configure.in 24 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, 0.2.1.9-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_PROG_CC
  83. AC_PROG_CPP
  84. AC_PROG_MAKE_SET
  85. AC_PROG_RANLIB
  86. TORUSER=_tor
  87. AC_ARG_WITH(tor-user,
  88. [ --with-tor-user=NAME Specify username for tor daemon ],
  89. [
  90. TORUSER=$withval
  91. ]
  92. )
  93. AC_SUBST(TORUSER)
  94. TORGROUP=_tor
  95. AC_ARG_WITH(tor-group,
  96. [ --with-tor-group=NAME Specify group name for tor daemon ],
  97. [
  98. TORGROUP=$withval
  99. ]
  100. )
  101. AC_SUBST(TORGROUP)
  102. dnl If WIN32 is defined and non-zero, we are building for win32
  103. AC_MSG_CHECKING([for win32])
  104. AC_RUN_IFELSE([
  105. int main(int c, char **v) {
  106. #ifdef WIN32
  107. #if WIN32
  108. return 0;
  109. #else
  110. return 1;
  111. #endif
  112. #else
  113. return 2;
  114. #endif
  115. }],
  116. bwin32=true; AC_MSG_RESULT([yes]),
  117. bwin32=false; AC_MSG_RESULT([no]),
  118. bwin32=cross; AC_MSG_RESULT([cross])
  119. )
  120. if test "$bwin32" = cross; then
  121. AC_MSG_CHECKING([for win32 (cross)])
  122. AC_COMPILE_IFELSE([
  123. #ifdef WIN32
  124. int main(int c, char **v) {return 0;}
  125. #else
  126. #error
  127. int main(int c, char **v) {return x(y);}
  128. #endif
  129. ],
  130. bwin32=true; AC_MSG_RESULT([yes]),
  131. bwin32=false; AC_MSG_RESULT([no]))
  132. fi
  133. if test "$bwin32" = true; then
  134. AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
  135. fi
  136. AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
  137. dnl Enable C99 when compiling with MIPSpro
  138. AC_MSG_CHECKING([for MIPSpro compiler])
  139. AC_COMPILE_IFELSE(AC_LANG_PROGRAM(, [
  140. #if (defined(__sgi) && defined(_COMPILER_VERSION))
  141. #error
  142. return x(y);
  143. #endif
  144. ]),
  145. bmipspro=false; AC_MSG_RESULT(no),
  146. bmipspro=true; AC_MSG_RESULT(yes))
  147. if test "$bmipspro" = true; then
  148. CFLAGS="$CFLAGS -c99"
  149. fi
  150. AC_C_BIGENDIAN
  151. AC_SEARCH_LIBS(socket, [socket])
  152. AC_SEARCH_LIBS(gethostbyname, [nsl])
  153. AC_SEARCH_LIBS(dlopen, [dl])
  154. AC_SEARCH_LIBS(inet_aton, [resolv])
  155. if test "$enable_threads" = "yes"; then
  156. AC_SEARCH_LIBS(pthread_create, [pthread])
  157. AC_SEARCH_LIBS(pthread_detach, [pthread])
  158. fi
  159. dnl -------------------------------------------------------------------
  160. dnl Check for functions before libevent, since libevent-1.2 apparently
  161. dnl exports strlcpy without defining it in a header.
  162. AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit strlcat strlcpy strtoull getaddrinfo localtime_r gmtime_r memmem strtok_r writev readv flock)
  163. using_custom_malloc=no
  164. if test x$enable_openbsd_malloc = xyes ; then
  165. AC_DEFINE(HAVE_MALLOC_GOOD_SIZE, 1, [Defined if we have the malloc_good_size function])
  166. using_custom_malloc=yes
  167. fi
  168. if test x$tcmalloc = xyes ; then
  169. using_custom_malloc=yes
  170. fi
  171. if test $using_custom_malloc = no ; then
  172. AC_CHECK_FUNCS(mallinfo malloc_good_size malloc_usable_size)
  173. fi
  174. if test "$enable_threads" = "yes"; then
  175. AC_CHECK_HEADERS(pthread.h)
  176. AC_CHECK_FUNCS(pthread_create)
  177. fi
  178. dnl ------------------------------------------------------
  179. dnl Where do you live, libevent? And how do we call you?
