecdsa, AC_HELP_STRING([--disable-ecdsa], [Disable ECDSA support]))
 903 use_ecdsa="no"
 904 case "$enable_ecdsa" in
 905     no)
 906       ;;
 907     *)
 908       if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
 909               AC_CHECK_FUNC(ECDSA_sign, [], [AC_MSG_ERROR([OpenSSL does not support ECDSA: please upgrade or rerun with --disable-ecdsa])])
 910               AC_CHECK_FUNC(SHA384_Init, [], [AC_MSG_ERROR([OpenSSL does not support SHA384: please upgrade or rerun with --disable-ecdsa])])
 911               AC_CHECK_DECLS([NID_X9_62_prime256v1, NID_secp384r1], [], [AC_MSG_ERROR([OpenSSL does not support the ECDSA curves: please upgrade or rerun with --disable-ecdsa])], [AC_INCLUDES_DEFAULT
 912 #include <openssl/evp.h>
 913               ])
 914               # see if OPENSSL 1.0.0 or later (has EVP MD and Verify independency)
 915               AC_MSG_CHECKING([if openssl supports SHA2 and ECDSA with EVP])
 916               if grep OPENSSL_VERSION_TEXT $ssldir/include/openssl/opensslv.h | grep "OpenSSL" >/dev/null; then
 917                 if grep OPENSSL_VERSION_NUMBER $ssldir/include/openssl/opensslv.h | grep 0x0 >/dev/null; then
 918                   AC_MSG_RESULT([no])
 919                   AC_DEFINE_UNQUOTED([USE_ECDSA_EVP_WORKAROUND], [1], [Define this to enable an EVP workaround for older openssl])
 920                 else
 921                   AC_MSG_RESULT([yes])
 922                 fi
 923               else
 924                 # not OpenSSL, thus likely LibreSSL, which supports it
 925                 AC_MSG_RESULT([yes])
 926               fi
 927       fi
 928       # we now know we have ECDSA and the required curves.
 929       AC_DEFINE_UNQUOTED([USE_ECDSA], [1], [Define this to enable ECDSA support.])
 930       use_ecdsa="yes"
 931       ;;
 932 esac
 933
 934 AC_ARG_ENABLE(dsa, AC_HELP_STRING([--disable-dsa], [Disable DSA support]))
 935 use_dsa="no"
 936 case "$enable_dsa" in
 937     no)
 938       ;;
 939     *)
 940       # detect if DSA is supported, and turn it off if not.
 941       if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
 942       AC_CHECK_FUNC(DSA_SIG_new, [
 943       AC_CHECK_TYPE(DSA_SIG*, [
 944       AC_DEFINE_UNQUOTED([USE_DSA], [1], [Define this to enable DSA support.])
 945       ], [if test "x$enable_dsa" = "xyes"; then AC_MSG_ERROR([OpenSSL does not support DSA and you used --enable-dsa.])
 946                fi ], [
 947 AC_INCLUDES_DEFAULT
 948 #ifdef HAVE_OPENSSL_ERR_H
 949 #include <openssl/err.h>
 950 #endif
 951
 952 #ifdef HAVE_OPENSSL_RAND_H
 953 #include <openssl/rand.h>
 954 #endif
 955
 956 #ifdef HAVE_OPENSSL_CONF_H
 957 #include <openssl/conf.h>
 958 #endif
 959
 960 #ifdef HAVE_OPENSSL_ENGINE_H
 961 #include <openssl/engine.h>
 962 #endif
 963       ])
 964       ], [if test "x$enable_dsa" = "xyes"; then AC_MSG_ERROR([OpenSSL does not support DSA and you used --enable-dsa.])
 965                fi ])
 966       else
 967       AC_DEFINE_UNQUOTED([USE_DSA], [1], [Define this to enable DSA support.])
 968       fi
 969       ;;
 970 esac
 971
 972 AC_ARG_ENABLE(ed25519, AC_HELP_STRING([--disable-ed25519], [Disable ED25519 support]))
 973 use_ed25519="no"
 974 case "$enable_ed25519" in
 975     no)
 976       ;;
 977     *)
 978       if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
 979               AC_CHECK_DECLS([NID_ED25519], [
 980                 use_ed25519="yes"
 981               ], [ if test "x$enable_ed25519" = "xyes"; then AC_MSG_ERROR([OpenSSL does not support ED25519 and you used --enable-ed25519.])
 982                 fi ], [AC_INCLUDES_DEFAULT
 983 #include <openssl/evp.h>
 984               ])
 985       fi
 986       if test $USE_NETTLE = "yes"; then
 987                 AC_CHECK_HEADERS([nettle/eddsa.h], use_ed25519="yes",, [AC_INCLUDES_DEFAULT])
 988       fi
 989       if test $use_ed25519 = "yes"; then
 990                 AC_DEFINE_UNQUOTED([USE_ED25519], [1], [Define this to enable ED25519 support.])
 991       fi
 992       ;;
 993 esac
 994
 995 AC_ARG_ENABLE(event-api, AC_HELP_STRING([--enable-event-api], [Enable (experimental) pluggable event base libunbound API installed to unbound-event.h]))
 996 case "$enable_event_api" in
 997     yes)
 998       AC_SUBST(UNBOUND_EVENT_INSTALL, [unbound-event-install])
 999       AC_SUBST(UNBOUND_EVENT_UNINSTALL, [unbound-event-uninstall])
1000       ;;
1001     *)
1002       ;;
1003 esac
1004
1005 AC_ARG_ENABLE(tfo-client, AC_HELP_STRING([--enable-tfo-client], [Enable TCP Fast Open for client mode]))
1006 case "$enable_tfo_client" in
1007         yes)
1008                 case `uname` in
1009                         Linux) AC_CHECK_DECL([MSG_FASTOPEN], [AC_MSG_WARN([Check the platform specific TFO kernel parameters are correctly configured to support client mode TFO])],
1010                                              [AC_MSG_ERROR([TCP Fast Open is not available for client mode: please rerun without --enable-tfo-client])],
1011                                              [AC_INCLUDES_DEFAULT
1012 #include <netinet/tcp.h>
1013 ])
1014                                         AC_DEFINE_UNQUOTED([USE_MSG_FASTOPEN], [1], [Define this to enable client TCP Fast Open.])
