configure.in 27 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 Copyright (c) 2007-2008, The Tor Project, Inc.
  5. dnl See LICENSE for licensing information
  6. AC_INIT
  7. AM_INIT_AUTOMAKE(tor, 0.2.1.32)
  8. AM_CONFIG_HEADER(orconfig.h)
  9. AC_CANONICAL_HOST
  10. if test -f /etc/redhat-release ; then
  11. if test -f /usr/kerberos/include ; then
  12. CPPFLAGS="$CPPFLAGS -I/usr/kerberos/include"
  13. fi
  14. fi
  15. # Not a no-op; we want to make sure that CPPFLAGS is set before we use
  16. # the += operator on it in src/or/Makefile.am
  17. CPPFLAGS="$CPPFLAGS -I\${top_srcdir}/src/common"
  18. AC_ARG_ENABLE(debug,
  19. AS_HELP_STRING(--enable-debug, compile with debugging info),
  20. [if test x$enableval = xyes; then
  21. CFLAGS="$CFLAGS -g"
  22. fi])
  23. #XXXX ideally, we should make this into a no-op, and detect whether we're
  24. #compiling for the iphone by using $target.
  25. AC_ARG_ENABLE(iphone,
  26. AS_HELP_STRING(--enable-iphone, compile with iPhone support),
  27. [if test x$enableval = xyes ; then
  28. tor_cv_iphone=true
  29. CFLAGS="$CFLAGS -D__DARWIN_UNIX03 -DIPHONE"
  30. fi])
  31. #XXXX020 We should make these enabled or not, before 0.2.0.x-final
  32. AC_ARG_ENABLE(buf-freelists,
  33. AS_HELP_STRING(--disable-buf-freelists, disable freelists for buffer RAM))
  34. AC_ARG_ENABLE(openbsd-malloc,
  35. AS_HELP_STRING(--enable-openbsd-malloc, Use malloc code from openbsd. Linux only))
  36. AC_ARG_ENABLE(instrument-downloads,
  37. AS_HELP_STRING(--enable-instrument-downloads, Instrument downloads of directory resources etc.))
  38. AC_ARG_ENABLE(static-openssl,
  39. AS_HELP_STRING(--enable-static-openssl, Link against a static openssl library. Requires --with-openssl-dir))
  40. AC_ARG_ENABLE(static-libevent,
  41. AS_HELP_STRING(--enable-static-libevent, Link against a static libevent library. Requires --with-libevent-dir))
  42. if test x$enable_buf_freelists != xno; then
  43. AC_DEFINE(ENABLE_BUF_FREELISTS, 1,
  44. [Defined if we try to use freelists for buffer RAM chunks])
  45. fi
  46. AM_CONDITIONAL(USE_OPENBSD_MALLOC, test x$enable_openbsd_malloc = xyes)
  47. if test x$enable_instrument_downloads = xyes; then
  48. AC_DEFINE(INSTRUMENT_DOWNLOADS, 1,
  49. [Defined if we want to keep track of how much of each kind of resource we download.])
  50. fi
  51. AC_ARG_ENABLE(transparent,
  52. AS_HELP_STRING(--disable-transparent, disable transparent proxy support),
  53. [case "${enableval}" in
  54. yes) transparent=true ;;
  55. no) transparent=false ;;
  56. *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
  57. esac], [transparent=true])
  58. AC_ARG_ENABLE(threads,
  59. AS_HELP_STRING(--disable-threads, disable multi-threading support))
  60. if test x$enable_threads = x; then
  61. case $host in
  62. *-*-solaris* )
  63. # Don't try multithreading on solaris -- cpuworkers seem to lock.
  64. AC_MSG_NOTICE([You are running Solaris; Sometimes threading makes
  65. cpu workers lock up here, so I will disable threads.])
