configure.in 25 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, 0.2.1.12-alpha-dev)
  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="$CFLAGS -D__DARWIN_UNIX03 -DIPHONE"
  30. fi])
  31. #XXXX020 We should make these enabled or not, before 0.2.0.x-final
  32. AC_ARG_ENABLE(buf-freelists,
  33. AS_HELP_STRING(--disable-buf-freelists, disable freelists for buffer RAM))
  34. AC_ARG_ENABLE(openbsd-malloc,
  35. AS_HELP_STRING(--enable-openbsd-malloc, Use malloc code from openbsd. Linux only))
  36. AC_ARG_ENABLE(instrument-downloads,
  37. AS_HELP_STRING(--enable-instrument-downloads, Instrument downloads of directory resources etc.))
  38. if test x$enable_buf_freelists != xno; then
  39. AC_DEFINE(ENABLE_BUF_FREELISTS, 1,
  40. [Defined if we try to use freelists for buffer RAM chunks])
  41. fi
  42. AM_CONDITIONAL(USE_OPENBSD_MALLOC, test x$enable_openbsd_malloc = xyes)
  43. if test x$enable_instrument_downloads = xyes; then
  44. AC_DEFINE(INSTRUMENT_DOWNLOADS, 1,
  45. [Defined if we want to keep track of how much of each kind of resource we download.])
  46. fi
  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 $host in
  71. *-*-solaris* )
  72. AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
  73. ;;
  74. esac
  75. AC_ARG_ENABLE(geoip-stats,
  76. AS_HELP_STRING(--enable-geoip-stats, enable code for directories to collect per-country statistics))
  77. if test "$enable_geoip_stats" = "yes"; then
  78. AC_DEFINE(ENABLE_GEOIP_STATS, 1, [Defined if we try to collect per-country statistics])
  79. fi
  80. AC_ARG_ENABLE(gcc-warnings,
  81. AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
  82. AC_ARG_ENABLE(local-appdata,
  83. AS_HELP_STRING(--enable-local-appdata, default to host local application data paths on Windows))
  84. if test "$enable_local_appdata" = "yes"; then
  85. AC_DEFINE(ENABLE_LOCAL_APPDATA, 1,
  86. [Defined if we default to host local appdata paths on Windows])
  87. fi
  88. AC_PROG_CC
  89. AC_PROG_CPP
  90. AC_PROG_MAKE_SET
  91. AC_PROG_RANLIB
  92. TORUSER=_tor
  93. AC_ARG_WITH(tor-user,
  94. [ --with-tor-user=NAME Specify username for tor daemon ],
  95. [
  96. TORUSER=$withval
  97. ]
  98. )
  99. AC_SUBST(TORUSER)
  100. TORGROUP=_tor
  101. AC_ARG_WITH(tor-group,
  102. [ --with-tor-group=NAME Specify group name for tor daemon ],
  103. [
  104. TORGROUP=$withval
  105. ]
  106. )
  107. AC_SUBST(TORGROUP)
  108. dnl If WIN32 is defined and non-zero, we are building for win32
  109. AC_MSG_CHECKING([for win32])
  110. AC_RUN_IFELSE([
  111. int main(int c, char **v) {
  112. #ifdef WIN32
  113. #if WIN32
  114. return 0;
  115. #else
  116. return 1;
  117. #endif
  118. #else
  119. return 2;
  120. #endif
  121. }],
  122. bwin32=true; AC_MSG_RESULT([yes]),
  123. bwin32=false; AC_MSG_RESULT([no]),
  124. bwin32=cross; AC_MSG_RESULT([cross])
  125. )
  126. if test "$bwin32" = cross; then
  127. AC_MSG_CHECKING([for win32 (cross)])
  128. AC_COMPILE_IFELSE([
  129. #ifdef WIN32
  130. int main(int c, char **v) {return 0;}
  131. #else
  132. #error
  133. int main(int c, char **v) {return x(y);}
  134. #endif
  135. ],
  136. bwin32=true; AC_MSG_RESULT([yes]),
  137. bwin32=false; AC_MSG_RESULT([no]))
  138. fi
  139. if test "$bwin32" = true; then
  140. AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
  141. fi
