configure.in 26 KB

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  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
  5. AC_INIT
  6. AM_INIT_AUTOMAKE(tor, 0.2.2.9-alpha-dev)
  7. AM_CONFIG_HEADER(orconfig.h)
  8. AC_CANONICAL_HOST
  9. if test -f /etc/redhat-release ; then
  10. if test -f /usr/kerberos/include ; then
  11. CPPFLAGS="$CPPFLAGS -I/usr/kerberos/include"
  12. fi
  13. fi
  14. # Not a no-op; we want to make sure that CPPFLAGS is set before we use
  15. # the += operator on it in src/or/Makefile.am
  16. CPPFLAGS="$CPPFLAGS -I\${top_srcdir}/src/common"
  17. #XXXX020 We should make these enabled or not, before 0.2.0.x-final
  18. AC_ARG_ENABLE(buf-freelists,
  19. AS_HELP_STRING(--disable-buf-freelists, disable freelists for buffer RAM))
  20. AC_ARG_ENABLE(openbsd-malloc,
  21. AS_HELP_STRING(--enable-openbsd-malloc, Use malloc code from openbsd. Linux only))
  22. AC_ARG_ENABLE(instrument-downloads,
  23. AS_HELP_STRING(--enable-instrument-downloads, Instrument downloads of directory resources etc.))
  24. AC_ARG_ENABLE(static-openssl,
  25. AS_HELP_STRING(--enable-static-openssl, Link against a static openssl library. Requires --with-openssl-dir))
  26. AC_ARG_ENABLE(static-libevent,
  27. AS_HELP_STRING(--enable-static-libevent, Link against a static libevent library. Requires --with-libevent-dir))
  28. if test x$enable_buf_freelists != xno; then
  29. AC_DEFINE(ENABLE_BUF_FREELISTS, 1,
  30. [Defined if we try to use freelists for buffer RAM chunks])
  31. fi
  32. AM_CONDITIONAL(USE_OPENBSD_MALLOC, test x$enable_openbsd_malloc = xyes)
  33. if test x$enable_instrument_downloads = xyes; then
  34. AC_DEFINE(INSTRUMENT_DOWNLOADS, 1,
  35. [Defined if we want to keep track of how much of each kind of resource we download.])
  36. fi
  37. AC_ARG_ENABLE(transparent,
  38. AS_HELP_STRING(--disable-transparent, disable transparent proxy support),
  39. [case "${enableval}" in
  40. yes) transparent=true ;;
  41. no) transparent=false ;;
  42. *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
  43. esac], [transparent=true])
  44. AC_ARG_ENABLE(threads,
  45. AS_HELP_STRING(--disable-threads, disable multi-threading support))
  46. if test x$enable_threads = x; then
  47. case $host in
  48. *-*-solaris* )
  49. # Don't try multithreading on solaris -- cpuworkers seem to lock.
  50. AC_MSG_NOTICE([You are running Solaris; Sometimes threading makes
  51. cpu workers lock up here, so I will disable threads.])
