configure.in 23 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, 0.2.0.35)
  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../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="$CFLAGS -D__DARWIN_UNIX03 -DIPHONE"
  30. fi])
  31. #XXXX020 We should make these enabled or not, before 0.2.0.x-final
  32. AC_ARG_ENABLE(cell-pool,
  33. AS_HELP_STRING(--disable-cell-pool, disable pool allocator for cells))
  34. AC_ARG_ENABLE(buf-freelists,
  35. AS_HELP_STRING(--disable-buf-freelists, disable freelists for buffer RAM))
  36. AC_ARG_ENABLE(openbsd-malloc,
  37. AS_HELP_STRING(--enable-openbsd-malloc, Use malloc code from openbsd. Linux only))
  38. if test x$enable_cell_pool != xno; then
  39. AC_DEFINE(ENABLE_CELL_POOL, 1,
  40. [Defined if we try to use the pool allocator for queued cells])
  41. fi
  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. AC_ARG_ENABLE(transparent,
  48. AS_HELP_STRING(--disable-transparent, disable transparent proxy support),
  49. [case "${enableval}" in
  50. yes) transparent=true ;;
  51. no) transparent=false ;;
  52. *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
  53. esac], [transparent=true])
  54. AC_ARG_ENABLE(threads,
  55. AS_HELP_STRING(--disable-threads, disable multi-threading support))
  56. if test x$enable_threads = x; then
  57. case $host in
  58. *-*-solaris* )
  59. # Don't try multithreading on solaris -- cpuworkers seem to lock.
  60. AC_MSG_NOTICE([You are running Solaris; Sometimes threading makes
  61. cpu workers lock up here, so I will disable threads.])
  62. enable_threads="no";;
  63. *)
  64. enable_threads="yes";;
  65. esac
  66. fi
  67. if test "$enable_threads" = "yes"; then
  68. AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
  69. fi
  70. case $host in
  71. *-*-solaris* )
  72. AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
  73. ;;
  74. esac
  75. AC_ARG_ENABLE(gcc-warnings,
  76. AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
  77. AC_PROG_CC
  78. AC_PROG_CPP
  79. AC_PROG_MAKE_SET
  80. AC_PROG_RANLIB
  81. TORUSER=_tor
  82. AC_ARG_WITH(tor-user,
  83. [ --with-tor-user=NAME Specify username for tor daemon ],
  84. [
  85. TORUSER=$withval
  86. ]
  87. )
  88. AC_SUBST(TORUSER)
  89. TORGROUP=_tor
  90. AC_ARG_WITH(tor-group,
  91. [ --with-tor-group=NAME Specify group name for tor daemon ],
  92. [
  93. TORGROUP=$withval
  94. ]
  95. )
  96. AC_SUBST(TORGROUP)
  97. dnl If WIN32 is defined and non-zero, we are building for win32
  98. AC_MSG_CHECKING([for win32])
  99. AC_RUN_IFELSE([
  100. int main(int c, char **v) {
  101. #ifdef WIN32
  102. #if WIN32
  103. return 0;
  104. #else
  105. return 1;
  106. #endif
  107. #else
  108. return 2;
  109. #endif
  110. }],
  111. bwin32=true; AC_MSG_RESULT([yes]),
  112. bwin32=false; AC_MSG_RESULT([no]),
  113. bwin32=cross; AC_MSG_RESULT([cross])
  114. )
  115. if test "$bwin32" = cross; then
  116. AC_MSG_CHECKING([for win32 (cross)])
  117. AC_COMPILE_IFELSE([
  118. #ifdef WIN32
  119. int main(int c, char **v) {return 0;}
  120. #else
  121. #error
  122. int main(int c, char **v) {return x(y);}
  123. #endif
  124. ],
  125. bwin32=true; AC_MSG_RESULT([yes]),
  126. bwin32=false; AC_MSG_RESULT([no]))
  127. fi
  128. if test "$bwin32" = true; then
  129. AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
  130. fi
  131. AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
  132. dnl Enable C99 when compiling with MIPSpro
  133. AC_MSG_CHECKING([for MIPSpro compiler])
  134. AC_COMPILE_IFELSE(AC_LANG_PROGRAM(, [
  135. #if (defined(__sgi) && defined(_COMPILER_VERSION))
  136. #error
  137. return x(y);
  138. #endif
  139. ]),
  140. bmipspro=false; AC_MSG_RESULT(no),
  141. bmipspro=true; AC_MSG_RESULT(yes))
  142. if test "$bmipspro" = true; then
  143. CFLAGS="$CFLAGS -c99"
  144. fi
  145. AC_C_BIGENDIAN
  146. AC_SEARCH_LIBS(socket, [socket])
  147. AC_SEARCH_LIBS(gethostbyname, [nsl])
  148. AC_SEARCH_LIBS(dlopen, [dl])
  149. AC_SEARCH_LIBS(inet_aton, [resolv])
  150. if test "$enable_threads" = "yes"; then
  151. AC_SEARCH_LIBS(pthread_create, [pthread])
  152. AC_SEARCH_LIBS(pthread_detach, [pthread])
  153. fi
  154. dnl -------------------------------------------------------------------
  155. dnl Check for functions before libevent, since libevent-1.2 apparently
  156. dnl exports strlcpy without defining it in a header.
