configure.in 20 KB

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  1. dnl $Id$
  2. dnl Copyright (c) 2001-2004, Roger Dingledine
  3. dnl Copyright (c) 2004-2007, Roger Dingledine, Nick Mathewson
  4. dnl See LICENSE for licensing information
  5. AC_INIT
  6. AM_INIT_AUTOMAKE(tor, 0.2.0.11-alpha)
  7. AM_CONFIG_HEADER(orconfig.h)
  8. AC_CANONICAL_HOST
  9. if test -f /etc/redhat-release ; then
  10. CPPFLAGS="$CPPFLAGS -I/usr/kerberos/include"
  11. fi
  12. # Not a no-op; we want to make sure that CPPFLAGS is set before we use
  13. # the += operator on it in src/or/Makefile.am
  14. CPPFLAGS="$CPPFLAGS -I../common"
  15. AC_ARG_ENABLE(debug,
  16. AS_HELP_STRING(--enable-debug, compile with debugging info),
  17. [if test x$enableval = xyes; then
  18. CFLAGS="$CFLAGS -g"
  19. fi])
  20. AC_ARG_ENABLE(cell-pool,
  21. AS_HELP_STRING(--disable-cell-pool, disable pool allocator for cells))
  22. if test x$enable_cell_pool != xno; then
  23. AC_DEFINE(ENABLE_CELL_POOL, 1,
  24. [Defined if we try to use the pool allocator for queued cells])
  25. fi
  26. AC_ARG_ENABLE(transparent,
  27. AS_HELP_STRING(--disable-transparent, disable transparent proxy support),
  28. [case "${enableval}" in
  29. yes) transparent=true ;;
  30. no) transparent=false ;;
  31. *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
  32. esac], [transparent=true])
  33. AC_ARG_ENABLE(threads,
  34. AS_HELP_STRING(--disable-threads, disable multi-threading support))
  35. if test x$enable_threads = x; then
  36. case $host in
  37. *-*-solaris* )
  38. # Don't try multithreading on solaris -- cpuworkers seem to lock.
  39. AC_MSG_NOTICE([You are running Solaris; Sometimes threading makes
  40. cpu workers lock up here, so I will disable threads.])
  41. enable_threads="no";;
  42. *)
  43. enable_threads="yes";;
  44. esac
  45. fi
  46. if test $enable_threads = "yes"; then
  47. AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
  48. fi
  49. case $host in
  50. *-*-solaris* )
  51. AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
  52. ;;
  53. esac
  54. AC_ARG_ENABLE(gcc-warnings,
  55. AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
  56. AC_PROG_CC
  57. AC_PROG_MAKE_SET
  58. AC_PROG_RANLIB
  59. TORUSER=_tor
  60. AC_ARG_WITH(tor-user,
  61. [ --with-tor-user=NAME Specify username for tor daemon ],
  62. [
  63. TORUSER=$withval
  64. ]
  65. )
  66. AC_SUBST(TORUSER)
  67. TORGROUP=_tor
  68. AC_ARG_WITH(tor-group,
  69. [ --with-tor-group=NAME Specify group name for tor daemon ],
  70. [
  71. TORGROUP=$withval
  72. ]
  73. )
  74. AC_SUBST(TORGROUP)
  75. dnl If WIN32 is defined and non-zero, we are building for win32
  76. AC_MSG_CHECKING([for win32])
  77. AC_RUN_IFELSE([
  78. int main(int c, char **v) {
  79. #ifdef WIN32
  80. #if WIN32
  81. return 0;
  82. #else
  83. return 1;
  84. #endif
  85. #else
  86. return 2;
  87. #endif
  88. }],
  89. bwin32=true; AC_MSG_RESULT([yes]),
  90. bwin32=false; AC_MSG_RESULT([no]),
  91. bwin32=cross; AC_MSG_RESULT([cross])
  92. )
  93. if test $bwin32 = cross; then
  94. AC_MSG_CHECKING([for win32 (cross)])
  95. AC_COMPILE_IFELSE([
  96. #ifdef WIN32
  97. int main(int c, char **v) {return 0;}
  98. #else
  99. #error
  100. int main(int c, char **v) {return x(y);}
