configure.in 38 KB

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  1. dnl Copyright (c) 2001-2004, Roger Dingledine
  2. dnl Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson
  3. dnl Copyright (c) 2007-2008, The Tor Project, Inc.
  4. dnl See LICENSE for licensing information
  5. AC_INIT
  6. AM_INIT_AUTOMAKE(tor, 0.2.3.9-alpha-dev)
  7. AM_CONFIG_HEADER(orconfig.h)
  8. AC_CANONICAL_HOST
  9. if test -f /etc/redhat-release ; then
  10. if test -f /usr/kerberos/include ; then
  11. CPPFLAGS="$CPPFLAGS -I/usr/kerberos/include"
  12. fi
  13. fi
  14. # Not a no-op; we want to make sure that CPPFLAGS is set before we use
  15. # the += operator on it in src/or/Makefile.am
  16. CPPFLAGS="$CPPFLAGS -I\${top_srcdir}/src/common"
  17. #XXXX020 We should make these enabled or not, before 0.2.0.x-final
  18. AC_ARG_ENABLE(buf-freelists,
  19. AS_HELP_STRING(--disable-buf-freelists, disable freelists for buffer RAM))
  20. AC_ARG_ENABLE(openbsd-malloc,
  21. AS_HELP_STRING(--enable-openbsd-malloc, Use malloc code from openbsd. Linux only))
  22. AC_ARG_ENABLE(instrument-downloads,
  23. AS_HELP_STRING(--enable-instrument-downloads, Instrument downloads of directory resources etc.))
  24. AC_ARG_ENABLE(static-openssl,
  25. AS_HELP_STRING(--enable-static-openssl, Link against a static openssl library. Requires --with-openssl-dir))
  26. AC_ARG_ENABLE(static-libevent,
  27. AS_HELP_STRING(--enable-static-libevent, Link against a static libevent library. Requires --with-libevent-dir))
  28. AC_ARG_ENABLE(static-zlib,
  29. AS_HELP_STRING(--enable-static-zlib, Link against a static zlib library. Requires --with-zlib-dir))
  30. AC_ARG_ENABLE(static-tor,
  31. AS_HELP_STRING(--enable-static-tor, Create an entirely static Tor binary. Requires --with-openssl-dir and --with-libevent-dir and --with-zlib-dir))
  32. if test "$enable_static_tor" = "yes"; then
  33. enable_static_libevent="yes";
  34. enable_static_openssl="yes";
  35. enable_static_zlib="yes";
  36. CFLAGS="$CFLAGS -static"
  37. fi
  38. if test x$enable_buf_freelists != xno; then
  39. AC_DEFINE(ENABLE_BUF_FREELISTS, 1,
  40. [Defined if we try to use freelists for buffer RAM chunks])
  41. fi
  42. AM_CONDITIONAL(USE_OPENBSD_MALLOC, test x$enable_openbsd_malloc = xyes)
  43. if test x$enable_instrument_downloads = xyes; then
  44. AC_DEFINE(INSTRUMENT_DOWNLOADS, 1,
  45. [Defined if we want to keep track of how much of each kind of resource we download.])
  46. fi
  47. AC_ARG_ENABLE(transparent,
  48. AS_HELP_STRING(--disable-transparent, disable transparent proxy support),
  49. [case "${enableval}" in
  50. yes) transparent=true ;;
  51. no) transparent=false ;;
  52. *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
  53. esac], [transparent=true])
  54. AC_ARG_ENABLE(asciidoc,
  55. AS_HELP_STRING(--disable-asciidoc, don't use asciidoc (disables building of manpages)),
  56. [case "${enableval}" in
  57. yes) asciidoc=true ;;
  58. no) asciidoc=false ;;
  59. *) AC_MSG_ERROR(bad value for --disable-asciidoc) ;;
  60. esac], [asciidoc=true])
  61. # By default, we're not ready to ship a NAT-PMP aware Tor
  62. AC_ARG_ENABLE(nat-pmp,
  63. AS_HELP_STRING(--enable-nat-pmp, enable NAT-PMP support),
  64. [case "${enableval}" in
  65. yes) natpmp=true ;;
  66. no) natpmp=false ;;
  67. * ) AC_MSG_ERROR(bad value for --enable-nat-pmp) ;;
  68. esac], [natpmp=false])
  69. # By default, we're not ready to ship a UPnP aware Tor
  70. AC_ARG_ENABLE(upnp,
  71. AS_HELP_STRING(--enable-upnp, enable UPnP support),
  72. [case "${enableval}" in
  73. yes) upnp=true ;;
  74. no) upnp=false ;;
  75. * ) AC_MSG_ERROR(bad value for --enable-upnp) ;;
  76. esac], [upnp=false])
  77. AC_ARG_ENABLE(threads,
  78. AS_HELP_STRING(--disable-threads, disable multi-threading support))
  79. if test x$enable_threads = x; then
  80. case $host in
  81. *-*-solaris* )
  82. # Don't try multithreading on solaris -- cpuworkers seem to lock.
  83. AC_MSG_NOTICE([You are running Solaris; Sometimes threading makes
  84. cpu workers lock up here, so I will disable threads.])
  85. enable_threads="no";;
  86. *)
  87. enable_threads="yes";;
  88. esac
  89. fi
  90. if test "$enable_threads" = "yes"; then
  91. AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
  92. fi
  93. case $host in
  94. *-*-solaris* )
  95. AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
  96. ;;
  97. esac
  98. AC_ARG_ENABLE(gcc-warnings,
  99. AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
  100. AC_ARG_ENABLE(gcc-warnings-advisory,
  101. AS_HELP_STRING(--enable-gcc-warnings-advisory, [enable verbose warnings, excluding -Werror]))
  102. dnl Adam shostack suggests the following for Windows:
  103. dnl -D_FORTIFY_SOURCE=2 -fstack-protector-all
  104. dnl Others suggest '/gs /safeseh /nxcompat /dynamicbase' for non-gcc on Windows
  105. dnl This requires that we use gcc and that we add -O2 to the CFLAGS.