  52. enable_threads="no";;
  53. *)
  54. enable_threads="yes";;
  55. esac
  56. fi
  57. if test "$enable_threads" = "yes"; then
  58. AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
  59. fi
  60. case $host in
  61. *-*-solaris* )
  62. AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
  63. ;;
  64. esac
  65. AC_ARG_ENABLE(gcc-warnings,
  66. AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
  67. AC_ARG_ENABLE(gcc-warnings-advisory,
  68. AS_HELP_STRING(--enable-gcc-warnings-advisory, [enable verbose warnings, excluding -Werror]))
  69. AC_ARG_ENABLE(local-appdata,
  70. AS_HELP_STRING(--enable-local-appdata, default to host local application data paths on Windows))
  71. if test "$enable_local_appdata" = "yes"; then
  72. AC_DEFINE(ENABLE_LOCAL_APPDATA, 1,
  73. [Defined if we default to host local appdata paths on Windows])
  74. fi
  75. AC_PROG_CC
  76. AC_PROG_CPP
  77. AC_PROG_MAKE_SET
  78. AC_PROG_RANLIB
  79. dnl autoconf 2.59 appears not to support AC_PROG_SED
  80. AC_CHECK_PROG([SED],[sed],[sed],[/bin/false])
  81. dnl check for asciidoc and a2x
  82. AC_PATH_PROG([ASCIIDOC], [asciidoc], none)
  83. AC_PATH_PROG([A2X], [a2x], none)
  84. AC_PATH_PROG([SHA1SUM], [sha1sum], none)
  85. AC_PATH_PROG([OPENSSL], [openssl], none)
  86. TORUSER=_tor
  87. AC_ARG_WITH(tor-user,
  88. [ --with-tor-user=NAME Specify username for tor daemon ],
  89. [
  90. TORUSER=$withval
  91. ]
  92. )
  93. AC_SUBST(TORUSER)
  94. TORGROUP=_tor
  95. AC_ARG_WITH(tor-group,
  96. [ --with-tor-group=NAME Specify group name for tor daemon ],
  97. [
  98. TORGROUP=$withval
  99. ]
  100. )
  101. AC_SUBST(TORGROUP)
  102. dnl If WIN32 is defined and non-zero, we are building for win32
  103. AC_MSG_CHECKING([for win32])
  104. AC_RUN_IFELSE([
  105. int main(int c, char **v) {
  106. #ifdef WIN32
  107. #if WIN32
  108. return 0;
  109. #else
  110. return 1;
  111. #endif
  112. #else
  113. return 2;
  114. #endif
  115. }],
  116. bwin32=true; AC_MSG_RESULT([yes]),
  117. bwin32=false; AC_MSG_RESULT([no]),
  118. bwin32=cross; AC_MSG_RESULT([cross])
  119. )
  120. if test "$bwin32" = cross; then
  121. AC_MSG_CHECKING([for win32 (cross)])
  122. AC_COMPILE_IFELSE([
  123. #ifdef WIN32
  124. int main(int c, char **v) {return 0;}
  125. #else
  126. #error
  127. int main(int c, char **v) {return x(y);}
  128. #endif
  129. ],
  130. bwin32=true; AC_MSG_RESULT([yes]),
  131. bwin32=false; AC_MSG_RESULT([no]))
  132. fi
  133. if test "$bwin32" = true; then
  134. AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
  135. fi
  136. AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
  137. dnl Enable C99 when compiling with MIPSpro
  138. AC_MSG_CHECKING([for MIPSpro compiler])
  139. AC_COMPILE_IFELSE(AC_LANG_PROGRAM(, [
  140. #if (defined(__sgi) && defined(_COMPILER_VERSION))
  141. #error
  142. return x(y);
  143. #endif
  144. ]),
  145. bmipspro=false; AC_MSG_RESULT(no),
  146. bmipspro=true; AC_MSG_RESULT(yes))
  147. if test "$bmipspro" = true; then
  148. CFLAGS="$CFLAGS -c99"
  149. fi
  150. AC_C_BIGENDIAN
  151. AC_SEARCH_LIBS(socket, [socket])
  152. AC_SEARCH_LIBS(gethostbyname, [nsl])
  153. AC_SEARCH_LIBS(dlopen, [dl])
  154. AC_SEARCH_LIBS(inet_aton, [resolv])
  155. if test "$enable_threads" = "yes"; then
  156. AC_SEARCH_LIBS(pthread_create, [pthread])
  157. AC_SEARCH_LIBS(pthread_detach, [pthread])
  158. fi
  159. dnl -------------------------------------------------------------------
  160. dnl Check for functions before libevent, since libevent-1.2 apparently
  161. dnl exports strlcpy without defining it in a header.
