configure.in 30 KB

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  1. dnl Copyright (c) 2001-2004, Roger Dingledine
  2. dnl Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson
  3. dnl Copyright (c) 2007-2008, The Tor Project, Inc.
  4. dnl See LICENSE for licensing information
  5. AC_INIT
  6. AM_INIT_AUTOMAKE(tor, 0.2.3.0-alpha-dev)
  7. AM_CONFIG_HEADER(orconfig.h)
  8. AC_CANONICAL_HOST
  9. if test -f /etc/redhat-release ; then
  10. if test -f /usr/kerberos/include ; then
  11. CPPFLAGS="$CPPFLAGS -I/usr/kerberos/include"
  12. fi
  13. fi
  14. # Not a no-op; we want to make sure that CPPFLAGS is set before we use
  15. # the += operator on it in src/or/Makefile.am
  16. CPPFLAGS="$CPPFLAGS -I\${top_srcdir}/src/common"
  17. #XXXX020 We should make these enabled or not, before 0.2.0.x-final
  18. AC_ARG_ENABLE(buf-freelists,
  19. AS_HELP_STRING(--disable-buf-freelists, disable freelists for buffer RAM))
  20. AC_ARG_ENABLE(openbsd-malloc,
  21. AS_HELP_STRING(--enable-openbsd-malloc, Use malloc code from openbsd. Linux only))
  22. AC_ARG_ENABLE(instrument-downloads,
  23. AS_HELP_STRING(--enable-instrument-downloads, Instrument downloads of directory resources etc.))
  24. AC_ARG_ENABLE(static-openssl,
  25. AS_HELP_STRING(--enable-static-openssl, Link against a static openssl library. Requires --with-openssl-dir))
  26. AC_ARG_ENABLE(static-libevent,
  27. AS_HELP_STRING(--enable-static-libevent, Link against a static libevent library. Requires --with-libevent-dir))
  28. AC_ARG_ENABLE(static-zlib,
  29. AS_HELP_STRING(--enable-static-zlib, Link against a static zlib library. Requires --with-zlib-dir))
  30. if test x$enable_buf_freelists != xno; then
  31. AC_DEFINE(ENABLE_BUF_FREELISTS, 1,
  32. [Defined if we try to use freelists for buffer RAM chunks])
  33. fi
  34. AM_CONDITIONAL(USE_OPENBSD_MALLOC, test x$enable_openbsd_malloc = xyes)
  35. if test x$enable_instrument_downloads = xyes; then
  36. AC_DEFINE(INSTRUMENT_DOWNLOADS, 1,
  37. [Defined if we want to keep track of how much of each kind of resource we download.])
  38. fi
  39. AC_ARG_ENABLE(transparent,
  40. AS_HELP_STRING(--disable-transparent, disable transparent proxy support),
  41. [case "${enableval}" in
  42. yes) transparent=true ;;
  43. no) transparent=false ;;
  44. *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
  45. esac], [transparent=true])
  46. AC_ARG_ENABLE(asciidoc,
  47. AS_HELP_STRING(--disable-asciidoc, don't use asciidoc (disables building of manpages)),
  48. [case "${enableval}" in
  49. yes) asciidoc=true ;;
  50. no) asciidoc=false ;;
  51. *) AC_MSG_ERROR(bad value for --disable-asciidoc) ;;
  52. esac], [asciidoc=true])
  53. AC_ARG_ENABLE(threads,
  54. AS_HELP_STRING(--disable-threads, disable multi-threading support))
  55. if test x$enable_threads = x; then
  56. case $host in
  57. *-*-solaris* )
  58. # Don't try multithreading on solaris -- cpuworkers seem to lock.
  59. AC_MSG_NOTICE([You are running Solaris; Sometimes threading makes
  60. cpu workers lock up here, so I will disable threads.])
  61. enable_threads="no";;
  62. *)
  63. enable_threads="yes";;
  64. esac
  65. fi
  66. if test "$enable_threads" = "yes"; then
  67. AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
  68. fi
  69. case $host in
  70. *-*-solaris* )
  71. AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
  72. ;;
  73. esac
  74. AC_ARG_ENABLE(gcc-warnings,
  75. AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
  76. AC_ARG_ENABLE(gcc-warnings-advisory,
  77. AS_HELP_STRING(--enable-gcc-warnings-advisory, [enable verbose warnings, excluding -Werror]))
  78. dnl Adam shostack suggests the following for Windows:
  79. dnl -D_FORTIFY_SOURCE=2 -fstack-protector-all
  80. dnl Others suggest '/gs /safeseh /nxcompat /dynamicbase' for non-gcc on Windows
  81. dnl This requires that we use gcc and that we add -O2 to the CFLAGS.
