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, 0.2.3.11-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 network])
  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 "$enable_threads" = "yes"; then
  248. AC_SEARCH_LIBS(pthread_create, [pthread])
  249. AC_SEARCH_LIBS(pthread_detach, [pthread])
  250. fi
  251. dnl -------------------------------------------------------------------
  252. dnl Check for functions before libevent, since libevent-1.2 apparently
  253. dnl exports strlcpy without defining it in a header.
  254. AC_CHECK_FUNCS(
  255. accept4 \
  256. clock_gettime \
  257. flock \
  258. ftime \
  259. getaddrinfo \
  260. getifaddrs \
  261. getrlimit \
  262. gettimeofday \
  263. gmtime_r \
  264. inet_aton \
  265. ioctl \
  266. localtime_r \
  267. lround \
  268. memmem \
  269. prctl \
  270. rint \
  271. socketpair \
  272. strlcat \
  273. strlcpy \
  274. strptime \
  275. strtok_r \
  276. strtoull \
  277. sysconf \
  278. uname \
  279. vasprintf \
  280. )
  281. using_custom_malloc=no
  282. if test x$enable_openbsd_malloc = xyes ; then
  283. AC_DEFINE(HAVE_MALLOC_GOOD_SIZE, 1, [Defined if we have the malloc_good_size function])
  284. using_custom_malloc=yes
  285. fi
  286. if test x$tcmalloc = xyes ; then
  287. using_custom_malloc=yes
  288. fi
  289. if test $using_custom_malloc = no ; then
  290. AC_CHECK_FUNCS(mallinfo malloc_good_size malloc_usable_size)
  291. fi
  292. if test "$enable_threads" = "yes"; then
  293. AC_CHECK_HEADERS(pthread.h)
  294. AC_CHECK_FUNCS(pthread_create)
  295. fi
  296. dnl ------------------------------------------------------
  297. dnl Where do you live, libevent? And how do we call you?
  298. if test "$bwin32" = true; then
  299. TOR_LIB_WS32=-lws2_32
  300. TOR_LIB_IPHLPAPI=-liphlpapi
  301. # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  302. # think it's actually necessary.
  303. TOR_LIB_GDI=-lgdi32
  304. else
  305. TOR_LIB_WS32=
  306. TOR_LIB_GDI=
  307. fi
  308. AC_SUBST(TOR_LIB_WS32)
  309. AC_SUBST(TOR_LIB_GDI)
  310. AC_SUBST(TOR_LIB_IPHLPAPI)
  311. dnl We need to do this before we try our disgusting hack below.
  312. AC_CHECK_HEADERS([sys/types.h])
  313. dnl This is a disgusting hack so we safely include older libevent headers.
  314. AC_CHECK_TYPE(u_int64_t, unsigned long long)
  315. AC_CHECK_TYPE(u_int32_t, unsigned long)
  316. AC_CHECK_TYPE(u_int16_t, unsigned short)
  317. AC_CHECK_TYPE(u_int8_t, unsigned char)
  318. tor_libevent_pkg_redhat="libevent"
  319. tor_libevent_pkg_debian="libevent-dev"
  320. tor_libevent_devpkg_redhat="libevent-devel"
  321. tor_libevent_devpkg_debian="libevent-dev"
  322. dnl On Gnu/Linux or any place we require it, we'll add librt to the Libevent
  323. dnl linking for static builds.
  324. STATIC_LIBEVENT_FLAGS=""
  325. if test "$enable_static_libevent" = "yes"; then
  326. if test "$have_rt" = yes; then
  327. STATIC_LIBEVENT_FLAGS=" -lrt "
  328. fi
  329. fi
  330. TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32], [
  331. #ifdef WIN32
  332. #include <winsock2.h>
  333. #endif
  334. #include <stdlib.h>
  335. #include <sys/time.h>
  336. #include <sys/types.h>
  337. #include <event.h>], [
  338. #ifdef WIN32
  339. #include <winsock2.h>
  340. #endif
  341. void exit(int); void *event_init(void);],
  342. [
  343. #ifdef WIN32
  344. {WSADATA d; WSAStartup(0x101,&d); }
  345. #endif
  346. event_init(); exit(0);
  347. ], [--with-libevent-dir], [/opt/libevent])
  348. dnl Now check for particular libevent functions.
