configure.in 40 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, 0.2.3.15-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. AC_ARG_ENABLE(static-tor,
  31. AS_HELP_STRING(--enable-static-tor, Create an entirely static Tor binary. Requires --with-openssl-dir and --with-libevent-dir and --with-zlib-dir))
  32. if test "$enable_static_tor" = "yes"; then
  33. enable_static_libevent="yes";
  34. enable_static_openssl="yes";
  35. enable_static_zlib="yes";
  36. CFLAGS="$CFLAGS -static"
  37. fi
  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(asciidoc,
  55. AS_HELP_STRING(--disable-asciidoc, don't use asciidoc (disables building of manpages)),
  56. [case "${enableval}" in
  57. yes) asciidoc=true ;;
  58. no) asciidoc=false ;;
  59. *) AC_MSG_ERROR(bad value for --disable-asciidoc) ;;
  60. esac], [asciidoc=true])
  61. # By default, we're not ready to ship a NAT-PMP aware Tor
  62. AC_ARG_ENABLE(nat-pmp,
  63. AS_HELP_STRING(--enable-nat-pmp, enable NAT-PMP support),
  64. [case "${enableval}" in
  65. yes) natpmp=true ;;
  66. no) natpmp=false ;;
  67. * ) AC_MSG_ERROR(bad value for --enable-nat-pmp) ;;
  68. esac], [natpmp=false])
  69. # By default, we're not ready to ship a UPnP aware Tor
  70. AC_ARG_ENABLE(upnp,
  71. AS_HELP_STRING(--enable-upnp, enable UPnP support),
  72. [case "${enableval}" in
  73. yes) upnp=true ;;
  74. no) upnp=false ;;
  75. * ) AC_MSG_ERROR(bad value for --enable-upnp) ;;
  76. esac], [upnp=false])
  77. AC_ARG_ENABLE(threads,
  78. AS_HELP_STRING(--disable-threads, disable multi-threading support))
  79. if test x$enable_threads = x; then
  80. case $host in
  81. *-*-solaris* )
  82. # Don't try multithreading on solaris -- cpuworkers seem to lock.
  83. AC_MSG_NOTICE([You are running Solaris; Sometimes threading makes
  84. cpu workers lock up here, so I will disable threads.])
  85. enable_threads="no";;
  86. *)
  87. enable_threads="yes";;
  88. esac
  89. fi
  90. if test "$enable_threads" = "yes"; then
  91. AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
  92. fi
  93. case $host in
  94. *-*-solaris* )
  95. AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
  96. ;;
  97. esac
  98. AC_ARG_ENABLE(gcc-warnings,
  99. AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
  100. AC_ARG_ENABLE(gcc-warnings-advisory,
  101. AS_HELP_STRING(--enable-gcc-warnings-advisory, [enable verbose warnings, excluding -Werror]))
  102. dnl Adam shostack suggests the following for Windows:
  103. dnl -D_FORTIFY_SOURCE=2 -fstack-protector-all
  104. dnl Others suggest '/gs /safeseh /nxcompat /dynamicbase' for non-gcc on Windows
  105. dnl This requires that we use gcc and that we add -O2 to the CFLAGS.
  106. AC_ARG_ENABLE(gcc-hardening,
  107. AS_HELP_STRING(--enable-gcc-hardening, enable compiler security checks),
  108. [if test x$enableval = xyes; then
  109. CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector-all"
  110. CFLAGS="$CFLAGS -fwrapv -fPIE -Wstack-protector"
  111. CFLAGS="$CFLAGS --param ssp-buffer-size=1"
  112. LDFLAGS="$LDFLAGS -pie"
  113. fi])
  114. dnl Linker hardening options
  115. dnl Currently these options are ELF specific - you can't use this with MacOSX
  116. AC_ARG_ENABLE(linker-hardening,
  117. AS_HELP_STRING(--enable-linker-hardening, enable linker security fixups),
  118. [if test x$enableval = xyes; then
  119. LDFLAGS="$LDFLAGS -z relro -z now"
  120. fi])
  121. AC_ARG_ENABLE(local-appdata,
  122. AS_HELP_STRING(--enable-local-appdata, default to host local application data paths on Windows))
  123. if test "$enable_local_appdata" = "yes"; then
  124. AC_DEFINE(ENABLE_LOCAL_APPDATA, 1,
  125. [Defined if we default to host local appdata paths on Windows])
  126. fi
  127. # Tor2web mode flag
  128. AC_ARG_ENABLE(tor2web-mode,
  129. AS_HELP_STRING(--enable-tor2web-mode, support tor2web non-anonymous mode),
  130. [if test x$enableval = xyes; then
  131. CFLAGS="$CFLAGS -D ENABLE_TOR2WEB_MODE=1"
  132. fi])
  133. AC_ARG_ENABLE(bufferevents,
  134. AS_HELP_STRING(--enable-bufferevents, use Libevent's buffered IO.))
  135. dnl check for the correct "ar" when cross-compiling
  136. AN_MAKEVAR([AR], [AC_PROG_AR])
  137. AN_PROGRAM([ar], [AC_PROG_AR])
  138. AC_DEFUN([AC_PROG_AR], [AC_CHECK_TOOL([AR], [ar], [ar])])
  139. AC_PROG_AR
  140. AC_PROG_CC
  141. AC_PROG_CPP
  142. AC_PROG_MAKE_SET
  143. AC_PROG_RANLIB
  144. dnl autoconf 2.59 appears not to support AC_PROG_SED
  145. AC_CHECK_PROG([SED],[sed],[sed],[/bin/false])
  146. dnl check for asciidoc and a2x
  147. AC_PATH_PROG([ASCIIDOC], [asciidoc], none)
  148. AC_PATH_PROG([A2X], [a2x], none)
  149. AM_CONDITIONAL(USE_ASCIIDOC, test x$asciidoc = xtrue)
  150. AM_CONDITIONAL(USE_FW_HELPER, test x$natpmp = xtrue || test x$upnp = xtrue)
  151. AM_CONDITIONAL(NAT_PMP, test x$natpmp = xtrue)
  152. AM_CONDITIONAL(MINIUPNPC, test x$upnp = xtrue)
  153. AM_PROG_CC_C_O
  154. ifdef([AC_C_FLEXIBLE_ARRAY_MEMBER], [
  155. AC_C_FLEXIBLE_ARRAY_MEMBER
  156. ], [
  157. dnl Maybe we've got an old autoconf...
