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],[0.2.4.11-alpha])
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)));
667 uint64_t a = ((uint64_t)2000000000) * 1000000000;
668 uint64_t b = ((uint64_t)1234567890) << 24;
669 uint128_t c = ((uint128_t)a) * b;
670 return ((uint64_t)(c>>96)) == 522859 &&
671 ((uint64_t)(c>>64))&0xffffffffL == 3604448702L &&
672 ((uint64_t)(c>>32))&0xffffffffL == 2351960064L &&
673 ((uint64_t)(c))&0xffffffffL == 0;
675 [tor_cv_can_use_curve25519_donna_c64=yes],
676 [tor_cv_can_use_curve25519_donna_c64=no],
678 [AC_LANG_PROGRAM([dnl
680 typedef unsigned uint128_t __attribute__((mode(TI)));
682 uint64_t a = ((uint64_t)2000000000) * 1000000000;
683 uint64_t b = ((uint64_t)1234567890) << 24;
684 uint128_t c = ((uint128_t)a) * b;
685 return ((uint64_t)(c>>96)) == 522859 &&
686 ((uint64_t)(c>>64))&0xffffffffL == 3604448702L &&
687 ((uint64_t)(c>>32))&0xffffffffL == 2351960064L &&
688 ((uint64_t)(c))&0xffffffffL == 0;
690 [tor_cv_can_use_curve25519_donna_c64=cross],
691 [tor_cv_can_use_curve25519_donna_c64=no])])])
693 AC_CHECK_HEADERS([crypto_scalarmult_curve25519.h \
694 nacl/crypto_scalarmult_curve25519.h])
696 AC_CACHE_CHECK([whether we can use curve25519 from nacl],
697 tor_cv_can_use_curve25519_nacl,
698 [tor_saved_LIBS="$LIBS"
701 [AC_LANG_PROGRAM([dnl
702 #ifdef HAVE_CRYPTO_SCALARMULT_CURVE25519_H
703 #include <crypto_scalarmult_curve25519.h>
704 #elif defined(HAVE_NACL_CRYPTO_SCALARMULT_CURVE25519_H)
705 #include <nacl/crypto_scalarmult_curve25519.h>
707 #ifdef crypto_scalarmult_curve25519_ref_BYTES
708 #error Hey, this is the reference implementation!
711 unsigned char *a, *b, *c; crypto_scalarmult_curve25519(a,b,c);
712 ])], [tor_cv_can_use_curve25519_nacl=yes],
713 [tor_cv_can_use_curve25519_nacl=no])
714 LIBS="$tor_saved_LIBS" ])
716 dnl Okay, now we need to figure out which one to actually use. Fall back
717 dnl to curve25519-donna.c
719 if test x$tor_cv_can_use_curve25519_donna_c64 != xno; then
720 build_curve25519_donna_c64=yes
721 use_curve25519_donna=yes
722 elif test x$tor_cv_can_use_curve25519_nacl = xyes; then
723 use_curve25519_nacl=yes
724 CURVE25519_LIBS=-lnacl
726 build_curve25519_donna=yes
727 use_curve25519_donna=yes
729 have_a_curve25519=yes
732 if test x$have_a_curve25519 = xyes; then
733 AC_DEFINE(CURVE25519_ENABLED, 1,
734 [Defined if we have a curve25519 implementation])
736 if test x$use_curve25519_donna = xyes; then
737 AC_DEFINE(USE_CURVE25519_DONNA, 1,
738 [Defined if we should use an internal curve25519_donna{,_c64} implementation])
740 if test x$use_curve25519_nacl = xyes; then
741 AC_DEFINE(USE_CURVE25519_NACL, 1,
742 [Defined if we should use a curve25519 from nacl])
744 AM_CONDITIONAL(BUILD_CURVE25519_DONNA, test x$build_curve25519_donna = xyes)
745 AM_CONDITIONAL(BUILD_CURVE25519_DONNA_C64, test x$build_curve25519_donna_c64 = xyes)
746 AM_CONDITIONAL(CURVE25519_ENABLED, test x$have_a_curve25519 = xyes)
747 AC_SUBST(CURVE25519_LIBS)
749 dnl Make sure to enable support for large off_t if available.
