1 dnl Copyright (c) 2001-2004, Roger Dingledine
2 dnl Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson
3 dnl Copyright (c) 2007-2013, The Tor Project, Inc.
4 dnl See LICENSE for licensing information
6 AC_INIT([tor],[0.2.4.17-rc])
7 AC_CONFIG_SRCDIR([src/or/main.c])
8 AC_CONFIG_MACRO_DIR([m4])
10 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
11 AC_CONFIG_HEADERS([orconfig.h])
15 if test -f /etc/redhat-release ; then
16 if test -f /usr/kerberos/include ; then
17 CPPFLAGS="$CPPFLAGS -I/usr/kerberos/include"
21 # Not a no-op; we want to make sure that CPPFLAGS is set before we use
22 # the += operator on it in src/or/Makefile.am
23 CPPFLAGS="$CPPFLAGS -I\${top_srcdir}/src/common"
25 #XXXX020 We should make these enabled or not, before 0.2.0.x-final
26 AC_ARG_ENABLE(buf-freelists,
27 AS_HELP_STRING(--disable-buf-freelists, disable freelists for buffer RAM))
28 AC_ARG_ENABLE(openbsd-malloc,
29 AS_HELP_STRING(--enable-openbsd-malloc, Use malloc code from openbsd. Linux only))
30 AC_ARG_ENABLE(instrument-downloads,
31 AS_HELP_STRING(--enable-instrument-downloads, Instrument downloads of directory resources etc.))
32 AC_ARG_ENABLE(static-openssl,
33 AS_HELP_STRING(--enable-static-openssl, Link against a static openssl library. Requires --with-openssl-dir))
34 AC_ARG_ENABLE(static-libevent,
35 AS_HELP_STRING(--enable-static-libevent, Link against a static libevent library. Requires --with-libevent-dir))
36 AC_ARG_ENABLE(static-zlib,
37 AS_HELP_STRING(--enable-static-zlib, Link against a static zlib library. Requires --with-zlib-dir))
38 AC_ARG_ENABLE(static-tor,
39 AS_HELP_STRING(--enable-static-tor, Create an entirely static Tor binary. Requires --with-openssl-dir and --with-libevent-dir and --with-zlib-dir))
40 AC_ARG_ENABLE(curve25519,
41 AS_HELP_STRING(--disable-curve25519, Build Tor with no curve25519 elliptic-curve crypto support))
43 if test "$enable_static_tor" = "yes"; then
44 enable_static_libevent="yes";
45 enable_static_openssl="yes";
46 enable_static_zlib="yes";
47 CFLAGS="$CFLAGS -static"
50 if test x$enable_buf_freelists != xno; then
51 AC_DEFINE(ENABLE_BUF_FREELISTS, 1,
52 [Defined if we try to use freelists for buffer RAM chunks])
54 AM_CONDITIONAL(USE_OPENBSD_MALLOC, test x$enable_openbsd_malloc = xyes)
55 if test x$enable_instrument_downloads = xyes; then
56 AC_DEFINE(INSTRUMENT_DOWNLOADS, 1,
57 [Defined if we want to keep track of how much of each kind of resource we download.])
60 AC_ARG_ENABLE(transparent,
61 AS_HELP_STRING(--disable-transparent, disable transparent proxy support),
62 [case "${enableval}" in
63 yes) transparent=true ;;
64 no) transparent=false ;;
65 *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
66 esac], [transparent=true])
68 AC_ARG_ENABLE(asciidoc,
69 AS_HELP_STRING(--disable-asciidoc, don't use asciidoc (disables building of manpages)),
70 [case "${enableval}" in
73 *) AC_MSG_ERROR(bad value for --disable-asciidoc) ;;
74 esac], [asciidoc=true])
76 # By default, we're not ready to ship a NAT-PMP aware Tor
77 AC_ARG_ENABLE(nat-pmp,
78 AS_HELP_STRING(--enable-nat-pmp, enable NAT-PMP support),
79 [case "${enableval}" in
82 * ) AC_MSG_ERROR(bad value for --enable-nat-pmp) ;;
83 esac], [natpmp=false])
85 # By default, we're not ready to ship a UPnP aware Tor
87 AS_HELP_STRING(--enable-upnp, enable UPnP support),
88 [case "${enableval}" in
91 * ) AC_MSG_ERROR(bad value for --enable-upnp) ;;
95 AC_ARG_ENABLE(threads,
96 AS_HELP_STRING(--disable-threads, disable multi-threading support))
98 if test x$enable_threads = x; then
101 # Don't try multithreading on solaris -- cpuworkers seem to lock.
102 AC_MSG_NOTICE([You are running Solaris; Sometimes threading makes
103 cpu workers lock up here, so I will disable threads.])
104 enable_threads="no";;
106 enable_threads="yes";;
110 if test "$enable_threads" = "yes"; then
111 AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
116 AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
120 AC_ARG_ENABLE(gcc-warnings,
121 AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
122 AC_ARG_ENABLE(gcc-warnings-advisory,
123 AS_HELP_STRING(--enable-gcc-warnings-advisory, [enable verbose warnings, excluding -Werror]))
125 dnl Adam shostack suggests the following for Windows:
126 dnl -D_FORTIFY_SOURCE=2 -fstack-protector-all
127 dnl Others suggest '/gs /safeseh /nxcompat /dynamicbase' for non-gcc on Windows
128 dnl This requires that we use gcc and that we add -O2 to the CFLAGS.