  349. save_LIBS="$LIBS"
  350. save_LDFLAGS="$LDFLAGS"
  351. save_CPPFLAGS="$CPPFLAGS"
  352. LIBS="-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32 $LIBS"
  353. LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
  354. CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
  355. AC_CHECK_FUNCS(event_get_version event_get_version_number event_get_method event_set_log_callback evdns_set_outgoing_bind_address event_base_loopexit)
  356. AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
  357. [#include <event.h>
  358. ])
  359. AC_CHECK_HEADERS(event2/event.h event2/dns.h event2/bufferevent_ssl.h)
  360. LIBS="$save_LIBS"
  361. LDFLAGS="$save_LDFLAGS"
  362. CPPFLAGS="$save_CPPFLAGS"
  363. AM_CONDITIONAL(USE_EXTERNAL_EVDNS, test x$ac_cv_header_event2_dns_h = xyes)
  364. if test "$enable_static_libevent" = "yes"; then
  365. if test "$tor_cv_library_libevent_dir" = "(system)"; then
  366. AC_MSG_ERROR("You must specify an explicit --with-libevent-dir=x option when using --enable-static-libevent")
  367. else
  368. TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent.a $STATIC_LIBEVENT_FLAGS"
  369. fi
  370. else
  371. TOR_LIBEVENT_LIBS="-levent"
  372. fi
  373. dnl This isn't the best test for Libevent 2.0.3-alpha. Once it's released,
  374. dnl we can do much better.
  375. if test "$enable_bufferevents" = "yes" ; then
  376. if test "$ac_cv_header_event2_bufferevent_ssl_h" != "yes" ; then
  377. AC_MSG_ERROR([You've asked for bufferevent support, but you're using a version of Libevent without SSL support. This won't work. We need Libevent 2.0.8-rc or later, and you don't seem to even have Libevent 2.0.3-alpha.])
  378. else
  379. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent"
  380. # Check for the right version. First see if version detection works.
  381. AC_MSG_CHECKING([whether we can detect the Libevent version])
  382. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  383. #include <event2/event.h>
  384. #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 10
  385. #error
  386. int x = y(zz);
  387. #else
  388. int x = 1;
  389. #endif
  390. ])], [event_version_number_works=yes; AC_MSG_RESULT([yes]) ],
  391. [event_version_number_works=no; AC_MSG_RESULT([no])])
  392. if test "$event_version_number_works" != 'yes'; then
  393. AC_MSG_WARN([Version detection on Libevent seems broken. Your Libevent installation is probably screwed up or very old.])
  394. else
  395. AC_MSG_CHECKING([whether Libevent is new enough for bufferevents])
  396. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  397. #include <event2/event.h>
  398. #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 0x02000d00
  399. #error
  400. int x = y(zz);
  401. #else
  402. int x = 1;
  403. #endif
  404. ])], [ AC_MSG_RESULT([yes]) ],
  405. [ AC_MSG_RESULT([no])
  406. AC_MSG_ERROR([Libevent does not seem new enough to support bufferevents. We require 2.0.13-stable or later]) ] )
  407. fi
  408. fi
  409. fi
  410. LIBS="$save_LIBS"
  411. LDFLAGS="$save_LDFLAGS"
  412. CPPFLAGS="$save_CPPFLAGS"
  413. AM_CONDITIONAL(USE_BUFFEREVENTS, test "$enable_bufferevents" = "yes")
  414. if test "$enable_bufferevents" = "yes"; then
  415. AC_DEFINE(USE_BUFFEREVENTS, 1, [Defined if we're going to use Libevent's buffered IO API])
  416. if test "$enable_static_libevent" = "yes"; then
  417. TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent_openssl.a $TOR_LIBEVENT_LIBS"
  418. else
  419. TOR_LIBEVENT_LIBS="-levent_openssl $TOR_LIBEVENT_LIBS"
  420. fi
  421. fi
  422. AC_SUBST(TOR_LIBEVENT_LIBS)
  423. dnl ------------------------------------------------------
  424. dnl Where do you live, libm?
  425. dnl On some platforms (Haiku/BeOS) the math library is
  426. dnl part of libroot. In which case don't link against lm
  427. TOR_LIB_MATH=""
  428. save_LIBS="$LIBS"
  429. AC_SEARCH_LIBS(pow, [m], , AC_MSG_ERROR([Could not find pow in libm or libc.]))
  430. if test "$ac_cv_search_pow" != "none required"; then
  431. TOR_LIB_MATH="$ac_cv_search_pow"
  432. fi
  433. LIBS="$save_LIBS"
  434. AC_SUBST(TOR_LIB_MATH)
  435. dnl ------------------------------------------------------
  436. dnl Where do you live, openssl? And how do we call you?