  162. 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)
  163. using_custom_malloc=no
  164. if test x$enable_openbsd_malloc = xyes ; then
  165. AC_DEFINE(HAVE_MALLOC_GOOD_SIZE, 1, [Defined if we have the malloc_good_size function])
  166. using_custom_malloc=yes
  167. fi
  168. if test x$tcmalloc = xyes ; then
  169. using_custom_malloc=yes
  170. fi
  171. if test $using_custom_malloc = no ; then
  172. AC_CHECK_FUNCS(mallinfo malloc_good_size malloc_usable_size)
  173. fi
  174. if test "$enable_threads" = "yes"; then
  175. AC_CHECK_HEADERS(pthread.h)
  176. AC_CHECK_FUNCS(pthread_create)
  177. fi
  178. dnl ------------------------------------------------------
  179. dnl Where do you live, libevent? And how do we call you?
  180. if test "$bwin32" = true; then
  181. TOR_LIB_WS32=-lws2_32
  182. # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  183. # think it's actually necessary.
  184. TOR_LIB_GDI=-lgdi32
  185. else
  186. TOR_LIB_WS32=
  187. TOR_LIB_GDI=
  188. fi
  189. AC_SUBST(TOR_LIB_WS32)
  190. AC_SUBST(TOR_LIB_GDI)
  191. dnl We need to do this before we try our disgusting hack below.
  192. AC_CHECK_HEADERS([sys/types.h])
  193. dnl This is a disgusting hack so we safely include older libevent headers.
  194. AC_CHECK_TYPE(u_int64_t, unsigned long long)
  195. AC_CHECK_TYPE(u_int32_t, unsigned long)
  196. AC_CHECK_TYPE(u_int16_t, unsigned short)
  197. AC_CHECK_TYPE(u_int8_t, unsigned char)
  198. tor_libevent_pkg_redhat="libevent"
  199. tor_libevent_pkg_debian="libevent-dev"
  200. tor_libevent_devpkg_redhat="libevent-devel"
  201. tor_libevent_devpkg_debian="libevent-dev"
  202. TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $TOR_LIB_WS32], [
  203. #ifdef WIN32
  204. #include <winsock2.h>
  205. #endif
  206. #include <stdlib.h>
  207. #include <sys/time.h>
  208. #include <sys/types.h>
  209. #include <event.h>], [
  210. #ifdef WIN32
  211. #include <winsock2.h>
  212. #endif
  213. void exit(int); void *event_init(void);],
  214. [
  215. #ifdef WIN32
  216. {WSADATA d; WSAStartup(0x101,&d); }
  217. #endif
  218. event_init(); exit(0);
  219. ], [--with-libevent-dir], [/opt/libevent])
  220. dnl Now check for particular libevent functions.
  221. save_LIBS="$LIBS"
  222. save_LDFLAGS="$LDFLAGS"
  223. save_CPPFLAGS="$CPPFLAGS"
  224. LIBS="-levent $TOR_LIB_WS32 $LIBS"
  225. LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
  226. CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
  227. AC_CHECK_FUNCS(event_get_version event_get_version_number event_get_method event_set_log_callback evdns_set_outgoing_bind_address event_base_loopexit)
  228. AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
  229. [#include <event.h>
  230. ])
  231. AC_CHECK_HEADERS(event2/event.h event2/dns.h)
  232. LIBS="$save_LIBS"
  233. LDFLAGS="$save_LDFLAGS"
  234. CPPFLAGS="$save_CPPFLAGS"
  235. AM_CONDITIONAL(USE_EXTERNAL_EVDNS, test x$ac_cv_header_event2_dns_h = xyes)
  236. if test "$enable_static_libevent" = "yes"; then
  237. if test "$tor_cv_library_libevent_dir" = "(system)"; then
  238. AC_MSG_ERROR("You must specify an explicit --with-libevent-dir=x option when using --enable-static-libevent")
  239. else
  240. TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent.a"
  241. fi
  242. else
  243. TOR_LIBEVENT_LIBS="-levent"
  244. fi
  245. AC_SUBST(TOR_LIBEVENT_LIBS)
  246. dnl ------------------------------------------------------
  247. dnl Where do you live, openssl? And how do we call you?