  142. AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
  143. dnl Enable C99 when compiling with MIPSpro
  144. AC_MSG_CHECKING([for MIPSpro compiler])
  145. AC_COMPILE_IFELSE(AC_LANG_PROGRAM(, [
  146. #if (defined(__sgi) && defined(_COMPILER_VERSION))
  147. #error
  148. return x(y);
  149. #endif
  150. ]),
  151. bmipspro=false; AC_MSG_RESULT(no),
  152. bmipspro=true; AC_MSG_RESULT(yes))
  153. if test "$bmipspro" = true; then
  154. CFLAGS="$CFLAGS -c99"
  155. fi
  156. AC_C_BIGENDIAN
  157. AC_SEARCH_LIBS(socket, [socket])
  158. AC_SEARCH_LIBS(gethostbyname, [nsl])
  159. AC_SEARCH_LIBS(dlopen, [dl])
  160. AC_SEARCH_LIBS(inet_aton, [resolv])
  161. if test "$enable_threads" = "yes"; then
  162. AC_SEARCH_LIBS(pthread_create, [pthread])
  163. AC_SEARCH_LIBS(pthread_detach, [pthread])
  164. fi
  165. dnl -------------------------------------------------------------------
  166. dnl Check for functions before libevent, since libevent-1.2 apparently
  167. dnl exports strlcpy without defining it in a header.
  168. AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit strlcat strlcpy strtoull getaddrinfo localtime_r gmtime_r memmem strtok_r writev readv flock prctl)
  169. using_custom_malloc=no
  170. if test x$enable_openbsd_malloc = xyes ; then
  171. AC_DEFINE(HAVE_MALLOC_GOOD_SIZE, 1, [Defined if we have the malloc_good_size function])
  172. using_custom_malloc=yes
  173. fi
  174. if test x$tcmalloc = xyes ; then
  175. using_custom_malloc=yes
  176. fi
  177. if test $using_custom_malloc = no ; then
  178. AC_CHECK_FUNCS(mallinfo malloc_good_size malloc_usable_size)
  179. fi
  180. if test "$enable_threads" = "yes"; then
  181. AC_CHECK_HEADERS(pthread.h)
  182. AC_CHECK_FUNCS(pthread_create)
  183. fi
  184. dnl ------------------------------------------------------
  185. dnl Where do you live, libevent? And how do we call you?
  186. if test "$bwin32" = true; then
  187. TOR_LIB_WS32=-lws2_32
  188. # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  189. # think it's actually necessary.
  190. TOR_LIB_GDI=-lgdi32
  191. else
  192. TOR_LIB_WS32=
  193. TOR_LIB_GDI=
  194. fi
  195. AC_SUBST(TOR_LIB_WS32)
  196. AC_SUBST(TOR_LIB_GDI)
  197. dnl We need to do this before we try our disgusting hack below.
  198. AC_CHECK_HEADERS([sys/types.h])
  199. dnl This is a disgusting hack so we safely include older libevent headers.
  200. AC_CHECK_TYPE(u_int64_t, unsigned long long)
  201. AC_CHECK_TYPE(u_int32_t, unsigned long)
  202. AC_CHECK_TYPE(u_int16_t, unsigned short)
  203. AC_CHECK_TYPE(u_int8_t, unsigned char)
  204. tor_libevent_pkg_redhat="libevent"
  205. tor_libevent_pkg_debian="libevent-dev"
  206. tor_libevent_devpkg_redhat="libevent-devel"
  207. tor_libevent_devpkg_debian="libevent-dev"
  208. TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $TOR_LIB_WS32], [
  209. #ifdef WIN32
  210. #include <winsock2.h>
  211. #endif
  212. #include <stdlib.h>
  213. #include <sys/time.h>
  214. #include <sys/types.h>
  215. #include <event.h>], [
  216. #ifdef WIN32
  217. #include <winsock2.h>
  218. #endif
  219. void exit(int); void *event_init(void);],
  220. [
  221. #ifdef WIN32
  222. {WSADATA d; WSAStartup(0x101,&d); }
  223. #endif
  224. event_init(); exit(0);
  225. ], [--with-libevent-dir], [/opt/libevent])
  226. dnl Now check for particular libevent functions.
