1 dnl Copyright (c) 2001-2004, Roger Dingledine
2 dnl Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson
3 dnl Copyright (c) 2007-2008, The Tor Project, Inc.
4 dnl See LICENSE for licensing information
7 AM_INIT_AUTOMAKE(tor, 0.2.2.34-dev)
8 AM_CONFIG_HEADER(orconfig.h)
12 if test -f /etc/redhat-release ; then
13 if test -f /usr/kerberos/include ; then
14 CPPFLAGS="$CPPFLAGS -I/usr/kerberos/include"
18 # Not a no-op; we want to make sure that CPPFLAGS is set before we use
19 # the += operator on it in src/or/Makefile.am
20 CPPFLAGS="$CPPFLAGS -I\${top_srcdir}/src/common"
22 #XXXX020 We should make these enabled or not, before 0.2.0.x-final
23 AC_ARG_ENABLE(buf-freelists,
24 AS_HELP_STRING(--disable-buf-freelists, disable freelists for buffer RAM))
25 AC_ARG_ENABLE(openbsd-malloc,
26 AS_HELP_STRING(--enable-openbsd-malloc, Use malloc code from openbsd. Linux only))
27 AC_ARG_ENABLE(instrument-downloads,
28 AS_HELP_STRING(--enable-instrument-downloads, Instrument downloads of directory resources etc.))
29 AC_ARG_ENABLE(static-openssl,
30 AS_HELP_STRING(--enable-static-openssl, Link against a static openssl library. Requires --with-openssl-dir))
31 AC_ARG_ENABLE(static-libevent,
32 AS_HELP_STRING(--enable-static-libevent, Link against a static libevent library. Requires --with-libevent-dir))
33 AC_ARG_ENABLE(static-zlib,
34 AS_HELP_STRING(--enable-static-zlib, Link against a static zlib library. Requires --with-zlib-dir))
36 if test x$enable_buf_freelists != xno; then
37 AC_DEFINE(ENABLE_BUF_FREELISTS, 1,
38 [Defined if we try to use freelists for buffer RAM chunks])
40 AM_CONDITIONAL(USE_OPENBSD_MALLOC, test x$enable_openbsd_malloc = xyes)
41 if test x$enable_instrument_downloads = xyes; then
42 AC_DEFINE(INSTRUMENT_DOWNLOADS, 1,
43 [Defined if we want to keep track of how much of each kind of resource we download.])
46 AC_ARG_ENABLE(transparent,
47 AS_HELP_STRING(--disable-transparent, disable transparent proxy support),
48 [case "${enableval}" in
49 yes) transparent=true ;;
50 no) transparent=false ;;
51 *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
52 esac], [transparent=true])
54 AC_ARG_ENABLE(asciidoc,
55 AS_HELP_STRING(--disable-asciidoc, don't use asciidoc (disables building of manpages)),
56 [case "${enableval}" in
59 *) AC_MSG_ERROR(bad value for --disable-asciidoc) ;;
60 esac], [asciidoc=true])
63 AC_ARG_ENABLE(threads,
64 AS_HELP_STRING(--disable-threads, disable multi-threading support))
66 if test x$enable_threads = x; then
69 # Don't try multithreading on solaris -- cpuworkers seem to lock.
70 AC_MSG_NOTICE([You are running Solaris; Sometimes threading makes
71 cpu workers lock up here, so I will disable threads.])
74 enable_threads="yes";;
78 if test "$enable_threads" = "yes"; then
79 AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
84 AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
88 AC_ARG_ENABLE(gcc-warnings,
89 AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
90 AC_ARG_ENABLE(gcc-warnings-advisory,
91 AS_HELP_STRING(--enable-gcc-warnings-advisory, [enable verbose warnings, excluding -Werror]))
93 dnl Adam shostack suggests the following for Windows:
94 dnl -D_FORTIFY_SOURCE=2 -fstack-protector-all
95 dnl Others suggest '/gs /safeseh /nxcompat /dynamicbase' for non-gcc on Windows
96 dnl This requires that we use gcc and that we add -O2 to the CFLAGS.