  82. AC_ARG_ENABLE(gcc-hardening,
  83. AS_HELP_STRING(--enable-gcc-hardening, enable compiler security checks),
  84. [if test x$enableval = xyes; then
  85. CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector-all"
  86. CFLAGS="$CFLAGS -fwrapv -fPIE -Wstack-protector -Wformat -Wformat-security"
  87. CFLAGS="$CFLAGS -Wpointer-sign"
  88. LDFLAGS="$LDFLAGS -pie"
  89. fi])
  90. dnl Linker hardening options
  91. dnl Currently these options are ELF specific - you can't use this with MacOSX
  92. AC_ARG_ENABLE(linker-hardening,
  93. AS_HELP_STRING(--enable-linker-hardening, enable linker security fixups),
  94. [if test x$enableval = xyes; then
  95. LDFLAGS="$LDFLAGS -z relro -z now"
  96. fi])
  97. AC_ARG_ENABLE(local-appdata,
  98. AS_HELP_STRING(--enable-local-appdata, default to host local application data paths on Windows))
  99. if test "$enable_local_appdata" = "yes"; then
  100. AC_DEFINE(ENABLE_LOCAL_APPDATA, 1,
  101. [Defined if we default to host local appdata paths on Windows])
  102. fi
  103. AC_ARG_ENABLE(bufferevents,
  104. AS_HELP_STRING(--enable-bufferevents, use Libevent's buffered IO.))
  105. AC_PROG_CC
  106. AC_PROG_CPP
  107. AC_PROG_MAKE_SET
  108. AC_PROG_RANLIB
  109. dnl autoconf 2.59 appears not to support AC_PROG_SED
  110. AC_CHECK_PROG([SED],[sed],[sed],[/bin/false])
  111. dnl check for asciidoc and a2x
  112. AC_PATH_PROG([ASCIIDOC], [asciidoc], none)
  113. AC_PATH_PROG([A2X], [a2x], none)
  114. AM_CONDITIONAL(USE_ASCIIDOC, test x$asciidoc = xtrue)
  115. AC_PATH_PROG([SHA1SUM], [sha1sum], none)
  116. AC_PATH_PROG([OPENSSL], [openssl], none)
  117. TORUSER=_tor
  118. AC_ARG_WITH(tor-user,
  119. [ --with-tor-user=NAME Specify username for tor daemon ],
  120. [
  121. TORUSER=$withval
  122. ]
  123. )
  124. AC_SUBST(TORUSER)
  125. TORGROUP=_tor
  126. AC_ARG_WITH(tor-group,
  127. [ --with-tor-group=NAME Specify group name for tor daemon ],
  128. [
  129. TORGROUP=$withval
  130. ]
  131. )
  132. AC_SUBST(TORGROUP)
  133. dnl If WIN32 is defined and non-zero, we are building for win32
  134. AC_MSG_CHECKING([for win32])
  135. AC_RUN_IFELSE([
  136. int main(int c, char **v) {
  137. #ifdef WIN32
  138. #if WIN32
  139. return 0;
  140. #else
  141. return 1;
  142. #endif
  143. #else
  144. return 2;
  145. #endif
  146. }],
  147. bwin32=true; AC_MSG_RESULT([yes]),
  148. bwin32=false; AC_MSG_RESULT([no]),
  149. bwin32=cross; AC_MSG_RESULT([cross])
  150. )
  151. if test "$bwin32" = cross; then
  152. AC_MSG_CHECKING([for win32 (cross)])
  153. AC_COMPILE_IFELSE([
  154. #ifdef WIN32
  155. int main(int c, char **v) {return 0;}
  156. #else
  157. #error
  158. int main(int c, char **v) {return x(y);}
  159. #endif
  160. ],
  161. bwin32=true; AC_MSG_RESULT([yes]),
  162. bwin32=false; AC_MSG_RESULT([no]))
  163. fi
  164. if test "$bwin32" = true; then
  165. AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
  166. fi
  167. AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
  168. dnl Enable C99 when compiling with MIPSpro
  169. AC_MSG_CHECKING([for MIPSpro compiler])
  170. AC_COMPILE_IFELSE(AC_LANG_PROGRAM(, [
  171. #if (defined(__sgi) && defined(_COMPILER_VERSION))
  172. #error
  173. return x(y);
  174. #endif
  175. ]),
  176. bmipspro=false; AC_MSG_RESULT(no),
  177. bmipspro=true; AC_MSG_RESULT(yes))
  178. if test "$bmipspro" = true; then
  179. CFLAGS="$CFLAGS -c99"
  180. fi
  181. AC_C_BIGENDIAN
  182. AC_SEARCH_LIBS(socket, [socket])
  183. AC_SEARCH_LIBS(gethostbyname, [nsl])
  184. AC_SEARCH_LIBS(dlopen, [dl])
  185. AC_SEARCH_LIBS(inet_aton, [resolv])
  186. if test "$enable_threads" = "yes"; then
  187. AC_SEARCH_LIBS(pthread_create, [pthread])
  188. AC_SEARCH_LIBS(pthread_detach, [pthread])
  189. fi
  190. dnl -------------------------------------------------------------------
  191. dnl Check for functions before libevent, since libevent-1.2 apparently
  192. dnl exports strlcpy without defining it in a header.
