configure.in 38 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118111911201121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190119111921193119411951196119711981199120012011202120312041205120612071208120912101211121212131214121512161217121812191220122112221223122412251226122712281229123012311232123312341235123612371238123912401241124212431244124512461247124812491250125112521253125412551256125712581259126012611262
  1. dnl Copyright (c) 2001-2004, Roger Dingledine
  2. dnl Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson
  3. dnl Copyright (c) 2007-2008, The Tor Project, Inc.
  4. dnl See LICENSE for licensing information
  5. AC_INIT
  6. AM_INIT_AUTOMAKE(tor, 0.2.3.7-alpha)
  7. AM_CONFIG_HEADER(orconfig.h)
  8. AC_CANONICAL_HOST
  9. if test -f /etc/redhat-release ; then
  10. if test -f /usr/kerberos/include ; then
  11. CPPFLAGS="$CPPFLAGS -I/usr/kerberos/include"
  12. fi
  13. fi
  14. # Not a no-op; we want to make sure that CPPFLAGS is set before we use
  15. # the += operator on it in src/or/Makefile.am
  16. CPPFLAGS="$CPPFLAGS -I\${top_srcdir}/src/common"
  17. #XXXX020 We should make these enabled or not, before 0.2.0.x-final
  18. AC_ARG_ENABLE(buf-freelists,
  19. AS_HELP_STRING(--disable-buf-freelists, disable freelists for buffer RAM))
  20. AC_ARG_ENABLE(openbsd-malloc,
  21. AS_HELP_STRING(--enable-openbsd-malloc, Use malloc code from openbsd. Linux only))
  22. AC_ARG_ENABLE(instrument-downloads,
  23. AS_HELP_STRING(--enable-instrument-downloads, Instrument downloads of directory resources etc.))
  24. AC_ARG_ENABLE(static-openssl,
  25. AS_HELP_STRING(--enable-static-openssl, Link against a static openssl library. Requires --with-openssl-dir))
  26. AC_ARG_ENABLE(static-libevent,
  27. AS_HELP_STRING(--enable-static-libevent, Link against a static libevent library. Requires --with-libevent-dir))
  28. AC_ARG_ENABLE(static-zlib,
  29. AS_HELP_STRING(--enable-static-zlib, Link against a static zlib library. Requires --with-zlib-dir))
  30. AC_ARG_ENABLE(static-tor,
  31. AS_HELP_STRING(--enable-static-tor, Create an entirely static Tor binary. Requires --with-openssl-dir and --with-libevent-dir and --with-zlib-dir))
  32. if test "$enable_static_tor" = "yes"; then
  33. enable_static_libevent="yes";
  34. enable_static_openssl="yes";
  35. enable_static_zlib="yes";
  36. CFLAGS="$CFLAGS -static"
  37. fi
  38. if test x$enable_buf_freelists != xno; then
  39. AC_DEFINE(ENABLE_BUF_FREELISTS, 1,
  40. [Defined if we try to use freelists for buffer RAM chunks])
  41. fi
  42. AM_CONDITIONAL(USE_OPENBSD_MALLOC, test x$enable_openbsd_malloc = xyes)
  43. if test x$enable_instrument_downloads = xyes; then
  44. AC_DEFINE(INSTRUMENT_DOWNLOADS, 1,
  45. [Defined if we want to keep track of how much of each kind of resource we download.])
  46. fi
  47. AC_ARG_ENABLE(transparent,
  48. AS_HELP_STRING(--disable-transparent, disable transparent proxy support),
  49. [case "${enableval}" in
  50. yes) transparent=true ;;
  51. no) transparent=false ;;
  52. *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
  53. esac], [transparent=true])
  54. AC_ARG_ENABLE(asciidoc,
  55. AS_HELP_STRING(--disable-asciidoc, don't use asciidoc (disables building of manpages)),
  56. [case "${enableval}" in
  57. yes) asciidoc=true ;;
  58. no) asciidoc=false ;;
  59. *) AC_MSG_ERROR(bad value for --disable-asciidoc) ;;
  60. esac], [asciidoc=true])
  61. # By default, we're not ready to ship a NAT-PMP aware Tor
  62. AC_ARG_ENABLE(nat-pmp,
  63. AS_HELP_STRING(--enable-nat-pmp, enable NAT-PMP support),
  64. [case "${enableval}" in
  65. yes) natpmp=true ;;
  66. no) natpmp=false ;;
  67. * ) AC_MSG_ERROR(bad value for --enable-nat-pmp) ;;
  68. esac], [natpmp=false])
  69. # By default, we're not ready to ship a UPnP aware Tor
  70. AC_ARG_ENABLE(upnp,
  71. AS_HELP_STRING(--enable-upnp, enable UPnP support),
  72. [case "${enableval}" in
  73. yes) upnp=true ;;
  74. no) upnp=false ;;
  75. * ) AC_MSG_ERROR(bad value for --enable-upnp) ;;
  76. esac], [upnp=false])
  77. AC_ARG_ENABLE(threads,
  78. AS_HELP_STRING(--disable-threads, disable multi-threading support))
  79. if test x$enable_threads = x; then
  80. case $host in
  81. *-*-solaris* )
  82. # Don't try multithreading on solaris -- cpuworkers seem to lock.
  83. AC_MSG_NOTICE([You are running Solaris; Sometimes threading makes
  84. cpu workers lock up here, so I will disable threads.])
  85. enable_threads="no";;
  86. *)
  87. enable_threads="yes";;
  88. esac
  89. fi
  90. if test "$enable_threads" = "yes"; then
  91. AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
  92. fi
  93. case $host in
  94. *-*-solaris* )
  95. AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
  96. ;;
  97. esac
  98. AC_ARG_ENABLE(gcc-warnings,
  99. AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
  100. AC_ARG_ENABLE(gcc-warnings-advisory,
  101. AS_HELP_STRING(--enable-gcc-warnings-advisory, [enable verbose warnings, excluding -Werror]))
  102. dnl Adam shostack suggests the following for Windows:
  103. dnl -D_FORTIFY_SOURCE=2 -fstack-protector-all
  104. dnl Others suggest '/gs /safeseh /nxcompat /dynamicbase' for non-gcc on Windows
  105. dnl This requires that we use gcc and that we add -O2 to the CFLAGS.
