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
  10 # must be numbers. ac_defun because of later processing
  11 m4_define([VERSION_MAJOR],[1])
  12 m4_define([VERSION_MINOR],[5])
  13 m4_define([VERSION_MICRO],[5])
  14 AC_INIT(unbound, m4_defn([VERSION_MAJOR]).m4_defn([VERSION_MINOR]).m4_defn([VERSION_MICRO]), unbound-bugs@nlnetlabs.nl, unbound)
  15 AC_SUBST(UNBOUND_VERSION_MAJOR, [VERSION_MAJOR])
  16 AC_SUBST(UNBOUND_VERSION_MINOR, [VERSION_MINOR])
  17 AC_SUBST(UNBOUND_VERSION_MICRO, [VERSION_MICRO])
  18
  19 LIBUNBOUND_CURRENT=5
  20 LIBUNBOUND_REVISION=8
  21 LIBUNBOUND_AGE=3
  22 # 1.0.0 had 0:12:0
  23 # 1.0.1 had 0:13:0
  24 # 1.0.2 had 0:14:0
  25 # 1.1.0 had 0:15:0
  26 # 1.1.1 had 0:16:0
  27 # 1.2.0 had 0:17:0
  28 # 1.2.1 had 0:18:0
  29 # 1.3.0 had 1:0:0   # ub_cancel and -export-symbols.
  30 # 1.3.1 had 1:1:0
  31 # 1.3.2 had 1:2:0
  32 # 1.3.3 had 1:3:0
  33 # 1.3.4 had 1:4:0
  34 # 1.4.0-snapshots had 1:5:0
  35 # 1.4.0 had 1:5:0 (not 2:0:0)   # ub_result.why_bogus
  36 # 1.4.1 had 2:1:0
  37 # 1.4.2 had 2:2:0
  38 # 1.4.3 had 2:3:0
  39 # 1.4.4 had 2:4:0
  40 # 1.4.5 had 2:5:0
  41 # 1.4.6 had 2:6:0
  42 # 1.4.7 had 2:7:0
  43 # 1.4.8 had 2:8:0
  44 # 1.4.9 had 2:9:0
  45 # 1.4.10 had 2:10:0
  46 # 1.4.11 had 2:11:0
  47 # 1.4.12 had 2:12:0
  48 # 1.4.13 had 2:13:0
  49 # and 1.4.13p1 and 1.4.13.p2
  50 # 1.4.14 had 2:14:0
  51 # 1.4.15 had 3:0:1 # adds ub_version()
  52 # 1.4.16 had 3:1:1
  53 # 1.4.17 had 3:2:1
  54 # 1.4.18 had 3:3:1
  55 # 1.4.19 had 3:4:1
  56 # 1.4.20 had 4:0:2 # adds libunbound.ttl # but shipped 3:5:1
  57 # 1.4.21 had 4:1:2
  58 # 1.4.22 had 4:1:2
  59 # 1.5.0 had 5:3:3 # adds ub_ctx_add_ta_autr
  60 # 1.5.1 had 5:3:3
  61 # 1.5.2 had 5:5:3
  62 # 1.5.3 had 5:6:3
  63 # 1.5.4 had 5:7:3
  64 # 1.5.5 had 5:8:3
  65
  66 #   Current  -- the number of the binary API that we're implementing
  67 #   Revision -- which iteration of the implementation of the binary
  68 #               API are we supplying?
  69 #   Age      -- How many previous binary API versions do we also
  70 #               support?
  71 #
  72 # If we release a new version that does not change the binary API,
  73 # increment Revision.
  74 #
  75 # If we release a new version that changes the binary API, but does
  76 # not break programs compiled against the old binary API, increment
  77 # Current and Age.  Set Revision to 0, since this is the first
  78 # implementation of the new API.
  79 #
  80 # Otherwise, we're changing the binary API and breaking bakward
  81 # compatibility with old binaries.  Increment Current.  Set Age to 0,
  82 # since we're backward compatible with no previous APIs.  Set Revision
  83 # to 0 too.
  84 AC_SUBST(LIBUNBOUND_CURRENT)
  85 AC_SUBST(LIBUNBOUND_REVISION)
  86 AC_SUBST(LIBUNBOUND_AGE)
  87
  88 CFLAGS="$CFLAGS"
  89 AC_AIX
  90 if test "$ac_cv_header_minix_config_h" = "yes"; then
  91         AC_DEFINE(_NETBSD_SOURCE,1, [Enable for compile on Minix])
  92 fi
  93
  94 dnl
  95 dnl By default set prefix to /usr/local
  96 dnl
  97 case "$prefix" in
  98         NONE)
  99                 prefix="/usr/local"
 100         ;;
 101 esac
 102
 103 # are we on MinGW?
 104 if uname -s 2>&1 | grep MINGW32 >/dev/null; then on_mingw="yes"
 105 else
 106         if echo $target | grep mingw32 >/dev/null; then on_mingw="yes"
 107         else on_mingw="no"; fi
 108 fi
 109
 110 #
 111 # Determine configuration file
 112 # the eval is to evaluate shell expansion twice
 113 if test $on_mingw = "no"; then
 114   ub_conf_file=`eval echo "${sysconfdir}/unbound/unbound.conf"`
 115 else
 116   ub_conf_file="C:\\Program Files\\Unbound\\service.conf"
 117 fi
 118 AC_ARG_WITH([conf_file],
 119         AC_HELP_STRING([--with-conf-file=path],
 120         [Pathname to the Unbound configuration file]),
 121         [ub_conf_file="$withval"])
 122 AC_SUBST(ub_conf_file)
 123 ACX_ESCAPE_BACKSLASH($ub_conf_file, hdr_config)
 124 AC_DEFINE_UNQUOTED(CONFIGFILE, ["$hdr_config"], [Pathname to the Unbound configuration file])
 125 ub_conf_dir=`AS_DIRNAME(["$ub_conf_file"])`
 126 AC_SUBST(ub_conf_dir)
 127
 128 # Determine run, chroot directory and pidfile locations
 129 AC_ARG_WITH(run-dir,
 130     AC_HELP_STRING([--with-run-dir=path],
 131     [set default directory to chdir to (by default dir part of cfg file)]),
 132     UNBOUND_RUN_DIR="$withval",
 133 if test $on_mingw = no; then
 134     UNBOUND_RUN_DIR=`dirname "$ub_conf_file"`
 135 else
 136     UNBOUND_RUN_DIR=""
 137 fi
 138 )
 139 AC_SUBST(UNBOUND_RUN_DIR)
 140 ACX_ESCAPE_BACKSLASH($UNBOUND_RUN_DIR, hdr_run)
 141 AC_DEFINE_UNQUOTED(RUN_DIR, ["$hdr_run"], [Directory to chdir to])
 142
 143 AC_ARG_WITH(chroot-dir,
 144     AC_HELP_STRING([--with-chroot-dir=path],
 145     [set default directory to chroot to (by default same as run-dir)]),
 146     UNBOUND_CHROOT_DIR="$withval",
 147 if test $on_mingw = no; then
 148     UNBOUND_CHROOT_DIR="$UNBOUND_RUN_DIR"
 149 else
 150     UNBOUND_CHROOT_DIR=""
 151 fi
 152 )
 153 AC_SUBST(UNBOUND_CHROOT_DIR)
 154 ACX_ESCAPE_BACKSLASH($UNBOUND_CHROOT_DIR, hdr_chroot)
 155 AC_DEFINE_UNQUOTED(CHROOT_DIR, ["$hdr_chroot"], [Directory to chroot to])
 156
 157 AC_ARG_WITH(share-dir,
 158     AC_HELP_STRING([--with-share-dir=path],
 159     [set default directory with shared data (by default same as share/unbound)]),
 160     UNBOUND_SHARE_DIR="$withval",
 161     UNBOUND_SHARE_DIR="$UNBOUND_RUN_DIR")
 162 AC_SUBST(UNBOUND_SHARE_DIR)
 163 AC_DEFINE_UNQUOTED(SHARE_DIR, ["$UNBOUND_SHARE_DIR"], [Shared data])
 164
 165 AC_ARG_WITH(pidfile,
 166     AC_HELP_STRING([--with-pidfile=filename],
