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