764 , , 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.))
766 dnl These headers are not essential
803 AC_CHECK_HEADERS(sys/param.h)
805 AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
806 [#ifdef HAVE_SYS_TYPES_H
807 #include <sys/types.h>
809 #ifdef HAVE_SYS_SOCKET_H
810 #include <sys/socket.h>
812 AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
813 [#ifdef HAVE_SYS_TYPES_H
814 #include <sys/types.h>
816 #ifdef HAVE_SYS_SOCKET_H
817 #include <sys/socket.h>
822 AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
823 linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
824 [#ifdef HAVE_SYS_TYPES_H
825 #include <sys/types.h>
827 #ifdef HAVE_SYS_SOCKET_H
828 #include <sys/socket.h>
833 #ifdef HAVE_LINUX_TYPES_H
834 #include <linux/types.h>
836 #ifdef HAVE_NETINET_IN6_H
837 #include <netinet/in6.h>
839 #ifdef HAVE_NETINET_IN_H
840 #include <netinet/in.h>
843 if test x$transparent = xtrue ; then
845 if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
848 if test x$linux_netfilter_ipv4 = x1 ; then
851 if test x$transparent_ok = x1 ; then
852 AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
854 *-*-openbsd* | *-*-bitrig*)
855 AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
858 AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
862 AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
863 [#ifdef HAVE_SYS_TYPES_H
864 #include <sys/types.h>
866 #ifdef HAVE_SYS_TIME_H
867 #include <sys/time.h>
870 dnl In case we aren't given a working stdint.h, we'll need to grow our own.
873 AC_CHECK_SIZEOF(int8_t)
874 AC_CHECK_SIZEOF(int16_t)
875 AC_CHECK_SIZEOF(int32_t)
876 AC_CHECK_SIZEOF(int64_t)
877 AC_CHECK_SIZEOF(uint8_t)
878 AC_CHECK_SIZEOF(uint16_t)
879 AC_CHECK_SIZEOF(uint32_t)
880 AC_CHECK_SIZEOF(uint64_t)
881 AC_CHECK_SIZEOF(intptr_t)
882 AC_CHECK_SIZEOF(uintptr_t)
884 dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
886 AC_CHECK_SIZEOF(char)
887 AC_CHECK_SIZEOF(short)
889 AC_CHECK_SIZEOF(long)
890 AC_CHECK_SIZEOF(long long)
891 AC_CHECK_SIZEOF(__int64)
892 AC_CHECK_SIZEOF(void *)
893 AC_CHECK_SIZEOF(time_t)
894 AC_CHECK_SIZEOF(size_t)
895 AC_CHECK_SIZEOF(pid_t)
897 AC_CHECK_TYPES([uint, u_char, ssize_t])
899 dnl used to include sockaddr_storage, but everybody has that.