  66. enable_threads="no";;
  67. *)
  68. enable_threads="yes";;
  69. esac
  70. fi
  71. if test "$enable_threads" = "yes"; then
  72. AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
  73. fi
  74. case $host in
  75. *-*-solaris* )
  76. AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
  77. ;;
  78. esac
  79. AC_ARG_ENABLE(geoip-stats,
  80. AS_HELP_STRING(--enable-geoip-stats, enable code for directories to collect per-country statistics))
  81. if test "$enable_geoip_stats" = "yes"; then
  82. AC_DEFINE(ENABLE_GEOIP_STATS, 1, [Defined if we try to collect per-country statistics])
  83. fi
  84. AC_ARG_ENABLE(gcc-warnings,
  85. AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
  86. AC_ARG_ENABLE(gcc-warnings-advisory,
  87. AS_HELP_STRING(--enable-gcc-warnings-advisory, [enable verbose warnings, excluding -Werror]))
  88. AC_ARG_ENABLE(local-appdata,
  89. AS_HELP_STRING(--enable-local-appdata, default to host local application data paths on Windows))
  90. if test "$enable_local_appdata" = "yes"; then
  91. AC_DEFINE(ENABLE_LOCAL_APPDATA, 1,
  92. [Defined if we default to host local appdata paths on Windows])
  93. fi
  94. AC_PROG_CC
  95. AC_PROG_CPP
  96. AC_PROG_MAKE_SET
  97. AC_PROG_RANLIB
  98. TORUSER=_tor
  99. AC_ARG_WITH(tor-user,
  100. [ --with-tor-user=NAME Specify username for tor daemon ],
  101. [
  102. TORUSER=$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 "$bwin32" = true; then
  146. AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
  147. fi
  148. AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
  149. dnl Enable C99 when compiling with MIPSpro
  150. AC_MSG_CHECKING([for MIPSpro compiler])
  151. AC_COMPILE_IFELSE(AC_LANG_PROGRAM(, [
  152. #if (defined(__sgi) && defined(_COMPILER_VERSION))
  153. #error
  154. return x(y);
  155. #endif
  156. ]),
  157. bmipspro=false; AC_MSG_RESULT(no),
  158. bmipspro=true; AC_MSG_RESULT(yes))
  159. if test "$bmipspro" = true; then
  160. CFLAGS="$CFLAGS -c99"
  161. fi
  162. AC_C_BIGENDIAN
  163. AC_SEARCH_LIBS(socket, [socket])
  164. AC_SEARCH_LIBS(gethostbyname, [nsl])
  165. AC_SEARCH_LIBS(dlopen, [dl])
  166. AC_SEARCH_LIBS(inet_aton, [resolv])
  167. if test "$enable_threads" = "yes"; then
  168. AC_SEARCH_LIBS(pthread_create, [pthread])
  169. AC_SEARCH_LIBS(pthread_detach, [pthread])
  170. fi
  171. dnl -------------------------------------------------------------------
  172. dnl Check for functions before libevent, since libevent-1.2 apparently
  173. dnl exports strlcpy without defining it in a header.
  174. AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit strlcat strlcpy strtoull getaddrinfo localtime_r gmtime_r memmem strtok_r writev readv flock prctl)
  175. using_custom_malloc=no
  176. if test x$enable_openbsd_malloc = xyes ; then
  177. AC_DEFINE(HAVE_MALLOC_GOOD_SIZE, 1, [Defined if we have the malloc_good_size function])
  178. using_custom_malloc=yes
  179. fi
  180. if test x$tcmalloc = xyes ; then
  181. using_custom_malloc=yes
  182. fi
  183. if test $using_custom_malloc = no ; then
  184. AC_CHECK_FUNCS(mallinfo malloc_good_size malloc_usable_size)
  185. fi
  186. if test "$enable_threads" = "yes"; then
  187. AC_CHECK_HEADERS(pthread.h)
  188. AC_CHECK_FUNCS(pthread_create)
  189. fi
  190. dnl ------------------------------------------------------
  191. dnl Where do you live, libevent? And how do we call you?