  157. AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit strlcat strlcpy strtoull ftello getaddrinfo localtime_r gmtime_r memmem strtok_r inet_pton inet_ntop)
  158. using_custom_malloc=no
  159. if test x$enable_openbsd_malloc = xyes ; then
  160. using_custom_malloc=yes
  161. fi
  162. if test x$tcmalloc = xyes ; then
  163. using_custom_malloc=yes
  164. fi
  165. if test $using_custom_malloc = no ; then
  166. AC_CHECK_FUNCS(mallinfo malloc_good_size malloc_usable_size)
  167. fi
  168. if test "$enable_threads" = "yes"; then
  169. AC_CHECK_HEADERS(pthread.h)
  170. AC_CHECK_FUNCS(pthread_create)
  171. fi
  172. dnl ------------------------------------------------------
  173. dnl Where do you live, libevent? And how do we call you?
  174. if test "$bwin32" = true; then
  175. TOR_LIB_WS32=-lws2_32
  176. # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  177. # think it's actually necessary.
  178. TOR_LIB_GDI=-lgdi32
  179. else
  180. TOR_LIB_WS32=
  181. TOR_LIB_GDI=
  182. fi
  183. AC_SUBST(TOR_LIB_WS32)
  184. AC_SUBST(TOR_LIB_GDI)
  185. dnl We need to do this before we try our disgusting hack below.
  186. AC_CHECK_HEADERS([sys/types.h])
  187. dnl This is a disgusting hack so we safely include older libevent headers.
  188. AC_CHECK_TYPE(u_int64_t, unsigned long long)
  189. AC_CHECK_TYPE(u_int32_t, unsigned long)
  190. AC_CHECK_TYPE(u_int16_t, unsigned short)
  191. AC_CHECK_TYPE(u_int8_t, unsigned char)
  192. tor_libevent_pkg_redhat="libevent"
  193. tor_libevent_pkg_debian="libevent-dev"
  194. tor_libevent_devpkg_redhat="libevent-devel"
  195. tor_libevent_devpkg_debian="libevent-dev"
  196. TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $TOR_LIB_WS32], [
  197. #ifdef WIN32
  198. #include <winsock2.h>
  199. #endif
  200. #include <stdlib.h>
  201. #include <sys/time.h>
  202. #include <sys/types.h>
  203. #include <event.h>], [
  204. #ifdef WIN32
  205. #include <winsock2.h>
  206. #endif
  207. void exit(int); void *event_init(void);],
  208. [
  209. #ifdef WIN32
  210. {WSADATA d; WSAStartup(0x101,&d); }
  211. #endif
  212. event_init(); exit(0);
  213. ], [--with-libevent-dir], [/opt/libevent])
  214. dnl Now check for particular libevent functions.
  215. save_LIBS="$LIBS"
  216. save_LDFLAGS="$LDFLAGS"
  217. save_CPPFLAGS="$CPPFLAGS"
  218. LIBS="-levent $TOR_LIB_WS32 $LIBS"
  219. LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
  220. CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
  221. AC_CHECK_FUNCS(event_get_version event_get_method event_set_log_callback)
  222. LIBS="$save_LIBS"
  223. LDFLAGS="$save_LDFLAGS"
  224. CPPFLAGS="$save_CPPFLAGS"
  225. dnl ------------------------------------------------------
  226. dnl Where do you live, openssl? And how do we call you?