  193. AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit strlcat strlcpy strtoull getaddrinfo localtime_r gmtime_r memmem strtok_r flock prctl vasprintf sysconf)
  194. using_custom_malloc=no
  195. if test x$enable_openbsd_malloc = xyes ; then
  196. AC_DEFINE(HAVE_MALLOC_GOOD_SIZE, 1, [Defined if we have the malloc_good_size function])
  197. using_custom_malloc=yes
  198. fi
  199. if test x$tcmalloc = xyes ; then
  200. using_custom_malloc=yes
  201. fi
  202. if test $using_custom_malloc = no ; then
  203. AC_CHECK_FUNCS(mallinfo malloc_good_size malloc_usable_size)
  204. fi
  205. if test "$enable_threads" = "yes"; then
  206. AC_CHECK_HEADERS(pthread.h)
  207. AC_CHECK_FUNCS(pthread_create)
  208. fi
  209. dnl ------------------------------------------------------
  210. dnl Where do you live, libevent? And how do we call you?
  211. if test "$bwin32" = true; then
  212. TOR_LIB_WS32=-lws2_32
  213. # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  214. # think it's actually necessary.
  215. TOR_LIB_GDI=-lgdi32
  216. else
  217. TOR_LIB_WS32=
  218. TOR_LIB_GDI=
  219. fi
  220. AC_SUBST(TOR_LIB_WS32)
  221. AC_SUBST(TOR_LIB_GDI)
  222. dnl We need to do this before we try our disgusting hack below.
  223. AC_CHECK_HEADERS([sys/types.h])
  224. dnl This is a disgusting hack so we safely include older libevent headers.
  225. AC_CHECK_TYPE(u_int64_t, unsigned long long)
  226. AC_CHECK_TYPE(u_int32_t, unsigned long)
  227. AC_CHECK_TYPE(u_int16_t, unsigned short)
  228. AC_CHECK_TYPE(u_int8_t, unsigned char)
  229. tor_libevent_pkg_redhat="libevent"
  230. tor_libevent_pkg_debian="libevent-dev"
  231. tor_libevent_devpkg_redhat="libevent-devel"
  232. tor_libevent_devpkg_debian="libevent-dev"
  233. TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $TOR_LIB_WS32], [
  234. #ifdef WIN32
  235. #include <winsock2.h>
  236. #endif
  237. #include <stdlib.h>
  238. #include <sys/time.h>
  239. #include <sys/types.h>
  240. #include <event.h>], [
  241. #ifdef WIN32
  242. #include <winsock2.h>
  243. #endif
  244. void exit(int); void *event_init(void);],
  245. [
  246. #ifdef WIN32
  247. {WSADATA d; WSAStartup(0x101,&d); }
  248. #endif
  249. event_init(); exit(0);
  250. ], [--with-libevent-dir], [/opt/libevent])
  251. dnl Now check for particular libevent functions.
  252. save_LIBS="$LIBS"
  253. save_LDFLAGS="$LDFLAGS"
  254. save_CPPFLAGS="$CPPFLAGS"
  255. LIBS="-levent $TOR_LIB_WS32 $LIBS"
  256. LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
  257. CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
  258. AC_CHECK_FUNCS(event_get_version event_get_version_number event_get_method event_set_log_callback evdns_set_outgoing_bind_address event_base_loopexit)
  259. AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
  260. [#include <event.h>
  261. ])
  262. AC_CHECK_HEADERS(event2/event.h event2/dns.h event2/bufferevent_ssl.h)
  263. LIBS="$save_LIBS"
  264. LDFLAGS="$save_LDFLAGS"
  265. CPPFLAGS="$save_CPPFLAGS"
  266. AM_CONDITIONAL(USE_EXTERNAL_EVDNS, test x$ac_cv_header_event2_dns_h = xyes)
  267. if test "$enable_static_libevent" = "yes"; then
  268. if test "$tor_cv_library_libevent_dir" = "(system)"; then
  269. AC_MSG_ERROR("You must specify an explicit --with-libevent-dir=x option when using --enable-static-libevent")
  270. else
  271. TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent.a"
  272. fi
  273. else
  274. TOR_LIBEVENT_LIBS="-levent"
  275. fi
  276. AC_SUBST(TOR_LIBEVENT_LIBS)
  277. dnl This isn't the best test for Libevent 2.0.3-alpha. Once it's released,
  278. dnl we can do much better.