  101. #endif
  102. ],
  103. bwin32=true; AC_MSG_RESULT([yes]),
  104. bwin32=false; AC_MSG_RESULT([no]))
  105. fi
  106. if test $bwin32 = true; then
  107. AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
  108. fi
  109. AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
  110. dnl Enable C99 when compiling with MIPSpro
  111. AC_MSG_CHECKING([for MIPSpro compiler])
  112. AC_COMPILE_IFELSE(AC_LANG_PROGRAM(, [
  113. #if (defined(__sgi) && defined(_COMPILER_VERSION))
  114. #error
  115. return x(y);
  116. #endif
  117. ]),
  118. bmipspro=false; AC_MSG_RESULT(no),
  119. bmipspro=true; AC_MSG_RESULT(yes))
  120. if test $bmipspro = true; then
  121. CFLAGS="$CFLAGS -c99"
  122. fi
  123. AC_C_BIGENDIAN
  124. AC_SEARCH_LIBS(socket, [socket])
  125. AC_SEARCH_LIBS(gethostbyname, [nsl])
  126. AC_SEARCH_LIBS(dlopen, [dl])
  127. AC_SEARCH_LIBS(inet_aton, [resolv])
  128. if test $enable_threads = "yes"; then
  129. AC_SEARCH_LIBS(pthread_create, [pthread])
  130. AC_SEARCH_LIBS(pthread_detach, [pthread])
  131. fi
  132. dnl -------------------------------------------------------------------
  133. dnl Check for functions before libevent, since libevent-1.2 apparently
  134. dnl exports strlcpy without defining it in a header.
  135. 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)
  136. if test $enable_threads = "yes"; then
  137. AC_CHECK_HEADERS(pthread.h)
  138. AC_CHECK_FUNCS(pthread_create)
  139. fi
  140. dnl ------------------------------------------------------
  141. dnl Where do you live, libevent? And how do we call you?
  142. if test $bwin32 = true; then
  143. TOR_LIB_WS32=-lws2_32
  144. # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  145. # think it's actually necessary.
  146. TOR_LIB_GDI=-lgdi32
  147. else
  148. TOR_LIB_WS32=
  149. TOR_LIB_GDI=
  150. fi
  151. AC_SUBST(TOR_LIB_WS32)
  152. AC_SUBST(TOR_LIB_GDI)
  153. dnl This is a disgusting hack so we safely include recent libevent headers.
  154. AC_CHECK_TYPE(u_int64_t, unsigned long long)
  155. AC_CHECK_TYPE(u_int32_t, unsigned long)
  156. AC_CHECK_TYPE(u_int16_t, unsigned short)
  157. AC_CHECK_TYPE(u_int8_t, unsigned char)
  158. tor_libevent_pkg_redhat="libevent"
  159. tor_libevent_pkg_debian="libevent-dev"
  160. tor_libevent_devpkg_redhat="libevent-devel"
  161. tor_libevent_devpkg_debian="libevent-dev"
  162. TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $TOR_LIB_WS32], [
  163. #include <stdlib.h>
  164. #include <sys/time.h>
  165. #include <sys/types.h>
  166. #include <event.h>], [void exit(int); void *event_init(void);],
  167. [event_init(); exit(0);], [--with-libevent-dir], [/opt/libevent])
  168. dnl Now check for particular libevent functions.
  169. save_LIBS="$LIBS"
  170. save_LDFLAGS="$LDFLAGS"
  171. save_CPPFLAGS="$CPPFLAGS"
  172. LIBS="-levent $TOR_LIB_WS32 $LIBS"
  173. LDFLAGS="$TOR_LDFLAGS_libevent $LIBS"
  174. CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
  175. AC_CHECK_FUNCS(event_get_version event_get_method event_set_log_callback)
  176. LIBS="$save_LIBS"
  177. LDFLAGS="$save_LDFLAGS"
  178. CPPFLAGS="$save_CPPFLAGS"
  179. dnl ------------------------------------------------------
  180. dnl Where do you live, openssl? And how do we call you?