  106. AC_ARG_ENABLE(gcc-hardening,
  107. AS_HELP_STRING(--enable-gcc-hardening, enable compiler security checks),
  108. [if test x$enableval = xyes; then
  109. CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector-all"
  110. CFLAGS="$CFLAGS -fwrapv -fPIE -Wstack-protector"
  111. CFLAGS="$CFLAGS --param ssp-buffer-size=1"
  112. LDFLAGS="$LDFLAGS -pie"
  113. fi])
  114. dnl Linker hardening options
  115. dnl Currently these options are ELF specific - you can't use this with MacOSX
  116. AC_ARG_ENABLE(linker-hardening,
  117. AS_HELP_STRING(--enable-linker-hardening, enable linker security fixups),
  118. [if test x$enableval = xyes; then
  119. LDFLAGS="$LDFLAGS -z relro -z now"
  120. fi])
  121. AC_ARG_ENABLE(local-appdata,
  122. AS_HELP_STRING(--enable-local-appdata, default to host local application data paths on Windows))
  123. if test "$enable_local_appdata" = "yes"; then
  124. AC_DEFINE(ENABLE_LOCAL_APPDATA, 1,
  125. [Defined if we default to host local appdata paths on Windows])
  126. fi
  127. # Tor2web mode flag
  128. AC_ARG_ENABLE(tor2web-mode,
  129. AS_HELP_STRING(--enable-tor2web-mode, support tor2web non-anonymous mode),
  130. [if test x$enableval = xyes; then
  131. CFLAGS="$CFLAGS -D ENABLE_TOR2WEB_MODE=1"
  132. fi])
  133. AC_ARG_ENABLE(bufferevents,
  134. AS_HELP_STRING(--enable-bufferevents, use Libevent's buffered IO.))
  135. dnl check for the correct "ar" when cross-compiling
  136. AN_MAKEVAR([AR], [AC_PROG_AR])
  137. AN_PROGRAM([ar], [AC_PROG_AR])
  138. AC_DEFUN([AC_PROG_AR], [AC_CHECK_TOOL([AR], [ar], [ar])])
  139. AC_PROG_AR
  140. AC_PROG_CC
  141. AC_PROG_CPP
  142. AC_PROG_MAKE_SET
  143. AC_PROG_RANLIB
  144. dnl autoconf 2.59 appears not to support AC_PROG_SED
  145. AC_CHECK_PROG([SED],[sed],[sed],[/bin/false])
  146. dnl check for asciidoc and a2x
  147. AC_PATH_PROG([ASCIIDOC], [asciidoc], none)
  148. AC_PATH_PROG([A2X], [a2x], none)
  149. AM_CONDITIONAL(USE_ASCIIDOC, test x$asciidoc = xtrue)
  150. AM_CONDITIONAL(USE_FW_HELPER, test x$natpmp = xtrue || test x$upnp = xtrue)
  151. AM_CONDITIONAL(NAT_PMP, test x$natpmp = xtrue)
  152. AM_CONDITIONAL(MINIUPNPC, test x$upnp = xtrue)
  153. AM_PROG_CC_C_O
  154. ifdef([AC_C_FLEXIBLE_ARRAY_MEMBER], [
  155. AC_C_FLEXIBLE_ARRAY_MEMBER
  156. ], [
  157. dnl Maybe we've got an old autoconf...
  158. AC_CACHE_CHECK([for flexible array members],
  159. tor_cv_c_flexarray,
  160. [AC_COMPILE_IFELSE(
  161. AC_LANG_PROGRAM([
  162. struct abc { int a; char b[]; };
  163. ], [
  164. struct abc *def = malloc(sizeof(struct abc)+sizeof(char));
  165. def->b[0] = 33;
  166. ]),
  167. [tor_cv_c_flexarray=yes],
  168. [tor_cv_c_flexarray=no])])
  169. if test $tor_cv_flexarray = yes ; then
  170. AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [], [Define to nothing if C supports flexible array members, and to 1 if it does not.])
  171. else
  172. AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [1], [Define to nothing if C supports flexible array members, and to 1 if it does not.])
  173. fi
  174. ])
  175. AC_PATH_PROG([SHA1SUM], [sha1sum], none)
  176. AC_PATH_PROG([OPENSSL], [openssl], none)
  177. TORUSER=_tor
  178. AC_ARG_WITH(tor-user,
  179. [ --with-tor-user=NAME Specify username for tor daemon ],
  180. [
  181. TORUSER=$withval
  182. ]
  183. )
  184. AC_SUBST(TORUSER)
  185. TORGROUP=_tor
  186. AC_ARG_WITH(tor-group,
  187. [ --with-tor-group=NAME Specify group name for tor daemon ],
  188. [
  189. TORGROUP=$withval
  190. ]
  191. )
  192. AC_SUBST(TORGROUP)
  193. dnl If WIN32 is defined and non-zero, we are building for win32
  194. AC_MSG_CHECKING([for win32])
  195. AC_RUN_IFELSE([AC_LANG_SOURCE([
  196. int main(int c, char **v) {
  197. #ifdef WIN32
  198. #if WIN32
  199. return 0;
  200. #else
  201. return 1;
  202. #endif
  203. #else
  204. return 2;
  205. #endif
  206. }])],
  207. bwin32=true; AC_MSG_RESULT([yes]),
  208. bwin32=false; AC_MSG_RESULT([no]),
  209. bwin32=cross; AC_MSG_RESULT([cross])
  210. )
  211. if test "$bwin32" = cross; then
  212. AC_MSG_CHECKING([for win32 (cross)])
  213. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  214. #ifdef WIN32
  215. int main(int c, char **v) {return 0;}
  216. #else
  217. #error
  218. int main(int c, char **v) {return x(y);}
  219. #endif
  220. ])],
  221. bwin32=true; AC_MSG_RESULT([yes]),
  222. bwin32=false; AC_MSG_RESULT([no]))
  223. fi
  224. if test "$bwin32" = true; then
  225. AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
  226. fi
  227. AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
  228. dnl Enable C99 when compiling with MIPSpro
  229. AC_MSG_CHECKING([for MIPSpro compiler])
  230. AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [
  231. #if (defined(__sgi) && defined(_COMPILER_VERSION))
  232. #error
  233. return x(y);
  234. #endif
  235. ])],
  236. bmipspro=false; AC_MSG_RESULT(no),
  237. bmipspro=true; AC_MSG_RESULT(yes))
  238. if test "$bmipspro" = true; then
  239. CFLAGS="$CFLAGS -c99"
  240. fi
  241. AC_C_BIGENDIAN
  242. AC_SEARCH_LIBS(socket, [socket])
  243. AC_SEARCH_LIBS(gethostbyname, [nsl])
  244. AC_SEARCH_LIBS(dlopen, [dl])
  245. AC_SEARCH_LIBS(inet_aton, [resolv])
  246. AC_SEARCH_LIBS([clock_gettime], [rt], [have_rt=yes])
  247. if test "$enable_threads" = "yes"; then
  248. AC_SEARCH_LIBS(pthread_create, [pthread])
  249. AC_SEARCH_LIBS(pthread_detach, [pthread])
  250. fi
  251. dnl -------------------------------------------------------------------
  252. dnl Check for functions before libevent, since libevent-1.2 apparently
  253. dnl exports strlcpy without defining it in a header.