 167     [set default pathname to unbound pidfile (default run-dir/unbound.pid)]),
 168     UNBOUND_PIDFILE="$withval",
 169 if test $on_mingw = no; then
 170     UNBOUND_PIDFILE="$UNBOUND_RUN_DIR/unbound.pid"
 171 else
 172     UNBOUND_PIDFILE=""
 173 fi
 174 )
 175 AC_SUBST(UNBOUND_PIDFILE)
 176 ACX_ESCAPE_BACKSLASH($UNBOUND_PIDFILE, hdr_pid)
 177 AC_DEFINE_UNQUOTED(PIDFILE, ["$hdr_pid"], [default pidfile location])
 178
 179 AC_ARG_WITH(rootkey-file,
 180     AC_HELP_STRING([--with-rootkey-file=filename],
 181     [set default pathname to root key file (default run-dir/root.key). This file is read and written.]),
 182     UNBOUND_ROOTKEY_FILE="$withval",
 183 if test $on_mingw = no; then
 184     UNBOUND_ROOTKEY_FILE="$UNBOUND_RUN_DIR/root.key"
 185 else
 186     UNBOUND_ROOTKEY_FILE="C:\\Program Files\\Unbound\\root.key"
 187 fi
 188 )
 189 AC_SUBST(UNBOUND_ROOTKEY_FILE)
 190 ACX_ESCAPE_BACKSLASH($UNBOUND_ROOTKEY_FILE, hdr_rkey)
 191 AC_DEFINE_UNQUOTED(ROOT_ANCHOR_FILE, ["$hdr_rkey"], [default rootkey location])
 192
 193 AC_ARG_WITH(rootcert-file,
 194     AC_HELP_STRING([--with-rootcert-file=filename],
 195     [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.]),
 196     UNBOUND_ROOTCERT_FILE="$withval",
 197 if test $on_mingw = no; then
 198     UNBOUND_ROOTCERT_FILE="$UNBOUND_RUN_DIR/icannbundle.pem"
 199 else
 200     UNBOUND_ROOTCERT_FILE="C:\\Program Files\\Unbound\\icannbundle.pem"
 201 fi
 202 )
 203 AC_SUBST(UNBOUND_ROOTCERT_FILE)
 204 ACX_ESCAPE_BACKSLASH($UNBOUND_ROOTCERT_FILE, hdr_rpem)
 205 AC_DEFINE_UNQUOTED(ROOT_CERT_FILE, ["$hdr_rpem"], [default rootcert location])
 206
 207 AC_ARG_WITH(username,
 208     AC_HELP_STRING([--with-username=user],
 209     [set default user that unbound changes to (default user is unbound)]),
 210     UNBOUND_USERNAME="$withval",
 211     UNBOUND_USERNAME="unbound")
 212 AC_SUBST(UNBOUND_USERNAME)
 213 AC_DEFINE_UNQUOTED(UB_USERNAME, ["$UNBOUND_USERNAME"], [default username])
 214
 215 AC_DEFINE(WINVER, 0x0502, [the version of the windows API enabled])
 216 ACX_RSRC_VERSION(wnvs)
 217 AC_DEFINE_UNQUOTED(RSRC_PACKAGE_VERSION, [$wnvs], [version number for resource files])
 218
 219 # Checks for typedefs, structures, and compiler characteristics.
 220 AC_C_CONST
 221 AC_LANG_C
 222 # allow user to override the -g -O2 flags.
 223 if test "x$CFLAGS" = "x" ; then
 224 ACX_CHECK_COMPILER_FLAG(g, [CFLAGS="$CFLAGS -g"])
 225 ACX_CHECK_COMPILER_FLAG(O2, [CFLAGS="$CFLAGS -O2"])
 226 fi
 227 AC_PROG_CC
 228 ACX_DEPFLAG
 229 ACX_DETERMINE_EXT_FLAGS_UNBOUND
 230
 231 # debug mode flags warnings
 232 AC_ARG_ENABLE(checking, AC_HELP_STRING([--enable-checking], [Enable warnings, asserts, makefile-dependencies]))
 233 AC_ARG_ENABLE(debug, AC_HELP_STRING([--enable-debug], [same as enable-checking]))
 234 if test "$enable_debug" = "yes"; then debug_enabled="$enable_debug";
 235 else debug_enabled="$enable_checking"; fi
 236 AC_SUBST(debug_enabled)
 237 case "$debug_enabled" in
 238         yes)
 239                 ACX_CHECK_COMPILER_FLAG(W, [CFLAGS="$CFLAGS -W"])
 240                 ACX_CHECK_COMPILER_FLAG(Wall, [CFLAGS="$CFLAGS -Wall"])
 241                 ACX_CHECK_COMPILER_FLAG(Wextra, [CFLAGS="$CFLAGS -Wextra"])
 242                 ACX_CHECK_COMPILER_FLAG(Wdeclaration-after-statement, [CFLAGS="$CFLAGS -Wdeclaration-after-statement"])
 243                 AC_DEFINE([UNBOUND_DEBUG], [], [define this to enable debug checks.])
 244                 ;;
 245         no|*)
 246                 # nothing to do.
 247                 ;;
 248 esac
 249 ACX_CHECK_FLTO
 250 ACX_CHECK_PIE
 251 ACX_CHECK_RELRO_NOW
 252
 253 AC_C_INLINE
 254 ACX_CHECK_FORMAT_ATTRIBUTE
 255 ACX_CHECK_UNUSED_ATTRIBUTE
 256
 257 if test "$srcdir" != "."; then
 258         CPPFLAGS="$CPPFLAGS -I$srcdir"
 259 fi
 260
 261 AC_DEFUN([ACX_YYLEX_DESTROY], [
 262         AC_MSG_CHECKING([for yylex_destroy])
 263         if echo %% | $LEX -t 2>&1 | grep yylex_destroy >/dev/null 2>&1; then
 264                 AC_DEFINE(LEX_HAS_YYLEX_DESTROY, 1, [if lex has yylex_destroy])
 265                 AC_MSG_RESULT(yes)
 266         else AC_MSG_RESULT(no); fi
 267 ])
 268
 269 AC_PROG_LEX
 270 ACX_YYLEX_DESTROY
 271 AC_PROG_YACC
 272 AC_CHECK_PROG(doxygen, doxygen, doxygen)
 273 AC_CHECK_TOOL(STRIP, strip)
 274 ACX_LIBTOOL_C_ONLY
 275
 276 # Checks for header files.
 277 AC_CHECK_HEADERS([stdarg.h stdbool.h netinet/in.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],,, [AC_INCLUDES_DEFAULT])
 278
 279 # check for types.
 280 # Using own tests for int64* because autoconf builtin only give 32bit.
 281 AC_CHECK_TYPE(int8_t, signed char)
 282 AC_CHECK_TYPE(int16_t, short)
 283 AC_CHECK_TYPE(int32_t, int)
 284 AC_CHECK_TYPE(int64_t, long long)
 285 AC_CHECK_TYPE(uint8_t, unsigned char)
 286 AC_CHECK_TYPE(uint16_t, unsigned short)
 287 AC_CHECK_TYPE(uint32_t, unsigned int)
 288 AC_CHECK_TYPE(uint64_t, unsigned long long)
 289 AC_TYPE_SIZE_T
 290 AC_CHECK_TYPE(ssize_t, int)
 291 AC_TYPE_UID_T
 292 AC_TYPE_PID_T
 293 AC_TYPE_OFF_T
 294 ACX_TYPE_U_CHAR
 295 ACX_TYPE_RLIM_T
 296 ACX_TYPE_SOCKLEN_T
 297 ACX_TYPE_IN_ADDR_T
 298 ACX_TYPE_IN_PORT_T
 299 ACX_CHECK_MEMCMP_SIGNED
 300
 301 AC_CHECK_SIZEOF(time_t,,[
 302 AC_INCLUDES_DEFAULT
 303 #ifdef TIME_WITH_SYS_TIME
 304 # include <sys/time.h>
 305 # include <time.h>
 306 #else
 307 # ifdef HAVE_SYS_TIME_H
 308 #  include <sys/time.h>
 309 # else
 310 #  include <time.h>
 311 # endif
 312 #endif
 313 ])
 314
 315 # add option to disable the evil rpath
 316 ACX_ARG_RPATH
 317 AC_SUBST(RUNTIME_PATH)
 318
 319 # check to see if libraries are needed for these functions.
