xref: /freebsd/contrib/unbound/configure.ac (revision db70ff37a051dfa19f6f3f0f0c5e3571aba91982)
1#                                               -*- Autoconf -*-
2# Process this file with autoconf to produce a configure script.
3AC_PREREQ(2.56)
4sinclude(acx_nlnetlabs.m4)
5sinclude(ax_pthread.m4)
6sinclude(acx_python.m4)
7sinclude(ac_pkg_swig.m4)
8sinclude(dnstap/dnstap.m4)
9sinclude(dnscrypt/dnscrypt.m4)
10
11# must be numbers. ac_defun because of later processing
12m4_define([VERSION_MAJOR],[1])
13m4_define([VERSION_MINOR],[8])
14m4_define([VERSION_MICRO],[1])
15AC_INIT(unbound, m4_defn([VERSION_MAJOR]).m4_defn([VERSION_MINOR]).m4_defn([VERSION_MICRO]), unbound-bugs@nlnetlabs.nl, unbound)
16AC_SUBST(UNBOUND_VERSION_MAJOR, [VERSION_MAJOR])
17AC_SUBST(UNBOUND_VERSION_MINOR, [VERSION_MINOR])
18AC_SUBST(UNBOUND_VERSION_MICRO, [VERSION_MICRO])
19
20LIBUNBOUND_CURRENT=8
21LIBUNBOUND_REVISION=1
22LIBUNBOUND_AGE=0
23# 1.0.0 had 0:12:0
24# 1.0.1 had 0:13:0
25# 1.0.2 had 0:14:0
26# 1.1.0 had 0:15:0
27# 1.1.1 had 0:16:0
28# 1.2.0 had 0:17:0
29# 1.2.1 had 0:18:0
30# 1.3.0 had 1:0:0   # ub_cancel and -export-symbols.
31# 1.3.1 had 1:1:0
32# 1.3.2 had 1:2:0
33# 1.3.3 had 1:3:0
34# 1.3.4 had 1:4:0
35# 1.4.0-snapshots had 1:5:0
36# 1.4.0 had 1:5:0 (not 2:0:0)   # ub_result.why_bogus
37# 1.4.1 had 2:1:0
38# 1.4.2 had 2:2:0
39# 1.4.3 had 2:3:0
40# 1.4.4 had 2:4:0
41# 1.4.5 had 2:5:0
42# 1.4.6 had 2:6:0
43# 1.4.7 had 2:7:0
44# 1.4.8 had 2:8:0
45# 1.4.9 had 2:9:0
46# 1.4.10 had 2:10:0
47# 1.4.11 had 2:11:0
48# 1.4.12 had 2:12:0
49# 1.4.13 had 2:13:0
50# and 1.4.13p1 and 1.4.13.p2
51# 1.4.14 had 2:14:0
52# 1.4.15 had 3:0:1 # adds ub_version()
53# 1.4.16 had 3:1:1
54# 1.4.17 had 3:2:1
55# 1.4.18 had 3:3:1
56# 1.4.19 had 3:4:1
57# 1.4.20 had 4:0:2 # adds libunbound.ttl # but shipped 3:5:1
58# 1.4.21 had 4:1:2
59# 1.4.22 had 4:1:2
60# 1.5.0 had 5:3:3 # adds ub_ctx_add_ta_autr
61# 1.5.1 had 5:3:3
62# 1.5.2 had 5:5:3
63# 1.5.3 had 5:6:3
64# 1.5.4 had 5:7:3
65# 1.5.5 had 5:8:3
66# 1.5.6 had 5:9:3
67# 1.5.7 had 5:10:3
68# 1.5.8 had 6:0:4 # adds ub_ctx_set_stub
69# 1.5.9 had 6:1:4
70# 1.5.10 had 6:2:4
71# 1.6.0 had 6:3:4
72# 1.6.1 had 7:0:5 # ub_callback_t typedef renamed to ub_callback_type
73# 1.6.2 had 7:1:5
74# 1.6.3 had 7:2:5
75# 1.6.4 had 7:3:5
76# 1.6.5 had 7:4:5
77# 1.6.6 had 7:5:5
78# 1.6.7 had 7:6:5
79# 1.6.8 had 7:7:5
80# 1.7.0 had 7:8:5
81# 1.7.1 had 7:9:5
82# 1.7.2 had 7:10:5
83# 1.7.3 had 7:11:5
84# 1.8.0 had 8:0:0 # changes the event callback function signature
85# 1.8.1 had 8:1:0
86
87#   Current  -- the number of the binary API that we're implementing
88#   Revision -- which iteration of the implementation of the binary
89#               API are we supplying?
90#   Age      -- How many previous binary API versions do we also
91#               support?
92#
93# If we release a new version that does not change the binary API,
94# increment Revision.
95#
96# If we release a new version that changes the binary API, but does
97# not break programs compiled against the old binary API, increment
98# Current and Age.  Set Revision to 0, since this is the first
99# implementation of the new API.
100#
101# Otherwise, we're changing the binary API and breaking backward
102# compatibility with old binaries.  Increment Current.  Set Age to 0,
103# since we're backward compatible with no previous APIs.  Set Revision
104# to 0 too.
105AC_SUBST(LIBUNBOUND_CURRENT)
106AC_SUBST(LIBUNBOUND_REVISION)
107AC_SUBST(LIBUNBOUND_AGE)
108
109CFLAGS="$CFLAGS"
110AC_AIX
111if test "$ac_cv_header_minix_config_h" = "yes"; then
112	AC_DEFINE(_NETBSD_SOURCE,1, [Enable for compile on Minix])
113fi
114
115dnl
116dnl By default set prefix to /usr/local
117dnl
118case "$prefix" in
119        NONE)
120		prefix="/usr/local"
121        ;;
122esac
123case "$exec_prefix" in
124        NONE)
125		exec_prefix="$prefix"
126        ;;
127esac
128
129# are we on MinGW?
130if uname -s 2>&1 | grep MINGW32 >/dev/null; then on_mingw="yes"
131else
132	if echo $host $target | grep mingw32 >/dev/null; then on_mingw="yes"
133	else on_mingw="no"; fi
134fi
135
136#
137# Determine configuration file
138# the eval is to evaluate shell expansion twice
139UNBOUND_SBIN_DIR=`eval echo "${sbindir}"`
140AC_SUBST(UNBOUND_SBIN_DIR)
141UNBOUND_SYSCONF_DIR=`eval echo "${sysconfdir}"`
142AC_SUBST(UNBOUND_SYSCONF_DIR)
143UNBOUND_LOCALSTATE_DIR=`eval echo "${localstatedir}"`
144AC_SUBST(UNBOUND_LOCALSTATE_DIR)
145if test $on_mingw = "no"; then
146  ub_conf_file=`eval echo "${sysconfdir}/unbound/unbound.conf"`
147else
148  ub_conf_file="C:\\Program Files\\Unbound\\service.conf"
149fi
150AC_ARG_WITH([conf_file],
151        AC_HELP_STRING([--with-conf-file=path],
152	[Pathname to the Unbound configuration file]),
153	[ub_conf_file="$withval"])
154AC_SUBST(ub_conf_file)
155ACX_ESCAPE_BACKSLASH($ub_conf_file, hdr_config)
156AC_DEFINE_UNQUOTED(CONFIGFILE, ["$hdr_config"], [Pathname to the Unbound configuration file])
157ub_conf_dir=`AS_DIRNAME(["$ub_conf_file"])`
158AC_SUBST(ub_conf_dir)
159
160# Determine run, chroot directory and pidfile locations
161AC_ARG_WITH(run-dir,
162    AC_HELP_STRING([--with-run-dir=path],
163    [set default directory to chdir to (by default dir part of cfg file)]),
164    UNBOUND_RUN_DIR="$withval",
165if test $on_mingw = no; then
166    UNBOUND_RUN_DIR=`dirname "$ub_conf_file"`
167else
168    UNBOUND_RUN_DIR=""
169fi
170)
171AC_SUBST(UNBOUND_RUN_DIR)
172ACX_ESCAPE_BACKSLASH($UNBOUND_RUN_DIR, hdr_run)
173AC_DEFINE_UNQUOTED(RUN_DIR, ["$hdr_run"], [Directory to chdir to])
174
175AC_ARG_WITH(chroot-dir,
176    AC_HELP_STRING([--with-chroot-dir=path],
177    [set default directory to chroot to (by default same as run-dir)]),
178    UNBOUND_CHROOT_DIR="$withval",
179if test $on_mingw = no; then
180    UNBOUND_CHROOT_DIR="$UNBOUND_RUN_DIR"
181else
182    UNBOUND_CHROOT_DIR=""
183fi
184)
185AC_SUBST(UNBOUND_CHROOT_DIR)
186ACX_ESCAPE_BACKSLASH($UNBOUND_CHROOT_DIR, hdr_chroot)
187AC_DEFINE_UNQUOTED(CHROOT_DIR, ["$hdr_chroot"], [Directory to chroot to])
188
189AC_ARG_WITH(share-dir,
190    AC_HELP_STRING([--with-share-dir=path],
191    [set default directory with shared data (by default same as share/unbound)]),
192    UNBOUND_SHARE_DIR="$withval",
193    UNBOUND_SHARE_DIR="$UNBOUND_RUN_DIR")
194AC_SUBST(UNBOUND_SHARE_DIR)
195AC_DEFINE_UNQUOTED(SHARE_DIR, ["$UNBOUND_SHARE_DIR"], [Shared data])
196
197AC_ARG_WITH(pidfile,
198    AC_HELP_STRING([--with-pidfile=filename],
199    [set default pathname to unbound pidfile (default run-dir/unbound.pid)]),
200    UNBOUND_PIDFILE="$withval",
201if test $on_mingw = no; then
202    UNBOUND_PIDFILE="$UNBOUND_RUN_DIR/unbound.pid"
203else
204    UNBOUND_PIDFILE=""
205fi
206)
207AC_SUBST(UNBOUND_PIDFILE)
208ACX_ESCAPE_BACKSLASH($UNBOUND_PIDFILE, hdr_pid)
209AC_DEFINE_UNQUOTED(PIDFILE, ["$hdr_pid"], [default pidfile location])
210
211AC_ARG_WITH(rootkey-file,
212    AC_HELP_STRING([--with-rootkey-file=filename],
213    [set default pathname to root key file (default run-dir/root.key). This file is read and written.]),
214    UNBOUND_ROOTKEY_FILE="$withval",
215if test $on_mingw = no; then
216    UNBOUND_ROOTKEY_FILE="$UNBOUND_RUN_DIR/root.key"
217else
218    UNBOUND_ROOTKEY_FILE="C:\\Program Files\\Unbound\\root.key"
219fi
220)
221AC_SUBST(UNBOUND_ROOTKEY_FILE)
222ACX_ESCAPE_BACKSLASH($UNBOUND_ROOTKEY_FILE, hdr_rkey)
223AC_DEFINE_UNQUOTED(ROOT_ANCHOR_FILE, ["$hdr_rkey"], [default rootkey location])
224
225AC_ARG_WITH(rootcert-file,
226    AC_HELP_STRING([--with-rootcert-file=filename],
227    [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.]),
228    UNBOUND_ROOTCERT_FILE="$withval",
229if test $on_mingw = no; then
230    UNBOUND_ROOTCERT_FILE="$UNBOUND_RUN_DIR/icannbundle.pem"
231else
232    UNBOUND_ROOTCERT_FILE="C:\\Program Files\\Unbound\\icannbundle.pem"
233fi
234)
235AC_SUBST(UNBOUND_ROOTCERT_FILE)
236ACX_ESCAPE_BACKSLASH($UNBOUND_ROOTCERT_FILE, hdr_rpem)
237AC_DEFINE_UNQUOTED(ROOT_CERT_FILE, ["$hdr_rpem"], [default rootcert location])
238
239AC_ARG_WITH(username,
240    AC_HELP_STRING([--with-username=user],
241    [set default user that unbound changes to (default user is unbound)]),
242    UNBOUND_USERNAME="$withval",
243    UNBOUND_USERNAME="unbound")
244AC_SUBST(UNBOUND_USERNAME)
245AC_DEFINE_UNQUOTED(UB_USERNAME, ["$UNBOUND_USERNAME"], [default username])
246
247AC_DEFINE(WINVER, 0x0502, [the version of the windows API enabled])
248ACX_RSRC_VERSION(wnvs)
249AC_DEFINE_UNQUOTED(RSRC_PACKAGE_VERSION, [$wnvs], [version number for resource files])
250
251# Checks for typedefs, structures, and compiler characteristics.
