configure.in 26 KB

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  1. dnl $Id$
  2. dnl Copyright (c) 2001-2004, Roger Dingledine
  3. dnl Copyright (c) 2004-2007, Roger Dingledine, Nick Mathewson
  4. dnl See LICENSE for licensing information
  5. AC_INIT
  6. AM_INIT_AUTOMAKE(tor, 0.1.2.19-dev)
  7. AM_CONFIG_HEADER(orconfig.h)
  8. AC_CANONICAL_HOST
  9. if test -f /etc/redhat-release; then
  10. CFLAGS="$CFLAGS -I/usr/kerberos/include"
  11. fi
  12. AC_ARG_ENABLE(debug,
  13. AC_HELP_STRING(--enable-debug, compile with debugging info),
  14. [if test x$enableval = xyes; then
  15. CFLAGS="$CFLAGS -g"
  16. fi])
  17. AC_ARG_ENABLE(eventdns,
  18. AC_HELP_STRING(--enable-eventdns, enable asynchronous dns module),
  19. [case "${enableval}" in
  20. yes) eventdns=true ;;
  21. no) eventdns=false ;;
  22. *) AC_MSG_ERROR(bad value for --enable-eventdns) ;;
  23. esac], [eventdns=true])
  24. AM_CONDITIONAL(EVENTDNS, test x$eventdns = xtrue)
  25. if test x$eventdns = xtrue; then
  26. AC_DEFINE([USE_EVENTDNS], 1, "Define to 1 if we'll be using eventdns.c")
  27. fi
  28. AC_ARG_ENABLE(transparent,
  29. AC_HELP_STRING(--disable-transparent, disable transparent proxy support),
  30. [case "${enableval}" in
  31. yes) transparent=true ;;
  32. no) transparent=false ;;
  33. *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
  34. esac], [transparent=true])
  35. AC_ARG_ENABLE(threads,
  36. AC_HELP_STRING(--disable-threads, disable multi-threading support))
  37. if test x$enable_threads = x; then
  38. case $host in
  39. *-*-netbsd* | *-*-openbsd* )
  40. # Don't try multithreading on netbsd -- there is no threadsafe DNS
  41. # lookup function there.
  42. if test x$eventdns != xtrue; then
  43. AC_MSG_NOTICE([You are running OpenBSD or NetBSD; I am assuming that
  44. getaddrinfo is not threadsafe here, so I will disable threads.])
  45. enable_threads="no"
  46. else
  47. # This was an inadvertant default up through 0.1.2.14; in 0.2.0.x,
  48. # it's getting some testing, but for now, best leave threads off
  49. # unless the user urns them on.
  50. AC_MSG_NOTICE([You are running OpenBSD or NetBSD; Tor 0.1.2.x hasn't
  51. been tested with threads on these platforms, so I'm turning them off. You
  52. can enable threads by passing --enable-threads to the configure script.])
  53. enable_threads="no"
  54. fi ;;
  55. *-*-solaris* )
  56. # Don't try multithreading on solaris -- cpuworkers seem to lock.
  57. AC_MSG_NOTICE([You are running Solaris; Sometimes threading makes
  58. cpu workers lock up here, so I will disable threads.])
