configure.in 41 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) 2007-2012, The Tor Project, Inc.
  4. dnl See LICENSE for licensing information
  5. AC_INIT
  6. AM_INIT_AUTOMAKE(tor, 0.2.3.18-rc-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 $host in
  94. *-*-solaris* )
  95. AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
  96. ;;
  97. esac
  98. AC_ARG_ENABLE(gcc-warnings,
  99. AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
  100. AC_ARG_ENABLE(gcc-warnings-advisory,
  101. AS_HELP_STRING(--enable-gcc-warnings-advisory, [enable verbose warnings, excluding -Werror]))
  102. dnl Adam shostack suggests the following for Windows:
  103. dnl -D_FORTIFY_SOURCE=2 -fstack-protector-all
  104. dnl Others suggest '/gs /safeseh /nxcompat /dynamicbase' for non-gcc on Windows
  105. dnl This requires that we use gcc and that we add -O2 to the CFLAGS.
  106. AC_ARG_ENABLE(gcc-hardening,
  107. AS_HELP_STRING(--disable-gcc-hardening, disable compiler security checks))
  108. dnl Linker hardening options
  109. dnl Currently these options are ELF specific - you can't use this with MacOSX
  110. AC_ARG_ENABLE(linker-hardening,
  111. AS_HELP_STRING(--disable-linker-hardening, disable linker security fixups))
  112. AC_ARG_ENABLE(local-appdata,
  113. AS_HELP_STRING(--enable-local-appdata, default to host local application data paths on Windows))
  114. if test "$enable_local_appdata" = "yes"; then
  115. AC_DEFINE(ENABLE_LOCAL_APPDATA, 1,
  116. [Defined if we default to host local appdata paths on Windows])
  117. fi
  118. # Tor2web mode flag
  119. AC_ARG_ENABLE(tor2web-mode,
  120. AS_HELP_STRING(--enable-tor2web-mode, support tor2web non-anonymous mode),
  121. [if test x$enableval = xyes; then
  122. CFLAGS="$CFLAGS -D ENABLE_TOR2WEB_MODE=1"
  123. fi])
  124. AC_ARG_ENABLE(bufferevents,
  125. AS_HELP_STRING(--enable-bufferevents, use Libevent's buffered IO.))
  126. dnl check for the correct "ar" when cross-compiling
  127. AN_MAKEVAR([AR], [AC_PROG_AR])
  128. AN_PROGRAM([ar], [AC_PROG_AR])
  129. AC_DEFUN([AC_PROG_AR], [AC_CHECK_TOOL([AR], [ar], [ar])])
  130. AC_PROG_AR
  131. AC_PROG_CC
  132. AC_PROG_CPP
  133. AC_PROG_MAKE_SET
  134. AC_PROG_RANLIB
  135. dnl autoconf 2.59 appears not to support AC_PROG_SED
  136. AC_CHECK_PROG([SED],[sed],[sed],[/bin/false])
  137. dnl check for asciidoc and a2x
  138. AC_PATH_PROG([ASCIIDOC], [asciidoc], none)
  139. AC_PATH_PROG([A2X], [a2x], none)
  140. AM_CONDITIONAL(USE_ASCIIDOC, test x$asciidoc = xtrue)
  141. AM_CONDITIONAL(USE_FW_HELPER, test x$natpmp = xtrue || test x$upnp = xtrue)
  142. AM_CONDITIONAL(NAT_PMP, test x$natpmp = xtrue)
  143. AM_CONDITIONAL(MINIUPNPC, test x$upnp = xtrue)
  144. AM_PROG_CC_C_O
  145. ifdef([AC_C_FLEXIBLE_ARRAY_MEMBER], [
  146. AC_C_FLEXIBLE_ARRAY_MEMBER
  147. ], [
  148. dnl Maybe we've got an old autoconf...
  149. AC_CACHE_CHECK([for flexible array members],
  150. tor_cv_c_flexarray,
  151. [AC_COMPILE_IFELSE(
  152. AC_LANG_PROGRAM([
  153. struct abc { int a; char b[]; };
  154. ], [
  155. struct abc *def = malloc(sizeof(struct abc)+sizeof(char));
  156. def->b[0] = 33;
  157. ]),
  158. [tor_cv_c_flexarray=yes],
  159. [tor_cv_c_flexarray=no])])
  160. if test $tor_cv_flexarray = yes ; then
  161. AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [], [Define to nothing if C supports flexible array members, and to 1 if it does not.])
  162. else
  163. AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [1], [Define to nothing if C supports flexible array members, and to 1 if it does not.])
  164. fi
  165. ])
  166. AC_PATH_PROG([SHA1SUM], [sha1sum], none)
  167. AC_PATH_PROG([OPENSSL], [openssl], none)
  168. TORUSER=_tor
  169. AC_ARG_WITH(tor-user,
  170. [ --with-tor-user=NAME Specify username for tor daemon ],
  171. [
  172. TORUSER=$withval
  173. ]
  174. )
  175. AC_SUBST(TORUSER)
  176. TORGROUP=_tor
  177. AC_ARG_WITH(tor-group,
  178. [ --with-tor-group=NAME Specify group name for tor daemon ],
  179. [
  180. TORGROUP=$withval
  181. ]
  182. )
  183. AC_SUBST(TORGROUP)
  184. dnl If _WIN32 is defined and non-zero, we are building for win32
  185. AC_MSG_CHECKING([for win32])
  186. AC_RUN_IFELSE([AC_LANG_SOURCE([
  187. int main(int c, char **v) {
  188. #ifdef _WIN32
  189. #if _WIN32
  190. return 0;
  191. #else
  192. return 1;
  193. #endif
  194. #else
  195. return 2;
  196. #endif
  197. }])],
  198. bwin32=true; AC_MSG_RESULT([yes]),
  199. bwin32=false; AC_MSG_RESULT([no]),
  200. bwin32=cross; AC_MSG_RESULT([cross])
  201. )
  202. if test "$bwin32" = cross; then
  203. AC_MSG_CHECKING([for win32 (cross)])
  204. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  205. #ifdef _WIN32
  206. int main(int c, char **v) {return 0;}
  207. #else
  208. #error
  209. int main(int c, char **v) {return x(y);}
  210. #endif
  211. ])],
  212. bwin32=true; AC_MSG_RESULT([yes]),
  213. bwin32=false; AC_MSG_RESULT([no]))
  214. fi
  215. AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
  216. dnl Enable C99 when compiling with MIPSpro
  217. AC_MSG_CHECKING([for MIPSpro compiler])
  218. AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [
  219. #if (defined(__sgi) && defined(_COMPILER_VERSION))
  220. #error
  221. return x(y);
  222. #endif
  223. ])],
  224. bmipspro=false; AC_MSG_RESULT(no),
  225. bmipspro=true; AC_MSG_RESULT(yes))
  226. if test "$bmipspro" = true; then
  227. CFLAGS="$CFLAGS -c99"
  228. fi
  229. AC_C_BIGENDIAN
  230. AC_SEARCH_LIBS(socket, [socket network])
  231. AC_SEARCH_LIBS(gethostbyname, [nsl])
  232. AC_SEARCH_LIBS(dlopen, [dl])
  233. AC_SEARCH_LIBS(inet_aton, [resolv])
  234. saved_LIBS="$LIBS"
  235. AC_SEARCH_LIBS([clock_gettime], [rt])
  236. if test "$LIBS" != "$saved_LIBS"; then
  237. # Looks like we need -lrt for clock_gettime().