97 AC_ARG_ENABLE(gcc-hardening,
98 AS_HELP_STRING(--enable-gcc-hardening, enable compiler security checks),
99 [if test x$enableval = xyes; then
100 CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector-all"
101 CFLAGS="$CFLAGS -fwrapv -fPIE -Wstack-protector"
102 CFLAGS="$CFLAGS --param ssp-buffer-size=1"
103 LDFLAGS="$LDFLAGS -pie"
106 dnl Linker hardening options
107 dnl Currently these options are ELF specific - you can't use this with MacOSX
108 AC_ARG_ENABLE(linker-hardening,
109 AS_HELP_STRING(--enable-linker-hardening, enable linker security fixups),
110 [if test x$enableval = xyes; then
111 LDFLAGS="$LDFLAGS -z relro -z now"
114 AC_ARG_ENABLE(local-appdata,
115 AS_HELP_STRING(--enable-local-appdata, default to host local application data paths on Windows))
116 if test "$enable_local_appdata" = "yes"; then
117 AC_DEFINE(ENABLE_LOCAL_APPDATA, 1,
118 [Defined if we default to host local appdata paths on Windows])
121 dnl check for the correct "ar" when cross-compiling
122 AN_MAKEVAR([AR], [AC_PROG_AR])
123 AN_PROGRAM([ar], [AC_PROG_AR])
124 AC_DEFUN([AC_PROG_AR], [AC_CHECK_TOOL([AR], [ar], [ar])])
132 dnl autoconf 2.59 appears not to support AC_PROG_SED
133 AC_CHECK_PROG([SED],[sed],[sed],[/bin/false])
135 dnl check for asciidoc and a2x
136 AC_PATH_PROG([ASCIIDOC], [asciidoc], none)
137 AC_PATH_PROG([A2X], [a2x], none)
139 AM_CONDITIONAL(USE_ASCIIDOC, test x$asciidoc = xtrue)
141 AC_PATH_PROG([SHA1SUM], [sha1sum], none)
142 AC_PATH_PROG([OPENSSL], [openssl], none)
145 AC_ARG_WITH(tor-user,
146 [ --with-tor-user=NAME Specify username for tor daemon ],
154 AC_ARG_WITH(tor-group,
155 [ --with-tor-group=NAME Specify group name for tor daemon ],
163 dnl If WIN32 is defined and non-zero, we are building for win32
164 AC_MSG_CHECKING([for win32])
165 AC_RUN_IFELSE([AC_LANG_SOURCE([
166 int main(int c, char **v) {
177 bwin32=true; AC_MSG_RESULT([yes]),
178 bwin32=false; AC_MSG_RESULT([no]),
179 bwin32=cross; AC_MSG_RESULT([cross])
182 if test "$bwin32" = cross; then
183 AC_MSG_CHECKING([for win32 (cross)])
184 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
186 int main(int c, char **v) {return 0;}
189 int main(int c, char **v) {return x(y);}
192 bwin32=true; AC_MSG_RESULT([yes]),
193 bwin32=false; AC_MSG_RESULT([no]))
196 if test "$bwin32" = true; then
197 AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
199 AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
201 dnl Enable C99 when compiling with MIPSpro
202 AC_MSG_CHECKING([for MIPSpro compiler])
203 AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [
204 #if (defined(__sgi) && defined(_COMPILER_VERSION))
209 bmipspro=false; AC_MSG_RESULT(no),
210 bmipspro=true; AC_MSG_RESULT(yes))
212 if test "$bmipspro" = true; then
213 CFLAGS="$CFLAGS -c99"
218 AC_SEARCH_LIBS(socket, [socket])
219 AC_SEARCH_LIBS(gethostbyname, [nsl])
220 AC_SEARCH_LIBS(dlopen, [dl])
221 AC_SEARCH_LIBS(inet_aton, [resolv])
223 if test "$enable_threads" = "yes"; then
224 AC_SEARCH_LIBS(pthread_create, [pthread])
225 AC_SEARCH_LIBS(pthread_detach, [pthread])
228 dnl -------------------------------------------------------------------
229 dnl Check for functions before libevent, since libevent-1.2 apparently
230 dnl exports strlcpy without defining it in a header.