1015                           ;;
1016                         Darwin) AC_CHECK_DECL([CONNECT_RESUME_ON_READ_WRITE], [AC_MSG_WARN([Check the platform specific TFO kernel parameters are correctly configured to support client mode TFO])],
1017                                               [AC_MSG_ERROR([TCP Fast Open is not available for client mode: please rerun without --enable-tfo-client])],
1018                                               [AC_INCLUDES_DEFAULT
1019 #include <sys/socket.h>
1020 ])
1021                                         AC_DEFINE_UNQUOTED([USE_OSX_MSG_FASTOPEN], [1], [Define this to enable client TCP Fast Open.])
1022                           ;;
1023                 esac
1024         ;;
1025         no|*)
1026                 ;;
1027 esac
1028
1029 AC_ARG_ENABLE(tfo-server, AC_HELP_STRING([--enable-tfo-server], [Enable TCP Fast Open for server mode]))
1030 case "$enable_tfo_server" in
1031         yes)
1032               AC_CHECK_DECL([TCP_FASTOPEN], [AC_MSG_WARN([Check the platform specific TFO kernel parameters are correctly configured to support server mode TFO])], [AC_MSG_ERROR([TCP Fast Open is not available for server mode: please rerun without --enable-tfo-server])], [AC_INCLUDES_DEFAULT
1033 #include <netinet/tcp.h>
1034               ])
1035                 AC_DEFINE_UNQUOTED([USE_TCP_FASTOPEN], [1], [Define this to enable server TCP Fast Open.])
1036                 ;;
1037         no|*)
1038                 ;;
1039 esac
1040
1041 # check for libevent
1042 AC_ARG_WITH(libevent, AC_HELP_STRING([--with-libevent=pathname],
1043     [use libevent (will check /usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr  or you can specify an explicit path). Slower, but allows use of large outgoing port ranges.]),
1044     [ ],[ withval="no" ])
1045 if test x_$withval = x_yes -o x_$withval != x_no; then
1046         AC_MSG_CHECKING(for libevent)
1047         if test x_$withval = x_ -o x_$withval = x_yes; then
1048             withval="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr"
1049         fi
1050         for dir in $withval; do
1051             thedir="$dir"
1052             if test -f "$dir/include/event.h" -o -f "$dir/include/event2/event.h"; then
1053                 found_libevent="yes"
1054                 dnl assume /usr is in default path.
1055                 if test "$thedir" != "/usr"; then
1056                     CPPFLAGS="$CPPFLAGS -I$thedir/include"
1057                 fi
1058                 break;
1059             fi
1060         done
1061         if test x_$found_libevent != x_yes; then
1062                 if test -f "$dir/event.h" -a \( -f "$dir/libevent.la" -o -f "$dir/libev.la" \) ; then
1063                         # libevent source directory
1064                         AC_MSG_RESULT(found in $thedir)
1065                         CPPFLAGS="$CPPFLAGS -I$thedir -I$thedir/include"
1066                         BAK_LDFLAGS_SET="1"
1067                         BAK_LDFLAGS="$LDFLAGS"
1068                         # remove evdns from linking
1069                         mkdir build >/dev/null 2>&1
1070                         mkdir build/libevent >/dev/null 2>&1
1071                         mkdir build/libevent/.libs >/dev/null 2>&1
1072                         ev_files_o=`ls $thedir/*.o | grep -v evdns\.o | grep -v bufferevent_openssl\.o`
1073                         ev_files_lo=`ls $thedir/*.lo | grep -v evdns\.lo | grep -v bufferevent_openssl\.lo`
1074                         ev_files_libso=`ls $thedir/.libs/*.o | grep -v evdns\.o | grep -v bufferevent_openssl\.o`
1075                         cp $ev_files_o build/libevent
1076                         cp $ev_files_lo build/libevent
1077                         cp $ev_files_libso build/libevent/.libs
1078                         LATE_LDFLAGS="build/libevent/*.lo -lm"
1079                         LDFLAGS="build/libevent/*.o $LDFLAGS -lm"
1080                 else
1081                         AC_MSG_ERROR([Cannot find the libevent library in $withval
1082 You can restart ./configure --with-libevent=no to use a builtin alternative.
1083 Please note that this alternative is not as capable as libevent when using
1084 large outgoing port ranges.  ])
1085                 fi
1086         else
1087             AC_MSG_RESULT(found in $thedir)
1088             dnl if event2 exists and no event lib in dir itself, use subdir
1089             if test ! -f $thedir/lib/libevent.a -a ! -f $thedir/lib/libevent.so -a -d "$thedir/lib/event2"; then
1090                     LDFLAGS="$LDFLAGS -L$thedir/lib/event2"
1091                     ACX_RUNTIME_PATH_ADD([$thedir/lib/event2])
1092             else
1093                     dnl assume /usr is in default path, do not add "".