  248. tor_openssl_pkg_redhat="openssl"
  249. tor_openssl_pkg_debian="libssl"
  250. tor_openssl_devpkg_redhat="openssl-devel"
  251. tor_openssl_devpkg_debian="libssl-dev"
  252. ALT_openssl_WITHVAL=""
  253. AC_ARG_WITH(ssl-dir,
  254. [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
  255. [
  256. if test "x$withval" != xno && test "x$withval" != "x" ; then
  257. ALT_openssl_WITHVAL="$withval"
  258. fi
  259. ])
  260. TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
  261. [#include <openssl/rand.h>],
  262. [void RAND_add(const void *buf, int num, double entropy);],
  263. [RAND_add((void*)0,0,0); exit(0);], [],
  264. [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
  265. dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
  266. echo "tor_cv_library_openssl_dir is $tor_cv_library_openssl_dir"
  267. if test "$enable_static_openssl" = "yes"; then
  268. if test "$tor_cv_library_openssl_dir" = "(system)"; then
  269. AC_MSG_ERROR("You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl")
  270. else
  271. TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a"
  272. fi
  273. else
  274. TOR_OPENSSL_LIBS="-lssl -lcrypto"
  275. fi
  276. AC_SUBST(TOR_OPENSSL_LIBS)
  277. dnl ------------------------------------------------------
  278. dnl Where do you live, zlib? And how do we call you?
  279. tor_openssl_pkg_redhat="zlib"
  280. tor_openssl_pkg_debian="zlib1g"
  281. tor_openssl_devpkg_redhat="zlib-devel"
  282. tor_openssl_devpkg_debian="zlib1g-dev"
  283. TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
  284. [#include <zlib.h>],
  285. [const char * zlibVersion(void);],
  286. [zlibVersion(); exit(0);], [--with-zlib-dir],
  287. [/opt/zlib])
  288. dnl Make sure to enable support for large off_t if available.
  289. AC_SYS_LARGEFILE
  290. 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.))
  291. 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)
  292. dnl These headers are not essential
  293. 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)
  294. TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
  295. [#ifdef HAVE_MALLOC_H
  296. #include <malloc.h>
  297. #endif
  298. #ifdef HAVE_MALLOC_MALLOC_H
  299. #include <malloc/malloc.h>
  300. #endif])
  301. AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
  302. [#ifdef HAVE_SYS_TYPES_H
  303. #include <sys/types.h>
  304. #endif
  305. #ifdef HAVE_SYS_SOCKET_H
  306. #include <sys/socket.h>
  307. #endif])
  308. AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
  309. [#ifdef HAVE_SYS_TYPES_H
  310. #include <sys/types.h>
  311. #endif
  312. #ifdef HAVE_SYS_SOCKET_H
  313. #include <sys/socket.h>
  314. #endif
  315. #ifdef HAVE_NET_IF_H
  316. #include <net/if.h>
  317. #endif])
  318. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  319. linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
  320. [#ifdef HAVE_SYS_TYPES_H
  321. #include <sys/types.h>
  322. #endif
  323. #ifdef HAVE_SYS_SOCKET_H
  324. #include <sys/socket.h>
  325. #endif
  326. #ifdef HAVE_LIMITS_H
  327. #include <limits.h>
  328. #endif
  329. #ifdef HAVE_LINUX_TYPES_H
  330. #include <linux/types.h>
  331. #endif
  332. #ifdef HAVE_NETINET_IN6_H
  333. #include <netinet/in6.h>
  334. #endif
  335. #ifdef HAVE_NETINET_IN_H
  336. #include <netinet/in.h>
  337. #endif])
  338. if test x$transparent = xtrue ; then
  339. transparent_ok=0
  340. if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
  341. transparent_ok=1
  342. fi
  343. if test x$linux_netfilter_ipv4 = x1 ; then
  344. transparent_ok=1
  345. fi
  346. if test x$transparent_ok = x1 ; then
  347. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  348. case $host in
  349. *-*-openbsd*)
  350. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  351. esac
  352. else
  353. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  354. fi
  355. fi
  356. AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
  357. [#ifdef HAVE_SYS_TYPES_H
  358. #include <sys/types.h>
  359. #endif
  360. #ifdef HAVE_SYS_TIME_H
  361. #include <sys/time.h>
  362. #endif])
  363. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  364. dnl Watch out.
