configure.in 24 KB

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  1. dnl $Id$
  2. dnl Copyright (c) 2001-2004, Roger Dingledine
  3. dnl Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson
  4. dnl See LICENSE for licensing information
  5. AC_INIT
  6. AM_INIT_AUTOMAKE(tor, 0.1.2.2-alpha-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. fi ;;
  47. *-*-solaris* )
  48. # Don't try multithreading on solaris -- cpuworkers seem to lock.
  49. AC_MSG_NOTICE([You are running Solaris; Sometimes threading makes
  50. cpu workers lock up here, so I will disable threads.])
  51. enable_threads="no";;
  52. *)
  53. enable_threads="yes";;
  54. esac
  55. fi
  56. if test $enable_threads = "yes"; then
  57. AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
  58. fi
  59. case $host in
  60. *-*-solaris* )
  61. AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
  62. ;;
  63. esac
  64. AC_ARG_ENABLE(gcc-warnings,
  65. AC_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
  66. AC_PROG_CC
  67. AC_PROG_MAKE_SET
  68. AC_PROG_RANLIB
  69. # The big search for OpenSSL
  70. # copied from openssh's configure.ac
  71. tryssldir=""
  72. AC_ARG_WITH(ssl-dir,
  73. [ --with-ssl-dir=PATH Specify path to OpenSSL installation ],
  74. [
  75. if test "x$withval" != "xno" ; then
  76. tryssldir=$withval
  77. fi
  78. ]
  79. )
  80. trylibeventdir=""
  81. AC_ARG_WITH(libevent-dir,
  82. [ --with-libevent-dir=PATH Specify path to Libevent installation ],
  83. [
  84. if test "x$withval" != "xno" ; then
  85. trylibeventdir=$withval
  86. fi
  87. ]
  88. )
  89. TORUSER=_tor
  90. AC_ARG_WITH(tor-user,
  91. [ --with-tor-user=NAME Specify username for tor daemon ],
  92. [
  93. TORUSER=$withval
  94. ]
  95. )
  96. AC_SUBST(TORUSER)
  97. TORGROUP=_tor
  98. AC_ARG_WITH(tor-group,
  99. [ --with-tor-group=NAME Specify group name for tor daemon ],
  100. [
  101. TORGROUP=$withval
  102. ]
  103. )
  104. AC_SUBST(TORGROUP)
  105. dnl If WIN32 is defined and non-zero, we are building for win32
  106. AC_MSG_CHECKING([for win32])
  107. AC_TRY_RUN([int main(int c, char **v) {
  108. #ifdef WIN32
  109. #if WIN32
  110. return 0;
  111. #else
  112. return 1;
  113. #endif
  114. #else
  115. return 2;
  116. #endif
  117. }],
  118. bwin32=true; AC_MSG_RESULT([yes]),
  119. bwin32=false; AC_MSG_RESULT([no])
  120. )
  121. if test $bwin32 = true; then
  122. AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
  123. fi
  124. AC_SEARCH_LIBS(socket, [socket])
  125. AC_SEARCH_LIBS(gethostbyname, [nsl])
  126. AC_SEARCH_LIBS(dlopen, [dl])
  127. AC_SEARCH_LIBS(inet_aton, [resolv])
  128. if test $enable_threads = "yes"; then
  129. AC_SEARCH_LIBS(pthread_create, [pthread])
  130. AC_SEARCH_LIBS(pthread_detach, [pthread])
  131. fi
  132. dnl ------------------------------------------------------
  133. dnl Where do you live, libevent? And how do we call you?
  134. AC_CACHE_CHECK([for libevent directory], ac_cv_libevent_dir, [
  135. saved_LIBS="$LIBS"
  136. saved_LDFLAGS="$LDFLAGS"
  137. saved_CPPFLAGS="$CPPFLAGS"
  138. le_found=no
  139. for ledir in $trylibeventdir "" $prefix /usr/local ; do
  140. LDFLAGS="$saved_LDFLAGS"
  141. if test $bwin32 = true; then
  142. LIBS="$saved_LIBS -levent -lws2_32"
  143. else
  144. LIBS="$saved_LIBS -levent"
  145. fi
  146. # Skip the directory if it isn't there.