1094                     if test "$thedir" != "/usr" -a "$thedir" != ""; then
1095                         LDFLAGS="$LDFLAGS -L$thedir/lib"
1096                         ACX_RUNTIME_PATH_ADD([$thedir/lib])
1097                     fi
1098             fi
1099         fi
1100         # check for library used by libevent after 1.3c
1101         AC_SEARCH_LIBS([clock_gettime], [rt])
1102
1103         # is the event.h header libev or libevent?
1104         AC_CHECK_HEADERS([event.h],,, [AC_INCLUDES_DEFAULT])
1105         AC_CHECK_DECL(EV_VERSION_MAJOR, [
1106                 AC_SEARCH_LIBS(event_set, [ev])
1107         ],[
1108                 AC_SEARCH_LIBS(event_set, [event])
1109         ],[AC_INCLUDES_DEFAULT
1110 #include <event.h>
1111         ])
1112         AC_CHECK_FUNCS([event_base_free]) # only in libevent 1.2 and later
1113         AC_CHECK_FUNCS([event_base_once]) # only in libevent 1.4.1 and later
1114         AC_CHECK_FUNCS([event_base_new]) # only in libevent 1.4.1 and later
1115         AC_CHECK_FUNCS([event_base_get_method]) # only in libevent 1.4.3 and later
1116         AC_CHECK_FUNCS([ev_loop]) # only in libev. (tested on 3.51)
1117         AC_CHECK_FUNCS([ev_default_loop]) # only in libev. (tested on 4.00)
1118         PC_LIBEVENT_DEPENDENCY="libevent"
1119         AC_SUBST(PC_LIBEVENT_DEPENDENCY)
1120         if test -n "$BAK_LDFLAGS_SET"; then
1121                 LDFLAGS="$BAK_LDFLAGS"
1122         fi
1123 else
1124         AC_DEFINE(USE_MINI_EVENT, 1, [Define if you want to use internal select based events])
1125 fi
1126
1127 # check for libexpat
1128 AC_ARG_WITH(libexpat, AC_HELP_STRING([--with-libexpat=path],
1129     [specify explicit path for libexpat.]),
1130     [ ],[ withval="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr" ])
1131 AC_MSG_CHECKING(for libexpat)
1132 found_libexpat="no"
1133 for dir in $withval ; do
1134             if test -f "$dir/include/expat.h"; then
1135                 found_libexpat="yes"
1136                 dnl assume /usr is in default path.
1137                 if test "$dir" != "/usr"; then
1138                     CPPFLAGS="$CPPFLAGS -I$dir/include"
1139                     LDFLAGS="$LDFLAGS -L$dir/lib"
1140                 fi
1141                 AC_MSG_RESULT(found in $dir)
1142                 break;
1143             fi
1144 done
1145 if test x_$found_libexpat != x_yes; then
1146         AC_ERROR([Could not find libexpat, expat.h])
1147 fi
1148 AC_CHECK_HEADERS([expat.h],,, [AC_INCLUDES_DEFAULT])
1149 AC_CHECK_DECLS([XML_StopParser], [], [], [AC_INCLUDES_DEFAULT
1150 #include <expat.h>
1151 ])
1152
1153 # set static linking if requested
1154 AC_SUBST(staticexe)
1155 staticexe=""
1156 AC_ARG_ENABLE(static-exe, AC_HELP_STRING([--enable-static-exe],
1157         [ enable to compile executables statically against (event) libs, for debug purposes ]),
1158         , )
1159 if test x_$enable_static_exe = x_yes; then
1160         staticexe="-static"
1161         if test "$on_mingw" = yes; then
1162                 staticexe="-all-static"
1163                 # for static compile, include gdi32 and zlib here.
1164                 if echo $LIBS | grep 'lgdi32' >/dev/null; then
1165                         :
1166                 else
1167                         LIBS="$LIBS -lgdi32"
1168                 fi
1169                 LIBS="$LIBS -lz"
1170         fi
1171 fi
1172
1173 # Include systemd.m4 - begin
1174 sinclude(systemd.m4)
1175 # Include systemd.m4 - end
1176
1177 # set lock checking if requested
1178 AC_ARG_ENABLE(lock_checks, AC_HELP_STRING([--enable-lock-checks],
1179         [ enable to check lock and unlock calls, for debug purposes ]),
1180         , )
1181 if test x_$enable_lock_checks = x_yes; then
1182         AC_DEFINE(ENABLE_LOCK_CHECKS, 1, [Define if you want to use debug lock checking (slow).])
1183         CHECKLOCK_OBJ="checklocks.lo"
1184         AC_SUBST(CHECKLOCK_OBJ)
1185 fi
1186
1187 ACX_CHECK_GETADDRINFO_WITH_INCLUDES
1188 if test "$USE_WINSOCK" = 1; then
1189         AC_DEFINE(UB_ON_WINDOWS, 1, [Use win32 resources and API])
1190         AC_CHECK_HEADERS([iphlpapi.h],,, [AC_INCLUDES_DEFAULT
1191 #include <windows.h>
1192         ])
1193         AC_CHECK_TOOL(WINDRES, windres)
1194         LIBS="$LIBS -liphlpapi"
1195         WINAPPS="unbound-service-install.exe unbound-service-remove.exe anchor-update.exe"
1196         AC_SUBST(WINAPPS)
1197         WIN_DAEMON_SRC="winrc/win_svc.c winrc/w_inst.c"
1198         AC_SUBST(WIN_DAEMON_SRC)
1199         WIN_DAEMON_OBJ="win_svc.lo w_inst.lo"
1200         AC_SUBST(WIN_DAEMON_OBJ)
1201         WIN_DAEMON_OBJ_LINK="rsrc_unbound.o"
1202         AC_SUBST(WIN_DAEMON_OBJ_LINK)
1203         WIN_HOST_OBJ_LINK="rsrc_unbound_host.o"
1204         AC_SUBST(WIN_HOST_OBJ_LINK)
1205         WIN_UBANCHOR_OBJ_LINK="rsrc_unbound_anchor.o log.lo locks.lo"
1206         AC_SUBST(WIN_UBANCHOR_OBJ_LINK)
1207         WIN_CONTROL_OBJ_LINK="rsrc_unbound_control.o"
1208         AC_SUBST(WIN_CONTROL_OBJ_LINK)
1209         WIN_CHECKCONF_OBJ_LINK="rsrc_unbound_checkconf.o"
1210         AC_SUBST(WIN_CHECKCONF_OBJ_LINK)
1211 fi
1212 if test $ac_cv_func_getaddrinfo = no; then
1213         AC_LIBOBJ([fake-rfc2553])
1214 fi
1215 # check after getaddrinfo for its libraries
1216 ACX_FUNC_IOCTLSOCKET
1217
1218 # see if daemon(3) exists, and if it is deprecated.