  437. tor_openssl_pkg_redhat="openssl"
  438. tor_openssl_pkg_debian="libssl"
  439. tor_openssl_devpkg_redhat="openssl-devel"
  440. tor_openssl_devpkg_debian="libssl-dev"
  441. ALT_openssl_WITHVAL=""
  442. AC_ARG_WITH(ssl-dir,
  443. [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
  444. [
  445. if test "x$withval" != xno && test "x$withval" != "x" ; then
  446. ALT_openssl_WITHVAL="$withval"
  447. fi
  448. ])
  449. TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
  450. [#include <openssl/rand.h>],
  451. [void RAND_add(const void *buf, int num, double entropy);],
  452. [RAND_add((void*)0,0,0); exit(0);], [],
  453. [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
  454. dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
  455. echo "tor_cv_library_openssl_dir is $tor_cv_library_openssl_dir"
  456. if test "$enable_static_openssl" = "yes"; then
  457. if test "$tor_cv_library_openssl_dir" = "(system)"; then
  458. AC_MSG_ERROR("You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl")
  459. else
  460. TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a"
  461. fi
  462. else
  463. TOR_OPENSSL_LIBS="-lssl -lcrypto"
  464. fi
  465. AC_SUBST(TOR_OPENSSL_LIBS)
  466. dnl ------------------------------------------------------
  467. dnl Where do you live, zlib? And how do we call you?
  468. tor_zlib_pkg_redhat="zlib"
  469. tor_zlib_pkg_debian="zlib1g"
  470. tor_zlib_devpkg_redhat="zlib-devel"
  471. tor_zlib_devpkg_debian="zlib1g-dev"
  472. TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
  473. [#include <zlib.h>],
  474. [const char * zlibVersion(void);],
  475. [zlibVersion(); exit(0);], [--with-zlib-dir],
  476. [/opt/zlib])
  477. if test "$enable_static_zlib" = "yes"; then
  478. if test "$tor_cv_library_zlib_dir" = "(system)"; then
  479. AC_MSG_ERROR("You must specify an explicit --with-zlib-dir=x option when
  480. using --enable-static-zlib")
  481. else
  482. TOR_ZLIB_LIBS="$TOR_LIBDIR_zlib/libz.a"
  483. echo "$TOR_LIBDIR_zlib/libz.a"
  484. fi
  485. else
  486. TOR_ZLIB_LIBS="-lz"
  487. fi
  488. AC_SUBST(TOR_ZLIB_LIBS)
  489. dnl Make sure to enable support for large off_t if available.
  490. dnl ------------------------------------------------------
  491. dnl Where do you live, libnatpmp? And how do we call you?
  492. dnl There are no packages for Debian or Redhat as of this patch
  493. if test "$natpmp" = "true"; then
  494. AC_DEFINE(NAT_PMP, 1, [Define to 1 if we are building with nat-pmp.])
  495. TOR_SEARCH_LIBRARY(libnatpmp, $trylibnatpmpdir, [-lnatpmp $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
  496. [#include <natpmp.h>],
  497. [#ifdef MS_WINDOWS
  498. #define STATICLIB
  499. #endif
  500. #include <natpmp.h>],
  501. [ int r;
  502. natpmp_t natpmp;
  503. natpmpresp_t response;
  504. r = initnatpmp(&natpmp, 0, 0);],
  505. [printf("initnatpmp() returned %d (%s)\n", r, r?"FAILED":"SUCCESS");
  506. exit(0);],
  507. [--with-libnatpmp-dir],
  508. [/usr/lib/])
  509. fi
  510. dnl ------------------------------------------------------
  511. dnl Where do you live, libminiupnpc? And how do we call you?
  512. dnl There are no packages for Debian or Redhat as of this patch
  513. if test "$upnp" = "true"; then
  514. AC_DEFINE(MINIUPNPC, 1, [Define to 1 if we are building with UPnP.])
  515. TOR_SEARCH_LIBRARY(libminiupnpc, $trylibminiupnpcdir, [-lminiupnpc $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
  516. [#include <miniupnpc/miniwget.h>
  517. #include <miniupnpc/miniupnpc.h>
  518. #include <miniupnpc/upnpcommands.h>],
  519. [void upnpDiscover(int delay, const char * multicastif,
  520. const char * minissdpdsock, int sameport);],
  521. [upnpDiscover(1, 0, 0, 0); exit(0);],
  522. [--with-libminiupnpc-dir],
  523. [/usr/lib/])
  524. fi
  525. AC_SYS_LARGEFILE
  526. AC_CHECK_HEADERS(
  527. assert.h \
  528. errno.h \
  529. fcntl.h \
  530. signal.h \
  531. string.h \
  532. sys/fcntl.h \
  533. sys/stat.h \
  534. sys/time.h \
  535. sys/types.h \
  536. time.h \
  537. unistd.h
  538. , , 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.))