  147. if test ! -z "$ledir" -a ! -d "$ledir" ; then
  148. continue;
  149. fi
  150. if test ! -z "$ledir" ; then
  151. if test -d "$ledir/lib" ; then
  152. LDFLAGS="-L$ledir/lib $LDFLAGS"
  153. else
  154. LDFLAGS="-L$ledir $LDFLAGS"
  155. fi
  156. if test -d "$ledir/include" ; then
  157. CPPFLAGS="-I$ledir/include $CPPFLAGS"
  158. else
  159. CPPFLAGS="-I$ledir $CPPFLAGS"
  160. fi
  161. fi
  162. # Can I compile and link it?
  163. AC_TRY_LINK([#include <sys/time.h>
  164. #include <sys/types.h>
  165. #include <event.h>], [ event_init(); ],
  166. [ libevent_linked=yes ], [ libevent_linked=no ])
  167. if test $libevent_linked = yes; then
  168. if test ! -z "$ledir" ; then
  169. ac_cv_libevent_dir=$ledir
  170. else
  171. ac_cv_libevent_dir="(system)"
  172. fi
  173. le_found=yes
  174. break
  175. fi
  176. done
  177. LIBS="$saved_LIBS"
  178. LDFLAGS="$saved_LDFLAGS"
  179. CPPFLAGS="$saved_CPPFLAGS"
  180. if test $le_found = no ; then
  181. AC_MSG_ERROR([Could not find a linkable libevent. You can specify an explicit path using --with-libevent-dir])
  182. fi
  183. ])
  184. if test $bwin32 = true; then
  185. LIBS="$LIBS -levent -lws2_32"
  186. else
  187. LIBS="$LIBS -levent"
  188. fi
  189. if test $ac_cv_libevent_dir != "(system)"; then
  190. if test -d "$ac_cv_libevent_dir/lib" ; then
  191. LDFLAGS="-L$ac_cv_libevent_dir/lib $LDFLAGS"
  192. le_libdir="$ac_cv_libevent_dir/lib"
  193. else
  194. LDFLAGS="-L$ac_cv_libevent_dir $LDFLAGS"
  195. le_libdir="$ac_cv_libevent_dir"
  196. fi
  197. if test -d "$ac_cv_libevent_dir/include" ; then
  198. CPPFLAGS="-I$ac_cv_libevent_dir/include $CPPFLAGS"
  199. else
  200. CPPFLAGS="-I$ac_cv_libevent_dir $CPPFLAGS"
  201. fi
  202. fi
  203. if test -z "$CROSS_COMPILE"; then
  204. AC_CACHE_CHECK([whether we need extra options to link libevent],
  205. ac_cv_libevent_linker_option, [
  206. saved_LDFLAGS="$LDFLAGS"
  207. le_runs=no
  208. linked_with=nothing
  209. for le_extra in "" "-Wl,-R$le_libdir" "-R$le_libdir" ; do
  210. LDFLAGS="$le_extra $saved_LDFLAGS"
  211. AC_TRY_RUN([void *event_init(void);
  212. int main(int c, char **v) {
  213. event_init(); return 0;
  214. }],
  215. libevent_runs=yes, libevent_runs=no)
  216. if test $libevent_runs = yes ; then
  217. if test -z "$le_extra" ; then
  218. ac_cv_libevent_linker_option='(none)'
  219. else
  220. ac_cv_libevent_linker_option=$le_extra
  221. fi
  222. le_runs=yes
  223. break
  224. fi
  225. done
  226. if test $le_runs = no ; then
  227. AC_MSG_ERROR([Found linkable libevent in $ac_cv_libevent_dir, but it doesn't run, even with -R. Maybe specify another using --with-libevent-dir?])