  106. AC_ARG_ENABLE(gcc-hardening,
  107. AS_HELP_STRING(--enable-gcc-hardening, enable compiler security checks),
  108. [if test x$enableval = xyes; then
  109. CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector-all"
  110. CFLAGS="$CFLAGS -fwrapv -fPIE -Wstack-protector"
  111. CFLAGS="$CFLAGS --param ssp-buffer-size=1"
  112. LDFLAGS="$LDFLAGS -pie"
  113. fi])
  114. dnl Linker hardening options
  115. dnl Currently these options are ELF specific - you can't use this with MacOSX
  116. AC_ARG_ENABLE(linker-hardening,
  117. AS_HELP_STRING(--enable-linker-hardening, enable linker security fixups),
  118. [if test x$enableval = xyes; then
  119. LDFLAGS="$LDFLAGS -z relro -z now"
  120. fi])
  121. AC_ARG_ENABLE(local-appdata,
  122. AS_HELP_STRING(--enable-local-appdata, default to host local application data paths on Windows))
  123. if test "$enable_local_appdata" = "yes"; then
  124. AC_DEFINE(ENABLE_LOCAL_APPDATA, 1,
  125. [Defined if we default to host local appdata paths on Windows])
  126. fi
  127. AC_ARG_ENABLE(bufferevents,
  128. AS_HELP_STRING(--enable-bufferevents, use Libevent's buffered IO.))
  129. dnl check for the correct "ar" when cross-compiling
  130. AN_MAKEVAR([AR], [AC_PROG_AR])
  131. AN_PROGRAM([ar], [AC_PROG_AR])
  132. AC_DEFUN([AC_PROG_AR], [AC_CHECK_TOOL([AR], [ar], [ar])])
  133. AC_PROG_AR
  134. AC_PROG_CC
  135. AC_PROG_CPP
  136. AC_PROG_MAKE_SET
  137. AC_PROG_RANLIB
  138. dnl autoconf 2.59 appears not to support AC_PROG_SED
  139. AC_CHECK_PROG([SED],[sed],[sed],[/bin/false])
  140. dnl check for asciidoc and a2x
  141. AC_PATH_PROG([ASCIIDOC], [asciidoc], none)
  142. AC_PATH_PROG([A2X], [a2x], none)
  143. AM_CONDITIONAL(USE_ASCIIDOC, test x$asciidoc = xtrue)
  144. AM_CONDITIONAL(USE_FW_HELPER, test x$natpmp = xtrue || test x$upnp = xtrue)
  145. AM_CONDITIONAL(NAT_PMP, test x$natpmp = xtrue)
  146. AM_CONDITIONAL(MINIUPNPC, test x$upnp = xtrue)
  147. AM_PROG_CC_C_O
  148. ifdef([AC_C_FLEXIBLE_ARRAY_MEMBER], [
  149. AC_C_FLEXIBLE_ARRAY_MEMBER
  150. ], [
  151. dnl Maybe we've got an old autoconf...
  152. AC_CACHE_CHECK([for flexible array members],
  153. tor_cv_c_flexarray,
  154. [AC_COMPILE_IFELSE(
  155. AC_LANG_PROGRAM([
  156. struct abc { int a; char b[]; };
  157. ], [
  158. struct abc *def = malloc(sizeof(struct abc)+sizeof(char));
  159. def->b[0] = 33;
  160. ]),
  161. [tor_cv_c_flexarray=yes],
  162. [tor_cv_c_flexarray=no])])
  163. if test $tor_cv_flexarray = yes ; then
  164. AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [], [Define to nothing if C supports flexible array members, and to 1 if it does not.])
  165. else
  166. AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [1], [Define to nothing if C supports flexible array members, and to 1 if it does not.])
  167. fi
  168. ])
  169. AC_PATH_PROG([SHA1SUM], [sha1sum], none)
  170. AC_PATH_PROG([OPENSSL], [openssl], none)
  171. TORUSER=_tor
  172. AC_ARG_WITH(tor-user,
  173. [ --with-tor-user=NAME Specify username for tor daemon ],
  174. [
  175. TORUSER=$withval
  176. ]
  177. )
  178. AC_SUBST(TORUSER)
  179. TORGROUP=_tor
  180. AC_ARG_WITH(tor-group,
  181. [ --with-tor-group=NAME Specify group name for tor daemon ],
  182. [
  183. TORGROUP=$withval
  184. ]
  185. )
  186. AC_SUBST(TORGROUP)
  187. dnl If WIN32 is defined and non-zero, we are building for win32
  188. AC_MSG_CHECKING([for win32])
  189. AC_RUN_IFELSE([AC_LANG_SOURCE([
  190. int main(int c, char **v) {
  191. #ifdef WIN32
  192. #if WIN32
  193. return 0;
  194. #else
  195. return 1;
  196. #endif
  197. #else
  198. return 2;
  199. #endif
  200. }])],
  201. bwin32=true; AC_MSG_RESULT([yes]),
  202. bwin32=false; AC_MSG_RESULT([no]),
  203. bwin32=cross; AC_MSG_RESULT([cross])
  204. )
  205. if test "$bwin32" = cross; then
  206. AC_MSG_CHECKING([for win32 (cross)])
  207. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  208. #ifdef WIN32
  209. int main(int c, char **v) {return 0;}
  210. #else
  211. #error
  212. int main(int c, char **v) {return x(y);}
  213. #endif
  214. ])],
  215. bwin32=true; AC_MSG_RESULT([yes]),
  216. bwin32=false; AC_MSG_RESULT([no]))
  217. fi
  218. if test "$bwin32" = true; then
  219. AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
  220. fi
  221. AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
  222. dnl Enable C99 when compiling with MIPSpro
  223. AC_MSG_CHECKING([for MIPSpro compiler])
  224. AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [
  225. #if (defined(__sgi) && defined(_COMPILER_VERSION))
  226. #error
  227. return x(y);
  228. #endif
  229. ])],
  230. bmipspro=false; AC_MSG_RESULT(no),
  231. bmipspro=true; AC_MSG_RESULT(yes))
  232. if test "$bmipspro" = true; then
  233. CFLAGS="$CFLAGS -c99"
  234. fi
  235. AC_C_BIGENDIAN
  236. AC_SEARCH_LIBS(socket, [socket])
  237. AC_SEARCH_LIBS(gethostbyname, [nsl])
  238. AC_SEARCH_LIBS(dlopen, [dl])
  239. AC_SEARCH_LIBS(inet_aton, [resolv])
  240. if test "$enable_threads" = "yes"; then
  241. AC_SEARCH_LIBS(pthread_create, [pthread])
  242. AC_SEARCH_LIBS(pthread_detach, [pthread])
  243. fi
  244. dnl -------------------------------------------------------------------
  245. dnl Check for functions before libevent, since libevent-1.2 apparently
  246. dnl exports strlcpy without defining it in a header.
