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, 0.2.2.19-alpha)
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 "$enable_local_appdata" = "yes"; then
117 AC_DEFINE(ENABLE_LOCAL_APPDATA, 1,
118 [Defined if we default to host local appdata paths on Windows])
126 dnl autoconf 2.59 appears not to support AC_PROG_SED
127 AC_CHECK_PROG([SED],[sed],[sed],[/bin/false])
129 dnl check for asciidoc and a2x
130 AC_PATH_PROG([ASCIIDOC], [asciidoc], none)
131 AC_PATH_PROG([A2X], [a2x], none)
133 AM_CONDITIONAL(USE_ASCIIDOC, test x$asciidoc = xtrue)
135 AC_PATH_PROG([SHA1SUM], [sha1sum], none)
136 AC_PATH_PROG([OPENSSL], [openssl], none)
139 AC_ARG_WITH(tor-user,
140 [ --with-tor-user=NAME Specify username for tor daemon ],
148 AC_ARG_WITH(tor-group,
149 [ --with-tor-group=NAME Specify group name for tor daemon ],
157 dnl If WIN32 is defined and non-zero, we are building for win32
158 AC_MSG_CHECKING([for win32])
159 AC_RUN_IFELSE([AC_LANG_SOURCE([
160 int main(int c, char **v) {
171 bwin32=true; AC_MSG_RESULT([yes]),
172 bwin32=false; AC_MSG_RESULT([no]),
173 bwin32=cross; AC_MSG_RESULT([cross])
176 if test "$bwin32" = cross; then
177 AC_MSG_CHECKING([for win32 (cross)])
178 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
180 int main(int c, char **v) {return 0;}
183 int main(int c, char **v) {return x(y);}
186 bwin32=true; AC_MSG_RESULT([yes]),
187 bwin32=false; AC_MSG_RESULT([no]))
190 if test "$bwin32" = true; then
191 AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
193 AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
195 dnl Enable C99 when compiling with MIPSpro
196 AC_MSG_CHECKING([for MIPSpro compiler])
197 AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [
198 #if (defined(__sgi) && defined(_COMPILER_VERSION))
203 bmipspro=false; AC_MSG_RESULT(no),
204 bmipspro=true; AC_MSG_RESULT(yes))
206 if test "$bmipspro" = true; then
207 CFLAGS="$CFLAGS -c99"
212 AC_SEARCH_LIBS(socket, [socket])
213 AC_SEARCH_LIBS(gethostbyname, [nsl])
214 AC_SEARCH_LIBS(dlopen, [dl])
215 AC_SEARCH_LIBS(inet_aton, [resolv])
217 if test "$enable_threads" = "yes"; then
218 AC_SEARCH_LIBS(pthread_create, [pthread])
219 AC_SEARCH_LIBS(pthread_detach, [pthread])
222 dnl -------------------------------------------------------------------
223 dnl Check for functions before libevent, since libevent-1.2 apparently
224 dnl exports strlcpy without defining it in a header.
226 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)
228 using_custom_malloc=no
229 if test x$enable_openbsd_malloc = xyes ; then
230 AC_DEFINE(HAVE_MALLOC_GOOD_SIZE, 1, [Defined if we have the malloc_good_size function])
231 using_custom_malloc=yes
233 if test x$tcmalloc = xyes ; then
234 using_custom_malloc=yes
236 if test $using_custom_malloc = no ; then
237 AC_CHECK_FUNCS(mallinfo malloc_good_size malloc_usable_size)
240 if test "$enable_threads" = "yes"; then
241 AC_CHECK_HEADERS(pthread.h)
242 AC_CHECK_FUNCS(pthread_create)
245 dnl ------------------------------------------------------
246 dnl Where do you live, libevent? And how do we call you?
248 if test "$bwin32" = true; then
249 TOR_LIB_WS32=-lws2_32
250 # Some of the cargo-cults recommend -lwsock32 as well, but I don't
251 # think it's actually necessary.