129 AC_ARG_ENABLE(gcc-hardening,
130 AS_HELP_STRING(--disable-gcc-hardening, disable compiler security checks))
132 dnl Linker hardening options
133 dnl Currently these options are ELF specific - you can't use this with MacOSX
134 AC_ARG_ENABLE(linker-hardening,
135 AS_HELP_STRING(--disable-linker-hardening, disable linker security fixups))
137 AC_ARG_ENABLE(local-appdata,
138 AS_HELP_STRING(--enable-local-appdata, default to host local application data paths on Windows))
139 if test "$enable_local_appdata" = "yes"; then
140 AC_DEFINE(ENABLE_LOCAL_APPDATA, 1,
141 [Defined if we default to host local appdata paths on Windows])
145 AC_ARG_ENABLE(tor2web-mode,
146 AS_HELP_STRING(--enable-tor2web-mode, support tor2web non-anonymous mode),
147 [if test x$enableval = xyes; then
148 CFLAGS="$CFLAGS -D ENABLE_TOR2WEB_MODE=1"
151 AC_ARG_ENABLE(bufferevents,
152 AS_HELP_STRING(--enable-bufferevents, use Libevent's buffered IO.))
154 dnl check for the correct "ar" when cross-compiling
155 AN_MAKEVAR([AR], [AC_PROG_AR])
156 AN_PROGRAM([ar], [AC_PROG_AR])
157 AC_DEFUN([AC_PROG_AR], [AC_CHECK_TOOL([AR], [ar], [ar])])
165 dnl autoconf 2.59 appears not to support AC_PROG_SED
166 AC_CHECK_PROG([SED],[sed],[sed],[/bin/false])
168 dnl check for asciidoc and a2x
169 AC_PATH_PROG([ASCIIDOC], [asciidoc], none)
170 AC_PATH_PROG([A2X], [a2x], none)
172 AM_CONDITIONAL(USE_ASCIIDOC, test x$asciidoc = xtrue)
174 AM_CONDITIONAL(USE_FW_HELPER, test x$natpmp = xtrue || test x$upnp = xtrue)
175 AM_CONDITIONAL(NAT_PMP, test x$natpmp = xtrue)
176 AM_CONDITIONAL(MINIUPNPC, test x$upnp = xtrue)
179 ifdef([AC_C_FLEXIBLE_ARRAY_MEMBER], [
180 AC_C_FLEXIBLE_ARRAY_MEMBER
182 dnl Maybe we've got an old autoconf...
183 AC_CACHE_CHECK([for flexible array members],
187 struct abc { int a; char b[]; };
189 struct abc *def = malloc(sizeof(struct abc)+sizeof(char));
192 [tor_cv_c_flexarray=yes],
193 [tor_cv_c_flexarray=no])])
194 if test $tor_cv_flexarray = yes ; then
195 AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [], [Define to nothing if C supports flexible array members, and to 1 if it does not.])
197 AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [1], [Define to nothing if C supports flexible array members, and to 1 if it does not.])
201 AC_PATH_PROG([SHA1SUM], [sha1sum], none)
202 AC_PATH_PROG([OPENSSL], [openssl], none)
205 AC_ARG_WITH(tor-user,
206 [ --with-tor-user=NAME Specify username for tor daemon ],
214 AC_ARG_WITH(tor-group,
215 [ --with-tor-group=NAME Specify group name for tor daemon ],
223 dnl If _WIN32 is defined and non-zero, we are building for win32
224 AC_MSG_CHECKING([for win32])
225 AC_RUN_IFELSE([AC_LANG_SOURCE([
226 int main(int c, char **v) {
237 bwin32=true; AC_MSG_RESULT([yes]),
238 bwin32=false; AC_MSG_RESULT([no]),
239 bwin32=cross; AC_MSG_RESULT([cross])
242 if test "$bwin32" = cross; then
243 AC_MSG_CHECKING([for win32 (cross)])
244 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
246 int main(int c, char **v) {return 0;}
249 int main(int c, char **v) {return x(y);}
252 bwin32=true; AC_MSG_RESULT([yes]),
253 bwin32=false; AC_MSG_RESULT([no]))
256 AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
258 dnl Enable C99 when compiling with MIPSpro
259 AC_MSG_CHECKING([for MIPSpro compiler])
260 AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [
261 #if (defined(__sgi) && defined(_COMPILER_VERSION))
266 bmipspro=false; AC_MSG_RESULT(no),
267 bmipspro=true; AC_MSG_RESULT(yes))
269 if test "$bmipspro" = true; then
270 CFLAGS="$CFLAGS -c99"
275 AC_SEARCH_LIBS(socket, [socket network])
276 AC_SEARCH_LIBS(gethostbyname, [nsl])
277 AC_SEARCH_LIBS(dlopen, [dl])
278 AC_SEARCH_LIBS(inet_aton, [resolv])
280 AC_SEARCH_LIBS([clock_gettime], [rt])
281 if test "$LIBS" != "$saved_LIBS"; then
282 # Looks like we need -lrt for clock_gettime().
286 if test "$enable_threads" = "yes"; then
287 AC_SEARCH_LIBS(pthread_create, [pthread])
288 AC_SEARCH_LIBS(pthread_detach, [pthread])
291 dnl -------------------------------------------------------------------
292 dnl Check for functions before libevent, since libevent-1.2 apparently
293 dnl exports strlcpy without defining it in a header.
327 if test "$enable_threads" = "yes"; then
328 AC_CHECK_HEADERS(pthread.h)
329 AC_CHECK_FUNCS(pthread_create)
332 dnl ------------------------------------------------------
333 dnl Where do you live, libevent? And how do we call you?
335 if test "$bwin32" = true; then
336 TOR_LIB_WS32=-lws2_32
337 TOR_LIB_IPHLPAPI=-liphlpapi
338 # Some of the cargo-cults recommend -lwsock32 as well, but I don't
339 # think it's actually necessary.
345 AC_SUBST(TOR_LIB_WS32)
346 AC_SUBST(TOR_LIB_GDI)
347 AC_SUBST(TOR_LIB_IPHLPAPI)
349 dnl We need to do this before we try our disgusting hack below.
350 AC_CHECK_HEADERS([sys/types.h])
352 dnl This is a disgusting hack so we safely include older libevent headers.
353 AC_CHECK_TYPE(u_int64_t, unsigned long long)
354 AC_CHECK_TYPE(u_int32_t, unsigned long)
355 AC_CHECK_TYPE(u_int16_t, unsigned short)
356 AC_CHECK_TYPE(u_int8_t, unsigned char)
358 tor_libevent_pkg_redhat="libevent"
359 tor_libevent_pkg_debian="libevent-dev"
360 tor_libevent_devpkg_redhat="libevent-devel"
361 tor_libevent_devpkg_debian="libevent-dev"
363 dnl On Gnu/Linux or any place we require it, we'll add librt to the Libevent
364 dnl linking for static builds.