252AC_C_CONST
253AC_LANG_C
254# allow user to override the -g -O2 flags.
255default_cflags=no
256if test "x$CFLAGS" = "x" ; then
257ACX_CHECK_COMPILER_FLAG(g, [CFLAGS="$CFLAGS -g"])
258ACX_CHECK_COMPILER_FLAG(O2, [CFLAGS="$CFLAGS -O2"])
259default_cflags=yes
260fi
261AC_PROG_CC
262ACX_DEPFLAG
263ACX_DETERMINE_EXT_FLAGS_UNBOUND
264
265# debug mode flags warnings
266AC_ARG_ENABLE(checking, AC_HELP_STRING([--enable-checking], [Enable warnings, asserts, makefile-dependencies]))
267AC_ARG_ENABLE(debug, AC_HELP_STRING([--enable-debug], [same as enable-checking]))
268if test "$enable_debug" = "yes"; then debug_enabled="$enable_debug";
269else debug_enabled="$enable_checking"; fi
270AC_SUBST(debug_enabled)
271case "$debug_enabled" in
272        yes)
273		ACX_CHECK_COMPILER_FLAG(W, [CFLAGS="$CFLAGS -W"])
274		ACX_CHECK_COMPILER_FLAG(Wall, [CFLAGS="$CFLAGS -Wall"])
275		ACX_CHECK_COMPILER_FLAG(Wextra, [CFLAGS="$CFLAGS -Wextra"])
276		ACX_CHECK_COMPILER_FLAG(Wdeclaration-after-statement, [CFLAGS="$CFLAGS -Wdeclaration-after-statement"])
277		AC_DEFINE([UNBOUND_DEBUG], [], [define this to enable debug checks.])
278		;;
279	no|*)
280		# nothing to do.
281		;;
282esac
283if test "$default_cflags" = "yes"; then
284	# only when CFLAGS was "" at the start, if the users wants to
285	# override we shouldn't add default cflags, because they wouldn't
286	# be able to turn off these options and set the CFLAGS wanted.
287	ACX_CHECK_FLTO
288	ACX_CHECK_PIE
289	ACX_CHECK_RELRO_NOW
290fi
291
292AC_C_INLINE
293ACX_CHECK_FORMAT_ATTRIBUTE
294ACX_CHECK_UNUSED_ATTRIBUTE
295
296AC_DEFUN([CHECK_WEAK_ATTRIBUTE],
297[AC_REQUIRE([AC_PROG_CC])
298AC_MSG_CHECKING(whether the C compiler (${CC-cc}) accepts the "weak" attribute)
299AC_CACHE_VAL(ac_cv_c_weak_attribute,
300[ac_cv_c_weak_attribute=no
301AC_TRY_COMPILE(
302[ #include <stdio.h>
303__attribute__((weak)) void f(int x) { printf("%d", x); }
304], [
305   f(1);
306],
307[ac_cv_c_weak_attribute="yes"],
308[ac_cv_c_weak_attribute="no"])
309])
310
311AC_MSG_RESULT($ac_cv_c_weak_attribute)
312if test $ac_cv_c_weak_attribute = yes; then
313  AC_DEFINE(HAVE_ATTR_WEAK, 1, [Whether the C compiler accepts the "weak" attribute])
314  AC_DEFINE(ATTR_WEAK, [__attribute__((weak))], [apply the weak attribute to a symbol])
315fi
316])dnl End of CHECK_WEAK_ATTRIBUTE
317
318CHECK_WEAK_ATTRIBUTE
319
320AC_DEFUN([CHECK_NORETURN_ATTRIBUTE],
321[AC_REQUIRE([AC_PROG_CC])
322AC_MSG_CHECKING(whether the C compiler (${CC-cc}) accepts the "noreturn" attribute)
323AC_CACHE_VAL(ac_cv_c_noreturn_attribute,
324[ac_cv_c_noreturn_attribute=no
325AC_TRY_COMPILE(
326[ #include <stdio.h>
327__attribute__((noreturn)) void f(int x) { printf("%d", x); }
328], [
329   f(1);
330],
331[ac_cv_c_noreturn_attribute="yes"],
332[ac_cv_c_noreturn_attribute="no"])
333])
334
335AC_MSG_RESULT($ac_cv_c_noreturn_attribute)
336if test $ac_cv_c_noreturn_attribute = yes; then
337  AC_DEFINE(HAVE_ATTR_NORETURN, 1, [Whether the C compiler accepts the "noreturn" attribute])
338  AC_DEFINE(ATTR_NORETURN, [__attribute__((__noreturn__))], [apply the noreturn attribute to a function that exits the program])
339fi
340])dnl End of CHECK_NORETURN_ATTRIBUTE
341
342CHECK_NORETURN_ATTRIBUTE
343
344if test "$srcdir" != "."; then
345	CPPFLAGS="$CPPFLAGS -I$srcdir"
346fi
347
348AC_DEFUN([ACX_YYLEX_DESTROY], [
349	AC_MSG_CHECKING([for yylex_destroy])
350	if echo %% | $LEX -t 2>&1 | grep yylex_destroy >/dev/null 2>&1; then
351		AC_DEFINE(LEX_HAS_YYLEX_DESTROY, 1, [if lex has yylex_destroy])
352		AC_MSG_RESULT(yes)
353	else AC_MSG_RESULT(no);
354		LEX=":"
355	fi
356])
357
358AC_DEFUN([ACX_YYLEX_OPTION], [
359	AC_MSG_CHECKING([for lex %option])
360	if cat <<EOF | $LEX -t 2>&1 | grep yy_delete_buffer >/dev/null 2>&1; then
361%option nounput
362%%
363EOF
364		AC_MSG_RESULT(yes)
365	else AC_MSG_RESULT(no);
366		LEX=":"
367	fi
368])
369
370AC_PROG_LEX
371if test "$LEX" != "" -a "$LEX" != ":"; then
372ACX_YYLEX_DESTROY
373fi
374if test "$LEX" != "" -a "$LEX" != ":"; then
375ACX_YYLEX_OPTION
376fi
377AC_PROG_YACC
378AC_CHECK_PROG(doxygen, doxygen, doxygen)
379AC_CHECK_TOOL(STRIP, strip)
380ACX_LIBTOOL_C_ONLY
381
382# Checks for header files.
383AC_CHECK_HEADERS([stdarg.h stdbool.h netinet/in.h netinet/tcp.h sys/param.h sys/socket.h sys/un.h sys/uio.h sys/resource.h arpa/inet.h syslog.h netdb.h sys/wait.h pwd.h glob.h grp.h login_cap.h winsock2.h ws2tcpip.h endian.h sys/endian.h libkern/OSByteOrder.h sys/ipc.h sys/shm.h],,, [AC_INCLUDES_DEFAULT])
384
385# check for types.
386# Using own tests for int64* because autoconf builtin only give 32bit.
387AC_CHECK_TYPE(int8_t, signed char)
388AC_CHECK_TYPE(int16_t, short)
389AC_CHECK_TYPE(int32_t, int)
390AC_CHECK_TYPE(int64_t, long long)
391AC_CHECK_TYPE(uint8_t, unsigned char)
392AC_CHECK_TYPE(uint16_t, unsigned short)
393AC_CHECK_TYPE(uint32_t, unsigned int)
394AC_CHECK_TYPE(uint64_t, unsigned long long)
395AC_TYPE_SIZE_T
396AC_CHECK_TYPE(ssize_t, int)
397AC_TYPE_UID_T
398AC_TYPE_PID_T
399AC_TYPE_OFF_T
400ACX_TYPE_U_CHAR
401ACX_TYPE_RLIM_T
402ACX_TYPE_SOCKLEN_T
403ACX_TYPE_IN_ADDR_T
404ACX_TYPE_IN_PORT_T
405ACX_CHECK_MEMCMP_SIGNED
406
407AC_CHECK_SIZEOF(time_t,,[
408AC_INCLUDES_DEFAULT
409#ifdef TIME_WITH_SYS_TIME
410# include <sys/time.h>
411# include <time.h>
412#else
413# ifdef HAVE_SYS_TIME_H
414#  include <sys/time.h>
415# else
416#  include <time.h>
417# endif
418#endif
419])
420
421# add option to disable the evil rpath
422ACX_ARG_RPATH
423AC_SUBST(RUNTIME_PATH)
424
425# check to see if libraries are needed for these functions.
426AC_SEARCH_LIBS([inet_pton], [nsl])
427AC_SEARCH_LIBS([socket], [socket])
428
429# check wether strptime also works
430AC_DEFUN([AC_CHECK_STRPTIME_WORKS],
431[AC_REQUIRE([AC_PROG_CC])
432AC_MSG_CHECKING(whether strptime works)
433if test c${cross_compiling} = cno; then
434AC_RUN_IFELSE([AC_LANG_SOURCE([[
435#define _XOPEN_SOURCE 600
436#include <time.h>
437int main(void) { struct tm tm; char *res;
438res = 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);
439if (!res) return 2;
440res = strptime("20070207111842", "%Y%m%d%H%M%S", &tm);
441if (!res) return 1; return 0; }
442]])] , [eval "ac_cv_c_strptime_works=yes"], [eval "ac_cv_c_strptime_works=no"])
443else
444eval "ac_cv_c_strptime_works=maybe"
445fi
446AC_MSG_RESULT($ac_cv_c_strptime_works)
447if test $ac_cv_c_strptime_works = no; then
448AC_LIBOBJ(strptime)
449else
450AC_DEFINE_UNQUOTED([STRPTIME_WORKS], 1, [use default strptime.])
451fi
452])dnl
453
454# check some functions of the OS before linking libs (while still runnable).