  227. tor_openssl_pkg_redhat="openssl"
  228. tor_openssl_pkg_debian="libssl"
  229. tor_openssl_devpkg_redhat="openssl-devel"
  230. tor_openssl_devpkg_debian="libssl-dev"
  231. ALT_openssl_WITHVAL=""
  232. AC_ARG_WITH(ssl-dir,
  233. [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
  234. [
  235. if test "x$withval" != xno && test "x$withval" != "x" ; then
  236. ALT_openssl_WITHVAL="$withval"
  237. fi
  238. ])
  239. TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
  240. [#include <openssl/rand.h>],
  241. [void RAND_add(const void *buf, int num, double entropy);],
  242. [RAND_add((void*)0,0,0); exit(0);], [],
  243. [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
  244. dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
  245. dnl ------------------------------------------------------
  246. dnl Where do you live, zlib? And how do we call you?
  247. tor_openssl_pkg_redhat="zlib"
  248. tor_openssl_pkg_debian="zlib1g"
  249. tor_openssl_devpkg_redhat="zlib-devel"
  250. tor_openssl_devpkg_debian="zlib1g-dev"
  251. TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
  252. [#include <zlib.h>],
  253. [const char * zlibVersion(void);],
  254. [zlibVersion(); exit(0);], [--with-zlib-dir],
  255. [/opt/zlib])
  256. dnl Make sure to enable support for large off_t if available.
  257. AC_SYS_LARGEFILE
  258. 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.))
  259. AC_CHECK_HEADERS(netdb.h sys/ioctl.h sys/socket.h arpa/inet.h netinet/in.h pwd.h grp.h sys/un.h)
  260. dnl These headers are not essential
  261. 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)
  262. TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
  263. [#ifdef HAVE_MALLOC_H
  264. #include <malloc.h>
  265. #endif
  266. #ifdef HAVE_MALLOC_MALLOC_H
  267. #include <malloc/malloc.h>
  268. #endif])
  269. AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
  270. [#ifdef HAVE_SYS_TYPES_H
  271. #include <sys/types.h>
  272. #endif
  273. #ifdef HAVE_SYS_SOCKET_H
  274. #include <sys/socket.h>
  275. #endif])
  276. AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
  277. [#ifdef HAVE_SYS_TYPES_H
  278. #include <sys/types.h>
  279. #endif
  280. #ifdef HAVE_SYS_SOCKET_H
  281. #include <sys/socket.h>
  282. #endif
  283. #ifdef HAVE_NET_IF_H
  284. #include <net/if.h>
  285. #endif])
  286. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  287. linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
  288. [#ifdef HAVE_SYS_TYPES_H
  289. #include <sys/types.h>
  290. #endif
  291. #ifdef HAVE_SYS_SOCKET_H
  292. #include <sys/socket.h>
  293. #endif
  294. #ifdef HAVE_LIMITS_H
  295. #include <limits.h>
  296. #endif
  297. #ifdef HAVE_LINUX_TYPES_H
  298. #include <linux/types.h>
  299. #endif
  300. #ifdef HAVE_NETINET_IN6_H
  301. #include <netinet/in6.h>
  302. #endif
  303. #ifdef HAVE_NETINET_IN_H
  304. #include <netinet/in.h>
  305. #endif])
  306. if test x$transparent = xtrue ; then
  307. transparent_ok=0
  308. if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
  309. transparent_ok=1
  310. fi
  311. if test x$linux_netfilter_ipv4 = x1 ; then
  312. transparent_ok=1
  313. fi
  314. if test x$transparent_ok = x1 ; then
  315. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  316. case $host in
  317. *-*-openbsd*)
  318. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  319. esac
  320. else
  321. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  322. fi
  323. fi
  324. AC_FUNC_FSEEKO
  325. AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
  326. [#ifdef HAVE_SYS_TYPES_H
  327. #include <sys/types.h>
  328. #endif
  329. #ifdef HAVE_SYS_TIME_H
  330. #include <sys/time.h>
  331. #endif])
  332. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  333. dnl Watch out.