  539. dnl These headers are not essential
  540. AC_CHECK_HEADERS(
  541. arpa/inet.h \
  542. grp.h \
  543. ifaddrs.h \
  544. inttypes.h \
  545. limits.h \
  546. linux/types.h \
  547. machine/limits.h \
  548. malloc.h \
  549. malloc/malloc.h \
  550. malloc_np.h \
  551. netdb.h \
  552. netinet/in.h \
  553. netinet/in6.h \
  554. pwd.h \
  555. stdint.h \
  556. sys/file.h \
  557. sys/ioctl.h \
  558. sys/limits.h \
  559. sys/mman.h \
  560. sys/param.h \
  561. sys/prctl.h \
  562. sys/resource.h \
  563. sys/socket.h \
  564. sys/syslimits.h \
  565. sys/time.h \
  566. sys/types.h \
  567. sys/un.h \
  568. sys/utime.h \
  569. sys/wait.h \
  570. syslog.h \
  571. utime.h
  572. )
  573. TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
  574. [#ifdef HAVE_MALLOC_H
  575. #include <malloc.h>
  576. #endif
  577. #ifdef HAVE_MALLOC_MALLOC_H
  578. #include <malloc/malloc.h>
  579. #endif])
  580. AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
  581. [#ifdef HAVE_SYS_TYPES_H
  582. #include <sys/types.h>
  583. #endif
  584. #ifdef HAVE_SYS_SOCKET_H
  585. #include <sys/socket.h>
  586. #endif])
  587. AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
  588. [#ifdef HAVE_SYS_TYPES_H
  589. #include <sys/types.h>
  590. #endif
  591. #ifdef HAVE_SYS_SOCKET_H
  592. #include <sys/socket.h>
  593. #endif
  594. #ifdef HAVE_NET_IF_H
  595. #include <net/if.h>
  596. #endif])
  597. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  598. linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
  599. [#ifdef HAVE_SYS_TYPES_H
  600. #include <sys/types.h>
  601. #endif
  602. #ifdef HAVE_SYS_SOCKET_H
  603. #include <sys/socket.h>
  604. #endif
  605. #ifdef HAVE_LIMITS_H
  606. #include <limits.h>
  607. #endif
  608. #ifdef HAVE_LINUX_TYPES_H
  609. #include <linux/types.h>
  610. #endif
  611. #ifdef HAVE_NETINET_IN6_H
  612. #include <netinet/in6.h>
  613. #endif
  614. #ifdef HAVE_NETINET_IN_H
  615. #include <netinet/in.h>
  616. #endif])
  617. if test x$transparent = xtrue ; then
  618. transparent_ok=0
  619. if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
  620. transparent_ok=1
  621. fi
  622. if test x$linux_netfilter_ipv4 = x1 ; then
  623. transparent_ok=1
  624. fi
  625. if test x$transparent_ok = x1 ; then
  626. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  627. case $host in
  628. *-*-openbsd*)
  629. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  630. esac
  631. else
  632. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  633. fi
  634. fi
  635. AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
  636. [#ifdef HAVE_SYS_TYPES_H
  637. #include <sys/types.h>
  638. #endif
  639. #ifdef HAVE_SYS_TIME_H
  640. #include <sys/time.h>
  641. #endif])
  642. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  643. dnl Watch out.
  644. AC_CHECK_SIZEOF(int8_t)
  645. AC_CHECK_SIZEOF(int16_t)
  646. AC_CHECK_SIZEOF(int32_t)
  647. AC_CHECK_SIZEOF(int64_t)
  648. AC_CHECK_SIZEOF(uint8_t)
  649. AC_CHECK_SIZEOF(uint16_t)
  650. AC_CHECK_SIZEOF(uint32_t)
  651. AC_CHECK_SIZEOF(uint64_t)
  652. AC_CHECK_SIZEOF(intptr_t)
  653. AC_CHECK_SIZEOF(uintptr_t)
  654. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  655. AC_CHECK_SIZEOF(char)
  656. AC_CHECK_SIZEOF(short)
  657. AC_CHECK_SIZEOF(int)
  658. AC_CHECK_SIZEOF(long)
  659. AC_CHECK_SIZEOF(long long)
  660. AC_CHECK_SIZEOF(__int64)
  661. AC_CHECK_SIZEOF(void *)
  662. AC_CHECK_SIZEOF(time_t)
  663. AC_CHECK_SIZEOF(size_t)
  664. AC_CHECK_TYPES([uint, u_char, ssize_t])
  665. dnl used to include sockaddr_storage, but everybody has that.