  238. have_rt=yes
  239. fi
  240. if test "$enable_threads" = "yes"; then
  241. AC_SEARCH_LIBS(pthread_create, [pthread])
  242. AC_SEARCH_LIBS(pthread_detach, [pthread])
  243. fi
  244. dnl -------------------------------------------------------------------
  245. dnl Check for functions before libevent, since libevent-1.2 apparently
  246. dnl exports strlcpy without defining it in a header.
  247. AC_CHECK_FUNCS(
  248. _NSGetEnviron \
  249. accept4 \
  250. clock_gettime \
  251. flock \
  252. ftime \
  253. getaddrinfo \
  254. getifaddrs \
  255. getrlimit \
  256. gettimeofday \
  257. gmtime_r \
  258. inet_aton \
  259. ioctl \
  260. issetugid \
  261. localtime_r \
  262. lround \
  263. memmem \
  264. prctl \
  265. rint \
  266. socketpair \
  267. strlcat \
  268. strlcpy \
  269. strptime \
  270. strtok_r \
  271. strtoull \
  272. sysconf \
  273. uname \
  274. vasprintf \
  275. )
  276. using_custom_malloc=no
  277. if test x$enable_openbsd_malloc = xyes ; then
  278. AC_DEFINE(HAVE_MALLOC_GOOD_SIZE, 1, [Defined if we have the malloc_good_size function])
  279. using_custom_malloc=yes
  280. fi
  281. if test x$tcmalloc = xyes ; then
  282. using_custom_malloc=yes
  283. fi
  284. if test $using_custom_malloc = no ; then
  285. AC_CHECK_FUNCS(mallinfo malloc_good_size malloc_usable_size)
  286. fi
  287. if test "$enable_threads" = "yes"; then
  288. AC_CHECK_HEADERS(pthread.h)
  289. AC_CHECK_FUNCS(pthread_create)
  290. fi
  291. dnl ------------------------------------------------------
  292. dnl Where do you live, libevent? And how do we call you?
  293. if test "$bwin32" = true; then
  294. TOR_LIB_WS32=-lws2_32
  295. TOR_LIB_IPHLPAPI=-liphlpapi
  296. # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  297. # think it's actually necessary.
  298. TOR_LIB_GDI=-lgdi32
  299. else
  300. TOR_LIB_WS32=
  301. TOR_LIB_GDI=
  302. fi
  303. AC_SUBST(TOR_LIB_WS32)
  304. AC_SUBST(TOR_LIB_GDI)
  305. AC_SUBST(TOR_LIB_IPHLPAPI)
  306. dnl We need to do this before we try our disgusting hack below.
  307. AC_CHECK_HEADERS([sys/types.h])
  308. dnl This is a disgusting hack so we safely include older libevent headers.
  309. AC_CHECK_TYPE(u_int64_t, unsigned long long)
  310. AC_CHECK_TYPE(u_int32_t, unsigned long)
  311. AC_CHECK_TYPE(u_int16_t, unsigned short)
  312. AC_CHECK_TYPE(u_int8_t, unsigned char)
  313. tor_libevent_pkg_redhat="libevent"
  314. tor_libevent_pkg_debian="libevent-dev"
  315. tor_libevent_devpkg_redhat="libevent-devel"
  316. tor_libevent_devpkg_debian="libevent-dev"
  317. dnl On Gnu/Linux or any place we require it, we'll add librt to the Libevent
  318. dnl linking for static builds.
  319. STATIC_LIBEVENT_FLAGS=""
  320. if test "$enable_static_libevent" = "yes"; then
  321. if test "$have_rt" = yes; then
  322. STATIC_LIBEVENT_FLAGS=" -lrt "
  323. fi
  324. fi
  325. TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32], [
  326. #ifdef _WIN32
  327. #include <winsock2.h>
  328. #endif
  329. #include <stdlib.h>
  330. #include <sys/time.h>
  331. #include <sys/types.h>
  332. #include <event.h>], [
  333. #ifdef _WIN32
  334. #include <winsock2.h>
  335. #endif
  336. void exit(int); void *event_init(void);],
  337. [
  338. #ifdef _WIN32
  339. {WSADATA d; WSAStartup(0x101,&d); }
  340. #endif
  341. event_init(); exit(0);
  342. ], [--with-libevent-dir], [/opt/libevent])
  343. dnl Now check for particular libevent functions.