 320 AC_SEARCH_LIBS([inet_pton], [nsl])
 321 AC_SEARCH_LIBS([socket], [socket])
 322
 323 # check wether strptime also works
 324 AC_DEFUN([AC_CHECK_STRPTIME_WORKS],
 325 [AC_REQUIRE([AC_PROG_CC])
 326 AC_MSG_CHECKING(whether strptime works)
 327 if test c${cross_compiling} = cno; then
 328 AC_RUN_IFELSE([AC_LANG_SOURCE([[
 329 #define _XOPEN_SOURCE 600
 330 #include <time.h>
 331 int main(void) { struct tm tm; char *res;
 332 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);
 333 if (!res) return 2;
 334 res = strptime("20070207111842", "%Y%m%d%H%M%S", &tm);
 335 if (!res) return 1; return 0; }
 336 ]])] , [eval "ac_cv_c_strptime_works=yes"], [eval "ac_cv_c_strptime_works=no"])
 337 else
 338 eval "ac_cv_c_strptime_works=maybe"
 339 fi
 340 AC_MSG_RESULT($ac_cv_c_strptime_works)
 341 if test $ac_cv_c_strptime_works = no; then
 342 AC_LIBOBJ(strptime)
 343 else
 344 AC_DEFINE_UNQUOTED([STRPTIME_WORKS], 1, [use default strptime.])
 345 fi
 346 ])dnl
 347
 348 # check some functions of the OS before linking libs (while still runnable).
 349 AC_FUNC_CHOWN
 350 AC_FUNC_FORK
 351 AC_TYPE_SIGNAL
 352 AC_FUNC_FSEEKO
 353 ACX_SYS_LARGEFILE
 354 ACX_CHECK_NONBLOCKING_BROKEN
 355 ACX_MKDIR_ONE_ARG
 356 AC_CHECK_FUNCS([strptime],[AC_CHECK_STRPTIME_WORKS],[AC_LIBOBJ([strptime])])
 357
 358 # set memory allocation checking if requested
 359 AC_ARG_ENABLE(alloc-checks, AC_HELP_STRING([--enable-alloc-checks],
 360         [ enable to memory allocation statistics, for debug purposes ]),
 361         , )
 362 AC_ARG_ENABLE(alloc-lite, AC_HELP_STRING([--enable-alloc-lite],
 363         [ enable for lightweight alloc assertions, for debug purposes ]),
 364         , )
 365 AC_ARG_ENABLE(alloc-nonregional, AC_HELP_STRING([--enable-alloc-nonregional],
 366         [ enable nonregional allocs, slow but exposes regional allocations to other memory purifiers, for debug purposes ]),
 367         , )
 368 if test x_$enable_alloc_nonregional = x_yes; then
 369         AC_DEFINE(UNBOUND_ALLOC_NONREGIONAL, 1, [use malloc not regions, for debug use])
 370 fi
 371 if test x_$enable_alloc_checks = x_yes; then
 372         AC_DEFINE(UNBOUND_ALLOC_STATS, 1, [use statistics for allocs and frees, for debug use])
 373 else
 374         if test x_$enable_alloc_lite = x_yes; then
 375                 AC_DEFINE(UNBOUND_ALLOC_LITE, 1, [use to enable lightweight alloc assertions, for debug use])
 376         else
 377                 ACX_FUNC_MALLOC([unbound])
 378         fi
 379 fi
 380
 381 # check windows threads (we use them, not pthreads, on windows).
 382 if test "$on_mingw" = "yes"; then
 383 # check windows threads
 384         AC_CHECK_HEADERS([windows.h],,, [AC_INCLUDES_DEFAULT])
 385         AC_MSG_CHECKING([for CreateThread])
 386         AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
 387 #ifdef HAVE_WINDOWS_H
 388 #include <windows.h>
 389 #endif
 390 ], [
 391         HANDLE t = CreateThread(NULL, 0, NULL, NULL, 0, NULL);
 392 ])],
 393         AC_MSG_RESULT(yes)
 394         AC_DEFINE(HAVE_WINDOWS_THREADS, 1, [Using Windows threads])
 395 ,
 396         AC_MSG_RESULT(no)
 397 )
 398
 399 else
 400 # not on mingw, check thread libraries.
 401
 402 # check for thread library.
 403 # check this first, so that the pthread lib does not get linked in via
 404 # libssl or libpython, and thus distorts the tests, and we end up using
 405 # the non-threadsafe C libraries.
 406 AC_ARG_WITH(pthreads, AC_HELP_STRING([--with-pthreads],
 407  [use pthreads library, or --without-pthreads to disable threading support.]),
 408  [ ],[ withval="yes" ])
 409 ub_have_pthreads=no
 410 if test x_$withval != x_no; then
 411         AX_PTHREAD([
 412                 AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.])
 413                 LIBS="$PTHREAD_LIBS $LIBS"
 414                 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
 415                 CC="$PTHREAD_CC"
 416                 ub_have_pthreads=yes
 417                 AC_CHECK_TYPES([pthread_spinlock_t, pthread_rwlock_t],,,[#include <pthread.h>])
 418                 ])
 419 fi
 420
 421 # check solaris thread library
 422 AC_ARG_WITH(solaris-threads, AC_HELP_STRING([--with-solaris-threads],
 423         [use solaris native thread library.]), [ ],[ withval="no" ])
 424 ub_have_sol_threads=no
 425 if test x_$withval != x_no; then
 426         if test x_$ub_have_pthreads != x_no; then
 427             AC_WARN([Have pthreads already, ignoring --with-solaris-threads])
 428         else
 429         AC_SEARCH_LIBS(thr_create, [thread],
 430         [
 431                 AC_DEFINE(HAVE_SOLARIS_THREADS, 1, [Using Solaris threads])
 432
 433                 ACX_CHECK_COMPILER_FLAG(mt, [CFLAGS="$CFLAGS -mt"],
 434                         [CFLAGS="$CFLAGS -D_REENTRANT"])
 435                 ub_have_sol_threads=yes
 436         ] , [
 437                 AC_ERROR([no solaris threads found.])
 438         ])
 439         fi
 440 fi
 441
 442 fi # end of non-mingw check of thread libraries
 443
 444 # Check for PyUnbound
 445 AC_ARG_WITH(pyunbound,
 446    AC_HELP_STRING([--with-pyunbound],
 447    [build PyUnbound, or --without-pyunbound to skip it. (default=no)]),
 448    [], [ withval="no" ])
 449
 450 ub_test_python=no
 451 ub_with_pyunbound=no
 452 if test x_$withval != x_no; then
 453    ub_with_pyunbound=yes
 454    ub_test_python=yes
 455 fi
 456
 457 # Check for Python module
 458 AC_ARG_WITH(pythonmodule,
 459    AC_HELP_STRING([--with-pythonmodule],
 460    [build Python module, or --without-pythonmodule to disable script engine. (default=no)]),
 461    [], [ withval="no" ])
 462
 463 ub_with_pythonmod=no
 464 if test x_$withval != x_no; then
 465    ub_with_pythonmod=yes
 466    ub_test_python=yes
 467 fi
 468
 469 # Check for Python & SWIG only on PyUnbound or PyModule
 470 if test x_$ub_test_python != x_no; then
 471
 472    # Check for Python
 473    ub_have_python=no
 474    ac_save_LIBS="$LIBS" dnl otherwise AC_PYTHON_DEVEL thrashes $LIBS
 475    AC_PYTHON_DEVEL
 476    if test ! -z "$PYTHON_VERSION"; then
 477         if test `$PYTHON -c "print('$PYTHON_VERSION' >= '2.4.0')"` = "False"; then
 478                 AC_ERROR([Python version >= 2.4.0 is required])
 479         fi
 480
 481       [PY_MAJOR_VERSION="`$PYTHON -c \"import sys; print(sys.version_info[0])\"`"]