  227. save_LIBS="$LIBS"
  228. save_LDFLAGS="$LDFLAGS"
  229. save_CPPFLAGS="$CPPFLAGS"
  230. LIBS="-levent $TOR_LIB_WS32 $LIBS"
  231. LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
  232. CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
  233. AC_CHECK_FUNCS(event_get_version event_get_method event_set_log_callback)
  234. AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
  235. [#include <event.h>
  236. ])
  237. LIBS="$save_LIBS"
  238. LDFLAGS="$save_LDFLAGS"
  239. CPPFLAGS="$save_CPPFLAGS"
  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 $LDFLAGS"
  542. fi
  543. # Allow user to specify an alternate syslog facility
  544. AC_ARG_WITH(syslog-facility,
  545. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  546. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  547. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  548. AC_SUBST(LOGFACILITY)
  549. # Check if we have getresuid and getresgid
  550. AC_CHECK_FUNCS(getresuid getresgid)
  551. # Check for gethostbyname_r in all its glorious incompatible versions.
  552. # (This logic is based on that in Python's configure.in)
  553. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  554. [Define this if you have any gethostbyname_r()])
  555. AC_CHECK_FUNC(gethostbyname_r, [
  556. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  557. OLD_CFLAGS=$CFLAGS
  558. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  559. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([
  560. #include <netdb.h>
  561. ], [[
  562. char *cp1, *cp2;
  563. struct hostent *h1, *h2;
  564. int i1, i2;
  565. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  566. ]]),[
  567. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  568. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  569. [Define this if gethostbyname_r takes 6 arguments])
  570. AC_MSG_RESULT(6)
  571. ], [
  572. AC_TRY_COMPILE([
  573. #include <netdb.h>
  574. ], [
  575. char *cp1, *cp2;
  576. struct hostent *h1;
  577. int i1, i2;
  578. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  579. ], [
  580. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  581. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  582. [Define this if gethostbyname_r takes 5 arguments])
  583. AC_MSG_RESULT(5)
  584. ], [
  585. AC_TRY_COMPILE([
  586. #include <netdb.h>
  587. ], [
  588. char *cp1;
  589. struct hostent *h1;
  590. struct hostent_data hd;
  591. (void) gethostbyname_r(cp1,h1,&hd);
  592. ], [
  593. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  594. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  595. [Define this if gethostbyname_r takes 3 arguments])
  596. AC_MSG_RESULT(3)
  597. ], [
  598. AC_MSG_RESULT(0)
  599. ])
  600. ])
  601. ])
  602. CFLAGS=$OLD_CFLAGS
  603. ])
  604. AC_CACHE_CHECK([whether the C compiler supports __func__],
  605. tor_cv_have_func_macro,
  606. AC_COMPILE_IFELSE([
  607. #include <stdio.h>
  608. int main(int c, char **v) { puts(__func__); }],
  609. tor_cv_have_func_macro=yes,
  610. tor_cv_have_func_macro=no))
  611. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  612. tor_cv_have_FUNC_macro,
  613. AC_COMPILE_IFELSE([
  614. #include <stdio.h>
  615. int main(int c, char **v) { puts(__FUNC__); }],
  616. tor_cv_have_FUNC_macro=yes,
  617. tor_cv_have_FUNC_macro=no))
  618. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  619. tor_cv_have_FUNCTION_macro,
  620. AC_COMPILE_IFELSE([
  621. #include <stdio.h>
  622. int main(int c, char **v) { puts(__FUNCTION__); }],
  623. tor_cv_have_FUNCTION_macro=yes,
  624. tor_cv_have_FUNCTION_macro=no))
  625. if test "$tor_cv_have_func_macro" = 'yes'; then
  626. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  627. fi
  628. if test "$tor_cv_have_FUNC_macro" = 'yes'; then
  629. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  630. fi
  631. if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
  632. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  633. [Defined if the compiler supports __FUNCTION__])
  634. fi
  635. # $prefix stores the value of the --prefix command line option, or
  636. # NONE if the option wasn't set. In the case that it wasn't set, make
  637. # it be the default, so that we can use it to expand directories now.