232 AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit strlcat strlcpy strtoull getaddrinfo localtime_r gmtime_r memmem strtok_r writev readv flock prctl vasprintf lround rint)
234 using_custom_malloc=no
235 if test x$enable_openbsd_malloc = xyes ; then
236 AC_DEFINE(HAVE_MALLOC_GOOD_SIZE, 1, [Defined if we have the malloc_good_size function])
237 using_custom_malloc=yes
239 if test x$tcmalloc = xyes ; then
240 using_custom_malloc=yes
242 if test $using_custom_malloc = no ; then
243 AC_CHECK_FUNCS(mallinfo malloc_good_size malloc_usable_size)
246 if test "$enable_threads" = "yes"; then
247 AC_CHECK_HEADERS(pthread.h)
248 AC_CHECK_FUNCS(pthread_create)
251 dnl ------------------------------------------------------
252 dnl Where do you live, libevent? And how do we call you?
254 if test "$bwin32" = true; then
255 TOR_LIB_WS32=-lws2_32
256 # Some of the cargo-cults recommend -lwsock32 as well, but I don't
257 # think it's actually necessary.
263 AC_SUBST(TOR_LIB_WS32)
264 AC_SUBST(TOR_LIB_GDI)
266 dnl We need to do this before we try our disgusting hack below.
267 AC_CHECK_HEADERS([sys/types.h])
269 dnl This is a disgusting hack so we safely include older libevent headers.
270 AC_CHECK_TYPE(u_int64_t, unsigned long long)
271 AC_CHECK_TYPE(u_int32_t, unsigned long)
272 AC_CHECK_TYPE(u_int16_t, unsigned short)
273 AC_CHECK_TYPE(u_int8_t, unsigned char)
275 tor_libevent_pkg_redhat="libevent"
276 tor_libevent_pkg_debian="libevent-dev"
277 tor_libevent_devpkg_redhat="libevent-devel"
278 tor_libevent_devpkg_debian="libevent-dev"
280 dnl On Gnu/Linux or any place we require it, we'll add librt to the Libevent
281 dnl linking for static builds.
282 STATIC_LIBEVENT_FLAGS=""
283 if test "$enable_static_libevent" = "yes"; then
284 dnl Determine if we have clock_gettime in librt
285 AC_SEARCH_LIBS([clock_gettime], [rt],
287 if test "$have_rt" = yes; then
288 STATIC_LIBEVENT_FLAGS=" -lrt "
292 TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32], [
294 #include <winsock2.h>
297 #include <sys/time.h>
298 #include <sys/types.h>
299 #include <event.h>], [
301 #include <winsock2.h>
303 void exit(int); void *event_init(void);],
306 {WSADATA d; WSAStartup(0x101,&d); }
308 event_init(); exit(0);
309 ], [--with-libevent-dir], [/opt/libevent])
311 dnl Now check for particular libevent functions.
313 save_LDFLAGS="$LDFLAGS"
314 save_CPPFLAGS="$CPPFLAGS"
315 LIBS="-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32 $LIBS"
316 LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
317 CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
318 AC_CHECK_FUNCS(event_get_version event_get_version_number event_get_method event_set_log_callback evdns_set_outgoing_bind_address event_base_loopexit)
319 AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
323 AC_CHECK_HEADERS(event2/event.h event2/dns.h)
326 LDFLAGS="$save_LDFLAGS"
327 CPPFLAGS="$save_CPPFLAGS"
330 AM_CONDITIONAL(USE_EXTERNAL_EVDNS, test x$ac_cv_header_event2_dns_h = xyes)
332 if test "$enable_static_libevent" = "yes"; then
333 if test "$tor_cv_library_libevent_dir" = "(system)"; then
334 AC_MSG_ERROR("You must specify an explicit --with-libevent-dir=x option when using --enable-static-libevent")
336 TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent.a $STATIC_LIBEVENT_FLAGS"
339 TOR_LIBEVENT_LIBS="-levent"
341 AC_SUBST(TOR_LIBEVENT_LIBS)
344 dnl ------------------------------------------------------
345 dnl Where do you live, openssl? And how do we call you?