  365. AC_CHECK_SIZEOF(int8_t)
  366. AC_CHECK_SIZEOF(int16_t)
  367. AC_CHECK_SIZEOF(int32_t)
  368. AC_CHECK_SIZEOF(int64_t)
  369. AC_CHECK_SIZEOF(uint8_t)
  370. AC_CHECK_SIZEOF(uint16_t)
  371. AC_CHECK_SIZEOF(uint32_t)
  372. AC_CHECK_SIZEOF(uint64_t)
  373. AC_CHECK_SIZEOF(intptr_t)
  374. AC_CHECK_SIZEOF(uintptr_t)
  375. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  376. AC_CHECK_SIZEOF(char)
  377. AC_CHECK_SIZEOF(short)
  378. AC_CHECK_SIZEOF(int)
  379. AC_CHECK_SIZEOF(long)
  380. AC_CHECK_SIZEOF(long long)
  381. AC_CHECK_SIZEOF(__int64)
  382. AC_CHECK_SIZEOF(void *)
  383. AC_CHECK_SIZEOF(time_t)
  384. AC_CHECK_SIZEOF(size_t)
  385. AC_CHECK_TYPES([uint, u_char, ssize_t])
  386. dnl used to include sockaddr_storage, but everybody has that.
  387. AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
  388. [#ifdef HAVE_SYS_TYPES_H
  389. #include <sys/types.h>
  390. #endif
  391. #ifdef HAVE_NETINET_IN_H
  392. #include <netinet/in.h>
  393. #endif
  394. #ifdef HAVE_NETINET_IN6_H
  395. #include <netinet/in6.h>
  396. #endif
  397. #ifdef HAVE_SYS_SOCKET_H
  398. #include <sys/socket.h>
  399. #endif
  400. #ifdef MS_WINDOWS
  401. #define WIN32_WINNT 0x400
  402. #define _WIN32_WINNT 0x400
  403. #define WIN32_LEAN_AND_MEAN
  404. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  405. #include <winsock.h>
  406. #else
  407. #include <winsock2.h>
  408. #include <ws2tcpip.h>
  409. #endif
  410. #endif
  411. ])
  412. AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
  413. [#ifdef HAVE_SYS_TYPES_H
  414. #include <sys/types.h>
  415. #endif
  416. #ifdef HAVE_NETINET_IN_H
  417. #include <netinet/in.h>
  418. #endif
  419. #ifdef HAVE_NETINET_IN6_H
  420. #include <netinet/in6.h>
  421. #endif
  422. #ifdef HAVE_SYS_SOCKET_H
  423. #include <sys/socket.h>
  424. #endif
  425. #ifdef MS_WINDOWS
  426. #define WIN32_WINNT 0x400
  427. #define _WIN32_WINNT 0x400
  428. #define WIN32_LEAN_AND_MEAN
  429. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  430. #include <winsock.h>
  431. #else
  432. #include <winsock2.h>
  433. #include <ws2tcpip.h>
  434. #endif
  435. #endif
  436. ])
  437. AC_CHECK_TYPES([rlim_t], , ,
  438. [#ifdef HAVE_SYS_TYPES_H
  439. #include <sys/types.h>
  440. #endif
  441. #ifdef HAVE_SYS_TIME_H
  442. #include <sys/time.h>
  443. #endif
  444. #ifdef HAVE_SYS_RESOURCE_H
  445. #include <sys/resource.h>
  446. #endif
  447. ])
  448. AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
  449. AC_RUN_IFELSE(AC_LANG_SOURCE([
  450. #ifdef HAVE_SYS_TYPES_H
  451. #include <sys/types.h>
  452. #endif
  453. #ifdef HAVE_SYS_TIME_H
  454. #include <sys/time.h>
  455. #endif
  456. #ifdef HAVE_TIME_H
  457. #include <time.h>
  458. #endif
  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, tor_cv_time_t_signed=cross)
  461. ])
  462. if test "$tor_cv_time_t_signed" = cross; then
  463. AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  464. fi
  465. if test "$tor_cv_time_t_signed" != no; then