  344. save_LIBS="$LIBS"
  345. save_LDFLAGS="$LDFLAGS"
  346. save_CPPFLAGS="$CPPFLAGS"
  347. LIBS="-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32 $LIBS"
  348. LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
  349. CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
  350. AC_CHECK_FUNCS(event_get_version event_get_version_number event_get_method event_set_log_callback evdns_set_outgoing_bind_address event_base_loopexit)
  351. AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
  352. [#include <event.h>
  353. ])
  354. AC_CHECK_HEADERS(event2/event.h event2/dns.h event2/bufferevent_ssl.h)
  355. LIBS="$save_LIBS"
  356. LDFLAGS="$save_LDFLAGS"
  357. CPPFLAGS="$save_CPPFLAGS"
  358. AM_CONDITIONAL(USE_EXTERNAL_EVDNS, test x$ac_cv_header_event2_dns_h = xyes)
  359. if test "$enable_static_libevent" = "yes"; then
  360. if test "$tor_cv_library_libevent_dir" = "(system)"; then
  361. AC_MSG_ERROR("You must specify an explicit --with-libevent-dir=x option when using --enable-static-libevent")
  362. else
  363. TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent.a $STATIC_LIBEVENT_FLAGS"
  364. fi
  365. else
  366. TOR_LIBEVENT_LIBS="-levent"
  367. fi
  368. dnl This isn't the best test for Libevent 2.0.3-alpha. Once it's released,
  369. dnl we can do much better.
  370. if test "$enable_bufferevents" = "yes" ; then
  371. if test "$ac_cv_header_event2_bufferevent_ssl_h" != "yes" ; then
  372. AC_MSG_ERROR([You've asked for bufferevent support, but you're using a version of Libevent without SSL support. This won't work. We need Libevent 2.0.8-rc or later, and you don't seem to even have Libevent 2.0.3-alpha.])
  373. else
  374. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent"
  375. # Check for the right version. First see if version detection works.
  376. AC_MSG_CHECKING([whether we can detect the Libevent version])
  377. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  378. #include <event2/event.h>
  379. #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 10
  380. #error
  381. int x = y(zz);
  382. #else
  383. int x = 1;
  384. #endif
  385. ])], [event_version_number_works=yes; AC_MSG_RESULT([yes]) ],
  386. [event_version_number_works=no; AC_MSG_RESULT([no])])
  387. if test "$event_version_number_works" != 'yes'; then
  388. AC_MSG_WARN([Version detection on Libevent seems broken. Your Libevent installation is probably screwed up or very old.])
  389. else
  390. AC_MSG_CHECKING([whether Libevent is new enough for bufferevents])
  391. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  392. #include <event2/event.h>
  393. #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 0x02000d00
  394. #error
  395. int x = y(zz);
  396. #else
  397. int x = 1;
  398. #endif
  399. ])], [ AC_MSG_RESULT([yes]) ],
  400. [ AC_MSG_RESULT([no])
  401. AC_MSG_ERROR([Libevent does not seem new enough to support bufferevents. We require 2.0.13-stable or later]) ] )
  402. fi
  403. fi
  404. fi
  405. LIBS="$save_LIBS"
  406. LDFLAGS="$save_LDFLAGS"
  407. CPPFLAGS="$save_CPPFLAGS"
  408. AM_CONDITIONAL(USE_BUFFEREVENTS, test "$enable_bufferevents" = "yes")
  409. if test "$enable_bufferevents" = "yes"; then
  410. AC_DEFINE(USE_BUFFEREVENTS, 1, [Defined if we're going to use Libevent's buffered IO API])
  411. if test "$enable_static_libevent" = "yes"; then
  412. TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent_openssl.a $TOR_LIBEVENT_LIBS"
  413. else
  414. TOR_LIBEVENT_LIBS="-levent_openssl $TOR_LIBEVENT_LIBS"
  415. fi
  416. fi
  417. AC_SUBST(TOR_LIBEVENT_LIBS)
  418. dnl ------------------------------------------------------
  419. dnl Where do you live, libm?
  420. dnl On some platforms (Haiku/BeOS) the math library is
  421. dnl part of libroot. In which case don't link against lm
  422. TOR_LIB_MATH=""
  423. save_LIBS="$LIBS"
  424. AC_SEARCH_LIBS(pow, [m], , AC_MSG_ERROR([Could not find pow in libm or libc.]))
  425. if test "$ac_cv_search_pow" != "none required"; then
  426. TOR_LIB_MATH="$ac_cv_search_pow"
  427. fi
  428. LIBS="$save_LIBS"
  429. AC_SUBST(TOR_LIB_MATH)
  430. dnl ------------------------------------------------------
  431. dnl Where do you live, openssl? And how do we call you?
  432. tor_openssl_pkg_redhat="openssl"
  433. tor_openssl_pkg_debian="libssl"
  434. tor_openssl_devpkg_redhat="openssl-devel"
  435. tor_openssl_devpkg_debian="libssl-dev"
  436. ALT_openssl_WITHVAL=""
  437. AC_ARG_WITH(ssl-dir,
  438. [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
  439. [
  440. if test "x$withval" != xno && test "x$withval" != "x" ; then
  441. ALT_openssl_WITHVAL="$withval"
  442. fi
  443. ])
  444. TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
  445. [#include <openssl/rand.h>],
  446. [void RAND_add(const void *buf, int num, double entropy);],
  447. [RAND_add((void*)0,0,0); exit(0);], [],
  448. [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
  449. dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
  450. if test "$enable_static_openssl" = "yes"; then
  451. if test "$tor_cv_library_openssl_dir" = "(system)"; then
  452. AC_MSG_ERROR("You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl")
  453. else
  454. TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a"
  455. fi
  456. else
  457. TOR_OPENSSL_LIBS="-lssl -lcrypto"
  458. fi
  459. AC_SUBST(TOR_OPENSSL_LIBS)
  460. dnl ------------------------------------------------------
  461. dnl Where do you live, zlib? And how do we call you?