365 STATIC_LIBEVENT_FLAGS=""
366 if test "$enable_static_libevent" = "yes"; then
367 if test "$have_rt" = yes; then
368 STATIC_LIBEVENT_FLAGS=" -lrt "
372 TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32], [
374 #include <winsock2.h>
377 #include <sys/time.h>
378 #include <sys/types.h>
379 #include <event.h>], [
381 #include <winsock2.h>
383 void exit(int); void *event_init(void);],
386 {WSADATA d; WSAStartup(0x101,&d); }
388 event_init(); exit(0);
389 ], [--with-libevent-dir], [/opt/libevent])
391 dnl Now check for particular libevent functions.
393 save_LDFLAGS="$LDFLAGS"
394 save_CPPFLAGS="$CPPFLAGS"
395 LIBS="-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32 $LIBS"
396 LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
397 CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
398 AC_CHECK_FUNCS(event_get_version event_get_version_number event_get_method event_set_log_callback evdns_set_outgoing_bind_address event_base_loopexit)
399 AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
403 AC_CHECK_HEADERS(event2/event.h event2/dns.h event2/bufferevent_ssl.h)
406 LDFLAGS="$save_LDFLAGS"
407 CPPFLAGS="$save_CPPFLAGS"
410 AM_CONDITIONAL(USE_EXTERNAL_EVDNS, test x$ac_cv_header_event2_dns_h = xyes)
412 if test "$enable_static_libevent" = "yes"; then
413 if test "$tor_cv_library_libevent_dir" = "(system)"; then
414 AC_MSG_ERROR("You must specify an explicit --with-libevent-dir=x option when using --enable-static-libevent")
416 TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent.a $STATIC_LIBEVENT_FLAGS"
419 TOR_LIBEVENT_LIBS="-levent"
422 dnl This isn't the best test for Libevent 2.0.3-alpha. Once it's released,
423 dnl we can do much better.
424 if test "$enable_bufferevents" = "yes" ; then
425 if test "$ac_cv_header_event2_bufferevent_ssl_h" != "yes" ; then
426 AC_MSG_ERROR([You've asked for bufferevent support, but you're using a version of Libevent without SSL support. This won't work. We need Libevent 2.0.8-rc or later, and you don't seem to even have Libevent 2.0.3-alpha.])
429 CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent"
431 # Check for the right version. First see if version detection works.
432 AC_MSG_CHECKING([whether we can detect the Libevent version])
433 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
434 #include <event2/event.h>
435 #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 10
441 ])], [event_version_number_works=yes; AC_MSG_RESULT([yes]) ],
442 [event_version_number_works=no; AC_MSG_RESULT([no])])
443 if test "$event_version_number_works" != 'yes'; then
444 AC_MSG_WARN([Version detection on Libevent seems broken. Your Libevent installation is probably screwed up or very old.])
446 AC_MSG_CHECKING([whether Libevent is new enough for bufferevents])
447 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
448 #include <event2/event.h>
449 #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 0x02000d00
455 ])], [ AC_MSG_RESULT([yes]) ],
456 [ AC_MSG_RESULT([no])
457 AC_MSG_ERROR([Libevent does not seem new enough to support bufferevents. We require 2.0.13-stable or later]) ] )
463 LDFLAGS="$save_LDFLAGS"
464 CPPFLAGS="$save_CPPFLAGS"
466 AM_CONDITIONAL(USE_BUFFEREVENTS, test "$enable_bufferevents" = "yes")
467 if test "$enable_bufferevents" = "yes"; then
468 AC_DEFINE(USE_BUFFEREVENTS, 1, [Defined if we're going to use Libevent's buffered IO API])
469 if test "$enable_static_libevent" = "yes"; then
470 TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent_openssl.a $TOR_LIBEVENT_LIBS"
472 TOR_LIBEVENT_LIBS="-levent_openssl $TOR_LIBEVENT_LIBS"
475 AC_SUBST(TOR_LIBEVENT_LIBS)
477 dnl ------------------------------------------------------
478 dnl Where do you live, libm?
480 dnl On some platforms (Haiku/BeOS) the math library is
481 dnl part of libroot. In which case don't link against lm
484 AC_SEARCH_LIBS(pow, [m], , AC_MSG_ERROR([Could not find pow in libm or libc.]))
485 if test "$ac_cv_search_pow" != "none required"; then
486 TOR_LIB_MATH="$ac_cv_search_pow"
489 AC_SUBST(TOR_LIB_MATH)
491 dnl ------------------------------------------------------
492 dnl Where do you live, openssl? And how do we call you?
494 tor_openssl_pkg_redhat="openssl"
495 tor_openssl_pkg_debian="libssl"
496 tor_openssl_devpkg_redhat="openssl-devel"
497 tor_openssl_devpkg_debian="libssl-dev"
499 ALT_openssl_WITHVAL=""
501 [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
503 if test "x$withval" != xno && test "x$withval" != "x" ; then
504 ALT_openssl_WITHVAL="$withval"
508 TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
509 [#include <openssl/rand.h>],
510 [void RAND_add(const void *buf, int num, double entropy);],
511 [RAND_add((void*)0,0,0); exit(0);], [],
512 [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
514 dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
516 if test "$enable_static_openssl" = "yes"; then
517 if test "$tor_cv_library_openssl_dir" = "(system)"; then
518 AC_MSG_ERROR("You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl")
520 TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a"
523 TOR_OPENSSL_LIBS="-lssl -lcrypto"
525 AC_SUBST(TOR_OPENSSL_LIBS)
527 dnl ------------------------------------------------------
528 dnl Where do you live, zlib? And how do we call you?