  247. AC_CHECK_FUNCS(
  248. accept4 \
  249. flock \
  250. ftime \
  251. getaddrinfo \
  252. getrlimit \
  253. gettimeofday \
  254. gmtime_r \
  255. inet_aton \
  256. localtime_r \
  257. lround \
  258. memmem \
  259. prctl \
  260. rint \
  261. socketpair \
  262. strlcat \
  263. strlcpy \
  264. strptime \
  265. strtok_r \
  266. strtoull \
  267. sysconf \
  268. uname \
  269. vasprintf \
  270. )
  271. using_custom_malloc=no
  272. if test x$enable_openbsd_malloc = xyes ; then
  273. AC_DEFINE(HAVE_MALLOC_GOOD_SIZE, 1, [Defined if we have the malloc_good_size function])
  274. using_custom_malloc=yes
  275. fi
  276. if test x$tcmalloc = xyes ; then
  277. using_custom_malloc=yes
  278. fi
  279. if test $using_custom_malloc = no ; then
  280. AC_CHECK_FUNCS(mallinfo malloc_good_size malloc_usable_size)
  281. fi
  282. if test "$enable_threads" = "yes"; then
  283. AC_CHECK_HEADERS(pthread.h)
  284. AC_CHECK_FUNCS(pthread_create)
  285. fi
  286. dnl ------------------------------------------------------
  287. dnl Where do you live, libevent? And how do we call you?
  288. if test "$bwin32" = true; then
  289. TOR_LIB_WS32=-lws2_32
  290. TOR_LIB_IPHLPAPI=-liphlpapi
  291. # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  292. # think it's actually necessary.
  293. TOR_LIB_GDI=-lgdi32
  294. else
  295. TOR_LIB_WS32=
  296. TOR_LIB_GDI=
  297. fi
  298. AC_SUBST(TOR_LIB_WS32)
  299. AC_SUBST(TOR_LIB_GDI)
  300. AC_SUBST(TOR_LIB_IPHLPAPI)
  301. dnl We need to do this before we try our disgusting hack below.
  302. AC_CHECK_HEADERS([sys/types.h])
  303. dnl This is a disgusting hack so we safely include older libevent headers.
  304. AC_CHECK_TYPE(u_int64_t, unsigned long long)
  305. AC_CHECK_TYPE(u_int32_t, unsigned long)
  306. AC_CHECK_TYPE(u_int16_t, unsigned short)
  307. AC_CHECK_TYPE(u_int8_t, unsigned char)
  308. tor_libevent_pkg_redhat="libevent"
  309. tor_libevent_pkg_debian="libevent-dev"
  310. tor_libevent_devpkg_redhat="libevent-devel"
  311. tor_libevent_devpkg_debian="libevent-dev"
  312. dnl On Gnu/Linux or any place we require it, we'll add librt to the Libevent
  313. dnl linking for static builds.
  314. STATIC_LIBEVENT_FLAGS=""
  315. if test "$enable_static_libevent" = "yes"; then
  316. dnl Determine if we have clock_gettime in librt
  317. AC_SEARCH_LIBS([clock_gettime], [rt],
  318. [have_rt=yes])
  319. if test "$have_rt" = yes; then
  320. STATIC_LIBEVENT_FLAGS=" -lrt "
  321. fi
  322. fi
  323. TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32], [
  324. #ifdef WIN32
  325. #include <winsock2.h>
  326. #endif
  327. #include <stdlib.h>
  328. #include <sys/time.h>
  329. #include <sys/types.h>
  330. #include <event.h>], [
  331. #ifdef WIN32
  332. #include <winsock2.h>
  333. #endif
  334. void exit(int); void *event_init(void);],
  335. [
  336. #ifdef WIN32
  337. {WSADATA d; WSAStartup(0x101,&d); }
  338. #endif
  339. event_init(); exit(0);
  340. ], [--with-libevent-dir], [/opt/libevent])
  341. dnl Now check for particular libevent functions.
  342. save_LIBS="$LIBS"
  343. save_LDFLAGS="$LDFLAGS"
  344. save_CPPFLAGS="$CPPFLAGS"
  345. LIBS="-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32 $LIBS"
  346. LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
  347. CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
  348. AC_CHECK_FUNCS(event_get_version event_get_version_number event_get_method event_set_log_callback evdns_set_outgoing_bind_address event_base_loopexit)
  349. AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
  350. [#include <event.h>
  351. ])
  352. AC_CHECK_HEADERS(event2/event.h event2/dns.h event2/bufferevent_ssl.h)
  353. LIBS="$save_LIBS"
  354. LDFLAGS="$save_LDFLAGS"
  355. CPPFLAGS="$save_CPPFLAGS"
  356. AM_CONDITIONAL(USE_EXTERNAL_EVDNS, test x$ac_cv_header_event2_dns_h = xyes)
  357. if test "$enable_static_libevent" = "yes"; then
  358. if test "$tor_cv_library_libevent_dir" = "(system)"; then
  359. AC_MSG_ERROR("You must specify an explicit --with-libevent-dir=x option when using --enable-static-libevent")
  360. else
  361. TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent.a $STATIC_LIBEVENT_FLAGS"
  362. fi
  363. else
  364. TOR_LIBEVENT_LIBS="-levent"
  365. fi
  366. dnl This isn't the best test for Libevent 2.0.3-alpha. Once it's released,
  367. dnl we can do much better.