  254. AC_CHECK_FUNCS(
  255. accept4 \
  256. clock_gettime \
  257. flock \
  258. ftime \
  259. getaddrinfo \
  260. getrlimit \
  261. gettimeofday \
  262. gmtime_r \
  263. inet_aton \
  264. localtime_r \
  265. lround \
  266. memmem \
  267. prctl \
  268. rint \
  269. socketpair \
  270. strlcat \
  271. strlcpy \
  272. strptime \
  273. strtok_r \
  274. strtoull \
  275. sysconf \
  276. uname \
  277. vasprintf \
  278. )
  279. using_custom_malloc=no
  280. if test x$enable_openbsd_malloc = xyes ; then
  281. AC_DEFINE(HAVE_MALLOC_GOOD_SIZE, 1, [Defined if we have the malloc_good_size function])
  282. using_custom_malloc=yes
  283. fi
  284. if test x$tcmalloc = xyes ; then
  285. using_custom_malloc=yes
  286. fi
  287. if test $using_custom_malloc = no ; then
  288. AC_CHECK_FUNCS(mallinfo malloc_good_size malloc_usable_size)
  289. fi
  290. if test "$enable_threads" = "yes"; then
  291. AC_CHECK_HEADERS(pthread.h)
  292. AC_CHECK_FUNCS(pthread_create)
  293. fi
  294. dnl ------------------------------------------------------
  295. dnl Where do you live, libevent? And how do we call you?
  296. if test "$bwin32" = true; then
  297. TOR_LIB_WS32=-lws2_32
  298. TOR_LIB_IPHLPAPI=-liphlpapi
  299. # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  300. # think it's actually necessary.
  301. TOR_LIB_GDI=-lgdi32
  302. else
  303. TOR_LIB_WS32=
  304. TOR_LIB_GDI=
  305. fi
  306. AC_SUBST(TOR_LIB_WS32)
  307. AC_SUBST(TOR_LIB_GDI)
  308. AC_SUBST(TOR_LIB_IPHLPAPI)
  309. dnl We need to do this before we try our disgusting hack below.
  310. AC_CHECK_HEADERS([sys/types.h])
  311. dnl This is a disgusting hack so we safely include older libevent headers.
  312. AC_CHECK_TYPE(u_int64_t, unsigned long long)
  313. AC_CHECK_TYPE(u_int32_t, unsigned long)
  314. AC_CHECK_TYPE(u_int16_t, unsigned short)
  315. AC_CHECK_TYPE(u_int8_t, unsigned char)
  316. tor_libevent_pkg_redhat="libevent"
  317. tor_libevent_pkg_debian="libevent-dev"
  318. tor_libevent_devpkg_redhat="libevent-devel"
  319. tor_libevent_devpkg_debian="libevent-dev"
  320. dnl On Gnu/Linux or any place we require it, we'll add librt to the Libevent
  321. dnl linking for static builds.
  322. STATIC_LIBEVENT_FLAGS=""
  323. if test "$enable_static_libevent" = "yes"; then
  324. if test "$have_rt" = yes; then
  325. STATIC_LIBEVENT_FLAGS=" -lrt "
  326. fi
  327. fi
  328. TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32], [
  329. #ifdef WIN32
  330. #include <winsock2.h>
  331. #endif
  332. #include <stdlib.h>
  333. #include <sys/time.h>
  334. #include <sys/types.h>
  335. #include <event.h>], [
  336. #ifdef WIN32
  337. #include <winsock2.h>
  338. #endif
  339. void exit(int); void *event_init(void);],
  340. [
  341. #ifdef WIN32
  342. {WSADATA d; WSAStartup(0x101,&d); }
  343. #endif
  344. event_init(); exit(0);
  345. ], [--with-libevent-dir], [/opt/libevent])
  346. dnl Now check for particular libevent functions.
  347. save_LIBS="$LIBS"
  348. save_LDFLAGS="$LDFLAGS"
  349. save_CPPFLAGS="$CPPFLAGS"
  350. LIBS="-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32 $LIBS"
  351. LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
  352. CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
  353. AC_CHECK_FUNCS(event_get_version event_get_version_number event_get_method event_set_log_callback evdns_set_outgoing_bind_address event_base_loopexit)
  354. AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
  355. [#include <event.h>
  356. ])
  357. AC_CHECK_HEADERS(event2/event.h event2/dns.h event2/bufferevent_ssl.h)
  358. LIBS="$save_LIBS"
  359. LDFLAGS="$save_LDFLAGS"
  360. CPPFLAGS="$save_CPPFLAGS"
  361. AM_CONDITIONAL(USE_EXTERNAL_EVDNS, test x$ac_cv_header_event2_dns_h = xyes)
  362. if test "$enable_static_libevent" = "yes"; then
  363. if test "$tor_cv_library_libevent_dir" = "(system)"; then
  364. AC_MSG_ERROR("You must specify an explicit --with-libevent-dir=x option when using --enable-static-libevent")
  365. else
  366. TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent.a $STATIC_LIBEVENT_FLAGS"
  367. fi
  368. else
  369. TOR_LIBEVENT_LIBS="-levent"
  370. fi
  371. dnl This isn't the best test for Libevent 2.0.3-alpha. Once it's released,
  372. dnl we can do much better.