  192. if test "$bwin32" = true; then
  193. TOR_LIB_WS32=-lws2_32
  194. # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  195. # think it's actually necessary.
  196. TOR_LIB_GDI=-lgdi32
  197. else
  198. TOR_LIB_WS32=
  199. TOR_LIB_GDI=
  200. fi
  201. AC_SUBST(TOR_LIB_WS32)
  202. AC_SUBST(TOR_LIB_GDI)
  203. dnl We need to do this before we try our disgusting hack below.
  204. AC_CHECK_HEADERS([sys/types.h])
  205. dnl This is a disgusting hack so we safely include older libevent headers.
  206. AC_CHECK_TYPE(u_int64_t, unsigned long long)
  207. AC_CHECK_TYPE(u_int32_t, unsigned long)
  208. AC_CHECK_TYPE(u_int16_t, unsigned short)
  209. AC_CHECK_TYPE(u_int8_t, unsigned char)
  210. tor_libevent_pkg_redhat="libevent"
  211. tor_libevent_pkg_debian="libevent-dev"
  212. tor_libevent_devpkg_redhat="libevent-devel"
  213. tor_libevent_devpkg_debian="libevent-dev"
  214. TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $TOR_LIB_WS32], [
  215. #ifdef WIN32
  216. #include <winsock2.h>
  217. #endif
  218. #include <stdlib.h>
  219. #include <sys/time.h>
  220. #include <sys/types.h>
  221. #include <event.h>], [
  222. #ifdef WIN32
  223. #include <winsock2.h>
  224. #endif
  225. void exit(int); void *event_init(void);],
  226. [
  227. #ifdef WIN32
  228. {WSADATA d; WSAStartup(0x101,&d); }
  229. #endif
  230. event_init(); exit(0);
  231. ], [--with-libevent-dir], [/opt/libevent])
  232. dnl Now check for particular libevent functions.
  233. save_LIBS="$LIBS"
  234. save_LDFLAGS="$LDFLAGS"
  235. save_CPPFLAGS="$CPPFLAGS"
  236. LIBS="-levent $TOR_LIB_WS32 $LIBS"
  237. LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
  238. CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
  239. AC_CHECK_FUNCS(event_get_version event_get_method event_set_log_callback)
  240. AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
  241. [#include <event.h>
  242. ])
  243. LIBS="$save_LIBS"
  244. LDFLAGS="$save_LDFLAGS"
  245. CPPFLAGS="$save_CPPFLAGS"
  246. if test "$enable_static_libevent" = "yes"; then
  247. if test "$tor_cv_library_libevent_dir" = "(system)"; then
  248. AC_MSG_ERROR("You must specify an explicit --with-libevent-dir=x option when using --enable-static-libevent")
  249. else
  250. TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent.a"
  251. fi
  252. else
  253. TOR_LIBEVENT_LIBS="-levent"
  254. fi
  255. AC_SUBST(TOR_LIBEVENT_LIBS)
  256. dnl ------------------------------------------------------
  257. dnl Where do you live, openssl? And how do we call you?
  258. tor_openssl_pkg_redhat="openssl"
  259. tor_openssl_pkg_debian="libssl"
  260. tor_openssl_devpkg_redhat="openssl-devel"
  261. tor_openssl_devpkg_debian="libssl-dev"
  262. ALT_openssl_WITHVAL=""
  263. AC_ARG_WITH(ssl-dir,
  264. [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
  265. [
  266. if test "x$withval" != xno && test "x$withval" != "x" ; then
  267. ALT_openssl_WITHVAL="$withval"
  268. fi
  269. ])
  270. TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
  271. [#include <openssl/rand.h>],
  272. [void RAND_add(const void *buf, int num, double entropy);],
  273. [RAND_add((void*)0,0,0); exit(0);], [],
  274. [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
  275. dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
  276. echo "tor_cv_library_openssl_dir is $tor_cv_library_openssl_dir"
  277. if test "$enable_static_openssl" = "yes"; then
  278. if test "$tor_cv_library_openssl_dir" = "(system)"; then
  279. AC_MSG_ERROR("You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl")
  280. else
  281. TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a"
  282. fi
  283. else
  284. TOR_OPENSSL_LIBS="-lssl -lcrypto"
  285. fi
  286. AC_SUBST(TOR_OPENSSL_LIBS)
  287. dnl ------------------------------------------------------
  288. dnl Where do you live, zlib? And how do we call you?