  158. AC_CACHE_CHECK([for flexible array members],
  159. tor_cv_c_flexarray,
  160. [AC_COMPILE_IFELSE(
  161. AC_LANG_PROGRAM([
  162. struct abc { int a; char b[]; };
  163. ], [
  164. struct abc *def = malloc(sizeof(struct abc)+sizeof(char));
  165. def->b[0] = 33;
  166. ]),
  167. [tor_cv_c_flexarray=yes],
  168. [tor_cv_c_flexarray=no])])
  169. if test $tor_cv_flexarray = yes ; then
  170. AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [], [Define to nothing if C supports flexible array members, and to 1 if it does not.])
  171. else
  172. AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [1], [Define to nothing if C supports flexible array members, and to 1 if it does not.])
  173. fi
  174. ])
  175. AC_PATH_PROG([SHA1SUM], [sha1sum], none)
  176. AC_PATH_PROG([OPENSSL], [openssl], none)
  177. TORUSER=_tor
  178. AC_ARG_WITH(tor-user,
  179. [ --with-tor-user=NAME Specify username for tor daemon ],
  180. [
  181. TORUSER=$withval
  182. ]
  183. )
  184. AC_SUBST(TORUSER)
  185. TORGROUP=_tor
  186. AC_ARG_WITH(tor-group,
  187. [ --with-tor-group=NAME Specify group name for tor daemon ],
  188. [
  189. TORGROUP=$withval
  190. ]
  191. )
  192. AC_SUBST(TORGROUP)
  193. dnl If _WIN32 is defined and non-zero, we are building for win32
  194. AC_MSG_CHECKING([for win32])
  195. AC_RUN_IFELSE([AC_LANG_SOURCE([
  196. int main(int c, char **v) {
  197. #ifdef _WIN32
  198. #if _WIN32
  199. return 0;
  200. #else
  201. return 1;
  202. #endif
  203. #else
  204. return 2;
  205. #endif
  206. }])],
  207. bwin32=true; AC_MSG_RESULT([yes]),
  208. bwin32=false; AC_MSG_RESULT([no]),
  209. bwin32=cross; AC_MSG_RESULT([cross])
  210. )
  211. if test "$bwin32" = cross; then
  212. AC_MSG_CHECKING([for win32 (cross)])
  213. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  214. #ifdef _WIN32
  215. int main(int c, char **v) {return 0;}
  216. #else
  217. #error
  218. int main(int c, char **v) {return x(y);}
  219. #endif
  220. ])],
  221. bwin32=true; AC_MSG_RESULT([yes]),
  222. bwin32=false; AC_MSG_RESULT([no]))
  223. fi
  224. AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
  225. dnl Enable C99 when compiling with MIPSpro
  226. AC_MSG_CHECKING([for MIPSpro compiler])
  227. AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [
  228. #if (defined(__sgi) && defined(_COMPILER_VERSION))
  229. #error
  230. return x(y);
  231. #endif
  232. ])],
  233. bmipspro=false; AC_MSG_RESULT(no),
  234. bmipspro=true; AC_MSG_RESULT(yes))
  235. if test "$bmipspro" = true; then
  236. CFLAGS="$CFLAGS -c99"
  237. fi
  238. AC_C_BIGENDIAN
  239. AC_SEARCH_LIBS(socket, [socket network])
  240. AC_SEARCH_LIBS(gethostbyname, [nsl])
  241. AC_SEARCH_LIBS(dlopen, [dl])
  242. AC_SEARCH_LIBS(inet_aton, [resolv])
  243. saved_LIBS="$LIBS"
  244. AC_SEARCH_LIBS([clock_gettime], [rt])
  245. if test "$LIBS" != "$saved_LIBS"; then
  246. # Looks like we need -lrt for clock_gettime().
  247. have_rt=yes
  248. fi
  249. if test "$enable_threads" = "yes"; then
  250. AC_SEARCH_LIBS(pthread_create, [pthread])
  251. AC_SEARCH_LIBS(pthread_detach, [pthread])
  252. fi
  253. dnl -------------------------------------------------------------------
  254. dnl Check for functions before libevent, since libevent-1.2 apparently
  255. dnl exports strlcpy without defining it in a header.
  256. AC_CHECK_FUNCS(
  257. _NSGetEnviron \
  258. accept4 \
  259. clock_gettime \
  260. flock \
  261. ftime \
  262. getaddrinfo \
  263. getifaddrs \
  264. getrlimit \
  265. gettimeofday \
  266. gmtime_r \
  267. inet_aton \
  268. ioctl \
  269. localtime_r \
  270. lround \
  271. memmem \
  272. prctl \
  273. rint \
  274. socketpair \
  275. strlcat \
  276. strlcpy \
  277. strptime \
  278. strtok_r \
  279. strtoull \
  280. sysconf \
  281. uname \
  282. vasprintf \
  283. )
  284. using_custom_malloc=no
  285. if test x$enable_openbsd_malloc = xyes ; then
  286. AC_DEFINE(HAVE_MALLOC_GOOD_SIZE, 1, [Defined if we have the malloc_good_size function])
  287. using_custom_malloc=yes
  288. fi
  289. if test x$tcmalloc = xyes ; then
  290. using_custom_malloc=yes
  291. fi
  292. if test $using_custom_malloc = no ; then
  293. AC_CHECK_FUNCS(mallinfo malloc_good_size malloc_usable_size)
  294. fi
  295. if test "$enable_threads" = "yes"; then
  296. AC_CHECK_HEADERS(pthread.h)
  297. AC_CHECK_FUNCS(pthread_create)
  298. fi
  299. dnl ------------------------------------------------------
  300. dnl Where do you live, libevent? And how do we call you?
  301. if test "$bwin32" = true; then
  302. TOR_LIB_WS32=-lws2_32
  303. TOR_LIB_IPHLPAPI=-liphlpapi
  304. # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  305. # think it's actually necessary.