  59. enable_threads="no";;
  60. *)
  61. enable_threads="yes";;
  62. esac
  63. fi
  64. if test $enable_threads = "yes"; then
  65. AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
  66. fi
  67. case $host in
  68. *-*-solaris* )
  69. AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
  70. ;;
  71. esac
  72. AC_ARG_ENABLE(gcc-warnings,
  73. AC_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
  74. AC_PROG_CC
  75. AC_PROG_CPP
  76. AC_PROG_MAKE_SET
  77. AC_PROG_RANLIB
  78. # The big search for OpenSSL
  79. # copied from openssh's configure.ac
  80. tryssldir=""
  81. AC_ARG_WITH(ssl-dir,
  82. [ --with-ssl-dir=PATH Specify path to OpenSSL installation ],
  83. [
  84. if test "x$withval" != "xno" ; then
  85. tryssldir=$withval
  86. fi
  87. ]
  88. )
  89. trylibeventdir=""
  90. AC_ARG_WITH(libevent-dir,
  91. [ --with-libevent-dir=PATH Specify path to Libevent installation ],
  92. [
  93. if test "x$withval" != "xno" ; then
  94. trylibeventdir=$withval
  95. fi
  96. ]
  97. )
  98. TORUSER=_tor
  99. AC_ARG_WITH(tor-user,
  100. [ --with-tor-user=NAME Specify username for tor daemon ],
  101. [
  102. TORUSER=$withval
  103. ]
  104. )
  105. AC_SUBST(TORUSER)
  106. TORGROUP=_tor
  107. AC_ARG_WITH(tor-group,
  108. [ --with-tor-group=NAME Specify group name for tor daemon ],
  109. [
  110. TORGROUP=$withval
  111. ]
  112. )
  113. AC_SUBST(TORGROUP)
  114. dnl If WIN32 is defined and non-zero, we are building for win32
  115. AC_MSG_CHECKING([for win32])
  116. AC_RUN_IFELSE([
  117. int main(int c, char **v) {
  118. #ifdef WIN32
  119. #if WIN32
  120. return 0;
  121. #else
  122. return 1;
  123. #endif
  124. #else
  125. return 2;
  126. #endif
  127. }],
  128. bwin32=true; AC_MSG_RESULT([yes]),
  129. bwin32=false; AC_MSG_RESULT([no]),
  130. bwin32=cross; AC_MSG_RESULT([cross])
  131. )
  132. if test $bwin32 = cross; then
  133. AC_MSG_CHECKING([for win32 (cross)])
  134. AC_COMPILE_IFELSE([
  135. #ifdef WIN32
  136. int main(int c, char **v) {return 0;}
  137. #else
  138. #error
  139. int main(int c, char **v) {return x(y);}
  140. #endif
  141. ],
  142. bwin32=true; AC_MSG_RESULT([yes]),
  143. bwin32=false; AC_MSG_RESULT([no]))
  144. fi
  145. if test $bwin32 = true; then
  146. AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
  147. fi
  148. dnl Enable C99 when compiling with MIPSpro
  149. AC_MSG_CHECKING([for MIPSpro compiler])
  150. AC_TRY_COMPILE([], [
  151. #if (defined(__sgi) && defined(_COMPILER_VERSION))
  152. #error
  153. return x(y);
  154. #endif
  155. ],
  156. bmipspro=false; AC_MSG_RESULT([no]),
  157. bmipspro=true; AC_MSG_RESULT([yes]))
  158. if test $bmipspro = true; then
  159. CFLAGS="$CFLAGS -c99"
  160. fi
  161. AC_SEARCH_LIBS(socket, [socket])
  162. AC_SEARCH_LIBS(gethostbyname, [nsl])
  163. AC_SEARCH_LIBS(dlopen, [dl])
  164. AC_SEARCH_LIBS(inet_aton, [resolv])
  165. if test $enable_threads = "yes"; then
  166. AC_SEARCH_LIBS(pthread_create, [pthread])
  167. AC_SEARCH_LIBS(pthread_detach, [pthread])
  168. fi
  169. dnl -------------------------------------------------------------------
  170. dnl Check for functions before libevent, since libevent-1.2 apparently
  171. dnl exports strlcpy without defining it in a header.
  172. AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit strlcat strlcpy strtoull ftello getaddrinfo localtime_r gmtime_r memmem strtok_r)
  173. if test $enable_threads = "yes"; then
  174. AC_CHECK_HEADERS(pthread.h)
  175. AC_CHECK_FUNCS(pthread_create)
  176. fi
  177. dnl ------------------------------------------------------
  178. dnl Where do you live, libevent? And how do we call you?
  179. dnl This needs to happen before the below disgusting hack.
  180. AC_CHECK_HEADERS(sys/types.h)
  181. dnl This is a disgusting hack so we safely include older libevent headers.
  182. AC_CHECK_TYPE(u_int64_t, unsigned long long)
  183. AC_CHECK_TYPE(u_int32_t, unsigned long)
  184. AC_CHECK_TYPE(u_int16_t, unsigned short)
  185. AC_CHECK_TYPE(u_int8_t, unsigned char)
  186. AC_CACHE_CHECK([for libevent directory], tor_cv_libevent_dir, [
  187. saved_LIBS="$LIBS"
  188. saved_LDFLAGS="$LDFLAGS"
  189. saved_CPPFLAGS="$CPPFLAGS"
  190. le_found=no
  191. for ledir in $trylibeventdir "" $prefix /usr/local /usr/pkg ; do
  192. LDFLAGS="$saved_LDFLAGS"
  193. if test $bwin32 = true; then
  194. LIBS="$saved_LIBS -levent -lws2_32"
  195. else
  196. LIBS="$saved_LIBS -levent"
  197. fi
  198. # Skip the directory if it isn't there.