  466. AC_DEFINE([TIME_T_IS_SIGNED], 1,
  467. [Define to 1 iff time_t is signed])
  468. fi
  469. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  470. #ifdef HAVE_SYS_SOCKET_H
  471. #include <sys/socket.h>
  472. #endif
  473. ])
  474. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  475. AC_CHECK_SIZEOF(cell_t)
  476. # Now make sure that NULL can be represented as zero bytes.
  477. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  478. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  479. [[#include <stdlib.h>
  480. #include <string.h>
  481. #include <stdio.h>
  482. #ifdef HAVE_STDDEF_H
  483. #include <stddef.h>
  484. #endif
  485. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  486. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  487. [tor_cv_null_is_zero=yes],
  488. [tor_cv_null_is_zero=no],
  489. [tor_cv_null_is_zero=cross])])
  490. if test "$tor_cv_null_is_zero" = cross ; then
  491. # Cross-compiling; let's hope that the target isn't raving mad.
  492. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  493. fi
  494. if test "$tor_cv_null_is_zero" != no; then
  495. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  496. [Define to 1 iff memset(0) sets pointers to NULL])
  497. fi
  498. # And what happens when we malloc zero?
  499. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  500. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  501. [[#include <stdlib.h>
  502. #include <string.h>
  503. #include <stdio.h>
  504. #ifdef HAVE_STDDEF_H
  505. #include <stddef.h>
  506. #endif
  507. int main () { return malloc(0)?0:1; }]])],
  508. [tor_cv_malloc_zero_works=yes],
  509. [tor_cv_malloc_zero_works=no],
  510. [tor_cv_malloc_zero_works=cross])])
  511. if test "$tor_cv_malloc_zero_works" = cross; then
  512. # Cross-compiling; let's hope that the target isn't raving mad.
  513. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  514. fi
  515. if test "$tor_cv_malloc_zero_works" = yes; then
  516. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  517. [Define to 1 iff malloc(0) returns a pointer])
  518. fi
  519. # whether we seem to be in a 2s-complement world.
  520. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  521. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  522. [[int main () { int problem = ((-99) != (~99)+1);
  523. return problem ? 1 : 0; }]])],
  524. [tor_cv_twos_complement=yes],
  525. [tor_cv_twos_complement=no],
  526. [tor_cv_twos_complement=cross])])
  527. if test "$tor_cv_twos_complement" = cross ; then
  528. # Cross-compiling; let's hope that the target isn't raving mad.
  529. AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
  530. fi
  531. if test "$tor_cv_twos_complement" != no ; then
  532. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  533. [Define to 1 iff we represent negative integers with two's complement])
  534. fi
  535. # Whether we should use the dmalloc memory allocation debugging library.