 482       AC_SUBST(PY_MAJOR_VERSION)
 483       # Have Python
 484       AC_DEFINE(HAVE_PYTHON,1,[Define if you have Python libraries and header files.])
 485       LIBS="$PYTHON_LDFLAGS $LIBS"
 486       CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
 487       ub_have_python=yes
 488
 489       # Check for SWIG
 490       ub_have_swig=no
 491       AC_PROG_SWIG
 492       AC_MSG_CHECKING(SWIG)
 493       if test ! -x "$SWIG"; then
 494          AC_ERROR([failed to find swig tool, install it, or do not build Python module and PyUnbound])
 495       else
 496          AC_DEFINE(HAVE_SWIG, 1, [Define if you have Swig libraries and header files.])
 497          AC_SUBST(swig, "$SWIG")
 498          AC_MSG_RESULT(present)
 499
 500          # If have Python & SWIG
 501          # Declare PythonMod
 502          if test x_$ub_with_pythonmod != x_no; then
 503             AC_DEFINE(WITH_PYTHONMODULE, 1, [Define if you want Python module.])
 504             WITH_PYTHONMODULE=yes
 505             AC_SUBST(WITH_PYTHONMODULE)
 506             PYTHONMOD_OBJ="pythonmod.lo pythonmod_utils.lo"
 507             AC_SUBST(PYTHONMOD_OBJ)
 508             PYTHONMOD_HEADER='$(srcdir)/pythonmod/pythonmod.h'
 509             AC_SUBST(PYTHONMOD_HEADER)
 510             PYTHONMOD_INSTALL=pythonmod-install
 511             AC_SUBST(PYTHONMOD_INSTALL)
 512             PYTHONMOD_UNINSTALL=pythonmod-uninstall
 513             AC_SUBST(PYTHONMOD_UNINSTALL)
 514          fi
 515
 516          # Declare PyUnbound
 517          if test x_$ub_with_pyunbound != x_no; then
 518             AC_DEFINE(WITH_PYUNBOUND, 1, [Define if you want PyUnbound.])
 519             WITH_PYUNBOUND=yes
 520             AC_SUBST(WITH_PYUNBOUND)
 521             PYUNBOUND_OBJ="libunbound_wrap.lo"
 522             AC_SUBST(PYUNBOUND_OBJ)
 523             PYUNBOUND_TARGET="_unbound.la"
 524             AC_SUBST(PYUNBOUND_TARGET)
 525             PYUNBOUND_INSTALL=pyunbound-install
 526             AC_SUBST(PYUNBOUND_INSTALL)
 527             PYUNBOUND_UNINSTALL=pyunbound-uninstall
 528             AC_SUBST(PYUNBOUND_UNINSTALL)
 529          fi
 530       fi
 531    else
 532       AC_MSG_RESULT([*** Python libraries not found, won't build PythonMod or PyUnbound ***])
 533       ub_with_pyunbound=no
 534       ub_with_pythonmod=no
 535    fi
 536 fi
 537
 538 if test "`uname`" = "NetBSD"; then
 539         NETBSD_LINTFLAGS='"-D__RENAME(x)=" -D_NETINET_IN_H_'
 540         AC_SUBST(NETBSD_LINTFLAGS)
 541 fi
 542 CONFIG_DATE=`date +%Y%m%d`
 543 AC_SUBST(CONFIG_DATE)
 544
 545 # Checks for libraries.
 546
 547 # libnss
 548 USE_NSS="no"
 549 AC_ARG_WITH([nss], AC_HELP_STRING([--with-nss=path],
 550         [use libnss instead of openssl, installed at path.]),
 551         [
 552         USE_NSS="yes"
 553         AC_DEFINE(HAVE_NSS, 1, [Use libnss for crypto])
 554         if test "$withval" != "" -a "$withval" != "yes"; then
 555                 CPPFLAGS="$CPPFLAGS -I$withval/include/nss3"
 556                 LDFLAGS="$LDFLAGS -L$withval/lib"
 557                 ACX_RUNTIME_PATH_ADD([$withval/lib])
 558                 CPPFLAGS="-I$withval/include/nspr4 $CPPFLAGS"
 559         else
 560                 CPPFLAGS="$CPPFLAGS -I/usr/include/nss3"
 561                 CPPFLAGS="-I/usr/include/nspr4 $CPPFLAGS"
 562         fi
 563         LIBS="$LIBS -lnss3 -lnspr4"
 564         ]
 565 )
 566
 567 # openssl
 568 if test $USE_NSS = "no"; then
 569 ACX_WITH_SSL
 570 ACX_LIB_SSL
 571 AC_MSG_CHECKING([for LibreSSL])
 572 if grep VERSION_TEXT $ssldir/include/openssl/opensslv.h | grep "LibreSSL" >/dev/null; then
 573         AC_MSG_RESULT([yes])
 574         AC_DEFINE([HAVE_LIBRESSL], [1], [Define if we have LibreSSL])
 575         # libressl provides these compat functions, but they may also be
 576         # declared by the OS in libc.  See if they have been declared.
 577         AC_CHECK_DECLS([strlcpy,strlcat,arc4random,arc4random_uniform,reallocarray])
 578 else
 579         AC_MSG_RESULT([no])
 580 fi
 581 AC_CHECK_HEADERS([openssl/conf.h],,, [AC_INCLUDES_DEFAULT])
 582 AC_CHECK_HEADERS([openssl/engine.h],,, [AC_INCLUDES_DEFAULT])
 583 AC_CHECK_FUNCS([OPENSSL_config EVP_sha1 EVP_sha256 EVP_sha512 FIPS_mode])
 584 AC_CHECK_DECLS([SSL_COMP_get_compression_methods,sk_SSL_COMP_pop_free,SSL_CTX_set_ecdh_auto], [], [], [
 585 AC_INCLUDES_DEFAULT
 586 #ifdef HAVE_OPENSSL_ERR_H
 587 #include <openssl/err.h>
 588 #endif
 589
 590 #ifdef HAVE_OPENSSL_RAND_H
 591 #include <openssl/rand.h>
 592 #endif
 593
 594 #ifdef HAVE_OPENSSL_CONF_H
 595 #include <openssl/conf.h>
 596 #endif
 597
 598 #ifdef HAVE_OPENSSL_ENGINE_H
 599 #include <openssl/engine.h>
 600 #endif
 601 #include <openssl/ssl.h>
 602 #include <openssl/evp.h>
 603 ])
 604 fi
 605
 606
 607 AC_ARG_ENABLE(sha2, AC_HELP_STRING([--disable-sha2], [Disable SHA256 and SHA512 RRSIG support]))
 608 case "$enable_sha2" in
 609         no)
 610         ;;
 611         yes|*)
 612         AC_DEFINE([USE_SHA2], [1], [Define this to enable SHA256 and SHA512 support.])
 613         ;;
 614 esac
 615
 616 # check wether gost also works
 617 AC_DEFUN([AC_CHECK_GOST_WORKS],
 618 [AC_REQUIRE([AC_PROG_CC])
 619 AC_MSG_CHECKING([if GOST works])
 620 if test c${cross_compiling} = cno; then
 621 BAKCFLAGS="$CFLAGS"
 622 if test -n "$ssldir"; then
 623         CFLAGS="$CFLAGS -Wl,-rpath,$ssldir/lib"
 624 fi
 625 AC_RUN_IFELSE([AC_LANG_SOURCE([[
 626 #include <string.h>
 627 #include <openssl/ssl.h>
 628 #include <openssl/evp.h>
 629 #include <openssl/engine.h>
 630 #include <openssl/conf.h>
 631 /* routine to load gost (from sldns) */
 632 int load_gost_id(void)
 633 {
 634         static int gost_id = 0;
 635         const EVP_PKEY_ASN1_METHOD* meth;
 636         ENGINE* e;
 637
 638         if(gost_id) return gost_id;
 639
 640         /* see if configuration loaded gost implementation from other engine*/
 641         meth = EVP_PKEY_asn1_find_str(NULL, "gost2001", -1);
 642         if(meth) {
 643                 EVP_PKEY_asn1_get0_info(&gost_id, NULL, NULL, NULL, NULL, meth);
 644                 return gost_id;
 645         }
 646
 647         /* see if engine can be loaded already */
 648         e = ENGINE_by_id("gost");
 649         if(!e) {
 650                 /* load it ourself, in case statically linked */
 651                 ENGINE_load_builtin_engines();
 652                 ENGINE_load_dynamic();
 653                 e = ENGINE_by_id("gost");
 654         }
 655         if(!e) {
 656                 /* no gost engine in openssl */
 657                 return 0;
 658         }
 659         if(!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
 660                 ENGINE_finish(e);
 661                 ENGINE_free(e);
 662                 return 0;
 663         }
 664
 665         meth = EVP_PKEY_asn1_find_str(&e, "gost2001", -1);
 666         if(!meth) {
 667                 /* algo not found */
 668                 ENGINE_finish(e);
 669                 ENGINE_free(e);
 670                 return 0;
 671         }
 672         EVP_PKEY_asn1_get0_info(&gost_id, NULL, NULL, NULL, NULL, meth);
 673         return gost_id;
 674 }
 675 int main(void) {
 676         EVP_MD_CTX* ctx;
 677         const EVP_MD* md;
 678         unsigned char digest[64]; /* its a 256-bit digest, so uses 32 bytes */
 679         const char* str = "Hello world";
 680         const unsigned char check[] = {
 681                 0x40 , 0xed , 0xf8 , 0x56 , 0x5a , 0xc5 , 0x36 , 0xe1 ,
 682                 0x33 , 0x7c , 0x7e , 0x87 , 0x62 , 0x1c , 0x42 , 0xe0 ,
 683                 0x17 , 0x1b , 0x5e , 0xce , 0xa8 , 0x46 , 0x65 , 0x4d ,
 684                 0x8d , 0x3e , 0x22 , 0x9b , 0xe1 , 0x30 , 0x19 , 0x9d
 685         };
 686         OPENSSL_config(NULL);
 687         (void)load_gost_id();
 688         md = EVP_get_digestbyname("md_gost94");
 689         if(!md) return 1;
 690         memset(digest, 0, sizeof(digest));
 691         ctx = EVP_MD_CTX_create();
 692         if(!ctx) return 2;
 693         if(!EVP_DigestInit_ex(ctx, md, NULL)) return 3;
 694         if(!EVP_DigestUpdate(ctx, str, 10)) return 4;
 695         if(!EVP_DigestFinal_ex(ctx, digest, NULL)) return 5;
 696         /* uncomment to see the hash calculated.