  289. tor_zlib_pkg_redhat="zlib"
  290. tor_zlib_pkg_debian="zlib1g"
  291. tor_zlib_devpkg_redhat="zlib-devel"
  292. tor_zlib_devpkg_debian="zlib1g-dev"
  293. TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
  294. [#include <zlib.h>],
  295. [const char * zlibVersion(void);],
  296. [zlibVersion(); exit(0);], [--with-zlib-dir],
  297. [/opt/zlib])
  298. dnl Make sure to enable support for large off_t if available.
  299. AC_SYS_LARGEFILE
  300. 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.))
  301. 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)
  302. dnl These headers are not essential
  303. 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)
  304. TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
  305. [#ifdef HAVE_MALLOC_H
  306. #include <malloc.h>
  307. #endif
  308. #ifdef HAVE_MALLOC_MALLOC_H
  309. #include <malloc/malloc.h>
  310. #endif])
  311. AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
  312. [#ifdef HAVE_SYS_TYPES_H
  313. #include <sys/types.h>
  314. #endif
  315. #ifdef HAVE_SYS_SOCKET_H
  316. #include <sys/socket.h>
  317. #endif])
  318. AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
  319. [#ifdef HAVE_SYS_TYPES_H
  320. #include <sys/types.h>
  321. #endif
  322. #ifdef HAVE_SYS_SOCKET_H
  323. #include <sys/socket.h>
  324. #endif
  325. #ifdef HAVE_NET_IF_H
  326. #include <net/if.h>
  327. #endif])
  328. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  329. linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
  330. [#ifdef HAVE_SYS_TYPES_H
  331. #include <sys/types.h>
  332. #endif
  333. #ifdef HAVE_SYS_SOCKET_H
  334. #include <sys/socket.h>
  335. #endif
  336. #ifdef HAVE_LIMITS_H
  337. #include <limits.h>
  338. #endif
  339. #ifdef HAVE_LINUX_TYPES_H
  340. #include <linux/types.h>
  341. #endif
  342. #ifdef HAVE_NETINET_IN6_H
  343. #include <netinet/in6.h>
  344. #endif
  345. #ifdef HAVE_NETINET_IN_H
  346. #include <netinet/in.h>
  347. #endif])
  348. if test x$transparent = xtrue ; then
  349. transparent_ok=0
  350. if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
  351. transparent_ok=1
  352. fi
  353. if test x$linux_netfilter_ipv4 = x1 ; then
  354. transparent_ok=1
  355. fi
  356. if test x$transparent_ok = x1 ; then
  357. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  358. case $host in
  359. *-*-openbsd*)
  360. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  361. esac
  362. else
  363. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  364. fi
  365. fi
  366. AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
  367. [#ifdef HAVE_SYS_TYPES_H
  368. #include <sys/types.h>
  369. #endif
  370. #ifdef HAVE_SYS_TIME_H
  371. #include <sys/time.h>
  372. #endif])
  373. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  374. dnl Watch out.