  306. TOR_LIB_GDI=-lgdi32
  307. else
  308. TOR_LIB_WS32=
  309. TOR_LIB_GDI=
  310. fi
  311. AC_SUBST(TOR_LIB_WS32)
  312. AC_SUBST(TOR_LIB_GDI)
  313. AC_SUBST(TOR_LIB_IPHLPAPI)
  314. dnl We need to do this before we try our disgusting hack below.
  315. AC_CHECK_HEADERS([sys/types.h])
  316. dnl This is a disgusting hack so we safely include older libevent headers.
  317. AC_CHECK_TYPE(u_int64_t, unsigned long long)
  318. AC_CHECK_TYPE(u_int32_t, unsigned long)
  319. AC_CHECK_TYPE(u_int16_t, unsigned short)
  320. AC_CHECK_TYPE(u_int8_t, unsigned char)
  321. tor_libevent_pkg_redhat="libevent"
  322. tor_libevent_pkg_debian="libevent-dev"
  323. tor_libevent_devpkg_redhat="libevent-devel"
  324. tor_libevent_devpkg_debian="libevent-dev"
  325. dnl On Gnu/Linux or any place we require it, we'll add librt to the Libevent
  326. dnl linking for static builds.
  327. STATIC_LIBEVENT_FLAGS=""
  328. if test "$enable_static_libevent" = "yes"; then
  329. if test "$have_rt" = yes; then
  330. STATIC_LIBEVENT_FLAGS=" -lrt "
  331. fi
  332. fi
  333. TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32], [
  334. #ifdef _WIN32
  335. #include <winsock2.h>
  336. #endif
  337. #include <stdlib.h>
  338. #include <sys/time.h>
  339. #include <sys/types.h>
  340. #include <event.h>], [
  341. #ifdef _WIN32
  342. #include <winsock2.h>
  343. #endif
  344. void exit(int); void *event_init(void);],
  345. [
  346. #ifdef _WIN32
  347. {WSADATA d; WSAStartup(0x101,&d); }
  348. #endif
  349. event_init(); exit(0);
  350. ], [--with-libevent-dir], [/opt/libevent])
  351. dnl Now check for particular libevent functions.
  352. save_LIBS="$LIBS"
  353. save_LDFLAGS="$LDFLAGS"
  354. save_CPPFLAGS="$CPPFLAGS"
  355. LIBS="-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32 $LIBS"
  356. LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
  357. CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
  358. AC_CHECK_FUNCS(event_get_version event_get_version_number event_get_method event_set_log_callback evdns_set_outgoing_bind_address event_base_loopexit)
  359. AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
  360. [#include <event.h>
  361. ])
  362. AC_CHECK_HEADERS(event2/event.h event2/dns.h event2/bufferevent_ssl.h)
  363. LIBS="$save_LIBS"
  364. LDFLAGS="$save_LDFLAGS"
  365. CPPFLAGS="$save_CPPFLAGS"
  366. AM_CONDITIONAL(USE_EXTERNAL_EVDNS, test x$ac_cv_header_event2_dns_h = xyes)
  367. if test "$enable_static_libevent" = "yes"; then
  368. if test "$tor_cv_library_libevent_dir" = "(system)"; then
  369. AC_MSG_ERROR("You must specify an explicit --with-libevent-dir=x option when using --enable-static-libevent")
  370. else
  371. TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent.a $STATIC_LIBEVENT_FLAGS"
  372. fi
  373. else
  374. TOR_LIBEVENT_LIBS="-levent"
  375. fi
  376. dnl This isn't the best test for Libevent 2.0.3-alpha. Once it's released,
  377. dnl we can do much better.
  378. if test "$enable_bufferevents" = "yes" ; then
  379. if test "$ac_cv_header_event2_bufferevent_ssl_h" != "yes" ; then
  380. AC_MSG_ERROR([You've asked for bufferevent support, but you're using a version of Libevent without SSL support. This won't work. We need Libevent 2.0.8-rc or later, and you don't seem to even have Libevent 2.0.3-alpha.])
  381. else
  382. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent"
  383. # Check for the right version. First see if version detection works.
  384. AC_MSG_CHECKING([whether we can detect the Libevent version])
  385. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  386. #include <event2/event.h>
  387. #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 10
  388. #error
  389. int x = y(zz);
  390. #else
  391. int x = 1;
  392. #endif
  393. ])], [event_version_number_works=yes; AC_MSG_RESULT([yes]) ],
  394. [event_version_number_works=no; AC_MSG_RESULT([no])])
  395. if test "$event_version_number_works" != 'yes'; then
  396. AC_MSG_WARN([Version detection on Libevent seems broken. Your Libevent installation is probably screwed up or very old.])
  397. else
  398. AC_MSG_CHECKING([whether Libevent is new enough for bufferevents])
  399. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  400. #include <event2/event.h>
  401. #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 0x02000d00
  402. #error
  403. int x = y(zz);
  404. #else
  405. int x = 1;
  406. #endif
  407. ])], [ AC_MSG_RESULT([yes]) ],
  408. [ AC_MSG_RESULT([no])
  409. AC_MSG_ERROR([Libevent does not seem new enough to support bufferevents. We require 2.0.13-stable or later]) ] )
  410. fi
  411. fi
  412. fi
  413. LIBS="$save_LIBS"
  414. LDFLAGS="$save_LDFLAGS"
  415. CPPFLAGS="$save_CPPFLAGS"
  416. AM_CONDITIONAL(USE_BUFFEREVENTS, test "$enable_bufferevents" = "yes")
  417. if test "$enable_bufferevents" = "yes"; then
  418. AC_DEFINE(USE_BUFFEREVENTS, 1, [Defined if we're going to use Libevent's buffered IO API])
  419. if test "$enable_static_libevent" = "yes"; then
  420. TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent_openssl.a $TOR_LIBEVENT_LIBS"
  421. else
  422. TOR_LIBEVENT_LIBS="-levent_openssl $TOR_LIBEVENT_LIBS"
  423. fi
  424. fi
  425. AC_SUBST(TOR_LIBEVENT_LIBS)
  426. dnl ------------------------------------------------------
  427. dnl Where do you live, libm?