  180. if test "$bwin32" = true; then
  181. TOR_LIB_WS32=-lws2_32
  182. # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  183. # think it's actually necessary.
  184. TOR_LIB_GDI=-lgdi32
  185. else
  186. TOR_LIB_WS32=
  187. TOR_LIB_GDI=
  188. fi
  189. AC_SUBST(TOR_LIB_WS32)
  190. AC_SUBST(TOR_LIB_GDI)
  191. dnl We need to do this before we try our disgusting hack below.
  192. AC_CHECK_HEADERS([sys/types.h])
  193. dnl This is a disgusting hack so we safely include older libevent headers.
  194. AC_CHECK_TYPE(u_int64_t, unsigned long long)
  195. AC_CHECK_TYPE(u_int32_t, unsigned long)
  196. AC_CHECK_TYPE(u_int16_t, unsigned short)
  197. AC_CHECK_TYPE(u_int8_t, unsigned char)
  198. tor_libevent_pkg_redhat="libevent"
  199. tor_libevent_pkg_debian="libevent-dev"
  200. tor_libevent_devpkg_redhat="libevent-devel"
  201. tor_libevent_devpkg_debian="libevent-dev"
  202. TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $TOR_LIB_WS32], [
  203. #ifdef WIN32
  204. #include <winsock2.h>
  205. #endif
  206. #include <stdlib.h>
  207. #include <sys/time.h>
  208. #include <sys/types.h>
  209. #include <event.h>], [
  210. #ifdef WIN32
  211. #include <winsock2.h>
  212. #endif
  213. void exit(int); void *event_init(void);],
  214. [
  215. #ifdef WIN32
  216. {WSADATA d; WSAStartup(0x101,&d); }
  217. #endif
  218. event_init(); exit(0);
  219. ], [--with-libevent-dir], [/opt/libevent])
  220. dnl Now check for particular libevent functions.
  221. save_LIBS="$LIBS"
  222. save_LDFLAGS="$LDFLAGS"
  223. save_CPPFLAGS="$CPPFLAGS"
  224. LIBS="-levent $TOR_LIB_WS32 $LIBS"
  225. LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
  226. CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
  227. AC_CHECK_FUNCS(event_get_version event_get_method event_set_log_callback)
  228. LIBS="$save_LIBS"
  229. LDFLAGS="$save_LDFLAGS"
  230. CPPFLAGS="$save_CPPFLAGS"
  231. dnl ------------------------------------------------------
  232. dnl Where do you live, openssl? And how do we call you?
  233. tor_openssl_pkg_redhat="openssl"
  234. tor_openssl_pkg_debian="libssl"
  235. tor_openssl_devpkg_redhat="openssl-devel"
  236. tor_openssl_devpkg_debian="libssl-dev"
  237. ALT_openssl_WITHVAL=""
  238. AC_ARG_WITH(ssl-dir,
  239. [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
  240. [
  241. if test "x$withval" != xno && test "x$withval" != "x" ; then
  242. ALT_openssl_WITHVAL="$withval"
  243. fi
  244. ])
  245. TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
  246. [#include <openssl/rand.h>],
  247. [void RAND_add(const void *buf, int num, double entropy);],
  248. [RAND_add((void*)0,0,0); exit(0);], [],
  249. [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
  250. dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
  251. dnl ------------------------------------------------------
  252. dnl Where do you live, zlib? And how do we call you?
  253. tor_openssl_pkg_redhat="zlib"
  254. tor_openssl_pkg_debian="zlib1g"
  255. tor_openssl_devpkg_redhat="zlib-devel"
  256. tor_openssl_devpkg_debian="zlib1g-dev"
  257. TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
  258. [#include <zlib.h>],
  259. [const char * zlibVersion(void);],
  260. [zlibVersion(); exit(0);], [--with-zlib-dir],
  261. [/opt/zlib])
  262. dnl Make sure to enable support for large off_t if available.
  263. AC_SYS_LARGEFILE
  264. 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.))
