configure.in 22 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753
  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, 0.2.1.0-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="$CFLAGS -D__DARWIN_UNIX03 -DIPHONE"
  30. fi])
  31. #XXXX020 We should make these enabled or not, before 0.2.0.x-final
  32. AC_ARG_ENABLE(cell-pool,
  33. AS_HELP_STRING(--disable-cell-pool, disable pool allocator for cells))
  34. AC_ARG_ENABLE(buf-freelists,
  35. AS_HELP_STRING(--disable-buf-freelists, disable freelists for buffer RAM))
  36. AC_ARG_ENABLE(openbsd-malloc,
  37. AS_HELP_STRING(--enable-openbsd-malloc, Use malloc code from openbsd. Linux only))
  38. if test x$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 "$enable_threads" = "yes"; then
  151. AC_SEARCH_LIBS(pthread_create, [pthread])
  152. AC_SEARCH_LIBS(pthread_detach, [pthread])
  153. fi
  154. dnl -------------------------------------------------------------------
  155. dnl Check for functions before libevent, since libevent-1.2 apparently
  156. dnl exports strlcpy without defining it in a header.
  157. AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit strlcat strlcpy strtoull ftello getaddrinfo localtime_r gmtime_r memmem strtok_r inet_pton inet_ntop mallinfo malloc_good_size malloc_usable_size)
  158. if test "$enable_threads" = "yes"; then
  159. AC_CHECK_HEADERS(pthread.h)
  160. AC_CHECK_FUNCS(pthread_create)
  161. fi
  162. dnl ------------------------------------------------------
  163. dnl Where do you live, libevent? And how do we call you?
  164. if test "$bwin32" = true; then
  165. TOR_LIB_WS32=-lws2_32
  166. # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  167. # think it's actually necessary.
  168. TOR_LIB_GDI=-lgdi32
  169. else
  170. TOR_LIB_WS32=
  171. TOR_LIB_GDI=
  172. fi
  173. AC_SUBST(TOR_LIB_WS32)
  174. AC_SUBST(TOR_LIB_GDI)
  175. dnl We need to do this before we try our disgusting hack below.
  176. AC_CHECK_HEADERS([sys/types.h])
  177. dnl This is a disgusting hack so we safely include older libevent headers.
  178. AC_CHECK_TYPE(u_int64_t, unsigned long long)
  179. AC_CHECK_TYPE(u_int32_t, unsigned long)
  180. AC_CHECK_TYPE(u_int16_t, unsigned short)
  181. AC_CHECK_TYPE(u_int8_t, unsigned char)
  182. tor_libevent_pkg_redhat="libevent"
  183. tor_libevent_pkg_debian="libevent-dev"
  184. tor_libevent_devpkg_redhat="libevent-devel"
  185. tor_libevent_devpkg_debian="libevent-dev"
  186. TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $TOR_LIB_WS32], [
  187. #include <stdlib.h>
  188. #include <sys/time.h>
  189. #include <sys/types.h>
  190. #include <event.h>], [void exit(int); void *event_init(void);],
  191. [event_init(); exit(0);], [--with-libevent-dir], [/opt/libevent])
  192. dnl Now check for particular libevent functions.
  193. save_LIBS="$LIBS"
  194. save_LDFLAGS="$LDFLAGS"
  195. save_CPPFLAGS="$CPPFLAGS"
  196. LIBS="-levent $TOR_LIB_WS32 $LIBS"
  197. LDFLAGS="$TOR_LDFLAGS_libevent $LIBS"
  198. CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
  199. AC_CHECK_FUNCS(event_get_version event_get_method event_set_log_callback)
  200. LIBS="$save_LIBS"
  201. LDFLAGS="$save_LDFLAGS"
  202. CPPFLAGS="$save_CPPFLAGS"
  203. dnl ------------------------------------------------------
  204. dnl Where do you live, openssl? And how do we call you?
  205. tor_openssl_pkg_redhat="openssl"
  206. tor_openssl_pkg_debian="libssl"
  207. tor_openssl_devpkg_redhat="openssl-devel"
  208. tor_openssl_devpkg_debian="libssl-dev"
  209. TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
  210. [#include <openssl/rand.h>],
  211. [void RAND_add(const void *buf, int num, double entropy);],
  212. [RAND_add((void*)0,0,0); exit(0);], [--with-ssl-dir],
  213. [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
  214. dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
  215. dnl ------------------------------------------------------
  216. dnl Where do you live, zlib? And how do we call you?