  428. dnl On some platforms (Haiku/BeOS) the math library is
  429. dnl part of libroot. In which case don't link against lm
  430. TOR_LIB_MATH=""
  431. save_LIBS="$LIBS"
  432. AC_SEARCH_LIBS(pow, [m], , AC_MSG_ERROR([Could not find pow in libm or libc.]))
  433. if test "$ac_cv_search_pow" != "none required"; then
  434. TOR_LIB_MATH="$ac_cv_search_pow"
  435. fi
  436. LIBS="$save_LIBS"
  437. AC_SUBST(TOR_LIB_MATH)
  438. dnl ------------------------------------------------------
  439. dnl Where do you live, openssl? And how do we call you?
  440. tor_openssl_pkg_redhat="openssl"
  441. tor_openssl_pkg_debian="libssl"
  442. tor_openssl_devpkg_redhat="openssl-devel"
  443. tor_openssl_devpkg_debian="libssl-dev"
  444. ALT_openssl_WITHVAL=""
  445. AC_ARG_WITH(ssl-dir,
  446. [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
  447. [
  448. if test "x$withval" != xno && test "x$withval" != "x" ; then
  449. ALT_openssl_WITHVAL="$withval"
  450. fi
  451. ])
  452. TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
  453. [#include <openssl/rand.h>],
  454. [void RAND_add(const void *buf, int num, double entropy);],
  455. [RAND_add((void*)0,0,0); exit(0);], [],
  456. [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
  457. dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
  458. echo "tor_cv_library_openssl_dir is $tor_cv_library_openssl_dir"
  459. if test "$enable_static_openssl" = "yes"; then
  460. if test "$tor_cv_library_openssl_dir" = "(system)"; then
  461. AC_MSG_ERROR("You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl")
  462. else
  463. TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a"
  464. fi
  465. else
  466. TOR_OPENSSL_LIBS="-lssl -lcrypto"
  467. fi
  468. AC_SUBST(TOR_OPENSSL_LIBS)
  469. dnl ------------------------------------------------------
  470. dnl Where do you live, zlib? And how do we call you?
  471. tor_zlib_pkg_redhat="zlib"
  472. tor_zlib_pkg_debian="zlib1g"
  473. tor_zlib_devpkg_redhat="zlib-devel"
  474. tor_zlib_devpkg_debian="zlib1g-dev"
  475. TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
  476. [#include <zlib.h>],
  477. [const char * zlibVersion(void);],
  478. [zlibVersion(); exit(0);], [--with-zlib-dir],
  479. [/opt/zlib])
  480. if test "$enable_static_zlib" = "yes"; then
  481. if test "$tor_cv_library_zlib_dir" = "(system)"; then
  482. AC_MSG_ERROR("You must specify an explicit --with-zlib-dir=x option when
  483. using --enable-static-zlib")
  484. else
  485. TOR_ZLIB_LIBS="$TOR_LIBDIR_zlib/libz.a"
  486. echo "$TOR_LIBDIR_zlib/libz.a"
  487. fi
  488. else
  489. TOR_ZLIB_LIBS="-lz"
  490. fi
  491. AC_SUBST(TOR_ZLIB_LIBS)
  492. dnl Make sure to enable support for large off_t if available.
  493. dnl ------------------------------------------------------
  494. dnl Where do you live, libnatpmp? And how do we call you?
  495. dnl There are no packages for Debian or Redhat as of this patch
  496. if test "$natpmp" = "true"; then
  497. AC_DEFINE(NAT_PMP, 1, [Define to 1 if we are building with nat-pmp.])
  498. TOR_SEARCH_LIBRARY(libnatpmp, $trylibnatpmpdir, [-lnatpmp $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
  499. [#include <natpmp.h>],
  500. [#ifdef _WIN32
  501. #define STATICLIB
  502. #endif
  503. #include <natpmp.h>],
  504. [ int r;
  505. natpmp_t natpmp;
  506. natpmpresp_t response;
  507. r = initnatpmp(&natpmp, 0, 0);],
  508. [printf("initnatpmp() returned %d (%s)\n", r, r?"FAILED":"SUCCESS");
  509. exit(0);],
  510. [--with-libnatpmp-dir],
  511. [/usr/lib/])
  512. fi
  513. dnl ------------------------------------------------------
  514. dnl Where do you live, libminiupnpc? And how do we call you?
  515. dnl There are no packages for Debian or Redhat as of this patch
  516. if test "$upnp" = "true"; then
  517. AC_DEFINE(MINIUPNPC, 1, [Define to 1 if we are building with UPnP.])
  518. dnl Before we call TOR_SEARCH_LIBRARY we'll do a quick compile test
  519. dnl to see if we have miniupnpc-1.5 or -1.6
  520. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <miniupnpc/miniupnpc.h>],
  521. [upnpDiscover(1, 0, 0, 0);exit(0);])],[miniupnpc15="true"],[miniupnpc15="false"])
  522. if test "$miniupnpc15" = "true" ; then
  523. AC_DEFINE([MINIUPNPC15],[1],[libminiupnpc version 1.5 found])
  524. TOR_SEARCH_LIBRARY(libminiupnpc, $trylibminiupnpcdir, [-lminiupnpc $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
  525. [#include <miniupnpc/miniwget.h>
  526. #include <miniupnpc/miniupnpc.h>
  527. #include <miniupnpc/upnpcommands.h>],
  528. [void upnpDiscover(int delay, const char * multicastif,
  529. const char * minissdpdsock, int sameport);],
  530. [upnpDiscover(1, 0, 0, 0); exit(0);],
  531. [--with-libminiupnpc-dir],
  532. [/usr/lib/])
  533. else
  534. TOR_SEARCH_LIBRARY(libminiupnpc, $trylibminiupnpcdir, [-lminiupnpc $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
  535. [#include <miniupnpc/miniwget.h>
  536. #include <miniupnpc/miniupnpc.h>
  537. #include <miniupnpc/upnpcommands.h>],
  538. [void upnpDiscover(int delay, const char * multicastif,
  539. const char * minissdpdsock, int sameport, int ipv6, int * error);],
  540. [upnpDiscover(1, 0, 0, 0, 0, 0); exit(0);],
  541. [--with-libminiupnpc-dir],
  542. [/usr/lib/])
  543. fi
  544. fi
  545. AC_SYS_LARGEFILE
  546. AC_CHECK_HEADERS(
  547. assert.h \
  548. errno.h \
  549. fcntl.h \
  550. signal.h \
  551. string.h \
  552. sys/fcntl.h \
  553. sys/stat.h \
  554. sys/time.h \
  555. sys/types.h \
  556. time.h \
  557. unistd.h
  558. , , 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.))