  279. if test "$enable_bufferevents" = "yes" ; then
  280. if test "$ac_cv_header_event2_bufferevent_ssl_h" != "yes" ; then
  281. AC_MSG_ERROR([You've asked for bufferevent support, but you're using a version of Libevent without SSL support. This won't work. We need Libevent 2.0.7-rc or later, and you don't seem to even have Libevent 2.0.3-alpha.])
  282. else
  283. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent"
  284. # Check for the right version. First see if version detection works.
  285. AC_MSG_CHECKING([whether we can detect the Libevent version])
  286. AC_COMPILE_IFELSE([
  287. #include <event2/event.h>
  288. #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 10
  289. #error
  290. int x = y(zz);
  291. #else
  292. int x = 1;
  293. #endif
  294. ], [event_version_number_works=yes; AC_MSG_RESULT([yes]) ],
  295. [event_version_number_works=no; AC_MSG_RESULT([no])])
  296. if test "$event_version_number_works" != 'yes'; then
  297. AC_MSG_WARN([Version detection on Libevent seems broken. Your Libevent installation is probably screwed up or very old.])
  298. else
  299. AC_MSG_CHECKING([whether Libevent is new enough for bufferevents])
  300. AC_COMPILE_IFELSE([
  301. #include <event2/event.h>
  302. #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 0x02000700
  303. #error
  304. int x = y(zz);
  305. #else
  306. int x = 1;
  307. #endif
  308. ], [ AC_MSG_RESULT([yes]) ],
  309. [ AC_MSG_RESULT([no])
  310. AC_MSG_ERROR([Libevent does not seem new enough to support bufferevents. We require 2.0.7-rc or later]) ] )
  311. fi
  312. fi
  313. fi
  314. LIBS="$save_LIBS"
  315. LDFLAGS="$save_LDFLAGS"
  316. CPPFLAGS="$save_CPPFLAGS"
  317. AM_CONDITIONAL(USE_BUFFEREVENTS, test "$enable_bufferevents" = "yes")
  318. if test "$enable_bufferevents" = "yes"; then
  319. AC_DEFINE(USE_BUFFEREVENTS, 1, [Defined if we're going to use Libevent's buffered IO API])
  320. fi
  321. dnl ------------------------------------------------------
  322. dnl Where do you live, openssl? And how do we call you?
  323. tor_openssl_pkg_redhat="openssl"
  324. tor_openssl_pkg_debian="libssl"
  325. tor_openssl_devpkg_redhat="openssl-devel"
  326. tor_openssl_devpkg_debian="libssl-dev"
  327. ALT_openssl_WITHVAL=""
  328. AC_ARG_WITH(ssl-dir,
  329. [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
  330. [
  331. if test "x$withval" != xno && test "x$withval" != "x" ; then
  332. ALT_openssl_WITHVAL="$withval"
  333. fi
  334. ])
  335. TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
  336. [#include <openssl/rand.h>],
  337. [void RAND_add(const void *buf, int num, double entropy);],
  338. [RAND_add((void*)0,0,0); exit(0);], [],
  339. [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
  340. dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
  341. echo "tor_cv_library_openssl_dir is $tor_cv_library_openssl_dir"
  342. if test "$enable_static_openssl" = "yes"; then
  343. if test "$tor_cv_library_openssl_dir" = "(system)"; then
  344. AC_MSG_ERROR("You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl")
  345. else
  346. TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a"
  347. fi
  348. else
  349. TOR_OPENSSL_LIBS="-lssl -lcrypto"
  350. fi
  351. AC_SUBST(TOR_OPENSSL_LIBS)
  352. dnl ------------------------------------------------------
  353. dnl Where do you live, zlib? And how do we call you?
  354. tor_openssl_pkg_redhat="zlib"
  355. tor_openssl_pkg_debian="zlib1g"
  356. tor_openssl_devpkg_redhat="zlib-devel"
  357. tor_openssl_devpkg_debian="zlib1g-dev"
  358. TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
  359. [#include <zlib.h>],
  360. [const char * zlibVersion(void);],
  361. [zlibVersion(); exit(0);], [--with-zlib-dir],
  362. [/opt/zlib])
  363. if test "$enable_static_zlib" = "yes"; then
  364. if test "$tor_cv_library_zlib_dir" = "(system)"; then
  365. AC_MSG_ERROR("You must specify an explicit --with-zlib-dir=x option when
  366. using --enable-static-zlib")
  367. else
  368. TOR_ZLIB_LIBS="$TOR_LIBDIR_zlib/libz.a"
  369. echo "$TOR_LIBDIR_zlib/libz.a"
  370. fi
  371. else
  372. TOR_ZLIB_LIBS="-lz"
  373. fi
  374. AC_SUBST(TOR_ZLIB_LIBS)
  375. dnl Make sure to enable support for large off_t if available.