  181. tor_openssl_pkg_redhat="openssl"
  182. tor_openssl_pkg_debian="libssl"
  183. tor_openssl_devpkg_redhat="openssl-devel"
  184. tor_openssl_devpkg_debian="libssl-dev"
  185. TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
  186. [#include <openssl/rand.h>],
  187. [void RAND_add(const void *buf, int num, double entropy);],
  188. [RAND_add((void*)0,0,0); exit(0);], [--with-ssl-dir],
  189. [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
  190. dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
  191. dnl ------------------------------------------------------
  192. dnl Where do you live, zlib? And how do we call you?
  193. tor_openssl_pkg_redhat="zlib"
  194. tor_openssl_pkg_debian="zlib1g"
  195. tor_openssl_devpkg_redhat="zlib-devel"
  196. tor_openssl_devpkg_debian="zlib1g-dev"
  197. TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
  198. [#include <zlib.h>],
  199. [const char * zlibVersion(void);],
  200. [zlibVersion(); exit(0);], [--with-zlib-dir],
  201. [/opt/zlib])
  202. dnl Make sure to enable support for large off_t if avalable.
  203. AC_SYS_LARGEFILE
  204. AC_CHECK_HEADERS(unistd.h string.h signal.h ctype.h sys/stat.h sys/types.h fcntl.h sys/fcntl.h sys/time.h errno.h assert.h time.h, , AC_MSG_WARN(Some headers were not found, compilation may fail. If compilation succeeds, please send your orconfig.h to the developers so we can fix this warning.))
  205. AC_CHECK_HEADERS(netdb.h sys/ioctl.h sys/socket.h arpa/inet.h netinet/in.h pwd.h grp.h sys/un.h)
  206. dnl These headers are not essential
  207. AC_CHECK_HEADERS(stdint.h sys/types.h inttypes.h sys/param.h sys/wait.h limits.h sys/limits.h netinet/in.h arpa/inet.h machine/limits.h syslog.h sys/time.h sys/resource.h inttypes.h utime.h sys/utime.h sys/mman.h netintet/in.h netinet/in6.h malloc.h sys/syslimits.h)
  208. AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
  209. [#ifdef HAVE_SYS_TYPES_H
  210. #include <sys/types.h>
  211. #endif
  212. #ifdef HAVE_SYS_SOCKET_H
  213. #include <sys/socket.h>
  214. #endif])
  215. AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
  216. [#ifdef HAVE_SYS_TYPES_H
  217. #include <sys/types.h>
  218. #endif
  219. #ifdef HAVE_SYS_SOCKET_H
  220. #include <sys/socket.h>
  221. #endif
  222. #ifdef HAVE_NET_IF_H
  223. #include <net/if.h>
  224. #endif])
  225. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  226. linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
  227. [#ifdef HAVE_SYS_TYPES_H
  228. #include <sys/types.h>
  229. #endif
  230. #ifdef HAVE_SYS_SOCKET_H
  231. #include <sys/socket.h>
  232. #endif])
  233. if test x$transparent = xtrue ; then
  234. transparent_ok=0
  235. if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
  236. transparent_ok=1
  237. fi
  238. if test x$linux_netfilter_ipv4 = x1 ; then
  239. transparent_ok=1
  240. fi
  241. if test x$transparent_ok = x1 ; then
  242. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  243. case $host in
  244. *-*-openbsd*)
  245. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  246. esac
  247. else
  248. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  249. fi
  250. fi
  251. AC_FUNC_FSEEKO
  252. AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
  253. [#ifdef HAVE_SYS_TYPES_H
  254. #include <sys/types.h>
  255. #endif
  256. #ifdef HAVE_SYS_TIME_H
  257. #include <sys/time.h>
  258. #endif])
  259. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  260. dnl Watch out.