900 AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
901 [#ifdef HAVE_SYS_TYPES_H
902 #include <sys/types.h>
904 #ifdef HAVE_NETINET_IN_H
905 #include <netinet/in.h>
907 #ifdef HAVE_NETINET_IN6_H
908 #include <netinet/in6.h>
910 #ifdef HAVE_SYS_SOCKET_H
911 #include <sys/socket.h>
914 #define _WIN32_WINNT 0x0501
915 #define WIN32_LEAN_AND_MEAN
916 #if defined(_MSC_VER) && (_MSC_VER < 1300)
919 #include <winsock2.h>
920 #include <ws2tcpip.h>
924 AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
925 [#ifdef HAVE_SYS_TYPES_H
926 #include <sys/types.h>
928 #ifdef HAVE_NETINET_IN_H
929 #include <netinet/in.h>
931 #ifdef HAVE_NETINET_IN6_H
932 #include <netinet/in6.h>
934 #ifdef HAVE_SYS_SOCKET_H
935 #include <sys/socket.h>
938 #define _WIN32_WINNT 0x0501
939 #define WIN32_LEAN_AND_MEAN
940 #if defined(_MSC_VER) && (_MSC_VER < 1300)
943 #include <winsock2.h>
944 #include <ws2tcpip.h>
949 AC_CHECK_TYPES([rlim_t], , ,
950 [#ifdef HAVE_SYS_TYPES_H
951 #include <sys/types.h>
953 #ifdef HAVE_SYS_TIME_H
954 #include <sys/time.h>
956 #ifdef HAVE_SYS_RESOURCE_H
957 #include <sys/resource.h>
961 AX_CHECK_SIGN([time_t],
962 [ AC_DEFINE(TIME_T_IS_SIGNED, 1, [Define if time_t is signed]) ],
964 #ifdef HAVE_SYS_TYPES_H
965 #include <sys/types.h>
967 #ifdef HAVE_SYS_TIME_H
968 #include <sys/time.h>
975 AX_CHECK_SIGN([size_t],
976 [ tor_cv_size_t_signed=yes ],
977 [ tor_cv_size_t_signed=no ], [
978 #ifdef HAVE_SYS_TYPES_H
979 #include <sys/types.h>
983 if test "$tor_cv_size_t_signed" = yes; then
984 AC_MSG_ERROR([You have a signed size_t; that's grossly nonconformant.])
987 AX_CHECK_SIGN([enum always],
988 [ AC_DEFINE(ENUM_VALS_ARE_SIGNED, 1, [Define if enum is always signed]) ],
990 enum always { AAA, BBB, CCC };
993 AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
994 #ifdef HAVE_SYS_SOCKET_H
995 #include <sys/socket.h>
999 # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
1001 AC_CHECK_SIZEOF(cell_t)
1003 # Now make sure that NULL can be represented as zero bytes.
1004 AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
1005 [AC_RUN_IFELSE([AC_LANG_SOURCE(
1006 [[#include <stdlib.h>
1009 #ifdef HAVE_STDDEF_H
1012 int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
1013 return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
1014 [tor_cv_null_is_zero=yes],
1015 [tor_cv_null_is_zero=no],
1016 [tor_cv_null_is_zero=cross])])
1018 if test "$tor_cv_null_is_zero" = cross ; then
1019 # Cross-compiling; let's hope that the target isn't raving mad.
1020 AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
1023 if test "$tor_cv_null_is_zero" != no; then
1024 AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
1025 [Define to 1 iff memset(0) sets pointers to NULL])
1028 AC_CACHE_CHECK([whether memset(0) sets doubles to 0.0], tor_cv_dbl0_is_zero,
1029 [AC_RUN_IFELSE([AC_LANG_SOURCE(
1030 [[#include <stdlib.h>
1033 #ifdef HAVE_STDDEF_H
1036 int main () { double d1,d2; d1=0; memset(&d2,0,sizeof(d2));
1037 return memcmp(&d1,&d2,sizeof(d1))?1:0; }]])],
1038 [tor_cv_dbl0_is_zero=yes],
1039 [tor_cv_dbl0_is_zero=no],
1040 [tor_cv_dbl0_is_zero=cross])])
1042 if test "$tor_cv_dbl0_is_zero" = cross ; then
1043 # Cross-compiling; let's hope that the target isn't raving mad.
1044 AC_MSG_NOTICE([Cross-compiling: we'll assume that 0.0 can be represented as a sequence of 0-valued bytes.])
1047 if test "$tor_cv_dbl0_is_zero" != no; then
1048 AC_DEFINE([DOUBLE_0_REP_IS_ZERO_BYTES], 1,
1049 [Define to 1 iff memset(0) sets doubles to 0.0])
1052 # And what happens when we malloc zero?
1053 AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
1054 [AC_RUN_IFELSE([AC_LANG_SOURCE(
1055 [[#include <stdlib.h>
1058 #ifdef HAVE_STDDEF_H
1061 int main () { return malloc(0)?0:1; }]])],
1062 [tor_cv_malloc_zero_works=yes],
1063 [tor_cv_malloc_zero_works=no],
1064 [tor_cv_malloc_zero_works=cross])])
1066 if test "$tor_cv_malloc_zero_works" = cross; then
1067 # Cross-compiling; let's hope that the target isn't raving mad.