347 tor_openssl_pkg_redhat="openssl"
348 tor_openssl_pkg_debian="libssl"
349 tor_openssl_devpkg_redhat="openssl-devel"
350 tor_openssl_devpkg_debian="libssl-dev"
352 ALT_openssl_WITHVAL=""
354 [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
356 if test "x$withval" != xno && test "x$withval" != "x" ; then
357 ALT_openssl_WITHVAL="$withval"
361 TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
362 [#include <openssl/rand.h>],
363 [void RAND_add(const void *buf, int num, double entropy);],
364 [RAND_add((void*)0,0,0); exit(0);], [],
365 [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
367 dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
369 echo "tor_cv_library_openssl_dir is $tor_cv_library_openssl_dir"
370 if test "$enable_static_openssl" = "yes"; then
371 if test "$tor_cv_library_openssl_dir" = "(system)"; then
372 AC_MSG_ERROR("You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl")
374 TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a"
377 TOR_OPENSSL_LIBS="-lssl -lcrypto"
379 AC_SUBST(TOR_OPENSSL_LIBS)
381 dnl ------------------------------------------------------
382 dnl Where do you live, zlib? And how do we call you?
384 tor_zlib_pkg_redhat="zlib"
385 tor_zlib_pkg_debian="zlib1g"
386 tor_zlib_devpkg_redhat="zlib-devel"
387 tor_zlib_devpkg_debian="zlib1g-dev"
389 TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
391 [const char * zlibVersion(void);],
392 [zlibVersion(); exit(0);], [--with-zlib-dir],
395 if test "$enable_static_zlib" = "yes"; then
396 if test "$tor_cv_library_zlib_dir" = "(system)"; then
397 AC_MSG_ERROR("You must specify an explicit --with-zlib-dir=x option when
398 using --enable-static-zlib")
400 TOR_ZLIB_LIBS="$TOR_LIBDIR_zlib/libz.a"
401 echo "$TOR_LIBDIR_zlib/libz.a"
406 AC_SUBST(TOR_ZLIB_LIBS)
408 dnl Make sure to enable support for large off_t if available.
412 AC_CHECK_HEADERS(unistd.h string.h signal.h sys/stat.h sys/types.h fcntl.h sys/fcntl.h sys/time.h errno.h assert.h time.h, , AC_MSG_WARN(Some headers were not found, compilation may fail. If compilation succeeds, please send your orconfig.h to the developers so we can fix this warning.))
414 AC_CHECK_HEADERS(netdb.h sys/ioctl.h sys/socket.h arpa/inet.h netinet/in.h pwd.h grp.h sys/un.h sys/uio.h)
416 dnl These headers are not essential
418 AC_CHECK_HEADERS(stdint.h sys/types.h inttypes.h sys/param.h sys/wait.h limits.h sys/limits.h netinet/in.h arpa/inet.h machine/limits.h syslog.h sys/time.h sys/resource.h inttypes.h utime.h sys/utime.h sys/mman.h netinet/in6.h malloc.h sys/syslimits.h malloc/malloc.h linux/types.h sys/file.h malloc_np.h sys/prctl.h)
420 TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
421 [#ifdef HAVE_MALLOC_H
424 #ifdef HAVE_MALLOC_MALLOC_H
425 #include <malloc/malloc.h>
428 AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
429 [#ifdef HAVE_SYS_TYPES_H
430 #include <sys/types.h>
432 #ifdef HAVE_SYS_SOCKET_H
433 #include <sys/socket.h>
435 AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
436 [#ifdef HAVE_SYS_TYPES_H
437 #include <sys/types.h>
439 #ifdef HAVE_SYS_SOCKET_H
440 #include <sys/socket.h>
445 AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
446 linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
447 [#ifdef HAVE_SYS_TYPES_H
448 #include <sys/types.h>
450 #ifdef HAVE_SYS_SOCKET_H
451 #include <sys/socket.h>
456 #ifdef HAVE_LINUX_TYPES_H
457 #include <linux/types.h>
459 #ifdef HAVE_NETINET_IN6_H
460 #include <netinet/in6.h>
462 #ifdef HAVE_NETINET_IN_H
463 #include <netinet/in.h>
466 if test x$transparent = xtrue ; then
468 if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
471 if test x$linux_netfilter_ipv4 = x1 ; then
474 if test x$transparent_ok = x1 ; then
475 AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
478 AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
481 AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
485 AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
486 [#ifdef HAVE_SYS_TYPES_H
487 #include <sys/types.h>
489 #ifdef HAVE_SYS_TIME_H
490 #include <sys/time.h>
493 dnl In case we aren't given a working stdint.h, we'll need to grow our own.