  373. if test "$enable_bufferevents" = "yes" ; then
  374. if test "$ac_cv_header_event2_bufferevent_ssl_h" != "yes" ; then
  375. AC_MSG_ERROR([You've asked for bufferevent support, but you're using a version of Libevent without SSL support. This won't work. We need Libevent 2.0.8-rc or later, and you don't seem to even have Libevent 2.0.3-alpha.])
  376. else
  377. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent"
  378. # Check for the right version. First see if version detection works.
  379. AC_MSG_CHECKING([whether we can detect the Libevent version])
  380. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  381. #include <event2/event.h>
  382. #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 10
  383. #error
  384. int x = y(zz);
  385. #else
  386. int x = 1;
  387. #endif
  388. ])], [event_version_number_works=yes; AC_MSG_RESULT([yes]) ],
  389. [event_version_number_works=no; AC_MSG_RESULT([no])])
  390. if test "$event_version_number_works" != 'yes'; then
  391. AC_MSG_WARN([Version detection on Libevent seems broken. Your Libevent installation is probably screwed up or very old.])
  392. else
  393. AC_MSG_CHECKING([whether Libevent is new enough for bufferevents])
  394. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  395. #include <event2/event.h>
  396. #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 0x02000d00
  397. #error
  398. int x = y(zz);
  399. #else
  400. int x = 1;
  401. #endif
  402. ])], [ AC_MSG_RESULT([yes]) ],
  403. [ AC_MSG_RESULT([no])
  404. AC_MSG_ERROR([Libevent does not seem new enough to support bufferevents. We require 2.0.13-stable or later]) ] )
  405. fi
  406. fi
  407. fi
  408. LIBS="$save_LIBS"
  409. LDFLAGS="$save_LDFLAGS"
  410. CPPFLAGS="$save_CPPFLAGS"
  411. AM_CONDITIONAL(USE_BUFFEREVENTS, test "$enable_bufferevents" = "yes")
  412. if test "$enable_bufferevents" = "yes"; then
  413. AC_DEFINE(USE_BUFFEREVENTS, 1, [Defined if we're going to use Libevent's buffered IO API])
  414. if test "$enable_static_libevent" = "yes"; then
  415. TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent_openssl.a $TOR_LIBEVENT_LIBS"
  416. else
  417. TOR_LIBEVENT_LIBS="-levent_openssl $TOR_LIBEVENT_LIBS"
  418. fi
  419. fi
  420. AC_SUBST(TOR_LIBEVENT_LIBS)
  421. dnl ------------------------------------------------------
  422. dnl Where do you live, openssl? And how do we call you?
  423. tor_openssl_pkg_redhat="openssl"
  424. tor_openssl_pkg_debian="libssl"
  425. tor_openssl_devpkg_redhat="openssl-devel"
  426. tor_openssl_devpkg_debian="libssl-dev"
  427. ALT_openssl_WITHVAL=""
  428. AC_ARG_WITH(ssl-dir,
  429. [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
  430. [
  431. if test "x$withval" != xno && test "x$withval" != "x" ; then
  432. ALT_openssl_WITHVAL="$withval"
  433. fi
  434. ])
  435. TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
  436. [#include <openssl/rand.h>],
  437. [void RAND_add(const void *buf, int num, double entropy);],
  438. [RAND_add((void*)0,0,0); exit(0);], [],
  439. [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
  440. dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
  441. echo "tor_cv_library_openssl_dir is $tor_cv_library_openssl_dir"
  442. if test "$enable_static_openssl" = "yes"; then
  443. if test "$tor_cv_library_openssl_dir" = "(system)"; then
  444. AC_MSG_ERROR("You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl")
  445. else
  446. TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a"
  447. fi
  448. else
  449. TOR_OPENSSL_LIBS="-lssl -lcrypto"
  450. fi
  451. AC_SUBST(TOR_OPENSSL_LIBS)
  452. dnl ------------------------------------------------------
  453. dnl Where do you live, zlib? And how do we call you?
  454. tor_zlib_pkg_redhat="zlib"
  455. tor_zlib_pkg_debian="zlib1g"
  456. tor_zlib_devpkg_redhat="zlib-devel"
  457. tor_zlib_devpkg_debian="zlib1g-dev"
  458. TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
  459. [#include <zlib.h>],
  460. [const char * zlibVersion(void);],
  461. [zlibVersion(); exit(0);], [--with-zlib-dir],
  462. [/opt/zlib])
  463. if test "$enable_static_zlib" = "yes"; then
  464. if test "$tor_cv_library_zlib_dir" = "(system)"; then
  465. AC_MSG_ERROR("You must specify an explicit --with-zlib-dir=x option when
  466. using --enable-static-zlib")
  467. else
  468. TOR_ZLIB_LIBS="$TOR_LIBDIR_zlib/libz.a"
  469. echo "$TOR_LIBDIR_zlib/libz.a"
  470. fi
  471. else
  472. TOR_ZLIB_LIBS="-lz"
  473. fi
  474. AC_SUBST(TOR_ZLIB_LIBS)
  475. dnl Make sure to enable support for large off_t if available.
  476. dnl ------------------------------------------------------
  477. dnl Where do you live, libnatpmp? And how do we call you?
  478. dnl There are no packages for Debian or Redhat as of this patch
  479. if test "$natpmp" = "true"; then
  480. AC_DEFINE(NAT_PMP, 1, [Define to 1 if we are building with nat-pmp.])
  481. TOR_SEARCH_LIBRARY(libnatpmp, $trylibnatpmpdir, [-lnatpmp $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
  482. [#include <natpmp.h>],
  483. [#ifdef MS_WINDOWS
  484. #define STATICLIB
  485. #endif
  486. #include <natpmp.h>],
  487. [ int r;
  488. natpmp_t natpmp;
  489. natpmpresp_t response;
  490. r = initnatpmp(&natpmp, 0, 0);],
  491. [printf("initnatpmp() returned %d (%s)\n", r, r?"FAILED":"SUCCESS");
  492. exit(0);],
  493. [--with-libnatpmp-dir],
  494. [/usr/lib/])
  495. fi
  496. dnl ------------------------------------------------------
  497. dnl Where do you live, libminiupnpc? And how do we call you?