  666. AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
  667. [#ifdef HAVE_SYS_TYPES_H
  668. #include <sys/types.h>
  669. #endif
  670. #ifdef HAVE_NETINET_IN_H
  671. #include <netinet/in.h>
  672. #endif
  673. #ifdef HAVE_NETINET_IN6_H
  674. #include <netinet/in6.h>
  675. #endif
  676. #ifdef HAVE_SYS_SOCKET_H
  677. #include <sys/socket.h>
  678. #endif
  679. #ifdef MS_WINDOWS
  680. #define WIN32_WINNT 0x400
  681. #define _WIN32_WINNT 0x400
  682. #define WIN32_LEAN_AND_MEAN
  683. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  684. #include <winsock.h>
  685. #else
  686. #include <winsock2.h>
  687. #include <ws2tcpip.h>
  688. #endif
  689. #endif
  690. ])
  691. AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
  692. [#ifdef HAVE_SYS_TYPES_H
  693. #include <sys/types.h>
  694. #endif
  695. #ifdef HAVE_NETINET_IN_H
  696. #include <netinet/in.h>
  697. #endif
  698. #ifdef HAVE_NETINET_IN6_H
  699. #include <netinet/in6.h>
  700. #endif
  701. #ifdef HAVE_SYS_SOCKET_H
  702. #include <sys/socket.h>
  703. #endif
  704. #ifdef MS_WINDOWS
  705. #define WIN32_WINNT 0x400
  706. #define _WIN32_WINNT 0x400
  707. #define WIN32_LEAN_AND_MEAN
  708. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  709. #include <winsock.h>
  710. #else
  711. #include <winsock2.h>
  712. #include <ws2tcpip.h>
  713. #endif
  714. #endif
  715. ])
  716. AC_CHECK_TYPES([rlim_t], , ,
  717. [#ifdef HAVE_SYS_TYPES_H
  718. #include <sys/types.h>
  719. #endif
  720. #ifdef HAVE_SYS_TIME_H
  721. #include <sys/time.h>
  722. #endif
  723. #ifdef HAVE_SYS_RESOURCE_H
  724. #include <sys/resource.h>
  725. #endif
  726. ])
  727. AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
  728. AC_RUN_IFELSE([AC_LANG_SOURCE([
  729. #ifdef HAVE_SYS_TYPES_H
  730. #include <sys/types.h>
  731. #endif
  732. #ifdef HAVE_SYS_TIME_H
  733. #include <sys/time.h>
  734. #endif
  735. #ifdef HAVE_TIME_H
  736. #include <time.h>
  737. #endif
  738. int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }])],
  739. tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes, tor_cv_time_t_signed=cross)
  740. ])
  741. if test "$tor_cv_time_t_signed" = cross; then
  742. AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  743. fi
  744. if test "$tor_cv_time_t_signed" != no; then
  745. AC_DEFINE([TIME_T_IS_SIGNED], 1,
  746. [Define to 1 iff time_t is signed])
  747. fi
  748. AC_CACHE_CHECK([whether size_t is signed], tor_cv_size_t_signed, [
  749. AC_RUN_IFELSE([AC_LANG_SOURCE([
  750. #ifdef HAVE_SYS_TYPES_H
  751. #include <sys/types.h>
  752. #endif
  753. int main(int c, char**v) { if (((size_t)-1)<0) return 1; else return 0; }])],
  754. tor_cv_size_t_signed=no, tor_cv_size_t_signed=yes, tor_cv_size_t_signed=cross)
  755. ])
  756. if test "$tor_cv_size_t_signed" = cross; then
  757. AC_MSG_NOTICE([Cross compiling: assuming that size_t is not signed.])
  758. fi
  759. if test "$tor_cv_size_t_signed" = yes; then
  760. AC_MSG_ERROR([You have a signed size_t; that's grossly nonconformant.])
  761. fi
  762. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  763. #ifdef HAVE_SYS_SOCKET_H
  764. #include <sys/socket.h>
  765. #endif
  766. ])
  767. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  768. AC_CHECK_SIZEOF(cell_t)
  769. # Now make sure that NULL can be represented as zero bytes.
  770. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  771. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  772. [[#include <stdlib.h>
  773. #include <string.h>
  774. #include <stdio.h>
  775. #ifdef HAVE_STDDEF_H
  776. #include <stddef.h>
  777. #endif
  778. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  779. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  780. [tor_cv_null_is_zero=yes],
  781. [tor_cv_null_is_zero=no],
  782. [tor_cv_null_is_zero=cross])])
  783. if test "$tor_cv_null_is_zero" = cross ; then
  784. # Cross-compiling; let's hope that the target isn't raving mad.
  785. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  786. fi
  787. if test "$tor_cv_null_is_zero" != no; then
  788. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  789. [Define to 1 iff memset(0) sets pointers to NULL])
  790. fi
  791. # And what happens when we malloc zero?