  261. AC_CHECK_SIZEOF(int8_t)
  262. AC_CHECK_SIZEOF(int16_t)
  263. AC_CHECK_SIZEOF(int32_t)
  264. AC_CHECK_SIZEOF(int64_t)
  265. AC_CHECK_SIZEOF(uint8_t)
  266. AC_CHECK_SIZEOF(uint16_t)
  267. AC_CHECK_SIZEOF(uint32_t)
  268. AC_CHECK_SIZEOF(uint64_t)
  269. AC_CHECK_SIZEOF(intptr_t)
  270. AC_CHECK_SIZEOF(uintptr_t)
  271. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  272. AC_CHECK_SIZEOF(char)
  273. AC_CHECK_SIZEOF(short)
  274. AC_CHECK_SIZEOF(int)
  275. AC_CHECK_SIZEOF(long)
  276. AC_CHECK_SIZEOF(long long)
  277. AC_CHECK_SIZEOF(__int64)
  278. AC_CHECK_SIZEOF(void *)
  279. AC_CHECK_SIZEOF(time_t)
  280. AC_CHECK_SIZEOF(size_t)
  281. AC_CHECK_TYPES([uint, u_char])
  282. AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, struct sockaddr_storage, sa_family_t], , ,
  283. [#ifdef HAVE_SYS_TYPES_H
  284. #include <sys/types.h>
  285. #endif
  286. #ifdef HAVE_NETINET_IN_H
  287. #include <netinet/in.h>
  288. #endif
  289. #ifdef HAVE_NETINET_IN6_H
  290. #include <netinet/in6.h>
  291. #endif
  292. #ifdef HAVE_SYS_SOCKET_H
  293. #include <sys/socket.h>
  294. #endif
  295. #ifdef MS_WINDOWS
  296. #define WIN32_WINNT 0x400
  297. #define _WIN32_WINNT 0x400
  298. #define WIN32_LEAN_AND_MEAN
  299. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  300. #include <winsock.h>
  301. #else
  302. #include <winsock2.h>
  303. #include <ws2tcpip.h>
  304. #endif
  305. #endif
  306. ])
  307. AC_CHECK_TYPES([rlim_t], , ,
  308. [#ifdef HAVE_SYS_RESOURCE_H
  309. #include <sys/resource.h>
  310. #endif
  311. ])
  312. if test -z "$CROSS_COMPILE"; then
  313. AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
  314. AC_RUN_IFELSE(AC_LANG_SOURCE([
  315. #ifdef HAVE_SYS_TYPES_H
  316. #include <sys/types.h>
  317. #endif
  318. #ifdef HAVE_SYS_TIME_H
  319. #include <sys/time.h>
  320. #endif
  321. #ifdef HAVE_TIME_H
  322. #include <time.h>
  323. #endif
  324. int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }]),
  325. tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes)
  326. ])
  327. else
  328. # Cross-compiling; let's hope the target platform isn't loony.
  329. AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  330. tor_cv_time_t_signed=yes
  331. fi
  332. if test $tor_cv_time_t_signed = yes; then
  333. AC_DEFINE([TIME_T_IS_SIGNED], 1,
  334. [Define to 1 iff time_t is signed])
  335. fi
  336. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  337. #ifdef HAVE_SYS_SOCKET_H
  338. #include <sys/socket.h>
  339. #endif
  340. ])
  341. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  342. AC_CHECK_SIZEOF(cell_t)
  343. # Now make sure that NULL can be represented as zero bytes.
  344. if test -z "$CROSS_COMPILE"; then
  345. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  346. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  347. [[#include <stdlib.h>
  348. #include <string.h>
  349. #include <stdio.h>
  350. #ifdef HAVE_STDDEF_H
  351. #include <stddef.h>
  352. #endif
  353. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  354. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  355. [tor_cv_null_is_zero=yes],
  356. [tor_cv_null_is_zero=no],
  357. [tor_cv_null_is_zero=cross])])
  358. else
  359. # Cross-compiling; let's hope that the target isn't raving mad.