455AC_FUNC_CHOWN
456AC_FUNC_FORK
457AC_TYPE_SIGNAL
458AC_FUNC_FSEEKO
459ACX_SYS_LARGEFILE
460ACX_CHECK_NONBLOCKING_BROKEN
461ACX_MKDIR_ONE_ARG
462AC_CHECK_FUNCS([strptime],[AC_CHECK_STRPTIME_WORKS],[AC_LIBOBJ([strptime])])
463
464# check if we can use SO_REUSEPORT
465if echo "$host" | grep -i -e linux -e dragonfly >/dev/null; then
466	AC_DEFINE(REUSEPORT_DEFAULT, 1, [if REUSEPORT is enabled by default])
467else
468	AC_DEFINE(REUSEPORT_DEFAULT, 0, [if REUSEPORT is enabled by default])
469fi
470
471# set memory allocation checking if requested
472AC_ARG_ENABLE(alloc-checks, AC_HELP_STRING([--enable-alloc-checks],
473	[ enable to memory allocation statistics, for debug purposes ]),
474	, )
475AC_ARG_ENABLE(alloc-lite, AC_HELP_STRING([--enable-alloc-lite],
476	[ enable for lightweight alloc assertions, for debug purposes ]),
477	, )
478AC_ARG_ENABLE(alloc-nonregional, AC_HELP_STRING([--enable-alloc-nonregional],
479	[ enable nonregional allocs, slow but exposes regional allocations to other memory purifiers, for debug purposes ]),
480	, )
481if test x_$enable_alloc_nonregional = x_yes; then
482	AC_DEFINE(UNBOUND_ALLOC_NONREGIONAL, 1, [use malloc not regions, for debug use])
483fi
484if test x_$enable_alloc_checks = x_yes; then
485	AC_DEFINE(UNBOUND_ALLOC_STATS, 1, [use statistics for allocs and frees, for debug use])
486else
487	if test x_$enable_alloc_lite = x_yes; then
488		AC_DEFINE(UNBOUND_ALLOC_LITE, 1, [use to enable lightweight alloc assertions, for debug use])
489	else
490		ACX_FUNC_MALLOC([unbound])
491	fi
492fi
493
494# check windows threads (we use them, not pthreads, on windows).
495if test "$on_mingw" = "yes"; then
496# check windows threads
497	AC_CHECK_HEADERS([windows.h],,, [AC_INCLUDES_DEFAULT])
498	AC_MSG_CHECKING([for CreateThread])
499	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
500#ifdef HAVE_WINDOWS_H
501#include <windows.h>
502#endif
503], [
504	HANDLE t = CreateThread(NULL, 0, NULL, NULL, 0, NULL);
505])],
506	AC_MSG_RESULT(yes)
507	AC_DEFINE(HAVE_WINDOWS_THREADS, 1, [Using Windows threads])
508,
509	AC_MSG_RESULT(no)
510)
511
512else
513# not on mingw, check thread libraries.
514
515# check for thread library.
516# check this first, so that the pthread lib does not get linked in via
517# libssl or libpython, and thus distorts the tests, and we end up using
518# the non-threadsafe C libraries.
519AC_ARG_WITH(pthreads, AC_HELP_STRING([--with-pthreads],
520 [use pthreads library, or --without-pthreads to disable threading support.]),
521 [ ],[ withval="yes" ])
522ub_have_pthreads=no
523if test x_$withval != x_no; then
524	AX_PTHREAD([
525		AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.])
526		if test -n "$PTHREAD_LIBS"; then
527		  LIBS="$PTHREAD_LIBS $LIBS"
528		fi
529		CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
530		CC="$PTHREAD_CC"
531		ub_have_pthreads=yes
532		AC_CHECK_TYPES([pthread_spinlock_t, pthread_rwlock_t],,,[#include <pthread.h>])
533
534		if echo "$CFLAGS" | $GREP -e "-pthread" >/dev/null; then
535		AC_MSG_CHECKING([if -pthread unused during linking])
536		# catch clang warning 'argument unused during compilation'
537		AC_LANG_CONFTEST([AC_LANG_SOURCE(AC_INCLUDES_DEFAULT
538[[
539int main(void) {return 0;}
540]])])
541		pthread_unused="yes"
542		# first compile
543		echo "$CC $CFLAGS -c conftest.c -o conftest.o" >&AS_MESSAGE_LOG_FD
544		$CC $CFLAGS -c conftest.c -o conftest.o 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD
545		if test $? = 0; then
546			# then link
547			echo "$CC $CFLAGS -Werror $LDFLAGS $LIBS -o conftest contest.o" >&AS_MESSAGE_LOG_FD
548			$CC $CFLAGS -Werror $LDFLAGS $LIBS -o conftest conftest.o 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD
549			if test $? -ne 0; then
550				AC_MSG_RESULT(yes)
551				CFLAGS=`echo "$CFLAGS" | sed -e 's/-pthread//'`
552				PTHREAD_CFLAGS_ONLY="-pthread"
553				AC_SUBST(PTHREAD_CFLAGS_ONLY)
554			else
555				AC_MSG_RESULT(no)
556			fi
557		else
558			AC_MSG_RESULT(no)
559		fi # endif cc successful
560		rm -f conftest conftest.c conftest.o
561		fi # endif -pthread in CFLAGS
562
563		])
564fi
565
566# check solaris thread library
567AC_ARG_WITH(solaris-threads, AC_HELP_STRING([--with-solaris-threads],
568	[use solaris native thread library.]), [ ],[ withval="no" ])
569ub_have_sol_threads=no
570if test x_$withval != x_no; then
571	if test x_$ub_have_pthreads != x_no; then
572	    AC_WARN([Have pthreads already, ignoring --with-solaris-threads])
573	else
574	AC_SEARCH_LIBS(thr_create, [thread],
575	[
576    		AC_DEFINE(HAVE_SOLARIS_THREADS, 1, [Using Solaris threads])
577
578		ACX_CHECK_COMPILER_FLAG(mt, [CFLAGS="$CFLAGS -mt"],
579			[CFLAGS="$CFLAGS -D_REENTRANT"])
580		ub_have_sol_threads=yes
581	] , [
582		AC_ERROR([no solaris threads found.])
583	])
584	fi
585fi
586
587fi # end of non-mingw check of thread libraries
588
589# Check for PyUnbound
590AC_ARG_WITH(pyunbound,
591   AC_HELP_STRING([--with-pyunbound],
592   [build PyUnbound, or --without-pyunbound to skip it. (default=no)]),
593   [], [ withval="no" ])
594
595ub_test_python=no
596ub_with_pyunbound=no
597if test x_$withval != x_no; then
598   ub_with_pyunbound=yes
599   ub_test_python=yes
600fi
601
602# Check for Python module
603AC_ARG_WITH(pythonmodule,
604   AC_HELP_STRING([--with-pythonmodule],
605   [build Python module, or --without-pythonmodule to disable script engine. (default=no)]),
606   [], [ withval="no" ])
607
608ub_with_pythonmod=no
609if test x_$withval != x_no; then
610   ub_with_pythonmod=yes
611   ub_test_python=yes
612fi
613
614# Check for Python & SWIG only on PyUnbound or PyModule
615if test x_$ub_test_python != x_no; then
616
617   # Check for Python
618   ub_have_python=no
619   ac_save_LIBS="$LIBS" dnl otherwise AC_PYTHON_DEVEL thrashes $LIBS
620   AC_PYTHON_DEVEL
621   if test ! -z "$PYTHON_VERSION"; then
622	if test `$PYTHON -c "print('$PYTHON_VERSION' >= '2.4.0')"` = "False"; then
623		AC_ERROR([Python version >= 2.4.0 is required])
624	fi
625
626      [PY_MAJOR_VERSION="`$PYTHON -c \"import sys; print(sys.version_info[0])\"`"]
627      AC_SUBST(PY_MAJOR_VERSION)
628      # Have Python
629      AC_DEFINE(HAVE_PYTHON,1,[Define if you have Python libraries and header files.])
630      if test -n "$LIBS"; then
631        LIBS="$PYTHON_LDFLAGS $LIBS"
632      else
633        LIBS="$PYTHON_LDFLAGS"
634      fi
635      if test -n "$CPPFLAGS"; then
636        CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
637      else
638        CPPFLAGS="$PYTHON_CPPFLAGS"
639      fi
640      ub_have_python=yes
641      PKG_PROG_PKG_CONFIG
642      PKG_CHECK_EXISTS(["python${PY_MAJOR_VERSION}"],
643                       [PC_PY_DEPENDENCY="python${PY_MAJOR_VERSION}"],
644                       [PC_PY_DEPENDENCY="python"])
645      AC_SUBST(PC_PY_DEPENDENCY)
646
647      # Check for SWIG
648      ub_have_swig=no
649      AC_ARG_ENABLE(swig-version-check, AC_HELP_STRING([--disable-swig-version-check], [Disable swig version check to build python modules with older swig even though that is unreliable]))
650      if test "$enable_swig_version_check" = "yes"; then
651      	AC_PROG_SWIG(2.0.1)
652      else
653      	AC_PROG_SWIG
654      fi
655      AC_MSG_CHECKING(SWIG)
656      if test ! -x "$SWIG"; then
657         AC_ERROR([failed to find swig tool, install it, or do not build Python module and PyUnbound])
658      else
659         AC_DEFINE(HAVE_SWIG, 1, [Define if you have Swig libraries and header files.])
660         AC_SUBST(swig, "$SWIG")
661         AC_MSG_RESULT(present)
662
663         # If have Python & SWIG
664         # Declare PythonMod
665         if test x_$ub_with_pythonmod != x_no; then
666            AC_DEFINE(WITH_PYTHONMODULE, 1, [Define if you want Python module.])
667            WITH_PYTHONMODULE=yes
668            AC_SUBST(WITH_PYTHONMODULE)
669	    PYTHONMOD_OBJ="pythonmod.lo pythonmod_utils.lo"
670	    AC_SUBST(PYTHONMOD_OBJ)
671	    PYTHONMOD_HEADER='$(srcdir)/pythonmod/pythonmod.h'
672	    AC_SUBST(PYTHONMOD_HEADER)
673	    PYTHONMOD_INSTALL=pythonmod-install
674	    AC_SUBST(PYTHONMOD_INSTALL)
675	    PYTHONMOD_UNINSTALL=pythonmod-uninstall
676	    AC_SUBST(PYTHONMOD_UNINSTALL)
677         fi
678
679         # Declare PyUnbound
680         if test x_$ub_with_pyunbound != x_no; then
681            AC_DEFINE(WITH_PYUNBOUND, 1, [Define if you want PyUnbound.])
682            WITH_PYUNBOUND=yes
683            AC_SUBST(WITH_PYUNBOUND)
684	    PYUNBOUND_OBJ="libunbound_wrap.lo"
685	    AC_SUBST(PYUNBOUND_OBJ)
686	    PYUNBOUND_TARGET="_unbound.la"
687	    AC_SUBST(PYUNBOUND_TARGET)
688	    PYUNBOUND_INSTALL=pyunbound-install
689	    AC_SUBST(PYUNBOUND_INSTALL)
690	    PYUNBOUND_UNINSTALL=pyunbound-uninstall
691	    AC_SUBST(PYUNBOUND_UNINSTALL)
692         fi
693      fi
694   else
695      AC_MSG_RESULT([*** Python libraries not found, won't build PythonMod or PyUnbound ***])
696      ub_with_pyunbound=no
697      ub_with_pythonmod=no
698   fi
699fi
700
701if test "`uname`" = "NetBSD"; then
702	NETBSD_LINTFLAGS='"-D__RENAME(x)=" -D_NETINET_IN_H_'
703	AC_SUBST(NETBSD_LINTFLAGS)
704fi
705CONFIG_DATE=`date +%Y%m%d`
706AC_SUBST(CONFIG_DATE)
707
708# Checks for libraries.