  559. dnl These headers are not essential
  560. AC_CHECK_HEADERS(
  561. arpa/inet.h \
  562. crt_externs.h \
  563. grp.h \
  564. ifaddrs.h \
  565. inttypes.h \
  566. limits.h \
  567. linux/types.h \
  568. machine/limits.h \
  569. malloc.h \
  570. malloc/malloc.h \
  571. malloc_np.h \
  572. netdb.h \
  573. netinet/in.h \
  574. netinet/in6.h \
  575. pwd.h \
  576. stdint.h \
  577. sys/file.h \
  578. sys/ioctl.h \
  579. sys/limits.h \
  580. sys/mman.h \
  581. sys/param.h \
  582. sys/prctl.h \
  583. sys/resource.h \
  584. sys/socket.h \
  585. sys/syslimits.h \
  586. sys/time.h \
  587. sys/types.h \
  588. sys/un.h \
  589. sys/utime.h \
  590. sys/wait.h \
  591. syslog.h \
  592. utime.h
  593. )
  594. TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
  595. [#ifdef HAVE_MALLOC_H
  596. #include <malloc.h>
  597. #endif
  598. #ifdef HAVE_MALLOC_MALLOC_H
  599. #include <malloc/malloc.h>
  600. #endif])
  601. AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
  602. [#ifdef HAVE_SYS_TYPES_H
  603. #include <sys/types.h>
  604. #endif
  605. #ifdef HAVE_SYS_SOCKET_H
  606. #include <sys/socket.h>
  607. #endif])
  608. AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
  609. [#ifdef HAVE_SYS_TYPES_H
  610. #include <sys/types.h>
  611. #endif
  612. #ifdef HAVE_SYS_SOCKET_H
  613. #include <sys/socket.h>
  614. #endif
  615. #ifdef HAVE_NET_IF_H
  616. #include <net/if.h>
  617. #endif])
  618. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  619. linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
  620. [#ifdef HAVE_SYS_TYPES_H
  621. #include <sys/types.h>
  622. #endif
  623. #ifdef HAVE_SYS_SOCKET_H
  624. #include <sys/socket.h>
  625. #endif
  626. #ifdef HAVE_LIMITS_H
  627. #include <limits.h>
  628. #endif
  629. #ifdef HAVE_LINUX_TYPES_H
  630. #include <linux/types.h>
  631. #endif
  632. #ifdef HAVE_NETINET_IN6_H
  633. #include <netinet/in6.h>
  634. #endif
  635. #ifdef HAVE_NETINET_IN_H
  636. #include <netinet/in.h>
  637. #endif])
  638. if test x$transparent = xtrue ; then
  639. transparent_ok=0
  640. if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
  641. transparent_ok=1
  642. fi
  643. if test x$linux_netfilter_ipv4 = x1 ; then
  644. transparent_ok=1
  645. fi
  646. if test x$transparent_ok = x1 ; then
  647. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  648. case $host in
  649. *-*-openbsd*)
  650. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  651. esac
  652. else
  653. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  654. fi
  655. fi
  656. AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
  657. [#ifdef HAVE_SYS_TYPES_H
  658. #include <sys/types.h>
  659. #endif
  660. #ifdef HAVE_SYS_TIME_H
  661. #include <sys/time.h>
  662. #endif])
  663. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  664. dnl Watch out.
  665. AC_CHECK_SIZEOF(int8_t)
  666. AC_CHECK_SIZEOF(int16_t)
  667. AC_CHECK_SIZEOF(int32_t)
  668. AC_CHECK_SIZEOF(int64_t)
  669. AC_CHECK_SIZEOF(uint8_t)
  670. AC_CHECK_SIZEOF(uint16_t)
  671. AC_CHECK_SIZEOF(uint32_t)
  672. AC_CHECK_SIZEOF(uint64_t)
  673. AC_CHECK_SIZEOF(intptr_t)
  674. AC_CHECK_SIZEOF(uintptr_t)
  675. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  676. AC_CHECK_SIZEOF(char)
  677. AC_CHECK_SIZEOF(short)
  678. AC_CHECK_SIZEOF(int)
  679. AC_CHECK_SIZEOF(long)
  680. AC_CHECK_SIZEOF(long long)
  681. AC_CHECK_SIZEOF(__int64)
  682. AC_CHECK_SIZEOF(void *)
  683. AC_CHECK_SIZEOF(time_t)
  684. AC_CHECK_SIZEOF(size_t)
  685. AC_CHECK_TYPES([uint, u_char, ssize_t])
  686. dnl used to include sockaddr_storage, but everybody has that.