  199. if test ! -z "$ledir" -a ! -d "$ledir" ; then
  200. continue;
  201. fi
  202. if test ! -z "$ledir" ; then
  203. if test -d "$ledir/lib" ; then
  204. LDFLAGS="-L$ledir/lib $LDFLAGS"
  205. else
  206. LDFLAGS="-L$ledir $LDFLAGS"
  207. fi
  208. if test -d "$ledir/include" ; then
  209. CPPFLAGS="-I$ledir/include $CPPFLAGS"
  210. else
  211. CPPFLAGS="-I$ledir $CPPFLAGS"
  212. fi
  213. fi
  214. # Can I compile and link it?
  215. AC_TRY_LINK([#include <sys/time.h>
  216. #include <sys/types.h>
  217. #include <event.h>], [ event_init(); ],
  218. [ libevent_linked=yes ], [ libevent_linked=no ])
  219. if test $libevent_linked = yes; then
  220. if test ! -z "$ledir" ; then
  221. tor_cv_libevent_dir=$ledir
  222. else
  223. tor_cv_libevent_dir="(system)"
  224. fi
  225. le_found=yes
  226. break
  227. fi
  228. done
  229. LIBS="$saved_LIBS"
  230. LDFLAGS="$saved_LDFLAGS"
  231. CPPFLAGS="$saved_CPPFLAGS"
  232. if test $le_found = no ; then
  233. AC_MSG_ERROR([Could not find a linkable libevent. You can specify an explicit path using --with-libevent-dir])
  234. fi
  235. ])
  236. if test $bwin32 = true; then
  237. LIBS="$LIBS -levent -lws2_32"
  238. else
  239. LIBS="$LIBS -levent"
  240. fi
  241. if test "$tor_cv_libevent_dir" != "(system)"; then
  242. if test -d "$tor_cv_libevent_dir/lib" ; then
  243. LDFLAGS="-L$tor_cv_libevent_dir/lib $LDFLAGS"
  244. le_libdir="$tor_cv_libevent_dir/lib"
  245. else
  246. LDFLAGS="-L$tor_cv_libevent_dir $LDFLAGS"
  247. le_libdir="$tor_cv_libevent_dir"
  248. fi
  249. if test -d "$tor_cv_libevent_dir/include" ; then
  250. CPPFLAGS="-I$tor_cv_libevent_dir/include $CPPFLAGS"
  251. else
  252. CPPFLAGS="-I$tor_cv_libevent_dir $CPPFLAGS"
  253. fi
  254. fi
  255. if test -z "$CROSS_COMPILE"; then
  256. AC_CACHE_CHECK([whether we need extra options to link libevent],
  257. tor_cv_libevent_linker_option, [
  258. saved_LDFLAGS="$LDFLAGS"
  259. le_runs=no
  260. linked_with=nothing
  261. for le_extra in "" "-Wl,-R$le_libdir" "-R$le_libdir" "-Wl,-rpath,$le_libdir" ; do
  262. LDFLAGS="$le_extra $saved_LDFLAGS"
  263. AC_TRY_RUN([void *event_init(void);
  264. int main(int c, char **v) {
  265. event_init(); return 0;
  266. }],
  267. libevent_runs=yes, libevent_runs=no, libevent_runs=cross)
  268. if test $libevent_runs != no ; then
  269. if test -z "$le_extra" ; then
  270. tor_cv_libevent_linker_option='(none)'
  271. else
  272. tor_cv_libevent_linker_option=$le_extra
  273. fi
  274. le_runs=yes
  275. break
  276. fi
  277. done
  278. if test $le_runs = no ; then
  279. AC_MSG_ERROR([Found linkable libevent in $tor_cv_libevent_dir, but it doesn't run, even with -R. Maybe specify another using --with-libevent-dir?])
  280. fi
  281. LDFLAGS="$saved_LDFLAGS"
  282. ])
  283. if test $tor_cv_libevent_linker_option != '(none)' ; then
  284. LDFLAGS="$tor_cv_libevent_linker_option $LDFLAGS"
  285. fi
  286. fi
  287. dnl Now check for particular libevent functions.