  638. if test "x$prefix" = "xNONE"; then
  639. prefix=$ac_default_prefix
  640. fi
  641. # and similarly for $exec_prefix
  642. if test "x$exec_prefix" = "xNONE"; then
  643. exec_prefix=$prefix
  644. fi
  645. if test "x$CONFDIR" = "x"; then
  646. CONFDIR=`eval echo $sysconfdir/tor`
  647. fi
  648. AC_SUBST(CONFDIR)
  649. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  650. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  651. BINDIR=`eval echo $bindir`
  652. AC_SUBST(BINDIR)
  653. LOCALSTATEDIR=`eval echo $localstatedir`
  654. AC_SUBST(LOCALSTATEDIR)
  655. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  656. # than autoconf's macros like.
  657. if test "$GCC" = yes; then
  658. CFLAGS="$CFLAGS -Wall -g -O2"
  659. # Disable GCC's strict aliasing checks. They are an hours-to-debug
  660. # accident waiting to happen.
  661. CFLAGS="$CFLAGS -fno-strict-aliasing"
  662. else
  663. CFLAGS="$CFLAGS -g -O"
  664. enable_gcc_warnings=no
  665. fi
  666. # Add some more warnings which we use in development but not in the
  667. # released versions. (Some relevant gcc versions can't handle these.)
  668. if test x$enable_gcc_warnings = xyes; then
  669. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  670. #if !defined(__GNUC__) || (__GNUC__ < 4)
  671. #error
  672. #endif]), have_gcc4=yes, have_gcc4=no)
  673. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  674. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  675. #error
  676. #endif]), have_gcc42=yes, have_gcc42=no)
  677. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  678. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
  679. #error
  680. #endif]), have_gcc43=yes, have_gcc43=no)
  681. save_CFLAGS="$CFLAGS"
  682. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  683. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], []), have_shorten64_flag=yes,
  684. have_shorten64_flag=no)
  685. CFLAGS="$save_CFLAGS"
  686. CFLAGS="$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"
  687. # Disabled, so we can use mallinfo(): -Waggregate-return
  688. if test x$have_gcc4 = xyes ; then
  689. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  690. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  691. fi
  692. if test x$have_gcc42 = xyes ; then
  693. # These warnings break gcc 4.0.2 and work on gcc 4.2
  694. # XXXX020 Use -fstack-protector.
  695. # XXXX020 See if any of these work with earlier versions.
  696. CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wnormalized=id -Woverride-init -Wstrict-overflow=1"
  697. # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
  698. fi
  699. if test x$have_gcc43 = xyes ; then
  700. # These warnings break gcc 4.2 and work on gcc 4.3
  701. # XXXX020 See if any of these work with earlier versions.
  702. CFLAGS="$CFLAGS -Wextra -Warray-bounds"
  703. fi
  704. if test x$have_shorten64_flag = xyes ; then
  705. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  706. fi
  707. ##This will break the world on some 64-bit architectures
  708. # CFLAGS="$CFLAGS -Winline"
  709. fi
  710. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
  711. 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 contrib/tor.wxs])
  712. AC_OUTPUT
  713. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  714. ./contrib/updateVersions.pl
  715. fi