257 AC_SUBST(TOR_LIB_WS32)
258 AC_SUBST(TOR_LIB_GDI)
260 dnl We need to do this before we try our disgusting hack below.
261 AC_CHECK_HEADERS([sys/types.h])
263 dnl This is a disgusting hack so we safely include older libevent headers.
264 AC_CHECK_TYPE(u_int64_t, unsigned long long)
265 AC_CHECK_TYPE(u_int32_t, unsigned long)
266 AC_CHECK_TYPE(u_int16_t, unsigned short)
267 AC_CHECK_TYPE(u_int8_t, unsigned char)
269 tor_libevent_pkg_redhat="libevent"
270 tor_libevent_pkg_debian="libevent-dev"
271 tor_libevent_devpkg_redhat="libevent-devel"
272 tor_libevent_devpkg_debian="libevent-dev"
274 dnl On Gnu/Linux or any place we require it, we'll add librt to the Libevent
275 dnl linking for static builds.
276 STATIC_LIBEVENT_FLAGS=""
277 if test "$enable_static_libevent" = "yes"; then
278 dnl Determine if we have clock_gettime in librt
279 AC_SEARCH_LIBS([clock_gettime], [rt],
281 if test "$have_rt" = yes; then
282 STATIC_LIBEVENT_FLAGS=" -lrt "
286 TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32], [
288 #include <winsock2.h>
291 #include <sys/time.h>
292 #include <sys/types.h>
293 #include <event.h>], [
295 #include <winsock2.h>
297 void exit(int); void *event_init(void);],
300 {WSADATA d; WSAStartup(0x101,&d); }
302 event_init(); exit(0);
303 ], [--with-libevent-dir], [/opt/libevent])
305 dnl Now check for particular libevent functions.
307 save_LDFLAGS="$LDFLAGS"
308 save_CPPFLAGS="$CPPFLAGS"
309 LIBS="-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32 $LIBS"
310 LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
311 CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
312 AC_CHECK_FUNCS(event_get_version event_get_version_number event_get_method event_set_log_callback evdns_set_outgoing_bind_address event_base_loopexit)
313 AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
317 AC_CHECK_HEADERS(event2/event.h event2/dns.h)
320 LDFLAGS="$save_LDFLAGS"
321 CPPFLAGS="$save_CPPFLAGS"
324 AM_CONDITIONAL(USE_EXTERNAL_EVDNS, test x$ac_cv_header_event2_dns_h = xyes)
326 if test "$enable_static_libevent" = "yes"; then
327 if test "$tor_cv_library_libevent_dir" = "(system)"; then
328 AC_MSG_ERROR("You must specify an explicit --with-libevent-dir=x option when using --enable-static-libevent")
330 TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent.a $STATIC_LIBEVENT_FLAGS"
333 TOR_LIBEVENT_LIBS="-levent"
335 AC_SUBST(TOR_LIBEVENT_LIBS)
338 dnl ------------------------------------------------------
339 dnl Where do you live, openssl? And how do we call you?
341 tor_openssl_pkg_redhat="openssl"
342 tor_openssl_pkg_debian="libssl"
343 tor_openssl_devpkg_redhat="openssl-devel"
344 tor_openssl_devpkg_debian="libssl-dev"
346 ALT_openssl_WITHVAL=""
348 [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
350 if test "x$withval" != xno && test "x$withval" != "x" ; then
351 ALT_openssl_WITHVAL="$withval"
355 TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
356 [#include <openssl/rand.h>],
357 [void RAND_add(const void *buf, int num, double entropy);],
358 [RAND_add((void*)0,0,0); exit(0);], [],
359 [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
361 dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
363 echo "tor_cv_library_openssl_dir is $tor_cv_library_openssl_dir"
364 if test "$enable_static_openssl" = "yes"; then
365 if test "$tor_cv_library_openssl_dir" = "(system)"; then
366 AC_MSG_ERROR("You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl")
368 TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a"
371 TOR_OPENSSL_LIBS="-lssl -lcrypto"
373 AC_SUBST(TOR_OPENSSL_LIBS)
375 dnl ------------------------------------------------------
376 dnl Where do you live, zlib? And how do we call you?