709
710# libnss
711USE_NSS="no"
712AC_ARG_WITH([nss], AC_HELP_STRING([--with-nss=path],
713	[use libnss instead of openssl, installed at path.]),
714	[
715	USE_NSS="yes"
716	AC_DEFINE(HAVE_NSS, 1, [Use libnss for crypto])
717	if test "$withval" != "" -a "$withval" != "yes"; then
718		CPPFLAGS="$CPPFLAGS -I$withval/include/nss3"
719		LDFLAGS="$LDFLAGS -L$withval/lib"
720		ACX_RUNTIME_PATH_ADD([$withval/lib])
721		CPPFLAGS="-I$withval/include/nspr4 $CPPFLAGS"
722	else
723		CPPFLAGS="$CPPFLAGS -I/usr/include/nss3"
724		CPPFLAGS="-I/usr/include/nspr4 $CPPFLAGS"
725	fi
726        LIBS="$LIBS -lnss3 -lnspr4"
727	SSLLIB=""
728	]
729)
730
731# libnettle
732USE_NETTLE="no"
733AC_ARG_WITH([nettle], AC_HELP_STRING([--with-nettle=path],
734	[use libnettle as crypto library, installed at path.]),
735	[
736	USE_NETTLE="yes"
737	AC_DEFINE(HAVE_NETTLE, 1, [Use libnettle for crypto])
738	AC_CHECK_HEADERS([nettle/dsa-compat.h],,, [AC_INCLUDES_DEFAULT])
739	if test "$withval" != "" -a "$withval" != "yes"; then
740		CPPFLAGS="$CPPFLAGS -I$withval/include/nettle"
741		LDFLAGS="$LDFLAGS -L$withval/lib"
742		ACX_RUNTIME_PATH_ADD([$withval/lib])
743	else
744		CPPFLAGS="$CPPFLAGS -I/usr/include/nettle"
745	fi
746        LIBS="$LIBS -lhogweed -lnettle -lgmp"
747	SSLLIB=""
748	]
749)
750
751# openssl
752if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
753ACX_WITH_SSL
754ACX_LIB_SSL
755SSLLIB="-lssl"
756
757# check if -lcrypt32 is needed because CAPIENG needs that. (on windows)
758BAKLIBS="$LIBS"
759LIBS="-lssl $LIBS"
760AC_MSG_CHECKING([if libssl needs -lcrypt32])
761AC_TRY_LINK_FUNC([HMAC_Update], [
762	AC_MSG_RESULT([no])
763	LIBS="$BAKLIBS"
764], [
765	AC_MSG_RESULT([yes])
766	LIBS="$BAKLIBS"
767	LIBS="$LIBS -lcrypt32"
768])
769
770AC_MSG_CHECKING([for LibreSSL])
771if grep VERSION_TEXT $ssldir/include/openssl/opensslv.h | grep "LibreSSL" >/dev/null; then
772	AC_MSG_RESULT([yes])
773	AC_DEFINE([HAVE_LIBRESSL], [1], [Define if we have LibreSSL])
774	# libressl provides these compat functions, but they may also be
775	# declared by the OS in libc.  See if they have been declared.
776	AC_CHECK_DECLS([strlcpy,strlcat,arc4random,arc4random_uniform,reallocarray])
777else
778	AC_MSG_RESULT([no])
779fi
780AC_CHECK_HEADERS([openssl/conf.h openssl/engine.h openssl/bn.h openssl/dh.h openssl/dsa.h openssl/rsa.h],,, [AC_INCLUDES_DEFAULT])
781AC_CHECK_FUNCS([OPENSSL_config EVP_sha1 EVP_sha256 EVP_sha512 FIPS_mode EVP_MD_CTX_new OpenSSL_add_all_digests OPENSSL_init_crypto EVP_cleanup ERR_load_crypto_strings CRYPTO_cleanup_all_ex_data ERR_free_strings RAND_cleanup DSA_SIG_set0 EVP_dss1 EVP_DigestVerify])
782
783# these check_funcs need -lssl
784BAKLIBS="$LIBS"
785LIBS="-lssl $LIBS"
786AC_CHECK_FUNCS([OPENSSL_init_ssl SSL_CTX_set_security_level SSL_set1_host SSL_get0_peername])
787LIBS="$BAKLIBS"
788
789AC_CHECK_DECLS([SSL_COMP_get_compression_methods,sk_SSL_COMP_pop_free,SSL_CTX_set_ecdh_auto], [], [], [
790AC_INCLUDES_DEFAULT
791#ifdef HAVE_OPENSSL_ERR_H
792#include <openssl/err.h>
793#endif
794
795#ifdef HAVE_OPENSSL_RAND_H
796#include <openssl/rand.h>
797#endif
798
799#ifdef HAVE_OPENSSL_CONF_H
800#include <openssl/conf.h>
801#endif
802
803#ifdef HAVE_OPENSSL_ENGINE_H
804#include <openssl/engine.h>
805#endif
806#include <openssl/ssl.h>
807#include <openssl/evp.h>
808])
809fi
810AC_SUBST(SSLLIB)
811
812
813AC_ARG_ENABLE(sha1, AC_HELP_STRING([--disable-sha1], [Disable SHA1 RRSIG support, does not disable nsec3 support]))
814case "$enable_sha1" in
815	no)
816	;;
817	yes|*)
818	AC_DEFINE([USE_SHA1], [1], [Define this to enable SHA1 support.])
819	;;
820esac
821
822
823AC_ARG_ENABLE(sha2, AC_HELP_STRING([--disable-sha2], [Disable SHA256 and SHA512 RRSIG support]))
824case "$enable_sha2" in
825	no)
826	;;
827	yes|*)
828	AC_DEFINE([USE_SHA2], [1], [Define this to enable SHA256 and SHA512 support.])
829	;;
830esac
831
832AC_ARG_ENABLE(subnet, AC_HELP_STRING([--enable-subnet], [Enable client subnet]))
833case "$enable_subnet" in
834	yes)
835	AC_DEFINE([CLIENT_SUBNET], [1], [Define this to enable client subnet option.])
836	SUBNET_OBJ="edns-subnet.lo subnetmod.lo addrtree.lo subnet-whitelist.lo"
837	AC_SUBST(SUBNET_OBJ)
838	SUBNET_HEADER='$(srcdir)/edns-subnet/subnetmod.h $(srcdir)/edns-subnet/edns-subnet.h $(srcdir)/edns-subnet/subnet-whitelist.h $(srcdir)/edns-subnet/addrtree.h'
839	AC_SUBST(SUBNET_HEADER)
840	;;
841	no|*)
842	;;
843esac
844
845# check wether gost also works
846AC_DEFUN([AC_CHECK_GOST_WORKS],
847[AC_REQUIRE([AC_PROG_CC])
848AC_MSG_CHECKING([if GOST works])
849if test c${cross_compiling} = cno; then
850BAKCFLAGS="$CFLAGS"
851if test -n "$ssldir"; then
852	CFLAGS="$CFLAGS -Wl,-rpath,$ssldir/lib"
853fi
854AC_RUN_IFELSE([AC_LANG_SOURCE([[
855#include <string.h>
856#include <openssl/ssl.h>
857#include <openssl/evp.h>
858#include <openssl/engine.h>
859#include <openssl/conf.h>
860/* routine to load gost (from sldns) */
861int load_gost_id(void)
862{
863	static int gost_id = 0;
864	const EVP_PKEY_ASN1_METHOD* meth;
865	ENGINE* e;
866
867	if(gost_id) return gost_id;
868
869	/* see if configuration loaded gost implementation from other engine*/
870	meth = EVP_PKEY_asn1_find_str(NULL, "gost2001", -1);
871	if(meth) {
872		EVP_PKEY_asn1_get0_info(&gost_id, NULL, NULL, NULL, NULL, meth);
873		return gost_id;
874	}
875
876	/* see if engine can be loaded already */
877	e = ENGINE_by_id("gost");
878	if(!e) {
879		/* load it ourself, in case statically linked */
880		ENGINE_load_builtin_engines();
881		ENGINE_load_dynamic();
882		e = ENGINE_by_id("gost");
883	}
884	if(!e) {
885		/* no gost engine in openssl */
886		return 0;
887	}
888	if(!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
889		ENGINE_finish(e);
890		ENGINE_free(e);
891		return 0;
892	}
893
894	meth = EVP_PKEY_asn1_find_str(&e, "gost2001", -1);
895	if(!meth) {
896		/* algo not found */
897		ENGINE_finish(e);
898		ENGINE_free(e);
899		return 0;
900	}
901	EVP_PKEY_asn1_get0_info(&gost_id, NULL, NULL, NULL, NULL, meth);
902	return gost_id;
903}
904int main(void) {
905	EVP_MD_CTX* ctx;
906	const EVP_MD* md;
907	unsigned char digest[64]; /* its a 256-bit digest, so uses 32 bytes */
908	const char* str = "Hello world";
909	const unsigned char check[] = {
910		0x40 , 0xed , 0xf8 , 0x56 , 0x5a , 0xc5 , 0x36 , 0xe1 ,
911		0x33 , 0x7c , 0x7e , 0x87 , 0x62 , 0x1c , 0x42 , 0xe0 ,
912		0x17 , 0x1b , 0x5e , 0xce , 0xa8 , 0x46 , 0x65 , 0x4d ,
913		0x8d , 0x3e , 0x22 , 0x9b , 0xe1 , 0x30 , 0x19 , 0x9d
914	};
915	OPENSSL_config(NULL);
916	(void)load_gost_id();
917	md = EVP_get_digestbyname("md_gost94");
918	if(!md) return 1;
919	memset(digest, 0, sizeof(digest));
920	ctx = EVP_MD_CTX_create();
921	if(!ctx) return 2;
922	if(!EVP_DigestInit_ex(ctx, md, NULL)) return 3;
923	if(!EVP_DigestUpdate(ctx, str, 10)) return 4;
924	if(!EVP_DigestFinal_ex(ctx, digest, NULL)) return 5;
925	/* uncomment to see the hash calculated.