  792. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  793. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  794. [[#include <stdlib.h>
  795. #include <string.h>
  796. #include <stdio.h>
  797. #ifdef HAVE_STDDEF_H
  798. #include <stddef.h>
  799. #endif
  800. int main () { return malloc(0)?0:1; }]])],
  801. [tor_cv_malloc_zero_works=yes],
  802. [tor_cv_malloc_zero_works=no],
  803. [tor_cv_malloc_zero_works=cross])])
  804. if test "$tor_cv_malloc_zero_works" = cross; then
  805. # Cross-compiling; let's hope that the target isn't raving mad.
  806. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  807. fi
  808. if test "$tor_cv_malloc_zero_works" = yes; then
  809. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  810. [Define to 1 iff malloc(0) returns a pointer])
  811. fi
  812. # whether we seem to be in a 2s-complement world.
  813. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  814. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  815. [[int main () { int problem = ((-99) != (~99)+1);
  816. return problem ? 1 : 0; }]])],
  817. [tor_cv_twos_complement=yes],
  818. [tor_cv_twos_complement=no],
  819. [tor_cv_twos_complement=cross])])
  820. if test "$tor_cv_twos_complement" = 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 negative integers are represented with two's complement.])
  823. fi
  824. if test "$tor_cv_twos_complement" != no ; then
  825. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  826. [Define to 1 iff we represent negative integers with two's complement])
  827. fi
  828. # What does shifting a negative value do?
  829. AC_CACHE_CHECK([whether right-shift on negative values does sign-extension], tor_cv_sign_extend,
  830. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  831. [[int main () { int okay = (-60 >> 8) == -1; return okay ? 0 : 1; }]])],
  832. [tor_cv_sign_extend=yes],
  833. [tor_cv_sign_extend=no],
  834. [tor_cv_sign_extend=cross])])
  835. if test "$tor_cv_sign_extend" = cross ; then
  836. # Cross-compiling; let's hope that the target isn't raving mad.
  837. AC_MSG_NOTICE([Cross-compiling: we'll assume that right-shifting negative integers causes sign-extension])
  838. fi
  839. if test "$tor_cv_sign_extend" != no ; then
  840. AC_DEFINE([RSHIFT_DOES_SIGN_EXTEND], 1,
  841. [Define to 1 iff right-shifting a negative value performs sign-extension])
  842. fi
  843. # Whether we should use the dmalloc memory allocation debugging library.
  844. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  845. AC_ARG_WITH(dmalloc,
  846. [ --with-dmalloc Use debug memory allocation library. ],
  847. [if [[ "$withval" = "yes" ]]; then
  848. dmalloc=1
  849. AC_MSG_RESULT(yes)
  850. else
  851. dmalloc=1
  852. AC_MSG_RESULT(no)
  853. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  854. )
  855. if [[ $dmalloc -eq 1 ]]; then
  856. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  857. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  858. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  859. AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
  860. AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
  861. fi
  862. AC_ARG_WITH(tcmalloc,
  863. [ --with-tcmalloc Use tcmalloc memory allocation library. ],
  864. [ tcmalloc=yes ], [ tcmalloc=no ])
  865. if test x$tcmalloc = xyes ; then
  866. LDFLAGS="-ltcmalloc $LDFLAGS"
  867. fi
  868. # By default, we're going to assume we don't have mlockall()
  869. # bionic and other platforms have various broken mlockall subsystems.
  870. # Some systems don't have a working mlockall, some aren't linkable,
  871. # and some have it but don't declare it.
  872. AC_CHECK_FUNCS(mlockall)
  873. AC_CHECK_DECLS([mlockall], , , [
  874. #ifdef HAVE_SYS_MMAN_H
  875. #include <sys/mman.h>
  876. #endif])
  877. # Allow user to specify an alternate syslog facility
  878. AC_ARG_WITH(syslog-facility,
  879. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  880. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  881. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  882. AC_SUBST(LOGFACILITY)
  883. # Check if we have getresuid and getresgid
  884. AC_CHECK_FUNCS(getresuid getresgid)
  885. # Check for gethostbyname_r in all its glorious incompatible versions.