  228. fi
  229. LDFLAGS="$saved_LDFLAGS"
  230. ])
  231. if test $ac_cv_libevent_linker_option != '(none)' ; then
  232. LDFLAGS="$ac_cv_libevent_linker_option $LDFLAGS"
  233. fi
  234. fi
  235. dnl ------------------------------------------------------
  236. dnl Where do you live, openssl? And how do we call you?
  237. AC_CACHE_CHECK([for OpenSSL directory], ac_cv_openssl_dir, [
  238. saved_LIBS="$LIBS"
  239. saved_LDFLAGS="$LDFLAGS"
  240. saved_CPPFLAGS="$CPPFLAGS"
  241. ssl_found=no
  242. for ssldir in $tryssldir "" $prefix /usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /usr/pkg /opt /opt/openssl ; do
  243. LDFLAGS="$saved_LDFLAGS"
  244. if test $bwin32 = true; then
  245. LIBS="$saved_LIBS -lssl -lcrypto -lws2_32 -lgdi32"
  246. else
  247. LIBS="$saved_LIBS -lssl -lcrypto"
  248. fi
  249. # Skip the directory if it isn't there.
  250. if test ! -z "$ssldir" -a ! -d "$ssldir" ; then
  251. continue;
  252. fi
  253. if test ! -z "$ssldir" ; then
  254. if test -d "$ssldir/lib" ; then
  255. LDFLAGS="-L$ssldir/lib $LDFLAGS"
  256. else
  257. LDFLAGS="-L$ssldir $LDFLAGS"
  258. fi
  259. if test -d "$ssldir/include" ; then
  260. CPPFLAGS="-I$ssldir/include $CPPFLAGS"
  261. else
  262. CPPFLAGS="-I$ssldir $CPPFLAGS"
  263. fi
  264. fi
  265. # Can I link it?
  266. AC_TRY_LINK([#include <openssl/rand.h>],
  267. [ RAND_add((void*)0,0,0); ],
  268. [ openssl_linked=yes ], [ openssl_linked=no ])
  269. if test $openssl_linked = yes; then
  270. if test ! -z "$ssldir" ; then
  271. ac_cv_openssl_dir=$ssldir
  272. else
  273. ac_cv_openssl_dir="(system)"
  274. fi
  275. ssl_found=yes
  276. break
  277. fi
  278. done
  279. LIBS="$saved_LIBS"
  280. LDFLAGS="$saved_LDFLAGS"
  281. CPPFLAGS="$saved_CPPFLAGS"
  282. if test $ssl_found = no ; then
  283. AC_MSG_ERROR([Could not find a linkable OpenSSL. You can specify an explicit path using --with-ssl-dir])
  284. fi
  285. ])
  286. if test $bwin32 = true; then
  287. LIBS="$LIBS -lssl -lcrypto -lws2_32 -lgdi32"
  288. else
  289. LIBS="$LIBS -lssl -lcrypto"
  290. fi
  291. if test "$ac_cv_openssl_dir" != "(system)"; then
  292. if test -d "$ac_cv_openssl_dir/lib" ; then
  293. LDFLAGS="-L$ac_cv_openssl_dir/lib $LDFLAGS"
  294. ssl_libdir="$ac_cv_openssl_dir/lib"
  295. else
  296. LDFLAGS="-L$ac_cv_openssl_dir $LDFLAGS"
  297. ssl_libdir="$ac_cv_openssl_dir"
  298. fi
  299. if test -d "$ac_cv_openssl_dir/include" ; then
  300. CPPFLAGS="-I$ac_cv_openssl_dir/include $CPPFLAGS"
  301. else
  302. CPPFLAGS="-I$ac_cv_openssl_dir $CPPFLAGS"
  303. fi
  304. fi
  305. if test -z "$CROSS_COMPILE"
  306. then
  307. AC_CACHE_CHECK([whether we need extra options to link OpenSSL],