  368. if test "$enable_bufferevents" = "yes" ; then
  369. if test "$ac_cv_header_event2_bufferevent_ssl_h" != "yes" ; then
  370. AC_MSG_ERROR([You've asked for bufferevent support, but you're using a version of Libevent without SSL support. This won't work. We need Libevent 2.0.8-rc or later, and you don't seem to even have Libevent 2.0.3-alpha.])
  371. else
  372. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent"
  373. # Check for the right version. First see if version detection works.
  374. AC_MSG_CHECKING([whether we can detect the Libevent version])
  375. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  376. #include <event2/event.h>
  377. #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 10
  378. #error
  379. int x = y(zz);
  380. #else
  381. int x = 1;
  382. #endif
  383. ])], [event_version_number_works=yes; AC_MSG_RESULT([yes]) ],
  384. [event_version_number_works=no; AC_MSG_RESULT([no])])
  385. if test "$event_version_number_works" != 'yes'; then
  386. AC_MSG_WARN([Version detection on Libevent seems broken. Your Libevent installation is probably screwed up or very old.])
  387. else
  388. AC_MSG_CHECKING([whether Libevent is new enough for bufferevents])
  389. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  390. #include <event2/event.h>
  391. #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 0x02000d00
  392. #error
  393. int x = y(zz);
  394. #else
  395. int x = 1;
  396. #endif
  397. ])], [ AC_MSG_RESULT([yes]) ],
  398. [ AC_MSG_RESULT([no])
  399. AC_MSG_ERROR([Libevent does not seem new enough to support bufferevents. We require 2.0.13-stable or later]) ] )
  400. fi
  401. fi
  402. fi
  403. LIBS="$save_LIBS"
  404. LDFLAGS="$save_LDFLAGS"
  405. CPPFLAGS="$save_CPPFLAGS"
  406. AM_CONDITIONAL(USE_BUFFEREVENTS, test "$enable_bufferevents" = "yes")
  407. if test "$enable_bufferevents" = "yes"; then
  408. AC_DEFINE(USE_BUFFEREVENTS, 1, [Defined if we're going to use Libevent's buffered IO API])
  409. if test "$enable_static_libevent" = "yes"; then
  410. TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent_openssl.a $TOR_LIBEVENT_LIBS"
  411. else
  412. TOR_LIBEVENT_LIBS="-levent_openssl $TOR_LIBEVENT_LIBS"
  413. fi
  414. fi
  415. AC_SUBST(TOR_LIBEVENT_LIBS)
  416. dnl ------------------------------------------------------
  417. dnl Where do you live, openssl? And how do we call you?
  418. tor_openssl_pkg_redhat="openssl"
  419. tor_openssl_pkg_debian="libssl"
  420. tor_openssl_devpkg_redhat="openssl-devel"
  421. tor_openssl_devpkg_debian="libssl-dev"
  422. ALT_openssl_WITHVAL=""
  423. AC_ARG_WITH(ssl-dir,
  424. [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
  425. [
  426. if test "x$withval" != xno && test "x$withval" != "x" ; then
  427. ALT_openssl_WITHVAL="$withval"
  428. fi
  429. ])
  430. TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
  431. [#include <openssl/rand.h>],
  432. [void RAND_add(const void *buf, int num, double entropy);],
  433. [RAND_add((void*)0,0,0); exit(0);], [],
  434. [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
  435. dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
  436. echo "tor_cv_library_openssl_dir is $tor_cv_library_openssl_dir"
  437. if test "$enable_static_openssl" = "yes"; then
  438. if test "$tor_cv_library_openssl_dir" = "(system)"; then
  439. AC_MSG_ERROR("You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl")
  440. else
  441. TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a"
  442. fi
  443. else
  444. TOR_OPENSSL_LIBS="-lssl -lcrypto"
  445. fi
  446. AC_SUBST(TOR_OPENSSL_LIBS)
  447. dnl ------------------------------------------------------
  448. dnl Where do you live, zlib? And how do we call you?
  449. tor_zlib_pkg_redhat="zlib"
  450. tor_zlib_pkg_debian="zlib1g"
  451. tor_zlib_devpkg_redhat="zlib-devel"
  452. tor_zlib_devpkg_debian="zlib1g-dev"
  453. TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
  454. [#include <zlib.h>],
  455. [const char * zlibVersion(void);],
  456. [zlibVersion(); exit(0);], [--with-zlib-dir],
  457. [/opt/zlib])
  458. if test "$enable_static_zlib" = "yes"; then
  459. if test "$tor_cv_library_zlib_dir" = "(system)"; then
  460. AC_MSG_ERROR("You must specify an explicit --with-zlib-dir=x option when
  461. using --enable-static-zlib")
  462. else
  463. TOR_ZLIB_LIBS="$TOR_LIBDIR_zlib/libz.a"
  464. echo "$TOR_LIBDIR_zlib/libz.a"
  465. fi
  466. else
  467. TOR_ZLIB_LIBS="-lz"
  468. fi
  469. AC_SUBST(TOR_ZLIB_LIBS)
  470. dnl Make sure to enable support for large off_t if available.
  471. dnl ------------------------------------------------------
  472. dnl Where do you live, libnatpmp? And how do we call you?
  473. dnl There are no packages for Debian or Redhat as of this patch
  474. if test "$natpmp" = "true"; then
  475. AC_DEFINE(NAT_PMP, 1, [Define to 1 if we are building with nat-pmp.])
  476. TOR_SEARCH_LIBRARY(libnatpmp, $trylibnatpmpdir, [-lnatpmp],
  477. [#include <natpmp.h>],
  478. [#include <natpmp.h>],
  479. [ int r;
  480. natpmp_t natpmp;
  481. natpmpresp_t response;
  482. r = initnatpmp(&natpmp, 0, 0);],
  483. [printf("initnatpmp() returned %d (%s)\n", r, r?"FAILED":"SUCCESS");
  484. exit(0);],
  485. [--with-libnatpmp-dir],
  486. [/usr/lib/])
  487. fi
  488. dnl ------------------------------------------------------
  489. dnl Where do you live, libminiupnpc? And how do we call you?