496 AC_CHECK_SIZEOF(int8_t)
497 AC_CHECK_SIZEOF(int16_t)
498 AC_CHECK_SIZEOF(int32_t)
499 AC_CHECK_SIZEOF(int64_t)
500 AC_CHECK_SIZEOF(uint8_t)
501 AC_CHECK_SIZEOF(uint16_t)
502 AC_CHECK_SIZEOF(uint32_t)
503 AC_CHECK_SIZEOF(uint64_t)
504 AC_CHECK_SIZEOF(intptr_t)
505 AC_CHECK_SIZEOF(uintptr_t)
507 dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
509 AC_CHECK_SIZEOF(char)
510 AC_CHECK_SIZEOF(short)
512 AC_CHECK_SIZEOF(long)
513 AC_CHECK_SIZEOF(long long)
514 AC_CHECK_SIZEOF(__int64)
515 AC_CHECK_SIZEOF(void *)
516 AC_CHECK_SIZEOF(time_t)
517 AC_CHECK_SIZEOF(size_t)
519 AC_CHECK_TYPES([uint, u_char, ssize_t])
521 dnl used to include sockaddr_storage, but everybody has that.
522 AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
523 [#ifdef HAVE_SYS_TYPES_H
524 #include <sys/types.h>
526 #ifdef HAVE_NETINET_IN_H
527 #include <netinet/in.h>
529 #ifdef HAVE_NETINET_IN6_H
530 #include <netinet/in6.h>
532 #ifdef HAVE_SYS_SOCKET_H
533 #include <sys/socket.h>
536 #define WIN32_WINNT 0x400
537 #define _WIN32_WINNT 0x400
538 #define WIN32_LEAN_AND_MEAN
539 #if defined(_MSC_VER) && (_MSC_VER < 1300)
542 #include <winsock2.h>
543 #include <ws2tcpip.h>
547 AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
548 [#ifdef HAVE_SYS_TYPES_H
549 #include <sys/types.h>
551 #ifdef HAVE_NETINET_IN_H
552 #include <netinet/in.h>
554 #ifdef HAVE_NETINET_IN6_H
555 #include <netinet/in6.h>
557 #ifdef HAVE_SYS_SOCKET_H
558 #include <sys/socket.h>
561 #define WIN32_WINNT 0x400
562 #define _WIN32_WINNT 0x400
563 #define WIN32_LEAN_AND_MEAN
564 #if defined(_MSC_VER) && (_MSC_VER < 1300)
567 #include <winsock2.h>
568 #include <ws2tcpip.h>
573 AC_CHECK_TYPES([rlim_t], , ,
574 [#ifdef HAVE_SYS_TYPES_H
575 #include <sys/types.h>
577 #ifdef HAVE_SYS_TIME_H
578 #include <sys/time.h>
580 #ifdef HAVE_SYS_RESOURCE_H
581 #include <sys/resource.h>
585 AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
586 AC_RUN_IFELSE([AC_LANG_SOURCE([
587 #ifdef HAVE_SYS_TYPES_H
588 #include <sys/types.h>
590 #ifdef HAVE_SYS_TIME_H
591 #include <sys/time.h>
596 int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }])],
597 tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes, tor_cv_time_t_signed=cross)
600 if test "$tor_cv_time_t_signed" = cross; then
601 AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
604 if test "$tor_cv_time_t_signed" != no; then
605 AC_DEFINE([TIME_T_IS_SIGNED], 1,
606 [Define to 1 iff time_t is signed])
609 AC_CACHE_CHECK([whether size_t is signed], tor_cv_size_t_signed, [
610 AC_RUN_IFELSE([AC_LANG_SOURCE([
611 #ifdef HAVE_SYS_TYPES_H
612 #include <sys/types.h>
614 int main(int c, char**v) { if (((size_t)-1)<0) return 1; else return 0; }])],
615 tor_cv_size_t_signed=no, tor_cv_size_t_signed=yes, tor_cv_size_t_signed=cross)