530 tor_zlib_pkg_redhat="zlib"
531 tor_zlib_pkg_debian="zlib1g"
532 tor_zlib_devpkg_redhat="zlib-devel"
533 tor_zlib_devpkg_debian="zlib1g-dev"
535 TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
537 [const char * zlibVersion(void);],
538 [zlibVersion(); exit(0);], [--with-zlib-dir],
541 if test "$enable_static_zlib" = "yes"; then
542 if test "$tor_cv_library_zlib_dir" = "(system)"; then
543 AC_MSG_ERROR("You must specify an explicit --with-zlib-dir=x option when
544 using --enable-static-zlib")
546 TOR_ZLIB_LIBS="$TOR_LIBDIR_zlib/libz.a"
551 AC_SUBST(TOR_ZLIB_LIBS)
553 dnl ---------------------------------------------------------------------
554 dnl Now that we know about our major libraries, we can check for compiler
555 dnl and linker hardening options. We need to do this with the libraries known,
556 dnl since sometimes the linker will like an option but not be willing to
557 dnl use it with a build of a library.
559 all_ldflags_for_check="$TOR_LDFLAGS_zlib $TOR_LDFLAGS_openssl $TOR_LDFLAGS_libevent"
560 all_libs_for_check="$TOR_ZLIB_LIBS $TOR_LIB_MATH $TOR_LIBEVENT_LIBS $TOR_OPENSSL_LIBS $TOR_LIB_WS32 $TOR_LIB_GDI"
562 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
563 #if !defined(__clang__)
565 #endif])], have_clang=yes, have_clang=no)
567 if test x$enable_gcc_hardening != xno; then
568 CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2"
569 if test x$have_clang = xyes; then
570 TOR_CHECK_CFLAGS(-Qunused-arguments)
572 TOR_CHECK_CFLAGS(-fstack-protector-all)
573 TOR_CHECK_CFLAGS(-Wstack-protector)
574 TOR_CHECK_CFLAGS(-fwrapv)
575 TOR_CHECK_CFLAGS(--param ssp-buffer-size=1)
576 if test "$bwin32" = "false"; then
577 TOR_CHECK_CFLAGS(-fPIE)
578 TOR_CHECK_LDFLAGS(-pie, "$all_ldflags_for_check", "$all_libs_for_check")
582 if test x$enable_linker_hardening != xno; then
583 TOR_CHECK_LDFLAGS(-z relro -z now, "$all_ldflags_for_check", "$all_libs_for_check")
586 dnl ------------------------------------------------------
587 dnl Where do you live, libnatpmp? And how do we call you?
588 dnl There are no packages for Debian or Redhat as of this patch
590 if test "$natpmp" = "true"; then
591 AC_DEFINE(NAT_PMP, 1, [Define to 1 if we are building with nat-pmp.])
592 TOR_SEARCH_LIBRARY(libnatpmp, $trylibnatpmpdir, [-lnatpmp $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
593 [#include <natpmp.h>],
597 #include <natpmp.h>],
600 natpmpresp_t response;
601 r = initnatpmp(&natpmp, 0, 0);],
602 [printf("initnatpmp() returned %d (%s)\n", r, r?"FAILED":"SUCCESS");
604 [--with-libnatpmp-dir],
609 dnl ------------------------------------------------------
610 dnl Where do you live, libminiupnpc? And how do we call you?
611 dnl There are no packages for Debian or Redhat as of this patch
613 if test "$upnp" = "true"; then
614 AC_DEFINE(MINIUPNPC, 1, [Define to 1 if we are building with UPnP.])
616 dnl Before we call TOR_SEARCH_LIBRARY we'll do a quick compile test
617 dnl to see if we have miniupnpc-1.5 or -1.6
618 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <miniupnpc/miniupnpc.h>],
619 [upnpDiscover(1, 0, 0, 0);exit(0);])],[miniupnpc15="true"],[miniupnpc15="false"])
621 if test "$miniupnpc15" = "true" ; then
622 AC_DEFINE([MINIUPNPC15],[1],[libminiupnpc version 1.5 found])
623 TOR_SEARCH_LIBRARY(libminiupnpc, $trylibminiupnpcdir, [-lminiupnpc $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
624 [#include <miniupnpc/miniwget.h>
625 #include <miniupnpc/miniupnpc.h>
626 #include <miniupnpc/upnpcommands.h>],
627 [void upnpDiscover(int delay, const char * multicastif,
628 const char * minissdpdsock, int sameport);],
629 [upnpDiscover(1, 0, 0, 0); exit(0);],
630 [--with-libminiupnpc-dir],
633 TOR_SEARCH_LIBRARY(libminiupnpc, $trylibminiupnpcdir, [-lminiupnpc $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
634 [#include <miniupnpc/miniwget.h>
635 #include <miniupnpc/miniupnpc.h>
636 #include <miniupnpc/upnpcommands.h>],
637 [void upnpDiscover(int delay, const char * multicastif,
638 const char * minissdpdsock, int sameport, int ipv6, int * error);],
639 [upnpDiscover(1, 0, 0, 0, 0, 0); exit(0);],
640 [--with-libminiupnpc-dir],
645 dnl ============================================================
646 dnl We need an implementation of curve25519.
648 dnl set these defaults.