  490. dnl There are no packages for Debian or Redhat as of this patch
  491. if test "$upnp" = "true"; then
  492. AC_DEFINE(MINIUPNPC, 1, [Define to 1 if we are building with UPnP.])
  493. TOR_SEARCH_LIBRARY(libminiupnpc, $trylibminiupnpcdir, [-lminiupnpc $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
  494. [#include <miniupnpc/miniwget.h>
  495. #include <miniupnpc/miniupnpc.h>
  496. #include <miniupnpc/upnpcommands.h>],
  497. [void upnpDiscover(int delay, const char * multicastif,
  498. const char * minissdpdsock, int sameport);],
  499. [upnpDiscover(1, 0, 0, 0); exit(0);],
  500. [--with-libminiupnpc-dir],
  501. [/usr/lib/])
  502. fi
  503. AC_SYS_LARGEFILE
  504. AC_CHECK_HEADERS(
  505. assert.h \
  506. errno.h \
  507. fcntl.h \
  508. signal.h \
  509. string.h \
  510. sys/fcntl.h \
  511. sys/stat.h \
  512. sys/time.h \
  513. sys/types.h \
  514. time.h \
  515. unistd.h
  516. , , 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.))
  517. dnl These headers are not essential
  518. AC_CHECK_HEADERS(
  519. arpa/inet.h \
  520. grp.h \
  521. inttypes.h \
  522. limits.h \
  523. linux/types.h \
  524. machine/limits.h \
  525. malloc.h \
  526. malloc/malloc.h \
  527. malloc_np.h \
  528. netdb.h \
  529. netinet/in.h \
  530. netinet/in6.h \
  531. pwd.h \
  532. stdint.h \
  533. sys/file.h \
  534. sys/ioctl.h \
  535. sys/limits.h \
  536. sys/mman.h \
  537. sys/param.h \
  538. sys/prctl.h \
  539. sys/resource.h \
  540. sys/socket.h \
  541. sys/syslimits.h \
  542. sys/time.h \
  543. sys/types.h \
  544. sys/un.h \
  545. sys/utime.h \
  546. sys/wait.h \
  547. syslog.h \
  548. utime.h
  549. )
  550. TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
  551. [#ifdef HAVE_MALLOC_H
  552. #include <malloc.h>
  553. #endif
  554. #ifdef HAVE_MALLOC_MALLOC_H
  555. #include <malloc/malloc.h>
  556. #endif])
  557. AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
  558. [#ifdef HAVE_SYS_TYPES_H
  559. #include <sys/types.h>
  560. #endif
  561. #ifdef HAVE_SYS_SOCKET_H
  562. #include <sys/socket.h>
  563. #endif])
  564. AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
  565. [#ifdef HAVE_SYS_TYPES_H
  566. #include <sys/types.h>
  567. #endif
  568. #ifdef HAVE_SYS_SOCKET_H
  569. #include <sys/socket.h>
  570. #endif
  571. #ifdef HAVE_NET_IF_H
  572. #include <net/if.h>
  573. #endif])
  574. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  575. linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
  576. [#ifdef HAVE_SYS_TYPES_H
  577. #include <sys/types.h>
  578. #endif
  579. #ifdef HAVE_SYS_SOCKET_H
  580. #include <sys/socket.h>
  581. #endif
  582. #ifdef HAVE_LIMITS_H
  583. #include <limits.h>
  584. #endif
  585. #ifdef HAVE_LINUX_TYPES_H
  586. #include <linux/types.h>
  587. #endif
  588. #ifdef HAVE_NETINET_IN6_H
  589. #include <netinet/in6.h>
  590. #endif
  591. #ifdef HAVE_NETINET_IN_H
  592. #include <netinet/in.h>
  593. #endif])
  594. if test x$transparent = xtrue ; then
  595. transparent_ok=0
  596. if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
  597. transparent_ok=1
  598. fi
  599. if test x$linux_netfilter_ipv4 = x1 ; then
  600. transparent_ok=1
  601. fi
  602. if test x$transparent_ok = x1 ; then
  603. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  604. case $host in
  605. *-*-openbsd*)
  606. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  607. esac
  608. else
  609. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  610. fi
  611. fi
  612. AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
  613. [#ifdef HAVE_SYS_TYPES_H
  614. #include <sys/types.h>
  615. #endif
  616. #ifdef HAVE_SYS_TIME_H
  617. #include <sys/time.h>
  618. #endif])
  619. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  620. dnl Watch out.
  621. AC_CHECK_SIZEOF(int8_t)
  622. AC_CHECK_SIZEOF(int16_t)
  623. AC_CHECK_SIZEOF(int32_t)
  624. AC_CHECK_SIZEOF(int64_t)
  625. AC_CHECK_SIZEOF(uint8_t)
  626. AC_CHECK_SIZEOF(uint16_t)
  627. AC_CHECK_SIZEOF(uint32_t)
  628. AC_CHECK_SIZEOF(uint64_t)
  629. AC_CHECK_SIZEOF(intptr_t)
  630. AC_CHECK_SIZEOF(uintptr_t)
  631. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  632. AC_CHECK_SIZEOF(char)
  633. AC_CHECK_SIZEOF(short)
  634. AC_CHECK_SIZEOF(int)
  635. AC_CHECK_SIZEOF(long)
  636. AC_CHECK_SIZEOF(long long)
  637. AC_CHECK_SIZEOF(__int64)
  638. AC_CHECK_SIZEOF(void *)
  639. AC_CHECK_SIZEOF(time_t)
  640. AC_CHECK_SIZEOF(size_t)
  641. AC_CHECK_TYPES([uint, u_char, ssize_t])
  642. dnl used to include sockaddr_storage, but everybody has that.