  376. AC_SYS_LARGEFILE
  377. 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.))
  378. AC_CHECK_HEADERS(netdb.h sys/ioctl.h sys/socket.h arpa/inet.h netinet/in.h pwd.h grp.h sys/un.h)
  379. dnl These headers are not essential
  380. 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)
  381. TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
  382. [#ifdef HAVE_MALLOC_H
  383. #include <malloc.h>
  384. #endif
  385. #ifdef HAVE_MALLOC_MALLOC_H
  386. #include <malloc/malloc.h>
  387. #endif])
  388. AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
  389. [#ifdef HAVE_SYS_TYPES_H
  390. #include <sys/types.h>
  391. #endif
  392. #ifdef HAVE_SYS_SOCKET_H
  393. #include <sys/socket.h>
  394. #endif])
  395. AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
  396. [#ifdef HAVE_SYS_TYPES_H
  397. #include <sys/types.h>
  398. #endif
  399. #ifdef HAVE_SYS_SOCKET_H
  400. #include <sys/socket.h>
  401. #endif
  402. #ifdef HAVE_NET_IF_H
  403. #include <net/if.h>
  404. #endif])
  405. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  406. linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
  407. [#ifdef HAVE_SYS_TYPES_H
  408. #include <sys/types.h>
  409. #endif
  410. #ifdef HAVE_SYS_SOCKET_H
  411. #include <sys/socket.h>
  412. #endif
  413. #ifdef HAVE_LIMITS_H
  414. #include <limits.h>
  415. #endif
  416. #ifdef HAVE_LINUX_TYPES_H
  417. #include <linux/types.h>
  418. #endif
  419. #ifdef HAVE_NETINET_IN6_H
  420. #include <netinet/in6.h>
  421. #endif
  422. #ifdef HAVE_NETINET_IN_H
  423. #include <netinet/in.h>
  424. #endif])
  425. if test x$transparent = xtrue ; then
  426. transparent_ok=0
  427. if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
  428. transparent_ok=1
  429. fi
  430. if test x$linux_netfilter_ipv4 = x1 ; then
  431. transparent_ok=1
  432. fi
  433. if test x$transparent_ok = x1 ; then
  434. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  435. case $host in
  436. *-*-openbsd*)
  437. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  438. esac
  439. else
  440. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  441. fi
  442. fi
  443. AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
  444. [#ifdef HAVE_SYS_TYPES_H
  445. #include <sys/types.h>
  446. #endif
  447. #ifdef HAVE_SYS_TIME_H
  448. #include <sys/time.h>
  449. #endif])
  450. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  451. dnl Watch out.
  452. AC_CHECK_SIZEOF(int8_t)
  453. AC_CHECK_SIZEOF(int16_t)
  454. AC_CHECK_SIZEOF(int32_t)
  455. AC_CHECK_SIZEOF(int64_t)
  456. AC_CHECK_SIZEOF(uint8_t)
  457. AC_CHECK_SIZEOF(uint16_t)
  458. AC_CHECK_SIZEOF(uint32_t)
  459. AC_CHECK_SIZEOF(uint64_t)
  460. AC_CHECK_SIZEOF(intptr_t)
  461. AC_CHECK_SIZEOF(uintptr_t)
  462. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  463. AC_CHECK_SIZEOF(char)
  464. AC_CHECK_SIZEOF(short)
  465. AC_CHECK_SIZEOF(int)
  466. AC_CHECK_SIZEOF(long)
  467. AC_CHECK_SIZEOF(long long)
  468. AC_CHECK_SIZEOF(__int64)
  469. AC_CHECK_SIZEOF(void *)
  470. AC_CHECK_SIZEOF(time_t)
  471. AC_CHECK_SIZEOF(size_t)
  472. AC_CHECK_TYPES([uint, u_char, ssize_t])
  473. dnl used to include sockaddr_storage, but everybody has that.