  462. tor_zlib_pkg_redhat="zlib"
  463. tor_zlib_pkg_debian="zlib1g"
  464. tor_zlib_devpkg_redhat="zlib-devel"
  465. tor_zlib_devpkg_debian="zlib1g-dev"
  466. TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
  467. [#include <zlib.h>],
  468. [const char * zlibVersion(void);],
  469. [zlibVersion(); exit(0);], [--with-zlib-dir],
  470. [/opt/zlib])
  471. if test "$enable_static_zlib" = "yes"; then
  472. if test "$tor_cv_library_zlib_dir" = "(system)"; then
  473. AC_MSG_ERROR("You must specify an explicit --with-zlib-dir=x option when
  474. using --enable-static-zlib")
  475. else
  476. TOR_ZLIB_LIBS="$TOR_LIBDIR_zlib/libz.a"
  477. fi
  478. else
  479. TOR_ZLIB_LIBS="-lz"
  480. fi
  481. AC_SUBST(TOR_ZLIB_LIBS)
  482. dnl ---------------------------------------------------------------------
  483. dnl Now that we know about our major libraries, we can check for compiler
  484. dnl and linker hardening options. We need to do this with the libraries known,
  485. dnl since sometimes the linker will like an option but not be willing to
  486. dnl use it with a build of a library.
  487. all_ldflags_for_check="$TOR_LDFLAGS_zlib $TOR_LDFLAGS_openssl $TOR_LDFLAGS_libevent"
  488. all_libs_for_check="$TOR_ZLIB_LIBS $TOR_LIB_MATH $TOR_LIBEVENT_LIBS $TOR_OPENSSL_LIBS $TOR_LIB_WS32 $TOR_LIB_GDI"
  489. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  490. #if !defined(__clang__)
  491. #error
  492. #endif])], have_clang=yes, have_clang=no)
  493. if test x$enable_gcc_hardening != xno; then
  494. CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2"
  495. if test x$have_clang = xyes; then
  496. TOR_CHECK_CFLAGS(-Qunused-arguments)
  497. fi
  498. TOR_CHECK_CFLAGS(-fstack-protector-all)
  499. TOR_CHECK_CFLAGS(-Wstack-protector)
  500. TOR_CHECK_CFLAGS(-fwrapv)
  501. TOR_CHECK_CFLAGS(--param ssp-buffer-size=1)
  502. if test "$bwin32" = "false"; then
  503. TOR_CHECK_CFLAGS(-fPIE)
  504. TOR_CHECK_LDFLAGS(-pie, "$all_ldflags_for_check", "$all_libs_for_check")
  505. fi
  506. fi
  507. if test x$enable_linker_hardening != xno; then
  508. TOR_CHECK_LDFLAGS(-z relro -z now, "$all_ldflags_for_check", "$all_libs_for_check")
  509. fi
  510. dnl ------------------------------------------------------
  511. dnl Where do you live, libnatpmp? And how do we call you?
  512. dnl There are no packages for Debian or Redhat as of this patch
  513. if test "$natpmp" = "true"; then
  514. AC_DEFINE(NAT_PMP, 1, [Define to 1 if we are building with nat-pmp.])
  515. TOR_SEARCH_LIBRARY(libnatpmp, $trylibnatpmpdir, [-lnatpmp $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
  516. [#include <natpmp.h>],
  517. [#ifdef _WIN32
  518. #define STATICLIB
  519. #endif
  520. #include <natpmp.h>],
  521. [ int r;
  522. natpmp_t natpmp;
  523. natpmpresp_t response;
  524. r = initnatpmp(&natpmp, 0, 0);],
  525. [printf("initnatpmp() returned %d (%s)\n", r, r?"FAILED":"SUCCESS");
  526. exit(0);],
  527. [--with-libnatpmp-dir],
  528. [/usr/lib/])
  529. fi
  530. dnl ------------------------------------------------------
  531. dnl Where do you live, libminiupnpc? And how do we call you?
  532. dnl There are no packages for Debian or Redhat as of this patch
  533. if test "$upnp" = "true"; then
  534. AC_DEFINE(MINIUPNPC, 1, [Define to 1 if we are building with UPnP.])
  535. dnl Before we call TOR_SEARCH_LIBRARY we'll do a quick compile test
  536. dnl to see if we have miniupnpc-1.5 or -1.6
  537. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <miniupnpc/miniupnpc.h>],
  538. [upnpDiscover(1, 0, 0, 0);exit(0);])],[miniupnpc15="true"],[miniupnpc15="false"])
  539. if test "$miniupnpc15" = "true" ; then
  540. AC_DEFINE([MINIUPNPC15],[1],[libminiupnpc version 1.5 found])
  541. TOR_SEARCH_LIBRARY(libminiupnpc, $trylibminiupnpcdir, [-lminiupnpc $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
  542. [#include <miniupnpc/miniwget.h>
  543. #include <miniupnpc/miniupnpc.h>
  544. #include <miniupnpc/upnpcommands.h>],
  545. [void upnpDiscover(int delay, const char * multicastif,
  546. const char * minissdpdsock, int sameport);],
  547. [upnpDiscover(1, 0, 0, 0); exit(0);],
  548. [--with-libminiupnpc-dir],
  549. [/usr/lib/])
  550. else
  551. TOR_SEARCH_LIBRARY(libminiupnpc, $trylibminiupnpcdir, [-lminiupnpc $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
  552. [#include <miniupnpc/miniwget.h>
  553. #include <miniupnpc/miniupnpc.h>
  554. #include <miniupnpc/upnpcommands.h>],
  555. [void upnpDiscover(int delay, const char * multicastif,
  556. const char * minissdpdsock, int sameport, int ipv6, int * error);],
  557. [upnpDiscover(1, 0, 0, 0, 0, 0); exit(0);],
  558. [--with-libminiupnpc-dir],
  559. [/usr/lib/])
  560. fi
  561. fi
  562. dnl Make sure to enable support for large off_t if available.
  563. AC_SYS_LARGEFILE
  564. AC_CHECK_HEADERS(
  565. assert.h \
  566. errno.h \
  567. fcntl.h \
  568. signal.h \
  569. string.h \
  570. sys/fcntl.h \
  571. sys/stat.h \
  572. sys/time.h \
  573. sys/types.h \
  574. time.h \
  575. unistd.h
  576. , , 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.))