378 tor_zlib_pkg_redhat="zlib"
379 tor_zlib_pkg_debian="zlib1g"
380 tor_zlib_devpkg_redhat="zlib-devel"
381 tor_zlib_devpkg_debian="zlib1g-dev"
383 TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
385 [const char * zlibVersion(void);],
386 [zlibVersion(); exit(0);], [--with-zlib-dir],
389 if test "$enable_static_zlib" = "yes"; then
390 if test "$tor_cv_library_zlib_dir" = "(system)"; then
391 AC_MSG_ERROR("You must specify an explicit --with-zlib-dir=x option when
392 using --enable-static-zlib")
394 TOR_ZLIB_LIBS="$TOR_LIBDIR_zlib/libz.a"
395 echo "$TOR_LIBDIR_zlib/libz.a"
400 AC_SUBST(TOR_ZLIB_LIBS)
402 dnl Make sure to enable support for large off_t if available.
406 AC_CHECK_HEADERS(unistd.h string.h signal.h sys/stat.h sys/types.h fcntl.h sys/fcntl.h sys/time.h errno.h assert.h time.h, , AC_MSG_WARN(Some headers were not found, compilation may fail. If compilation succeeds, please send your orconfig.h to the developers so we can fix this warning.))
408 AC_CHECK_HEADERS(netdb.h sys/ioctl.h sys/socket.h arpa/inet.h netinet/in.h pwd.h grp.h sys/un.h sys/uio.h)
410 dnl These headers are not essential
412 AC_CHECK_HEADERS(stdint.h sys/types.h inttypes.h sys/param.h sys/wait.h limits.h sys/limits.h netinet/in.h arpa/inet.h machine/limits.h syslog.h sys/time.h sys/resource.h inttypes.h utime.h sys/utime.h sys/mman.h netinet/in6.h malloc.h sys/syslimits.h malloc/malloc.h linux/types.h sys/file.h malloc_np.h sys/prctl.h)
414 TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
415 [#ifdef HAVE_MALLOC_H
418 #ifdef HAVE_MALLOC_MALLOC_H
419 #include <malloc/malloc.h>
422 AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
423 [#ifdef HAVE_SYS_TYPES_H
424 #include <sys/types.h>
426 #ifdef HAVE_SYS_SOCKET_H
427 #include <sys/socket.h>
429 AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
430 [#ifdef HAVE_SYS_TYPES_H
431 #include <sys/types.h>
433 #ifdef HAVE_SYS_SOCKET_H
434 #include <sys/socket.h>
439 AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
440 linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
441 [#ifdef HAVE_SYS_TYPES_H
442 #include <sys/types.h>
444 #ifdef HAVE_SYS_SOCKET_H
445 #include <sys/socket.h>
450 #ifdef HAVE_LINUX_TYPES_H
451 #include <linux/types.h>
453 #ifdef HAVE_NETINET_IN6_H
454 #include <netinet/in6.h>
456 #ifdef HAVE_NETINET_IN_H
457 #include <netinet/in.h>
460 if test x$transparent = xtrue ; then
462 if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
465 if test x$linux_netfilter_ipv4 = x1 ; then
468 if test x$transparent_ok = x1 ; then
469 AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
472 AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
475 AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
479 AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
480 [#ifdef HAVE_SYS_TYPES_H
481 #include <sys/types.h>
483 #ifdef HAVE_SYS_TIME_H
484 #include <sys/time.h>
487 dnl In case we aren't given a working stdint.h, we'll need to grow our own.