  375. AC_CHECK_SIZEOF(int8_t)
  376. AC_CHECK_SIZEOF(int16_t)
  377. AC_CHECK_SIZEOF(int32_t)
  378. AC_CHECK_SIZEOF(int64_t)
  379. AC_CHECK_SIZEOF(uint8_t)
  380. AC_CHECK_SIZEOF(uint16_t)
  381. AC_CHECK_SIZEOF(uint32_t)
  382. AC_CHECK_SIZEOF(uint64_t)
  383. AC_CHECK_SIZEOF(intptr_t)
  384. AC_CHECK_SIZEOF(uintptr_t)
  385. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  386. AC_CHECK_SIZEOF(char)
  387. AC_CHECK_SIZEOF(short)
  388. AC_CHECK_SIZEOF(int)
  389. AC_CHECK_SIZEOF(long)
  390. AC_CHECK_SIZEOF(long long)
  391. AC_CHECK_SIZEOF(__int64)
  392. AC_CHECK_SIZEOF(void *)
  393. AC_CHECK_SIZEOF(time_t)
  394. AC_CHECK_SIZEOF(size_t)
  395. AC_CHECK_TYPES([uint, u_char, ssize_t])
  396. dnl used to include sockaddr_storage, but everybody has that.
  397. AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
  398. [#ifdef HAVE_SYS_TYPES_H
  399. #include <sys/types.h>
  400. #endif
  401. #ifdef HAVE_NETINET_IN_H
  402. #include <netinet/in.h>
  403. #endif
  404. #ifdef HAVE_NETINET_IN6_H
  405. #include <netinet/in6.h>
  406. #endif
  407. #ifdef HAVE_SYS_SOCKET_H
  408. #include <sys/socket.h>
  409. #endif
  410. #ifdef MS_WINDOWS
  411. #define WIN32_WINNT 0x400
  412. #define _WIN32_WINNT 0x400
  413. #define WIN32_LEAN_AND_MEAN
  414. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  415. #include <winsock.h>
  416. #else
  417. #include <winsock2.h>
  418. #include <ws2tcpip.h>
  419. #endif
  420. #endif
  421. ])
  422. AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
  423. [#ifdef HAVE_SYS_TYPES_H
  424. #include <sys/types.h>
  425. #endif
  426. #ifdef HAVE_NETINET_IN_H
  427. #include <netinet/in.h>
  428. #endif
  429. #ifdef HAVE_NETINET_IN6_H
  430. #include <netinet/in6.h>
  431. #endif
  432. #ifdef HAVE_SYS_SOCKET_H
  433. #include <sys/socket.h>
  434. #endif
  435. #ifdef MS_WINDOWS
  436. #define WIN32_WINNT 0x400
  437. #define _WIN32_WINNT 0x400
  438. #define WIN32_LEAN_AND_MEAN
  439. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  440. #include <winsock.h>
  441. #else
  442. #include <winsock2.h>
  443. #include <ws2tcpip.h>
  444. #endif
  445. #endif
  446. ])
  447. AC_CHECK_TYPES([rlim_t], , ,
  448. [#ifdef HAVE_SYS_TYPES_H
  449. #include <sys/types.h>
  450. #endif
  451. #ifdef HAVE_SYS_TIME_H
  452. #include <sys/time.h>
  453. #endif
  454. #ifdef HAVE_SYS_RESOURCE_H
  455. #include <sys/resource.h>
  456. #endif
  457. ])
  458. AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
  459. AC_RUN_IFELSE(AC_LANG_SOURCE([
  460. #ifdef HAVE_SYS_TYPES_H
  461. #include <sys/types.h>
  462. #endif
  463. #ifdef HAVE_SYS_TIME_H
  464. #include <sys/time.h>
  465. #endif
  466. #ifdef HAVE_TIME_H
  467. #include <time.h>
  468. #endif
  469. int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }]),
  470. tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes, tor_cv_time_t_signed=cross)
  471. ])
  472. if test "$tor_cv_time_t_signed" = cross; then
  473. AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  474. fi
  475. if test "$tor_cv_time_t_signed" != no; then
  476. AC_DEFINE([TIME_T_IS_SIGNED], 1,
  477. [Define to 1 iff time_t is signed])
  478. fi
  479. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  480. #ifdef HAVE_SYS_SOCKET_H
  481. #include <sys/socket.h>
  482. #endif
  483. ])
  484. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  485. AC_CHECK_SIZEOF(cell_t)
  486. # Now make sure that NULL can be represented as zero bytes.