  288. AC_CHECK_FUNCS(event_get_version event_get_method event_set_log_callback)
  289. dnl ------------------------------------------------------
  290. dnl Where do you live, openssl? And how do we call you?
  291. AC_CACHE_CHECK([for OpenSSL directory], tor_cv_openssl_dir, [
  292. saved_LIBS="$LIBS"
  293. saved_LDFLAGS="$LDFLAGS"
  294. saved_CPPFLAGS="$CPPFLAGS"
  295. ssl_found=no
  296. for ssldir in $tryssldir "" $prefix /usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /usr/pkg /opt /opt/openssl ; do
  297. LDFLAGS="$saved_LDFLAGS"
  298. if test $bwin32 = true; then
  299. LIBS="$saved_LIBS -lssl -lcrypto -lws2_32 -lgdi32"
  300. else
  301. LIBS="$saved_LIBS -lssl -lcrypto"
  302. fi
  303. # Skip the directory if it isn't there.
  304. if test ! -z "$ssldir" -a ! -d "$ssldir" ; then
  305. continue;
  306. fi
  307. if test ! -z "$ssldir" ; then
  308. if test -d "$ssldir/lib" ; then
  309. LDFLAGS="-L$ssldir/lib $LDFLAGS"
  310. else
  311. LDFLAGS="-L$ssldir $LDFLAGS"
  312. fi
  313. if test -d "$ssldir/include" ; then
  314. CPPFLAGS="-I$ssldir/include $CPPFLAGS"
  315. else
  316. CPPFLAGS="-I$ssldir $CPPFLAGS"
  317. fi
  318. fi
  319. # Can I link it?
  320. AC_TRY_LINK([#include <openssl/rand.h>],
  321. [ RAND_add((void*)0,0,0); ],
  322. [ openssl_linked=yes ], [ openssl_linked=no ])
  323. if test $openssl_linked = yes; then
  324. if test ! -z "$ssldir" ; then
  325. tor_cv_openssl_dir=$ssldir
  326. else
  327. tor_cv_openssl_dir="(system)"
  328. fi
  329. ssl_found=yes
  330. break
  331. fi
  332. done
  333. LIBS="$saved_LIBS"
  334. LDFLAGS="$saved_LDFLAGS"
  335. CPPFLAGS="$saved_CPPFLAGS"
  336. if test $ssl_found = no ; then
  337. AC_MSG_ERROR([Could not find a linkable OpenSSL. You can specify an explicit path using --with-ssl-dir])
  338. fi
  339. ])
  340. if test $bwin32 = true; then
  341. LIBS="$LIBS -lssl -lcrypto -lws2_32 -lgdi32"
  342. else
  343. LIBS="$LIBS -lssl -lcrypto"
  344. fi
  345. if test "$tor_cv_openssl_dir" != "(system)"; then
  346. if test -d "$tor_cv_openssl_dir/lib" ; then
  347. LDFLAGS="-L$tor_cv_openssl_dir/lib $LDFLAGS"
  348. ssl_libdir="$tor_cv_openssl_dir/lib"
  349. else
  350. LDFLAGS="-L$tor_cv_openssl_dir $LDFLAGS"
  351. ssl_libdir="$tor_cv_openssl_dir"
  352. fi
  353. if test -d "$tor_cv_openssl_dir/include" ; then
  354. CPPFLAGS="-I$tor_cv_openssl_dir/include $CPPFLAGS"
  355. else
  356. CPPFLAGS="-I$tor_cv_openssl_dir $CPPFLAGS"
  357. fi
  358. fi
  359. if test -z "$CROSS_COMPILE"
  360. then
  361. AC_CACHE_CHECK([whether we need extra options to link OpenSSL],
  362. tor_cv_openssl_linker_option, [
  363. saved_LDFLAGS="$LDFLAGS"
  364. ssl_runs=no
  365. linked_with=nothing
  366. for ssl_extra in "" "-Wl,-R$ssl_libdir" "-R$ssl_libdir" ; do
  367. LDFLAGS="$ssl_extra $saved_LDFLAGS"
  368. AC_TRY_RUN([
  369. #include <string.h>
  370. #include <openssl/rand.h>
  371. int main(void)
  372. {
  373. char a[2048];
  374. memset(a, 0, sizeof(a));
  375. RAND_add(a, sizeof(a), sizeof(a));
  376. return(RAND_status() <= 0);
  377. }
  378. ],
  379. openssl_runs=yes, openssl_runs=no, openssl_runs=cross)
  380. if test $openssl_runs != no ; then
  381. if test "$linked_with" = nothing; then
  382. linked_with="$ssl_extra"
  383. fi
  384. AC_TRY_RUN([
  385. #include <openssl/opensslv.h>
  386. #include <openssl/crypto.h>
  387. int main(void) {
  388. return (OPENSSL_VERSION_NUMBER == SSLeay()) == 0;
  389. }],
  390. right_version=yes, right_version=no)
  391. if test "$right_version" = yes; then
  392. if test -z "$ssl_extra" ; then
  393. tor_cv_openssl_linker_option='(none)'
  394. else
  395. tor_cv_openssl_linker_option=$ssl_extra
  396. fi
  397. ssl_runs=yes
  398. break
  399. fi
  400. fi
  401. done
  402. if test $ssl_runs = no ; then
  403. if test "$linked_with" = 'nothing' ; then
  404. AC_MSG_ERROR([Found linkable OpenSSL in $tor_cv_openssl_dir, but it doesn't run, even with -R. Maybe specify another using --with-ssl-dir?])
