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