1219 AC_CHECK_FUNCS([daemon])
1220 if test $ac_cv_func_daemon = yes; then
1221         ACX_FUNC_DEPRECATED([daemon], [(void)daemon(0, 0);], [
1222 #include <stdlib.h>
1223 ])
1224 fi
1225
1226 AC_CHECK_MEMBERS([struct sockaddr_un.sun_len],,,[
1227 AC_INCLUDES_DEFAULT
1228 #ifdef HAVE_SYS_UN_H
1229 #include <sys/un.h>
1230 #endif
1231 ])
1232 AC_CHECK_MEMBERS([struct in_pktinfo.ipi_spec_dst],,,[
1233 AC_INCLUDES_DEFAULT
1234 #if HAVE_SYS_PARAM_H
1235 #include <sys/param.h>
1236 #endif
1237
1238 #ifdef HAVE_SYS_SOCKET_H
1239 #include <sys/socket.h>
1240 #endif
1241
1242 #ifdef HAVE_SYS_UIO_H
1243 #include <sys/uio.h>
1244 #endif
1245
1246 #ifdef HAVE_NETINET_IN_H
1247 #include <netinet/in.h>
1248 #endif
1249
1250 #ifdef HAVE_NETINET_TCP_H
1251 #include <netinet/tcp.h>
1252 #endif
1253
1254 #ifdef HAVE_ARPA_INET_H
1255 #include <arpa/inet.h>
1256 #endif
1257
1258 #ifdef HAVE_WINSOCK2_H
1259 #include <winsock2.h>
1260 #endif
1261
1262 #ifdef HAVE_WS2TCPIP_H
1263 #include <ws2tcpip.h>
1264 #endif
1265 ])
1266 AC_SEARCH_LIBS([setusercontext], [util])
1267 AC_CHECK_FUNCS([tzset sigprocmask fcntl getpwnam endpwent getrlimit setrlimit setsid chroot kill chown sleep usleep random srandom recvmsg sendmsg writev socketpair glob initgroups strftime localtime_r setusercontext _beginthreadex endservent endprotoent fsync shmget])
1268 AC_CHECK_FUNCS([setresuid],,[AC_CHECK_FUNCS([setreuid])])
1269 AC_CHECK_FUNCS([setresgid],,[AC_CHECK_FUNCS([setregid])])
1270
1271 # check if setreuid en setregid fail, on MacOSX10.4(darwin8).
1272 if echo $build_os | grep darwin8 > /dev/null; then
1273         AC_DEFINE(DARWIN_BROKEN_SETREUID, 1, [Define this if on macOSX10.4-darwin8 and setreuid and setregid do not work])
1274 fi
1275 AC_CHECK_DECLS([inet_pton,inet_ntop], [], [], [
1276 AC_INCLUDES_DEFAULT
1277 #ifdef HAVE_NETINET_IN_H
1278 #include <netinet/in.h>
1279 #endif
1280
1281 #ifdef HAVE_NETINET_TCP_H
1282 #include <netinet/tcp.h>
1283 #endif
1284
1285 #ifdef HAVE_ARPA_INET_H
1286 #include <arpa/inet.h>
1287 #endif
1288
1289 #ifdef HAVE_WINSOCK2_H
1290 #include <winsock2.h>
1291 #endif
1292
1293 #ifdef HAVE_WS2TCPIP_H
1294 #include <ws2tcpip.h>
1295 #endif
1296 ])
1297 AC_REPLACE_FUNCS(inet_aton)
1298 AC_REPLACE_FUNCS(inet_pton)
1299 AC_REPLACE_FUNCS(inet_ntop)
1300 AC_REPLACE_FUNCS(snprintf)
1301 # test if snprintf return the proper length
1302 if test "x$ac_cv_func_snprintf" = xyes; then
1303     if test c${cross_compiling} = cno; then
1304         AC_MSG_CHECKING([for correct snprintf return value])
1305         AC_RUN_IFELSE([AC_LANG_SOURCE(AC_INCLUDES_DEFAULT
1306 [[
1307 int main(void) { return !(snprintf(NULL, 0, "test") == 4); }
1308 ]])], [AC_MSG_RESULT(yes)], [
1309                 AC_MSG_RESULT(no)
1310                 AC_DEFINE([SNPRINTF_RET_BROKEN], [], [define if (v)snprintf does not return length needed, (but length used)])
1311                 AC_LIBOBJ(snprintf)
1312           ])
1313     fi
1314 fi
1315 AC_REPLACE_FUNCS(strlcat)
1316 AC_REPLACE_FUNCS(strlcpy)
1317 AC_REPLACE_FUNCS(memmove)
1318 AC_REPLACE_FUNCS(gmtime_r)
1319 AC_REPLACE_FUNCS(isblank)
1320 dnl without CTIME, ARC4-functions and without reallocarray.