618 if test "$tor_cv_size_t_signed" = cross; then
619 AC_MSG_NOTICE([Cross compiling: assuming that size_t is not signed.])
622 if test "$tor_cv_size_t_signed" = yes; then
623 AC_MSG_ERROR([You have a signed size_t; that's grossly nonconformant.])
626 AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
627 #ifdef HAVE_SYS_SOCKET_H
628 #include <sys/socket.h>
632 # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
634 AC_CHECK_SIZEOF(cell_t)
636 # Now make sure that NULL can be represented as zero bytes.
637 AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
638 [AC_RUN_IFELSE([AC_LANG_SOURCE(
639 [[#include <stdlib.h>
645 int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
646 return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
647 [tor_cv_null_is_zero=yes],
648 [tor_cv_null_is_zero=no],
649 [tor_cv_null_is_zero=cross])])
651 if test "$tor_cv_null_is_zero" = cross ; then
652 # Cross-compiling; let's hope that the target isn't raving mad.
653 AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
656 if test "$tor_cv_null_is_zero" != no; then
657 AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
658 [Define to 1 iff memset(0) sets pointers to NULL])
661 # And what happens when we malloc zero?
662 AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
663 [AC_RUN_IFELSE([AC_LANG_SOURCE(
664 [[#include <stdlib.h>
670 int main () { return malloc(0)?0:1; }]])],
671 [tor_cv_malloc_zero_works=yes],
672 [tor_cv_malloc_zero_works=no],
673 [tor_cv_malloc_zero_works=cross])])
675 if test "$tor_cv_malloc_zero_works" = cross; then
676 # Cross-compiling; let's hope that the target isn't raving mad.
677 AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
680 if test "$tor_cv_malloc_zero_works" = yes; then
681 AC_DEFINE([MALLOC_ZERO_WORKS], 1,
682 [Define to 1 iff malloc(0) returns a pointer])
685 # whether we seem to be in a 2s-complement world.
686 AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
687 [AC_RUN_IFELSE([AC_LANG_SOURCE(
688 [[int main () { int problem = ((-99) != (~99)+1);
689 return problem ? 1 : 0; }]])],
690 [tor_cv_twos_complement=yes],
691 [tor_cv_twos_complement=no],
692 [tor_cv_twos_complement=cross])])
694 if test "$tor_cv_twos_complement" = cross ; then
695 # Cross-compiling; let's hope that the target isn't raving mad.
696 AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
699 if test "$tor_cv_twos_complement" != no ; then
700 AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
701 [Define to 1 iff we represent negative integers with two's complement])
704 # What does shifting a negative value do?
705 AC_CACHE_CHECK([whether right-shift on negative values does sign-extension], tor_cv_sign_extend,
706 [AC_RUN_IFELSE([AC_LANG_SOURCE(
707 [[int main () { int okay = (-60 >> 8) == -1; return okay ? 0 : 1; }]])],
708 [tor_cv_sign_extend=yes],
709 [tor_cv_sign_extend=no],
710 [tor_cv_sign_extend=cross])])
712 if test "$tor_cv_sign_extend" = cross ; then
713 # Cross-compiling; let's hope that the target isn't raving mad.
714 AC_MSG_NOTICE([Cross-compiling: we'll assume that right-shifting negative integers causes sign-extension])
717 if test "$tor_cv_sign_extend" != no ; then
718 AC_DEFINE([RSHIFT_DOES_SIGN_EXTEND], 1,
719 [Define to 1 iff right-shifting a negative value performs sign-extension])
722 # Whether we should use the dmalloc memory allocation debugging library.