650 build_curve25519_donna=no
651 build_curve25519_donna_c64=no
652 use_curve25519_donna=no
653 use_curve25519_nacl=no
656 if test x$enable_curve25519 != xno; then
658 dnl The best choice is using curve25519-donna-c64, but that requires
660 AC_CACHE_CHECK([whether we can use curve25519-donna-c64],
661 tor_cv_can_use_curve25519_donna_c64,
663 [AC_LANG_PROGRAM([dnl
665 typedef unsigned uint128_t __attribute__((mode(TI)));
666 int func(uint64_t a, uint64_t b) {
667 uint128_t c = ((uint128_t)a) * b;
668 int ok = ((uint64_t)(c>>96)) == 522859 &&
669 (((uint64_t)(c>>64))&0xffffffffL) == 3604448702L &&
670 (((uint64_t)(c>>32))&0xffffffffL) == 2351960064L &&
671 (((uint64_t)(c))&0xffffffffL) == 0;
675 int ok = func( ((uint64_t)2000000000) * 1000000000,
676 ((uint64_t)1234567890) << 24);
679 [tor_cv_can_use_curve25519_donna_c64=yes],
680 [tor_cv_can_use_curve25519_donna_c64=no],
682 [AC_LANG_PROGRAM([dnl
684 typedef unsigned uint128_t __attribute__((mode(TI)));
685 int func(uint64_t a, uint64_t b) {
686 uint128_t c = ((uint128_t)a) * b;
687 int ok = ((uint64_t)(c>>96)) == 522859 &&
688 (((uint64_t)(c>>64))&0xffffffffL) == 3604448702L &&
689 (((uint64_t)(c>>32))&0xffffffffL) == 2351960064L &&
690 (((uint64_t)(c))&0xffffffffL) == 0;
694 int ok = func( ((uint64_t)2000000000) * 1000000000,
695 ((uint64_t)1234567890) << 24);
698 [tor_cv_can_use_curve25519_donna_c64=cross],
699 [tor_cv_can_use_curve25519_donna_c64=no])])])
701 AC_CHECK_HEADERS([crypto_scalarmult_curve25519.h \
702 nacl/crypto_scalarmult_curve25519.h])
704 AC_CACHE_CHECK([for nacl compiled with a fast curve25519 implementation],
705 tor_cv_can_use_curve25519_nacl,
706 [tor_saved_LIBS="$LIBS"
709 [AC_LANG_PROGRAM([dnl
710 #ifdef HAVE_CRYPTO_SCALARMULT_CURVE25519_H
711 #include <crypto_scalarmult_curve25519.h>
712 #elif defined(HAVE_NACL_CRYPTO_SCALARMULT_CURVE25519_H)
713 #include <nacl/crypto_scalarmult_curve25519.h>
715 #ifdef crypto_scalarmult_curve25519_ref_BYTES
716 #error Hey, this is the reference implementation! That's not fast.
719 unsigned char *a, *b, *c; crypto_scalarmult_curve25519(a,b,c);
720 ])], [tor_cv_can_use_curve25519_nacl=yes],
721 [tor_cv_can_use_curve25519_nacl=no])
722 LIBS="$tor_saved_LIBS" ])
724 dnl Okay, now we need to figure out which one to actually use. Fall back
725 dnl to curve25519-donna.c
727 if test x$tor_cv_can_use_curve25519_donna_c64 != xno; then
728 build_curve25519_donna_c64=yes
729 use_curve25519_donna=yes
730 elif test x$tor_cv_can_use_curve25519_nacl = xyes; then
731 use_curve25519_nacl=yes
732 CURVE25519_LIBS=-lnacl
734 build_curve25519_donna=yes
735 use_curve25519_donna=yes
737 have_a_curve25519=yes
740 if test x$have_a_curve25519 = xyes; then
741 AC_DEFINE(CURVE25519_ENABLED, 1,
742 [Defined if we have a curve25519 implementation])
744 if test x$use_curve25519_donna = xyes; then
745 AC_DEFINE(USE_CURVE25519_DONNA, 1,
746 [Defined if we should use an internal curve25519_donna{,_c64} implementation])
748 if test x$use_curve25519_nacl = xyes; then
749 AC_DEFINE(USE_CURVE25519_NACL, 1,
750 [Defined if we should use a curve25519 from nacl])
752 AM_CONDITIONAL(BUILD_CURVE25519_DONNA, test x$build_curve25519_donna = xyes)
753 AM_CONDITIONAL(BUILD_CURVE25519_DONNA_C64, test x$build_curve25519_donna_c64 = xyes)
754 AM_CONDITIONAL(CURVE25519_ENABLED, test x$have_a_curve25519 = xyes)
755 AC_SUBST(CURVE25519_LIBS)
757 dnl Make sure to enable support for large off_t if available.
772 , , AC_MSG_WARN(Some headers were not found, compilation may fail. If compilation succeeds, please send your orconfig.h to the developers so we can fix this warning.))
774 dnl These headers are not essential
811 AC_CHECK_HEADERS(sys/param.h)
813 AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
814 [#ifdef HAVE_SYS_TYPES_H
815 #include <sys/types.h>
817 #ifdef HAVE_SYS_SOCKET_H
818 #include <sys/socket.h>
820 AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
821 [#ifdef HAVE_SYS_TYPES_H
822 #include <sys/types.h>
824 #ifdef HAVE_SYS_SOCKET_H
825 #include <sys/socket.h>
830 AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
831 linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
832 [#ifdef HAVE_SYS_TYPES_H
833 #include <sys/types.h>
835 #ifdef HAVE_SYS_SOCKET_H
836 #include <sys/socket.h>
841 #ifdef HAVE_LINUX_TYPES_H
842 #include <linux/types.h>
844 #ifdef HAVE_NETINET_IN6_H
845 #include <netinet/in6.h>
847 #ifdef HAVE_NETINET_IN_H
848 #include <netinet/in.h>
851 if test x$transparent = xtrue ; then
853 if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
856 if test x$linux_netfilter_ipv4 = x1 ; then
859 if test x$transparent_ok = x1 ; then
860 AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
862 *-*-openbsd* | *-*-bitrig*)
863 AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
866 AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
870 AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
871 [#ifdef HAVE_SYS_TYPES_H
872 #include <sys/types.h>
874 #ifdef HAVE_SYS_TIME_H
875 #include <sys/time.h>
878 dnl In case we aren't given a working stdint.h, we'll need to grow our own.