 697                 {int i;
 698                 for(i=0; i<32; i++)
 699                         printf(" %2.2x", (int)digest[i]);
 700                 printf("\n");}
 701         */
 702         if(memcmp(digest, check, sizeof(check)) != 0)
 703                 return 6;
 704         return 0;
 705 }
 706 ]])] , [eval "ac_cv_c_gost_works=yes"], [eval "ac_cv_c_gost_works=no"])
 707 CFLAGS="$BAKCFLAGS"
 708 else
 709 eval "ac_cv_c_gost_works=maybe"
 710 fi
 711 AC_MSG_RESULT($ac_cv_c_gost_works)
 712 ])dnl
 713
 714 AC_ARG_ENABLE(gost, AC_HELP_STRING([--disable-gost], [Disable GOST support]))
 715 use_gost="no"
 716 if test $USE_NSS = "no"; then
 717 case "$enable_gost" in
 718         no)
 719         ;;
 720         *)
 721         AC_CHECK_FUNC(EVP_PKEY_set_type_str, [:],[AC_MSG_ERROR([OpenSSL 1.0.0 is needed for GOST support])])
 722         AC_CHECK_FUNC(EC_KEY_new, [], [AC_MSG_ERROR([OpenSSL does not support ECC, needed for GOST support])])
 723         AC_CHECK_GOST_WORKS
 724         if test "$ac_cv_c_gost_works" != no; then
 725                 use_gost="yes"
 726                 AC_DEFINE([USE_GOST], [1], [Define this to enable GOST support.])
 727         fi
 728         ;;
 729 esac
 730 fi dnl !USE_NSS
 731
 732 AC_ARG_ENABLE(ecdsa, AC_HELP_STRING([--disable-ecdsa], [Disable ECDSA support]))
 733 use_ecdsa="no"
 734 case "$enable_ecdsa" in
 735     no)
 736       ;;
 737     *)
 738       if test $USE_NSS = "no"; then
 739               AC_CHECK_FUNC(ECDSA_sign, [], [AC_MSG_ERROR([OpenSSL does not support ECDSA: please upgrade or rerun with --disable-ecdsa])])
 740               AC_CHECK_FUNC(SHA384_Init, [], [AC_MSG_ERROR([OpenSSL does not support SHA384: please upgrade or rerun with --disable-ecdsa])])
 741               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
 742 #include <openssl/evp.h>
 743               ])
 744               # see if OPENSSL 1.0.0 or later (has EVP MD and Verify independency)
 745               AC_MSG_CHECKING([if openssl supports SHA2 and ECDSA with EVP])
 746               if grep OPENSSL_VERSION_TEXT $ssldir/include/openssl/opensslv.h | grep "OpenSSL" >/dev/null; then
 747                 if grep OPENSSL_VERSION_NUMBER $ssldir/include/openssl/opensslv.h | grep 0x0 >/dev/null; then
 748                   AC_MSG_RESULT([no])
 749                   AC_DEFINE_UNQUOTED([USE_ECDSA_EVP_WORKAROUND], [1], [Define this to enable an EVP workaround for older openssl])
 750                 else
 751                   AC_MSG_RESULT([yes])
 752                 fi
 753               else
 754                 # not OpenSSL, thus likely LibreSSL, which supports it
 755                 AC_MSG_RESULT([yes])
 756               fi
 757       fi
 758       # we now know we have ECDSA and the required curves.
 759       AC_DEFINE_UNQUOTED([USE_ECDSA], [1], [Define this to enable ECDSA support.])
 760       use_ecdsa="yes"
 761       ;;
 762 esac
 763
 764 AC_ARG_ENABLE(event-api, AC_HELP_STRING([--enable-event-api], [Enable (experimental) libevent-based libunbound API installed to unbound-event.h]))
 765 use_unbound_event="no"
 766 case "$enable_event_api" in
 767     yes)
 768       use_unbound_event="yes"
 769       ;;
 770     *)
 771       ;;
 772 esac
 773
 774 # check for libevent
 775 AC_ARG_WITH(libevent, AC_HELP_STRING([--with-libevent=pathname],
 776     [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.]),
 777     [ ],[ withval="no" ])
 778 if test x_$withval = x_yes -o x_$withval != x_no; then
 779         AC_MSG_CHECKING(for libevent)
 780         if test x_$withval = x_ -o x_$withval = x_yes; then
 781             withval="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr"
 782         fi
 783         for dir in $withval; do
 784             thedir="$dir"
 785             if test -f "$dir/include/event.h" -o -f "$dir/include/event2/event.h"; then
 786                 found_libevent="yes"
 787                 dnl assume /usr is in default path.
 788                 if test "$thedir" != "/usr"; then
 789                     CPPFLAGS="$CPPFLAGS -I$thedir/include"
 790                 fi
 791                 break;
 792             fi
 793         done
 794         if test x_$found_libevent != x_yes; then
 795                 if test -f "$dir/event.h" -a \( -f "$dir/libevent.la" -o -f "$dir/libev.la" \) ; then
 796                         # libevent source directory
 797                         AC_MSG_RESULT(found in $thedir)
 798                         CPPFLAGS="$CPPFLAGS -I$thedir -I$thedir/include"
 799                         BAK_LDFLAGS_SET="1"
 800                         BAK_LDFLAGS="$LDFLAGS"
 801                         # remove evdns from linking
 802                         mkdir build >/dev/null 2>&1
 803                         mkdir build/libevent >/dev/null 2>&1
 804                         mkdir build/libevent/.libs >/dev/null 2>&1
 805                         ev_files_o=`ls $thedir/*.o | grep -v evdns\.o | grep -v bufferevent_openssl\.o`
 806                         ev_files_lo=`ls $thedir/*.lo | grep -v evdns\.lo | grep -v bufferevent_openssl\.lo`
 807                         ev_files_libso=`ls $thedir/.libs/*.o | grep -v evdns\.o | grep -v bufferevent_openssl\.o`
 808                         cp $ev_files_o build/libevent
 809                         cp $ev_files_lo build/libevent
 810                         cp $ev_files_libso build/libevent/.libs
 811                         LATE_LDFLAGS="build/libevent/*.lo -lm"
 812                         LDFLAGS="build/libevent/*.o $LDFLAGS -lm"
 813                 else
 814                         AC_MSG_ERROR([Cannot find the libevent library in $withval
 815 You can restart ./configure --with-libevent=no to use a builtin alternative.
 816 Please note that this alternative is not as capable as libevent when using
 817 large outgoing port ranges.  ])
 818                 fi
 819         else
 820             AC_MSG_RESULT(found in $thedir)
 821             dnl if event2 exists and no event lib in dir itself, use subdir
 822             if test ! -f $thedir/lib/libevent.a -a ! -f $thedir/lib/libevent.so -a -d "$thedir/lib/event2"; then
 823                     LDFLAGS="$LDFLAGS -L$thedir/lib/event2"
 824                     ACX_RUNTIME_PATH_ADD([$thedir/lib/event2])
 825             else
 826                     dnl assume /usr is in default path, do not add "".
 827                     if test "$thedir" != "/usr" -a "$thedir" != ""; then
 828                         LDFLAGS="$LDFLAGS -L$thedir/lib"
 829                         ACX_RUNTIME_PATH_ADD([$thedir/lib])
 830                     fi
 831             fi
 832         fi
 833         # check for library used by libevent after 1.3c
 834         AC_SEARCH_LIBS([clock_gettime], [rt])
 835
 836         # is the event.h header libev or libevent?