  577. dnl These headers are not essential
  578. AC_CHECK_HEADERS(
  579. arpa/inet.h \
  580. crt_externs.h \
  581. grp.h \
  582. ifaddrs.h \
  583. inttypes.h \
  584. limits.h \
  585. linux/types.h \
  586. machine/limits.h \
  587. malloc.h \
  588. malloc/malloc.h \
  589. malloc_np.h \
  590. netdb.h \
  591. netinet/in.h \
  592. netinet/in6.h \
  593. pwd.h \
  594. stdint.h \
  595. sys/file.h \
  596. sys/ioctl.h \
  597. sys/limits.h \
  598. sys/mman.h \
  599. sys/param.h \
  600. sys/prctl.h \
  601. sys/resource.h \
  602. sys/socket.h \
  603. sys/syslimits.h \
  604. sys/time.h \
  605. sys/types.h \
  606. sys/un.h \
  607. sys/utime.h \
  608. sys/wait.h \
  609. syslog.h \
  610. utime.h
  611. )
  612. AC_CHECK_HEADERS(sys/param.h)
  613. TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
  614. [#ifdef HAVE_MALLOC_H
  615. #include <malloc.h>
  616. #endif
  617. #ifdef HAVE_MALLOC_MALLOC_H
  618. #include <malloc/malloc.h>
  619. #endif])
  620. AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
  621. [#ifdef HAVE_SYS_TYPES_H
  622. #include <sys/types.h>
  623. #endif
  624. #ifdef HAVE_SYS_SOCKET_H
  625. #include <sys/socket.h>
  626. #endif])
  627. AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
  628. [#ifdef HAVE_SYS_TYPES_H
  629. #include <sys/types.h>
  630. #endif
  631. #ifdef HAVE_SYS_SOCKET_H
  632. #include <sys/socket.h>
  633. #endif
  634. #ifdef HAVE_NET_IF_H
  635. #include <net/if.h>
  636. #endif])
  637. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  638. linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
  639. [#ifdef HAVE_SYS_TYPES_H
  640. #include <sys/types.h>
  641. #endif
  642. #ifdef HAVE_SYS_SOCKET_H
  643. #include <sys/socket.h>
  644. #endif
  645. #ifdef HAVE_LIMITS_H
  646. #include <limits.h>
  647. #endif
  648. #ifdef HAVE_LINUX_TYPES_H
  649. #include <linux/types.h>
  650. #endif
  651. #ifdef HAVE_NETINET_IN6_H
  652. #include <netinet/in6.h>
  653. #endif
  654. #ifdef HAVE_NETINET_IN_H
  655. #include <netinet/in.h>
  656. #endif])
  657. if test x$transparent = xtrue ; then
  658. transparent_ok=0
  659. if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
  660. transparent_ok=1
  661. fi
  662. if test x$linux_netfilter_ipv4 = x1 ; then
  663. transparent_ok=1
  664. fi
  665. if test x$transparent_ok = x1 ; then
  666. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  667. case $host in
  668. *-*-openbsd*)
  669. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  670. esac
  671. else
  672. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  673. fi
  674. fi
  675. AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
  676. [#ifdef HAVE_SYS_TYPES_H
  677. #include <sys/types.h>
  678. #endif
  679. #ifdef HAVE_SYS_TIME_H
  680. #include <sys/time.h>
  681. #endif])
  682. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  683. dnl Watch out.
  684. AC_CHECK_SIZEOF(int8_t)
  685. AC_CHECK_SIZEOF(int16_t)
  686. AC_CHECK_SIZEOF(int32_t)
  687. AC_CHECK_SIZEOF(int64_t)
  688. AC_CHECK_SIZEOF(uint8_t)
  689. AC_CHECK_SIZEOF(uint16_t)
  690. AC_CHECK_SIZEOF(uint32_t)
  691. AC_CHECK_SIZEOF(uint64_t)
  692. AC_CHECK_SIZEOF(intptr_t)
  693. AC_CHECK_SIZEOF(uintptr_t)
  694. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  695. AC_CHECK_SIZEOF(char)
  696. AC_CHECK_SIZEOF(short)
  697. AC_CHECK_SIZEOF(int)
  698. AC_CHECK_SIZEOF(long)
  699. AC_CHECK_SIZEOF(long long)
  700. AC_CHECK_SIZEOF(__int64)
  701. AC_CHECK_SIZEOF(void *)
  702. AC_CHECK_SIZEOF(time_t)
  703. AC_CHECK_SIZEOF(size_t)
  704. AC_CHECK_TYPES([uint, u_char, ssize_t])
  705. dnl used to include sockaddr_storage, but everybody has that.