881 AC_CHECK_SIZEOF(int8_t)
882 AC_CHECK_SIZEOF(int16_t)
883 AC_CHECK_SIZEOF(int32_t)
884 AC_CHECK_SIZEOF(int64_t)
885 AC_CHECK_SIZEOF(uint8_t)
886 AC_CHECK_SIZEOF(uint16_t)
887 AC_CHECK_SIZEOF(uint32_t)
888 AC_CHECK_SIZEOF(uint64_t)
889 AC_CHECK_SIZEOF(intptr_t)
890 AC_CHECK_SIZEOF(uintptr_t)
892 dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
894 AC_CHECK_SIZEOF(char)
895 AC_CHECK_SIZEOF(short)
897 AC_CHECK_SIZEOF(long)
898 AC_CHECK_SIZEOF(long long)
899 AC_CHECK_SIZEOF(__int64)
900 AC_CHECK_SIZEOF(void *)
901 AC_CHECK_SIZEOF(time_t)
902 AC_CHECK_SIZEOF(size_t)
903 AC_CHECK_SIZEOF(pid_t)
905 AC_CHECK_TYPES([uint, u_char, ssize_t])
907 dnl used to include sockaddr_storage, but everybody has that.
908 AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
909 [#ifdef HAVE_SYS_TYPES_H
910 #include <sys/types.h>
912 #ifdef HAVE_NETINET_IN_H
913 #include <netinet/in.h>
915 #ifdef HAVE_NETINET_IN6_H
916 #include <netinet/in6.h>
918 #ifdef HAVE_SYS_SOCKET_H
919 #include <sys/socket.h>
922 #define _WIN32_WINNT 0x0501
923 #define WIN32_LEAN_AND_MEAN
924 #if defined(_MSC_VER) && (_MSC_VER < 1300)
927 #include <winsock2.h>
928 #include <ws2tcpip.h>
932 AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
933 [#ifdef HAVE_SYS_TYPES_H
934 #include <sys/types.h>
936 #ifdef HAVE_NETINET_IN_H
937 #include <netinet/in.h>
939 #ifdef HAVE_NETINET_IN6_H
940 #include <netinet/in6.h>
942 #ifdef HAVE_SYS_SOCKET_H
943 #include <sys/socket.h>
946 #define _WIN32_WINNT 0x0501
947 #define WIN32_LEAN_AND_MEAN
948 #if defined(_MSC_VER) && (_MSC_VER < 1300)
951 #include <winsock2.h>
952 #include <ws2tcpip.h>
957 AC_CHECK_TYPES([rlim_t], , ,
958 [#ifdef HAVE_SYS_TYPES_H
959 #include <sys/types.h>
961 #ifdef HAVE_SYS_TIME_H
962 #include <sys/time.h>
964 #ifdef HAVE_SYS_RESOURCE_H
965 #include <sys/resource.h>
969 AX_CHECK_SIGN([time_t],
970 [ AC_DEFINE(TIME_T_IS_SIGNED, 1, [Define if time_t is signed]) ],
972 #ifdef HAVE_SYS_TYPES_H
973 #include <sys/types.h>
975 #ifdef HAVE_SYS_TIME_H
976 #include <sys/time.h>
983 if test "$ax_cv_decl_time_t_signed" = no; then
984 AC_MSG_WARN([You have an unsigned time_t; some things will probably break. Please tell the Tor developers about your interesting platform.])
987 AX_CHECK_SIGN([size_t],
988 [ tor_cv_size_t_signed=yes ],
989 [ tor_cv_size_t_signed=no ], [
990 #ifdef HAVE_SYS_TYPES_H
991 #include <sys/types.h>
995 if test "$ax_cv_decl_size_t_signed" = yes; then
996 AC_MSG_ERROR([You have a signed size_t; that's grossly nonconformant.])
999 AX_CHECK_SIGN([enum always],
1000 [ AC_DEFINE(ENUM_VALS_ARE_SIGNED, 1, [Define if enum is always signed]) ],
1002 enum always { AAA, BBB, CCC };
1005 AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
1006 #ifdef HAVE_SYS_SOCKET_H
1007 #include <sys/socket.h>
1011 # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
1013 AC_CHECK_SIZEOF(cell_t)
1015 # Now make sure that NULL can be represented as zero bytes.
1016 AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
1017 [AC_RUN_IFELSE([AC_LANG_SOURCE(
1018 [[#include <stdlib.h>
1021 #ifdef HAVE_STDDEF_H
1024 int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
1025 return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
1026 [tor_cv_null_is_zero=yes],
1027 [tor_cv_null_is_zero=no],
1028 [tor_cv_null_is_zero=cross])])
1030 if test "$tor_cv_null_is_zero" = cross ; then
1031 # Cross-compiling; let's hope that the target isn't raving mad.
1032 AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
1035 if test "$tor_cv_null_is_zero" != no; then
1036 AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
1037 [Define to 1 iff memset(0) sets pointers to NULL])
1040 AC_CACHE_CHECK([whether memset(0) sets doubles to 0.0], tor_cv_dbl0_is_zero,
1041 [AC_RUN_IFELSE([AC_LANG_SOURCE(
1042 [[#include <stdlib.h>
1045 #ifdef HAVE_STDDEF_H
1048 int main () { double d1,d2; d1=0; memset(&d2,0,sizeof(d2));
1049 return memcmp(&d1,&d2,sizeof(d1))?1:0; }]])],
1050 [tor_cv_dbl0_is_zero=yes],
1051 [tor_cv_dbl0_is_zero=no],
1052 [tor_cv_dbl0_is_zero=cross])])
1054 if test "$tor_cv_dbl0_is_zero" = cross ; then
1055 # Cross-compiling; let's hope that the target isn't raving mad.
1056 AC_MSG_NOTICE([Cross-compiling: we'll assume that 0.0 can be represented as a sequence of 0-valued bytes.])
1059 if test "$tor_cv_dbl0_is_zero" != no; then
1060 AC_DEFINE([DOUBLE_0_REP_IS_ZERO_BYTES], 1,
1061 [Define to 1 iff memset(0) sets doubles to 0.0])
1064 # And what happens when we malloc zero?
1065 AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
1066 [AC_RUN_IFELSE([AC_LANG_SOURCE(
1067 [[#include <stdlib.h>
1070 #ifdef HAVE_STDDEF_H
1073 int main () { return malloc(0)?0:1; }]])],
1074 [tor_cv_malloc_zero_works=yes],
1075 [tor_cv_malloc_zero_works=no],
1076 [tor_cv_malloc_zero_works=cross])])
1078 if test "$tor_cv_malloc_zero_works" = cross; then
1079 # Cross-compiling; let's hope that the target isn't raving mad.