  474. AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
  475. [#ifdef HAVE_SYS_TYPES_H
  476. #include <sys/types.h>
  477. #endif
  478. #ifdef HAVE_NETINET_IN_H
  479. #include <netinet/in.h>
  480. #endif
  481. #ifdef HAVE_NETINET_IN6_H
  482. #include <netinet/in6.h>
  483. #endif
  484. #ifdef HAVE_SYS_SOCKET_H
  485. #include <sys/socket.h>
  486. #endif
  487. #ifdef MS_WINDOWS
  488. #define WIN32_WINNT 0x400
  489. #define _WIN32_WINNT 0x400
  490. #define WIN32_LEAN_AND_MEAN
  491. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  492. #include <winsock.h>
  493. #else
  494. #include <winsock2.h>
  495. #include <ws2tcpip.h>
  496. #endif
  497. #endif
  498. ])
  499. AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
  500. [#ifdef HAVE_SYS_TYPES_H
  501. #include <sys/types.h>
  502. #endif
  503. #ifdef HAVE_NETINET_IN_H
  504. #include <netinet/in.h>
  505. #endif
  506. #ifdef HAVE_NETINET_IN6_H
  507. #include <netinet/in6.h>
  508. #endif
  509. #ifdef HAVE_SYS_SOCKET_H
  510. #include <sys/socket.h>
  511. #endif
  512. #ifdef MS_WINDOWS
  513. #define WIN32_WINNT 0x400
  514. #define _WIN32_WINNT 0x400
  515. #define WIN32_LEAN_AND_MEAN
  516. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  517. #include <winsock.h>
  518. #else
  519. #include <winsock2.h>
  520. #include <ws2tcpip.h>
  521. #endif
  522. #endif
  523. ])
  524. AC_CHECK_TYPES([rlim_t], , ,
  525. [#ifdef HAVE_SYS_TYPES_H
  526. #include <sys/types.h>
  527. #endif
  528. #ifdef HAVE_SYS_TIME_H
  529. #include <sys/time.h>
  530. #endif
  531. #ifdef HAVE_SYS_RESOURCE_H
  532. #include <sys/resource.h>
  533. #endif
  534. ])
  535. AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
  536. AC_RUN_IFELSE(AC_LANG_SOURCE([
  537. #ifdef HAVE_SYS_TYPES_H
  538. #include <sys/types.h>
  539. #endif
  540. #ifdef HAVE_SYS_TIME_H
  541. #include <sys/time.h>
  542. #endif
  543. #ifdef HAVE_TIME_H
  544. #include <time.h>
  545. #endif
  546. int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }]),
  547. tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes, tor_cv_time_t_signed=cross)
  548. ])
  549. if test "$tor_cv_time_t_signed" = cross; then
  550. AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  551. fi
  552. if test "$tor_cv_time_t_signed" != no; then
  553. AC_DEFINE([TIME_T_IS_SIGNED], 1,
  554. [Define to 1 iff time_t is signed])
  555. fi
  556. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  557. #ifdef HAVE_SYS_SOCKET_H
  558. #include <sys/socket.h>
  559. #endif
  560. ])
  561. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  562. AC_CHECK_SIZEOF(cell_t)
  563. # Now make sure that NULL can be represented as zero bytes.
  564. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  565. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  566. [[#include <stdlib.h>
  567. #include <string.h>
  568. #include <stdio.h>
  569. #ifdef HAVE_STDDEF_H
  570. #include <stddef.h>
  571. #endif
  572. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  573. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  574. [tor_cv_null_is_zero=yes],
  575. [tor_cv_null_is_zero=no],
  576. [tor_cv_null_is_zero=cross])])
  577. if test "$tor_cv_null_is_zero" = cross ; then
  578. # Cross-compiling; let's hope that the target isn't raving mad.
  579. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  580. fi
  581. if test "$tor_cv_null_is_zero" != no; then
  582. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  583. [Define to 1 iff memset(0) sets pointers to NULL])
  584. fi
  585. # And what happens when we malloc zero?
  586. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  587. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  588. [[#include <stdlib.h>
  589. #include <string.h>
  590. #include <stdio.h>
  591. #ifdef HAVE_STDDEF_H
  592. #include <stddef.h>
  593. #endif
  594. int main () { return malloc(0)?0:1; }]])],
  595. [tor_cv_malloc_zero_works=yes],
  596. [tor_cv_malloc_zero_works=no],
  597. [tor_cv_malloc_zero_works=cross])])
  598. if test "$tor_cv_malloc_zero_works" = cross; then
  599. # Cross-compiling; let's hope that the target isn't raving mad.
  600. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  601. fi
  602. if test "$tor_cv_malloc_zero_works" = yes; then
  603. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  604. [Define to 1 iff malloc(0) returns a pointer])
  605. fi
  606. # whether we seem to be in a 2s-complement world.