  706. AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
  707. [#ifdef HAVE_SYS_TYPES_H
  708. #include <sys/types.h>
  709. #endif
  710. #ifdef HAVE_NETINET_IN_H
  711. #include <netinet/in.h>
  712. #endif
  713. #ifdef HAVE_NETINET_IN6_H
  714. #include <netinet/in6.h>
  715. #endif
  716. #ifdef HAVE_SYS_SOCKET_H
  717. #include <sys/socket.h>
  718. #endif
  719. #ifdef _WIN32
  720. #define _WIN32_WINNT 0x0501
  721. #define WIN32_LEAN_AND_MEAN
  722. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  723. #include <winsock.h>
  724. #else
  725. #include <winsock2.h>
  726. #include <ws2tcpip.h>
  727. #endif
  728. #endif
  729. ])
  730. AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
  731. [#ifdef HAVE_SYS_TYPES_H
  732. #include <sys/types.h>
  733. #endif
  734. #ifdef HAVE_NETINET_IN_H
  735. #include <netinet/in.h>
  736. #endif
  737. #ifdef HAVE_NETINET_IN6_H
  738. #include <netinet/in6.h>
  739. #endif
  740. #ifdef HAVE_SYS_SOCKET_H
  741. #include <sys/socket.h>
  742. #endif
  743. #ifdef _WIN32
  744. #define _WIN32_WINNT 0x0501
  745. #define WIN32_LEAN_AND_MEAN
  746. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  747. #include <winsock.h>
  748. #else
  749. #include <winsock2.h>
  750. #include <ws2tcpip.h>
  751. #endif
  752. #endif
  753. ])
  754. AC_CHECK_TYPES([rlim_t], , ,
  755. [#ifdef HAVE_SYS_TYPES_H
  756. #include <sys/types.h>
  757. #endif
  758. #ifdef HAVE_SYS_TIME_H
  759. #include <sys/time.h>
  760. #endif
  761. #ifdef HAVE_SYS_RESOURCE_H
  762. #include <sys/resource.h>
  763. #endif
  764. ])
  765. AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
  766. AC_RUN_IFELSE([AC_LANG_SOURCE([
  767. #ifdef HAVE_SYS_TYPES_H
  768. #include <sys/types.h>
  769. #endif
  770. #ifdef HAVE_SYS_TIME_H
  771. #include <sys/time.h>
  772. #endif
  773. #ifdef HAVE_TIME_H
  774. #include <time.h>
  775. #endif
  776. int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }])],
  777. tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes, tor_cv_time_t_signed=cross)
  778. ])
  779. if test "$tor_cv_time_t_signed" = cross; then
  780. AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  781. fi
  782. if test "$tor_cv_time_t_signed" != no; then
  783. AC_DEFINE([TIME_T_IS_SIGNED], 1,
  784. [Define to 1 iff time_t is signed])
  785. fi
  786. AC_CACHE_CHECK([whether size_t is signed], tor_cv_size_t_signed, [
  787. AC_RUN_IFELSE([AC_LANG_SOURCE([
  788. #ifdef HAVE_SYS_TYPES_H
  789. #include <sys/types.h>
  790. #endif
  791. int main(int c, char**v) { if (((size_t)-1)<0) return 1; else return 0; }])],
  792. tor_cv_size_t_signed=no, tor_cv_size_t_signed=yes, tor_cv_size_t_signed=cross)
  793. ])
  794. if test "$tor_cv_size_t_signed" = cross; then
  795. AC_MSG_NOTICE([Cross compiling: assuming that size_t is not signed.])
  796. fi
  797. if test "$tor_cv_size_t_signed" = yes; then
  798. AC_MSG_ERROR([You have a signed size_t; that's grossly nonconformant.])
  799. fi
  800. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  801. #ifdef HAVE_SYS_SOCKET_H
  802. #include <sys/socket.h>
  803. #endif
  804. ])
  805. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  806. AC_CHECK_SIZEOF(cell_t)
  807. # Now make sure that NULL can be represented as zero bytes.
  808. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  809. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  810. [[#include <stdlib.h>
  811. #include <string.h>
  812. #include <stdio.h>
  813. #ifdef HAVE_STDDEF_H
  814. #include <stddef.h>
  815. #endif
  816. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  817. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  818. [tor_cv_null_is_zero=yes],
  819. [tor_cv_null_is_zero=no],
  820. [tor_cv_null_is_zero=cross])])
  821. if test "$tor_cv_null_is_zero" = cross ; then
  822. # Cross-compiling; let's hope that the target isn't raving mad.
  823. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  824. fi
  825. if test "$tor_cv_null_is_zero" != no; then
  826. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  827. [Define to 1 iff memset(0) sets pointers to NULL])
  828. fi
  829. # And what happens when we malloc zero?
  830. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  831. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  832. [[#include <stdlib.h>
  833. #include <string.h>
  834. #include <stdio.h>
  835. #ifdef HAVE_STDDEF_H
  836. #include <stddef.h>
  837. #endif
  838. int main () { return malloc(0)?0:1; }]])],
  839. [tor_cv_malloc_zero_works=yes],
  840. [tor_cv_malloc_zero_works=no],
  841. [tor_cv_malloc_zero_works=cross])])
  842. if test "$tor_cv_malloc_zero_works" = cross; then
  843. # Cross-compiling; let's hope that the target isn't raving mad.
  844. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  845. fi
  846. if test "$tor_cv_malloc_zero_works" = yes; then
  847. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  848. [Define to 1 iff malloc(0) returns a pointer])
  849. fi
  850. # whether we seem to be in a 2s-complement world.
  851. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  852. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  853. [[int main () { int problem = ((-99) != (~99)+1);
  854. return problem ? 1 : 0; }]])],
  855. [tor_cv_twos_complement=yes],
  856. [tor_cv_twos_complement=no],
  857. [tor_cv_twos_complement=cross])])
  858. if test "$tor_cv_twos_complement" = cross ; then
  859. # Cross-compiling; let's hope that the target isn't raving mad.
  860. AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
  861. fi
  862. if test "$tor_cv_twos_complement" != no ; then
  863. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  864. [Define to 1 iff we represent negative integers with two's complement])
  865. fi
  866. # What does shifting a negative value do?
  867. AC_CACHE_CHECK([whether right-shift on negative values does sign-extension], tor_cv_sign_extend,
  868. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  869. [[int main () { int okay = (-60 >> 8) == -1; return okay ? 0 : 1; }]])],
  870. [tor_cv_sign_extend=yes],
  871. [tor_cv_sign_extend=no],
  872. [tor_cv_sign_extend=cross])])
  873. if test "$tor_cv_sign_extend" = cross ; then
  874. # Cross-compiling; let's hope that the target isn't raving mad.
  875. AC_MSG_NOTICE([Cross-compiling: we'll assume that right-shifting negative integers causes sign-extension])
  876. fi
  877. if test "$tor_cv_sign_extend" != no ; then
  878. AC_DEFINE([RSHIFT_DOES_SIGN_EXTEND], 1,
  879. [Define to 1 iff right-shifting a negative value performs sign-extension])
  880. fi
  881. # Whether we should use the dmalloc memory allocation debugging library.