1080 AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
1083 if test "$tor_cv_malloc_zero_works" = yes; then
1084 AC_DEFINE([MALLOC_ZERO_WORKS], 1,
1085 [Define to 1 iff malloc(0) returns a pointer])
1088 # whether we seem to be in a 2s-complement world.
1089 AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
1090 [AC_RUN_IFELSE([AC_LANG_SOURCE(
1091 [[int main () { int problem = ((-99) != (~99)+1);
1092 return problem ? 1 : 0; }]])],
1093 [tor_cv_twos_complement=yes],
1094 [tor_cv_twos_complement=no],
1095 [tor_cv_twos_complement=cross])])
1097 if test "$tor_cv_twos_complement" = cross ; then
1098 # Cross-compiling; let's hope that the target isn't raving mad.
1099 AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
1102 if test "$tor_cv_twos_complement" != no ; then
1103 AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
1104 [Define to 1 iff we represent negative integers with two's complement])
1107 # What does shifting a negative value do?
1108 AC_CACHE_CHECK([whether right-shift on negative values does sign-extension], tor_cv_sign_extend,
1109 [AC_RUN_IFELSE([AC_LANG_SOURCE(
1110 [[int main () { int okay = (-60 >> 8) == -1; return okay ? 0 : 1; }]])],
1111 [tor_cv_sign_extend=yes],
1112 [tor_cv_sign_extend=no],
1113 [tor_cv_sign_extend=cross])])
1115 if test "$tor_cv_sign_extend" = cross ; then
1116 # Cross-compiling; let's hope that the target isn't raving mad.
1117 AC_MSG_NOTICE([Cross-compiling: we'll assume that right-shifting negative integers causes sign-extension])
1120 if test "$tor_cv_sign_extend" != no ; then
1121 AC_DEFINE([RSHIFT_DOES_SIGN_EXTEND], 1,
1122 [Define to 1 iff right-shifting a negative value performs sign-extension])
1125 # Whether we should use the dmalloc memory allocation debugging library.
1126 AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
1127 AC_ARG_WITH(dmalloc,
1128 [ --with-dmalloc Use debug memory allocation library. ],
1129 [if [[ "$withval" = "yes" ]]; then
1135 fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
1138 if [[ $dmalloc -eq 1 ]]; then
1139 AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
1140 AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
1141 AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
1142 AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
1143 AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
1146 AC_ARG_WITH(tcmalloc,
1147 [ --with-tcmalloc Use tcmalloc memory allocation library. ],
1148 [ tcmalloc=yes ], [ tcmalloc=no ])
1150 if test x$tcmalloc = xyes ; then
1151 LDFLAGS="-ltcmalloc $LDFLAGS"
1154 using_custom_malloc=no
1155 if test x$enable_openbsd_malloc = xyes ; then
1156 using_custom_malloc=yes
1158 if test x$tcmalloc = xyes ; then
1159 using_custom_malloc=yes
1161 if test $using_custom_malloc = no ; then
1162 AC_CHECK_FUNCS(mallinfo)
1165 # By default, we're going to assume we don't have mlockall()
1166 # bionic and other platforms have various broken mlockall subsystems.
1167 # Some systems don't have a working mlockall, some aren't linkable,
1168 # and some have it but don't declare it.
1169 AC_CHECK_FUNCS(mlockall)
1170 AC_CHECK_DECLS([mlockall], , , [
1171 #ifdef HAVE_SYS_MMAN_H
1172 #include <sys/mman.h>
1175 # Allow user to specify an alternate syslog facility
1176 AC_ARG_WITH(syslog-facility,
1177 [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
1178 syslog_facility="$withval", syslog_facility="LOG_DAEMON")
1179 AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
1180 AC_SUBST(LOGFACILITY)
1182 # Check if we have getresuid and getresgid
1183 AC_CHECK_FUNCS(getresuid getresgid)
1185 # Check for gethostbyname_r in all its glorious incompatible versions.
1186 # (This logic is based on that in Python's configure.in)
1187 AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
1188 [Define this if you have any gethostbyname_r()])
1190 AC_CHECK_FUNC(gethostbyname_r, [
1191 AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
1193 CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
1194 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
1198 struct hostent *h1, *h2;
1200 (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
1202 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
1203 AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
1204 [Define this if gethostbyname_r takes 6 arguments])
1213 (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
1215 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
1216 AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
1217 [Define this if gethostbyname_r takes 5 arguments])
1225 struct hostent_data hd;
1226 (void) gethostbyname_r(cp1,h1,&hd);
1228 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
1229 AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
1230 [Define this if gethostbyname_r takes 3 arguments])
1240 AC_CACHE_CHECK([whether the C compiler supports __func__],
1241 tor_cv_have_func_macro,
1242 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
1244 int main(int c, char **v) { puts(__func__); }])],
1245 tor_cv_have_func_macro=yes,
1246 tor_cv_have_func_macro=no))
1248 AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
1249 tor_cv_have_FUNC_macro,
1250 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
1252 int main(int c, char **v) { puts(__FUNC__); }])],
1253 tor_cv_have_FUNC_macro=yes,
1254 tor_cv_have_FUNC_macro=no))
1256 AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
1257 tor_cv_have_FUNCTION_macro,
1258 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
1260 int main(int c, char **v) { puts(__FUNCTION__); }])],
1261 tor_cv_have_FUNCTION_macro=yes,
1262 tor_cv_have_FUNCTION_macro=no))
1264 AC_CACHE_CHECK([whether we have extern char **environ already declared],
1265 tor_cv_have_environ_declared,
1266 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
1267 /* We define _GNU_SOURCE here because it is also defined in compat.c.