926		{int i;
927		for(i=0; i<32; i++)
928			printf(" %2.2x", (int)digest[i]);
929		printf("\n");}
930	*/
931	if(memcmp(digest, check, sizeof(check)) != 0)
932		return 6;
933	return 0;
934}
935]])] , [eval "ac_cv_c_gost_works=yes"], [eval "ac_cv_c_gost_works=no"])
936CFLAGS="$BAKCFLAGS"
937else
938eval "ac_cv_c_gost_works=maybe"
939fi
940AC_MSG_RESULT($ac_cv_c_gost_works)
941])dnl
942
943AC_ARG_ENABLE(gost, AC_HELP_STRING([--disable-gost], [Disable GOST support]))
944use_gost="no"
945if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
946case "$enable_gost" in
947	no)
948	;;
949	*)
950	AC_CHECK_FUNC(EVP_PKEY_set_type_str, [:],[AC_MSG_ERROR([OpenSSL 1.0.0 is needed for GOST support])])
951	AC_CHECK_FUNC(EC_KEY_new, [], [AC_MSG_ERROR([OpenSSL does not support ECC, needed for GOST support])])
952	AC_CHECK_GOST_WORKS
953	if test "$ac_cv_c_gost_works" != no; then
954		use_gost="yes"
955		AC_DEFINE([USE_GOST], [1], [Define this to enable GOST support.])
956	fi
957	;;
958esac
959fi dnl !USE_NSS && !USE_NETTLE
960
961AC_ARG_ENABLE(ecdsa, AC_HELP_STRING([--disable-ecdsa], [Disable ECDSA support]))
962use_ecdsa="no"
963case "$enable_ecdsa" in
964    no)
965      ;;
966    *)
967      if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
968	      AC_CHECK_FUNC(ECDSA_sign, [], [AC_MSG_ERROR([OpenSSL does not support ECDSA: please upgrade or rerun with --disable-ecdsa])])
969	      AC_CHECK_FUNC(SHA384_Init, [], [AC_MSG_ERROR([OpenSSL does not support SHA384: please upgrade or rerun with --disable-ecdsa])])
970	      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
971#include <openssl/evp.h>
972	      ])
973	      # see if OPENSSL 1.0.0 or later (has EVP MD and Verify independency)
974	      AC_MSG_CHECKING([if openssl supports SHA2 and ECDSA with EVP])
975	      if grep OPENSSL_VERSION_TEXT $ssldir/include/openssl/opensslv.h | grep "OpenSSL" >/dev/null; then
976		if grep OPENSSL_VERSION_NUMBER $ssldir/include/openssl/opensslv.h | grep 0x0 >/dev/null; then
977		  AC_MSG_RESULT([no])
978		  AC_DEFINE_UNQUOTED([USE_ECDSA_EVP_WORKAROUND], [1], [Define this to enable an EVP workaround for older openssl])
979		else
980		  AC_MSG_RESULT([yes])
981		fi
982	      else
983		# not OpenSSL, thus likely LibreSSL, which supports it
984		AC_MSG_RESULT([yes])
985	      fi
986      fi
987      # we now know we have ECDSA and the required curves.
988      AC_DEFINE_UNQUOTED([USE_ECDSA], [1], [Define this to enable ECDSA support.])
989      use_ecdsa="yes"
990      ;;
991esac
992
993AC_ARG_ENABLE(dsa, AC_HELP_STRING([--disable-dsa], [Disable DSA support]))
994use_dsa="no"
995case "$enable_dsa" in
996    no)
997      ;;
998    *)
999      # detect if DSA is supported, and turn it off if not.
1000      if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
1001      AC_CHECK_FUNC(DSA_SIG_new, [
1002      AC_CHECK_TYPE(DSA_SIG*, [
1003      AC_DEFINE_UNQUOTED([USE_DSA], [1], [Define this to enable DSA support.])
1004      ], [if test "x$enable_dsa" = "xyes"; then AC_MSG_ERROR([OpenSSL does not support DSA and you used --enable-dsa.])
1005               fi ], [
1006AC_INCLUDES_DEFAULT
1007#ifdef HAVE_OPENSSL_ERR_H
1008#include <openssl/err.h>
1009#endif
1010
1011#ifdef HAVE_OPENSSL_RAND_H
1012#include <openssl/rand.h>
1013#endif
1014
1015#ifdef HAVE_OPENSSL_CONF_H
1016#include <openssl/conf.h>
1017#endif
1018
1019#ifdef HAVE_OPENSSL_ENGINE_H
1020#include <openssl/engine.h>
1021#endif
1022      ])
1023      ], [if test "x$enable_dsa" = "xyes"; then AC_MSG_ERROR([OpenSSL does not support DSA and you used --enable-dsa.])
1024               fi ])
1025      else
1026      AC_DEFINE_UNQUOTED([USE_DSA], [1], [Define this to enable DSA support.])
1027      fi
1028      ;;
1029esac
1030
1031AC_ARG_ENABLE(ed25519, AC_HELP_STRING([--disable-ed25519], [Disable ED25519 support]))
1032use_ed25519="no"
1033case "$enable_ed25519" in
1034    no)
1035      ;;
1036    *)
1037      if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
1038	      AC_CHECK_DECLS([NID_ED25519], [
1039      		use_ed25519="yes"
1040	      ], [ if test "x$enable_ed25519" = "xyes"; then AC_MSG_ERROR([OpenSSL does not support ED25519 and you used --enable-ed25519.])
1041	      	fi ], [AC_INCLUDES_DEFAULT
1042#include <openssl/evp.h>
1043	      ])
1044      fi
1045      if test $USE_NETTLE = "yes"; then
1046		AC_CHECK_HEADERS([nettle/eddsa.h], use_ed25519="yes",, [AC_INCLUDES_DEFAULT])
1047      fi
1048      if test $use_ed25519 = "yes"; then
1049      		AC_DEFINE_UNQUOTED([USE_ED25519], [1], [Define this to enable ED25519 support.])
1050      fi
1051      ;;
1052esac
1053
1054AC_ARG_ENABLE(ed448, AC_HELP_STRING([--disable-ed448], [Disable ED448 support]))
1055use_ed448="no"
1056case "$enable_ed448" in
1057    no)
1058      ;;
1059    *)
1060      if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
1061	      AC_CHECK_DECLS([NID_ED448], [
1062      		use_ed448="yes"
1063	      ], [ if test "x$enable_ed448" = "xyes"; then AC_MSG_ERROR([OpenSSL does not support ED448 and you used --enable-ed448.])
1064	      	fi ], [AC_INCLUDES_DEFAULT
1065#include <openssl/evp.h>
1066	      ])
1067      fi
1068      if test $use_ed448 = "yes"; then
1069      		AC_DEFINE_UNQUOTED([USE_ED448], [1], [Define this to enable ED448 support.])
1070      fi
1071      ;;
1072esac
1073
1074AC_ARG_ENABLE(event-api, AC_HELP_STRING([--enable-event-api], [Enable (experimental) pluggable event base libunbound API installed to unbound-event.h]))
1075case "$enable_event_api" in
1076    yes)
1077      AC_SUBST(UNBOUND_EVENT_INSTALL, [unbound-event-install])
1078      AC_SUBST(UNBOUND_EVENT_UNINSTALL, [unbound-event-uninstall])
1079      ;;
1080    *)
1081      ;;
1082esac
1083
1084AC_ARG_ENABLE(tfo-client, AC_HELP_STRING([--enable-tfo-client], [Enable TCP Fast Open for client mode]))
1085case "$enable_tfo_client" in
1086	yes)
1087		case `uname` in
1088			Linux) AC_CHECK_DECL([MSG_FASTOPEN], [AC_MSG_WARN([Check the platform specific TFO kernel parameters are correctly configured to support client mode TFO])],
1089			                     [AC_MSG_ERROR([TCP Fast Open is not available for client mode: please rerun without --enable-tfo-client])],
1090			                     [AC_INCLUDES_DEFAULT
1091#include <netinet/tcp.h>
1092])
1093					AC_DEFINE_UNQUOTED([USE_MSG_FASTOPEN], [1], [Define this to enable client TCP Fast Open.])
1094			  ;;
1095			Darwin) AC_CHECK_DECL([CONNECT_RESUME_ON_READ_WRITE], [AC_MSG_WARN([Check the platform specific TFO kernel parameters are correctly configured to support client mode TFO])],
1096			                      [AC_MSG_ERROR([TCP Fast Open is not available for client mode: please rerun without --enable-tfo-client])],
1097			                      [AC_INCLUDES_DEFAULT
1098#include <sys/socket.h>
1099])
1100					AC_DEFINE_UNQUOTED([USE_OSX_MSG_FASTOPEN], [1], [Define this to enable client TCP Fast Open.])
1101			  ;;
1102		esac
1103	;;
1104	no|*)
1105		;;
1106esac
1107
1108AC_ARG_ENABLE(tfo-server, AC_HELP_STRING([--enable-tfo-server], [Enable TCP Fast Open for server mode]))
1109case "$enable_tfo_server" in
1110	yes)
1111	      AC_CHECK_DECL([TCP_FASTOPEN], [AC_MSG_WARN([Check the platform specific TFO kernel parameters are correctly configured to support server mode TFO])], [AC_MSG_ERROR([TCP Fast Open is not available for server mode: please rerun without --enable-tfo-server])], [AC_INCLUDES_DEFAULT
1112#include <netinet/tcp.h>
1113	      ])
1114		AC_DEFINE_UNQUOTED([USE_TCP_FASTOPEN], [1], [Define this to enable server TCP Fast Open.])
1115		;;
1116	no|*)
1117		;;
1118esac
1119
1120# check for libevent
1121AC_ARG_WITH(libevent, AC_HELP_STRING([--with-libevent=pathname],
1122    [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.]),
1123    [ ],[ withval="no" ])
1124if test x_$withval = x_yes -o x_$withval != x_no; then
1125        AC_MSG_CHECKING(for libevent)
1126        if test x_$withval = x_ -o x_$withval = x_yes; then
1127            withval="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr"
1128        fi
1129        for dir in $withval; do
1130            thedir="$dir"
1131            if test -f "$dir/include/event.h" -o -f "$dir/include/event2/event.h"; then
1132                found_libevent="yes"
1133		dnl assume /usr is in default path.
1134		if test "$thedir" != "/usr"; then
1135                    CPPFLAGS="$CPPFLAGS -I$thedir/include"
1136		fi
1137                break;
1138            fi
1139        done
1140        if test x_$found_libevent != x_yes; then
1141		if test -f "$dir/event.h" -a \( -f "$dir/libevent.la" -o -f "$dir/libev.la" \) ; then
1142			# libevent source directory
1143            		AC_MSG_RESULT(found in $thedir)
1144                	CPPFLAGS="$CPPFLAGS -I$thedir -I$thedir/include"
1145			BAK_LDFLAGS_SET="1"
1146			BAK_LDFLAGS="$LDFLAGS"
1147			# remove evdns from linking
1148			mkdir build >/dev/null 2>&1
1149			mkdir build/libevent >/dev/null 2>&1
1150			mkdir build/libevent/.libs >/dev/null 2>&1
1151			ev_files_o=`ls $thedir/*.o | grep -v evdns\.o | grep -v bufferevent_openssl\.o`
1152			ev_files_lo=`ls $thedir/*.lo | grep -v evdns\.lo | grep -v bufferevent_openssl\.lo`
1153			ev_files_libso=`ls $thedir/.libs/*.o | grep -v evdns\.o | grep -v bufferevent_openssl\.o`
1154			cp $ev_files_o build/libevent
1155			cp $ev_files_lo build/libevent
1156			cp $ev_files_libso build/libevent/.libs
1157            		LATE_LDFLAGS="build/libevent/*.lo -lm"
1158			LDFLAGS="build/libevent/*.o $LDFLAGS -lm"
1159		else
1160            		AC_MSG_ERROR([Cannot find the libevent library in $withval
1161You can restart ./configure --with-libevent=no to use a builtin alternative.
1162Please note that this alternative is not as capable as libevent when using
1163large outgoing port ranges.  ])
1164		fi
1165        else
1166            AC_MSG_RESULT(found in $thedir)
1167	    dnl if event2 exists and no event lib in dir itself, use subdir
1168	    if test ! -f $thedir/lib/libevent.a -a ! -f $thedir/lib/libevent.so -a -d "$thedir/lib/event2"; then
1169		    LDFLAGS="$LDFLAGS -L$thedir/lib/event2"
1170		    ACX_RUNTIME_PATH_ADD([$thedir/lib/event2])
1171	    else
1172		    dnl assume /usr is in default path, do not add "".