723 AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
725 [ --with-dmalloc Use debug memory allocation library. ],
726 [if [[ "$withval" = "yes" ]]; then
732 fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
735 if [[ $dmalloc -eq 1 ]]; then
736 AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
737 AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
738 AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
739 AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
740 AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
743 AC_ARG_WITH(tcmalloc,
744 [ --with-tcmalloc Use tcmalloc memory allocation library. ],
745 [ tcmalloc=yes ], [ tcmalloc=no ])
747 if test x$tcmalloc = xyes ; then
748 LDFLAGS="-ltcmalloc $LDFLAGS"
751 # By default, we're going to assume we don't have mlockall()
752 # bionic and other platforms have various broken mlockall subsystems.
753 # Some systems don't have a working mlockall, some aren't linkable,
754 # and some have it but don't declare it.
755 AC_CHECK_FUNCS(mlockall)
756 AC_CHECK_DECLS([mlockall], , , [
757 #ifdef HAVE_SYS_MMAN_H
758 #include <sys/mman.h>
761 # Allow user to specify an alternate syslog facility
762 AC_ARG_WITH(syslog-facility,
763 [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
764 syslog_facility="$withval", syslog_facility="LOG_DAEMON")
765 AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
766 AC_SUBST(LOGFACILITY)
768 # Check if we have getresuid and getresgid
769 AC_CHECK_FUNCS(getresuid getresgid)
771 # Check for gethostbyname_r in all its glorious incompatible versions.
772 # (This logic is based on that in Python's configure.in)
773 AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
774 [Define this if you have any gethostbyname_r()])
776 AC_CHECK_FUNC(gethostbyname_r, [
777 AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
779 CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
780 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
784 struct hostent *h1, *h2;
786 (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
788 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
789 AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
790 [Define this if gethostbyname_r takes 6 arguments])
799 (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
801 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
802 AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
803 [Define this if gethostbyname_r takes 5 arguments])
811 struct hostent_data hd;
812 (void) gethostbyname_r(cp1,h1,&hd);
814 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
815 AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
816 [Define this if gethostbyname_r takes 3 arguments])
826 AC_CACHE_CHECK([whether the C compiler supports __func__],
827 tor_cv_have_func_macro,
828 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
830 int main(int c, char **v) { puts(__func__); }])],
831 tor_cv_have_func_macro=yes,
832 tor_cv_have_func_macro=no))
834 AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
835 tor_cv_have_FUNC_macro,
836 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
838 int main(int c, char **v) { puts(__FUNC__); }])],
839 tor_cv_have_FUNC_macro=yes,
840 tor_cv_have_FUNC_macro=no))
842 AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
843 tor_cv_have_FUNCTION_macro,
844 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
846 int main(int c, char **v) { puts(__FUNCTION__); }])],
847 tor_cv_have_FUNCTION_macro=yes,
848 tor_cv_have_FUNCTION_macro=no))
850 if test "$tor_cv_have_func_macro" = 'yes'; then
851 AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
854 if test "$tor_cv_have_FUNC_macro" = 'yes'; then
855 AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
858 if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
859 AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
860 [Defined if the compiler supports __FUNCTION__])
863 # $prefix stores the value of the --prefix command line option, or
864 # NONE if the option wasn't set. In the case that it wasn't set, make
865 # it be the default, so that we can use it to expand directories now.
866 if test "x$prefix" = "xNONE"; then
867 prefix=$ac_default_prefix
870 # and similarly for $exec_prefix
871 if test "x$exec_prefix" = "xNONE"; then
875 if test "x$CONFDIR" = "x"; then
876 CONFDIR=`eval echo $sysconfdir/tor`
879 AH_TEMPLATE([CONFDIR],[tor's configuration directory])
880 AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
882 BINDIR=`eval echo $bindir`
884 LOCALSTATEDIR=`eval echo $localstatedir`
885 AC_SUBST(LOCALSTATEDIR)
887 if test "$bwin32" = true; then
888 # Test if the linker supports the --nxcompat and --dynamicbase options
890 save_LDFLAGS="$LDFLAGS"
891 LDFLAGS="-Wl,--nxcompat -Wl,--dynamicbase"
892 AC_MSG_CHECKING([whether the linker supports DllCharacteristics])
893 AC_LINK_IFELSE([AC_LANG_PROGRAM([])],
894 [AC_MSG_RESULT([yes])]
895 [save_LDFLAGS="$save_LDFLAGS $LDFLAGS"],
896 [AC_MSG_RESULT([no])]
898 LDFLAGS="$save_LDFLAGS"
901 # Set CFLAGS _after_ all the above checks, since our warnings are stricter
902 # than autoconf's macros like.