  687. AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
  688. [#ifdef HAVE_SYS_TYPES_H
  689. #include <sys/types.h>
  690. #endif
  691. #ifdef HAVE_NETINET_IN_H
  692. #include <netinet/in.h>
  693. #endif
  694. #ifdef HAVE_NETINET_IN6_H
  695. #include <netinet/in6.h>
  696. #endif
  697. #ifdef HAVE_SYS_SOCKET_H
  698. #include <sys/socket.h>
  699. #endif
  700. #ifdef _WIN32
  701. #define WIN32_WINNT 0x400
  702. #define _WIN32_WINNT 0x400
  703. #define WIN32_LEAN_AND_MEAN
  704. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  705. #include <winsock.h>
  706. #else
  707. #include <winsock2.h>
  708. #include <ws2tcpip.h>
  709. #endif
  710. #endif
  711. ])
  712. AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
  713. [#ifdef HAVE_SYS_TYPES_H
  714. #include <sys/types.h>
  715. #endif
  716. #ifdef HAVE_NETINET_IN_H
  717. #include <netinet/in.h>
  718. #endif
  719. #ifdef HAVE_NETINET_IN6_H
  720. #include <netinet/in6.h>
  721. #endif
  722. #ifdef HAVE_SYS_SOCKET_H
  723. #include <sys/socket.h>
  724. #endif
  725. #ifdef _WIN32
  726. #define WIN32_WINNT 0x400
  727. #define _WIN32_WINNT 0x400
  728. #define WIN32_LEAN_AND_MEAN
  729. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  730. #include <winsock.h>
  731. #else
  732. #include <winsock2.h>
  733. #include <ws2tcpip.h>
  734. #endif
  735. #endif
  736. ])
  737. AC_CHECK_TYPES([rlim_t], , ,
  738. [#ifdef HAVE_SYS_TYPES_H
  739. #include <sys/types.h>
  740. #endif
  741. #ifdef HAVE_SYS_TIME_H
  742. #include <sys/time.h>
  743. #endif
  744. #ifdef HAVE_SYS_RESOURCE_H
  745. #include <sys/resource.h>
  746. #endif
  747. ])
  748. AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
  749. AC_RUN_IFELSE([AC_LANG_SOURCE([
  750. #ifdef HAVE_SYS_TYPES_H
  751. #include <sys/types.h>
  752. #endif
  753. #ifdef HAVE_SYS_TIME_H
  754. #include <sys/time.h>
  755. #endif
  756. #ifdef HAVE_TIME_H
  757. #include <time.h>
  758. #endif
  759. int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }])],
  760. tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes, tor_cv_time_t_signed=cross)
  761. ])
  762. if test "$tor_cv_time_t_signed" = cross; then
  763. AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  764. fi
  765. if test "$tor_cv_time_t_signed" != no; then
  766. AC_DEFINE([TIME_T_IS_SIGNED], 1,
  767. [Define to 1 iff time_t is signed])
  768. fi
  769. AC_CACHE_CHECK([whether size_t is signed], tor_cv_size_t_signed, [
  770. AC_RUN_IFELSE([AC_LANG_SOURCE([
  771. #ifdef HAVE_SYS_TYPES_H
  772. #include <sys/types.h>
  773. #endif
  774. int main(int c, char**v) { if (((size_t)-1)<0) return 1; else return 0; }])],
  775. tor_cv_size_t_signed=no, tor_cv_size_t_signed=yes, tor_cv_size_t_signed=cross)
  776. ])
  777. if test "$tor_cv_size_t_signed" = cross; then
  778. AC_MSG_NOTICE([Cross compiling: assuming that size_t is not signed.])
  779. fi
  780. if test "$tor_cv_size_t_signed" = yes; then
  781. AC_MSG_ERROR([You have a signed size_t; that's grossly nonconformant.])
  782. fi
  783. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  784. #ifdef HAVE_SYS_SOCKET_H
  785. #include <sys/socket.h>
  786. #endif
  787. ])
  788. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  789. AC_CHECK_SIZEOF(cell_t)
  790. # Now make sure that NULL can be represented as zero bytes.
  791. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  792. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  793. [[#include <stdlib.h>
  794. #include <string.h>
  795. #include <stdio.h>
  796. #ifdef HAVE_STDDEF_H
  797. #include <stddef.h>
  798. #endif
  799. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  800. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  801. [tor_cv_null_is_zero=yes],
  802. [tor_cv_null_is_zero=no],
  803. [tor_cv_null_is_zero=cross])])
  804. if test "$tor_cv_null_is_zero" = cross ; then
  805. # Cross-compiling; let's hope that the target isn't raving mad.
  806. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  807. fi
  808. if test "$tor_cv_null_is_zero" != no; then
  809. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  810. [Define to 1 iff memset(0) sets pointers to NULL])
  811. fi
  812. # And what happens when we malloc zero?
  813. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  814. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  815. [[#include <stdlib.h>
  816. #include <string.h>
  817. #include <stdio.h>
  818. #ifdef HAVE_STDDEF_H
  819. #include <stddef.h>
  820. #endif
  821. int main () { return malloc(0)?0:1; }]])],
  822. [tor_cv_malloc_zero_works=yes],
  823. [tor_cv_malloc_zero_works=no],
  824. [tor_cv_malloc_zero_works=cross])])
  825. if test "$tor_cv_malloc_zero_works" = cross; then
  826. # Cross-compiling; let's hope that the target isn't raving mad.
  827. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  828. fi
  829. if test "$tor_cv_malloc_zero_works" = yes; then
  830. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  831. [Define to 1 iff malloc(0) returns a pointer])
  832. fi
  833. # whether we seem to be in a 2s-complement world.
  834. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  835. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  836. [[int main () { int problem = ((-99) != (~99)+1);
  837. return problem ? 1 : 0; }]])],
  838. [tor_cv_twos_complement=yes],
  839. [tor_cv_twos_complement=no],
  840. [tor_cv_twos_complement=cross])])
  841. if test "$tor_cv_twos_complement" = cross ; then
  842. # Cross-compiling; let's hope that the target isn't raving mad.
  843. AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
  844. fi
  845. if test "$tor_cv_twos_complement" != no ; then
  846. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  847. [Define to 1 iff we represent negative integers with two's complement])
  848. fi
  849. # What does shifting a negative value do?
  850. AC_CACHE_CHECK([whether right-shift on negative values does sign-extension], tor_cv_sign_extend,
  851. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  852. [[int main () { int okay = (-60 >> 8) == -1; return okay ? 0 : 1; }]])],
  853. [tor_cv_sign_extend=yes],
  854. [tor_cv_sign_extend=no],
  855. [tor_cv_sign_extend=cross])])
  856. if test "$tor_cv_sign_extend" = cross ; then
  857. # Cross-compiling; let's hope that the target isn't raving mad.
  858. AC_MSG_NOTICE([Cross-compiling: we'll assume that right-shifting negative integers causes sign-extension])
  859. fi
  860. if test "$tor_cv_sign_extend" != no ; then
  861. AC_DEFINE([RSHIFT_DOES_SIGN_EXTEND], 1,
  862. [Define to 1 iff right-shifting a negative value performs sign-extension])
  863. fi
  864. # Whether we should use the dmalloc memory allocation debugging library.