  882. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  883. AC_ARG_WITH(dmalloc,
  884. [ --with-dmalloc Use debug memory allocation library. ],
  885. [if [[ "$withval" = "yes" ]]; then
  886. dmalloc=1
  887. AC_MSG_RESULT(yes)
  888. else
  889. dmalloc=1
  890. AC_MSG_RESULT(no)
  891. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  892. )
  893. if [[ $dmalloc -eq 1 ]]; then
  894. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  895. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  896. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  897. AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
  898. AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
  899. fi
  900. AC_ARG_WITH(tcmalloc,
  901. [ --with-tcmalloc Use tcmalloc memory allocation library. ],
  902. [ tcmalloc=yes ], [ tcmalloc=no ])
  903. if test x$tcmalloc = xyes ; then
  904. LDFLAGS="-ltcmalloc $LDFLAGS"
  905. fi
  906. # By default, we're going to assume we don't have mlockall()
  907. # bionic and other platforms have various broken mlockall subsystems.
  908. # Some systems don't have a working mlockall, some aren't linkable,
  909. # and some have it but don't declare it.
  910. AC_CHECK_FUNCS(mlockall)
  911. AC_CHECK_DECLS([mlockall], , , [
  912. #ifdef HAVE_SYS_MMAN_H
  913. #include <sys/mman.h>
  914. #endif])
  915. # Allow user to specify an alternate syslog facility
  916. AC_ARG_WITH(syslog-facility,
  917. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  918. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  919. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  920. AC_SUBST(LOGFACILITY)
  921. # Check if we have getresuid and getresgid
  922. AC_CHECK_FUNCS(getresuid getresgid)
  923. # Check for gethostbyname_r in all its glorious incompatible versions.
  924. # (This logic is based on that in Python's configure.in)
  925. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  926. [Define this if you have any gethostbyname_r()])
  927. AC_CHECK_FUNC(gethostbyname_r, [
  928. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  929. OLD_CFLAGS=$CFLAGS
  930. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  931. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
  932. #include <netdb.h>
  933. ], [[
  934. char *cp1, *cp2;
  935. struct hostent *h1, *h2;
  936. int i1, i2;
  937. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  938. ]])],[
  939. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  940. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  941. [Define this if gethostbyname_r takes 6 arguments])
  942. AC_MSG_RESULT(6)
  943. ], [
  944. AC_TRY_COMPILE([
  945. #include <netdb.h>
  946. ], [
  947. char *cp1, *cp2;
  948. struct hostent *h1;
  949. int i1, i2;
  950. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  951. ], [
  952. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  953. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  954. [Define this if gethostbyname_r takes 5 arguments])
  955. AC_MSG_RESULT(5)
  956. ], [
  957. AC_TRY_COMPILE([
  958. #include <netdb.h>
  959. ], [
  960. char *cp1;
  961. struct hostent *h1;
  962. struct hostent_data hd;
  963. (void) gethostbyname_r(cp1,h1,&hd);
  964. ], [
  965. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  966. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  967. [Define this if gethostbyname_r takes 3 arguments])
  968. AC_MSG_RESULT(3)
  969. ], [
  970. AC_MSG_RESULT(0)
  971. ])
  972. ])
  973. ])
  974. CFLAGS=$OLD_CFLAGS
  975. ])
  976. AC_CACHE_CHECK([whether the C compiler supports __func__],
  977. tor_cv_have_func_macro,
  978. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  979. #include <stdio.h>
  980. int main(int c, char **v) { puts(__func__); }])],
  981. tor_cv_have_func_macro=yes,
  982. tor_cv_have_func_macro=no))
  983. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  984. tor_cv_have_FUNC_macro,
  985. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  986. #include <stdio.h>
  987. int main(int c, char **v) { puts(__FUNC__); }])],
  988. tor_cv_have_FUNC_macro=yes,
  989. tor_cv_have_FUNC_macro=no))
  990. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  991. tor_cv_have_FUNCTION_macro,
  992. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  993. #include <stdio.h>
  994. int main(int c, char **v) { puts(__FUNCTION__); }])],
  995. tor_cv_have_FUNCTION_macro=yes,
  996. tor_cv_have_FUNCTION_macro=no))
  997. AC_CACHE_CHECK([whether we have extern char **environ already declared],
  998. tor_cv_have_environ_declared,
  999. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  1000. /* We define _GNU_SOURCE here because it is also defined in compat.c.
  1001. * Without it environ doesn't get declared. */
  1002. #define _GNU_SOURCE
  1003. #ifdef HAVE_UNISTD_H
  1004. #include <unistd.h>
  1005. #endif
  1006. #include <stdlib.h>
  1007. int main(int c, char **v) { char **t = environ; }])],
  1008. tor_cv_have_environ_declared=yes,
  1009. tor_cv_have_environ_declared=no))
  1010. if test "$tor_cv_have_func_macro" = 'yes'; then
  1011. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  1012. fi
  1013. if test "$tor_cv_have_FUNC_macro" = 'yes'; then
  1014. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  1015. fi
  1016. if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
  1017. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  1018. [Defined if the compiler supports __FUNCTION__])
  1019. fi
  1020. if test "$tor_cv_have_environ_declared" = 'yes'; then
  1021. AC_DEFINE(HAVE_EXTERN_ENVIRON_DECLARED, 1,
  1022. [Defined if we have extern char **environ already declared])
  1023. fi
  1024. # $prefix stores the value of the --prefix command line option, or
  1025. # NONE if the option wasn't set. In the case that it wasn't set, make
  1026. # it be the default, so that we can use it to expand directories now.