  643. AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
  644. [#ifdef HAVE_SYS_TYPES_H
  645. #include <sys/types.h>
  646. #endif
  647. #ifdef HAVE_NETINET_IN_H
  648. #include <netinet/in.h>
  649. #endif
  650. #ifdef HAVE_NETINET_IN6_H
  651. #include <netinet/in6.h>
  652. #endif
  653. #ifdef HAVE_SYS_SOCKET_H
  654. #include <sys/socket.h>
  655. #endif
  656. #ifdef MS_WINDOWS
  657. #define WIN32_WINNT 0x400
  658. #define _WIN32_WINNT 0x400
  659. #define WIN32_LEAN_AND_MEAN
  660. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  661. #include <winsock.h>
  662. #else
  663. #include <winsock2.h>
  664. #include <ws2tcpip.h>
  665. #endif
  666. #endif
  667. ])
  668. AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
  669. [#ifdef HAVE_SYS_TYPES_H
  670. #include <sys/types.h>
  671. #endif
  672. #ifdef HAVE_NETINET_IN_H
  673. #include <netinet/in.h>
  674. #endif
  675. #ifdef HAVE_NETINET_IN6_H
  676. #include <netinet/in6.h>
  677. #endif
  678. #ifdef HAVE_SYS_SOCKET_H
  679. #include <sys/socket.h>
  680. #endif
  681. #ifdef MS_WINDOWS
  682. #define WIN32_WINNT 0x400
  683. #define _WIN32_WINNT 0x400
  684. #define WIN32_LEAN_AND_MEAN
  685. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  686. #include <winsock.h>
  687. #else
  688. #include <winsock2.h>
  689. #include <ws2tcpip.h>
  690. #endif
  691. #endif
  692. ])
  693. AC_CHECK_TYPES([rlim_t], , ,
  694. [#ifdef HAVE_SYS_TYPES_H
  695. #include <sys/types.h>
  696. #endif
  697. #ifdef HAVE_SYS_TIME_H
  698. #include <sys/time.h>
  699. #endif
  700. #ifdef HAVE_SYS_RESOURCE_H
  701. #include <sys/resource.h>
  702. #endif
  703. ])
  704. AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
  705. AC_RUN_IFELSE([AC_LANG_SOURCE([
  706. #ifdef HAVE_SYS_TYPES_H
  707. #include <sys/types.h>
  708. #endif
  709. #ifdef HAVE_SYS_TIME_H
  710. #include <sys/time.h>
  711. #endif
  712. #ifdef HAVE_TIME_H
  713. #include <time.h>
  714. #endif
  715. int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }])],
  716. tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes, tor_cv_time_t_signed=cross)
  717. ])
  718. if test "$tor_cv_time_t_signed" = cross; then
  719. AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  720. fi
  721. if test "$tor_cv_time_t_signed" != no; then
  722. AC_DEFINE([TIME_T_IS_SIGNED], 1,
  723. [Define to 1 iff time_t is signed])
  724. fi
  725. AC_CACHE_CHECK([whether size_t is signed], tor_cv_size_t_signed, [
  726. AC_RUN_IFELSE([AC_LANG_SOURCE([
  727. #ifdef HAVE_SYS_TYPES_H
  728. #include <sys/types.h>
  729. #endif
  730. int main(int c, char**v) { if (((size_t)-1)<0) return 1; else return 0; }])],
  731. tor_cv_size_t_signed=no, tor_cv_size_t_signed=yes, tor_cv_size_t_signed=cross)
  732. ])
  733. if test "$tor_cv_size_t_signed" = cross; then
  734. AC_MSG_NOTICE([Cross compiling: assuming that size_t is not signed.])
  735. fi
  736. if test "$tor_cv_size_t_signed" = yes; then
  737. AC_MSG_ERROR([You have a signed size_t; that's grossly nonconformant.])
  738. fi
  739. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  740. #ifdef HAVE_SYS_SOCKET_H
  741. #include <sys/socket.h>
  742. #endif
  743. ])
  744. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  745. AC_CHECK_SIZEOF(cell_t)
  746. # Now make sure that NULL can be represented as zero bytes.
  747. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  748. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  749. [[#include <stdlib.h>
  750. #include <string.h>
  751. #include <stdio.h>
  752. #ifdef HAVE_STDDEF_H
  753. #include <stddef.h>
  754. #endif
  755. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  756. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  757. [tor_cv_null_is_zero=yes],
  758. [tor_cv_null_is_zero=no],
  759. [tor_cv_null_is_zero=cross])])
  760. if test "$tor_cv_null_is_zero" = cross ; then
  761. # Cross-compiling; let's hope that the target isn't raving mad.
  762. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  763. fi
  764. if test "$tor_cv_null_is_zero" != no; then
  765. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  766. [Define to 1 iff memset(0) sets pointers to NULL])
  767. fi
  768. # And what happens when we malloc zero?
  769. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  770. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  771. [[#include <stdlib.h>
  772. #include <string.h>
  773. #include <stdio.h>
  774. #ifdef HAVE_STDDEF_H
  775. #include <stddef.h>
  776. #endif
  777. int main () { return malloc(0)?0:1; }]])],
  778. [tor_cv_malloc_zero_works=yes],
  779. [tor_cv_malloc_zero_works=no],
  780. [tor_cv_malloc_zero_works=cross])])
  781. if test "$tor_cv_malloc_zero_works" = cross; then
  782. # Cross-compiling; let's hope that the target isn't raving mad.
  783. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  784. fi
  785. if test "$tor_cv_malloc_zero_works" = yes; then
  786. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  787. [Define to 1 iff malloc(0) returns a pointer])
  788. fi
  789. # whether we seem to be in a 2s-complement world.
  790. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  791. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  792. [[int main () { int problem = ((-99) != (~99)+1);
  793. return problem ? 1 : 0; }]])],
  794. [tor_cv_twos_complement=yes],
  795. [tor_cv_twos_complement=no],
  796. [tor_cv_twos_complement=cross])])
  797. if test "$tor_cv_twos_complement" = cross ; then
  798. # Cross-compiling; let's hope that the target isn't raving mad.
  799. AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
  800. fi
  801. if test "$tor_cv_twos_complement" != no ; then
  802. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  803. [Define to 1 iff we represent negative integers with two's complement])
  804. fi
  805. # What does shifting a negative value do?