  405. else
  406. if test -z "$linked_with" ; then
  407. tor_cv_openssl_linker_option='(none)'
  408. else
  409. tor_cv_openssl_linker_option=$linked_with
  410. fi
  411. AC_MSG_WARN([I managed to make OpenSSL link and run, but I couldn't make it link against the same version I found header files for.])
  412. fi
  413. fi
  414. LDFLAGS="$saved_LDFLAGS"
  415. ])
  416. if test "$tor_cv_openssl_linker_option" != '(none)' ; then
  417. LDFLAGS="$tor_cv_openssl_linker_option $LDFLAGS"
  418. fi
  419. fi
  420. dnl Make sure to enable support for large off_t if avalable.
  421. AC_SYS_LARGEFILE
  422. dnl The warning message here is no longer strictly accurate.
  423. AC_CHECK_HEADERS(unistd.h string.h signal.h ctype.h sys/stat.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))
  424. AC_CHECK_HEADERS(netdb.h sys/ioctl.h sys/socket.h arpa/inet.h netinet/in.h pwd.h grp.h)
  425. AC_CHECK_HEADERS(event.h, , AC_MSG_ERROR(Libevent header (event.h) not found. Tor requires libevent to build.),
  426. [#ifdef HAVE_SYS_TYPES_H
  427. #include <sys/types.h>
  428. #endif
  429. #ifdef HAVE_SYS_TIME_H
  430. #include <sys/time.h>
  431. #else
  432. struct timeval {
  433. long tv_sec;
  434. long tv_usec;
  435. };
  436. #endif])
  437. AC_CHECK_HEADERS(zlib.h, , AC_MSG_ERROR(Zlib header (zlib.h) not found. Tor requires zlib to build. You may need to install a zlib development package.))
  438. dnl These headers are not essential
  439. 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 netintet/in.h netinet/in6.h sys/syslimits.h)
  440. AC_CHECK_HEADERS(net/if.h, [net_if_found=1], [net_if_found=0],
  441. [#ifdef HAVE_SYS_TYPES_H
  442. #include <sys/types.h>
  443. #endif
  444. #ifdef HAVE_SYS_SOCKET_H
  445. #include <sys/socket.h>
  446. #endif])
  447. AC_CHECK_HEADERS(net/pfvar.h, [net_pfvar_found=1], [net_pfvar_found=0],
  448. [#ifdef HAVE_SYS_TYPES_H
  449. #include <sys/types.h>
  450. #endif
  451. #ifdef HAVE_SYS_SOCKET_H
  452. #include <sys/socket.h>
  453. #endif
  454. #ifdef HAVE_NET_IF_H
  455. #include <net/if.h>
  456. #endif])
  457. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  458. [linux_netfilter_ipv4=1], [linux_netfilter_ipv4=0],
  459. [#ifdef HAVE_SYS_TYPES_H
  460. #include <sys/types.h>
  461. #endif
  462. #ifdef HAVE_SYS_SOCKET_H
  463. #include <sys/socket.h>
  464. #endif])
  465. if test x$transparent = xtrue ; then
  466. transparent_ok=0
  467. if test x$net_if_found = x1 -a x$net_pfvar_found = x1 ; then
  468. transparent_ok=1
  469. fi
  470. if test x$linux_netfilter_ipv4 = x1 ; then
  471. transparent_ok=1
  472. fi
  473. if test x$transparent_ok = x1 ; then
  474. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  475. case $host in
  476. *-*-openbsd*)
  477. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  478. esac
  479. else
  480. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  481. fi
  482. fi
  483. AC_FUNC_FSEEKO
  484. AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
  485. [#ifdef HAVE_SYS_TYPES_H
  486. #include <sys/types.h>
  487. #endif
  488. #ifdef HAVE_SYS_TIME_H
  489. #include <sys/time.h>
  490. #endif])
  491. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  492. dnl Watch out.