1321 LIBOBJ_WITHOUT_CTIMEARC4="$LIBOBJS"
1322 AC_SUBST(LIBOBJ_WITHOUT_CTIMEARC4)
1323 AC_REPLACE_FUNCS(reallocarray)
1324 if test "$USE_NSS" = "no"; then
1325         AC_REPLACE_FUNCS(arc4random)
1326         AC_REPLACE_FUNCS(arc4random_uniform)
1327         if test "$ac_cv_func_arc4random" = "no"; then
1328                 AC_LIBOBJ(explicit_bzero)
1329                 AC_LIBOBJ(arc4_lock)
1330                 AC_CHECK_FUNCS([getentropy],,[
1331                     if test "$USE_WINSOCK" = 1; then
1332                         AC_LIBOBJ(getentropy_win)
1333                     else
1334                         case "$host" in
1335                         Darwin|*darwin*)
1336                                 AC_LIBOBJ(getentropy_osx)
1337                         ;;
1338                         *solaris*|*sunos*|SunOS)
1339                                 AC_LIBOBJ(getentropy_solaris)
1340                                 AC_CHECK_HEADERS([sys/sha2.h],, [
1341                                         AC_CHECK_FUNCS([SHA512_Update],,[
1342                                                 AC_LIBOBJ(sha512)
1343                                         ])
1344                                 ], [AC_INCLUDES_DEFAULT])
1345                                 if test "$ac_cv_header_sys_sha2_h" = "yes"; then
1346                                         # this lib needed for sha2 on solaris
1347                                         LIBS="$LIBS -lmd"
1348                                 fi
1349                                 AC_SEARCH_LIBS([clock_gettime], [rt])
1350                         ;;
1351                         *linux*|Linux|*)
1352                                 AC_LIBOBJ(getentropy_linux)
1353                                 AC_CHECK_FUNCS([SHA512_Update],,[
1354                                         AC_DEFINE([COMPAT_SHA512], [1], [Do sha512 definitions in config.h])
1355                                         AC_LIBOBJ(sha512)
1356                                 ])
1357                                 AC_CHECK_HEADERS([sys/sysctl.h],,, [AC_INCLUDES_DEFAULT])
1358                                 AC_CHECK_FUNCS([getauxval])
1359                                 AC_SEARCH_LIBS([clock_gettime], [rt])
1360                         ;;
1361                         esac
1362                     fi
1363                 ])
1364         fi
1365 fi
1366 LIBOBJ_WITHOUT_CTIME="$LIBOBJS"
1367 AC_SUBST(LIBOBJ_WITHOUT_CTIME)
1368 AC_REPLACE_FUNCS(ctime_r)
1369 AC_REPLACE_FUNCS(strsep)
1370
1371 AC_ARG_ENABLE(allsymbols, AC_HELP_STRING([--enable-allsymbols], [export all symbols from libunbound and link binaries to it, smaller install size but libunbound export table is polluted by internal symbols]))
1372 case "$enable_allsymbols" in
1373         yes)
1374         COMMON_OBJ_ALL_SYMBOLS=""
1375         UBSYMS=""
1376         EXTRALINK="-L. -L.libs -lunbound"
1377         AC_DEFINE(EXPORT_ALL_SYMBOLS, 1, [Define this if you enabled-allsymbols from libunbound to link binaries to it for smaller install size, but the libunbound export table is polluted by internal symbols])
1378         ;;
1379         no|*)
1380         COMMON_OBJ_ALL_SYMBOLS='$(COMMON_OBJ)'
1381         UBSYMS='-export-symbols $(srcdir)/libunbound/ubsyms.def'
1382         EXTRALINK=""
1383         ;;
1384 esac
1385 AC_SUBST(COMMON_OBJ_ALL_SYMBOLS)
1386 AC_SUBST(EXTRALINK)
1387 AC_SUBST(UBSYMS)
1388 if test x_$enable_lock_checks = x_yes; then
1389         UBSYMS="-export-symbols clubsyms.def"
1390         cp ${srcdir}/libunbound/ubsyms.def clubsyms.def
1391         echo lock_protect >> clubsyms.def
1392         echo lock_unprotect >> clubsyms.def
1393         echo lock_get_mem >> clubsyms.def
1394         echo checklock_start >> clubsyms.def
1395         echo checklock_stop >> clubsyms.def
1396         echo checklock_lock >> clubsyms.def
1397         echo checklock_unlock >> clubsyms.def
1398         echo checklock_init >> clubsyms.def
1399         echo checklock_thrcreate >> clubsyms.def
1400         echo checklock_thrjoin >> clubsyms.def
1401 fi
1402
1403 # check for dnstap if requested
1404 dt_DNSTAP([$UNBOUND_RUN_DIR/dnstap.sock],
1405     [
1406         AC_DEFINE([USE_DNSTAP], [1], [Define to 1 to enable dnstap support])
1407         AC_SUBST([ENABLE_DNSTAP], [1])
1408
1409         AC_SUBST([opt_dnstap_socket_path])