  536. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  537. AC_ARG_WITH(dmalloc,
  538. [ --with-dmalloc Use debug memory allocation library. ],
  539. [if [[ "$withval" = "yes" ]]; then
  540. dmalloc=1
  541. AC_MSG_RESULT(yes)
  542. else
  543. dmalloc=1
  544. AC_MSG_RESULT(no)
  545. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  546. )
  547. if [[ $dmalloc -eq 1 ]]; then
  548. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  549. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  550. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  551. AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
  552. AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
  553. fi
  554. AC_ARG_WITH(tcmalloc,
  555. [ --with-tcmalloc Use tcmalloc memory allocation library. ],
  556. [ tcmalloc=yes ], [ tcmalloc=no ])
  557. if test x$tcmalloc = xyes ; then
  558. LDFLAGS="-ltcmalloc $LDFLAGS"
  559. fi
  560. # By default, we're going to assume we don't have mlockall()
  561. # bionic and other platforms have various broken mlockall subsystems.
  562. # Some systems don't have a working mlockall, some aren't linkable,
  563. # and some have it but don't declare it.
  564. AC_CHECK_FUNCS(mlockall)
  565. AC_CHECK_DECLS([mlockall], , , [
  566. #ifdef HAVE_SYS_MMAN_H
  567. #include <sys/mman.h>
  568. #endif])
  569. # Allow user to specify an alternate syslog facility
  570. AC_ARG_WITH(syslog-facility,
  571. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  572. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  573. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  574. AC_SUBST(LOGFACILITY)
  575. # Check if we have getresuid and getresgid
  576. AC_CHECK_FUNCS(getresuid getresgid)
  577. # Check for gethostbyname_r in all its glorious incompatible versions.
  578. # (This logic is based on that in Python's configure.in)
  579. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  580. [Define this if you have any gethostbyname_r()])
  581. AC_CHECK_FUNC(gethostbyname_r, [
  582. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  583. OLD_CFLAGS=$CFLAGS
  584. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  585. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([
  586. #include <netdb.h>
  587. ], [[
  588. char *cp1, *cp2;
  589. struct hostent *h1, *h2;
  590. int i1, i2;
  591. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  592. ]]),[
  593. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  594. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  595. [Define this if gethostbyname_r takes 6 arguments])
  596. AC_MSG_RESULT(6)
  597. ], [
  598. AC_TRY_COMPILE([
  599. #include <netdb.h>
  600. ], [
  601. char *cp1, *cp2;
  602. struct hostent *h1;
  603. int i1, i2;
  604. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  605. ], [
  606. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  607. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  608. [Define this if gethostbyname_r takes 5 arguments])
  609. AC_MSG_RESULT(5)
  610. ], [
  611. AC_TRY_COMPILE([
  612. #include <netdb.h>
  613. ], [
  614. char *cp1;
  615. struct hostent *h1;
  616. struct hostent_data hd;
  617. (void) gethostbyname_r(cp1,h1,&hd);
  618. ], [
  619. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  620. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  621. [Define this if gethostbyname_r takes 3 arguments])
  622. AC_MSG_RESULT(3)
  623. ], [
  624. AC_MSG_RESULT(0)
  625. ])
  626. ])
  627. ])
  628. CFLAGS=$OLD_CFLAGS
  629. ])
  630. AC_CACHE_CHECK([whether the C compiler supports __func__],
  631. tor_cv_have_func_macro,
  632. AC_COMPILE_IFELSE([
  633. #include <stdio.h>
  634. int main(int c, char **v) { puts(__func__); }],
  635. tor_cv_have_func_macro=yes,
  636. tor_cv_have_func_macro=no))
  637. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  638. tor_cv_have_FUNC_macro,
  639. AC_COMPILE_IFELSE([
  640. #include <stdio.h>
  641. int main(int c, char **v) { puts(__FUNC__); }],
  642. tor_cv_have_FUNC_macro=yes,
  643. tor_cv_have_FUNC_macro=no))
  644. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  645. tor_cv_have_FUNCTION_macro,
  646. AC_COMPILE_IFELSE([
  647. #include <stdio.h>
  648. int main(int c, char **v) { puts(__FUNCTION__); }],
  649. tor_cv_have_FUNCTION_macro=yes,
  650. tor_cv_have_FUNCTION_macro=no))
  651. if test "$tor_cv_have_func_macro" = 'yes'; then
  652. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  653. fi
  654. if test "$tor_cv_have_FUNC_macro" = 'yes'; then
  655. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  656. fi
  657. if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
  658. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  659. [Defined if the compiler supports __FUNCTION__])
  660. fi
  661. # $prefix stores the value of the --prefix command line option, or
  662. # NONE if the option wasn't set. In the case that it wasn't set, make
  663. # it be the default, so that we can use it to expand directories now.