1173		    if test "$thedir" != "/usr" -a "$thedir" != ""; then
1174			LDFLAGS="$LDFLAGS -L$thedir/lib"
1175			ACX_RUNTIME_PATH_ADD([$thedir/lib])
1176		    fi
1177	    fi
1178        fi
1179	# check for library used by libevent after 1.3c
1180	AC_SEARCH_LIBS([clock_gettime], [rt])
1181
1182	# is the event.h header libev or libevent?
1183	AC_CHECK_HEADERS([event.h],,, [AC_INCLUDES_DEFAULT])
1184	AC_CHECK_DECL(EV_VERSION_MAJOR, [
1185		AC_SEARCH_LIBS(event_set, [ev])
1186	],[
1187		AC_SEARCH_LIBS(event_set, [event])
1188	],[AC_INCLUDES_DEFAULT
1189#include <event.h>
1190	])
1191	AC_CHECK_FUNCS([event_base_free]) # only in libevent 1.2 and later
1192	AC_CHECK_FUNCS([event_base_once]) # only in libevent 1.4.1 and later
1193	AC_CHECK_FUNCS([event_base_new]) # only in libevent 1.4.1 and later
1194	AC_CHECK_FUNCS([event_base_get_method]) # only in libevent 1.4.3 and later
1195	AC_CHECK_FUNCS([ev_loop]) # only in libev. (tested on 3.51)
1196	AC_CHECK_FUNCS([ev_default_loop]) # only in libev. (tested on 4.00)
1197        PC_LIBEVENT_DEPENDENCY="libevent"
1198        AC_SUBST(PC_LIBEVENT_DEPENDENCY)
1199	if test -n "$BAK_LDFLAGS_SET"; then
1200		LDFLAGS="$BAK_LDFLAGS"
1201	fi
1202else
1203	AC_DEFINE(USE_MINI_EVENT, 1, [Define if you want to use internal select based events])
1204fi
1205
1206# check for libexpat
1207AC_ARG_WITH(libexpat, AC_HELP_STRING([--with-libexpat=path],
1208    [specify explicit path for libexpat.]),
1209    [ ],[ withval="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr" ])
1210AC_MSG_CHECKING(for libexpat)
1211found_libexpat="no"
1212for dir in $withval ; do
1213            if test -f "$dir/include/expat.h"; then
1214		found_libexpat="yes"
1215		dnl assume /usr is in default path.
1216		if test "$dir" != "/usr"; then
1217                    CPPFLAGS="$CPPFLAGS -I$dir/include"
1218		    LDFLAGS="$LDFLAGS -L$dir/lib"
1219		fi
1220            	AC_MSG_RESULT(found in $dir)
1221                break;
1222            fi
1223done
1224if test x_$found_libexpat != x_yes; then
1225	AC_ERROR([Could not find libexpat, expat.h])
1226fi
1227AC_CHECK_HEADERS([expat.h],,, [AC_INCLUDES_DEFAULT])
1228AC_CHECK_DECLS([XML_StopParser], [], [], [AC_INCLUDES_DEFAULT
1229#include <expat.h>
1230])
1231
1232# hiredis (redis C client for cachedb)
1233AC_ARG_WITH(libhiredis, AC_HELP_STRING([--with-libhiredis=path],
1234    [specify explicit path for libhiredis.]),
1235    [ ],[ withval="no" ])
1236found_libhiredis="no"
1237if test x_$withval = x_yes -o x_$withval != x_no; then
1238   AC_MSG_CHECKING(for libhiredis)
1239   if test x_$withval = x_ -o x_$withval = x_yes; then
1240            withval="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr"
1241   fi
1242   for dir in $withval ; do
1243            if test -f "$dir/include/hiredis/hiredis.h"; then
1244		found_libhiredis="yes"
1245		dnl assume /usr is in default path.
1246		if test "$dir" != "/usr"; then
1247                    CPPFLAGS="$CPPFLAGS -I$dir/include"
1248		    LDFLAGS="$LDFLAGS -L$dir/lib"
1249		fi
1250		AC_MSG_RESULT(found in $dir)
1251		AC_DEFINE([USE_REDIS], [1], [Define this to use hiredis client.])
1252		LIBS="$LIBS -lhiredis"
1253                break;
1254            fi
1255    done
1256    if test x_$found_libhiredis != x_yes; then
1257	AC_ERROR([Could not find libhiredis, hiredis.h])
1258    fi
1259    AC_CHECK_HEADERS([hiredis/hiredis.h],,, [AC_INCLUDES_DEFAULT])
1260    AC_CHECK_DECLS([redisConnect], [], [], [AC_INCLUDES_DEFAULT
1261    #include <hiredis/hiredis.h>
1262    ])
1263fi
1264
1265# set static linking if requested
1266AC_SUBST(staticexe)
1267staticexe=""
1268AC_ARG_ENABLE(static-exe, AC_HELP_STRING([--enable-static-exe],
1269	[ enable to compile executables statically against (event) libs, for debug purposes ]),
1270	, )
1271if test x_$enable_static_exe = x_yes; then
1272	staticexe="-static"
1273	if test "$on_mingw" = yes; then
1274		staticexe="-all-static"
1275		# for static compile, include gdi32 and zlib here.
1276		if echo $LIBS | grep 'lgdi32' >/dev/null; then
1277			:
1278		else
1279			LIBS="$LIBS -lgdi32"
1280		fi
1281		LIBS="$LIBS -lz"
1282	fi
1283fi
1284
1285# Include systemd.m4 - begin
1286sinclude(systemd.m4)
1287# Include systemd.m4 - end
1288
1289# set lock checking if requested
1290AC_ARG_ENABLE(lock_checks, AC_HELP_STRING([--enable-lock-checks],
1291	[ enable to check lock and unlock calls, for debug purposes ]),
1292	, )
1293if test x_$enable_lock_checks = x_yes; then
1294	AC_DEFINE(ENABLE_LOCK_CHECKS, 1, [Define if you want to use debug lock checking (slow).])
1295	CHECKLOCK_OBJ="checklocks.lo"
1296	AC_SUBST(CHECKLOCK_OBJ)
1297fi
1298
1299ACX_CHECK_GETADDRINFO_WITH_INCLUDES
1300if test "$USE_WINSOCK" = 1; then
1301	AC_DEFINE(UB_ON_WINDOWS, 1, [Use win32 resources and API])
1302	AC_CHECK_HEADERS([iphlpapi.h],,, [AC_INCLUDES_DEFAULT
1303#include <windows.h>
1304	])
1305	AC_CHECK_TOOL(WINDRES, windres)
1306	LIBS="$LIBS -liphlpapi -lcrypt32"
1307	WINAPPS="unbound-service-install.exe unbound-service-remove.exe anchor-update.exe"
1308	AC_SUBST(WINAPPS)
1309	WIN_DAEMON_SRC="winrc/win_svc.c winrc/w_inst.c"
1310	AC_SUBST(WIN_DAEMON_SRC)
1311	WIN_DAEMON_OBJ="win_svc.lo w_inst.lo"
1312	AC_SUBST(WIN_DAEMON_OBJ)
1313	WIN_DAEMON_OBJ_LINK="rsrc_unbound.o"
1314	AC_SUBST(WIN_DAEMON_OBJ_LINK)
1315	WIN_HOST_OBJ_LINK="rsrc_unbound_host.o"
1316	AC_SUBST(WIN_HOST_OBJ_LINK)
1317	WIN_UBANCHOR_OBJ_LINK="rsrc_unbound_anchor.o log.lo locks.lo"
1318	AC_SUBST(WIN_UBANCHOR_OBJ_LINK)
1319	WIN_CONTROL_OBJ_LINK="rsrc_unbound_control.o"
1320	AC_SUBST(WIN_CONTROL_OBJ_LINK)
1321	WIN_CHECKCONF_OBJ_LINK="rsrc_unbound_checkconf.o"
1322	AC_SUBST(WIN_CHECKCONF_OBJ_LINK)
1323fi
1324if test $ac_cv_func_getaddrinfo = no; then
1325	AC_LIBOBJ([fake-rfc2553])
1326fi
1327# check after getaddrinfo for its libraries
1328ACX_FUNC_IOCTLSOCKET
1329
1330# see if daemon(3) exists, and if it is deprecated.
1331AC_CHECK_FUNCS([daemon])
1332if test $ac_cv_func_daemon = yes; then
1333	ACX_FUNC_DEPRECATED([daemon], [(void)daemon(0, 0);], [
1334#include <stdlib.h>
1335])
1336fi
1337
1338AC_CHECK_MEMBERS([struct sockaddr_un.sun_len],,,[
1339AC_INCLUDES_DEFAULT
1340#ifdef HAVE_SYS_UN_H
1341#include <sys/un.h>
1342#endif
1343])
1344AC_CHECK_MEMBERS([struct in_pktinfo.ipi_spec_dst],,,[
1345AC_INCLUDES_DEFAULT
1346#if HAVE_SYS_PARAM_H
1347#include <sys/param.h>
1348#endif
1349
1350#ifdef HAVE_SYS_SOCKET_H
1351#include <sys/socket.h>
1352#endif
1353
1354#ifdef HAVE_SYS_UIO_H
1355#include <sys/uio.h>
1356#endif
1357
1358#ifdef HAVE_NETINET_IN_H
1359#include <netinet/in.h>
1360#endif
1361
1362#ifdef HAVE_NETINET_TCP_H
1363#include <netinet/tcp.h>
1364#endif
1365
1366#ifdef HAVE_ARPA_INET_H
1367#include <arpa/inet.h>
1368#endif
1369
1370#ifdef HAVE_WINSOCK2_H
1371#include <winsock2.h>
1372#endif
1373
1374#ifdef HAVE_WS2TCPIP_H
1375#include <ws2tcpip.h>
1376#endif
1377])
1378AC_SEARCH_LIBS([setusercontext], [util])
1379AC_CHECK_FUNCS([tzset sigprocmask fcntl getpwnam endpwent getrlimit setrlimit setsid chroot kill chown sleep usleep random srandom recvmsg sendmsg writev socketpair glob initgroups strftime localtime_r setusercontext _beginthreadex endservent endprotoent fsync shmget accept4])
1380AC_CHECK_FUNCS([setresuid],,[AC_CHECK_FUNCS([setreuid])])
1381AC_CHECK_FUNCS([setresgid],,[AC_CHECK_FUNCS([setregid])])
1382
1383# check if setreuid en setregid fail, on MacOSX10.4(darwin8).