1410         ACX_ESCAPE_BACKSLASH($opt_dnstap_socket_path, hdr_dnstap_socket_path)
1411         AC_DEFINE_UNQUOTED(DNSTAP_SOCKET_PATH,
1412             ["$hdr_dnstap_socket_path"], [default dnstap socket path])
1413
1414         AC_SUBST([DNSTAP_SRC], ["dnstap/dnstap.c dnstap/dnstap.pb-c.c"])
1415         AC_SUBST([DNSTAP_OBJ], ["dnstap.lo dnstap.pb-c.lo"])
1416     ],
1417     [
1418         AC_SUBST([ENABLE_DNSTAP], [0])
1419     ]
1420 )
1421
1422 # check for dnscrypt if requested
1423 dnsc_DNSCRYPT([
1424         AC_DEFINE([USE_DNSCRYPT], [1], [Define to 1 to enable dnscrypt support])
1425         AC_SUBST([ENABLE_DNSCRYPT], [1])
1426
1427         AC_SUBST([DNSCRYPT_SRC], ["dnscrypt/dnscrypt.c"])
1428         AC_SUBST([DNSCRYPT_OBJ], ["dnscrypt.lo"])
1429     ],
1430     [
1431         AC_SUBST([ENABLE_DNSCRYPT], [0])
1432     ]
1433 )
1434
1435 # check for cachedb if requested
1436 AC_ARG_ENABLE(cachedb, AC_HELP_STRING([--enable-cachedb], [enable cachedb module that can use external cache storage]))
1437 case "$enable_cachedb" in
1438     yes)
1439         AC_DEFINE([USE_CACHEDB], [1], [Define to 1 to use cachedb support])
1440         ;;
1441     no|*)
1442         # nothing
1443         ;;
1444 esac
1445
1446 # check for ipsecmod if requested
1447 AC_ARG_ENABLE(ipsecmod, AC_HELP_STRING([--enable-ipsecmod], [Enable ipsecmod module that facilitates opportunistic IPsec]))
1448 case "$enable_ipsecmod" in
1449         yes)
1450                 AC_DEFINE([USE_IPSECMOD], [1], [Define to 1 to use ipsecmod support.])
1451                 IPSECMOD_OBJ="ipsecmod.lo ipsecmod-whitelist.lo"
1452                 AC_SUBST(IPSECMOD_OBJ)
1453                 IPSECMOD_HEADER='$(srcdir)/ipsecmod/ipsecmod.h $(srcdir)/ipsecmod/ipsecmod-whitelist.h'
1454                 AC_SUBST(IPSECMOD_HEADER)
1455                 ;;
1456         no|*)
1457                 # nothing
1458                 ;;
1459 esac
1460
1461 AC_MSG_CHECKING([if ${MAKE:-make} supports $< with implicit rule in scope])
1462 # on openBSD, the implicit rule make $< work.
1463 # on Solaris, it does not work ($? is changed sources, $^ lists dependencies).
1464 # gmake works.
1465 cat >conftest.make <<EOF
1466 all:    conftest.lo
1467
1468 conftest.lo foo.lo bla.lo:
1469         if test -f "\$<"; then touch \$@; fi
1470
1471 .SUFFIXES: .lo
1472 .c.lo:
1473         if test -f "\$<"; then touch \$@; fi
1474
1475 conftest.lo:        conftest.dir/conftest.c
1476 EOF
1477 mkdir conftest.dir
1478 touch conftest.dir/conftest.c
1479 rm -f conftest.lo conftest.c
1480 ${MAKE:-make} -f conftest.make >/dev/null
1481 rm -f conftest.make conftest.c conftest.dir/conftest.c
1482 rm -rf conftest.dir
1483 if test ! -f conftest.lo; then
1484         AC_MSG_RESULT(no)
1485         SOURCEDETERMINE='echo "$^" | awk "-F " "{print \$$1;}" > .source'
1486         SOURCEFILE='`cat .source`'
1487 else
1488         AC_MSG_RESULT(yes)
1489         SOURCEDETERMINE=':'
1490         SOURCEFILE='$<'
1491 fi
1492 rm -f conftest.lo
1493 AC_SUBST(SOURCEDETERMINE)
1494 AC_SUBST(SOURCEFILE)
1495
1496 # see if we want to build the library or everything
1497 ALLTARGET="alltargets"
1498 INSTALLTARGET="install-all"
1499 AC_ARG_WITH(libunbound-only, AC_HELP_STRING([--with-libunbound-only],
1500         [do not build daemon and tool programs]),
1501         [
1502         if test "$withval" = "yes"; then
1503                 ALLTARGET="lib"
1504                 INSTALLTARGET="install-lib"
1505         fi
1506 ])
1507 if test $ALLTARGET = "alltargets"; then
1508         if test $USE_NSS = "yes"; then
1509                 AC_ERROR([--with-nss can only be used in combination with --with-libunbound-only.])
1510         fi
1511         if test $USE_NETTLE = "yes"; then
1512                 AC_ERROR([--with-nettle can only be used in combination with --with-libunbound-only.])
1513         fi
1514 fi
1515
1516 AC_SUBST(ALLTARGET)
1517 AC_SUBST(INSTALLTARGET)
1518
1519 ACX_STRIP_EXT_FLAGS
1520 if test -n "$LATE_LDFLAGS"; then
1521   LDFLAGS="$LATE_LDFLAGS $LDFLAGS"
1522 fi
1523 # remove start spaces
1524 LDFLAGS=`echo "$LDFLAGS"|sed -e 's/^ *//'`
1525 LIBS=`echo "$LIBS"|sed -e 's/^ *//'`
1526
1527 AC_DEFINE_UNQUOTED([MAXSYSLOGMSGLEN], [10240], [Define to the maximum message length to pass to syslog.])
1528
1529 AH_BOTTOM(
1530 dnl this must be first AH_CONFIG, to define the flags before any includes.