  664. if test "x$prefix" = "xNONE"; then
  665. prefix=$ac_default_prefix
  666. fi
  667. # and similarly for $exec_prefix
  668. if test "x$exec_prefix" = "xNONE"; then
  669. exec_prefix=$prefix
  670. fi
  671. if test "x$CONFDIR" = "x"; then
  672. CONFDIR=`eval echo $sysconfdir/tor`
  673. fi
  674. AC_SUBST(CONFDIR)
  675. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  676. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  677. BINDIR=`eval echo $bindir`
  678. AC_SUBST(BINDIR)
  679. LOCALSTATEDIR=`eval echo $localstatedir`
  680. AC_SUBST(LOCALSTATEDIR)
  681. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  682. # than autoconf's macros like.
  683. if test "$GCC" = yes; then
  684. CFLAGS="$CFLAGS -Wall -g -O2"
  685. # Disable GCC's strict aliasing checks. They are an hours-to-debug
  686. # accident waiting to happen.
  687. CFLAGS="$CFLAGS -fno-strict-aliasing"
  688. else
  689. CFLAGS="$CFLAGS -g -O"
  690. enable_gcc_warnings=no
  691. enable_gcc_warnings_advisory=no
  692. fi
  693. # Add some more warnings which we use in development but not in the
  694. # released versions. (Some relevant gcc versions can't handle these.)
  695. if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
  696. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  697. #if !defined(__GNUC__) || (__GNUC__ < 4)
  698. #error
  699. #endif]), have_gcc4=yes, have_gcc4=no)
  700. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  701. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  702. #error
  703. #endif]), have_gcc42=yes, have_gcc42=no)
  704. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  705. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
  706. #error
  707. #endif]), have_gcc43=yes, have_gcc43=no)
  708. save_CFLAGS="$CFLAGS"
  709. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  710. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], []), have_shorten64_flag=yes,
  711. have_shorten64_flag=no)
  712. CFLAGS="$save_CFLAGS"
  713. CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Wwrite-strings -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wbad-function-cast -Wswitch-enum"
  714. if test x$enable_gcc_warnings = xyes; then
  715. CFLAGS="$CFLAGS -Werror"
  716. fi
  717. # Disabled, so we can use mallinfo(): -Waggregate-return
  718. if test x$have_gcc4 = xyes ; then
  719. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  720. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  721. fi
  722. if test x$have_gcc42 = xyes ; then
  723. # These warnings break gcc 4.0.2 and work on gcc 4.2
  724. # XXXX020 Use -fstack-protector.
  725. # XXXX020 See if any of these work with earlier versions.
  726. CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wnormalized=id -Woverride-init -Wstrict-overflow=1"
  727. # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
  728. fi
  729. if test x$have_gcc43 = xyes ; then
  730. # These warnings break gcc 4.2 and work on gcc 4.3
  731. # XXXX020 See if any of these work with earlier versions.
  732. CFLAGS="$CFLAGS -Wextra -Warray-bounds"
  733. fi
  734. if test x$have_shorten64_flag = xyes ; then
  735. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  736. fi
  737. ##This will break the world on some 64-bit architectures
  738. # CFLAGS="$CFLAGS -Winline"
  739. fi
  740. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
  741. 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 src/Makefile doc/Makefile doc/spec/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])
  742. AC_OUTPUT
  743. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  744. ./contrib/updateVersions.pl
  745. fi