configure.in 25 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, 0.2.2.6-alpha)
  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. AC_ARG_ENABLE(debug,
  18. AS_HELP_STRING(--enable-debug, compile with debugging info),
  19. [if test x$enableval = xyes; then
  20. CFLAGS="$CFLAGS -g"
  21. fi])
  22. #XXXX ideally, we should make this into a no-op, and detect whether we're
  23. #compiling for the iphone by using $target.
  24. AC_ARG_ENABLE(iphone,
  25. AS_HELP_STRING(--enable-iphone, compile with iPhone support),
  26. [if test x$enableval = xyes ; then
  27. tor_cv_iphone=true
  28. CFLAGS="$CFLAGS -D__DARWIN_UNIX03 -DIPHONE"
  29. fi])
  30. #XXXX020 We should make these enabled or not, before 0.2.0.x-final
  31. AC_ARG_ENABLE(buf-freelists,
  32. AS_HELP_STRING(--disable-buf-freelists, disable freelists for buffer RAM))
  33. AC_ARG_ENABLE(openbsd-malloc,
  34. AS_HELP_STRING(--enable-openbsd-malloc, Use malloc code from openbsd. Linux only))
  35. AC_ARG_ENABLE(instrument-downloads,
  36. AS_HELP_STRING(--enable-instrument-downloads, Instrument downloads of directory resources etc.))
  37. if test x$enable_buf_freelists != xno; then
  38. AC_DEFINE(ENABLE_BUF_FREELISTS, 1,
  39. [Defined if we try to use freelists for buffer RAM chunks])
  40. fi
  41. AM_CONDITIONAL(USE_OPENBSD_MALLOC, test x$enable_openbsd_malloc = xyes)
  42. if test x$enable_instrument_downloads = xyes; then
  43. AC_DEFINE(INSTRUMENT_DOWNLOADS, 1,
  44. [Defined if we want to keep track of how much of each kind of resource we download.])
  45. fi
  46. AC_ARG_ENABLE(transparent,
  47. AS_HELP_STRING(--disable-transparent, disable transparent proxy support),
  48. [case "${enableval}" in
  49. yes) transparent=true ;;
  50. no) transparent=false ;;
  51. *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
  52. esac], [transparent=true])
  53. AC_ARG_ENABLE(threads,
  54. AS_HELP_STRING(--disable-threads, disable multi-threading support))
  55. if test x$enable_threads = x; then
  56. case $host in
  57. *-*-solaris* )
  58. # Don't try multithreading on solaris -- cpuworkers seem to lock.
  59. AC_MSG_NOTICE([You are running Solaris; Sometimes threading makes
  60. cpu workers lock up here, so I will disable threads.])
  61. enable_threads="no";;
  62. *)
  63. enable_threads="yes";;
  64. esac
  65. fi
  66. if test "$enable_threads" = "yes"; then
  67. AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
  68. fi
  69. case $host in
  70. *-*-solaris* )
  71. AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
  72. ;;
  73. esac
  74. AC_ARG_ENABLE(gcc-warnings,
  75. AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
  76. AC_ARG_ENABLE(local-appdata,
  77. AS_HELP_STRING(--enable-local-appdata, default to host local application data paths on Windows))
  78. if test "$enable_local_appdata" = "yes"; then
  79. AC_DEFINE(ENABLE_LOCAL_APPDATA, 1,
  80. [Defined if we default to host local appdata paths on Windows])
  81. fi
  82. AC_PROG_CC
  83. AC_PROG_CPP
  84. AC_PROG_MAKE_SET
  85. AC_PROG_RANLIB
  86. dnl autoconf 2.59 appears not to support AC_PROG_SED
  87. AC_CHECK_PROG([SED],[sed],[sed],[/bin/false])
  88. AC_PATH_PROG([SHA1SUM], [sha1sum], none)
  89. AC_PATH_PROG([OPENSSL], [openssl], none)
  90. TORUSER=_tor
  91. AC_ARG_WITH(tor-user,
  92. [ --with-tor-user=NAME Specify username for tor daemon ],