490 AC_CHECK_SIZEOF(int8_t)
491 AC_CHECK_SIZEOF(int16_t)
492 AC_CHECK_SIZEOF(int32_t)
493 AC_CHECK_SIZEOF(int64_t)
494 AC_CHECK_SIZEOF(uint8_t)
495 AC_CHECK_SIZEOF(uint16_t)
496 AC_CHECK_SIZEOF(uint32_t)
497 AC_CHECK_SIZEOF(uint64_t)
498 AC_CHECK_SIZEOF(intptr_t)
499 AC_CHECK_SIZEOF(uintptr_t)
501 dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
503 AC_CHECK_SIZEOF(char)
504 AC_CHECK_SIZEOF(short)
506 AC_CHECK_SIZEOF(long)
507 AC_CHECK_SIZEOF(long long)
508 AC_CHECK_SIZEOF(__int64)
509 AC_CHECK_SIZEOF(void *)
510 AC_CHECK_SIZEOF(time_t)
511 AC_CHECK_SIZEOF(size_t)
513 AC_CHECK_TYPES([uint, u_char, ssize_t])
515 dnl used to include sockaddr_storage, but everybody has that.
516 AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
517 [#ifdef HAVE_SYS_TYPES_H
518 #include <sys/types.h>
520 #ifdef HAVE_NETINET_IN_H
521 #include <netinet/in.h>
523 #ifdef HAVE_NETINET_IN6_H
524 #include <netinet/in6.h>
526 #ifdef HAVE_SYS_SOCKET_H
527 #include <sys/socket.h>
530 #define WIN32_WINNT 0x400
531 #define _WIN32_WINNT 0x400
532 #define WIN32_LEAN_AND_MEAN
533 #if defined(_MSC_VER) && (_MSC_VER < 1300)
536 #include <winsock2.h>
537 #include <ws2tcpip.h>
541 AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
542 [#ifdef HAVE_SYS_TYPES_H
543 #include <sys/types.h>
545 #ifdef HAVE_NETINET_IN_H
546 #include <netinet/in.h>
548 #ifdef HAVE_NETINET_IN6_H
549 #include <netinet/in6.h>
551 #ifdef HAVE_SYS_SOCKET_H
552 #include <sys/socket.h>
555 #define WIN32_WINNT 0x400
556 #define _WIN32_WINNT 0x400
557 #define WIN32_LEAN_AND_MEAN
558 #if defined(_MSC_VER) && (_MSC_VER < 1300)
561 #include <winsock2.h>
562 #include <ws2tcpip.h>
567 AC_CHECK_TYPES([rlim_t], , ,
568 [#ifdef HAVE_SYS_TYPES_H
569 #include <sys/types.h>
571 #ifdef HAVE_SYS_TIME_H
572 #include <sys/time.h>
574 #ifdef HAVE_SYS_RESOURCE_H
575 #include <sys/resource.h>
579 AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
580 AC_RUN_IFELSE([AC_LANG_SOURCE([
581 #ifdef HAVE_SYS_TYPES_H
582 #include <sys/types.h>
584 #ifdef HAVE_SYS_TIME_H
585 #include <sys/time.h>
590 int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }])],
591 tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes, tor_cv_time_t_signed=cross)
594 if test "$tor_cv_time_t_signed" = cross; then
595 AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
598 if test "$tor_cv_time_t_signed" != no; then
599 AC_DEFINE([TIME_T_IS_SIGNED], 1,
600 [Define to 1 iff time_t is signed])
603 AC_CACHE_CHECK([whether size_t is signed], tor_cv_size_t_signed, [
604 AC_RUN_IFELSE([AC_LANG_SOURCE([
605 #ifdef HAVE_SYS_TYPES_H
606 #include <sys/types.h>
608 int main(int c, char**v) { if (((size_t)-1)<0) return 1; else return 0; }])],
609 tor_cv_size_t_signed=no, tor_cv_size_t_signed=yes, tor_cv_size_t_signed=cross)