  493. AC_CHECK_SIZEOF(int8_t)
  494. AC_CHECK_SIZEOF(int16_t)
  495. AC_CHECK_SIZEOF(int32_t)
  496. AC_CHECK_SIZEOF(int64_t)
  497. AC_CHECK_SIZEOF(uint8_t)
  498. AC_CHECK_SIZEOF(uint16_t)
  499. AC_CHECK_SIZEOF(uint32_t)
  500. AC_CHECK_SIZEOF(uint64_t)
  501. AC_CHECK_SIZEOF(intptr_t)
  502. AC_CHECK_SIZEOF(uintptr_t)
  503. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  504. AC_CHECK_SIZEOF(char)
  505. AC_CHECK_SIZEOF(short)
  506. AC_CHECK_SIZEOF(int)
  507. AC_CHECK_SIZEOF(long)
  508. AC_CHECK_SIZEOF(long long)
  509. AC_CHECK_SIZEOF(__int64)
  510. AC_CHECK_SIZEOF(void *)
  511. AC_CHECK_SIZEOF(time_t)
  512. AC_CHECK_SIZEOF(size_t)
  513. AC_CHECK_TYPES([uint, u_char])
  514. AC_CHECK_TYPES([struct in6_addr, struct sockaddr_storage], , ,
  515. [#ifdef HAVE_SYS_TYPES_H
  516. #include <sys/types.h>
  517. #endif
  518. #ifdef HAVE_NETINET_IN_H
  519. #include <netinet/in.h>
  520. #endif
  521. #ifdef HAVE_NETINET_IN6_H
  522. #include <netinet/in6.h>
  523. #endif
  524. #ifdef HAVE_SYS_SOCKET_H
  525. #include <sys/socket.h>
  526. #endif])
  527. AC_CHECK_TYPES([rlim_t], , ,
  528. [#ifdef HAVE_SYS_TYPES_H
  529. #include <sys/types.h>
  530. #endif
  531. #ifdef HAVE_SYS_TIME_H
  532. #include <sys/time.h>
  533. #endif
  534. #ifdef HAVE_SYS_RESOURCE_H
  535. #include <sys/resource.h>
  536. #endif
  537. ])
  538. if test -z "$CROSS_COMPILE"; then
  539. AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
  540. AC_TRY_RUN([
  541. #ifdef HAVE_SYS_TYPES_H
  542. #include <sys/types.h>
  543. #endif
  544. #ifdef HAVE_SYS_TIME_H
  545. #include <sys/time.h>
  546. #endif
  547. #ifdef HAVE_TIME_H
  548. #include <time.h>
  549. #endif
  550. int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }],
  551. tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes)
  552. ])
  553. else
  554. # Cross-compiling; let's hope the target platform isn't loony.
  555. AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  556. tor_cv_time_t_signed=yes
  557. fi
  558. if test $tor_cv_time_t_signed = yes; then
  559. AC_DEFINE([TIME_T_IS_SIGNED], 1,
  560. [Define to 1 iff time_t is signed])
  561. fi
  562. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  563. #ifdef HAVE_SYS_SOCKET_H
  564. #include <sys/socket.h>
  565. #endif
  566. ])
  567. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  568. AC_CHECK_SIZEOF(cell_t)
  569. # Now make sure that NULL can be represented as zero bytes.
  570. if test -z "$CROSS_COMPILE"; then
  571. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  572. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  573. [[#include <stdlib.h>
  574. #include <string.h>
  575. #include <stdio.h>
  576. #ifdef HAVE_STDDEF_H
  577. #include <stddef.h>
  578. #endif
  579. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  580. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  581. [tor_cv_null_is_zero=yes],
  582. [tor_cv_null_is_zero=no],
  583. [tor_cv_null_is_zero=cross])])
  584. else
  585. # Cross-compiling; let's hope that the target isn't raving mad.