 837         AC_CHECK_HEADERS([event.h],,, [AC_INCLUDES_DEFAULT])
 838         AC_CHECK_DECL(EV_VERSION_MAJOR, [
 839                 AC_SEARCH_LIBS(event_set, [ev])
 840         ],[
 841                 AC_SEARCH_LIBS(event_set, [event])
 842         ],[AC_INCLUDES_DEFAULT
 843 #include <event.h>
 844         ])
 845         AC_CHECK_FUNCS([event_base_free]) # only in libevent 1.2 and later
 846         AC_CHECK_FUNCS([event_base_once]) # only in libevent 1.4.1 and later
 847         AC_CHECK_FUNCS([event_base_new]) # only in libevent 1.4.1 and later
 848         AC_CHECK_FUNCS([event_base_get_method]) # only in libevent 1.4.3 and later
 849         AC_CHECK_FUNCS([ev_loop]) # only in libev. (tested on 3.51)
 850         AC_CHECK_FUNCS([ev_default_loop]) # only in libev. (tested on 4.00)
 851         if test -n "$BAK_LDFLAGS_SET"; then
 852                 LDFLAGS="$BAK_LDFLAGS"
 853         fi
 854         if test "$use_unbound_event" = "yes"; then
 855                 AC_SUBST(UNBOUND_EVENT_INSTALL, [unbound-event-install])
 856                 AC_SUBST(UNBOUND_EVENT_UNINSTALL, [unbound-event-uninstall])
 857         fi
 858 else
 859         AC_DEFINE(USE_MINI_EVENT, 1, [Define if you want to use internal select based events])
 860 fi
 861
 862 # check for libexpat
 863 AC_ARG_WITH(libexpat, AC_HELP_STRING([--with-libexpat=path],
 864     [specify explicit path for libexpat.]),
 865     [ ],[ withval="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr" ])
 866 AC_MSG_CHECKING(for libexpat)
 867 found_libexpat="no"
 868 for dir in $withval ; do
 869             if test -f "$dir/include/expat.h"; then
 870                 found_libexpat="yes"
 871                 dnl assume /usr is in default path.
 872                 if test "$dir" != "/usr"; then
 873                     CPPFLAGS="$CPPFLAGS -I$dir/include"
 874                     LDFLAGS="$LDFLAGS -L$dir/lib"
 875                 fi
 876                 AC_MSG_RESULT(found in $dir)
 877                 break;
 878             fi
 879 done
 880 if test x_$found_libexpat != x_yes; then
 881         AC_ERROR([Could not find libexpat, expat.h])
 882 fi
 883 AC_CHECK_HEADERS([expat.h],,, [AC_INCLUDES_DEFAULT])
 884
 885 # set static linking if requested
 886 AC_SUBST(staticexe)
 887 staticexe=""
 888 AC_ARG_ENABLE(static-exe, AC_HELP_STRING([--enable-static-exe],
 889         [ enable to compile executables statically against (event) libs, for debug purposes ]),
 890         , )
 891 if test x_$enable_static_exe = x_yes; then
 892         staticexe="-static"
 893         if test "$on_mingw" = yes; then
 894                 staticexe="-all-static"
 895                 # for static crosscompile, include gdi32 and zlib here.
 896                 if test "`uname`" = "Linux"; then
 897                         LIBS="$LIBS -lgdi32 -lz"
 898                 fi
 899         fi
 900 fi
 901
 902 # set lock checking if requested
 903 AC_ARG_ENABLE(lock_checks, AC_HELP_STRING([--enable-lock-checks],
 904         [ enable to check lock and unlock calls, for debug purposes ]),
 905         , )
 906 if test x_$enable_lock_checks = x_yes; then
 907         AC_DEFINE(ENABLE_LOCK_CHECKS, 1, [Define if you want to use debug lock checking (slow).])
 908         CHECKLOCK_OBJ="checklocks.lo"
 909         AC_SUBST(CHECKLOCK_OBJ)
 910 fi
 911
 912 ACX_CHECK_GETADDRINFO_WITH_INCLUDES
 913 if test "$USE_WINSOCK" = 1; then
 914         AC_DEFINE(UB_ON_WINDOWS, 1, [Use win32 resources and API])
 915         AC_CHECK_HEADERS([iphlpapi.h],,, [AC_INCLUDES_DEFAULT
 916 #include <windows.h>
 917         ])
 918         AC_CHECK_TOOL(WINDRES, windres)
 919         LIBS="$LIBS -liphlpapi"
 920         WINAPPS="unbound-service-install.exe unbound-service-remove.exe anchor-update.exe"
 921         AC_SUBST(WINAPPS)
 922         WIN_DAEMON_SRC="winrc/win_svc.c winrc/w_inst.c"
 923         AC_SUBST(WIN_DAEMON_SRC)
 924         WIN_DAEMON_OBJ="win_svc.lo w_inst.lo"
 925         AC_SUBST(WIN_DAEMON_OBJ)
 926         WIN_DAEMON_OBJ_LINK="rsrc_unbound.o"
 927         AC_SUBST(WIN_DAEMON_OBJ_LINK)
 928         WIN_HOST_OBJ_LINK="rsrc_unbound_host.o"
 929         AC_SUBST(WIN_HOST_OBJ_LINK)
 930         WIN_UBANCHOR_OBJ_LINK="rsrc_unbound_anchor.o log.lo locks.lo"
 931         AC_SUBST(WIN_UBANCHOR_OBJ_LINK)
 932         WIN_CONTROL_OBJ_LINK="rsrc_unbound_control.o"
 933         AC_SUBST(WIN_CONTROL_OBJ_LINK)
 934         WIN_CHECKCONF_OBJ_LINK="rsrc_unbound_checkconf.o"
 935         AC_SUBST(WIN_CHECKCONF_OBJ_LINK)
 936 fi
 937 if test $ac_cv_func_getaddrinfo = no; then
 938         AC_LIBOBJ([fake-rfc2553])
 939 fi
 940 # check after getaddrinfo for its libraries
 941 ACX_FUNC_IOCTLSOCKET
 942
 943 # see if daemon(3) exists, and if it is deprecated.
 944 AC_CHECK_FUNCS([daemon])
 945 if test $ac_cv_func_daemon = yes; then
 946         ACX_FUNC_DEPRECATED([daemon], [(void)daemon(0, 0);], [
 947 #include <stdlib.h>
 948 ])
 949 fi
 950
 951 AC_CHECK_MEMBERS([struct sockaddr_un.sun_len],,,[
 952 AC_INCLUDES_DEFAULT
 953 #ifdef HAVE_SYS_UN_H
 954 #include <sys/un.h>
 955 #endif
 956 ])
 957 AC_CHECK_MEMBERS([struct in_pktinfo.ipi_spec_dst],,,[
 958 AC_INCLUDES_DEFAULT
 959 #if HAVE_SYS_PARAM_H
 960 #include <sys/param.h>
 961 #endif
 962
 963 #ifdef HAVE_SYS_SOCKET_H
 964 #include <sys/socket.h>
 965 #endif
 966
 967 #ifdef HAVE_SYS_UIO_H
 968 #include <sys/uio.h>
 969 #endif
 970
 971 #ifdef HAVE_NETINET_IN_H
 972 #include <netinet/in.h>
 973 #endif
 974
 975 #ifdef HAVE_ARPA_INET_H
 976 #include <arpa/inet.h>
 977 #endif
 978
 979 #ifdef HAVE_WINSOCK2_H
 980 #include <winsock2.h>
 981 #endif
 982
 983 #ifdef HAVE_WS2TCPIP_H
 984 #include <ws2tcpip.h>
 985 #endif
 986 ])
 987 AC_SEARCH_LIBS([setusercontext], [util])
 988 AC_CHECK_FUNCS([tzset sigprocmask fcntl getpwnam getrlimit setrlimit setsid sbrk chroot kill chown sleep usleep random srandom recvmsg sendmsg writev socketpair glob initgroups strftime localtime_r setusercontext _beginthreadex endservent endprotoent])
 989 AC_CHECK_FUNCS([setresuid],,[AC_CHECK_FUNCS([setreuid])])
 990 AC_CHECK_FUNCS([setresgid],,[AC_CHECK_FUNCS([setregid])])
 991
 992 # check if setreuid en setregid fail, on MacOSX10.4(darwin8).
 993 if echo $build_os | grep darwin8 > /dev/null; then
 994         AC_DEFINE(DARWIN_BROKEN_SETREUID, 1, [Define this if on macOSX10.4-darwin8 and setreuid and setregid do not work])
 995 fi
 996 AC_REPLACE_FUNCS(inet_aton)
 997 AC_REPLACE_FUNCS(inet_pton)
 998 AC_REPLACE_FUNCS(inet_ntop)
 999 AC_REPLACE_FUNCS(snprintf)
1000 AC_REPLACE_FUNCS(strlcat)
1001 AC_REPLACE_FUNCS(strlcpy)
1002 AC_REPLACE_FUNCS(memmove)
1003 AC_REPLACE_FUNCS(gmtime_r)
1004 dnl without CTIME, ARC4-functions and without reallocarray.