  498. dnl There are no packages for Debian or Redhat as of this patch
  499. if test "$upnp" = "true"; then
  500. AC_DEFINE(MINIUPNPC, 1, [Define to 1 if we are building with UPnP.])
  501. TOR_SEARCH_LIBRARY(libminiupnpc, $trylibminiupnpcdir, [-lminiupnpc $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
  502. [#include <miniupnpc/miniwget.h>
  503. #include <miniupnpc/miniupnpc.h>
  504. #include <miniupnpc/upnpcommands.h>],
  505. [void upnpDiscover(int delay, const char * multicastif,
  506. const char * minissdpdsock, int sameport);],
  507. [upnpDiscover(1, 0, 0, 0); exit(0);],
  508. [--with-libminiupnpc-dir],
  509. [/usr/lib/])
  510. fi
  511. AC_SYS_LARGEFILE
  512. AC_CHECK_HEADERS(
  513. assert.h \
  514. errno.h \
  515. fcntl.h \
  516. signal.h \
  517. string.h \
  518. sys/fcntl.h \
  519. sys/stat.h \
  520. sys/time.h \
  521. sys/types.h \
  522. time.h \
  523. unistd.h
  524. , , 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.))
  525. dnl These headers are not essential
  526. AC_CHECK_HEADERS(
  527. arpa/inet.h \
  528. grp.h \
  529. inttypes.h \
  530. limits.h \
  531. linux/types.h \
  532. machine/limits.h \
  533. malloc.h \
  534. malloc/malloc.h \
  535. malloc_np.h \
  536. netdb.h \
  537. netinet/in.h \
  538. netinet/in6.h \
  539. pwd.h \
  540. stdint.h \
  541. sys/file.h \
  542. sys/ioctl.h \
  543. sys/limits.h \
  544. sys/mman.h \
  545. sys/param.h \
  546. sys/prctl.h \
  547. sys/resource.h \
  548. sys/socket.h \
  549. sys/syslimits.h \
  550. sys/time.h \
  551. sys/types.h \
  552. sys/un.h \
  553. sys/utime.h \
  554. sys/wait.h \
  555. syslog.h \
  556. utime.h
  557. )
  558. TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
  559. [#ifdef HAVE_MALLOC_H
  560. #include <malloc.h>
  561. #endif
  562. #ifdef HAVE_MALLOC_MALLOC_H
  563. #include <malloc/malloc.h>
  564. #endif])
  565. AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
  566. [#ifdef HAVE_SYS_TYPES_H
  567. #include <sys/types.h>
  568. #endif
  569. #ifdef HAVE_SYS_SOCKET_H
  570. #include <sys/socket.h>
  571. #endif])
  572. AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
  573. [#ifdef HAVE_SYS_TYPES_H
  574. #include <sys/types.h>
  575. #endif
  576. #ifdef HAVE_SYS_SOCKET_H
  577. #include <sys/socket.h>
  578. #endif
  579. #ifdef HAVE_NET_IF_H
  580. #include <net/if.h>
  581. #endif])
  582. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  583. linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
  584. [#ifdef HAVE_SYS_TYPES_H
  585. #include <sys/types.h>
  586. #endif
  587. #ifdef HAVE_SYS_SOCKET_H
  588. #include <sys/socket.h>
  589. #endif
  590. #ifdef HAVE_LIMITS_H
  591. #include <limits.h>
  592. #endif
  593. #ifdef HAVE_LINUX_TYPES_H
  594. #include <linux/types.h>
  595. #endif
  596. #ifdef HAVE_NETINET_IN6_H
  597. #include <netinet/in6.h>
  598. #endif
  599. #ifdef HAVE_NETINET_IN_H
  600. #include <netinet/in.h>
  601. #endif])
  602. if test x$transparent = xtrue ; then
  603. transparent_ok=0
  604. if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
  605. transparent_ok=1
  606. fi
  607. if test x$linux_netfilter_ipv4 = x1 ; then
  608. transparent_ok=1
  609. fi
  610. if test x$transparent_ok = x1 ; then
  611. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  612. case $host in
  613. *-*-openbsd*)
  614. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  615. esac
  616. else
  617. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  618. fi
  619. fi
  620. AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
  621. [#ifdef HAVE_SYS_TYPES_H
  622. #include <sys/types.h>
  623. #endif
  624. #ifdef HAVE_SYS_TIME_H
  625. #include <sys/time.h>
  626. #endif])
  627. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  628. dnl Watch out.
  629. AC_CHECK_SIZEOF(int8_t)
  630. AC_CHECK_SIZEOF(int16_t)
  631. AC_CHECK_SIZEOF(int32_t)
  632. AC_CHECK_SIZEOF(int64_t)
  633. AC_CHECK_SIZEOF(uint8_t)
  634. AC_CHECK_SIZEOF(uint16_t)
  635. AC_CHECK_SIZEOF(uint32_t)
  636. AC_CHECK_SIZEOF(uint64_t)
  637. AC_CHECK_SIZEOF(intptr_t)
  638. AC_CHECK_SIZEOF(uintptr_t)
  639. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  640. AC_CHECK_SIZEOF(char)
  641. AC_CHECK_SIZEOF(short)
  642. AC_CHECK_SIZEOF(int)
  643. AC_CHECK_SIZEOF(long)
  644. AC_CHECK_SIZEOF(long long)
  645. AC_CHECK_SIZEOF(__int64)
  646. AC_CHECK_SIZEOF(void *)
  647. AC_CHECK_SIZEOF(time_t)
  648. AC_CHECK_SIZEOF(size_t)
  649. AC_CHECK_TYPES([uint, u_char, ssize_t])
  650. dnl used to include sockaddr_storage, but everybody has that.