  360. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  361. tor_cv_null_is_zero=yes
  362. fi
  363. if test $tor_cv_null_is_zero = yes; then
  364. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  365. [Define to 1 iff memset(0) sets pointers to NULL])
  366. fi
  367. # And what happens when we malloc zero?
  368. if test -z "$CROSS_COMPILE"; then
  369. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  370. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  371. [[#include <stdlib.h>
  372. #include <string.h>
  373. #include <stdio.h>
  374. #ifdef HAVE_STDDEF_H
  375. #include <stddef.h>
  376. #endif
  377. int main () { return malloc(0)?0:1; }]])],
  378. [tor_cv_malloc_zero_works=yes],
  379. [tor_cv_malloc_zero_works=no],
  380. [tor_cv_malloc_zero_works=cross])])
  381. else
  382. # Cross-compiling; let's hope that the target isn't raving mad.
  383. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  384. tor_cv_malloc_zero_works=no
  385. fi
  386. if test $tor_cv_malloc_zero_works = yes; then
  387. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  388. [Define to 1 iff malloc(0) returns a pointer])
  389. fi
  390. # whether we seem to be in a 2s-complement world.
  391. if test -z "$CROSS_COMPILE"; then
  392. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  393. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  394. [[int main () { int problem = ((-99) != (~99)+1);
  395. return problem ? 1 : 0; }]])],
  396. [tor_cv_twos_complement=yes],
  397. [tor_cv_twos_complement=no],
  398. [tor_cv_twos_complement=cross])])
  399. else
  400. # Cross-compiling; let's hope that the target isn't raving mad.
  401. AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
  402. tor_cv_twos_complement=yes
  403. fi
  404. if test $tor_cv_twos_complement = yes; then
  405. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  406. [Define to 1 iff we represent negative integers with two's complement])
  407. fi
  408. # Whether we should use the dmalloc memory allocation debugging library.
  409. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  410. AC_ARG_WITH(dmalloc,
  411. [ --with-dmalloc Use debug memory allocation library. ],
  412. [if [[ "$withval" = "yes" ]]; then
  413. dmalloc=1
  414. AC_MSG_RESULT(yes)
  415. else
  416. dmalloc=1
  417. AC_MSG_RESULT(no)
  418. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  419. )
  420. if [[ $dmalloc -eq 1 ]]; then
  421. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  422. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  423. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  424. AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
  425. fi
  426. # Allow user to specify an alternate syslog facility
  427. AC_ARG_WITH(syslog-facility,
  428. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  429. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  430. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  431. AC_SUBST(LOGFACILITY)
  432. # Check for gethostbyname_r in all its glorious incompatible versions.
  433. # (This logic is based on that in Python's configure.in)
  434. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  435. [Define this if you have any gethostbyname_r()])
  436. AC_CHECK_FUNC(gethostbyname_r, [
  437. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  438. OLD_CFLAGS=$CFLAGS
  439. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  440. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([
  441. #include <netdb.h>
  442. ], [[
  443. char *cp1, *cp2;
  444. struct hostent *h1, *h2;
  445. int i1, i2;
  446. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  447. ]]),[
  448. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  449. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  450. [Define this if gethostbyname_r takes 6 arguments])
  451. AC_MSG_RESULT(6)
  452. ], [
  453. AC_TRY_COMPILE([
  454. #include <netdb.h>
  455. ], [
  456. char *cp1, *cp2;
  457. struct hostent *h1;
  458. int i1, i2;
  459. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  460. ], [
  461. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  462. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  463. [Define this if gethostbyname_r takes 5 arguments])
  464. AC_MSG_RESULT(5)
  465. ], [