  308. ac_cv_openssl_linker_option, [
  309. saved_LDFLAGS="$LDFLAGS"
  310. ssl_runs=no
  311. linked_with=nothing
  312. for ssl_extra in "" "-Wl,-R$ssl_libdir" "-R$ssl_libdir" ; do
  313. LDFLAGS="$ssl_extra $saved_LDFLAGS"
  314. AC_TRY_RUN([
  315. #include <string.h>
  316. #include <openssl/rand.h>
  317. int main(void)
  318. {
  319. char a[2048];
  320. memset(a, 0, sizeof(a));
  321. RAND_add(a, sizeof(a), sizeof(a));
  322. return(RAND_status() <= 0);
  323. }
  324. ],
  325. openssl_runs=yes, openssl_runs=no)
  326. if test $openssl_runs = yes ; then
  327. if test "$linked_with" = nothing; then
  328. linked_with="$ssl_extra"
  329. fi
  330. AC_TRY_RUN([
  331. #include <openssl/opensslv.h>
  332. #include <openssl/crypto.h>
  333. int main(void) {
  334. return (OPENSSL_VERSION_NUMBER == SSLeay()) == 0;
  335. }],
  336. right_version=yes, right_version=no)
  337. if test "$right_version" = yes; then
  338. if test -z "$ssl_extra" ; then
  339. ac_cv_openssl_linker_option='(none)'
  340. else
  341. ac_cv_openssl_linker_option=$ssl_extra
  342. fi
  343. ssl_runs=yes
  344. break
  345. fi
  346. fi
  347. done
  348. if test $ssl_runs = no ; then
  349. if test "$linked_with" = 'nothing' ; then
  350. AC_MSG_ERROR([Found linkable OpenSSL in $ac_cv_openssl_dir, but it doesn't run, even with -R. Maybe specify another using --with-ssl-dir?])
  351. else
  352. if test -z "$linked_with" ; then
  353. ac_cv_openssl_linker_option='(none)'
  354. else
  355. ac_cv_openssl_linker_option=$linked_with
  356. fi
  357. AC_MSG_WARN([I managed to make OpenSSL link and run, but I couldn't make it link against the same version I found header files for.])
  358. fi
  359. fi
  360. LDFLAGS="$saved_LDFLAGS"
  361. ])
  362. if test "$ac_cv_openssl_linker_option" != '(none)' ; then
  363. LDFLAGS="$ac_cv_openssl_linker_option $LDFLAGS"
  364. fi
  365. fi
  366. dnl Make sure to enable support for large off_t if avalable.
  367. AC_SYS_LARGEFILE
  368. dnl The warning message here is no longer strictly accurate.
  369. AC_CHECK_HEADERS(unistd.h string.h signal.h ctype.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))
  370. AC_CHECK_HEADERS(netdb.h sys/ioctl.h sys/socket.h arpa/inet.h netinet/in.h pwd.h grp.h)
  371. AC_CHECK_HEADERS(event.h, , AC_MSG_ERROR(Libevent header (event.h) not found. Tor requires libevent to build.),
  372. [#ifdef HAVE_SYS_TYPES_H
  373. #include <sys/types.h>
  374. #endif
  375. #ifdef HAVE_SYS_TIME_H
  376. #include <sys/time.h>
  377. #else
  378. struct timeval {
  379. long tv_sec;
  380. long tv_usec;
  381. };
  382. #endif])
  383. 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.))