  334. AC_CHECK_SIZEOF(int8_t)
  335. AC_CHECK_SIZEOF(int16_t)
  336. AC_CHECK_SIZEOF(int32_t)
  337. AC_CHECK_SIZEOF(int64_t)
  338. AC_CHECK_SIZEOF(uint8_t)
  339. AC_CHECK_SIZEOF(uint16_t)
  340. AC_CHECK_SIZEOF(uint32_t)
  341. AC_CHECK_SIZEOF(uint64_t)
  342. AC_CHECK_SIZEOF(intptr_t)
  343. AC_CHECK_SIZEOF(uintptr_t)
  344. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  345. AC_CHECK_SIZEOF(char)
  346. AC_CHECK_SIZEOF(short)
  347. AC_CHECK_SIZEOF(int)
  348. AC_CHECK_SIZEOF(long)
  349. AC_CHECK_SIZEOF(long long)
  350. AC_CHECK_SIZEOF(__int64)
  351. AC_CHECK_SIZEOF(void *)
  352. AC_CHECK_SIZEOF(time_t)
  353. AC_CHECK_SIZEOF(size_t)
  354. AC_CHECK_TYPES([uint, u_char, ssize_t])
  355. AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, struct sockaddr_storage, sa_family_t], , ,
  356. [#ifdef HAVE_SYS_TYPES_H
  357. #include <sys/types.h>
  358. #endif
  359. #ifdef HAVE_NETINET_IN_H
  360. #include <netinet/in.h>
  361. #endif
  362. #ifdef HAVE_NETINET_IN6_H
  363. #include <netinet/in6.h>
  364. #endif
  365. #ifdef HAVE_SYS_SOCKET_H
  366. #include <sys/socket.h>
  367. #endif
  368. #ifdef MS_WINDOWS
  369. #define WIN32_WINNT 0x400
  370. #define _WIN32_WINNT 0x400
  371. #define WIN32_LEAN_AND_MEAN
  372. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  373. #include <winsock.h>
  374. #else
  375. #include <winsock2.h>
  376. #include <ws2tcpip.h>
  377. #endif
  378. #endif
  379. ])
  380. AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16], , ,
  381. [#ifdef HAVE_SYS_TYPES_H
  382. #include <sys/types.h>
  383. #endif
  384. #ifdef HAVE_NETINET_IN_H
  385. #include <netinet/in.h>
  386. #endif
  387. #ifdef HAVE_NETINET_IN6_H
  388. #include <netinet/in6.h>
  389. #endif
  390. #ifdef HAVE_SYS_SOCKET_H
  391. #include <sys/socket.h>
  392. #endif
  393. #ifdef MS_WINDOWS
  394. #define WIN32_WINNT 0x400
  395. #define _WIN32_WINNT 0x400
  396. #define WIN32_LEAN_AND_MEAN
  397. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  398. #include <winsock.h>
  399. #else
  400. #include <winsock2.h>
  401. #include <ws2tcpip.h>
  402. #endif
  403. #endif
  404. ])
  405. AC_CHECK_TYPES([rlim_t], , ,
  406. [#ifdef HAVE_SYS_TYPES_H
  407. #include <sys/types.h>
  408. #endif
  409. #ifdef HAVE_SYS_TIME_H
  410. #include <sys/time.h>
  411. #endif
  412. #ifdef HAVE_SYS_RESOURCE_H
  413. #include <sys/resource.h>
  414. #endif
  415. ])
  416. AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
  417. AC_RUN_IFELSE(AC_LANG_SOURCE([
  418. #ifdef HAVE_SYS_TYPES_H
  419. #include <sys/types.h>
  420. #endif
  421. #ifdef HAVE_SYS_TIME_H
  422. #include <sys/time.h>
  423. #endif
  424. #ifdef HAVE_TIME_H
  425. #include <time.h>
  426. #endif
  427. int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }]),
  428. tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes, tor_cv_time_t_signed=cross)
  429. ])
  430. if test "$tor_cv_time_t_signed" = cross; then
  431. AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  432. fi
  433. if test "$tor_cv_time_t_signed" != no; then
  434. AC_DEFINE([TIME_T_IS_SIGNED], 1,
  435. [Define to 1 iff time_t is signed])
  436. fi
  437. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  438. #ifdef HAVE_SYS_SOCKET_H
  439. #include <sys/socket.h>
  440. #endif
  441. ])
  442. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  443. AC_CHECK_SIZEOF(cell_t)
  444. # Now make sure that NULL can be represented as zero bytes.
  445. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  446. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  447. [[#include <stdlib.h>
  448. #include <string.h>
  449. #include <stdio.h>
  450. #ifdef HAVE_STDDEF_H
  451. #include <stddef.h>
  452. #endif
  453. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  454. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  455. [tor_cv_null_is_zero=yes],
  456. [tor_cv_null_is_zero=no],
  457. [tor_cv_null_is_zero=cross])])
  458. if test "$tor_cv_null_is_zero" = cross ; then
  459. # Cross-compiling; let's hope that the target isn't raving mad.