  487. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  488. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  489. [[#include <stdlib.h>
  490. #include <string.h>
  491. #include <stdio.h>
  492. #ifdef HAVE_STDDEF_H
  493. #include <stddef.h>
  494. #endif
  495. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  496. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  497. [tor_cv_null_is_zero=yes],
  498. [tor_cv_null_is_zero=no],
  499. [tor_cv_null_is_zero=cross])])
  500. if test "$tor_cv_null_is_zero" = cross ; then
  501. # Cross-compiling; let's hope that the target isn't raving mad.
  502. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  503. fi
  504. if test "$tor_cv_null_is_zero" != no; then
  505. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  506. [Define to 1 iff memset(0) sets pointers to NULL])
  507. fi
  508. # And what happens when we malloc zero?
  509. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  510. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  511. [[#include <stdlib.h>
  512. #include <string.h>
  513. #include <stdio.h>
  514. #ifdef HAVE_STDDEF_H
  515. #include <stddef.h>
  516. #endif
  517. int main () { return malloc(0)?0:1; }]])],
  518. [tor_cv_malloc_zero_works=yes],
  519. [tor_cv_malloc_zero_works=no],
  520. [tor_cv_malloc_zero_works=cross])])
  521. if test "$tor_cv_malloc_zero_works" = cross; then
  522. # Cross-compiling; let's hope that the target isn't raving mad.
  523. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  524. fi
  525. if test "$tor_cv_malloc_zero_works" = yes; then
  526. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  527. [Define to 1 iff malloc(0) returns a pointer])
  528. fi
  529. # whether we seem to be in a 2s-complement world.
  530. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  531. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  532. [[int main () { int problem = ((-99) != (~99)+1);
  533. return problem ? 1 : 0; }]])],
  534. [tor_cv_twos_complement=yes],
  535. [tor_cv_twos_complement=no],
  536. [tor_cv_twos_complement=cross])])
  537. if test "$tor_cv_twos_complement" = cross ; then
  538. # Cross-compiling; let's hope that the target isn't raving mad.
  539. AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
  540. fi
  541. if test "$tor_cv_twos_complement" != no ; then
  542. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  543. [Define to 1 iff we represent negative integers with two's complement])
  544. fi
  545. # What does shifting a negative value do?
  546. AC_CACHE_CHECK([whether right-shift on negative values does sign-extension], tor_cv_sign_extend,
  547. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  548. [[int main () { int okay = (-60 >> 8) == -1; return okay ? 0 : 1; }]])],
  549. [tor_cv_sign_extend=yes],
  550. [tor_cv_sign_extend=no],
  551. [tor_cv_sign_extend=cross])])
  552. if test "$tor_cv_sign_extend" = cross ; then
  553. # Cross-compiling; let's hope that the target isn't raving mad.
  554. AC_MSG_NOTICE([Cross-compiling: we'll assume that right-shifting negative integers causes sign-extension])
  555. fi
  556. if test "$tor_cv_sign_extend" != no ; then
  557. AC_DEFINE([RSHIFT_DOES_SIGN_EXTEND], 1,
  558. [Define to 1 iff right-shifting a negative value performs sign-extension])
  559. fi
  560. # Whether we should use the dmalloc memory allocation debugging library.