  384. dnl These headers are not essential
  385. 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)
  386. AC_CHECK_HEADERS(net/if.h, [net_if_found=1], [net_if_found=0],
  387. [#ifdef HAVE_SYS_TYPES_H
  388. #include <sys/types.h>
  389. #endif
  390. #ifdef HAVE_SYS_SOCKET_H
  391. #include <sys/socket.h>
  392. #endif])
  393. AC_CHECK_HEADERS(net/pfvar.h, [net_pfvar_found=1], [net_pfvar_found=0],
  394. [#ifdef HAVE_SYS_TYPES_H
  395. #include <sys/types.h>
  396. #endif
  397. #ifdef HAVE_SYS_SOCKET_H
  398. #include <sys/socket.h>
  399. #endif
  400. #ifdef HAVE_NET_IF_H
  401. #include <net/if.h>
  402. #endif])
  403. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  404. [linux_netfilter_ipv4=1], [linux_netfilter_ipv4=0],
  405. [#ifdef HAVE_SYS_SOCKET_H
  406. #include <sys/socket.h>
  407. #endif])
  408. AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit strlcat strlcpy strtoull ftello getaddrinfo localtime_r gmtime_r event_get_version event_get_method event_set_log_callback memmem strtok_r)
  409. if test $enable_threads = "yes"; then
  410. AC_CHECK_HEADERS(pthread.h)
  411. AC_CHECK_FUNCS(pthread_create)
  412. fi
  413. if test x$transparent = xtrue ; then
  414. transparent_ok=0
  415. if test x$net_if_found = x1 -a x$net_pfvar_found = x1 ; then
  416. transparent_ok=1
  417. fi
  418. if test x$linux_netfilter_ipv4 = x1 ; then
  419. transparent_ok=1
  420. fi
  421. if test x$transparent_ok = x1 ; then
  422. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  423. case $host in
  424. *-*-openbsd*)
  425. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  426. esac
  427. else
  428. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  429. fi
  430. fi
  431. AC_FUNC_FSEEKO
  432. AC_CHECK_MEMBERS([struct timeval.tv_sec])
  433. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  434. dnl Watch out.
  435. AC_CHECK_SIZEOF(int8_t)
  436. AC_CHECK_SIZEOF(int16_t)
  437. AC_CHECK_SIZEOF(int32_t)
  438. AC_CHECK_SIZEOF(int64_t)
  439. AC_CHECK_SIZEOF(uint8_t)
  440. AC_CHECK_SIZEOF(uint16_t)
  441. AC_CHECK_SIZEOF(uint32_t)
  442. AC_CHECK_SIZEOF(uint64_t)
  443. AC_CHECK_SIZEOF(intptr_t)
  444. AC_CHECK_SIZEOF(uintptr_t)
  445. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  446. AC_CHECK_SIZEOF(char)
  447. AC_CHECK_SIZEOF(short)
  448. AC_CHECK_SIZEOF(int)
  449. AC_CHECK_SIZEOF(long)
  450. AC_CHECK_SIZEOF(long long)
  451. AC_CHECK_SIZEOF(__int64)
  452. AC_CHECK_SIZEOF(void *)
  453. AC_CHECK_SIZEOF(time_t)
  454. AC_CHECK_SIZEOF(size_t)
  455. AC_CHECK_TYPES([uint, u_char])
  456. if test -z "$CROSS_COMPILE"; then
  457. AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
  458. AC_TRY_RUN([
  459. int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }],
  460. tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes)
  461. ])
  462. else
  463. # Cross-compiling; let's hope the target platform isn't loony.
  464. AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  465. tor_cv_time_t_signed=yes
  466. fi
  467. if test $tor_cv_time_t_signed = yes; then
  468. AC_DEFINE([TIME_T_IS_SIGNED], 1,
  469. [Define to 1 iff time_t is signed])
  470. fi
  471. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  472. #ifdef HAVE_SYS_SOCKET_H
  473. #include <sys/socket.h>
  474. #endif
  475. ])
  476. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  477. AC_CHECK_SIZEOF(cell_t)
  478. # Now make sure that NULL can be represented as zero bytes.
  479. if test -z "$CROSS_COMPILE"; then
  480. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  481. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  482. [[#include <stdlib.h>
  483. #include <string.h>
  484. #include <stdio.h>
  485. #ifdef HAVE_STDDEF_H
  486. #include <stddef.h>
  487. #endif
  488. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  489. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  490. [tor_cv_null_is_zero=yes],
  491. [tor_cv_null_is_zero=no],
  492. [tor_cv_null_is_zero=cross])])
  493. else
  494. # Cross-compiling; let's hope that the target isn't raving mad.