  1027. if test "x$prefix" = "xNONE"; then
  1028. prefix=$ac_default_prefix
  1029. fi
  1030. # and similarly for $exec_prefix
  1031. if test "x$exec_prefix" = "xNONE"; then
  1032. exec_prefix=$prefix
  1033. fi
  1034. if test "x$BUILDDIR" = "x"; then
  1035. BUILDDIR=`pwd`
  1036. fi
  1037. AC_SUBST(BUILDDIR)
  1038. AH_TEMPLATE([BUILDDIR],[tor's build directory])
  1039. AC_DEFINE_UNQUOTED(BUILDDIR,"$BUILDDIR")
  1040. if test "x$CONFDIR" = "x"; then
  1041. CONFDIR=`eval echo $sysconfdir/tor`
  1042. fi
  1043. AC_SUBST(CONFDIR)
  1044. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  1045. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  1046. BINDIR=`eval echo $bindir`
  1047. AC_SUBST(BINDIR)
  1048. LOCALSTATEDIR=`eval echo $localstatedir`
  1049. AC_SUBST(LOCALSTATEDIR)
  1050. if test "$bwin32" = true; then
  1051. # Test if the linker supports the --nxcompat and --dynamicbase options
  1052. # for Windows
  1053. save_LDFLAGS="$LDFLAGS"
  1054. LDFLAGS="-Wl,--nxcompat -Wl,--dynamicbase"
  1055. AC_MSG_CHECKING([whether the linker supports DllCharacteristics])
  1056. AC_LINK_IFELSE([AC_LANG_PROGRAM([])],
  1057. [AC_MSG_RESULT([yes])]
  1058. [save_LDFLAGS="$save_LDFLAGS $LDFLAGS"],
  1059. [AC_MSG_RESULT([no])]
  1060. )
  1061. LDFLAGS="$save_LDFLAGS"
  1062. fi
  1063. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  1064. # than autoconf's macros like.
  1065. if test "$GCC" = yes; then
  1066. # Disable GCC's strict aliasing checks. They are an hours-to-debug
  1067. # accident waiting to happen.
  1068. CFLAGS="$CFLAGS -Wall -fno-strict-aliasing"
  1069. else
  1070. # Autoconf sets -g -O2 by default. Override optimization level
  1071. # for non-gcc compilers
  1072. CFLAGS="$CFLAGS -O"
  1073. enable_gcc_warnings=no
  1074. enable_gcc_warnings_advisory=no
  1075. fi
  1076. # OS X Lion started deprecating the system openssl. Let's just disable
  1077. # all deprecation warnings on OS X. Also, to potentially make the binary
  1078. # a little smaller, let's enable dead_strip.
  1079. case "$host_os" in
  1080. darwin*)
  1081. CFLAGS="$CFLAGS -Wno-deprecated-declarations"
  1082. LDFLAGS="$LDFLAGS -dead_strip" ;;
  1083. esac
  1084. # Add some more warnings which we use in development but not in the
  1085. # released versions. (Some relevant gcc versions can't handle these.)
  1086. if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
  1087. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1088. #if !defined(__GNUC__) || (__GNUC__ < 4)
  1089. #error
  1090. #endif])], have_gcc4=yes, have_gcc4=no)
  1091. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1092. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  1093. #error
  1094. #endif])], have_gcc42=yes, have_gcc42=no)
  1095. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1096. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
  1097. #error
  1098. #endif])], have_gcc43=yes, have_gcc43=no)
  1099. save_CFLAGS="$CFLAGS"
  1100. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  1101. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], have_shorten64_flag=yes,
  1102. have_shorten64_flag=no)
  1103. CFLAGS="$save_CFLAGS"
  1104. case $host in
  1105. *-*-openbsd*)
  1106. # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default.
  1107. # That's fine, except that the headers don't pass -Wredundant-decls.
  1108. # Therefore, let's disable -Wsystem-headers when we're building
  1109. # with maximal warnings on OpenBSD.
  1110. CFLAGS="$CFLAGS -Wno-system-headers" ;;
  1111. esac
  1112. CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith"
  1113. CFLAGS="$CFLAGS -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings"
  1114. CFLAGS="$CFLAGS -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2"
  1115. CFLAGS="$CFLAGS -Wwrite-strings -Wmissing-declarations -Wredundant-decls"
  1116. CFLAGS="$CFLAGS -Wnested-externs -Wbad-function-cast -Wswitch-enum"
  1117. if test x$enable_gcc_warnings = xyes; then
  1118. CFLAGS="$CFLAGS -Werror"
  1119. fi
  1120. # Disabled, so we can use mallinfo(): -Waggregate-return
  1121. if test x$have_gcc4 = xyes ; then
  1122. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  1123. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  1124. fi
  1125. if test x$have_gcc42 = xyes ; then
  1126. # These warnings break gcc 4.0.2 and work on gcc 4.2
  1127. # XXXX020 See if any of these work with earlier versions.
  1128. CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wstrict-overflow=1"
  1129. # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
  1130. fi
  1131. if test x$have_gcc42 = xyes && test x$have_clang = xno; then
  1132. # These warnings break gcc 4.0.2 and clang, but work on gcc 4.2
  1133. CFLAGS="$CFLAGS -Wnormalized=id -Woverride-init"
  1134. fi
  1135. if test x$have_gcc43 = xyes ; then
  1136. # These warnings break gcc 4.2 and work on gcc 4.3
  1137. # XXXX020 See if any of these work with earlier versions.
  1138. CFLAGS="$CFLAGS -Wextra -Warray-bounds"
  1139. fi
  1140. if test x$have_shorten64_flag = xyes ; then
  1141. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  1142. fi
  1143. ##This will break the world on some 64-bit architectures
  1144. # CFLAGS="$CFLAGS -Winline"
  1145. fi
  1146. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
  1147. AC_CONFIG_FILES([
  1148. Doxyfile
  1149. Makefile
  1150. contrib/Makefile
  1151. contrib/suse/Makefile
  1152. contrib/suse/tor.sh
  1153. contrib/tor.logrotate
  1154. contrib/tor.sh
  1155. contrib/torctl
  1156. contrib/torify
  1157. doc/Makefile
  1158. src/Makefile
  1159. src/common/Makefile
  1160. src/config/Makefile
  1161. src/config/torrc.sample
  1162. src/or/Makefile
  1163. src/test/Makefile
  1164. src/tools/Makefile
  1165. src/tools/tor-fw-helper/Makefile
  1166. src/win32/Makefile
  1167. tor.spec
  1168. ])
  1169. AC_OUTPUT
  1170. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  1171. ./contrib/updateVersions.pl
  1172. fi