  806. AC_CACHE_CHECK([whether right-shift on negative values does sign-extension], tor_cv_sign_extend,
  807. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  808. [[int main () { int okay = (-60 >> 8) == -1; return okay ? 0 : 1; }]])],
  809. [tor_cv_sign_extend=yes],
  810. [tor_cv_sign_extend=no],
  811. [tor_cv_sign_extend=cross])])
  812. if test "$tor_cv_sign_extend" = cross ; then
  813. # Cross-compiling; let's hope that the target isn't raving mad.
  814. AC_MSG_NOTICE([Cross-compiling: we'll assume that right-shifting negative integers causes sign-extension])
  815. fi
  816. if test "$tor_cv_sign_extend" != no ; then
  817. AC_DEFINE([RSHIFT_DOES_SIGN_EXTEND], 1,
  818. [Define to 1 iff right-shifting a negative value performs sign-extension])
  819. fi
  820. # Whether we should use the dmalloc memory allocation debugging library.
  821. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  822. AC_ARG_WITH(dmalloc,
  823. [ --with-dmalloc Use debug memory allocation library. ],
  824. [if [[ "$withval" = "yes" ]]; then
  825. dmalloc=1
  826. AC_MSG_RESULT(yes)
  827. else
  828. dmalloc=1
  829. AC_MSG_RESULT(no)
  830. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  831. )
  832. if [[ $dmalloc -eq 1 ]]; then
  833. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  834. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  835. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  836. AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
  837. AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
  838. fi
  839. AC_ARG_WITH(tcmalloc,
  840. [ --with-tcmalloc Use tcmalloc memory allocation library. ],
  841. [ tcmalloc=yes ], [ tcmalloc=no ])
  842. if test x$tcmalloc = xyes ; then
  843. LDFLAGS="-ltcmalloc $LDFLAGS"
  844. fi
  845. # By default, we're going to assume we don't have mlockall()
  846. # bionic and other platforms have various broken mlockall subsystems.
  847. # Some systems don't have a working mlockall, some aren't linkable,
  848. # and some have it but don't declare it.
  849. AC_CHECK_FUNCS(mlockall)
  850. AC_CHECK_DECLS([mlockall], , , [
  851. #ifdef HAVE_SYS_MMAN_H
  852. #include <sys/mman.h>
  853. #endif])
  854. # Allow user to specify an alternate syslog facility
  855. AC_ARG_WITH(syslog-facility,
  856. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  857. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  858. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  859. AC_SUBST(LOGFACILITY)
  860. # Check if we have getresuid and getresgid
  861. AC_CHECK_FUNCS(getresuid getresgid)
  862. # Check for gethostbyname_r in all its glorious incompatible versions.
  863. # (This logic is based on that in Python's configure.in)
  864. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  865. [Define this if you have any gethostbyname_r()])
  866. AC_CHECK_FUNC(gethostbyname_r, [
  867. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  868. OLD_CFLAGS=$CFLAGS
  869. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  870. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
  871. #include <netdb.h>
  872. ], [[
  873. char *cp1, *cp2;
  874. struct hostent *h1, *h2;
  875. int i1, i2;
  876. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  877. ]])],[
  878. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  879. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  880. [Define this if gethostbyname_r takes 6 arguments])
  881. AC_MSG_RESULT(6)
  882. ], [
  883. AC_TRY_COMPILE([
  884. #include <netdb.h>
  885. ], [
  886. char *cp1, *cp2;
  887. struct hostent *h1;
  888. int i1, i2;
  889. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  890. ], [
  891. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  892. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  893. [Define this if gethostbyname_r takes 5 arguments])
  894. AC_MSG_RESULT(5)
  895. ], [
  896. AC_TRY_COMPILE([
  897. #include <netdb.h>
  898. ], [
  899. char *cp1;
  900. struct hostent *h1;
  901. struct hostent_data hd;
  902. (void) gethostbyname_r(cp1,h1,&hd);
  903. ], [
  904. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  905. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  906. [Define this if gethostbyname_r takes 3 arguments])
  907. AC_MSG_RESULT(3)
  908. ], [
  909. AC_MSG_RESULT(0)
  910. ])
  911. ])
  912. ])
  913. CFLAGS=$OLD_CFLAGS
  914. ])
  915. AC_CACHE_CHECK([whether the C compiler supports __func__],
  916. tor_cv_have_func_macro,
  917. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  918. #include <stdio.h>
  919. int main(int c, char **v) { puts(__func__); }])],
  920. tor_cv_have_func_macro=yes,
  921. tor_cv_have_func_macro=no))
  922. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  923. tor_cv_have_FUNC_macro,
  924. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  925. #include <stdio.h>
  926. int main(int c, char **v) { puts(__FUNC__); }])],
  927. tor_cv_have_FUNC_macro=yes,
  928. tor_cv_have_FUNC_macro=no))
  929. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  930. tor_cv_have_FUNCTION_macro,
  931. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  932. #include <stdio.h>
  933. int main(int c, char **v) { puts(__FUNCTION__); }])],
  934. tor_cv_have_FUNCTION_macro=yes,
  935. tor_cv_have_FUNCTION_macro=no))
  936. if test "$tor_cv_have_func_macro" = 'yes'; then
  937. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  938. fi
  939. if test "$tor_cv_have_FUNC_macro" = 'yes'; then
  940. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  941. fi
  942. if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
  943. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  944. [Defined if the compiler supports __FUNCTION__])
  945. fi
  946. # $prefix stores the value of the --prefix command line option, or
  947. # NONE if the option wasn't set. In the case that it wasn't set, make
  948. # it be the default, so that we can use it to expand directories now.