  607. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  608. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  609. [[int main () { int problem = ((-99) != (~99)+1);
  610. return problem ? 1 : 0; }]])],
  611. [tor_cv_twos_complement=yes],
  612. [tor_cv_twos_complement=no],
  613. [tor_cv_twos_complement=cross])])
  614. if test "$tor_cv_twos_complement" = cross ; then
  615. # Cross-compiling; let's hope that the target isn't raving mad.
  616. AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
  617. fi
  618. if test "$tor_cv_twos_complement" != no ; then
  619. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  620. [Define to 1 iff we represent negative integers with two's complement])
  621. fi
  622. # Whether we should use the dmalloc memory allocation debugging library.
  623. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  624. AC_ARG_WITH(dmalloc,
  625. [ --with-dmalloc Use debug memory allocation library. ],
  626. [if [[ "$withval" = "yes" ]]; then
  627. dmalloc=1
  628. AC_MSG_RESULT(yes)
  629. else
  630. dmalloc=1
  631. AC_MSG_RESULT(no)
  632. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  633. )
  634. if [[ $dmalloc -eq 1 ]]; then
  635. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  636. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  637. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  638. AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
  639. AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
  640. fi
  641. AC_ARG_WITH(tcmalloc,
  642. [ --with-tcmalloc Use tcmalloc memory allocation library. ],
  643. [ tcmalloc=yes ], [ tcmalloc=no ])
  644. if test x$tcmalloc = xyes ; then
  645. LDFLAGS="-ltcmalloc $LDFLAGS"
  646. fi
  647. # By default, we're going to assume we don't have mlockall()
  648. # bionic and other platforms have various broken mlockall subsystems.
  649. # Some systems don't have a working mlockall, some aren't linkable,
  650. # and some have it but don't declare it.
  651. AC_CHECK_FUNCS(mlockall)
  652. AC_CHECK_DECLS([mlockall], , , [
  653. #ifdef HAVE_SYS_MMAN_H
  654. #include <sys/mman.h>
  655. #endif])
  656. # Allow user to specify an alternate syslog facility
  657. AC_ARG_WITH(syslog-facility,
  658. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  659. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  660. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  661. AC_SUBST(LOGFACILITY)
  662. # Check if we have getresuid and getresgid
  663. AC_CHECK_FUNCS(getresuid getresgid)
  664. # Check for gethostbyname_r in all its glorious incompatible versions.
  665. # (This logic is based on that in Python's configure.in)
  666. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  667. [Define this if you have any gethostbyname_r()])
  668. AC_CHECK_FUNC(gethostbyname_r, [
  669. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  670. OLD_CFLAGS=$CFLAGS
  671. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  672. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([
  673. #include <netdb.h>
  674. ], [[
  675. char *cp1, *cp2;
  676. struct hostent *h1, *h2;
  677. int i1, i2;
  678. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  679. ]]),[
  680. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  681. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  682. [Define this if gethostbyname_r takes 6 arguments])
  683. AC_MSG_RESULT(6)
  684. ], [
  685. AC_TRY_COMPILE([
  686. #include <netdb.h>
  687. ], [
  688. char *cp1, *cp2;
  689. struct hostent *h1;
  690. int i1, i2;
  691. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  692. ], [
  693. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  694. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  695. [Define this if gethostbyname_r takes 5 arguments])
  696. AC_MSG_RESULT(5)
  697. ], [
  698. AC_TRY_COMPILE([
  699. #include <netdb.h>
  700. ], [
  701. char *cp1;
  702. struct hostent *h1;
  703. struct hostent_data hd;
  704. (void) gethostbyname_r(cp1,h1,&hd);
  705. ], [
  706. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  707. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  708. [Define this if gethostbyname_r takes 3 arguments])
  709. AC_MSG_RESULT(3)
  710. ], [
  711. AC_MSG_RESULT(0)
  712. ])
  713. ])
  714. ])
  715. CFLAGS=$OLD_CFLAGS
  716. ])
  717. AC_CACHE_CHECK([whether the C compiler supports __func__],
  718. tor_cv_have_func_macro,
  719. AC_COMPILE_IFELSE([
  720. #include <stdio.h>
  721. int main(int c, char **v) { puts(__func__); }],
  722. tor_cv_have_func_macro=yes,
  723. tor_cv_have_func_macro=no))
  724. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  725. tor_cv_have_FUNC_macro,
  726. AC_COMPILE_IFELSE([
  727. #include <stdio.h>
  728. int main(int c, char **v) { puts(__FUNC__); }],
  729. tor_cv_have_FUNC_macro=yes,
  730. tor_cv_have_FUNC_macro=no))
  731. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  732. tor_cv_have_FUNCTION_macro,
  733. AC_COMPILE_IFELSE([
  734. #include <stdio.h>
  735. int main(int c, char **v) { puts(__FUNCTION__); }],
  736. tor_cv_have_FUNCTION_macro=yes,
  737. tor_cv_have_FUNCTION_macro=no))
  738. if test "$tor_cv_have_func_macro" = 'yes'; then
  739. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  740. fi
  741. if test "$tor_cv_have_FUNC_macro" = 'yes'; then
  742. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  743. fi
  744. if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
  745. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  746. [Defined if the compiler supports __FUNCTION__])
  747. fi
  748. # $prefix stores the value of the --prefix command line option, or
  749. # NONE if the option wasn't set. In the case that it wasn't set, make
  750. # it be the default, so that we can use it to expand directories now.