  217. tor_openssl_pkg_redhat="zlib"
  218. tor_openssl_pkg_debian="zlib1g"
  219. tor_openssl_devpkg_redhat="zlib-devel"
  220. tor_openssl_devpkg_debian="zlib1g-dev"
  221. TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
  222. [#include <zlib.h>],
  223. [const char * zlibVersion(void);],
  224. [zlibVersion(); exit(0);], [--with-zlib-dir],
  225. [/opt/zlib])
  226. dnl Make sure to enable support for large off_t if available.
  227. AC_SYS_LARGEFILE
  228. AC_CHECK_HEADERS(unistd.h string.h signal.h ctype.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.))
  229. AC_CHECK_HEADERS(netdb.h sys/ioctl.h sys/socket.h arpa/inet.h netinet/in.h pwd.h grp.h sys/un.h)
  230. dnl These headers are not essential
  231. 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 netintet/in.h netinet/in6.h malloc.h sys/syslimits.h malloc/malloc.h)
  232. TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
  233. [#ifdef HAVE_MALLOC_H
  234. #include <malloc.h>
  235. #endif
  236. #ifdef HAVE_MALLOC_MALLOC_H
  237. #include <malloc/malloc.h>
  238. #endif])
  239. AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
  240. [#ifdef HAVE_SYS_TYPES_H
  241. #include <sys/types.h>
  242. #endif
  243. #ifdef HAVE_SYS_SOCKET_H
  244. #include <sys/socket.h>
  245. #endif])
  246. AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
  247. [#ifdef HAVE_SYS_TYPES_H
  248. #include <sys/types.h>
  249. #endif
  250. #ifdef HAVE_SYS_SOCKET_H
  251. #include <sys/socket.h>
  252. #endif
  253. #ifdef HAVE_NET_IF_H
  254. #include <net/if.h>
  255. #endif])
  256. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  257. linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
  258. [#ifdef HAVE_SYS_TYPES_H
  259. #include <sys/types.h>
  260. #endif
  261. #ifdef HAVE_SYS_SOCKET_H
  262. #include <sys/socket.h>
  263. #endif])
  264. if test x$transparent = xtrue ; then
  265. transparent_ok=0
  266. if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
  267. transparent_ok=1
  268. fi
  269. if test x$linux_netfilter_ipv4 = x1 ; then
  270. transparent_ok=1
  271. fi
  272. if test x$transparent_ok = x1 ; then
  273. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  274. case $host in
  275. *-*-openbsd*)
  276. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  277. esac
  278. else
  279. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  280. fi
  281. fi
  282. AC_FUNC_FSEEKO
  283. AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
  284. [#ifdef HAVE_SYS_TYPES_H
  285. #include <sys/types.h>
  286. #endif
  287. #ifdef HAVE_SYS_TIME_H
  288. #include <sys/time.h>
  289. #endif])
  290. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  291. dnl Watch out.