  865. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  866. AC_ARG_WITH(dmalloc,
  867. [ --with-dmalloc Use debug memory allocation library. ],
  868. [if [[ "$withval" = "yes" ]]; then
  869. dmalloc=1
  870. AC_MSG_RESULT(yes)
  871. else
  872. dmalloc=1
  873. AC_MSG_RESULT(no)
  874. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  875. )
  876. if [[ $dmalloc -eq 1 ]]; then
  877. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  878. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  879. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  880. AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
  881. AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
  882. fi
  883. AC_ARG_WITH(tcmalloc,
  884. [ --with-tcmalloc Use tcmalloc memory allocation library. ],
  885. [ tcmalloc=yes ], [ tcmalloc=no ])
  886. if test x$tcmalloc = xyes ; then
  887. LDFLAGS="-ltcmalloc $LDFLAGS"
  888. fi
  889. # By default, we're going to assume we don't have mlockall()
  890. # bionic and other platforms have various broken mlockall subsystems.
  891. # Some systems don't have a working mlockall, some aren't linkable,
  892. # and some have it but don't declare it.
  893. AC_CHECK_FUNCS(mlockall)
  894. AC_CHECK_DECLS([mlockall], , , [
  895. #ifdef HAVE_SYS_MMAN_H
  896. #include <sys/mman.h>
  897. #endif])
  898. # Allow user to specify an alternate syslog facility
  899. AC_ARG_WITH(syslog-facility,
  900. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  901. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  902. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  903. AC_SUBST(LOGFACILITY)
  904. # Check if we have getresuid and getresgid
  905. AC_CHECK_FUNCS(getresuid getresgid)
  906. # Check for gethostbyname_r in all its glorious incompatible versions.
  907. # (This logic is based on that in Python's configure.in)
  908. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  909. [Define this if you have any gethostbyname_r()])
  910. AC_CHECK_FUNC(gethostbyname_r, [
  911. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  912. OLD_CFLAGS=$CFLAGS
  913. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  914. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
  915. #include <netdb.h>
  916. ], [[
  917. char *cp1, *cp2;
  918. struct hostent *h1, *h2;
  919. int i1, i2;
  920. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  921. ]])],[
  922. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  923. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  924. [Define this if gethostbyname_r takes 6 arguments])
  925. AC_MSG_RESULT(6)
  926. ], [
  927. AC_TRY_COMPILE([
  928. #include <netdb.h>
  929. ], [
  930. char *cp1, *cp2;
  931. struct hostent *h1;
  932. int i1, i2;
  933. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  934. ], [
  935. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  936. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  937. [Define this if gethostbyname_r takes 5 arguments])
  938. AC_MSG_RESULT(5)
  939. ], [
  940. AC_TRY_COMPILE([
  941. #include <netdb.h>
  942. ], [
  943. char *cp1;
  944. struct hostent *h1;
  945. struct hostent_data hd;
  946. (void) gethostbyname_r(cp1,h1,&hd);
  947. ], [
  948. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  949. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  950. [Define this if gethostbyname_r takes 3 arguments])
  951. AC_MSG_RESULT(3)
  952. ], [
  953. AC_MSG_RESULT(0)
  954. ])
  955. ])
  956. ])
  957. CFLAGS=$OLD_CFLAGS
  958. ])
  959. AC_CACHE_CHECK([whether the C compiler supports __func__],
  960. tor_cv_have_func_macro,
  961. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  962. #include <stdio.h>
  963. int main(int c, char **v) { puts(__func__); }])],
  964. tor_cv_have_func_macro=yes,
  965. tor_cv_have_func_macro=no))
  966. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  967. tor_cv_have_FUNC_macro,
  968. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  969. #include <stdio.h>
  970. int main(int c, char **v) { puts(__FUNC__); }])],
  971. tor_cv_have_FUNC_macro=yes,
  972. tor_cv_have_FUNC_macro=no))
  973. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  974. tor_cv_have_FUNCTION_macro,
  975. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  976. #include <stdio.h>
  977. int main(int c, char **v) { puts(__FUNCTION__); }])],
  978. tor_cv_have_FUNCTION_macro=yes,
  979. tor_cv_have_FUNCTION_macro=no))
  980. AC_CACHE_CHECK([whether we have extern char **environ already declared],
  981. tor_cv_have_environ_declared,
  982. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  983. /* We define _GNU_SOURCE here because it is also defined in compat.c.
  984. * Without it environ doesn't get declared. */
  985. #define _GNU_SOURCE
  986. #ifdef HAVE_UNISTD_H
  987. #include <unistd.h>
  988. #endif
  989. #include <stdlib.h>
  990. int main(int c, char **v) { char **t = environ; }])],
  991. tor_cv_have_environ_declared=yes,
  992. tor_cv_have_environ_declared=no))
  993. if test "$tor_cv_have_func_macro" = 'yes'; then
  994. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  995. fi
  996. if test "$tor_cv_have_FUNC_macro" = 'yes'; then
  997. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  998. fi
  999. if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
  1000. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  1001. [Defined if the compiler supports __FUNCTION__])
  1002. fi
  1003. if test "$tor_cv_have_environ_declared" = 'yes'; then
  1004. AC_DEFINE(HAVE_EXTERN_ENVIRON_DECLARED, 1,
  1005. [Defined if we have extern char **environ already declared])
  1006. fi
  1007. # $prefix stores the value of the --prefix command line option, or
  1008. # NONE if the option wasn't set. In the case that it wasn't set, make
  1009. # it be the default, so that we can use it to expand directories now.