  586. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  587. tor_cv_null_is_zero=yes
  588. fi
  589. if test $tor_cv_null_is_zero = yes; then
  590. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  591. [Define to 1 iff memset(0) sets pointers to NULL])
  592. fi
  593. # And what happens when we malloc zero?
  594. if test -z "$CROSS_COMPILE"; then
  595. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  596. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  597. [[#include <stdlib.h>
  598. #include <string.h>
  599. #include <stdio.h>
  600. #ifdef HAVE_STDDEF_H
  601. #include <stddef.h>
  602. #endif
  603. int main () { return malloc(0)?0:1; }]])],
  604. [tor_cv_malloc_zero_works=yes],
  605. [tor_cv_malloc_zero_works=no],
  606. [tor_cv_malloc_zero_works=cross])])
  607. else
  608. # Cross-compiling; let's hope that the target isn't raving mad.
  609. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  610. tor_cv_malloc_zero_works=no
  611. fi
  612. if test $tor_cv_malloc_zero_works = yes; then
  613. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  614. [Define to 1 iff malloc(0) returns a pointer])
  615. fi
  616. # whether we seem to be in a 2s-complement world.
  617. if test -z "$CROSS_COMPILE"; then
  618. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  619. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  620. [[int main () { int problem = ((-99) != (~99)+1);
  621. return problem ? 1 : 0; }]])],
  622. [tor_cv_twos_complement=yes],
  623. [tor_cv_twos_complement=no],
  624. [tor_cv_twos_complement=cross])])
  625. else
  626. # Cross-compiling; let's hope that the target isn't raving mad.
  627. AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
  628. tor_cv_twos_complement=yes
  629. fi
  630. if test $tor_cv_twos_complement = yes; then
  631. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  632. [Define to 1 iff we represent negative integers with two's complement])
  633. fi
  634. # Whether we should use the dmalloc memory allocation debugging library.
  635. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  636. AC_ARG_WITH(dmalloc,
  637. [ --with-dmalloc Use debug memory allocation library. ],
  638. [if [[ "$withval" = "yes" ]]; then
  639. dmalloc=1
  640. AC_MSG_RESULT(yes)
  641. else
  642. dmalloc=1
  643. AC_MSG_RESULT(no)
  644. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  645. )
  646. if [[ $dmalloc -eq 1 ]]; then
  647. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  648. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  649. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  650. AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
  651. fi
  652. # Allow user to specify an alternate syslog facility
  653. AC_ARG_WITH(syslog-facility,
  654. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  655. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  656. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  657. AC_SUBST(LOGFACILITY)
  658. # Check for gethostbyname_r in all its glorious incompatible versions.
  659. # (This logic is based on that in Python's configure.in)
  660. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  661. [Define this if you have any gethostbyname_r()])
  662. AC_CHECK_FUNC(gethostbyname_r, [
  663. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  664. OLD_CFLAGS=$CFLAGS
  665. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  666. AC_TRY_COMPILE([
  667. #include <netdb.h>
  668. ], [
  669. char *cp1, *cp2;
  670. struct hostent *h1, *h2;
  671. int i1, i2;
  672. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  673. ], [
  674. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  675. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  676. [Define this if gethostbyname_r takes 6 arguments])
  677. AC_MSG_RESULT(6)
  678. ], [
  679. AC_TRY_COMPILE([
  680. #include <netdb.h>
  681. ], [
  682. char *cp1, *cp2;
  683. struct hostent *h1;
  684. int i1, i2;
  685. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  686. ], [
  687. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  688. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  689. [Define this if gethostbyname_r takes 5 arguments])
  690. AC_MSG_RESULT(5)
  691. ], [
  692. AC_TRY_COMPILE([
  693. #include <netdb.h>
  694. ], [