  93. [
  94. TORUSER=$withval
  95. ]
  96. )
  97. AC_SUBST(TORUSER)
  98. TORGROUP=_tor
  99. AC_ARG_WITH(tor-group,
  100. [ --with-tor-group=NAME Specify group name for tor daemon ],
  101. [
  102. TORGROUP=$withval
  103. ]
  104. )
  105. AC_SUBST(TORGROUP)
  106. dnl If WIN32 is defined and non-zero, we are building for win32
  107. AC_MSG_CHECKING([for win32])
  108. AC_RUN_IFELSE([
  109. int main(int c, char **v) {
  110. #ifdef WIN32
  111. #if WIN32
  112. return 0;
  113. #else
  114. return 1;
  115. #endif
  116. #else
  117. return 2;
  118. #endif
  119. }],
  120. bwin32=true; AC_MSG_RESULT([yes]),
  121. bwin32=false; AC_MSG_RESULT([no]),
  122. bwin32=cross; AC_MSG_RESULT([cross])
  123. )
  124. if test "$bwin32" = cross; then
  125. AC_MSG_CHECKING([for win32 (cross)])
  126. AC_COMPILE_IFELSE([
  127. #ifdef WIN32
  128. int main(int c, char **v) {return 0;}
  129. #else
  130. #error
  131. int main(int c, char **v) {return x(y);}
  132. #endif
  133. ],
  134. bwin32=true; AC_MSG_RESULT([yes]),
  135. bwin32=false; AC_MSG_RESULT([no]))
  136. fi
  137. if test "$bwin32" = true; then
  138. AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
  139. fi
  140. AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
  141. dnl Enable C99 when compiling with MIPSpro
  142. AC_MSG_CHECKING([for MIPSpro compiler])
  143. AC_COMPILE_IFELSE(AC_LANG_PROGRAM(, [
  144. #if (defined(__sgi) && defined(_COMPILER_VERSION))
  145. #error
  146. return x(y);
  147. #endif
  148. ]),
  149. bmipspro=false; AC_MSG_RESULT(no),
  150. bmipspro=true; AC_MSG_RESULT(yes))
  151. if test "$bmipspro" = true; then
  152. CFLAGS="$CFLAGS -c99"
  153. fi
  154. AC_C_BIGENDIAN
  155. AC_SEARCH_LIBS(socket, [socket])
  156. AC_SEARCH_LIBS(gethostbyname, [nsl])
  157. AC_SEARCH_LIBS(dlopen, [dl])
  158. AC_SEARCH_LIBS(inet_aton, [resolv])
  159. if test "$enable_threads" = "yes"; then
  160. AC_SEARCH_LIBS(pthread_create, [pthread])
  161. AC_SEARCH_LIBS(pthread_detach, [pthread])
  162. fi
  163. dnl -------------------------------------------------------------------
  164. dnl Check for functions before libevent, since libevent-1.2 apparently
  165. dnl exports strlcpy without defining it in a header.
  166. 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)
  167. using_custom_malloc=no
  168. if test x$enable_openbsd_malloc = xyes ; then
  169. AC_DEFINE(HAVE_MALLOC_GOOD_SIZE, 1, [Defined if we have the malloc_good_size function])
  170. using_custom_malloc=yes
  171. fi
  172. if test x$tcmalloc = xyes ; then
  173. using_custom_malloc=yes
  174. fi
  175. if test $using_custom_malloc = no ; then
  176. AC_CHECK_FUNCS(mallinfo malloc_good_size malloc_usable_size)
  177. fi
  178. if test "$enable_threads" = "yes"; then
  179. AC_CHECK_HEADERS(pthread.h)
  180. AC_CHECK_FUNCS(pthread_create)
  181. fi
  182. dnl ------------------------------------------------------
  183. dnl Where do you live, libevent? And how do we call you?
  184. if test "$bwin32" = true; then
  185. TOR_LIB_WS32=-lws2_32
  186. # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  187. # think it's actually necessary.
  188. TOR_LIB_GDI=-lgdi32
  189. else
  190. TOR_LIB_WS32=
  191. TOR_LIB_GDI=
  192. fi
  193. AC_SUBST(TOR_LIB_WS32)
  194. AC_SUBST(TOR_LIB_GDI)
  195. dnl We need to do this before we try our disgusting hack below.