612 if test "$tor_cv_size_t_signed" = cross; then
613 AC_MSG_NOTICE([Cross compiling: assuming that size_t is not signed.])
616 if test "$tor_cv_size_t_signed" = yes; then
617 AC_MSG_ERROR([You have a signed size_t; that's grossly nonconformant.])
620 AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
621 #ifdef HAVE_SYS_SOCKET_H
622 #include <sys/socket.h>
626 # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
628 AC_CHECK_SIZEOF(cell_t)
630 # Now make sure that NULL can be represented as zero bytes.
631 AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
632 [AC_RUN_IFELSE([AC_LANG_SOURCE(
633 [[#include <stdlib.h>
639 int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
640 return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
641 [tor_cv_null_is_zero=yes],
642 [tor_cv_null_is_zero=no],
643 [tor_cv_null_is_zero=cross])])
645 if test "$tor_cv_null_is_zero" = cross ; then
646 # Cross-compiling; let's hope that the target isn't raving mad.
647 AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
650 if test "$tor_cv_null_is_zero" != no; then
651 AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
652 [Define to 1 iff memset(0) sets pointers to NULL])
655 # And what happens when we malloc zero?
656 AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
657 [AC_RUN_IFELSE([AC_LANG_SOURCE(
658 [[#include <stdlib.h>
664 int main () { return malloc(0)?0:1; }]])],
665 [tor_cv_malloc_zero_works=yes],
666 [tor_cv_malloc_zero_works=no],
667 [tor_cv_malloc_zero_works=cross])])
669 if test "$tor_cv_malloc_zero_works" = cross; then
670 # Cross-compiling; let's hope that the target isn't raving mad.
671 AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
674 if test "$tor_cv_malloc_zero_works" = yes; then
675 AC_DEFINE([MALLOC_ZERO_WORKS], 1,
676 [Define to 1 iff malloc(0) returns a pointer])
679 # whether we seem to be in a 2s-complement world.
680 AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
681 [AC_RUN_IFELSE([AC_LANG_SOURCE(
682 [[int main () { int problem = ((-99) != (~99)+1);
683 return problem ? 1 : 0; }]])],
684 [tor_cv_twos_complement=yes],
685 [tor_cv_twos_complement=no],
686 [tor_cv_twos_complement=cross])])
688 if test "$tor_cv_twos_complement" = cross ; then
689 # Cross-compiling; let's hope that the target isn't raving mad.
690 AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
693 if test "$tor_cv_twos_complement" != no ; then
694 AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
695 [Define to 1 iff we represent negative integers with two's complement])
698 # What does shifting a negative value do?
699 AC_CACHE_CHECK([whether right-shift on negative values does sign-extension], tor_cv_sign_extend,
700 [AC_RUN_IFELSE([AC_LANG_SOURCE(
701 [[int main () { int okay = (-60 >> 8) == -1; return okay ? 0 : 1; }]])],
702 [tor_cv_sign_extend=yes],
703 [tor_cv_sign_extend=no],
704 [tor_cv_sign_extend=cross])])
706 if test "$tor_cv_sign_extend" = cross ; then
707 # Cross-compiling; let's hope that the target isn't raving mad.
708 AC_MSG_NOTICE([Cross-compiling: we'll assume that right-shifting negative integers causes sign-extension])
711 if test "$tor_cv_sign_extend" != no ; then
712 AC_DEFINE([RSHIFT_DOES_SIGN_EXTEND], 1,
713 [Define to 1 iff right-shifting a negative value performs sign-extension])
716 # Whether we should use the dmalloc memory allocation debugging library.