903 if test "$GCC" = yes; then
904 # Disable GCC's strict aliasing checks. They are an hours-to-debug
905 # accident waiting to happen.
906 CFLAGS="$CFLAGS -Wall -fno-strict-aliasing"
908 # Autoconf sets -g -O2 by default. Override optimization level
909 # for non-gcc compilers
911 enable_gcc_warnings=no
912 enable_gcc_warnings_advisory=no
915 # OS X Lion started deprecating the system openssl. Let's just disable
916 # all deprecation warnings on OS X.
920 CFLAGS="$CFLAGS -Wno-deprecated-declarations"
924 # Add some more warnings which we use in development but not in the
925 # released versions. (Some relevant gcc versions can't handle these.)
926 if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
928 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
929 #if !defined(__GNUC__) || (__GNUC__ < 4)
931 #endif])], have_gcc4=yes, have_gcc4=no)
933 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
934 #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
936 #endif])], have_gcc42=yes, have_gcc42=no)
938 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
939 #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
941 #endif])], have_gcc43=yes, have_gcc43=no)
943 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
944 #if !defined(__clang__)
946 #endif])], have_clang=yes, have_clang=no)
948 save_CFLAGS="$CFLAGS"
949 CFLAGS="$CFLAGS -Wshorten-64-to-32"
950 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], have_shorten64_flag=yes,
951 have_shorten64_flag=no)
952 CFLAGS="$save_CFLAGS"
956 # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default.
957 # That's fine, except that the headers don't pass -Wredundant-decls.
958 # Therefore, let's disable -Wsystem-headers when we're building
959 # with maximal warnings on OpenBSD.
960 CFLAGS="$CFLAGS -Wno-system-headers" ;;
963 CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Wwrite-strings -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wbad-function-cast -Wswitch-enum"
964 if test x$enable_gcc_warnings = xyes; then
965 CFLAGS="$CFLAGS -Werror"
968 # Disabled, so we can use mallinfo(): -Waggregate-return
970 if test x$have_gcc4 = xyes ; then
971 # These warnings break gcc 3.3.5 and work on gcc 4.0.2
972 CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
975 if test x$have_gcc42 = xyes ; then
976 # These warnings break gcc 4.0.2 and work on gcc 4.2
977 # XXXX020 See if any of these work with earlier versions.
978 CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wstrict-overflow=1"
980 # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
983 if test x$have_gcc42 = xyes && test x$have_clang = xno; then
984 # These warnings break gcc 4.0.2 and clang, but work on gcc 4.2
985 CFLAGS="$CFLAGS -Wnormalized=id -Woverride-init"
988 if test x$have_gcc43 = xyes ; then
989 # These warnings break gcc 4.2 and work on gcc 4.3
990 # XXXX020 See if any of these work with earlier versions.
991 CFLAGS="$CFLAGS -Wextra -Warray-bounds"
994 if test x$have_shorten64_flag = xyes ; then
995 CFLAGS="$CFLAGS -Wshorten-64-to-32"
998 ##This will break the world on some 64-bit architectures
999 # CFLAGS="$CFLAGS -Winline"
1004 CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
1006 AC_CONFIG_FILES([Makefile tor.spec Doxyfile contrib/tor.sh contrib/torctl contrib/torify contrib/tor.logrotate contrib/Makefile src/config/torrc.sample src/Makefile doc/Makefile src/config/Makefile src/common/Makefile src/or/Makefile src/test/Makefile src/win32/Makefile src/tools/Makefile contrib/suse/Makefile contrib/suse/tor.sh])
1009 if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
1010 ./contrib/updateVersions.pl