1384if echo $target_os | grep darwin8 > /dev/null; then
1385	AC_DEFINE(DARWIN_BROKEN_SETREUID, 1, [Define this if on macOSX10.4-darwin8 and setreuid and setregid do not work])
1386fi
1387AC_CHECK_DECLS([inet_pton,inet_ntop], [], [], [
1388AC_INCLUDES_DEFAULT
1389#ifdef HAVE_NETINET_IN_H
1390#include <netinet/in.h>
1391#endif
1392
1393#ifdef HAVE_NETINET_TCP_H
1394#include <netinet/tcp.h>
1395#endif
1396
1397#ifdef HAVE_ARPA_INET_H
1398#include <arpa/inet.h>
1399#endif
1400
1401#ifdef HAVE_WINSOCK2_H
1402#include <winsock2.h>
1403#endif
1404
1405#ifdef HAVE_WS2TCPIP_H
1406#include <ws2tcpip.h>
1407#endif
1408])
1409AC_REPLACE_FUNCS(inet_aton)
1410AC_REPLACE_FUNCS(inet_pton)
1411AC_REPLACE_FUNCS(inet_ntop)
1412AC_REPLACE_FUNCS(snprintf)
1413# test if snprintf return the proper length
1414if test "x$ac_cv_func_snprintf" = xyes; then
1415    if test c${cross_compiling} = cno; then
1416	AC_MSG_CHECKING([for correct snprintf return value])
1417	AC_RUN_IFELSE([AC_LANG_SOURCE(AC_INCLUDES_DEFAULT
1418[[
1419int main(void) { return !(snprintf(NULL, 0, "test") == 4); }
1420]])], [AC_MSG_RESULT(yes)], [
1421		AC_MSG_RESULT(no)
1422		AC_DEFINE([SNPRINTF_RET_BROKEN], [], [define if (v)snprintf does not return length needed, (but length used)])
1423		AC_LIBOBJ(snprintf)
1424	  ])
1425    fi
1426fi
1427AC_REPLACE_FUNCS(strlcat)
1428AC_REPLACE_FUNCS(strlcpy)
1429AC_REPLACE_FUNCS(memmove)
1430AC_REPLACE_FUNCS(gmtime_r)
1431AC_REPLACE_FUNCS(isblank)
1432AC_REPLACE_FUNCS(explicit_bzero)
1433dnl without CTIME, ARC4-functions and without reallocarray.
1434LIBOBJ_WITHOUT_CTIMEARC4="$LIBOBJS"
1435AC_SUBST(LIBOBJ_WITHOUT_CTIMEARC4)
1436AC_REPLACE_FUNCS(reallocarray)
1437if test "$USE_NSS" = "no"; then
1438	AC_REPLACE_FUNCS(arc4random)
1439	AC_REPLACE_FUNCS(arc4random_uniform)
1440	if test "$ac_cv_func_arc4random" = "no"; then
1441		AC_LIBOBJ(arc4_lock)
1442		AC_CHECK_FUNCS([getentropy],,[
1443		    if test "$USE_WINSOCK" = 1; then
1444			AC_LIBOBJ(getentropy_win)
1445		    else
1446			case "$host" in
1447			Darwin|*darwin*)
1448				AC_LIBOBJ(getentropy_osx)
1449			;;
1450			*solaris*|*sunos*|SunOS)
1451				AC_LIBOBJ(getentropy_solaris)
1452				AC_CHECK_HEADERS([sys/sha2.h],, [
1453					AC_CHECK_FUNCS([SHA512_Update],,[
1454						AC_LIBOBJ(sha512)
1455					])
1456				], [AC_INCLUDES_DEFAULT])
1457				if test "$ac_cv_header_sys_sha2_h" = "yes"; then
1458					# this lib needed for sha2 on solaris
1459					LIBS="$LIBS -lmd"
1460				fi
1461				AC_SEARCH_LIBS([clock_gettime], [rt])
1462			;;
1463			*linux*|Linux|*)
1464				AC_LIBOBJ(getentropy_linux)
1465				AC_CHECK_FUNCS([SHA512_Update],,[
1466					AC_DEFINE([COMPAT_SHA512], [1], [Do sha512 definitions in config.h])
1467					AC_LIBOBJ(sha512)
1468				])
1469				AC_CHECK_HEADERS([sys/sysctl.h],,, [AC_INCLUDES_DEFAULT])
1470				AC_CHECK_FUNCS([getauxval])
1471				AC_SEARCH_LIBS([clock_gettime], [rt])
1472			;;
1473			esac
1474		    fi
1475		])
1476	fi
1477fi
1478LIBOBJ_WITHOUT_CTIME="$LIBOBJS"
1479AC_SUBST(LIBOBJ_WITHOUT_CTIME)
1480AC_REPLACE_FUNCS(ctime_r)
1481AC_REPLACE_FUNCS(strsep)
1482
1483AC_ARG_ENABLE(allsymbols, AC_HELP_STRING([--enable-allsymbols], [export all symbols from libunbound and link binaries to it, smaller install size but libunbound export table is polluted by internal symbols]))
1484case "$enable_allsymbols" in
1485	yes)
1486	COMMON_OBJ_ALL_SYMBOLS=""
1487	UBSYMS=""
1488	EXTRALINK="-L. -L.libs -lunbound"
1489	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])
1490	;;
1491	no|*)
1492	COMMON_OBJ_ALL_SYMBOLS='$(COMMON_OBJ)'
1493	UBSYMS='-export-symbols $(srcdir)/libunbound/ubsyms.def'
1494	EXTRALINK=""
1495	;;
1496esac
1497AC_SUBST(COMMON_OBJ_ALL_SYMBOLS)
1498AC_SUBST(EXTRALINK)
1499AC_SUBST(UBSYMS)
1500if test x_$enable_lock_checks = x_yes; then
1501	UBSYMS="-export-symbols clubsyms.def"
1502	cp ${srcdir}/libunbound/ubsyms.def clubsyms.def
1503	echo lock_protect >> clubsyms.def
1504	echo lock_unprotect >> clubsyms.def
1505	echo lock_get_mem >> clubsyms.def
1506	echo checklock_start >> clubsyms.def
1507	echo checklock_stop >> clubsyms.def
1508	echo checklock_lock >> clubsyms.def
1509	echo checklock_unlock >> clubsyms.def
1510	echo checklock_init >> clubsyms.def
1511	echo checklock_thrcreate >> clubsyms.def
1512	echo checklock_thrjoin >> clubsyms.def
1513fi
1514
1515# check for dnstap if requested
1516dt_DNSTAP([$UNBOUND_RUN_DIR/dnstap.sock],
1517    [
1518        AC_DEFINE([USE_DNSTAP], [1], [Define to 1 to enable dnstap support])
1519        AC_SUBST([ENABLE_DNSTAP], [1])
1520
1521        AC_SUBST([opt_dnstap_socket_path])
1522        ACX_ESCAPE_BACKSLASH($opt_dnstap_socket_path, hdr_dnstap_socket_path)
1523        AC_DEFINE_UNQUOTED(DNSTAP_SOCKET_PATH,
1524            ["$hdr_dnstap_socket_path"], [default dnstap socket path])
1525
1526        AC_SUBST([DNSTAP_SRC], ["dnstap/dnstap.c dnstap/dnstap.pb-c.c"])
1527        AC_SUBST([DNSTAP_OBJ], ["dnstap.lo dnstap.pb-c.lo"])
1528    ],
1529    [
1530        AC_SUBST([ENABLE_DNSTAP], [0])
1531    ]
1532)
1533
1534# check for dnscrypt if requested
1535dnsc_DNSCRYPT([
1536        AC_DEFINE([USE_DNSCRYPT], [1], [Define to 1 to enable dnscrypt support])
1537        AC_SUBST([ENABLE_DNSCRYPT], [1])
1538
1539        AC_SUBST([DNSCRYPT_SRC], ["dnscrypt/dnscrypt.c"])
1540        AC_SUBST([DNSCRYPT_OBJ], ["dnscrypt.lo"])
1541    ],
1542    [
1543        AC_SUBST([ENABLE_DNSCRYPT], [0])
1544    ]
1545)
1546
1547# check for cachedb if requested
1548AC_ARG_ENABLE(cachedb, AC_HELP_STRING([--enable-cachedb], [enable cachedb module that can use external cache storage]))
1549# turn on cachedb when hiredis support is enabled.
1550if test "$found_libhiredis" = "yes"; then enable_cachedb="yes"; fi
1551case "$enable_cachedb" in
1552    yes)
1553    	AC_DEFINE([USE_CACHEDB], [1], [Define to 1 to use cachedb support])
1554    	;;
1555    no|*)
1556    	# nothing
1557    	;;
1558esac
1559
1560# check for ipsecmod if requested
1561AC_ARG_ENABLE(ipsecmod, AC_HELP_STRING([--enable-ipsecmod], [Enable ipsecmod module that facilitates opportunistic IPsec]))
1562case "$enable_ipsecmod" in
1563	yes)
1564		AC_DEFINE([USE_IPSECMOD], [1], [Define to 1 to use ipsecmod support.])
1565		IPSECMOD_OBJ="ipsecmod.lo ipsecmod-whitelist.lo"
1566		AC_SUBST(IPSECMOD_OBJ)
1567		IPSECMOD_HEADER='$(srcdir)/ipsecmod/ipsecmod.h $(srcdir)/ipsecmod/ipsecmod-whitelist.h'
1568		AC_SUBST(IPSECMOD_HEADER)
1569		;;
1570	no|*)
1571		# nothing
1572		;;
1573esac
1574
1575AC_MSG_CHECKING([if ${MAKE:-make} supports $< with implicit rule in scope])
1576# on openBSD, the implicit rule make $< work.
1577# on Solaris, it does not work ($? is changed sources, $^ lists dependencies).
1578# gmake works.
1579cat >conftest.make <<EOF
1580all:	conftest.lo
1581
1582conftest.lo foo.lo bla.lo:
1583	if test -f "\$<"; then touch \$@; fi
1584
1585.SUFFIXES: .lo
1586.c.lo:
1587	if test -f "\$<"; then touch \$@; fi
1588
1589conftest.lo:        conftest.dir/conftest.c
1590EOF
1591mkdir conftest.dir
1592touch conftest.dir/conftest.c
1593rm -f conftest.lo conftest.c
1594${MAKE:-make} -f conftest.make >/dev/null
1595rm -f conftest.make conftest.c conftest.dir/conftest.c
1596rm -rf conftest.dir
1597if test ! -f conftest.lo; then
1598	AC_MSG_RESULT(no)
1599	SOURCEDETERMINE='echo "$^" | awk "-F " "{print \$$1;}" > .source'
1600	SOURCEFILE='`cat .source`'
1601else
1602	AC_MSG_RESULT(yes)
1603	SOURCEDETERMINE=':'
1604	SOURCEFILE='$<'
1605fi
1606rm -f conftest.lo
1607AC_SUBST(SOURCEDETERMINE)
1608AC_SUBST(SOURCEFILE)
1609
1610# see if we want to build the library or everything
1611ALLTARGET="alltargets"
1612INSTALLTARGET="install-all"
1613AC_ARG_WITH(libunbound-only, AC_HELP_STRING([--with-libunbound-only],
1614	[do not build daemon and tool programs]),
1615	[
1616	if test "$withval" = "yes"; then
1617		ALLTARGET="lib"
1618		INSTALLTARGET="install-lib"
1619	fi
1620])
1621if test $ALLTARGET = "alltargets"; then
1622	if test $USE_NSS = "yes"; then
1623		AC_ERROR([--with-nss can only be used in combination with --with-libunbound-only.])
1624	fi
1625	if test $USE_NETTLE = "yes"; then
1626		AC_ERROR([--with-nettle can only be used in combination with --with-libunbound-only.])
1627	fi
1628fi
1629
1630AC_SUBST(ALLTARGET)
1631AC_SUBST(INSTALLTARGET)
1632
1633ACX_STRIP_EXT_FLAGS
1634if test -n "$LATE_LDFLAGS"; then
1635  LDFLAGS="$LATE_LDFLAGS $LDFLAGS"
1636fi
1637# remove start spaces
1638LDFLAGS=`echo "$LDFLAGS"|sed -e 's/^ *//'`
1639LIBS=`echo "$LIBS"|sed -e 's/^ *//'`
1640
1641AC_DEFINE_UNQUOTED([MAXSYSLOGMSGLEN], [10240], [Define to the maximum message length to pass to syslog.])