  651. AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
  652. [#ifdef HAVE_SYS_TYPES_H
  653. #include <sys/types.h>
  654. #endif
  655. #ifdef HAVE_NETINET_IN_H
  656. #include <netinet/in.h>
  657. #endif
  658. #ifdef HAVE_NETINET_IN6_H
  659. #include <netinet/in6.h>
  660. #endif
  661. #ifdef HAVE_SYS_SOCKET_H
  662. #include <sys/socket.h>
  663. #endif
  664. #ifdef MS_WINDOWS
  665. #define WIN32_WINNT 0x400
  666. #define _WIN32_WINNT 0x400
  667. #define WIN32_LEAN_AND_MEAN
  668. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  669. #include <winsock.h>
  670. #else
  671. #include <winsock2.h>
  672. #include <ws2tcpip.h>
  673. #endif
  674. #endif
  675. ])
  676. AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
  677. [#ifdef HAVE_SYS_TYPES_H
  678. #include <sys/types.h>
  679. #endif
  680. #ifdef HAVE_NETINET_IN_H
  681. #include <netinet/in.h>
  682. #endif
  683. #ifdef HAVE_NETINET_IN6_H
  684. #include <netinet/in6.h>
  685. #endif
  686. #ifdef HAVE_SYS_SOCKET_H
  687. #include <sys/socket.h>
  688. #endif
  689. #ifdef MS_WINDOWS
  690. #define WIN32_WINNT 0x400
  691. #define _WIN32_WINNT 0x400
  692. #define WIN32_LEAN_AND_MEAN
  693. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  694. #include <winsock.h>
  695. #else
  696. #include <winsock2.h>
  697. #include <ws2tcpip.h>
  698. #endif
  699. #endif
  700. ])
  701. AC_CHECK_TYPES([rlim_t], , ,
  702. [#ifdef HAVE_SYS_TYPES_H
  703. #include <sys/types.h>
  704. #endif
  705. #ifdef HAVE_SYS_TIME_H
  706. #include <sys/time.h>
  707. #endif
  708. #ifdef HAVE_SYS_RESOURCE_H
  709. #include <sys/resource.h>
  710. #endif
  711. ])
  712. AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
  713. AC_RUN_IFELSE([AC_LANG_SOURCE([
  714. #ifdef HAVE_SYS_TYPES_H
  715. #include <sys/types.h>
  716. #endif
  717. #ifdef HAVE_SYS_TIME_H
  718. #include <sys/time.h>
  719. #endif
  720. #ifdef HAVE_TIME_H
  721. #include <time.h>
  722. #endif
  723. int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }])],
  724. tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes, tor_cv_time_t_signed=cross)
  725. ])
  726. if test "$tor_cv_time_t_signed" = cross; then
  727. AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  728. fi
  729. if test "$tor_cv_time_t_signed" != no; then
  730. AC_DEFINE([TIME_T_IS_SIGNED], 1,
  731. [Define to 1 iff time_t is signed])
  732. fi
  733. AC_CACHE_CHECK([whether size_t is signed], tor_cv_size_t_signed, [
  734. AC_RUN_IFELSE([AC_LANG_SOURCE([
  735. #ifdef HAVE_SYS_TYPES_H
  736. #include <sys/types.h>
  737. #endif
  738. int main(int c, char**v) { if (((size_t)-1)<0) return 1; else return 0; }])],
  739. tor_cv_size_t_signed=no, tor_cv_size_t_signed=yes, tor_cv_size_t_signed=cross)
  740. ])
  741. if test "$tor_cv_size_t_signed" = cross; then
  742. AC_MSG_NOTICE([Cross compiling: assuming that size_t is not signed.])
  743. fi
  744. if test "$tor_cv_size_t_signed" = yes; then
  745. AC_MSG_ERROR([You have a signed size_t; that's grossly nonconformant.])
  746. fi
  747. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  748. #ifdef HAVE_SYS_SOCKET_H
  749. #include <sys/socket.h>
  750. #endif
  751. ])
  752. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  753. AC_CHECK_SIZEOF(cell_t)
  754. # Now make sure that NULL can be represented as zero bytes.
  755. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  756. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  757. [[#include <stdlib.h>
  758. #include <string.h>
  759. #include <stdio.h>
  760. #ifdef HAVE_STDDEF_H
  761. #include <stddef.h>
  762. #endif
  763. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  764. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  765. [tor_cv_null_is_zero=yes],
  766. [tor_cv_null_is_zero=no],
  767. [tor_cv_null_is_zero=cross])])
  768. if test "$tor_cv_null_is_zero" = cross ; then
  769. # Cross-compiling; let's hope that the target isn't raving mad.
  770. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  771. fi
  772. if test "$tor_cv_null_is_zero" != no; then
  773. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  774. [Define to 1 iff memset(0) sets pointers to NULL])
  775. fi
  776. # And what happens when we malloc zero?
  777. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  778. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  779. [[#include <stdlib.h>
  780. #include <string.h>
  781. #include <stdio.h>
  782. #ifdef HAVE_STDDEF_H
  783. #include <stddef.h>
  784. #endif
  785. int main () { return malloc(0)?0:1; }]])],
  786. [tor_cv_malloc_zero_works=yes],
  787. [tor_cv_malloc_zero_works=no],
  788. [tor_cv_malloc_zero_works=cross])])
  789. if test "$tor_cv_malloc_zero_works" = cross; then
  790. # Cross-compiling; let's hope that the target isn't raving mad.
  791. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  792. fi
  793. if test "$tor_cv_malloc_zero_works" = yes; then
  794. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  795. [Define to 1 iff malloc(0) returns a pointer])
  796. fi
  797. # whether we seem to be in a 2s-complement world.
  798. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  799. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  800. [[int main () { int problem = ((-99) != (~99)+1);
  801. return problem ? 1 : 0; }]])],
  802. [tor_cv_twos_complement=yes],
  803. [tor_cv_twos_complement=no],
  804. [tor_cv_twos_complement=cross])])
  805. if test "$tor_cv_twos_complement" = cross ; then
  806. # Cross-compiling; let's hope that the target isn't raving mad.
  807. AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
  808. fi
  809. if test "$tor_cv_twos_complement" != no ; then
  810. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  811. [Define to 1 iff we represent negative integers with two's complement])
  812. fi
  813. # What does shifting a negative value do?