1531 AHX_CONFIG_EXT_FLAGS
1532
1533 dnl includes
1534 [
1535 #ifndef UNBOUND_DEBUG
1536 #  define NDEBUG
1537 #endif
1538
1539 /** Use small-ldns codebase */
1540 #define USE_SLDNS 1
1541 #ifdef HAVE_SSL
1542 #  define LDNS_BUILD_CONFIG_HAVE_SSL 1
1543 #endif
1544
1545 #include <stdio.h>
1546 #include <string.h>
1547 #include <unistd.h>
1548 #include <assert.h>
1549
1550 #if STDC_HEADERS
1551 #include <stdlib.h>
1552 #include <stddef.h>
1553 #endif
1554
1555 #ifdef HAVE_STDARG_H
1556 #include <stdarg.h>
1557 #endif
1558
1559 #ifdef HAVE_STDINT_H
1560 #include <stdint.h>
1561 #endif
1562
1563 #include <errno.h>
1564
1565 #if HAVE_SYS_PARAM_H
1566 #include <sys/param.h>
1567 #endif
1568
1569 #ifdef HAVE_SYS_SOCKET_H
1570 #include <sys/socket.h>
1571 #endif
1572
1573 #ifdef HAVE_SYS_UIO_H
1574 #include <sys/uio.h>
1575 #endif
1576
1577 #ifdef HAVE_NETINET_IN_H
1578 #include <netinet/in.h>
1579 #endif
1580
1581 #ifdef HAVE_NETINET_TCP_H
1582 #include <netinet/tcp.h>
1583 #endif
1584
1585 #ifdef HAVE_ARPA_INET_H
1586 #include <arpa/inet.h>
1587 #endif
1588
1589 #ifdef HAVE_WINSOCK2_H
1590 #include <winsock2.h>
1591 #endif
1592
1593 #ifdef HAVE_WS2TCPIP_H
1594 #include <ws2tcpip.h>
1595 #endif
1596
1597 #ifndef USE_WINSOCK
1598 #define ARG_LL "%ll"
1599 #else
1600 #define ARG_LL "%I64"
1601 #endif
1602
1603 #ifndef AF_LOCAL
1604 #define AF_LOCAL AF_UNIX
1605 #endif
1606 ]
1607
1608 AHX_CONFIG_FORMAT_ATTRIBUTE
1609 AHX_CONFIG_UNUSED_ATTRIBUTE
1610 AHX_CONFIG_FSEEKO
1611 AHX_CONFIG_MAXHOSTNAMELEN
1612 #if !defined(HAVE_SNPRINTF) || defined(SNPRINTF_RET_BROKEN)
1613 #define snprintf snprintf_unbound
1614 #define vsnprintf vsnprintf_unbound
1615 #include <stdarg.h>
1616 int snprintf (char *str, size_t count, const char *fmt, ...);
1617 int vsnprintf (char *str, size_t count, const char *fmt, va_list arg);
1618 #endif /* HAVE_SNPRINTF or SNPRINTF_RET_BROKEN */
1619 AHX_CONFIG_INET_PTON(unbound)
1620 AHX_CONFIG_INET_NTOP(unbound)
1621 AHX_CONFIG_INET_ATON(unbound)
1622 AHX_CONFIG_MEMMOVE(unbound)
1623 AHX_CONFIG_STRLCAT(unbound)
1624 AHX_CONFIG_STRLCPY(unbound)
1625 AHX_CONFIG_GMTIME_R(unbound)
1626 AHX_CONFIG_REALLOCARRAY(unbound)
1627 AHX_CONFIG_W32_SLEEP
1628 AHX_CONFIG_W32_USLEEP
1629 AHX_CONFIG_W32_RANDOM
1630 AHX_CONFIG_W32_SRANDOM
1631 AHX_CONFIG_W32_FD_SET_T
1632 AHX_CONFIG_IPV6_MIN_MTU
1633 AHX_MEMCMP_BROKEN(unbound)
1634
1635 [
1636 #ifndef HAVE_CTIME_R
1637 #define ctime_r unbound_ctime_r
1638 char *ctime_r(const time_t *timep, char *buf);
1639 #endif
1640
1641 #ifndef HAVE_STRSEP
1642 #define strsep unbound_strsep
1643 char *strsep(char **stringp, const char *delim);
1644 #endif
1645
1646 #ifndef HAVE_ISBLANK
1647 #define isblank unbound_isblank
1648 int isblank(int c);
1649 #endif
1650
1651 #if defined(HAVE_INET_NTOP) && !HAVE_DECL_INET_NTOP
1652 const char *inet_ntop(int af, const void *src, char *dst, size_t size);
1653 #endif
1654
1655 #if defined(HAVE_INET_PTON) && !HAVE_DECL_INET_PTON
1656 int inet_pton(int af, const char* src, void* dst);
1657 #endif
1658
1659 #if !defined(HAVE_STRPTIME) || !defined(STRPTIME_WORKS)
1660 #define strptime unbound_strptime
1661 struct tm;
1662 char *strptime(const char *s, const char *format, struct tm *tm);
1663 #endif
1664
1665 #ifdef HAVE_LIBRESSL
1666 #  if !HAVE_DECL_STRLCPY
1667 size_t strlcpy(char *dst, const char *src, size_t siz);
1668 #  endif
1669 #  if !HAVE_DECL_STRLCAT
1670 size_t strlcat(char *dst, const char *src, size_t siz);
1671 #  endif
1672 #  if !HAVE_DECL_ARC4RANDOM && defined(HAVE_ARC4RANDOM)
1673 uint32_t arc4random(void);
1674 #  endif
1675 #  if !HAVE_DECL_ARC4RANDOM_UNIFORM && defined(HAVE_ARC4RANDOM_UNIFORM)
1676 uint32_t arc4random_uniform(uint32_t upper_bound);
1677 #  endif
1678 #  if !HAVE_DECL_REALLOCARRAY
1679 void *reallocarray(void *ptr, size_t nmemb, size_t size);
1680 #  endif
1681 #endif /* HAVE_LIBRESSL */
1682 #ifndef HAVE_ARC4RANDOM
1683 void explicit_bzero(void* buf, size_t len);