  886. # (This logic is based on that in Python's configure.in)
  887. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  888. [Define this if you have any gethostbyname_r()])
  889. AC_CHECK_FUNC(gethostbyname_r, [
  890. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  891. OLD_CFLAGS=$CFLAGS
  892. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  893. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
  894. #include <netdb.h>
  895. ], [[
  896. char *cp1, *cp2;
  897. struct hostent *h1, *h2;
  898. int i1, i2;
  899. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  900. ]])],[
  901. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  902. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  903. [Define this if gethostbyname_r takes 6 arguments])
  904. AC_MSG_RESULT(6)
  905. ], [
  906. AC_TRY_COMPILE([
  907. #include <netdb.h>
  908. ], [
  909. char *cp1, *cp2;
  910. struct hostent *h1;
  911. int i1, i2;
  912. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  913. ], [
  914. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  915. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  916. [Define this if gethostbyname_r takes 5 arguments])
  917. AC_MSG_RESULT(5)
  918. ], [
  919. AC_TRY_COMPILE([
  920. #include <netdb.h>
  921. ], [
  922. char *cp1;
  923. struct hostent *h1;
  924. struct hostent_data hd;
  925. (void) gethostbyname_r(cp1,h1,&hd);
  926. ], [
  927. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  928. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  929. [Define this if gethostbyname_r takes 3 arguments])
  930. AC_MSG_RESULT(3)
  931. ], [
  932. AC_MSG_RESULT(0)
  933. ])
  934. ])
  935. ])
  936. CFLAGS=$OLD_CFLAGS
  937. ])
  938. AC_CACHE_CHECK([whether the C compiler supports __func__],
  939. tor_cv_have_func_macro,
  940. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  941. #include <stdio.h>
  942. int main(int c, char **v) { puts(__func__); }])],
  943. tor_cv_have_func_macro=yes,
  944. tor_cv_have_func_macro=no))
  945. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  946. tor_cv_have_FUNC_macro,
  947. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  948. #include <stdio.h>
  949. int main(int c, char **v) { puts(__FUNC__); }])],
  950. tor_cv_have_FUNC_macro=yes,
  951. tor_cv_have_FUNC_macro=no))
  952. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  953. tor_cv_have_FUNCTION_macro,
  954. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  955. #include <stdio.h>
  956. int main(int c, char **v) { puts(__FUNCTION__); }])],
  957. tor_cv_have_FUNCTION_macro=yes,
  958. tor_cv_have_FUNCTION_macro=no))
  959. if test "$tor_cv_have_func_macro" = 'yes'; then
  960. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  961. fi
  962. if test "$tor_cv_have_FUNC_macro" = 'yes'; then
  963. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  964. fi
  965. if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
  966. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  967. [Defined if the compiler supports __FUNCTION__])
  968. fi
  969. # $prefix stores the value of the --prefix command line option, or
  970. # NONE if the option wasn't set. In the case that it wasn't set, make
  971. # it be the default, so that we can use it to expand directories now.
  972. if test "x$prefix" = "xNONE"; then
  973. prefix=$ac_default_prefix
  974. fi
  975. # and similarly for $exec_prefix
  976. if test "x$exec_prefix" = "xNONE"; then
  977. exec_prefix=$prefix
  978. fi
  979. if test "x$BUILDDIR" = "x"; then
  980. BUILDDIR=`pwd`
  981. fi
  982. AC_SUBST(BUILDDIR)
  983. AH_TEMPLATE([BUILDDIR],[tor's build directory])
  984. AC_DEFINE_UNQUOTED(BUILDDIR,"$BUILDDIR")
  985. if test "x$CONFDIR" = "x"; then
  986. CONFDIR=`eval echo $sysconfdir/tor`
  987. fi
  988. AC_SUBST(CONFDIR)
  989. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  990. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  991. BINDIR=`eval echo $bindir`
  992. AC_SUBST(BINDIR)
  993. LOCALSTATEDIR=`eval echo $localstatedir`
  994. AC_SUBST(LOCALSTATEDIR)
  995. if test "$bwin32" = true; then
  996. # Test if the linker supports the --nxcompat and --dynamicbase options
  997. # for Windows
  998. save_LDFLAGS="$LDFLAGS"
  999. LDFLAGS="-Wl,--nxcompat -Wl,--dynamicbase"
  1000. AC_MSG_CHECKING([whether the linker supports DllCharacteristics])
  1001. AC_LINK_IFELSE([AC_LANG_PROGRAM([])],
  1002. [AC_MSG_RESULT([yes])]
  1003. [save_LDFLAGS="$save_LDFLAGS $LDFLAGS"],
  1004. [AC_MSG_RESULT([no])]
  1005. )
  1006. LDFLAGS="$save_LDFLAGS"
  1007. fi
  1008. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  1009. # than autoconf's macros like.
  1010. if test "$GCC" = yes; then
  1011. # Disable GCC's strict aliasing checks. They are an hours-to-debug
  1012. # accident waiting to happen.