  751. if test "x$prefix" = "xNONE"; then
  752. prefix=$ac_default_prefix
  753. fi
  754. # and similarly for $exec_prefix
  755. if test "x$exec_prefix" = "xNONE"; then
  756. exec_prefix=$prefix
  757. fi
  758. if test "x$CONFDIR" = "x"; then
  759. CONFDIR=`eval echo $sysconfdir/tor`
  760. fi
  761. AC_SUBST(CONFDIR)
  762. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  763. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  764. BINDIR=`eval echo $bindir`
  765. AC_SUBST(BINDIR)
  766. LOCALSTATEDIR=`eval echo $localstatedir`
  767. AC_SUBST(LOCALSTATEDIR)
  768. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  769. # than autoconf's macros like.
  770. if test "$GCC" = yes; then
  771. CFLAGS="$CFLAGS -Wall -g -O2"
  772. # Disable GCC's strict aliasing checks. They are an hours-to-debug
  773. # accident waiting to happen.
  774. CFLAGS="$CFLAGS -fno-strict-aliasing"
  775. else
  776. CFLAGS="$CFLAGS -g -O"
  777. enable_gcc_warnings=no
  778. enable_gcc_warnings_advisory=no
  779. fi
  780. # Add some more warnings which we use in development but not in the
  781. # released versions. (Some relevant gcc versions can't handle these.)
  782. if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
  783. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  784. #if !defined(__GNUC__) || (__GNUC__ < 4)
  785. #error
  786. #endif]), have_gcc4=yes, have_gcc4=no)
  787. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  788. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  789. #error
  790. #endif]), have_gcc42=yes, have_gcc42=no)
  791. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
  792. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
  793. #error
  794. #endif]), have_gcc43=yes, have_gcc43=no)
  795. save_CFLAGS="$CFLAGS"
  796. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  797. AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], []), have_shorten64_flag=yes,
  798. have_shorten64_flag=no)
  799. CFLAGS="$save_CFLAGS"
  800. case $host in
  801. *-*-openbsd*)
  802. # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default.
  803. # That's fine, except that the headers don't pass -Wredundant-decls.
  804. # Therefore, let's disable -Wsystem-headers when we're building
  805. # with maximal warnings on OpenBSD.
  806. CFLAGS="$CFLAGS -Wno-system-headers" ;;
  807. esac
  808. CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Wwrite-strings -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wbad-function-cast -Wswitch-enum"
  809. if test x$enable_gcc_warnings = xyes; then
  810. CFLAGS="$CFLAGS -Werror"
  811. fi
  812. # Disabled, so we can use mallinfo(): -Waggregate-return
  813. if test x$have_gcc4 = xyes ; then
  814. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  815. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  816. fi
  817. if test x$have_gcc42 = xyes ; then
  818. # These warnings break gcc 4.0.2 and work on gcc 4.2
  819. # XXXX020 Use -fstack-protector.
  820. # XXXX020 See if any of these work with earlier versions.
  821. CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wnormalized=id -Woverride-init -Wstrict-overflow=1 --param ssp-buffer-size=1"
  822. # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
  823. fi
  824. if test x$have_gcc43 = xyes ; then
  825. # These warnings break gcc 4.2 and work on gcc 4.3
  826. # XXXX020 See if any of these work with earlier versions.
  827. CFLAGS="$CFLAGS -Wextra -Warray-bounds"
  828. fi
  829. if test x$have_shorten64_flag = xyes ; then
  830. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  831. fi
  832. ##This will break the world on some 64-bit architectures
  833. # CFLAGS="$CFLAGS -Winline"
  834. fi
  835. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
  836. 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 src/Makefile doc/Makefile doc/spec/Makefile src/config/Makefile src/common/Makefile src/or/Makefile src/test/Makefile src/win32/Makefile src/tools/Makefile contrib/suse/Makefile contrib/suse/tor.sh])
  837. AC_OUTPUT
  838. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  839. ./contrib/updateVersions.pl
  840. fi