  292. AC_CHECK_SIZEOF(int8_t)
  293. AC_CHECK_SIZEOF(int16_t)
  294. AC_CHECK_SIZEOF(int32_t)
  295. AC_CHECK_SIZEOF(int64_t)
  296. AC_CHECK_SIZEOF(uint8_t)
  297. AC_CHECK_SIZEOF(uint16_t)
  298. AC_CHECK_SIZEOF(uint32_t)
  299. AC_CHECK_SIZEOF(uint64_t)
  300. AC_CHECK_SIZEOF(intptr_t)
  301. AC_CHECK_SIZEOF(uintptr_t)
  302. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  303. AC_CHECK_SIZEOF(char)
  304. AC_CHECK_SIZEOF(short)
  305. AC_CHECK_SIZEOF(int)
  306. AC_CHECK_SIZEOF(long)
  307. AC_CHECK_SIZEOF(long long)
  308. AC_CHECK_SIZEOF(__int64)
  309. AC_CHECK_SIZEOF(void *)
  310. AC_CHECK_SIZEOF(time_t)
  311. AC_CHECK_SIZEOF(size_t)
  312. AC_CHECK_TYPES([uint, u_char, ssize_t])
  313. AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, struct sockaddr_storage, sa_family_t], , ,
  314. [#ifdef HAVE_SYS_TYPES_H
  315. #include <sys/types.h>
  316. #endif
  317. #ifdef HAVE_NETINET_IN_H
  318. #include <netinet/in.h>
  319. #endif
  320. #ifdef HAVE_NETINET_IN6_H
  321. #include <netinet/in6.h>
  322. #endif
  323. #ifdef HAVE_SYS_SOCKET_H
  324. #include <sys/socket.h>
  325. #endif
  326. #ifdef MS_WINDOWS
  327. #define WIN32_WINNT 0x400
  328. #define _WIN32_WINNT 0x400
  329. #define WIN32_LEAN_AND_MEAN
  330. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  331. #include <winsock.h>
  332. #else
  333. #include <winsock2.h>
  334. #include <ws2tcpip.h>
  335. #endif
  336. #endif
  337. ])
  338. AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16], , ,
  339. [#ifdef HAVE_SYS_TYPES_H
  340. #include <sys/types.h>
  341. #endif
  342. #ifdef HAVE_NETINET_IN_H
  343. #include <netinet/in.h>
  344. #endif
  345. #ifdef HAVE_NETINET_IN6_H
  346. #include <netinet/in6.h>
  347. #endif
  348. #ifdef HAVE_SYS_SOCKET_H
  349. #include <sys/socket.h>
  350. #endif
  351. #ifdef MS_WINDOWS
  352. #define WIN32_WINNT 0x400
  353. #define _WIN32_WINNT 0x400
  354. #define WIN32_LEAN_AND_MEAN
  355. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  356. #include <winsock.h>
  357. #else
  358. #include <winsock2.h>
  359. #include <ws2tcpip.h>
  360. #endif
  361. #endif
  362. ])
  363. AC_CHECK_TYPES([rlim_t], , ,
  364. [#ifdef HAVE_SYS_TYPES_H
  365. #include <sys/types.h>
  366. #endif
  367. #ifdef HAVE_SYS_TIME_H
  368. #include <sys/time.h>
  369. #endif
  370. #ifdef HAVE_SYS_RESOURCE_H
  371. #include <sys/resource.h>
  372. #endif
  373. ])
  374. AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
  375. AC_RUN_IFELSE(AC_LANG_SOURCE([
  376. #ifdef HAVE_SYS_TYPES_H
  377. #include <sys/types.h>
  378. #endif
  379. #ifdef HAVE_SYS_TIME_H
  380. #include <sys/time.h>
  381. #endif
  382. #ifdef HAVE_TIME_H
  383. #include <time.h>
  384. #endif
  385. int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }]),
  386. tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes, tor_cv_time_t_signed=cross)
  387. ])
  388. if test "$tor_cv_time_t_signed" = cross; then
  389. AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  390. fi
  391. if test "$tor_cv_time_t_signed" != no; then
  392. AC_DEFINE([TIME_T_IS_SIGNED], 1,
  393. [Define to 1 iff time_t is signed])
  394. fi
  395. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  396. #ifdef HAVE_SYS_SOCKET_H
  397. #include <sys/socket.h>
  398. #endif
  399. ])
  400. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  401. AC_CHECK_SIZEOF(cell_t)
  402. # Now make sure that NULL can be represented as zero bytes.
  403. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  404. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  405. [[#include <stdlib.h>
  406. #include <string.h>
  407. #include <stdio.h>
  408. #ifdef HAVE_STDDEF_H
  409. #include <stddef.h>
  410. #endif
  411. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  412. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  413. [tor_cv_null_is_zero=yes],
  414. [tor_cv_null_is_zero=no],
  415. [tor_cv_null_is_zero=cross])])
  416. if test "$tor_cv_null_is_zero" = cross ; then
  417. # Cross-compiling; let's hope that the target isn't raving mad.
  418. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  419. fi
  420. if test "$tor_cv_null_is_zero" != no; then
  421. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  422. [Define to 1 iff memset(0) sets pointers to NULL])
  423. fi
  424. # And what happens when we malloc zero?