  265. 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)
  266. dnl These headers are not essential
  267. 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)
  268. TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
  269. [#ifdef HAVE_MALLOC_H
  270. #include <malloc.h>
  271. #endif
  272. #ifdef HAVE_MALLOC_MALLOC_H
  273. #include <malloc/malloc.h>
  274. #endif])
  275. AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
  276. [#ifdef HAVE_SYS_TYPES_H
  277. #include <sys/types.h>
  278. #endif
  279. #ifdef HAVE_SYS_SOCKET_H
  280. #include <sys/socket.h>
  281. #endif])
  282. AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
  283. [#ifdef HAVE_SYS_TYPES_H
  284. #include <sys/types.h>
  285. #endif
  286. #ifdef HAVE_SYS_SOCKET_H
  287. #include <sys/socket.h>
  288. #endif
  289. #ifdef HAVE_NET_IF_H
  290. #include <net/if.h>
  291. #endif])
  292. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  293. linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
  294. [#ifdef HAVE_SYS_TYPES_H
  295. #include <sys/types.h>
  296. #endif
  297. #ifdef HAVE_SYS_SOCKET_H
  298. #include <sys/socket.h>
  299. #endif
  300. #ifdef HAVE_LIMITS_H
  301. #include <limits.h>
  302. #endif
  303. #ifdef HAVE_LINUX_TYPES_H
  304. #include <linux/types.h>
  305. #endif
  306. #ifdef HAVE_NETINET_IN6_H
  307. #include <netinet/in6.h>
  308. #endif
  309. #ifdef HAVE_NETINET_IN_H
  310. #include <netinet/in.h>
  311. #endif])
  312. if test x$transparent = xtrue ; then
  313. transparent_ok=0
  314. if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
  315. transparent_ok=1
  316. fi
  317. if test x$linux_netfilter_ipv4 = x1 ; then
  318. transparent_ok=1
  319. fi
  320. if test x$transparent_ok = x1 ; then
  321. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  322. case $host in
  323. *-*-openbsd*)
  324. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  325. esac
  326. else
  327. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  328. fi
  329. fi
  330. AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
  331. [#ifdef HAVE_SYS_TYPES_H
  332. #include <sys/types.h>
  333. #endif
  334. #ifdef HAVE_SYS_TIME_H
  335. #include <sys/time.h>
  336. #endif])
  337. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  338. dnl Watch out.
  339. AC_CHECK_SIZEOF(int8_t)
  340. AC_CHECK_SIZEOF(int16_t)
  341. AC_CHECK_SIZEOF(int32_t)
  342. AC_CHECK_SIZEOF(int64_t)
  343. AC_CHECK_SIZEOF(uint8_t)
  344. AC_CHECK_SIZEOF(uint16_t)
  345. AC_CHECK_SIZEOF(uint32_t)
  346. AC_CHECK_SIZEOF(uint64_t)
  347. AC_CHECK_SIZEOF(intptr_t)
  348. AC_CHECK_SIZEOF(uintptr_t)
  349. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  350. AC_CHECK_SIZEOF(char)
  351. AC_CHECK_SIZEOF(short)
  352. AC_CHECK_SIZEOF(int)
  353. AC_CHECK_SIZEOF(long)
  354. AC_CHECK_SIZEOF(long long)
  355. AC_CHECK_SIZEOF(__int64)
  356. AC_CHECK_SIZEOF(void *)
  357. AC_CHECK_SIZEOF(time_t)
  358. AC_CHECK_SIZEOF(size_t)
  359. AC_CHECK_TYPES([uint, u_char, ssize_t])
  360. dnl used to include sockaddr_storage, but everybody has that.