  460. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  461. fi
  462. if test "$tor_cv_null_is_zero" != no; then
  463. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  464. [Define to 1 iff memset(0) sets pointers to NULL])
  465. fi
  466. # And what happens when we malloc zero?
  467. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  468. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  469. [[#include <stdlib.h>
  470. #include <string.h>
  471. #include <stdio.h>
  472. #ifdef HAVE_STDDEF_H
  473. #include <stddef.h>
  474. #endif
  475. int main () { return malloc(0)?0:1; }]])],
  476. [tor_cv_malloc_zero_works=yes],
  477. [tor_cv_malloc_zero_works=no],
  478. [tor_cv_malloc_zero_works=cross])])
  479. if test "$tor_cv_malloc_zero_works" = cross; then
  480. # Cross-compiling; let's hope that the target isn't raving mad.
  481. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  482. fi
  483. if test "$tor_cv_malloc_zero_works" = yes; then
  484. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  485. [Define to 1 iff malloc(0) returns a pointer])
  486. fi
  487. # whether we seem to be in a 2s-complement world.
  488. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  489. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  490. [[int main () { int problem = ((-99) != (~99)+1);
  491. return problem ? 1 : 0; }]])],
  492. [tor_cv_twos_complement=yes],
  493. [tor_cv_twos_complement=no],
  494. [tor_cv_twos_complement=cross])])
  495. if test "$tor_cv_twos_complement" = cross ; then
  496. # Cross-compiling; let's hope that the target isn't raving mad.
  497. AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
  498. fi
  499. if test "$tor_cv_twos_complement" != no ; then
  500. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  501. [Define to 1 iff we represent negative integers with two's complement])
  502. fi
  503. # Whether we should use the dmalloc memory allocation debugging library.
  504. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  505. AC_ARG_WITH(dmalloc,
  506. [ --with-dmalloc Use debug memory allocation library. ],
  507. [if [[ "$withval" = "yes" ]]; then
  508. dmalloc=1
  509. AC_MSG_RESULT(yes)
  510. else
  511. dmalloc=1
  512. AC_MSG_RESULT(no)
  513. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  514. )
  515. if [[ $dmalloc -eq 1 ]]; then
  516. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  517. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  518. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  519. AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
  520. AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
  521. fi
  522. AC_ARG_WITH(tcmalloc,
  523. [ --with-tcmalloc Use tcmalloc memory allocation library. ],
  524. [ tcmalloc=yes ], [ tcmalloc=no ])
  525. if test x$tcmalloc = xyes ; then
  526. LDFLAGS="-ltcmalloc $LDFLAGS"
  527. fi
  528. # Allow user to specify an alternate syslog facility
  529. AC_ARG_WITH(syslog-facility,
  530. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  531. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  532. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  533. AC_SUBST(LOGFACILITY)
  534. # Check if we have getresuid and getresgid
  535. AC_CHECK_FUNCS(getresuid getresgid)
  536. # Check for gethostbyname_r in all its glorious incompatible versions.
  537. # (This logic is based on that in Python's configure.in)
  538. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  539. [Define this if you have any gethostbyname_r()])
  540. AC_CHECK_FUNC(gethostbyname_r, [
  541. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  542. OLD_CFLAGS=$CFLAGS
  543. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  544. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([
  545. #include <netdb.h>
  546. ], [[
  547. char *cp1, *cp2;
  548. struct hostent *h1, *h2;
  549. int i1, i2;
  550. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  551. ]]),[
  552. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  553. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  554. [Define this if gethostbyname_r takes 6 arguments])
  555. AC_MSG_RESULT(6)
  556. ], [
  557. AC_TRY_COMPILE([
  558. #include <netdb.h>
  559. ], [
  560. char *cp1, *cp2;
  561. struct hostent *h1;
  562. int i1, i2;
  563. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  564. ], [
  565. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  566. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  567. [Define this if gethostbyname_r takes 5 arguments])
  568. AC_MSG_RESULT(5)
  569. ], [
  570. AC_TRY_COMPILE([
  571. #include <netdb.h>
  572. ], [
  573. char *cp1;
  574. struct hostent *h1;
  575. struct hostent_data hd;
  576. (void) gethostbyname_r(cp1,h1,&hd);