  561. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  562. AC_ARG_WITH(dmalloc,
  563. [ --with-dmalloc Use debug memory allocation library. ],
  564. [if [[ "$withval" = "yes" ]]; then
  565. dmalloc=1
  566. AC_MSG_RESULT(yes)
  567. else
  568. dmalloc=1
  569. AC_MSG_RESULT(no)
  570. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  571. )
  572. if [[ $dmalloc -eq 1 ]]; then
  573. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  574. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  575. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  576. AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
  577. AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
  578. fi
  579. AC_ARG_WITH(tcmalloc,
  580. [ --with-tcmalloc Use tcmalloc memory allocation library. ],
  581. [ tcmalloc=yes ], [ tcmalloc=no ])
  582. if test x$tcmalloc = xyes ; then
  583. LDFLAGS="-ltcmalloc $LDFLAGS"
  584. fi
  585. # Allow user to specify an alternate syslog facility
  586. AC_ARG_WITH(syslog-facility,
  587. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  588. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  589. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  590. AC_SUBST(LOGFACILITY)
  591. # Check if we have getresuid and getresgid
  592. AC_CHECK_FUNCS(getresuid getresgid)
  593. # Check for gethostbyname_r in all its glorious incompatible versions.
  594. # (This logic is based on that in Python's configure.in)
  595. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  596. [Define this if you have any gethostbyname_r()])
  597. AC_CHECK_FUNC(gethostbyname_r, [
  598. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  599. OLD_CFLAGS=$CFLAGS
  600. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  601. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([
  602. #include <netdb.h>
  603. ], [[
  604. char *cp1, *cp2;
  605. struct hostent *h1, *h2;
  606. int i1, i2;
  607. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  608. ]]),[
  609. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  610. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  611. [Define this if gethostbyname_r takes 6 arguments])
  612. AC_MSG_RESULT(6)
  613. ], [
  614. AC_TRY_COMPILE([
  615. #include <netdb.h>
  616. ], [
  617. char *cp1, *cp2;
  618. struct hostent *h1;
  619. int i1, i2;
  620. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  621. ], [
  622. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  623. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  624. [Define this if gethostbyname_r takes 5 arguments])
  625. AC_MSG_RESULT(5)
  626. ], [
  627. AC_TRY_COMPILE([
  628. #include <netdb.h>
  629. ], [
  630. char *cp1;
  631. struct hostent *h1;
  632. struct hostent_data hd;
  633. (void) gethostbyname_r(cp1,h1,&hd);
  634. ], [
  635. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  636. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  637. [Define this if gethostbyname_r takes 3 arguments])
  638. AC_MSG_RESULT(3)
  639. ], [
  640. AC_MSG_RESULT(0)
  641. ])
  642. ])
  643. ])
  644. CFLAGS=$OLD_CFLAGS
  645. ])
  646. AC_CACHE_CHECK([whether the C compiler supports __func__],
  647. tor_cv_have_func_macro,
  648. AC_COMPILE_IFELSE([
  649. #include <stdio.h>
  650. int main(int c, char **v) { puts(__func__); }],
  651. tor_cv_have_func_macro=yes,
  652. tor_cv_have_func_macro=no))
  653. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  654. tor_cv_have_FUNC_macro,
  655. AC_COMPILE_IFELSE([
  656. #include <stdio.h>
  657. int main(int c, char **v) { puts(__FUNC__); }],
  658. tor_cv_have_FUNC_macro=yes,
  659. tor_cv_have_FUNC_macro=no))
  660. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  661. tor_cv_have_FUNCTION_macro,
  662. AC_COMPILE_IFELSE([
  663. #include <stdio.h>
  664. int main(int c, char **v) { puts(__FUNCTION__); }],
  665. tor_cv_have_FUNCTION_macro=yes,
  666. tor_cv_have_FUNCTION_macro=no))
  667. if test "$tor_cv_have_func_macro" = 'yes'; then
  668. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  669. fi
  670. if test "$tor_cv_have_FUNC_macro" = 'yes'; then
  671. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  672. fi
  673. if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
  674. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  675. [Defined if the compiler supports __FUNCTION__])
  676. fi
  677. # $prefix stores the value of the --prefix command line option, or
  678. # NONE if the option wasn't set. In the case that it wasn't set, make
  679. # it be the default, so that we can use it to expand directories now.