  196. AC_CHECK_HEADERS([sys/types.h])
  197. dnl This is a disgusting hack so we safely include older libevent headers.
  198. AC_CHECK_TYPE(u_int64_t, unsigned long long)
  199. AC_CHECK_TYPE(u_int32_t, unsigned long)
  200. AC_CHECK_TYPE(u_int16_t, unsigned short)
  201. AC_CHECK_TYPE(u_int8_t, unsigned char)
  202. tor_libevent_pkg_redhat="libevent"
  203. tor_libevent_pkg_debian="libevent-dev"
  204. tor_libevent_devpkg_redhat="libevent-devel"
  205. tor_libevent_devpkg_debian="libevent-dev"
  206. TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $TOR_LIB_WS32], [
  207. #ifdef WIN32
  208. #include <winsock2.h>
  209. #endif
  210. #include <stdlib.h>
  211. #include <sys/time.h>
  212. #include <sys/types.h>
  213. #include <event.h>], [
  214. #ifdef WIN32
  215. #include <winsock2.h>
  216. #endif
  217. void exit(int); void *event_init(void);],
  218. [
  219. #ifdef WIN32
  220. {WSADATA d; WSAStartup(0x101,&d); }
  221. #endif
  222. event_init(); exit(0);
  223. ], [--with-libevent-dir], [/opt/libevent])
  224. dnl Now check for particular libevent functions.
  225. save_LIBS="$LIBS"
  226. save_LDFLAGS="$LDFLAGS"
  227. save_CPPFLAGS="$CPPFLAGS"
  228. LIBS="-levent $TOR_LIB_WS32 $LIBS"
  229. LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
  230. CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
  231. AC_CHECK_FUNCS(event_get_version event_get_version_number event_get_method event_set_log_callback evdns_set_outgoing_bind_address event_base_loopexit)
  232. AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
  233. [#include <event.h>
  234. ])
  235. AC_CHECK_HEADERS(event2/event.h event2/dns.h)
  236. LIBS="$save_LIBS"
  237. LDFLAGS="$save_LDFLAGS"
  238. CPPFLAGS="$save_CPPFLAGS"
  239. AM_CONDITIONAL(USE_EXTERNAL_EVDNS, test x$ac_cv_header_event2_dns_h = xyes)
  240. dnl ------------------------------------------------------
  241. dnl Where do you live, openssl? And how do we call you?
  242. tor_openssl_pkg_redhat="openssl"
  243. tor_openssl_pkg_debian="libssl"
  244. tor_openssl_devpkg_redhat="openssl-devel"
  245. tor_openssl_devpkg_debian="libssl-dev"
  246. ALT_openssl_WITHVAL=""
  247. AC_ARG_WITH(ssl-dir,
  248. [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
  249. [
  250. if test "x$withval" != xno && test "x$withval" != "x" ; then
  251. ALT_openssl_WITHVAL="$withval"
  252. fi
  253. ])
  254. TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
  255. [#include <openssl/rand.h>],
  256. [void RAND_add(const void *buf, int num, double entropy);],
  257. [RAND_add((void*)0,0,0); exit(0);], [],
  258. [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
  259. dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
  260. dnl ------------------------------------------------------
  261. dnl Where do you live, zlib? And how do we call you?
  262. tor_openssl_pkg_redhat="zlib"
  263. tor_openssl_pkg_debian="zlib1g"
  264. tor_openssl_devpkg_redhat="zlib-devel"
  265. tor_openssl_devpkg_debian="zlib1g-dev"
  266. TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
  267. [#include <zlib.h>],
  268. [const char * zlibVersion(void);],
  269. [zlibVersion(); exit(0);], [--with-zlib-dir],
  270. [/opt/zlib])
  271. dnl Make sure to enable support for large off_t if available.
  272. AC_SYS_LARGEFILE
  273. 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.))