  495. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  496. tor_cv_null_is_zero=yes
  497. fi
  498. if test $tor_cv_null_is_zero = yes; then
  499. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  500. [Define to 1 iff memset(0) sets pointers to NULL])
  501. fi
  502. # And what happens when we malloc zero?
  503. if test -z "$CROSS_COMPILE"; then
  504. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  505. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  506. [[#include <stdlib.h>
  507. #include <string.h>
  508. #include <stdio.h>
  509. #ifdef HAVE_STDDEF_H
  510. #include <stddef.h>
  511. #endif
  512. int main () { return malloc(0)?0:1; }]])],
  513. [tor_cv_malloc_zero_works=yes],
  514. [tor_cv_malloc_zero_works=no],
  515. [tor_cv_malloc_zero_works=cross])])
  516. else
  517. # Cross-compiling; let's hope that the target isn't raving mad.
  518. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  519. tor_cv_malloc_zero_works=no
  520. fi
  521. if test $tor_cv_malloc_zero_works = yes; then
  522. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  523. [Define to 1 iff malloc(0) returns a pointer])
  524. fi
  525. # whether we seem to be in a 2s-complement world.
  526. if test -z "$CROSS_COMPILE"; then
  527. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  528. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  529. [[int main () { int problem = ((-99) != (~99)+1);
  530. return problem ? 1 : 0; }]])],
  531. [tor_cv_twos_complement=yes],
  532. [tor_cv_twos_complement=no],
  533. [tor_cv_twos_complement=cross])])
  534. else
  535. # Cross-compiling; let's hope that the target isn't raving mad.
  536. AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
  537. tor_cv_twos_complement=yes
  538. fi
  539. if test $tor_cv_twos_complement = yes; then
  540. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  541. [Define to 1 iff we represent negative integers with two's complement])
  542. fi
  543. # Whether we should use the dmalloc memory allocation debugging library.
  544. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  545. AC_ARG_WITH(dmalloc,
  546. [ --with-dmalloc Use debug memory allocation library. ],
  547. [if [[ "$withval" = "yes" ]]; then
  548. dmalloc=1
  549. AC_MSG_RESULT(yes)
  550. else
  551. dmalloc=1
  552. AC_MSG_RESULT(no)
  553. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  554. )
  555. if [[ $dmalloc -eq 1 ]]; then
  556. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  557. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  558. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  559. AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
  560. fi
  561. # Allow user to specify an alternate syslog facility
  562. AC_ARG_WITH(syslog-facility,
  563. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  564. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  565. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  566. AC_SUBST(LOGFACILITY)
  567. # Check for gethostbyname_r in all its glorious incompatible versions.
  568. # (This logic is based on that in Python's configure.in)
  569. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  570. [Define this if you have any gethostbyname_r()])
  571. AC_CHECK_FUNC(gethostbyname_r, [
  572. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  573. OLD_CFLAGS=$CFLAGS
  574. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  575. AC_TRY_COMPILE([
  576. #include <netdb.h>
  577. ], [
  578. char *cp1, *cp2;
  579. struct hostent *h1, *h2;
  580. int i1, i2;
  581. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  582. ], [
  583. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  584. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  585. [Define this if gethostbyname_r takes 6 arguments])
  586. AC_MSG_RESULT(6)
  587. ], [
  588. AC_TRY_COMPILE([
  589. #include <netdb.h>
  590. ], [
  591. char *cp1, *cp2;
  592. struct hostent *h1;
  593. int i1, i2;
  594. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  595. ], [