1068 AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
1071 if test "$tor_cv_malloc_zero_works" = yes; then
1072 AC_DEFINE([MALLOC_ZERO_WORKS], 1,
1073 [Define to 1 iff malloc(0) returns a pointer])
1076 # whether we seem to be in a 2s-complement world.
1077 AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
1078 [AC_RUN_IFELSE([AC_LANG_SOURCE(
1079 [[int main () { int problem = ((-99) != (~99)+1);
1080 return problem ? 1 : 0; }]])],
1081 [tor_cv_twos_complement=yes],
1082 [tor_cv_twos_complement=no],
1083 [tor_cv_twos_complement=cross])])
1085 if test "$tor_cv_twos_complement" = cross ; then
1086 # Cross-compiling; let's hope that the target isn't raving mad.
1087 AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
1090 if test "$tor_cv_twos_complement" != no ; then
1091 AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
1092 [Define to 1 iff we represent negative integers with two's complement])
1095 # What does shifting a negative value do?
1096 AC_CACHE_CHECK([whether right-shift on negative values does sign-extension], tor_cv_sign_extend,
1097 [AC_RUN_IFELSE([AC_LANG_SOURCE(
1098 [[int main () { int okay = (-60 >> 8) == -1; return okay ? 0 : 1; }]])],
1099 [tor_cv_sign_extend=yes],
1100 [tor_cv_sign_extend=no],
1101 [tor_cv_sign_extend=cross])])
1103 if test "$tor_cv_sign_extend" = cross ; then
1104 # Cross-compiling; let's hope that the target isn't raving mad.
1105 AC_MSG_NOTICE([Cross-compiling: we'll assume that right-shifting negative integers causes sign-extension])
1108 if test "$tor_cv_sign_extend" != no ; then
1109 AC_DEFINE([RSHIFT_DOES_SIGN_EXTEND], 1,
1110 [Define to 1 iff right-shifting a negative value performs sign-extension])
1113 # Whether we should use the dmalloc memory allocation debugging library.
1114 AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
1115 AC_ARG_WITH(dmalloc,
1116 [ --with-dmalloc Use debug memory allocation library. ],
1117 [if [[ "$withval" = "yes" ]]; then
1123 fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
1126 if [[ $dmalloc -eq 1 ]]; then
1127 AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
1128 AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
1129 AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
1130 AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
1131 AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
1134 AC_ARG_WITH(tcmalloc,
1135 [ --with-tcmalloc Use tcmalloc memory allocation library. ],
1136 [ tcmalloc=yes ], [ tcmalloc=no ])
1138 if test x$tcmalloc = xyes ; then
1139 LDFLAGS="-ltcmalloc $LDFLAGS"
1142 using_custom_malloc=no
1143 if test x$enable_openbsd_malloc = xyes ; then
1144 using_custom_malloc=yes
1146 if test x$tcmalloc = xyes ; then
1147 using_custom_malloc=yes
1149 if test $using_custom_malloc = no ; then
1150 AC_CHECK_FUNCS(mallinfo)
1153 # By default, we're going to assume we don't have mlockall()
1154 # bionic and other platforms have various broken mlockall subsystems.
1155 # Some systems don't have a working mlockall, some aren't linkable,
1156 # and some have it but don't declare it.
1157 AC_CHECK_FUNCS(mlockall)
1158 AC_CHECK_DECLS([mlockall], , , [
1159 #ifdef HAVE_SYS_MMAN_H
1160 #include <sys/mman.h>
1163 # Allow user to specify an alternate syslog facility
1164 AC_ARG_WITH(syslog-facility,
1165 [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
1166 syslog_facility="$withval", syslog_facility="LOG_DAEMON")
1167 AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
1168 AC_SUBST(LOGFACILITY)
1170 # Check if we have getresuid and getresgid
1171 AC_CHECK_FUNCS(getresuid getresgid)
1173 # Check for gethostbyname_r in all its glorious incompatible versions.