1642
1643AH_BOTTOM(
1644dnl this must be first AH_CONFIG, to define the flags before any includes.
1645AHX_CONFIG_EXT_FLAGS
1646
1647dnl includes
1648[
1649#ifndef UNBOUND_DEBUG
1650#  define NDEBUG
1651#endif
1652
1653/** Use small-ldns codebase */
1654#define USE_SLDNS 1
1655#ifdef HAVE_SSL
1656#  define LDNS_BUILD_CONFIG_HAVE_SSL 1
1657#endif
1658
1659#include <stdio.h>
1660#include <string.h>
1661#include <unistd.h>
1662#include <assert.h>
1663
1664#if STDC_HEADERS
1665#include <stdlib.h>
1666#include <stddef.h>
1667#endif
1668
1669#ifdef HAVE_STDARG_H
1670#include <stdarg.h>
1671#endif
1672
1673#ifdef HAVE_STDINT_H
1674#include <stdint.h>
1675#endif
1676
1677#include <errno.h>
1678
1679#if HAVE_SYS_PARAM_H
1680#include <sys/param.h>
1681#endif
1682
1683#ifdef HAVE_SYS_SOCKET_H
1684#include <sys/socket.h>
1685#endif
1686
1687#ifdef HAVE_SYS_UIO_H
1688#include <sys/uio.h>
1689#endif
1690
1691#ifdef HAVE_NETINET_IN_H
1692#include <netinet/in.h>
1693#endif
1694
1695#ifdef HAVE_NETINET_TCP_H
1696#include <netinet/tcp.h>
1697#endif
1698
1699#ifdef HAVE_ARPA_INET_H
1700#include <arpa/inet.h>
1701#endif
1702
1703#ifdef HAVE_WINSOCK2_H
1704#include <winsock2.h>
1705#endif
1706
1707#ifdef HAVE_WS2TCPIP_H
1708#include <ws2tcpip.h>
1709#endif
1710
1711#ifndef USE_WINSOCK
1712#define ARG_LL "%ll"
1713#else
1714#define ARG_LL "%I64"
1715#endif
1716
1717#ifndef AF_LOCAL
1718#define AF_LOCAL AF_UNIX
1719#endif
1720]
1721
1722AHX_CONFIG_FORMAT_ATTRIBUTE
1723AHX_CONFIG_UNUSED_ATTRIBUTE
1724AHX_CONFIG_FSEEKO
1725AHX_CONFIG_MAXHOSTNAMELEN
1726#if !defined(HAVE_SNPRINTF) || defined(SNPRINTF_RET_BROKEN)
1727#define snprintf snprintf_unbound
1728#define vsnprintf vsnprintf_unbound
1729#include <stdarg.h>
1730int snprintf (char *str, size_t count, const char *fmt, ...);
1731int vsnprintf (char *str, size_t count, const char *fmt, va_list arg);
1732#endif /* HAVE_SNPRINTF or SNPRINTF_RET_BROKEN */
1733AHX_CONFIG_INET_PTON(unbound)
1734AHX_CONFIG_INET_NTOP(unbound)
1735AHX_CONFIG_INET_ATON(unbound)
1736AHX_CONFIG_MEMMOVE(unbound)
1737AHX_CONFIG_STRLCAT(unbound)
1738AHX_CONFIG_STRLCPY(unbound)
1739AHX_CONFIG_GMTIME_R(unbound)
1740AHX_CONFIG_REALLOCARRAY(unbound)
1741AHX_CONFIG_W32_SLEEP
1742AHX_CONFIG_W32_USLEEP
1743AHX_CONFIG_W32_RANDOM
1744AHX_CONFIG_W32_SRANDOM
1745AHX_CONFIG_W32_FD_SET_T
1746AHX_CONFIG_IPV6_MIN_MTU
1747AHX_MEMCMP_BROKEN(unbound)
1748
1749[
1750#ifndef HAVE_CTIME_R
1751#define ctime_r unbound_ctime_r
1752char *ctime_r(const time_t *timep, char *buf);
1753#endif
1754
1755#ifndef HAVE_STRSEP
1756#define strsep unbound_strsep
1757char *strsep(char **stringp, const char *delim);
1758#endif
1759
1760#ifndef HAVE_ISBLANK
1761#define isblank unbound_isblank
1762int isblank(int c);
1763#endif
1764
1765#ifndef HAVE_EXPLICIT_BZERO
1766#define explicit_bzero unbound_explicit_bzero
1767void explicit_bzero(void* buf, size_t len);
1768#endif
1769
1770#if defined(HAVE_INET_NTOP) && !HAVE_DECL_INET_NTOP
1771const char *inet_ntop(int af, const void *src, char *dst, size_t size);
1772#endif
1773
1774#if defined(HAVE_INET_PTON) && !HAVE_DECL_INET_PTON
1775int inet_pton(int af, const char* src, void* dst);
1776#endif
1777
1778#if !defined(HAVE_STRPTIME) || !defined(STRPTIME_WORKS)
1779#define strptime unbound_strptime
1780struct tm;
1781char *strptime(const char *s, const char *format, struct tm *tm);
1782#endif
1783
1784#ifdef HAVE_LIBRESSL
1785#  if !HAVE_DECL_STRLCPY
1786size_t strlcpy(char *dst, const char *src, size_t siz);
1787#  endif
1788#  if !HAVE_DECL_STRLCAT
1789size_t strlcat(char *dst, const char *src, size_t siz);
1790#  endif
1791#  if !HAVE_DECL_ARC4RANDOM && defined(HAVE_ARC4RANDOM)
1792uint32_t arc4random(void);
1793#  endif
1794#  if !HAVE_DECL_ARC4RANDOM_UNIFORM && defined(HAVE_ARC4RANDOM_UNIFORM)
1795uint32_t arc4random_uniform(uint32_t upper_bound);
1796#  endif
1797#  if !HAVE_DECL_REALLOCARRAY
1798void *reallocarray(void *ptr, size_t nmemb, size_t size);
1799#  endif
1800#endif /* HAVE_LIBRESSL */
1801#ifndef HAVE_ARC4RANDOM
1802int getentropy(void* buf, size_t len);
1803uint32_t arc4random(void);
1804void arc4random_buf(void* buf, size_t n);
1805void _ARC4_LOCK(void);
1806void _ARC4_UNLOCK(void);
1807void _ARC4_LOCK_DESTROY(void);
1808#endif
1809#ifndef HAVE_ARC4RANDOM_UNIFORM
1810uint32_t arc4random_uniform(uint32_t upper_bound);
1811#endif
1812#ifdef COMPAT_SHA512
1813#ifndef SHA512_DIGEST_LENGTH
1814#define SHA512_BLOCK_LENGTH		128
1815#define SHA512_DIGEST_LENGTH		64
1816#define SHA512_DIGEST_STRING_LENGTH	(SHA512_DIGEST_LENGTH * 2 + 1)
1817typedef struct _SHA512_CTX {
1818	uint64_t	state[8];
1819	uint64_t	bitcount[2];
1820	uint8_t	buffer[SHA512_BLOCK_LENGTH];
1821} SHA512_CTX;
1822#endif /* SHA512_DIGEST_LENGTH */
1823void SHA512_Init(SHA512_CTX*);
1824void SHA512_Update(SHA512_CTX*, void*, size_t);
1825void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
1826unsigned char *SHA512(void* data, unsigned int data_len, unsigned char *digest);
1827#endif /* COMPAT_SHA512 */
1828
1829
1830
1831#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))
1832   /* using version of libevent that is not threadsafe. */
1833#  define LIBEVENT_SIGNAL_PROBLEM 1
1834#endif
1835
1836#ifndef CHECKED_INET6
1837#  define CHECKED_INET6
1838#  ifdef AF_INET6
1839#    define INET6
1840#  else
1841#    define AF_INET6        28
1842#  endif
1843#endif /* CHECKED_INET6 */
1844
1845#ifndef HAVE_GETADDRINFO
1846struct sockaddr_storage;
1847#include "compat/fake-rfc2553.h"
1848#endif
1849
1850#ifdef UNBOUND_ALLOC_STATS
1851#  define malloc(s) unbound_stat_malloc_log(s, __FILE__, __LINE__, __func__)
1852#  define calloc(n,s) unbound_stat_calloc_log(n, s, __FILE__, __LINE__, __func__)
1853#  define free(p) unbound_stat_free_log(p, __FILE__, __LINE__, __func__)
1854#  define realloc(p,s) unbound_stat_realloc_log(p, s, __FILE__, __LINE__, __func__)
1855void *unbound_stat_malloc(size_t size);
1856void *unbound_stat_calloc(size_t nmemb, size_t size);
1857void unbound_stat_free(void *ptr);
1858void *unbound_stat_realloc(void *ptr, size_t size);
1859void *unbound_stat_malloc_log(size_t size, const char* file, int line,
1860	const char* func);
1861void *unbound_stat_calloc_log(size_t nmemb, size_t size, const char* file,
1862	int line, const char* func);
1863void unbound_stat_free_log(void *ptr, const char* file, int line,
1864	const char* func);
1865void *unbound_stat_realloc_log(void *ptr, size_t size, const char* file,
1866	int line, const char* func);
1867#elif defined(UNBOUND_ALLOC_LITE)
1868#  include "util/alloc.h"
1869#endif /* UNBOUND_ALLOC_LITE and UNBOUND_ALLOC_STATS */
1870
1871/** default port for DNS traffic. */
1872#define UNBOUND_DNS_PORT 53
1873/** default port for DNS over TLS traffic. */
1874#define UNBOUND_DNS_OVER_TLS_PORT 853
1875/** default port for unbound control traffic, registered port with IANA,
1876    ub-dns-control  8953/tcp    unbound dns nameserver control */
1877#define UNBOUND_CONTROL_PORT 8953
1878/** the version of unbound-control that this software implements */
1879#define UNBOUND_CONTROL_VERSION 1
1880
1881])
1882
1883dnl if we build from source tree, the man pages need @date@ and @version@
1884dnl if this is a distro tarball, that was already done by makedist.sh
1885AC_SUBST(version, [VERSION_MAJOR.VERSION_MINOR.VERSION_MICRO])
1886AC_SUBST(date, [`date +'%b %e, %Y'`])
1887
1888AC_CONFIG_FILES([Makefile doc/example.conf doc/libunbound.3 doc/unbound.8 doc/unbound-anchor.8 doc/unbound-checkconf.8 doc/unbound.conf.5 doc/unbound-control.8 doc/unbound-host.1 smallapp/unbound-control-setup.sh dnstap/dnstap_config.h dnscrypt/dnscrypt_config.h contrib/libunbound.pc contrib/unbound.socket contrib/unbound.service])
1889AC_CONFIG_HEADER([config.h])
1890AC_OUTPUT
1891