  274. 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)
  275. dnl These headers are not essential
  276. 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)
  277. TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
  278. [#ifdef HAVE_MALLOC_H
  279. #include <malloc.h>
  280. #endif
  281. #ifdef HAVE_MALLOC_MALLOC_H
  282. #include <malloc/malloc.h>
  283. #endif])
  284. AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
  285. [#ifdef HAVE_SYS_TYPES_H
  286. #include <sys/types.h>
  287. #endif
  288. #ifdef HAVE_SYS_SOCKET_H
  289. #include <sys/socket.h>
  290. #endif])
  291. AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
  292. [#ifdef HAVE_SYS_TYPES_H
  293. #include <sys/types.h>
  294. #endif
  295. #ifdef HAVE_SYS_SOCKET_H
  296. #include <sys/socket.h>
  297. #endif
  298. #ifdef HAVE_NET_IF_H
  299. #include <net/if.h>
  300. #endif])
  301. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  302. linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
  303. [#ifdef HAVE_SYS_TYPES_H
  304. #include <sys/types.h>
  305. #endif
  306. #ifdef HAVE_SYS_SOCKET_H
  307. #include <sys/socket.h>
  308. #endif
  309. #ifdef HAVE_LIMITS_H
  310. #include <limits.h>
  311. #endif
  312. #ifdef HAVE_LINUX_TYPES_H
  313. #include <linux/types.h>
  314. #endif
  315. #ifdef HAVE_NETINET_IN6_H
  316. #include <netinet/in6.h>
  317. #endif
  318. #ifdef HAVE_NETINET_IN_H
  319. #include <netinet/in.h>
  320. #endif])
  321. if test x$transparent = xtrue ; then
  322. transparent_ok=0
  323. if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
  324. transparent_ok=1
  325. fi
  326. if test x$linux_netfilter_ipv4 = x1 ; then
  327. transparent_ok=1
  328. fi
  329. if test x$transparent_ok = x1 ; then
  330. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  331. case $host in
  332. *-*-openbsd*)
  333. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  334. esac
  335. else
  336. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  337. fi
  338. fi
  339. AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
  340. [#ifdef HAVE_SYS_TYPES_H
  341. #include <sys/types.h>
  342. #endif
  343. #ifdef HAVE_SYS_TIME_H
  344. #include <sys/time.h>
  345. #endif])
  346. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  347. dnl Watch out.
  348. AC_CHECK_SIZEOF(int8_t)
  349. AC_CHECK_SIZEOF(int16_t)
  350. AC_CHECK_SIZEOF(int32_t)
  351. AC_CHECK_SIZEOF(int64_t)
  352. AC_CHECK_SIZEOF(uint8_t)
  353. AC_CHECK_SIZEOF(uint16_t)
  354. AC_CHECK_SIZEOF(uint32_t)
  355. AC_CHECK_SIZEOF(uint64_t)
  356. AC_CHECK_SIZEOF(intptr_t)
  357. AC_CHECK_SIZEOF(uintptr_t)
  358. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  359. AC_CHECK_SIZEOF(char)
  360. AC_CHECK_SIZEOF(short)
  361. AC_CHECK_SIZEOF(int)
  362. AC_CHECK_SIZEOF(long)
  363. AC_CHECK_SIZEOF(long long)
  364. AC_CHECK_SIZEOF(__int64)
  365. AC_CHECK_SIZEOF(void *)
  366. AC_CHECK_SIZEOF(time_t)
  367. AC_CHECK_SIZEOF(size_t)
  368. AC_CHECK_TYPES([uint, u_char, ssize_t])
  369. dnl used to include sockaddr_storage, but everybody has that.