  814. AC_CACHE_CHECK([whether right-shift on negative values does sign-extension], tor_cv_sign_extend,
  815. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  816. [[int main () { int okay = (-60 >> 8) == -1; return okay ? 0 : 1; }]])],
  817. [tor_cv_sign_extend=yes],
  818. [tor_cv_sign_extend=no],
  819. [tor_cv_sign_extend=cross])])
  820. if test "$tor_cv_sign_extend" = 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 right-shifting negative integers causes sign-extension])
  823. fi
  824. if test "$tor_cv_sign_extend" != no ; then
  825. AC_DEFINE([RSHIFT_DOES_SIGN_EXTEND], 1,
  826. [Define to 1 iff right-shifting a negative value performs sign-extension])
  827. fi
  828. # Whether we should use the dmalloc memory allocation debugging library.
  829. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  830. AC_ARG_WITH(dmalloc,
  831. [ --with-dmalloc Use debug memory allocation library. ],
  832. [if [[ "$withval" = "yes" ]]; then
  833. dmalloc=1
  834. AC_MSG_RESULT(yes)
  835. else
  836. dmalloc=1
  837. AC_MSG_RESULT(no)
  838. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  839. )
  840. if [[ $dmalloc -eq 1 ]]; then
  841. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  842. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  843. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  844. AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
  845. AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
  846. fi
  847. AC_ARG_WITH(tcmalloc,
  848. [ --with-tcmalloc Use tcmalloc memory allocation library. ],
  849. [ tcmalloc=yes ], [ tcmalloc=no ])
  850. if test x$tcmalloc = xyes ; then
  851. LDFLAGS="-ltcmalloc $LDFLAGS"
  852. fi
  853. # By default, we're going to assume we don't have mlockall()
  854. # bionic and other platforms have various broken mlockall subsystems.
  855. # Some systems don't have a working mlockall, some aren't linkable,
  856. # and some have it but don't declare it.
  857. AC_CHECK_FUNCS(mlockall)
  858. AC_CHECK_DECLS([mlockall], , , [
  859. #ifdef HAVE_SYS_MMAN_H
  860. #include <sys/mman.h>
  861. #endif])
  862. # Allow user to specify an alternate syslog facility
  863. AC_ARG_WITH(syslog-facility,
  864. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  865. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  866. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  867. AC_SUBST(LOGFACILITY)
  868. # Check if we have getresuid and getresgid
  869. AC_CHECK_FUNCS(getresuid getresgid)
  870. # Check for gethostbyname_r in all its glorious incompatible versions.
  871. # (This logic is based on that in Python's configure.in)
  872. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  873. [Define this if you have any gethostbyname_r()])
  874. AC_CHECK_FUNC(gethostbyname_r, [
  875. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  876. OLD_CFLAGS=$CFLAGS
  877. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  878. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
  879. #include <netdb.h>
  880. ], [[
  881. char *cp1, *cp2;
  882. struct hostent *h1, *h2;
  883. int i1, i2;
  884. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  885. ]])],[
  886. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  887. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  888. [Define this if gethostbyname_r takes 6 arguments])
  889. AC_MSG_RESULT(6)
  890. ], [
  891. AC_TRY_COMPILE([
  892. #include <netdb.h>
  893. ], [
  894. char *cp1, *cp2;
  895. struct hostent *h1;
  896. int i1, i2;
  897. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  898. ], [
  899. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  900. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  901. [Define this if gethostbyname_r takes 5 arguments])
  902. AC_MSG_RESULT(5)
  903. ], [
  904. AC_TRY_COMPILE([
  905. #include <netdb.h>
  906. ], [
  907. char *cp1;
  908. struct hostent *h1;
  909. struct hostent_data hd;
  910. (void) gethostbyname_r(cp1,h1,&hd);
  911. ], [
  912. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  913. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  914. [Define this if gethostbyname_r takes 3 arguments])
  915. AC_MSG_RESULT(3)
  916. ], [
  917. AC_MSG_RESULT(0)
  918. ])
  919. ])
  920. ])
  921. CFLAGS=$OLD_CFLAGS
  922. ])
  923. AC_CACHE_CHECK([whether the C compiler supports __func__],
  924. tor_cv_have_func_macro,
  925. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  926. #include <stdio.h>
  927. int main(int c, char **v) { puts(__func__); }])],
  928. tor_cv_have_func_macro=yes,
  929. tor_cv_have_func_macro=no))
  930. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  931. tor_cv_have_FUNC_macro,
  932. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  933. #include <stdio.h>
  934. int main(int c, char **v) { puts(__FUNC__); }])],
  935. tor_cv_have_FUNC_macro=yes,
  936. tor_cv_have_FUNC_macro=no))
  937. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  938. tor_cv_have_FUNCTION_macro,
  939. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  940. #include <stdio.h>
  941. int main(int c, char **v) { puts(__FUNCTION__); }])],
  942. tor_cv_have_FUNCTION_macro=yes,
  943. tor_cv_have_FUNCTION_macro=no))
  944. if test "$tor_cv_have_func_macro" = 'yes'; then
  945. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  946. fi
  947. if test "$tor_cv_have_FUNC_macro" = 'yes'; then
  948. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  949. fi
  950. if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
  951. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  952. [Defined if the compiler supports __FUNCTION__])
  953. fi
  954. # $prefix stores the value of the --prefix command line option, or
  955. # NONE if the option wasn't set. In the case that it wasn't set, make
  956. # it be the default, so that we can use it to expand directories now.