  361. AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
  362. [#ifdef HAVE_SYS_TYPES_H
  363. #include <sys/types.h>
  364. #endif
  365. #ifdef HAVE_NETINET_IN_H
  366. #include <netinet/in.h>
  367. #endif
  368. #ifdef HAVE_NETINET_IN6_H
  369. #include <netinet/in6.h>
  370. #endif
  371. #ifdef HAVE_SYS_SOCKET_H
  372. #include <sys/socket.h>
  373. #endif
  374. #ifdef MS_WINDOWS
  375. #define WIN32_WINNT 0x400
  376. #define _WIN32_WINNT 0x400
  377. #define WIN32_LEAN_AND_MEAN
  378. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  379. #include <winsock.h>
  380. #else
  381. #include <winsock2.h>
  382. #include <ws2tcpip.h>
  383. #endif
  384. #endif
  385. ])
  386. AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16], , ,
  387. [#ifdef HAVE_SYS_TYPES_H
  388. #include <sys/types.h>
  389. #endif
  390. #ifdef HAVE_NETINET_IN_H
  391. #include <netinet/in.h>
  392. #endif
  393. #ifdef HAVE_NETINET_IN6_H
  394. #include <netinet/in6.h>
  395. #endif
  396. #ifdef HAVE_SYS_SOCKET_H
  397. #include <sys/socket.h>
  398. #endif
  399. #ifdef MS_WINDOWS
  400. #define WIN32_WINNT 0x400
  401. #define _WIN32_WINNT 0x400
  402. #define WIN32_LEAN_AND_MEAN
  403. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  404. #include <winsock.h>
  405. #else
  406. #include <winsock2.h>
  407. #include <ws2tcpip.h>
  408. #endif
  409. #endif
  410. ])
  411. AC_CHECK_TYPES([rlim_t], , ,
  412. [#ifdef HAVE_SYS_TYPES_H
  413. #include <sys/types.h>
  414. #endif
  415. #ifdef HAVE_SYS_TIME_H
  416. #include <sys/time.h>
  417. #endif
  418. #ifdef HAVE_SYS_RESOURCE_H
  419. #include <sys/resource.h>
  420. #endif
  421. ])
  422. AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
  423. AC_RUN_IFELSE(AC_LANG_SOURCE([
  424. #ifdef HAVE_SYS_TYPES_H
  425. #include <sys/types.h>
  426. #endif
  427. #ifdef HAVE_SYS_TIME_H
  428. #include <sys/time.h>
  429. #endif
  430. #ifdef HAVE_TIME_H
  431. #include <time.h>
  432. #endif
  433. int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }]),
  434. tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes, tor_cv_time_t_signed=cross)
  435. ])
  436. if test "$tor_cv_time_t_signed" = cross; then
  437. AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  438. fi
  439. if test "$tor_cv_time_t_signed" != no; then
  440. AC_DEFINE([TIME_T_IS_SIGNED], 1,
  441. [Define to 1 iff time_t is signed])
  442. fi
  443. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  444. #ifdef HAVE_SYS_SOCKET_H
  445. #include <sys/socket.h>
  446. #endif
  447. ])
  448. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  449. AC_CHECK_SIZEOF(cell_t)
  450. # Now make sure that NULL can be represented as zero bytes.
  451. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  452. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  453. [[#include <stdlib.h>
  454. #include <string.h>
  455. #include <stdio.h>
  456. #ifdef HAVE_STDDEF_H
  457. #include <stddef.h>
  458. #endif
  459. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  460. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  461. [tor_cv_null_is_zero=yes],
  462. [tor_cv_null_is_zero=no],
  463. [tor_cv_null_is_zero=cross])])
  464. if test "$tor_cv_null_is_zero" = cross ; then
  465. # Cross-compiling; let's hope that the target isn't raving mad.
  466. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  467. fi
  468. if test "$tor_cv_null_is_zero" != no; then
  469. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  470. [Define to 1 iff memset(0) sets pointers to NULL])
  471. fi
  472. # And what happens when we malloc zero?
  473. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  474. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  475. [[#include <stdlib.h>
  476. #include <string.h>
  477. #include <stdio.h>
  478. #ifdef HAVE_STDDEF_H
  479. #include <stddef.h>
  480. #endif
  481. int main () { return malloc(0)?0:1; }]])],
  482. [tor_cv_malloc_zero_works=yes],
  483. [tor_cv_malloc_zero_works=no],
  484. [tor_cv_malloc_zero_works=cross])])
  485. if test "$tor_cv_malloc_zero_works" = cross; then
  486. # Cross-compiling; let's hope that the target isn't raving mad.