717 AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
719 [ --with-dmalloc Use debug memory allocation library. ],
720 [if [[ "$withval" = "yes" ]]; then
726 fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
729 if [[ $dmalloc -eq 1 ]]; then
730 AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
731 AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
732 AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
733 AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
734 AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
737 AC_ARG_WITH(tcmalloc,
738 [ --with-tcmalloc Use tcmalloc memory allocation library. ],
739 [ tcmalloc=yes ], [ tcmalloc=no ])
741 if test x$tcmalloc = xyes ; then
742 LDFLAGS="-ltcmalloc $LDFLAGS"
745 # By default, we're going to assume we don't have mlockall()
746 # bionic and other platforms have various broken mlockall subsystems.
747 # Some systems don't have a working mlockall, some aren't linkable,
748 # and some have it but don't declare it.
749 AC_CHECK_FUNCS(mlockall)
750 AC_CHECK_DECLS([mlockall], , , [
751 #ifdef HAVE_SYS_MMAN_H
752 #include <sys/mman.h>
755 # Allow user to specify an alternate syslog facility
756 AC_ARG_WITH(syslog-facility,
757 [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
758 syslog_facility="$withval", syslog_facility="LOG_DAEMON")
759 AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
760 AC_SUBST(LOGFACILITY)
762 # Check if we have getresuid and getresgid
763 AC_CHECK_FUNCS(getresuid getresgid)
765 # Check for gethostbyname_r in all its glorious incompatible versions.
766 # (This logic is based on that in Python's configure.in)
767 AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
768 [Define this if you have any gethostbyname_r()])
770 AC_CHECK_FUNC(gethostbyname_r, [
771 AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
773 CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
774 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
778 struct hostent *h1, *h2;
780 (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
782 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
783 AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
784 [Define this if gethostbyname_r takes 6 arguments])
793 (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
795 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
796 AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
797 [Define this if gethostbyname_r takes 5 arguments])
805 struct hostent_data hd;
806 (void) gethostbyname_r(cp1,h1,&hd);
808 AC_DEFINE(HAVE_GETHOSTBYNAME_R)
809 AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
810 [Define this if gethostbyname_r takes 3 arguments])
820 AC_CACHE_CHECK([whether the C compiler supports __func__],
821 tor_cv_have_func_macro,
822 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
824 int main(int c, char **v) { puts(__func__); }])],
825 tor_cv_have_func_macro=yes,
826 tor_cv_have_func_macro=no))
828 AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
829 tor_cv_have_FUNC_macro,
830 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
832 int main(int c, char **v) { puts(__FUNC__); }])],
833 tor_cv_have_FUNC_macro=yes,
834 tor_cv_have_FUNC_macro=no))
836 AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
837 tor_cv_have_FUNCTION_macro,
838 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
840 int main(int c, char **v) { puts(__FUNCTION__); }])],
841 tor_cv_have_FUNCTION_macro=yes,
842 tor_cv_have_FUNCTION_macro=no))
844 if test "$tor_cv_have_func_macro" = 'yes'; then
845 AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
848 if test "$tor_cv_have_FUNC_macro" = 'yes'; then
849 AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
852 if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
853 AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
854 [Defined if the compiler supports __FUNCTION__])
857 # $prefix stores the value of the --prefix command line option, or
858 # NONE if the option wasn't set. In the case that it wasn't set, make
859 # it be the default, so that we can use it to expand directories now.
860 if test "x$prefix" = "xNONE"; then
861 prefix=$ac_default_prefix
864 # and similarly for $exec_prefix
865 if test "x$exec_prefix" = "xNONE"; then
869 if test "x$CONFDIR" = "x"; then
870 CONFDIR=`eval echo $sysconfdir/tor`
873 AH_TEMPLATE([CONFDIR],[tor's configuration directory])
874 AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
876 BINDIR=`eval echo $bindir`
878 LOCALSTATEDIR=`eval echo $localstatedir`
879 AC_SUBST(LOCALSTATEDIR)
881 if test "$bwin32" = true; then
882 # Test if the linker supports the --nxcompat and --dynamicbase options
884 save_LDFLAGS="$LDFLAGS"
885 LDFLAGS="-Wl,--nxcompat -Wl,--dynamicbase"
886 AC_MSG_CHECKING([whether the linker supports DllCharacteristics])
887 AC_LINK_IFELSE([AC_LANG_PROGRAM([])],
888 [AC_MSG_RESULT([yes])]
889 [save_LDFLAGS="$save_LDFLAGS $LDFLAGS"],
890 [AC_MSG_RESULT([no])]
892 LDFLAGS="$save_LDFLAGS"
895 # Set CFLAGS _after_ all the above checks, since our warnings are stricter
896 # than autoconf's macros like.