  949. if test "x$prefix" = "xNONE"; then
  950. prefix=$ac_default_prefix
  951. fi
  952. # and similarly for $exec_prefix
  953. if test "x$exec_prefix" = "xNONE"; then
  954. exec_prefix=$prefix
  955. fi
  956. if test "x$BUILDDIR" = "x"; then
  957. BUILDDIR=`pwd`
  958. fi
  959. AC_SUBST(BUILDDIR)
  960. AH_TEMPLATE([BUILDDIR],[tor's build directory])
  961. AC_DEFINE_UNQUOTED(BUILDDIR,"$BUILDDIR")
  962. if test "x$CONFDIR" = "x"; then
  963. CONFDIR=`eval echo $sysconfdir/tor`
  964. fi
  965. AC_SUBST(CONFDIR)
  966. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  967. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  968. BINDIR=`eval echo $bindir`
  969. AC_SUBST(BINDIR)
  970. LOCALSTATEDIR=`eval echo $localstatedir`
  971. AC_SUBST(LOCALSTATEDIR)
  972. if test "$bwin32" = true; then
  973. # Test if the linker supports the --nxcompat and --dynamicbase options
  974. # for Windows
  975. save_LDFLAGS="$LDFLAGS"
  976. LDFLAGS="-Wl,--nxcompat -Wl,--dynamicbase"
  977. AC_MSG_CHECKING([whether the linker supports DllCharacteristics])
  978. AC_LINK_IFELSE([AC_LANG_PROGRAM([])],
  979. [AC_MSG_RESULT([yes])]
  980. [save_LDFLAGS="$save_LDFLAGS $LDFLAGS"],
  981. [AC_MSG_RESULT([no])]
  982. )
  983. LDFLAGS="$save_LDFLAGS"
  984. fi
  985. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  986. # than autoconf's macros like.
  987. if test "$GCC" = yes; then
  988. # Disable GCC's strict aliasing checks. They are an hours-to-debug
  989. # accident waiting to happen.
  990. CFLAGS="$CFLAGS -Wall -fno-strict-aliasing"
  991. else
  992. # Autoconf sets -g -O2 by default. Override optimization level
  993. # for non-gcc compilers
  994. CFLAGS="$CFLAGS -O"
  995. enable_gcc_warnings=no
  996. enable_gcc_warnings_advisory=no
  997. fi
  998. # OS X Lion started deprecating the system openssl. Let's just disable
  999. # all deprecation warnings on OS X.
  1000. case "$host_os" in
  1001. darwin*)
  1002. CFLAGS="$CFLAGS -Wno-deprecated-declarations"
  1003. ;;
  1004. esac
  1005. # Add some more warnings which we use in development but not in the
  1006. # released versions. (Some relevant gcc versions can't handle these.)
  1007. if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
  1008. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1009. #if !defined(__GNUC__) || (__GNUC__ < 4)
  1010. #error
  1011. #endif])], have_gcc4=yes, have_gcc4=no)
  1012. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1013. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  1014. #error
  1015. #endif])], have_gcc42=yes, have_gcc42=no)
  1016. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1017. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
  1018. #error
  1019. #endif])], have_gcc43=yes, have_gcc43=no)
  1020. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1021. #if !defined(__clang__) || (__clang_major__ > 2) || (__clang_major__ == 2 && __clang_minor__ > 9)
  1022. #error
  1023. #endif])], have_clang29orlower=yes, have_clang29orlower=no)
  1024. save_CFLAGS="$CFLAGS"
  1025. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  1026. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], have_shorten64_flag=yes,
  1027. have_shorten64_flag=no)
  1028. CFLAGS="$save_CFLAGS"
  1029. case $host in
  1030. *-*-openbsd*)
  1031. # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default.
  1032. # That's fine, except that the headers don't pass -Wredundant-decls.
  1033. # Therefore, let's disable -Wsystem-headers when we're building
  1034. # with maximal warnings on OpenBSD.
  1035. CFLAGS="$CFLAGS -Wno-system-headers" ;;
  1036. esac
  1037. CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith"
  1038. CFLAGS="$CFLAGS -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings"
  1039. CFLAGS="$CFLAGS -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2"
  1040. CFLAGS="$CFLAGS -Wwrite-strings -Wmissing-declarations -Wredundant-decls"
  1041. CFLAGS="$CFLAGS -Wnested-externs -Wbad-function-cast -Wswitch-enum"
  1042. if test x$enable_gcc_warnings = xyes; then
  1043. CFLAGS="$CFLAGS -Werror"
  1044. fi
  1045. # Disabled, so we can use mallinfo(): -Waggregate-return
  1046. if test x$have_gcc4 = xyes ; then
  1047. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  1048. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  1049. fi
  1050. if test x$have_gcc42 = xyes ; then
  1051. # These warnings break gcc 4.0.2 and work on gcc 4.2
  1052. # XXXX020 See if any of these work with earlier versions.
  1053. CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wstrict-overflow=1"
  1054. # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
  1055. fi
  1056. if test x$have_gcc42 = xyes && test x$have_clang29orlower = xno; then
  1057. # These warnings break gcc 4.0.2 and clang, but work on gcc 4.2
  1058. # We only disable these for clang 2.9 and lower, in case they are
  1059. # supported in later versions.
  1060. CFLAGS="$CFLAGS -Wnormalized=id -Woverride-init"
  1061. fi
  1062. if test x$have_gcc43 = xyes ; then
  1063. # These warnings break gcc 4.2 and work on gcc 4.3
  1064. # XXXX020 See if any of these work with earlier versions.
  1065. CFLAGS="$CFLAGS -Wextra -Warray-bounds"
  1066. fi
  1067. if test x$have_shorten64_flag = xyes ; then
  1068. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  1069. fi
  1070. ##This will break the world on some 64-bit architectures
  1071. # CFLAGS="$CFLAGS -Winline"
  1072. fi
  1073. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
  1074. AC_CONFIG_FILES([
  1075. Doxyfile
  1076. Makefile
  1077. contrib/Makefile
  1078. contrib/suse/Makefile
  1079. contrib/suse/tor.sh
  1080. contrib/tor.logrotate
  1081. contrib/tor.sh
  1082. contrib/torctl
  1083. contrib/torify
  1084. doc/Makefile
  1085. src/Makefile
  1086. src/common/Makefile
  1087. src/config/Makefile
  1088. src/config/torrc.sample
  1089. src/or/Makefile
  1090. src/test/Makefile
  1091. src/tools/Makefile
  1092. src/tools/tor-fw-helper/Makefile
  1093. src/win32/Makefile
  1094. tor.spec
  1095. ])
  1096. AC_OUTPUT
  1097. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  1098. ./contrib/updateVersions.pl
  1099. fi