  487. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  488. fi
  489. if test "$tor_cv_malloc_zero_works" = yes; then
  490. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  491. [Define to 1 iff malloc(0) returns a pointer])
  492. fi
  493. # whether we seem to be in a 2s-complement world.
  494. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  495. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  496. [[int main () { int problem = ((-99) != (~99)+1);
  497. return problem ? 1 : 0; }]])],
  498. [tor_cv_twos_complement=yes],
  499. [tor_cv_twos_complement=no],
  500. [tor_cv_twos_complement=cross])])
  501. if test "$tor_cv_twos_complement" = cross ; then
  502. # Cross-compiling; let's hope that the target isn't raving mad.
  503. AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
  504. fi
  505. if test "$tor_cv_twos_complement" != no ; then
  506. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  507. [Define to 1 iff we represent negative integers with two's complement])
  508. fi
  509. # Whether we should use the dmalloc memory allocation debugging library.
  510. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  511. AC_ARG_WITH(dmalloc,
  512. [ --with-dmalloc Use debug memory allocation library. ],
  513. [if [[ "$withval" = "yes" ]]; then
  514. dmalloc=1
  515. AC_MSG_RESULT(yes)
  516. else
  517. dmalloc=1
  518. AC_MSG_RESULT(no)
  519. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  520. )
  521. if [[ $dmalloc -eq 1 ]]; then
  522. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  523. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  524. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  525. AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
  526. AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
  527. fi
  528. AC_ARG_WITH(tcmalloc,
  529. [ --with-tcmalloc Use tcmalloc memory allocation library. ],
  530. [ tcmalloc=yes ], [ tcmalloc=no ])
  531. if test x$tcmalloc = xyes ; then
  532. LDFLAGS="-ltcmalloc $LDFLAGS"
  533. fi
  534. # Allow user to specify an alternate syslog facility
  535. AC_ARG_WITH(syslog-facility,
  536. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  537. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  538. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  539. AC_SUBST(LOGFACILITY)
  540. # Check if we have getresuid and getresgid
  541. AC_CHECK_FUNCS(getresuid getresgid)
  542. # Check for gethostbyname_r in all its glorious incompatible versions.
  543. # (This logic is based on that in Python's configure.in)
  544. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  545. [Define this if you have any gethostbyname_r()])
  546. AC_CHECK_FUNC(gethostbyname_r, [
  547. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  548. OLD_CFLAGS=$CFLAGS
  549. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  550. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([
  551. #include <netdb.h>
  552. ], [[
  553. char *cp1, *cp2;
  554. struct hostent *h1, *h2;
  555. int i1, i2;
  556. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  557. ]]),[
  558. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  559. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  560. [Define this if gethostbyname_r takes 6 arguments])
  561. AC_MSG_RESULT(6)
  562. ], [
  563. AC_TRY_COMPILE([
  564. #include <netdb.h>
  565. ], [
  566. char *cp1, *cp2;
  567. struct hostent *h1;
  568. int i1, i2;
  569. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  570. ], [
  571. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  572. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  573. [Define this if gethostbyname_r takes 5 arguments])
  574. AC_MSG_RESULT(5)
  575. ], [
  576. AC_TRY_COMPILE([
  577. #include <netdb.h>
  578. ], [
  579. char *cp1;
  580. struct hostent *h1;
  581. struct hostent_data hd;
  582. (void) gethostbyname_r(cp1,h1,&hd);
  583. ], [
  584. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  585. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  586. [Define this if gethostbyname_r takes 3 arguments])
  587. AC_MSG_RESULT(3)
  588. ], [
  589. AC_MSG_RESULT(0)
  590. ])
  591. ])
  592. ])
  593. CFLAGS=$OLD_CFLAGS
  594. ])
  595. AC_CACHE_CHECK([whether the C compiler supports __func__],
  596. tor_cv_have_func_macro,
  597. AC_COMPILE_IFELSE([
  598. #include <stdio.h>
  599. int main(int c, char **v) { puts(__func__); }],
  600. tor_cv_have_func_macro=yes,
  601. tor_cv_have_func_macro=no))
  602. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  603. tor_cv_have_FUNC_macro,
  604. AC_COMPILE_IFELSE([
  605. #include <stdio.h>
  606. int main(int c, char **v) { puts(__FUNC__); }],
  607. tor_cv_have_FUNC_macro=yes,
  608. tor_cv_have_FUNC_macro=no))
  609. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  610. tor_cv_have_FUNCTION_macro,
  611. AC_COMPILE_IFELSE([
  612. #include <stdio.h>
  613. int main(int c, char **v) { puts(__FUNCTION__); }],
  614. tor_cv_have_FUNCTION_macro=yes,
  615. tor_cv_have_FUNCTION_macro=no))
  616. if test "$tor_cv_have_func_macro" = 'yes'; then
  617. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  618. fi
  619. if test "$tor_cv_have_FUNC_macro" = 'yes'; then
  620. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  621. fi
  622. if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
  623. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  624. [Defined if the compiler supports __FUNCTION__])
  625. fi
  626. # $prefix stores the value of the --prefix command line option, or
  627. # NONE if the option wasn't set. In the case that it wasn't set, make
  628. # it be the default, so that we can use it to expand directories now.