897 if test "$GCC" = yes; then
898 # Disable GCC's strict aliasing checks. They are an hours-to-debug
899 # accident waiting to happen.
900 CFLAGS="$CFLAGS -Wall -fno-strict-aliasing"
902 # Autoconf sets -g -O2 by default. Override optimization level
903 # for non-gcc compilers
905 enable_gcc_warnings=no
906 enable_gcc_warnings_advisory=no
909 # Add some more warnings which we use in development but not in the
910 # released versions. (Some relevant gcc versions can't handle these.)
911 if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
913 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
914 #if !defined(__GNUC__) || (__GNUC__ < 4)
916 #endif])], have_gcc4=yes, have_gcc4=no)
918 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
919 #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
921 #endif])], have_gcc42=yes, have_gcc42=no)
923 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
924 #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
926 #endif])], have_gcc43=yes, have_gcc43=no)
928 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
929 #if !defined(__clang__) || (__clang_major__ > 2) || (__clang_major__ == 2 && __clang_minor__ > 9)
931 #endif])], have_clang29orlower=yes, have_clang29orlower=no)
933 save_CFLAGS="$CFLAGS"
934 CFLAGS="$CFLAGS -Wshorten-64-to-32"
935 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], have_shorten64_flag=yes,
936 have_shorten64_flag=no)
937 CFLAGS="$save_CFLAGS"
941 # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default.
942 # That's fine, except that the headers don't pass -Wredundant-decls.
943 # Therefore, let's disable -Wsystem-headers when we're building
944 # with maximal warnings on OpenBSD.
945 CFLAGS="$CFLAGS -Wno-system-headers" ;;
948 CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Wwrite-strings -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wbad-function-cast -Wswitch-enum"
949 if test x$enable_gcc_warnings = xyes; then
950 CFLAGS="$CFLAGS -Werror"
953 # Disabled, so we can use mallinfo(): -Waggregate-return
955 if test x$have_gcc4 = xyes ; then
956 # These warnings break gcc 3.3.5 and work on gcc 4.0.2
957 CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
960 if test x$have_gcc42 = xyes ; then
961 # These warnings break gcc 4.0.2 and work on gcc 4.2
962 # XXXX020 See if any of these work with earlier versions.
963 CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wstrict-overflow=1"
965 # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
968 if test x$have_gcc42 = xyes && test x$have_clang29orlower = xno; then
969 # These warnings break gcc 4.0.2 and clang, but work on gcc 4.2
970 # We only disable these for clang 2.9 and lower, in case they are
971 # supported in later versions.
972 CFLAGS="$CFLAGS -Wnormalized=id -Woverride-init"
975 if test x$have_gcc43 = xyes ; then
976 # These warnings break gcc 4.2 and work on gcc 4.3
977 # XXXX020 See if any of these work with earlier versions.
978 CFLAGS="$CFLAGS -Wextra -Warray-bounds"
981 if test x$have_shorten64_flag = xyes ; then
982 CFLAGS="$CFLAGS -Wshorten-64-to-32"
985 ##This will break the world on some 64-bit architectures
986 # CFLAGS="$CFLAGS -Winline"
991 CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
993 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])
996 if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
997 ./contrib/updateVersions.pl