  577. ], [
  578. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  579. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  580. [Define this if gethostbyname_r takes 3 arguments])
  581. AC_MSG_RESULT(3)
  582. ], [
  583. AC_MSG_RESULT(0)
  584. ])
  585. ])
  586. ])
  587. CFLAGS=$OLD_CFLAGS
  588. ])
  589. AC_CACHE_CHECK([whether the C compiler supports __func__],
  590. tor_cv_have_func_macro,
  591. AC_COMPILE_IFELSE([
  592. #include <stdio.h>
  593. int main(int c, char **v) { puts(__func__); }],
  594. tor_cv_have_func_macro=yes,
  595. tor_cv_have_func_macro=no))
  596. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  597. tor_cv_have_FUNC_macro,
  598. AC_COMPILE_IFELSE([
  599. #include <stdio.h>
  600. int main(int c, char **v) { puts(__FUNC__); }],
  601. tor_cv_have_FUNC_macro=yes,
  602. tor_cv_have_FUNC_macro=no))
  603. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  604. tor_cv_have_FUNCTION_macro,
  605. AC_COMPILE_IFELSE([
  606. #include <stdio.h>
  607. int main(int c, char **v) { puts(__FUNCTION__); }],
  608. tor_cv_have_FUNCTION_macro=yes,
  609. tor_cv_have_FUNCTION_macro=no))
  610. if test "$tor_cv_have_func_macro" = 'yes'; then
  611. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  612. fi
  613. if test "$tor_cv_have_FUNC_macro" = 'yes'; then
  614. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  615. fi
  616. if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
  617. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  618. [Defined if the compiler supports __FUNCTION__])
  619. fi
  620. # $prefix stores the value of the --prefix command line option, or
  621. # NONE if the option wasn't set. In the case that it wasn't set, make
  622. # it be the default, so that we can use it to expand directories now.
  623. if test "x$prefix" = "xNONE"; then
  624. prefix=$ac_default_prefix
  625. fi
  626. # and similarly for $exec_prefix
  627. if test "x$exec_prefix" = "xNONE"; then
  628. exec_prefix=$prefix
  629. fi
  630. if test "x$CONFDIR" = "x"; then
  631. CONFDIR=`eval echo $sysconfdir/tor`
  632. fi
  633. AC_SUBST(CONFDIR)
  634. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  635. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  636. BINDIR=`eval echo $bindir`
  637. AC_SUBST(BINDIR)
  638. LOCALSTATEDIR=`eval echo $localstatedir`
  639. AC_SUBST(LOCALSTATEDIR)
  640. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  641. # than autoconf's macros like.
  642. if test "$ac_cv_c_compiler_gnu" = yes; then
  643. CFLAGS="$CFLAGS -Wall -g -O2"
  644. else
  645. CFLAGS="$CFLAGS -g -O"
  646. enable_gcc_warnings=no
  647. fi
  648. # Add some more warnings which we use in development but not in the
  649. # released versions. (Some relevant gcc versions can't handle these.)
  650. if test x$enable_gcc_warnings = xyes; then
  651. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  652. #if !defined(__GNUC__) || (__GNUC__ < 4)
  653. #error
  654. #endif]), have_gcc4=yes, have_gcc4=no)
  655. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  656. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  657. #error
  658. #endif]), have_gcc42=yes, have_gcc42=no)
  659. save_CFLAGS="$CFLAGS"
  660. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  661. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], []), have_shorten64_flag=yes,
  662. have_shorten64_flag=no)
  663. CFLAGS="$save_CFLAGS"
  664. CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Wwrite-strings -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wbad-function-cast -Wswitch-enum -Werror"
  665. # Disabled, so we can use mallinfo(): -Waggregate-return
  666. if test x$have_gcc4 = xyes ; then
  667. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  668. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  669. fi
  670. if test x$have_gcc42 = xyes ; then
  671. # These warnings break gcc 4.0.2 and work on gcc 4.2
  672. # XXXX020 Use -fstack-protector.
  673. # XXXX020 See if any of these work with earlier versions.
  674. CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wnormalized=id -Woverride-init -Wstrict-overflow=1"
  675. # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
  676. fi
  677. if test x$have_shorten64_flag = xyes ; then
  678. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  679. fi
  680. ##This will break the world on some 64-bit architectures
  681. # CFLAGS="$CFLAGS -Winline"
  682. fi
  683. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
  684. 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/win32/Makefile src/tools/Makefile contrib/suse/Makefile contrib/suse/tor.sh])
  685. AC_OUTPUT
  686. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  687. ./contrib/updateVersions.pl
  688. fi