  425. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  426. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  427. [[#include <stdlib.h>
  428. #include <string.h>
  429. #include <stdio.h>
  430. #ifdef HAVE_STDDEF_H
  431. #include <stddef.h>
  432. #endif
  433. int main () { return malloc(0)?0:1; }]])],
  434. [tor_cv_malloc_zero_works=yes],
  435. [tor_cv_malloc_zero_works=no],
  436. [tor_cv_malloc_zero_works=cross])])
  437. if test "$tor_cv_malloc_zero_works" = cross; then
  438. # Cross-compiling; let's hope that the target isn't raving mad.
  439. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  440. fi
  441. if test "$tor_cv_malloc_zero_works" = yes; then
  442. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  443. [Define to 1 iff malloc(0) returns a pointer])
  444. fi
  445. # whether we seem to be in a 2s-complement world.
  446. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  447. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  448. [[int main () { int problem = ((-99) != (~99)+1);
  449. return problem ? 1 : 0; }]])],
  450. [tor_cv_twos_complement=yes],
  451. [tor_cv_twos_complement=no],
  452. [tor_cv_twos_complement=cross])])
  453. if test "$tor_cv_twos_complement" = cross ; then
  454. # Cross-compiling; let's hope that the target isn't raving mad.
  455. AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
  456. fi
  457. if test "$tor_cv_twos_complement" != no ; then
  458. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  459. [Define to 1 iff we represent negative integers with two's complement])
  460. fi
  461. # Whether we should use the dmalloc memory allocation debugging library.
  462. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  463. AC_ARG_WITH(dmalloc,
  464. [ --with-dmalloc Use debug memory allocation library. ],
  465. [if [[ "$withval" = "yes" ]]; then
  466. dmalloc=1
  467. AC_MSG_RESULT(yes)
  468. else
  469. dmalloc=1
  470. AC_MSG_RESULT(no)
  471. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  472. )
  473. if [[ $dmalloc -eq 1 ]]; then
  474. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  475. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  476. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  477. AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
  478. AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
  479. fi
  480. AC_ARG_WITH(tcmalloc,
  481. [ --with-tcmalloc Use tcmalloc memory allocation library. ],
  482. [ tcmalloc=yes ], [ tcmalloc=no ])
  483. if test x$tcmalloc = xyes ; then
  484. LDFLAGS="-ltcmalloc $LDFLAGS"
  485. fi
  486. # Allow user to specify an alternate syslog facility
  487. AC_ARG_WITH(syslog-facility,
  488. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  489. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  490. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  491. AC_SUBST(LOGFACILITY)
  492. # Check for gethostbyname_r in all its glorious incompatible versions.
  493. # (This logic is based on that in Python's configure.in)
  494. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  495. [Define this if you have any gethostbyname_r()])
  496. AC_CHECK_FUNC(gethostbyname_r, [
  497. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  498. OLD_CFLAGS=$CFLAGS
  499. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  500. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([
  501. #include <netdb.h>
  502. ], [[
  503. char *cp1, *cp2;
  504. struct hostent *h1, *h2;
  505. int i1, i2;
  506. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  507. ]]),[
  508. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  509. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  510. [Define this if gethostbyname_r takes 6 arguments])
  511. AC_MSG_RESULT(6)
  512. ], [
  513. AC_TRY_COMPILE([
  514. #include <netdb.h>
  515. ], [
  516. char *cp1, *cp2;
  517. struct hostent *h1;
  518. int i1, i2;
  519. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  520. ], [
  521. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  522. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  523. [Define this if gethostbyname_r takes 5 arguments])
  524. AC_MSG_RESULT(5)
  525. ], [
  526. AC_TRY_COMPILE([
  527. #include <netdb.h>
  528. ], [
  529. char *cp1;
  530. struct hostent *h1;
  531. struct hostent_data hd;
  532. (void) gethostbyname_r(cp1,h1,&hd);
  533. ], [
  534. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  535. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  536. [Define this if gethostbyname_r takes 3 arguments])