  1010. if test "x$prefix" = "xNONE"; then
  1011. prefix=$ac_default_prefix
  1012. fi
  1013. # and similarly for $exec_prefix
  1014. if test "x$exec_prefix" = "xNONE"; then
  1015. exec_prefix=$prefix
  1016. fi
  1017. if test "x$BUILDDIR" = "x"; then
  1018. BUILDDIR=`pwd`
  1019. fi
  1020. AC_SUBST(BUILDDIR)
  1021. AH_TEMPLATE([BUILDDIR],[tor's build directory])
  1022. AC_DEFINE_UNQUOTED(BUILDDIR,"$BUILDDIR")
  1023. if test "x$CONFDIR" = "x"; then
  1024. CONFDIR=`eval echo $sysconfdir/tor`
  1025. fi
  1026. AC_SUBST(CONFDIR)
  1027. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  1028. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  1029. BINDIR=`eval echo $bindir`
  1030. AC_SUBST(BINDIR)
  1031. LOCALSTATEDIR=`eval echo $localstatedir`
  1032. AC_SUBST(LOCALSTATEDIR)
  1033. if test "$bwin32" = true; then
  1034. # Test if the linker supports the --nxcompat and --dynamicbase options
  1035. # for Windows
  1036. save_LDFLAGS="$LDFLAGS"
  1037. LDFLAGS="-Wl,--nxcompat -Wl,--dynamicbase"
  1038. AC_MSG_CHECKING([whether the linker supports DllCharacteristics])
  1039. AC_LINK_IFELSE([AC_LANG_PROGRAM([])],
  1040. [AC_MSG_RESULT([yes])]
  1041. [save_LDFLAGS="$save_LDFLAGS $LDFLAGS"],
  1042. [AC_MSG_RESULT([no])]
  1043. )
  1044. LDFLAGS="$save_LDFLAGS"
  1045. fi
  1046. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  1047. # than autoconf's macros like.
  1048. if test "$GCC" = yes; then
  1049. # Disable GCC's strict aliasing checks. They are an hours-to-debug
  1050. # accident waiting to happen.
  1051. CFLAGS="$CFLAGS -Wall -fno-strict-aliasing"
  1052. else
  1053. # Autoconf sets -g -O2 by default. Override optimization level
  1054. # for non-gcc compilers
  1055. CFLAGS="$CFLAGS -O"
  1056. enable_gcc_warnings=no
  1057. enable_gcc_warnings_advisory=no
  1058. fi
  1059. # OS X Lion started deprecating the system openssl. Let's just disable
  1060. # all deprecation warnings on OS X. Also, to potentially make the binary
  1061. # a little smaller, let's enable dead_strip.
  1062. case "$host_os" in
  1063. darwin*)
  1064. CFLAGS="$CFLAGS -Wno-deprecated-declarations"
  1065. LDFLAGS="$LDFLAGS -dead_strip" ;;
  1066. esac
  1067. # Add some more warnings which we use in development but not in the
  1068. # released versions. (Some relevant gcc versions can't handle these.)
  1069. if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
  1070. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1071. #if !defined(__GNUC__) || (__GNUC__ < 4)
  1072. #error
  1073. #endif])], have_gcc4=yes, have_gcc4=no)
  1074. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1075. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  1076. #error
  1077. #endif])], have_gcc42=yes, have_gcc42=no)
  1078. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1079. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
  1080. #error
  1081. #endif])], have_gcc43=yes, have_gcc43=no)
  1082. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1083. #if !defined(__clang__)
  1084. #error
  1085. #endif])], have_clang=yes, have_clang=no)
  1086. save_CFLAGS="$CFLAGS"
  1087. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  1088. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], have_shorten64_flag=yes,
  1089. have_shorten64_flag=no)
  1090. CFLAGS="$save_CFLAGS"
  1091. case $host in
  1092. *-*-openbsd*)
  1093. # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default.
  1094. # That's fine, except that the headers don't pass -Wredundant-decls.
  1095. # Therefore, let's disable -Wsystem-headers when we're building
  1096. # with maximal warnings on OpenBSD.
  1097. CFLAGS="$CFLAGS -Wno-system-headers" ;;
  1098. esac
  1099. CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith"
  1100. CFLAGS="$CFLAGS -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings"
  1101. CFLAGS="$CFLAGS -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2"
  1102. CFLAGS="$CFLAGS -Wwrite-strings -Wmissing-declarations -Wredundant-decls"
  1103. CFLAGS="$CFLAGS -Wnested-externs -Wbad-function-cast -Wswitch-enum"
  1104. if test x$enable_gcc_warnings = xyes; then
  1105. CFLAGS="$CFLAGS -Werror"
  1106. fi
  1107. # Disabled, so we can use mallinfo(): -Waggregate-return
  1108. if test x$have_gcc4 = xyes ; then
  1109. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  1110. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  1111. fi
  1112. if test x$have_gcc42 = xyes ; then
  1113. # These warnings break gcc 4.0.2 and work on gcc 4.2
  1114. # XXXX020 See if any of these work with earlier versions.
  1115. CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wstrict-overflow=1"
  1116. # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
  1117. fi
  1118. if test x$have_gcc42 = xyes && test x$have_clang = xno; then
  1119. # These warnings break gcc 4.0.2 and clang, but work on gcc 4.2
  1120. CFLAGS="$CFLAGS -Wnormalized=id -Woverride-init"
  1121. fi
  1122. if test x$have_gcc43 = xyes ; then
  1123. # These warnings break gcc 4.2 and work on gcc 4.3
  1124. # XXXX020 See if any of these work with earlier versions.
  1125. CFLAGS="$CFLAGS -Wextra -Warray-bounds"
  1126. fi
  1127. if test x$have_shorten64_flag = xyes ; then
  1128. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  1129. fi
  1130. ##This will break the world on some 64-bit architectures
  1131. # CFLAGS="$CFLAGS -Winline"
  1132. fi
  1133. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
  1134. AC_CONFIG_FILES([
  1135. Doxyfile
  1136. Makefile
  1137. contrib/Makefile
  1138. contrib/suse/Makefile
  1139. contrib/suse/tor.sh
  1140. contrib/tor.logrotate
  1141. contrib/tor.sh
  1142. contrib/torctl
  1143. contrib/torify
  1144. doc/Makefile
  1145. src/Makefile
  1146. src/common/Makefile
  1147. src/config/Makefile
  1148. src/config/torrc.sample
  1149. src/or/Makefile
  1150. src/test/Makefile
  1151. src/tools/Makefile
  1152. src/tools/tor-fw-helper/Makefile
  1153. src/win32/Makefile
  1154. tor.spec
  1155. ])
  1156. AC_OUTPUT
  1157. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  1158. ./contrib/updateVersions.pl
  1159. fi