  370. AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
  371. [#ifdef HAVE_SYS_TYPES_H
  372. #include <sys/types.h>
  373. #endif
  374. #ifdef HAVE_NETINET_IN_H
  375. #include <netinet/in.h>
  376. #endif
  377. #ifdef HAVE_NETINET_IN6_H
  378. #include <netinet/in6.h>
  379. #endif
  380. #ifdef HAVE_SYS_SOCKET_H
  381. #include <sys/socket.h>
  382. #endif
  383. #ifdef MS_WINDOWS
  384. #define WIN32_WINNT 0x400
  385. #define _WIN32_WINNT 0x400
  386. #define WIN32_LEAN_AND_MEAN
  387. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  388. #include <winsock.h>
  389. #else
  390. #include <winsock2.h>
  391. #include <ws2tcpip.h>
  392. #endif
  393. #endif
  394. ])
  395. AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
  396. [#ifdef HAVE_SYS_TYPES_H
  397. #include <sys/types.h>
  398. #endif
  399. #ifdef HAVE_NETINET_IN_H
  400. #include <netinet/in.h>
  401. #endif
  402. #ifdef HAVE_NETINET_IN6_H
  403. #include <netinet/in6.h>
  404. #endif
  405. #ifdef HAVE_SYS_SOCKET_H
  406. #include <sys/socket.h>
  407. #endif
  408. #ifdef MS_WINDOWS
  409. #define WIN32_WINNT 0x400
  410. #define _WIN32_WINNT 0x400
  411. #define WIN32_LEAN_AND_MEAN
  412. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  413. #include <winsock.h>
  414. #else
  415. #include <winsock2.h>
  416. #include <ws2tcpip.h>
  417. #endif
  418. #endif
  419. ])
  420. AC_CHECK_TYPES([rlim_t], , ,
  421. [#ifdef HAVE_SYS_TYPES_H
  422. #include <sys/types.h>
  423. #endif
  424. #ifdef HAVE_SYS_TIME_H
  425. #include <sys/time.h>
  426. #endif
  427. #ifdef HAVE_SYS_RESOURCE_H
  428. #include <sys/resource.h>
  429. #endif
  430. ])
  431. AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
  432. AC_RUN_IFELSE(AC_LANG_SOURCE([
  433. #ifdef HAVE_SYS_TYPES_H
  434. #include <sys/types.h>
  435. #endif
  436. #ifdef HAVE_SYS_TIME_H
  437. #include <sys/time.h>
  438. #endif
  439. #ifdef HAVE_TIME_H
  440. #include <time.h>
  441. #endif
  442. int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }]),
  443. tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes, tor_cv_time_t_signed=cross)
  444. ])
  445. if test "$tor_cv_time_t_signed" = cross; then
  446. AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  447. fi
  448. if test "$tor_cv_time_t_signed" != no; then
  449. AC_DEFINE([TIME_T_IS_SIGNED], 1,
  450. [Define to 1 iff time_t is signed])
  451. fi
  452. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  453. #ifdef HAVE_SYS_SOCKET_H
  454. #include <sys/socket.h>
  455. #endif
  456. ])
  457. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  458. AC_CHECK_SIZEOF(cell_t)
  459. # Now make sure that NULL can be represented as zero bytes.
  460. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  461. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  462. [[#include <stdlib.h>
  463. #include <string.h>
  464. #include <stdio.h>
  465. #ifdef HAVE_STDDEF_H
  466. #include <stddef.h>
  467. #endif
  468. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  469. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  470. [tor_cv_null_is_zero=yes],
  471. [tor_cv_null_is_zero=no],
  472. [tor_cv_null_is_zero=cross])])
  473. if test "$tor_cv_null_is_zero" = cross ; then
  474. # Cross-compiling; let's hope that the target isn't raving mad.
  475. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  476. fi
  477. if test "$tor_cv_null_is_zero" != no; then
  478. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  479. [Define to 1 iff memset(0) sets pointers to NULL])
  480. fi
  481. # And what happens when we malloc zero?
  482. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  483. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  484. [[#include <stdlib.h>
  485. #include <string.h>
  486. #include <stdio.h>
  487. #ifdef HAVE_STDDEF_H
  488. #include <stddef.h>
  489. #endif
  490. int main () { return malloc(0)?0:1; }]])],
  491. [tor_cv_malloc_zero_works=yes],
  492. [tor_cv_malloc_zero_works=no],
  493. [tor_cv_malloc_zero_works=cross])])
  494. if test "$tor_cv_malloc_zero_works" = cross; then
  495. # Cross-compiling; let's hope that the target isn't raving mad.
  496. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  497. fi
  498. if test "$tor_cv_malloc_zero_works" = yes; then
  499. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  500. [Define to 1 iff malloc(0) returns a pointer])
  501. fi
  502. # whether we seem to be in a 2s-complement world.