  596. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  597. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  598. [Define this if gethostbyname_r takes 5 arguments])
  599. AC_MSG_RESULT(5)
  600. ], [
  601. AC_TRY_COMPILE([
  602. #include <netdb.h>
  603. ], [
  604. char *cp1;
  605. struct hostent *h1;
  606. struct hostent_data hd;
  607. (void) gethostbyname_r(cp1,h1,&hd);
  608. ], [
  609. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  610. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  611. [Define this if gethostbyname_r takes 3 arguments])
  612. AC_MSG_RESULT(3)
  613. ], [
  614. AC_MSG_RESULT(0)
  615. ])
  616. ])
  617. ])
  618. CFLAGS=$OLD_CFLAGS
  619. ])
  620. AC_CACHE_CHECK([whether the C compiler supports __func__],
  621. ac_cv_have_func_macro,
  622. AC_COMPILE_IFELSE([
  623. #include <stdio.h>
  624. int main(int c, char **v) { puts(__func__); }],
  625. ac_cv_have_func_macro=yes,
  626. ac_cv_have_func_macro=no))
  627. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  628. ac_cv_have_FUNC_macro,
  629. AC_COMPILE_IFELSE([
  630. #include <stdio.h>
  631. int main(int c, char **v) { puts(__FUNC__); }],
  632. ac_cv_have_FUNC_macro=yes,
  633. ac_cv_have_FUNC_macro=no))
  634. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  635. ac_cv_have_FUNCTION_macro,
  636. AC_COMPILE_IFELSE([
  637. #include <stdio.h>
  638. int main(int c, char **v) { puts(__FUNCTION__); }],
  639. ac_cv_have_FUNCTION_macro=yes,
  640. ac_cv_have_FUNCTION_macro=no))
  641. if test $ac_cv_have_func_macro = 'yes'; then
  642. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  643. fi
  644. if test $ac_cv_have_FUNC_macro = 'yes'; then
  645. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  646. fi
  647. if test $ac_cv_have_FUNCTION_macro = 'yes'; then
  648. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  649. [Defined if the compiler supports __FUNCTION__])
  650. fi
  651. # $prefix stores the value of the --prefix command line option, or
  652. # NONE if the option wasn't set. In the case that it wasn't set, make
  653. # it be the default, so that we can use it to expand directories now.
  654. if test "x$prefix" = "xNONE"; then
  655. prefix=$ac_default_prefix
  656. fi
  657. # and similarly for $exec_prefix
  658. if test "x$exec_prefix" = "xNONE"; then
  659. exec_prefix=$prefix
  660. fi
  661. if test "x$CONFDIR" = "x"; then
  662. CONFDIR=`eval echo $sysconfdir/tor`
  663. fi
  664. AC_SUBST(CONFDIR)
  665. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  666. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  667. BINDIR=`eval echo $bindir`
  668. AC_SUBST(BINDIR)
  669. LOCALSTATEDIR=`eval echo $localstatedir`
  670. AC_SUBST(LOCALSTATEDIR)
  671. AH_TEMPLATE([LOCALSTATEDIR], [Default location to store state files.])
  672. AC_DEFINE_UNQUOTED(LOCALSTATEDIR,"$LOCALSTATEDIR")
  673. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  674. # than autoconf's macros like.
  675. if test $ac_cv_c_compiler_gnu = yes; then
  676. CFLAGS="$CFLAGS -Wall -g -O2"
  677. else
  678. CFLAGS="$CFLAGS -g -O"
  679. enable_gcc_warnings=no
  680. fi
  681. # Add some more warnings which we use in the cvs version but not in the
  682. # released versions. (Some relevant gcc versions can't handle these.)
  683. if test x$enable_gcc_warnings = xyes; then
  684. CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Winit-self -Wwrite-strings -Waggregate-return -Wmissing-declarations -Wmissing-field-initializers -Wredundant-decls -Winline -Wnested-externs"
  685. #-Wswitch-enums?
  686. # Add these in when you feel like fun.
  687. CFLAGS="$CFLAGS -Wbad-function-cast -Werror -Wdeclaration-after-statement -Wold-style-definition"
  688. fi
  689. 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 src/config/Makefile src/common/Makefile src/or/Makefile src/win32/Makefile src/tools/Makefile contrib/suse/Makefile contrib/suse/tor.sh)
  690. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  691. ./contrib/updateVersions.pl
  692. fi