1684 int getentropy(void* buf, size_t len);
1685 uint32_t arc4random(void);
1686 void arc4random_buf(void* buf, size_t n);
1687 void _ARC4_LOCK(void);
1688 void _ARC4_UNLOCK(void);
1689 void _ARC4_LOCK_DESTROY(void);
1690 #endif
1691 #ifndef HAVE_ARC4RANDOM_UNIFORM
1692 uint32_t arc4random_uniform(uint32_t upper_bound);
1693 #endif
1694 #ifdef COMPAT_SHA512
1695 #ifndef SHA512_DIGEST_LENGTH
1696 #define SHA512_BLOCK_LENGTH             128
1697 #define SHA512_DIGEST_LENGTH            64
1698 #define SHA512_DIGEST_STRING_LENGTH     (SHA512_DIGEST_LENGTH * 2 + 1)
1699 typedef struct _SHA512_CTX {
1700         uint64_t        state[8];
1701         uint64_t        bitcount[2];
1702         uint8_t buffer[SHA512_BLOCK_LENGTH];
1703 } SHA512_CTX;
1704 #endif /* SHA512_DIGEST_LENGTH */
1705 void SHA512_Init(SHA512_CTX*);
1706 void SHA512_Update(SHA512_CTX*, void*, size_t);
1707 void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
1708 unsigned char *SHA512(void* data, unsigned int data_len, unsigned char *digest);
1709 #endif /* COMPAT_SHA512 */
1710
1711
1712
1713 #if defined(HAVE_EVENT_H) && !defined(HAVE_EVENT_BASE_ONCE) && !(defined(HAVE_EV_LOOP) || defined(HAVE_EV_DEFAULT_LOOP)) && (defined(HAVE_PTHREAD) || defined(HAVE_SOLARIS_THREADS))
1714    /* using version of libevent that is not threadsafe. */
1715 #  define LIBEVENT_SIGNAL_PROBLEM 1
1716 #endif
1717
1718 #ifndef CHECKED_INET6
1719 #  define CHECKED_INET6
1720 #  ifdef AF_INET6
1721 #    define INET6
1722 #  else
1723 #    define AF_INET6        28
1724 #  endif
1725 #endif /* CHECKED_INET6 */
1726
1727 #ifndef HAVE_GETADDRINFO
1728 struct sockaddr_storage;
1729 #include "compat/fake-rfc2553.h"
1730 #endif
1731
1732 #ifdef UNBOUND_ALLOC_STATS
1733 #  define malloc(s) unbound_stat_malloc_log(s, __FILE__, __LINE__, __func__)
1734 #  define calloc(n,s) unbound_stat_calloc_log(n, s, __FILE__, __LINE__, __func__)
1735 #  define free(p) unbound_stat_free_log(p, __FILE__, __LINE__, __func__)
1736 #  define realloc(p,s) unbound_stat_realloc_log(p, s, __FILE__, __LINE__, __func__)
1737 void *unbound_stat_malloc(size_t size);
1738 void *unbound_stat_calloc(size_t nmemb, size_t size);
1739 void unbound_stat_free(void *ptr);
1740 void *unbound_stat_realloc(void *ptr, size_t size);
1741 void *unbound_stat_malloc_log(size_t size, const char* file, int line,
1742         const char* func);
1743 void *unbound_stat_calloc_log(size_t nmemb, size_t size, const char* file,
1744         int line, const char* func);
1745 void unbound_stat_free_log(void *ptr, const char* file, int line,
1746         const char* func);
1747 void *unbound_stat_realloc_log(void *ptr, size_t size, const char* file,
1748         int line, const char* func);
1749 #elif defined(UNBOUND_ALLOC_LITE)
1750 #  include "util/alloc.h"
1751 #endif /* UNBOUND_ALLOC_LITE and UNBOUND_ALLOC_STATS */
1752
1753 /** default port for DNS traffic. */
1754 #define UNBOUND_DNS_PORT 53
1755 /** default port for unbound control traffic, registered port with IANA,
1756     ub-dns-control  8953/tcp    unbound dns nameserver control */
1757 #define UNBOUND_CONTROL_PORT 8953
1758 /** the version of unbound-control that this software implements */
1759 #define UNBOUND_CONTROL_VERSION 1
1760
1761 ])
1762
1763 dnl if we build from source tree, the man pages need @date@ and @version@
1764 dnl if this is a distro tarball, that was already done by makedist.sh
1765 AC_SUBST(version, [VERSION_MAJOR.VERSION_MINOR.VERSION_MICRO])
1766 AC_SUBST(date, [`date +'%b %e, %Y'`])
1767
1768 AC_CONFIG_FILES([Makefile doc/example.conf doc/libunbound.3 doc/unbound.8 doc/unbound-anchor.8 doc/unbound-checkconf.8 doc/unbound.conf.5 doc/unbound-control.8 doc/unbound-host.1 smallapp/unbound-control-setup.sh dnstap/dnstap_config.h dnscrypt/dnscrypt_config.h contrib/libunbound.pc contrib/unbound.socket contrib/unbound.service])
1769 AC_CONFIG_HEADER([config.h])
1770 AC_OUTPUT