  466. AC_TRY_COMPILE([
  467. #include <netdb.h>
  468. ], [
  469. char *cp1;
  470. struct hostent *h1;
  471. struct hostent_data hd;
  472. (void) gethostbyname_r(cp1,h1,&hd);
  473. ], [
  474. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  475. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  476. [Define this if gethostbyname_r takes 3 arguments])
  477. AC_MSG_RESULT(3)
  478. ], [
  479. AC_MSG_RESULT(0)
  480. ])
  481. ])
  482. ])
  483. CFLAGS=$OLD_CFLAGS
  484. ])
  485. AC_CACHE_CHECK([whether the C compiler supports __func__],
  486. tor_cv_have_func_macro,
  487. AC_COMPILE_IFELSE([
  488. #include <stdio.h>
  489. int main(int c, char **v) { puts(__func__); }],
  490. tor_cv_have_func_macro=yes,
  491. tor_cv_have_func_macro=no))
  492. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  493. tor_cv_have_FUNC_macro,
  494. AC_COMPILE_IFELSE([
  495. #include <stdio.h>
  496. int main(int c, char **v) { puts(__FUNC__); }],
  497. tor_cv_have_FUNC_macro=yes,
  498. tor_cv_have_FUNC_macro=no))
  499. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  500. tor_cv_have_FUNCTION_macro,
  501. AC_COMPILE_IFELSE([
  502. #include <stdio.h>
  503. int main(int c, char **v) { puts(__FUNCTION__); }],
  504. tor_cv_have_FUNCTION_macro=yes,
  505. tor_cv_have_FUNCTION_macro=no))
  506. if test $tor_cv_have_func_macro = 'yes'; then
  507. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  508. fi
  509. if test $tor_cv_have_FUNC_macro = 'yes'; then
  510. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  511. fi
  512. if test $tor_cv_have_FUNCTION_macro = 'yes'; then
  513. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  514. [Defined if the compiler supports __FUNCTION__])
  515. fi
  516. # $prefix stores the value of the --prefix command line option, or
  517. # NONE if the option wasn't set. In the case that it wasn't set, make
  518. # it be the default, so that we can use it to expand directories now.
  519. if test "x$prefix" = "xNONE"; then
  520. prefix=$ac_default_prefix
  521. fi
  522. # and similarly for $exec_prefix
  523. if test "x$exec_prefix" = "xNONE"; then
  524. exec_prefix=$prefix
  525. fi
  526. if test "x$CONFDIR" = "x"; then
  527. CONFDIR=`eval echo $sysconfdir/tor`
  528. fi
  529. AC_SUBST(CONFDIR)
  530. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  531. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  532. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  533. # than autoconf's macros like.
  534. if test $ac_cv_c_compiler_gnu = yes; then
  535. CFLAGS="$CFLAGS -Wall -g -O2"
  536. else
  537. CFLAGS="$CFLAGS -g -O"
  538. enable_gcc_warnings=no
  539. fi
  540. # Add some more warnings which we use in development but not in the
  541. # released versions. (Some relevant gcc versions can't handle these.)
  542. if test x$enable_gcc_warnings = xyes; then
  543. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  544. #if !defined(__GNUC__) || (__GNUC__ < 4)
  545. #error
  546. #endif]), have_gcc4=yes, have_gcc4=no)
  547. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  548. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  549. #error
  550. #endif]), have_gcc42=yes, have_gcc42=no)
  551. CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Wwrite-strings -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wbad-function-cast -Wswitch-enum -Werror"
  552. # Disabled, so we can use mallinfo(): -Waggregate-return
  553. if test x$have_gcc4 = xyes ; then
  554. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  555. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  556. fi
  557. if test x$have_gcc42 = xyes ; then
  558. # These warnings break gcc 4.0.2 and work on gcc 4.2
  559. # XXXX020 Use -fstack-protector.
  560. # XXXX020 See if any of these work with earlier versions.
  561. CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wnormalized=id -Woverride-init -Wstrict-overflow=5"
  562. fi
  563. ##This will break the world on some 64-bit architectures
  564. # CFLAGS="$CFLAGS -Winline"
  565. fi
  566. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
  567. 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])
  568. AC_OUTPUT
  569. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  570. ./contrib/updateVersions.pl
  571. fi