1005 LIBOBJ_WITHOUT_CTIMEARC4="$LIBOBJS"
1006 AC_SUBST(LIBOBJ_WITHOUT_CTIMEARC4)
1007 AC_REPLACE_FUNCS(reallocarray)
1008 if test "$USE_NSS" = "no"; then
1009         AC_REPLACE_FUNCS(arc4random)
1010         AC_REPLACE_FUNCS(arc4random_uniform)
1011         if test "$ac_cv_func_arc4random" = "no"; then
1012                 AC_LIBOBJ(explicit_bzero)
1013                 AC_LIBOBJ(arc4_lock)
1014                 AC_CHECK_FUNCS([getentropy],,[
1015                     if test "$USE_WINSOCK" = 1; then
1016                         AC_LIBOBJ(getentropy_win)
1017                     else
1018                         case `uname` in
1019                         Darwin)
1020                                 AC_LIBOBJ(getentropy_osx)
1021                         ;;
1022                         SunOS)
1023                                 AC_LIBOBJ(getentropy_solaris)
1024                                 AC_CHECK_HEADERS([sys/sha2.h],, [
1025                                         AC_CHECK_FUNCS([SHA512_Update],,[
1026                                                 AC_LIBOBJ(sha512)
1027                                         ])
1028                                 ], [AC_INCLUDES_DEFAULT])
1029                                 if test "$ac_cv_header_sys_sha2_h" = "yes"; then
1030                                         # this lib needed for sha2 on solaris
1031                                         LIBS="$LIBS -lmd"
1032                                 fi
1033                                 AC_SEARCH_LIBS([clock_gettime], [rt])
1034                         ;;
1035                         Linux|*)
1036                                 AC_LIBOBJ(getentropy_linux)
1037                                 AC_CHECK_FUNCS([SHA512_Update],,[
1038                                         AC_DEFINE([COMPAT_SHA512], [1], [Do sha512 definitions in config.h])
1039                                         AC_LIBOBJ(sha512)
1040                                 ])
1041                                 AC_CHECK_HEADERS([sys/sysctl.h],,, [AC_INCLUDES_DEFAULT])
1042                                 AC_CHECK_FUNCS([getauxval])
1043                                 AC_SEARCH_LIBS([clock_gettime], [rt])
1044                         ;;
1045                         esac
1046                     fi
1047                 ])
1048         fi
1049 fi
1050 LIBOBJ_WITHOUT_CTIME="$LIBOBJS"
1051 AC_SUBST(LIBOBJ_WITHOUT_CTIME)
1052 AC_REPLACE_FUNCS(ctime_r)
1053
1054 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]))
1055 case "$enable_allsymbols" in
1056         yes)
1057         COMMON_OBJ_ALL_SYMBOLS=""
1058         UBSYMS=""
1059         EXTRALINK="-L. -L.libs -lunbound"
1060         AC_DEFINE(EXPORT_ALL_SYMBOLS, 1, [Define this if you enabled-allsymbols from libunbound to link binaries to it for smaller install size, but the libunbound export table is polluted by internal symbols])
1061         ;;
1062         no|*)
1063         COMMON_OBJ_ALL_SYMBOLS='$(COMMON_OBJ)'
1064         UBSYMS='-export-symbols $(srcdir)/libunbound/ubsyms.def'
1065         EXTRALINK=""
1066         ;;
1067 esac
1068 AC_SUBST(COMMON_OBJ_ALL_SYMBOLS)
1069 AC_SUBST(EXTRALINK)
1070 AC_SUBST(UBSYMS)
1071 if test x_$enable_lock_checks = x_yes; then
1072         UBSYMS="-export-symbols clubsyms.def"
1073         cp ${srcdir}/libunbound/ubsyms.def clubsyms.def
1074         echo lock_protect >> clubsyms.def
1075         echo lock_unprotect >> clubsyms.def
1076         echo lock_get_mem >> clubsyms.def
1077         echo checklock_start >> clubsyms.def
1078         echo checklock_stop >> clubsyms.def
1079         echo checklock_lock >> clubsyms.def
1080         echo checklock_unlock >> clubsyms.def
1081         echo checklock_init >> clubsyms.def
1082         echo checklock_thrcreate >> clubsyms.def
1083         echo checklock_thrjoin >> clubsyms.def
1084 fi
1085
1086 # check for dnstap if requested
1087 dt_DNSTAP([$UNBOUND_RUN_DIR/dnstap.sock],
1088     [
1089         AC_DEFINE([USE_DNSTAP], [1], [Define to 1 to enable dnstap support])
1090         AC_SUBST([ENABLE_DNSTAP], [1])
1091
1092         AC_SUBST([opt_dnstap_socket_path])
1093         ACX_ESCAPE_BACKSLASH($opt_dnstap_socket_path, hdr_dnstap_socket_path)
1094         AC_DEFINE_UNQUOTED(DNSTAP_SOCKET_PATH,
1095             ["$hdr_dnstap_socket_path"], [default dnstap socket path])
1096
1097         AC_SUBST([DNSTAP_SRC], ["dnstap/dnstap.c dnstap/dnstap.pb-c.c"])
1098         AC_SUBST([DNSTAP_OBJ], ["dnstap.lo dnstap.pb-c.lo"])
1099     ],
1100     [
1101         AC_SUBST([ENABLE_DNSTAP], [0])
1102     ]
1103 )
1104
1105 AC_MSG_CHECKING([if ${MAKE:-make} supports $< with implicit rule in scope])
1106 # on openBSD, the implicit rule make $< work.
1107 # on Solaris, it does not work ($? is changed sources, $^ lists dependencies).
1108 # gmake works.
1109 cat >conftest.make <<EOF
1110 all:    conftest.lo
1111
1112 conftest.lo foo.lo bla.lo:
1113         if test -f "\$<"; then touch \$@; fi
1114
1115 .SUFFIXES: .lo
1116 .c.lo:
1117         if test -f "\$<"; then touch \$@; fi
1118
1119 conftest.lo:        conftest.dir/conftest.c
1120 EOF
1121 mkdir conftest.dir
1122 touch conftest.dir/conftest.c
1123 rm -f conftest.lo conftest.c
1124 ${MAKE:-make} -f conftest.make >/dev/null
1125 rm -f conftest.make conftest.c conftest.dir/conftest.c
1126 rm -rf conftest.dir
1127 if test ! -f conftest.lo; then
1128         AC_MSG_RESULT(no)
1129         SOURCEDETERMINE='echo "$^" | awk "-F " "{print \$$1;}" > .source'
1130         SOURCEFILE='`cat .source`'
1131 else
1132         AC_MSG_RESULT(yes)
1133         SOURCEDETERMINE=':'
1134         SOURCEFILE='$<'
1135 fi
1136 rm -f conftest.lo
1137 AC_SUBST(SOURCEDETERMINE)
1138 AC_SUBST(SOURCEFILE)
1139
1140 # see if we want to build the library or everything
1141 ALLTARGET="alltargets"
1142 INSTALLTARGET="install-all"
1143 AC_ARG_WITH(libunbound-only, AC_HELP_STRING([--with-libunbound-only],
1144         [do not build daemon and tool programs]),
1145         [
1146         if test "$withval" = "yes"; then
1147                 ALLTARGET="lib"
1148                 INSTALLTARGET="install-lib"
1149         fi
1150 ])
1151 AC_SUBST(ALLTARGET)
1152 AC_SUBST(INSTALLTARGET)
1153
1154 ACX_STRIP_EXT_FLAGS
1155 LDFLAGS="$LATE_LDFLAGS $LDFLAGS"
1156
1157 AC_DEFINE_UNQUOTED([MAXSYSLOGMSGLEN], [10240], [Define to the maximum message length to pass to syslog.])
1158
1159 AH_BOTTOM(
1160 dnl this must be first AH_CONFIG, to define the flags before any includes.