  1013. CFLAGS="$CFLAGS -Wall -fno-strict-aliasing"
  1014. else
  1015. # Autoconf sets -g -O2 by default. Override optimization level
  1016. # for non-gcc compilers
  1017. CFLAGS="$CFLAGS -O"
  1018. enable_gcc_warnings=no
  1019. enable_gcc_warnings_advisory=no
  1020. fi
  1021. # OS X Lion started deprecating the system openssl. Let's just disable
  1022. # all deprecation warnings on OS X. Also, to potentially make the binary
  1023. # a little smaller, let's enable dead_strip.
  1024. case "$host_os" in
  1025. darwin*)
  1026. CFLAGS="$CFLAGS -Wno-deprecated-declarations"
  1027. LDFLAGS="$LDFLAGS -dead_strip" ;;
  1028. esac
  1029. # Add some more warnings which we use in development but not in the
  1030. # released versions. (Some relevant gcc versions can't handle these.)
  1031. if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
  1032. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1033. #if !defined(__GNUC__) || (__GNUC__ < 4)
  1034. #error
  1035. #endif])], have_gcc4=yes, have_gcc4=no)
  1036. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1037. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  1038. #error
  1039. #endif])], have_gcc42=yes, have_gcc42=no)
  1040. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1041. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
  1042. #error
  1043. #endif])], have_gcc43=yes, have_gcc43=no)
  1044. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1045. #if !defined(__clang__)
  1046. #error
  1047. #endif])], have_clang=yes, have_clang=no)
  1048. save_CFLAGS="$CFLAGS"
  1049. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  1050. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], have_shorten64_flag=yes,
  1051. have_shorten64_flag=no)
  1052. CFLAGS="$save_CFLAGS"
  1053. case $host in
  1054. *-*-openbsd*)
  1055. # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default.
  1056. # That's fine, except that the headers don't pass -Wredundant-decls.
  1057. # Therefore, let's disable -Wsystem-headers when we're building
  1058. # with maximal warnings on OpenBSD.
  1059. CFLAGS="$CFLAGS -Wno-system-headers" ;;
  1060. esac
  1061. CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith"
  1062. CFLAGS="$CFLAGS -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings"
  1063. CFLAGS="$CFLAGS -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2"
  1064. CFLAGS="$CFLAGS -Wwrite-strings -Wmissing-declarations -Wredundant-decls"
  1065. CFLAGS="$CFLAGS -Wnested-externs -Wbad-function-cast -Wswitch-enum"
  1066. if test x$enable_gcc_warnings = xyes; then
  1067. CFLAGS="$CFLAGS -Werror"
  1068. fi
  1069. # Disabled, so we can use mallinfo(): -Waggregate-return
  1070. if test x$have_gcc4 = xyes ; then
  1071. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  1072. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  1073. fi
  1074. if test x$have_gcc42 = xyes ; then
  1075. # These warnings break gcc 4.0.2 and work on gcc 4.2
  1076. # XXXX020 See if any of these work with earlier versions.
  1077. CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wstrict-overflow=1"
  1078. # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
  1079. fi
  1080. if test x$have_gcc42 = xyes && test x$have_clang = xno; then
  1081. # These warnings break gcc 4.0.2 and clang, but work on gcc 4.2
  1082. CFLAGS="$CFLAGS -Wnormalized=id -Woverride-init"
  1083. fi
  1084. if test x$have_gcc43 = xyes ; then
  1085. # These warnings break gcc 4.2 and work on gcc 4.3
  1086. # XXXX020 See if any of these work with earlier versions.
  1087. CFLAGS="$CFLAGS -Wextra -Warray-bounds"
  1088. fi
  1089. if test x$have_shorten64_flag = xyes ; then
  1090. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  1091. fi
  1092. ##This will break the world on some 64-bit architectures
  1093. # CFLAGS="$CFLAGS -Winline"
  1094. fi
  1095. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
  1096. AC_CONFIG_FILES([
  1097. Doxyfile
  1098. Makefile
  1099. contrib/Makefile
  1100. contrib/suse/Makefile
  1101. contrib/suse/tor.sh
  1102. contrib/tor.logrotate
  1103. contrib/tor.sh
  1104. contrib/torctl
  1105. contrib/torify
  1106. doc/Makefile
  1107. src/Makefile
  1108. src/common/Makefile
  1109. src/config/Makefile
  1110. src/config/torrc.sample
  1111. src/or/Makefile
  1112. src/test/Makefile
  1113. src/tools/Makefile
  1114. src/tools/tor-fw-helper/Makefile
  1115. src/win32/Makefile
  1116. tor.spec
  1117. ])
  1118. AC_OUTPUT
  1119. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  1120. ./contrib/updateVersions.pl
  1121. fi