1268 * Without it environ doesn't get declared. */
1270 #ifdef HAVE_UNISTD_H
1274 int main(int c, char **v) { char **t = environ; }])],
1275 tor_cv_have_environ_declared=yes,
1276 tor_cv_have_environ_declared=no))
1278 if test "$tor_cv_have_func_macro" = 'yes'; then
1279 AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
1282 if test "$tor_cv_have_FUNC_macro" = 'yes'; then
1283 AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
1286 if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
1287 AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
1288 [Defined if the compiler supports __FUNCTION__])
1291 if test "$tor_cv_have_environ_declared" = 'yes'; then
1292 AC_DEFINE(HAVE_EXTERN_ENVIRON_DECLARED, 1,
1293 [Defined if we have extern char **environ already declared])
1296 # $prefix stores the value of the --prefix command line option, or
1297 # NONE if the option wasn't set. In the case that it wasn't set, make
1298 # it be the default, so that we can use it to expand directories now.
1299 if test "x$prefix" = "xNONE"; then
1300 prefix=$ac_default_prefix
1303 # and similarly for $exec_prefix
1304 if test "x$exec_prefix" = "xNONE"; then
1308 if test "x$BUILDDIR" = "x"; then
1312 AH_TEMPLATE([BUILDDIR],[tor's build directory])
1313 AC_DEFINE_UNQUOTED(BUILDDIR,"$BUILDDIR")
1315 if test "x$CONFDIR" = "x"; then
1316 CONFDIR=`eval echo $sysconfdir/tor`
1319 AH_TEMPLATE([CONFDIR],[tor's configuration directory])
1320 AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
1322 BINDIR=`eval echo $bindir`
1324 LOCALSTATEDIR=`eval echo $localstatedir`
1325 AC_SUBST(LOCALSTATEDIR)
1327 if test "$bwin32" = true; then
1328 # Test if the linker supports the --nxcompat and --dynamicbase options
1330 save_LDFLAGS="$LDFLAGS"
1331 LDFLAGS="-Wl,--nxcompat -Wl,--dynamicbase"
1332 AC_MSG_CHECKING([whether the linker supports DllCharacteristics])
1333 AC_LINK_IFELSE([AC_LANG_PROGRAM([])],
1334 [AC_MSG_RESULT([yes])]
1335 [save_LDFLAGS="$save_LDFLAGS $LDFLAGS"],
1336 [AC_MSG_RESULT([no])]
1338 LDFLAGS="$save_LDFLAGS"
1341 # Set CFLAGS _after_ all the above checks, since our warnings are stricter
1342 # than autoconf's macros like.
1343 if test "$GCC" = yes; then
1344 # Disable GCC's strict aliasing checks. They are an hours-to-debug
1345 # accident waiting to happen.
1346 CFLAGS="$CFLAGS -Wall -fno-strict-aliasing"
1348 # Autoconf sets -g -O2 by default. Override optimization level
1349 # for non-gcc compilers
1351 enable_gcc_warnings=no
1352 enable_gcc_warnings_advisory=no
1355 # OS X Lion started deprecating the system openssl. Let's just disable
1356 # all deprecation warnings on OS X. Also, to potentially make the binary
1357 # a little smaller, let's enable dead_strip.
1361 CFLAGS="$CFLAGS -Wno-deprecated-declarations"
1362 LDFLAGS="$LDFLAGS -dead_strip" ;;
1365 # Add some more warnings which we use in development but not in the
1366 # released versions. (Some relevant gcc versions can't handle these.)
1367 if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
1369 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
1370 #if !defined(__GNUC__) || (__GNUC__ < 4)
1372 #endif])], have_gcc4=yes, have_gcc4=no)
1374 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
1375 #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
1377 #endif])], have_gcc42=yes, have_gcc42=no)
1379 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
1380 #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
1382 #endif])], have_gcc43=yes, have_gcc43=no)
1384 save_CFLAGS="$CFLAGS"
1385 CFLAGS="$CFLAGS -Wshorten-64-to-32"
1386 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], have_shorten64_flag=yes,
1387 have_shorten64_flag=no)
1388 CFLAGS="$save_CFLAGS"
1391 *-*-openbsd* | *-*-bitrig*)
1392 # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default.
1393 # That's fine, except that the headers don't pass -Wredundant-decls.
1394 # Therefore, let's disable -Wsystem-headers when we're building
1395 # with maximal warnings on OpenBSD.
1396 CFLAGS="$CFLAGS -Wno-system-headers" ;;
1399 CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith"
1400 CFLAGS="$CFLAGS -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings"
1401 CFLAGS="$CFLAGS -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2"
1402 CFLAGS="$CFLAGS -Wwrite-strings -Wmissing-declarations -Wredundant-decls"
1403 CFLAGS="$CFLAGS -Wnested-externs -Wbad-function-cast -Wswitch-enum"
1405 if test x$enable_gcc_warnings = xyes; then
1406 CFLAGS="$CFLAGS -Werror"
1409 # Disabled, so we can use mallinfo(): -Waggregate-return
1411 if test x$have_gcc4 = xyes ; then
1412 # These warnings break gcc 3.3.5 and work on gcc 4.0.2
1413 CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
1416 if test x$have_gcc42 = xyes ; then
1417 # These warnings break gcc 4.0.2 and work on gcc 4.2
1418 # XXXX020 See if any of these work with earlier versions.
1419 CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wstrict-overflow=1"
1421 # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
1424 if test x$have_gcc42 = xyes && test x$have_clang = xno; then
1425 # These warnings break gcc 4.0.2 and clang, but work on gcc 4.2
1426 CFLAGS="$CFLAGS -Wnormalized=id -Woverride-init"
1429 if test x$have_gcc43 = xyes ; then
1430 # These warnings break gcc 4.2 and work on gcc 4.3
1431 # XXXX020 See if any of these work with earlier versions.
1432 CFLAGS="$CFLAGS -Wextra -Warray-bounds"
1435 if test x$have_shorten64_flag = xyes ; then
1436 CFLAGS="$CFLAGS -Wshorten-64-to-32"
1439 ##This will break the world on some 64-bit architectures
1440 # CFLAGS="$CFLAGS -Winline"
1445 CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
1451 contrib/tor.logrotate
1455 src/config/torrc.sample
1460 if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
1461 ./contrib/updateVersions.pl