  629. if test "x$prefix" = "xNONE"; then
  630. prefix=$ac_default_prefix
  631. fi
  632. # and similarly for $exec_prefix
  633. if test "x$exec_prefix" = "xNONE"; then
  634. exec_prefix=$prefix
  635. fi
  636. if test "x$CONFDIR" = "x"; then
  637. CONFDIR=`eval echo $sysconfdir/tor`
  638. fi
  639. AC_SUBST(CONFDIR)
  640. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  641. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  642. BINDIR=`eval echo $bindir`
  643. AC_SUBST(BINDIR)
  644. LOCALSTATEDIR=`eval echo $localstatedir`
  645. AC_SUBST(LOCALSTATEDIR)
  646. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  647. # than autoconf's macros like.
  648. if test "$ac_cv_c_compiler_gnu" = yes; then
  649. CFLAGS="$CFLAGS -Wall -g -O2"
  650. else
  651. CFLAGS="$CFLAGS -g -O"
  652. enable_gcc_warnings=no
  653. fi
  654. # Add some more warnings which we use in development but not in the
  655. # released versions. (Some relevant gcc versions can't handle these.)
  656. if test x$enable_gcc_warnings = xyes; then
  657. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  658. #if !defined(__GNUC__) || (__GNUC__ < 4)
  659. #error
  660. #endif]), have_gcc4=yes, have_gcc4=no)
  661. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  662. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  663. #error
  664. #endif]), have_gcc42=yes, have_gcc42=no)
  665. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  666. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
  667. #error
  668. #endif]), have_gcc43=yes, have_gcc43=no)
  669. save_CFLAGS="$CFLAGS"
  670. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  671. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], []), have_shorten64_flag=yes,
  672. have_shorten64_flag=no)
  673. CFLAGS="$save_CFLAGS"
  674. CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Wwrite-strings -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wbad-function-cast -Wswitch-enum -Werror"
  675. # Disabled, so we can use mallinfo(): -Waggregate-return
  676. if test x$have_gcc4 = xyes ; then
  677. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  678. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  679. fi
  680. if test x$have_gcc42 = xyes ; then
  681. # These warnings break gcc 4.0.2 and work on gcc 4.2
  682. # XXXX020 Use -fstack-protector.
  683. # XXXX020 See if any of these work with earlier versions.
  684. CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wnormalized=id -Woverride-init -Wstrict-overflow=1"
  685. # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
  686. fi
  687. if test x$have_gcc43 = xyes ; then
  688. # These warnings break gcc 4.2 and work on gcc 4.3
  689. # XXXX020 See if any of these work with earlier versions.
  690. CFLAGS="$CFLAGS -Wextra -Warray-bounds"
  691. fi
  692. if test x$have_shorten64_flag = xyes ; then
  693. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  694. fi
  695. ##This will break the world on some 64-bit architectures
  696. # CFLAGS="$CFLAGS -Winline"
  697. fi
  698. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
  699. 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])
  700. AC_OUTPUT
  701. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  702. ./contrib/updateVersions.pl
  703. fi