1174 # (This logic is based on that in Python's configure.in)
1175 AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
1176 [Define this if you have any gethostbyname_r()])
1178 AC_CHECK_FUNC(gethostbyname_r, [
1179 AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
1181 CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
1182 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
1186 struct hostent *h1, *h2;
1188 (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
1190 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
1191 AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
1192 [Define this if gethostbyname_r takes 6 arguments])
1201 (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
1203 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
1204 AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
1205 [Define this if gethostbyname_r takes 5 arguments])
1213 struct hostent_data hd;
1214 (void) gethostbyname_r(cp1,h1,&hd);
1216 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
1217 AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
1218 [Define this if gethostbyname_r takes 3 arguments])
1228 AC_CACHE_CHECK([whether the C compiler supports __func__],
1229 tor_cv_have_func_macro,
1230 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
1232 int main(int c, char **v) { puts(__func__); }])],
1233 tor_cv_have_func_macro=yes,
1234 tor_cv_have_func_macro=no))
1236 AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
1237 tor_cv_have_FUNC_macro,
1238 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
1240 int main(int c, char **v) { puts(__FUNC__); }])],
1241 tor_cv_have_FUNC_macro=yes,
1242 tor_cv_have_FUNC_macro=no))
1244 AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
1245 tor_cv_have_FUNCTION_macro,
1246 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
1248 int main(int c, char **v) { puts(__FUNCTION__); }])],
1249 tor_cv_have_FUNCTION_macro=yes,
1250 tor_cv_have_FUNCTION_macro=no))
1252 AC_CACHE_CHECK([whether we have extern char **environ already declared],
1253 tor_cv_have_environ_declared,
1254 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
1255 /* We define _GNU_SOURCE here because it is also defined in compat.c.
1256 * Without it environ doesn't get declared. */
1258 #ifdef HAVE_UNISTD_H
1262 int main(int c, char **v) { char **t = environ; }])],
1263 tor_cv_have_environ_declared=yes,
1264 tor_cv_have_environ_declared=no))
1266 if test "$tor_cv_have_func_macro" = 'yes'; then
1267 AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
1270 if test "$tor_cv_have_FUNC_macro" = 'yes'; then
1271 AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
1274 if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
1275 AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
1276 [Defined if the compiler supports __FUNCTION__])
1279 if test "$tor_cv_have_environ_declared" = 'yes'; then
1280 AC_DEFINE(HAVE_EXTERN_ENVIRON_DECLARED, 1,
1281 [Defined if we have extern char **environ already declared])
1284 # $prefix stores the value of the --prefix command line option, or
1285 # NONE if the option wasn't set. In the case that it wasn't set, make
1286 # it be the default, so that we can use it to expand directories now.
1287 if test "x$prefix" = "xNONE"; then
1288 prefix=$ac_default_prefix
1291 # and similarly for $exec_prefix
1292 if test "x$exec_prefix" = "xNONE"; then
1296 if test "x$BUILDDIR" = "x"; then
1300 AH_TEMPLATE([BUILDDIR],[tor's build directory])
1301 AC_DEFINE_UNQUOTED(BUILDDIR,"$BUILDDIR")
1303 if test "x$CONFDIR" = "x"; then
1304 CONFDIR=`eval echo $sysconfdir/tor`
1307 AH_TEMPLATE([CONFDIR],[tor's configuration directory])
1308 AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
1310 BINDIR=`eval echo $bindir`
1312 LOCALSTATEDIR=`eval echo $localstatedir`
1313 AC_SUBST(LOCALSTATEDIR)
1315 if test "$bwin32" = true; then
1316 # Test if the linker supports the --nxcompat and --dynamicbase options
1318 save_LDFLAGS="$LDFLAGS"
1319 LDFLAGS="-Wl,--nxcompat -Wl,--dynamicbase"
1320 AC_MSG_CHECKING([whether the linker supports DllCharacteristics])
1321 AC_LINK_IFELSE([AC_LANG_PROGRAM([])],
1322 [AC_MSG_RESULT([yes])]
1323 [save_LDFLAGS="$save_LDFLAGS $LDFLAGS"],
1324 [AC_MSG_RESULT([no])]
1326 LDFLAGS="$save_LDFLAGS"
1329 # Set CFLAGS _after_ all the above checks, since our warnings are stricter
1330 # than autoconf's macros like.