  537. AC_MSG_RESULT(3)
  538. ], [
  539. AC_MSG_RESULT(0)
  540. ])
  541. ])
  542. ])
  543. CFLAGS=$OLD_CFLAGS
  544. ])
  545. AC_CACHE_CHECK([whether the C compiler supports __func__],
  546. tor_cv_have_func_macro,
  547. AC_COMPILE_IFELSE([
  548. #include <stdio.h>
  549. int main(int c, char **v) { puts(__func__); }],
  550. tor_cv_have_func_macro=yes,
  551. tor_cv_have_func_macro=no))
  552. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  553. tor_cv_have_FUNC_macro,
  554. AC_COMPILE_IFELSE([
  555. #include <stdio.h>
  556. int main(int c, char **v) { puts(__FUNC__); }],
  557. tor_cv_have_FUNC_macro=yes,
  558. tor_cv_have_FUNC_macro=no))
  559. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  560. tor_cv_have_FUNCTION_macro,
  561. AC_COMPILE_IFELSE([
  562. #include <stdio.h>
  563. int main(int c, char **v) { puts(__FUNCTION__); }],
  564. tor_cv_have_FUNCTION_macro=yes,
  565. tor_cv_have_FUNCTION_macro=no))
  566. if test "$tor_cv_have_func_macro" = 'yes'; then
  567. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  568. fi
  569. if test "$tor_cv_have_FUNC_macro" = 'yes'; then
  570. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  571. fi
  572. if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
  573. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  574. [Defined if the compiler supports __FUNCTION__])
  575. fi
  576. # $prefix stores the value of the --prefix command line option, or
  577. # NONE if the option wasn't set. In the case that it wasn't set, make
  578. # it be the default, so that we can use it to expand directories now.
  579. if test "x$prefix" = "xNONE"; then
  580. prefix=$ac_default_prefix
  581. fi
  582. # and similarly for $exec_prefix
  583. if test "x$exec_prefix" = "xNONE"; then
  584. exec_prefix=$prefix
  585. fi
  586. if test "x$CONFDIR" = "x"; then
  587. CONFDIR=`eval echo $sysconfdir/tor`
  588. fi
  589. AC_SUBST(CONFDIR)
  590. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  591. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  592. BINDIR=`eval echo $bindir`
  593. AC_SUBST(BINDIR)
  594. LOCALSTATEDIR=`eval echo $localstatedir`
  595. AC_SUBST(LOCALSTATEDIR)
  596. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  597. # than autoconf's macros like.
  598. if test "$ac_cv_c_compiler_gnu" = yes; then
  599. CFLAGS="$CFLAGS -Wall -g -O2"
  600. else
  601. CFLAGS="$CFLAGS -g -O"
  602. enable_gcc_warnings=no
  603. fi
  604. # Add some more warnings which we use in development but not in the
  605. # released versions. (Some relevant gcc versions can't handle these.)
  606. if test x$enable_gcc_warnings = xyes; then
  607. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  608. #if !defined(__GNUC__) || (__GNUC__ < 4)
  609. #error
  610. #endif]), have_gcc4=yes, have_gcc4=no)
  611. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  612. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  613. #error
  614. #endif]), have_gcc42=yes, have_gcc42=no)
  615. save_CFLAGS="$CFLAGS"
  616. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  617. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], []), have_shorten64_flag=yes,
  618. have_shorten64_flag=no)
  619. CFLAGS="$save_CFLAGS"
  620. CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Wwrite-strings -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wbad-function-cast -Wswitch-enum -Werror"
  621. # Disabled, so we can use mallinfo(): -Waggregate-return
  622. if test x$have_gcc4 = xyes ; then
  623. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  624. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  625. fi
  626. if test x$have_gcc42 = xyes ; then
  627. # These warnings break gcc 4.0.2 and work on gcc 4.2
  628. # XXXX020 Use -fstack-protector.
  629. # XXXX020 See if any of these work with earlier versions.
  630. CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wnormalized=id -Woverride-init -Wstrict-overflow=5"
  631. fi
  632. if test x$have_shorten64_flag = xyes ; then
  633. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  634. fi
  635. ##This will break the world on some 64-bit architectures
  636. # CFLAGS="$CFLAGS -Winline"
  637. fi
  638. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
  639. 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])
  640. AC_OUTPUT
  641. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  642. ./contrib/updateVersions.pl
  643. fi