1161 AHX_CONFIG_EXT_FLAGS
1162
1163 dnl includes
1164 [
1165 #ifndef UNBOUND_DEBUG
1166 #  define NDEBUG
1167 #endif
1168
1169 /** Use small-ldns codebase */
1170 #define USE_SLDNS 1
1171 #ifdef HAVE_SSL
1172 #  define LDNS_BUILD_CONFIG_HAVE_SSL 1
1173 #endif
1174
1175 #include <stdio.h>
1176 #include <string.h>
1177 #include <unistd.h>
1178 #include <assert.h>
1179
1180 #if STDC_HEADERS
1181 #include <stdlib.h>
1182 #include <stddef.h>
1183 #endif
1184
1185 #ifdef HAVE_STDARG_H
1186 #include <stdarg.h>
1187 #endif
1188
1189 #ifdef HAVE_STDINT_H
1190 #include <stdint.h>
1191 #endif
1192
1193 #include <errno.h>
1194
1195 #if HAVE_SYS_PARAM_H
1196 #include <sys/param.h>
1197 #endif
1198
1199 #ifdef HAVE_SYS_SOCKET_H
1200 #include <sys/socket.h>
1201 #endif
1202
1203 #ifdef HAVE_SYS_UIO_H
1204 #include <sys/uio.h>
1205 #endif
1206
1207 #ifdef HAVE_NETINET_IN_H
1208 #include <netinet/in.h>
1209 #endif
1210
1211 #ifdef HAVE_ARPA_INET_H
1212 #include <arpa/inet.h>
1213 #endif
1214
1215 #ifdef HAVE_WINSOCK2_H
1216 #include <winsock2.h>
1217 #endif
1218
1219 #ifdef HAVE_WS2TCPIP_H
1220 #include <ws2tcpip.h>
1221 #endif
1222
1223 #ifndef USE_WINSOCK
1224 #define ARG_LL "%ll"
1225 #else
1226 #define ARG_LL "%I64"
1227 #endif
1228
1229 #ifndef AF_LOCAL
1230 #define AF_LOCAL AF_UNIX
1231 #endif
1232 ]
1233
1234 AHX_CONFIG_FORMAT_ATTRIBUTE
1235 AHX_CONFIG_UNUSED_ATTRIBUTE
1236 AHX_CONFIG_FSEEKO
1237 AHX_CONFIG_MAXHOSTNAMELEN
1238 AHX_CONFIG_SNPRINTF(unbound)
1239 AHX_CONFIG_INET_PTON(unbound)
1240 AHX_CONFIG_INET_NTOP(unbound)
1241 AHX_CONFIG_INET_ATON(unbound)
1242 AHX_CONFIG_MEMMOVE(unbound)
1243 AHX_CONFIG_STRLCAT(unbound)
1244 AHX_CONFIG_STRLCPY(unbound)
1245 AHX_CONFIG_GMTIME_R(unbound)
1246 AHX_CONFIG_REALLOCARRAY(unbound)
1247 AHX_CONFIG_W32_SLEEP
1248 AHX_CONFIG_W32_USLEEP
1249 AHX_CONFIG_W32_RANDOM
1250 AHX_CONFIG_W32_SRANDOM
1251 AHX_CONFIG_W32_FD_SET_T
1252 AHX_CONFIG_IPV6_MIN_MTU
1253 AHX_MEMCMP_BROKEN(unbound)
1254
1255 [
1256 #ifndef HAVE_CTIME_R
1257 #define ctime_r unbound_ctime_r
1258 char *ctime_r(const time_t *timep, char *buf);
1259 #endif
1260
1261 #if !defined(HAVE_STRPTIME) || !defined(STRPTIME_WORKS)
1262 #define strptime unbound_strptime
1263 struct tm;
1264 char *strptime(const char *s, const char *format, struct tm *tm);
1265 #endif
1266
1267 #ifdef HAVE_LIBRESSL
1268 #  if !HAVE_DECL_STRLCPY
1269 size_t strlcpy(char *dst, const char *src, size_t siz);
1270 #  endif
1271 #  if !HAVE_DECL_STRLCAT
1272 size_t strlcat(char *dst, const char *src, size_t siz);
1273 #  endif
1274 #  if !HAVE_DECL_ARC4RANDOM && defined(HAVE_ARC4RANDOM)
1275 uint32_t arc4random(void);
1276 #  endif
1277 #  if !HAVE_DECL_ARC4RANDOM_UNIFORM && defined(HAVE_ARC4RANDOM_UNIFORM)
1278 uint32_t arc4random_uniform(uint32_t upper_bound);
1279 #  endif
1280 #  if !HAVE_DECL_REALLOCARRAY
1281 void *reallocarray(void *ptr, size_t nmemb, size_t size);
1282 #  endif
1283 #endif /* HAVE_LIBRESSL */
1284 #ifndef HAVE_ARC4RANDOM
1285 void explicit_bzero(void* buf, size_t len);
1286 int getentropy(void* buf, size_t len);
1287 uint32_t arc4random(void);
1288 void arc4random_buf(void* buf, size_t n);
1289 void _ARC4_LOCK(void);
1290 void _ARC4_UNLOCK(void);
1291 #endif
1292 #ifndef HAVE_ARC4RANDOM_UNIFORM
1293 uint32_t arc4random_uniform(uint32_t upper_bound);
1294 #endif
1295 #ifdef COMPAT_SHA512
1296 #ifndef SHA512_DIGEST_LENGTH
1297 #define SHA512_BLOCK_LENGTH             128
1298 #define SHA512_DIGEST_LENGTH            64
1299 #define SHA512_DIGEST_STRING_LENGTH     (SHA512_DIGEST_LENGTH * 2 + 1)
1300 typedef struct _SHA512_CTX {
1301         uint64_t        state[8];
1302         uint64_t        bitcount[2];
1303         uint8_t buffer[SHA512_BLOCK_LENGTH];
1304 } SHA512_CTX;
1305 #endif /* SHA512_DIGEST_LENGTH */
1306 void SHA512_Init(SHA512_CTX*);
1307 void SHA512_Update(SHA512_CTX*, void*, size_t);
1308 void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
1309 unsigned char *SHA512(void* data, unsigned int data_len, unsigned char *digest);
1310 #endif /* COMPAT_SHA512 */
1311
1312
1313
1314 #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))
1315    /* using version of libevent that is not threadsafe. */
1316 #  define LIBEVENT_SIGNAL_PROBLEM 1
1317 #endif
1318
1319 #ifndef CHECKED_INET6
1320 #  define CHECKED_INET6
1321 #  ifdef AF_INET6
1322 #    define INET6
1323 #  else
1324 #    define AF_INET6        28
1325 #  endif
1326 #endif /* CHECKED_INET6 */
1327
1328 #ifndef HAVE_GETADDRINFO
1329 struct sockaddr_storage;
1330 #include "compat/fake-rfc2553.h"
1331 #endif
1332
1333 #ifdef UNBOUND_ALLOC_STATS
1334 #  define malloc(s) unbound_stat_malloc_log(s, __FILE__, __LINE__, __func__)
1335 #  define calloc(n,s) unbound_stat_calloc_log(n, s, __FILE__, __LINE__, __func__)
1336 #  define free(p) unbound_stat_free_log(p, __FILE__, __LINE__, __func__)
1337 #  define realloc(p,s) unbound_stat_realloc_log(p, s, __FILE__, __LINE__, __func__)
1338 void *unbound_stat_malloc(size_t size);
1339 void *unbound_stat_calloc(size_t nmemb, size_t size);
1340 void unbound_stat_free(void *ptr);
1341 void *unbound_stat_realloc(void *ptr, size_t size);
1342 void *unbound_stat_malloc_log(size_t size, const char* file, int line,
1343         const char* func);
1344 void *unbound_stat_calloc_log(size_t nmemb, size_t size, const char* file,
1345         int line, const char* func);
1346 void unbound_stat_free_log(void *ptr, const char* file, int line,
1347         const char* func);
1348 void *unbound_stat_realloc_log(void *ptr, size_t size, const char* file,
1349         int line, const char* func);
1350 #elif defined(UNBOUND_ALLOC_LITE)
1351 #  include "util/alloc.h"
1352 #endif /* UNBOUND_ALLOC_LITE and UNBOUND_ALLOC_STATS */
1353
1354 /** default port for DNS traffic. */
1355 #define UNBOUND_DNS_PORT 53
1356 /** default port for unbound control traffic, registered port with IANA,
1357     ub-dns-control  8953/tcp    unbound dns nameserver control */
1358 #define UNBOUND_CONTROL_PORT 8953
1359 /** the version of unbound-control that this software implements */
1360 #define UNBOUND_CONTROL_VERSION 1
1361
1362 ])
1363
1364 dnl if we build from source tree, the man pages need @date@ and @version@
1365 dnl if this is a distro tarball, that was already done by makedist.sh
1366 AC_SUBST(version, [VERSION_MAJOR.VERSION_MINOR.VERSION_MICRO])
1367 AC_SUBST(date, [`date +'%b %e, %Y'`])
1368
1369 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])
1370 AC_CONFIG_HEADER([config.h])
1371 AC_OUTPUT