1331 if test "$GCC" = yes; then
1332 # Disable GCC's strict aliasing checks. They are an hours-to-debug
1333 # accident waiting to happen.
1334 CFLAGS="$CFLAGS -Wall -fno-strict-aliasing"
1336 # Autoconf sets -g -O2 by default. Override optimization level
1337 # for non-gcc compilers
1339 enable_gcc_warnings=no
1340 enable_gcc_warnings_advisory=no
1343 # OS X Lion started deprecating the system openssl. Let's just disable
1344 # all deprecation warnings on OS X. Also, to potentially make the binary
1345 # a little smaller, let's enable dead_strip.
1349 CFLAGS="$CFLAGS -Wno-deprecated-declarations"
1350 LDFLAGS="$LDFLAGS -dead_strip" ;;
1353 # Add some more warnings which we use in development but not in the
1354 # released versions. (Some relevant gcc versions can't handle these.)
1355 if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
1357 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
1358 #if !defined(__GNUC__) || (__GNUC__ < 4)
1360 #endif])], have_gcc4=yes, have_gcc4=no)
1362 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
1363 #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
1365 #endif])], have_gcc42=yes, have_gcc42=no)
1367 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
1368 #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
1370 #endif])], have_gcc43=yes, have_gcc43=no)
1372 save_CFLAGS="$CFLAGS"
1373 CFLAGS="$CFLAGS -Wshorten-64-to-32"
1374 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], have_shorten64_flag=yes,
1375 have_shorten64_flag=no)
1376 CFLAGS="$save_CFLAGS"
1379 *-*-openbsd* | *-*-bitrig*)
1380 # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default.
1381 # That's fine, except that the headers don't pass -Wredundant-decls.
1382 # Therefore, let's disable -Wsystem-headers when we're building
1383 # with maximal warnings on OpenBSD.
1384 CFLAGS="$CFLAGS -Wno-system-headers" ;;
1387 CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith"
1388 CFLAGS="$CFLAGS -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings"
1389 CFLAGS="$CFLAGS -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2"
1390 CFLAGS="$CFLAGS -Wwrite-strings -Wmissing-declarations -Wredundant-decls"
1391 CFLAGS="$CFLAGS -Wnested-externs -Wbad-function-cast -Wswitch-enum"
1393 if test x$enable_gcc_warnings = xyes; then
1394 CFLAGS="$CFLAGS -Werror"
1397 # Disabled, so we can use mallinfo(): -Waggregate-return
1399 if test x$have_gcc4 = xyes ; then
1400 # These warnings break gcc 3.3.5 and work on gcc 4.0.2
1401 CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
1404 if test x$have_gcc42 = xyes ; then
1405 # These warnings break gcc 4.0.2 and work on gcc 4.2
1406 # XXXX020 See if any of these work with earlier versions.
1407 CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wstrict-overflow=1"
1409 # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
1412 if test x$have_gcc42 = xyes && test x$have_clang = xno; then
1413 # These warnings break gcc 4.0.2 and clang, but work on gcc 4.2
1414 CFLAGS="$CFLAGS -Wnormalized=id -Woverride-init"
1417 if test x$have_gcc43 = xyes ; then
1418 # These warnings break gcc 4.2 and work on gcc 4.3
1419 # XXXX020 See if any of these work with earlier versions.
1420 CFLAGS="$CFLAGS -Wextra -Warray-bounds"
1423 if test x$have_shorten64_flag = xyes ; then
1424 CFLAGS="$CFLAGS -Wshorten-64-to-32"
1427 ##This will break the world on some 64-bit architectures
1428 # CFLAGS="$CFLAGS -Winline"
1433 CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
1439 contrib/tor.logrotate
1443 src/config/torrc.sample
1448 if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
1449 ./contrib/updateVersions.pl