  680. if test "x$prefix" = "xNONE"; then
  681. prefix=$ac_default_prefix
  682. fi
  683. # and similarly for $exec_prefix
  684. if test "x$exec_prefix" = "xNONE"; then
  685. exec_prefix=$prefix
  686. fi
  687. if test "x$CONFDIR" = "x"; then
  688. CONFDIR=`eval echo $sysconfdir/tor`
  689. fi
  690. AC_SUBST(CONFDIR)
  691. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  692. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  693. BINDIR=`eval echo $bindir`
  694. AC_SUBST(BINDIR)
  695. LOCALSTATEDIR=`eval echo $localstatedir`
  696. AC_SUBST(LOCALSTATEDIR)
  697. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  698. # than autoconf's macros like.
  699. if test "$GCC" = yes; then
  700. CFLAGS="$CFLAGS -Wall -g -O2"
  701. # Disable GCC's strict aliasing checks. They are an hours-to-debug
  702. # accident waiting to happen.
  703. CFLAGS="$CFLAGS -fno-strict-aliasing"
  704. else
  705. CFLAGS="$CFLAGS -g -O"
  706. enable_gcc_warnings=no
  707. enable_gcc_warnings_advisory=no
  708. fi
  709. # Add some more warnings which we use in development but not in the
  710. # released versions. (Some relevant gcc versions can't handle these.)
  711. if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
  712. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  713. #if !defined(__GNUC__) || (__GNUC__ < 4)
  714. #error
  715. #endif]), have_gcc4=yes, have_gcc4=no)
  716. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  717. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  718. #error
  719. #endif]), have_gcc42=yes, have_gcc42=no)
  720. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  721. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
  722. #error
  723. #endif]), have_gcc43=yes, have_gcc43=no)
  724. save_CFLAGS="$CFLAGS"
  725. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  726. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], []), have_shorten64_flag=yes,
  727. have_shorten64_flag=no)
  728. CFLAGS="$save_CFLAGS"
  729. case $host in
  730. *-*-openbsd*)
  731. # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default.
  732. # That's fine, except that the headers don't pass -Wredundant-decls.
  733. # Therefore, let's disable -Wsystem-headers when we're building
  734. # with maximal warnings on OpenBSD.
  735. CFLAGS="$CFLAGS -Wno-system-headers" ;;
  736. esac
  737. CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Wwrite-strings -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wbad-function-cast -Wswitch-enum"
  738. if test x$enable_gcc_warnings = xyes; then
  739. CFLAGS="$CFLAGS -Werror"
  740. fi
  741. # Disabled, so we can use mallinfo(): -Waggregate-return
  742. if test x$have_gcc4 = xyes ; then
  743. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  744. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  745. fi
  746. if test x$have_gcc42 = xyes ; then
  747. # These warnings break gcc 4.0.2 and work on gcc 4.2
  748. # XXXX020 Use -fstack-protector.
  749. # XXXX020 See if any of these work with earlier versions.
  750. CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wnormalized=id -Woverride-init -Wstrict-overflow=1"
  751. # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
  752. fi
  753. if test x$have_gcc43 = xyes ; then
  754. # These warnings break gcc 4.2 and work on gcc 4.3
  755. # XXXX020 See if any of these work with earlier versions.
  756. CFLAGS="$CFLAGS -Wextra -Warray-bounds"
  757. fi
  758. if test x$have_shorten64_flag = xyes ; then
  759. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  760. fi
  761. ##This will break the world on some 64-bit architectures
  762. # CFLAGS="$CFLAGS -Winline"
  763. fi
  764. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
  765. AC_CONFIG_FILES([Makefile tor.spec Doxyfile 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])
  766. AC_OUTPUT
  767. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  768. ./contrib/updateVersions.pl
  769. fi