  503. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  504. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  505. [[int main () { int problem = ((-99) != (~99)+1);
  506. return problem ? 1 : 0; }]])],
  507. [tor_cv_twos_complement=yes],
  508. [tor_cv_twos_complement=no],
  509. [tor_cv_twos_complement=cross])])
  510. if test "$tor_cv_twos_complement" = cross ; then
  511. # Cross-compiling; let's hope that the target isn't raving mad.
  512. AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
  513. fi
  514. if test "$tor_cv_twos_complement" != no ; then
  515. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  516. [Define to 1 iff we represent negative integers with two's complement])
  517. fi
  518. # Whether we should use the dmalloc memory allocation debugging library.
  519. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  520. AC_ARG_WITH(dmalloc,
  521. [ --with-dmalloc Use debug memory allocation library. ],
  522. [if [[ "$withval" = "yes" ]]; then
  523. dmalloc=1
  524. AC_MSG_RESULT(yes)
  525. else
  526. dmalloc=1
  527. AC_MSG_RESULT(no)
  528. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  529. )
  530. if [[ $dmalloc -eq 1 ]]; then
  531. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  532. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  533. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  534. AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
  535. AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
  536. fi
  537. AC_ARG_WITH(tcmalloc,
  538. [ --with-tcmalloc Use tcmalloc memory allocation library. ],
  539. [ tcmalloc=yes ], [ tcmalloc=no ])
  540. if test x$tcmalloc = xyes ; then
  541. LDFLAGS="-ltcmalloc $LDFLAGS"
  542. fi
  543. # By default, we're going to assume we don't have mlockall()
  544. # bionic and other platforms have various broken mlockall subsystems
  545. # some of systems don't have a working mlockall, some aren't linkable
  546. AC_CHECK_FUNCS(mlockall)
  547. # Allow user to specify an alternate syslog facility
  548. AC_ARG_WITH(syslog-facility,
  549. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  550. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  551. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  552. AC_SUBST(LOGFACILITY)
  553. # Check if we have getresuid and getresgid
  554. AC_CHECK_FUNCS(getresuid getresgid)
  555. # Check for gethostbyname_r in all its glorious incompatible versions.
  556. # (This logic is based on that in Python's configure.in)
  557. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  558. [Define this if you have any gethostbyname_r()])
  559. AC_CHECK_FUNC(gethostbyname_r, [
  560. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  561. OLD_CFLAGS=$CFLAGS
  562. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  563. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([
  564. #include <netdb.h>
  565. ], [[
  566. char *cp1, *cp2;
  567. struct hostent *h1, *h2;
  568. int i1, i2;
  569. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  570. ]]),[
  571. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  572. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  573. [Define this if gethostbyname_r takes 6 arguments])
  574. AC_MSG_RESULT(6)
  575. ], [
  576. AC_TRY_COMPILE([
  577. #include <netdb.h>
  578. ], [
  579. char *cp1, *cp2;
  580. struct hostent *h1;
  581. int i1, i2;
  582. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  583. ], [
  584. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  585. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  586. [Define this if gethostbyname_r takes 5 arguments])
  587. AC_MSG_RESULT(5)
  588. ], [
  589. AC_TRY_COMPILE([
  590. #include <netdb.h>
  591. ], [
  592. char *cp1;
  593. struct hostent *h1;
  594. struct hostent_data hd;
  595. (void) gethostbyname_r(cp1,h1,&hd);
  596. ], [
  597. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  598. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  599. [Define this if gethostbyname_r takes 3 arguments])
  600. AC_MSG_RESULT(3)
  601. ], [
  602. AC_MSG_RESULT(0)
  603. ])
  604. ])
  605. ])
  606. CFLAGS=$OLD_CFLAGS
  607. ])
  608. AC_CACHE_CHECK([whether the C compiler supports __func__],
  609. tor_cv_have_func_macro,
  610. AC_COMPILE_IFELSE([
  611. #include <stdio.h>
  612. int main(int c, char **v) { puts(__func__); }],
  613. tor_cv_have_func_macro=yes,
  614. tor_cv_have_func_macro=no))
  615. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  616. tor_cv_have_FUNC_macro,
  617. AC_COMPILE_IFELSE([
  618. #include <stdio.h>
  619. int main(int c, char **v) { puts(__FUNC__); }],
  620. tor_cv_have_FUNC_macro=yes,
  621. tor_cv_have_FUNC_macro=no))
  622. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  623. tor_cv_have_FUNCTION_macro,
  624. AC_COMPILE_IFELSE([
  625. #include <stdio.h>
  626. int main(int c, char **v) { puts(__FUNCTION__); }],
  627. tor_cv_have_FUNCTION_macro=yes,
  628. tor_cv_have_FUNCTION_macro=no))
  629. if test "$tor_cv_have_func_macro" = 'yes'; then
  630. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  631. fi
  632. if test "$tor_cv_have_FUNC_macro" = 'yes'; then
  633. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  634. fi
  635. if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
  636. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  637. [Defined if the compiler supports __FUNCTION__])
  638. fi
  639. # $prefix stores the value of the --prefix command line option, or
  640. # NONE if the option wasn't set. In the case that it wasn't set, make
  641. # it be the default, so that we can use it to expand directories now.