  957. if test "x$prefix" = "xNONE"; then
  958. prefix=$ac_default_prefix
  959. fi
  960. # and similarly for $exec_prefix
  961. if test "x$exec_prefix" = "xNONE"; then
  962. exec_prefix=$prefix
  963. fi
  964. if test "x$BUILDDIR" = "x"; then
  965. BUILDDIR=`pwd`
  966. fi
  967. AC_SUBST(BUILDDIR)
  968. AH_TEMPLATE([BUILDDIR],[tor's build directory])
  969. AC_DEFINE_UNQUOTED(BUILDDIR,"$BUILDDIR")
  970. if test "x$CONFDIR" = "x"; then
  971. CONFDIR=`eval echo $sysconfdir/tor`
  972. fi
  973. AC_SUBST(CONFDIR)
  974. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  975. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  976. BINDIR=`eval echo $bindir`
  977. AC_SUBST(BINDIR)
  978. LOCALSTATEDIR=`eval echo $localstatedir`
  979. AC_SUBST(LOCALSTATEDIR)
  980. if test "$bwin32" = true; then
  981. # Test if the linker supports the --nxcompat and --dynamicbase options
  982. # for Windows
  983. save_LDFLAGS="$LDFLAGS"
  984. LDFLAGS="-Wl,--nxcompat -Wl,--dynamicbase"
  985. AC_MSG_CHECKING([whether the linker supports DllCharacteristics])
  986. AC_LINK_IFELSE([AC_LANG_PROGRAM([])],
  987. [AC_MSG_RESULT([yes])]
  988. [save_LDFLAGS="$save_LDFLAGS $LDFLAGS"],
  989. [AC_MSG_RESULT([no])]
  990. )
  991. LDFLAGS="$save_LDFLAGS"
  992. fi
  993. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  994. # than autoconf's macros like.
  995. if test "$GCC" = yes; then
  996. # Disable GCC's strict aliasing checks. They are an hours-to-debug
  997. # accident waiting to happen.
  998. CFLAGS="$CFLAGS -Wall -fno-strict-aliasing"
  999. else
  1000. # Autoconf sets -g -O2 by default. Override optimization level
  1001. # for non-gcc compilers
  1002. CFLAGS="$CFLAGS -O"
  1003. enable_gcc_warnings=no
  1004. enable_gcc_warnings_advisory=no
  1005. fi
  1006. # OS X Lion started deprecating the system openssl. Let's just disable
  1007. # all deprecation warnings on OS X.
  1008. case "$host_os" in
  1009. darwin*)
  1010. CFLAGS="$CFLAGS -Wno-deprecated-declarations"
  1011. ;;
  1012. esac
  1013. # Add some more warnings which we use in development but not in the
  1014. # released versions. (Some relevant gcc versions can't handle these.)
  1015. if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
  1016. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1017. #if !defined(__GNUC__) || (__GNUC__ < 4)
  1018. #error
  1019. #endif])], have_gcc4=yes, have_gcc4=no)
  1020. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1021. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  1022. #error
  1023. #endif])], have_gcc42=yes, have_gcc42=no)
  1024. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1025. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
  1026. #error
  1027. #endif])], have_gcc43=yes, have_gcc43=no)
  1028. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1029. #if !defined(__clang__) || (__clang_major__ > 2) || (__clang_major__ == 2 && __clang_minor__ > 9)
  1030. #error
  1031. #endif])], have_clang29orlower=yes, have_clang29orlower=no)
  1032. save_CFLAGS="$CFLAGS"
  1033. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  1034. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], have_shorten64_flag=yes,
  1035. have_shorten64_flag=no)
  1036. CFLAGS="$save_CFLAGS"
  1037. case $host in
  1038. *-*-openbsd*)
  1039. # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default.
  1040. # That's fine, except that the headers don't pass -Wredundant-decls.
  1041. # Therefore, let's disable -Wsystem-headers when we're building
  1042. # with maximal warnings on OpenBSD.
  1043. CFLAGS="$CFLAGS -Wno-system-headers" ;;
  1044. esac
  1045. CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith"
  1046. CFLAGS="$CFLAGS -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings"
  1047. CFLAGS="$CFLAGS -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2"
  1048. CFLAGS="$CFLAGS -Wwrite-strings -Wmissing-declarations -Wredundant-decls"
  1049. CFLAGS="$CFLAGS -Wnested-externs -Wbad-function-cast -Wswitch-enum"
  1050. if test x$enable_gcc_warnings = xyes; then
  1051. CFLAGS="$CFLAGS -Werror"
  1052. fi
  1053. # Disabled, so we can use mallinfo(): -Waggregate-return
  1054. if test x$have_gcc4 = xyes ; then
  1055. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  1056. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  1057. fi
  1058. if test x$have_gcc42 = xyes ; then
  1059. # These warnings break gcc 4.0.2 and work on gcc 4.2
  1060. # XXXX020 See if any of these work with earlier versions.
  1061. CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wstrict-overflow=1"
  1062. # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
  1063. fi
  1064. if test x$have_gcc42 = xyes && test x$have_clang29orlower = xno; then
  1065. # These warnings break gcc 4.0.2 and clang, but work on gcc 4.2
  1066. # We only disable these for clang 2.9 and lower, in case they are
  1067. # supported in later versions.
  1068. CFLAGS="$CFLAGS -Wnormalized=id -Woverride-init"
  1069. fi
  1070. if test x$have_gcc43 = xyes ; then
  1071. # These warnings break gcc 4.2 and work on gcc 4.3
  1072. # XXXX020 See if any of these work with earlier versions.
  1073. CFLAGS="$CFLAGS -Wextra -Warray-bounds"
  1074. fi
  1075. if test x$have_shorten64_flag = xyes ; then
  1076. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  1077. fi
  1078. ##This will break the world on some 64-bit architectures
  1079. # CFLAGS="$CFLAGS -Winline"
  1080. fi
  1081. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
  1082. AC_CONFIG_FILES([
  1083. Doxyfile
  1084. Makefile
  1085. contrib/Makefile
  1086. contrib/suse/Makefile
  1087. contrib/suse/tor.sh
  1088. contrib/tor.logrotate
  1089. contrib/tor.sh
  1090. contrib/torctl
  1091. contrib/torify
  1092. doc/Makefile
  1093. src/Makefile
  1094. src/common/Makefile
  1095. src/config/Makefile
  1096. src/config/torrc.sample
  1097. src/or/Makefile
  1098. src/test/Makefile
  1099. src/tools/Makefile
  1100. src/tools/tor-fw-helper/Makefile
  1101. src/win32/Makefile
  1102. tor.spec
  1103. ])
  1104. AC_OUTPUT
  1105. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  1106. ./contrib/updateVersions.pl
  1107. fi