  695. char *cp1;
  696. struct hostent *h1;
  697. struct hostent_data hd;
  698. (void) gethostbyname_r(cp1,h1,&hd);
  699. ], [
  700. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  701. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  702. [Define this if gethostbyname_r takes 3 arguments])
  703. AC_MSG_RESULT(3)
  704. ], [
  705. AC_MSG_RESULT(0)
  706. ])
  707. ])
  708. ])
  709. CFLAGS=$OLD_CFLAGS
  710. ])
  711. AC_CACHE_CHECK([whether the C compiler supports __func__],
  712. tor_cv_have_func_macro,
  713. AC_COMPILE_IFELSE([
  714. #include <stdio.h>
  715. int main(int c, char **v) { puts(__func__); }],
  716. tor_cv_have_func_macro=yes,
  717. tor_cv_have_func_macro=no))
  718. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  719. tor_cv_have_FUNC_macro,
  720. AC_COMPILE_IFELSE([
  721. #include <stdio.h>
  722. int main(int c, char **v) { puts(__FUNC__); }],
  723. tor_cv_have_FUNC_macro=yes,
  724. tor_cv_have_FUNC_macro=no))
  725. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  726. tor_cv_have_FUNCTION_macro,
  727. AC_COMPILE_IFELSE([
  728. #include <stdio.h>
  729. int main(int c, char **v) { puts(__FUNCTION__); }],
  730. tor_cv_have_FUNCTION_macro=yes,
  731. tor_cv_have_FUNCTION_macro=no))
  732. if test $tor_cv_have_func_macro = 'yes'; then
  733. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  734. fi
  735. if test $tor_cv_have_FUNC_macro = 'yes'; then
  736. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  737. fi
  738. if test $tor_cv_have_FUNCTION_macro = 'yes'; then
  739. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  740. [Defined if the compiler supports __FUNCTION__])
  741. fi
  742. # $prefix stores the value of the --prefix command line option, or
  743. # NONE if the option wasn't set. In the case that it wasn't set, make
  744. # it be the default, so that we can use it to expand directories now.
  745. if test "x$prefix" = "xNONE"; then
  746. prefix=$ac_default_prefix
  747. fi
  748. # and similarly for $exec_prefix
  749. if test "x$exec_prefix" = "xNONE"; then
  750. exec_prefix=$prefix
  751. fi
  752. if test "x$CONFDIR" = "x"; then
  753. CONFDIR=`eval echo $sysconfdir/tor`
  754. fi
  755. AC_SUBST(CONFDIR)
  756. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  757. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  758. BINDIR=`eval echo $bindir`
  759. AC_SUBST(BINDIR)
  760. LOCALSTATEDIR=`eval echo $localstatedir`
  761. AC_SUBST(LOCALSTATEDIR)
  762. AH_TEMPLATE([LOCALSTATEDIR], [Default location to store state files.])
  763. AC_DEFINE_UNQUOTED(LOCALSTATEDIR,"$LOCALSTATEDIR")
  764. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  765. # than autoconf's macros like.
  766. if test $ac_cv_c_compiler_gnu = yes; then
  767. CFLAGS="$CFLAGS -Wall -g -O2"
  768. else
  769. CFLAGS="$CFLAGS -g -O"
  770. enable_gcc_warnings=no
  771. fi
  772. # Add some more warnings which we use in the cvs version but not in the
  773. # released versions. (Some relevant gcc versions can't handle these.)
  774. if test x$enable_gcc_warnings = xyes; then
  775. AC_TRY_COMPILE([], [
  776. #if !defined(__GNUC__) || (__GNUC__ < 4)
  777. #error
  778. #endif], have_gcc4=yes, have_gcc4=no)
  779. CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Wwrite-strings -Waggregate-return -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wbad-function-cast -Wswitch-enum -Werror"
  780. if test x$have_gcc4 = xyes ; then
  781. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  782. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  783. fi
  784. ##This will break the world on some 64-bit architectures
  785. # CFLAGS="$CFLAGS -Winline"
  786. fi
  787. AC_OUTPUT(Makefile tor.spec contrib/tor.sh contrib/torctl contrib/torify contrib/tor.logrotate contrib/Makefile contrib/osx/Makefile contrib/osx/TorBundleDesc.plist contrib/osx/TorBundleInfo.plist contrib/osx/TorDesc.plist contrib/osx/TorInfo.plist contrib/osx/TorStartupDesc.plist src/config/torrc.sample doc/tor.1 src/Makefile doc/Makefile doc/design-paper/Makefile doc/spec/Makefile src/config/Makefile src/common/Makefile src/or/Makefile src/win32/Makefile src/tools/Makefile contrib/suse/Makefile contrib/suse/tor.sh)
  788. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  789. ./contrib/updateVersions.pl
  790. fi