  642. if test "x$prefix" = "xNONE"; then
  643. prefix=$ac_default_prefix
  644. fi
  645. # and similarly for $exec_prefix
  646. if test "x$exec_prefix" = "xNONE"; then
  647. exec_prefix=$prefix
  648. fi
  649. if test "x$CONFDIR" = "x"; then
  650. CONFDIR=`eval echo $sysconfdir/tor`
  651. fi
  652. AC_SUBST(CONFDIR)
  653. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  654. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  655. BINDIR=`eval echo $bindir`
  656. AC_SUBST(BINDIR)
  657. LOCALSTATEDIR=`eval echo $localstatedir`
  658. AC_SUBST(LOCALSTATEDIR)
  659. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  660. # than autoconf's macros like.
  661. if test "$GCC" = yes; then
  662. CFLAGS="$CFLAGS -Wall -g -O2"
  663. # Disable GCC's strict aliasing checks. They are an hours-to-debug
  664. # accident waiting to happen.
  665. CFLAGS="$CFLAGS -fno-strict-aliasing"
  666. else
  667. CFLAGS="$CFLAGS -g -O"
  668. enable_gcc_warnings=no
  669. fi
  670. # Add some more warnings which we use in development but not in the
  671. # released versions. (Some relevant gcc versions can't handle these.)
  672. if test x$enable_gcc_warnings = xyes; then
  673. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  674. #if !defined(__GNUC__) || (__GNUC__ < 4)
  675. #error
  676. #endif]), have_gcc4=yes, have_gcc4=no)
  677. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  678. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  679. #error
  680. #endif]), have_gcc42=yes, have_gcc42=no)
  681. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  682. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
  683. #error
  684. #endif]), have_gcc43=yes, have_gcc43=no)
  685. save_CFLAGS="$CFLAGS"
  686. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  687. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], []), have_shorten64_flag=yes,
  688. have_shorten64_flag=no)
  689. CFLAGS="$save_CFLAGS"
  690. CFLAGS="$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 -Werror"
  691. # Disabled, so we can use mallinfo(): -Waggregate-return
  692. if test x$have_gcc4 = xyes ; then
  693. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  694. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  695. fi
  696. if test x$have_gcc42 = xyes ; then
  697. # These warnings break gcc 4.0.2 and work on gcc 4.2
  698. # XXXX020 Use -fstack-protector.
  699. # XXXX020 See if any of these work with earlier versions.
  700. CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wnormalized=id -Woverride-init -Wstrict-overflow=1"
  701. # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
  702. fi
  703. if test x$have_gcc43 = xyes ; then
  704. # These warnings break gcc 4.2 and work on gcc 4.3
  705. # XXXX020 See if any of these work with earlier versions.
  706. CFLAGS="$CFLAGS -Wextra -Warray-bounds"
  707. fi
  708. if test x$have_shorten64_flag = xyes ; then
  709. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  710. fi
  711. ##This will break the world on some 64-bit architectures
  712. # CFLAGS="$CFLAGS -Winline"
  713. fi
  714. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
  715. 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 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])
  716. AC_OUTPUT
  717. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  718. ./contrib/updateVersions.pl
  719. fi