configure.in 39 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, 0.2.3.13-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 "$enable_local_appdata" = "yes"; then
  124. AC_DEFINE(ENABLE_LOCAL_APPDATA, 1,
  125. [Defined if we default to host local appdata paths on Windows])
  126. fi
  127. # Tor2web mode flag
  128. AC_ARG_ENABLE(tor2web-mode,
  129. AS_HELP_STRING(--enable-tor2web-mode, support tor2web non-anonymous mode),
  130. [if test x$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. AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
  225. dnl Enable C99 when compiling with MIPSpro
  226. AC_MSG_CHECKING([for MIPSpro compiler])
  227. AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [
  228. #if (defined(__sgi) && defined(_COMPILER_VERSION))
  229. #error
  230. return x(y);
  231. #endif
  232. ])],
  233. bmipspro=false; AC_MSG_RESULT(no),
  234. bmipspro=true; AC_MSG_RESULT(yes))
  235. if test "$bmipspro" = true; then
  236. CFLAGS="$CFLAGS -c99"
  237. fi
  238. AC_C_BIGENDIAN
  239. AC_SEARCH_LIBS(socket, [socket network])
  240. AC_SEARCH_LIBS(gethostbyname, [nsl])
  241. AC_SEARCH_LIBS(dlopen, [dl])
  242. AC_SEARCH_LIBS(inet_aton, [resolv])
  243. AC_SEARCH_LIBS([clock_gettime], [rt], [have_rt=yes])
  244. if test "$enable_threads" = "yes"; then
  245. AC_SEARCH_LIBS(pthread_create, [pthread])
  246. AC_SEARCH_LIBS(pthread_detach, [pthread])
  247. fi
  248. dnl -------------------------------------------------------------------
  249. dnl Check for functions before libevent, since libevent-1.2 apparently
  250. dnl exports strlcpy without defining it in a header.
  251. AC_CHECK_FUNCS(
  252. _NSGetEnviron \
  253. accept4 \
  254. clock_gettime \
  255. flock \
  256. ftime \
  257. getaddrinfo \
  258. getifaddrs \
  259. getrlimit \
  260. gettimeofday \
  261. gmtime_r \
  262. inet_aton \
  263. ioctl \
  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 $TOR_LIBEVENT_LIBS"
  418. fi
  419. fi
  420. AC_SUBST(TOR_LIBEVENT_LIBS)
  421. dnl ------------------------------------------------------
  422. dnl Where do you live, libm?
  423. dnl On some platforms (Haiku/BeOS) the math library is
  424. dnl part of libroot. In which case don't link against lm
  425. TOR_LIB_MATH=""
  426. save_LIBS="$LIBS"
  427. AC_SEARCH_LIBS(pow, [m], , AC_MSG_ERROR([Could not find pow in libm or libc.]))
  428. if test "$ac_cv_search_pow" != "none required"; then
  429. TOR_LIB_MATH="$ac_cv_search_pow"
  430. fi
  431. LIBS="$save_LIBS"
  432. AC_SUBST(TOR_LIB_MATH)
  433. dnl ------------------------------------------------------
  434. dnl Where do you live, openssl? And how do we call you?
  435. tor_openssl_pkg_redhat="openssl"
  436. tor_openssl_pkg_debian="libssl"
  437. tor_openssl_devpkg_redhat="openssl-devel"
  438. tor_openssl_devpkg_debian="libssl-dev"
  439. ALT_openssl_WITHVAL=""
  440. AC_ARG_WITH(ssl-dir,
  441. [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
  442. [
  443. if test "x$withval" != xno && test "x$withval" != "x" ; then
  444. ALT_openssl_WITHVAL="$withval"
  445. fi
  446. ])
  447. TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
  448. [#include <openssl/rand.h>],
  449. [void RAND_add(const void *buf, int num, double entropy);],
  450. [RAND_add((void*)0,0,0); exit(0);], [],
  451. [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
  452. dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
  453. echo "tor_cv_library_openssl_dir is $tor_cv_library_openssl_dir"
  454. if test "$enable_static_openssl" = "yes"; then
  455. if test "$tor_cv_library_openssl_dir" = "(system)"; then
  456. AC_MSG_ERROR("You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl")
  457. else
  458. TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a"
  459. fi
  460. else
  461. TOR_OPENSSL_LIBS="-lssl -lcrypto"
  462. fi
  463. AC_SUBST(TOR_OPENSSL_LIBS)
  464. dnl ------------------------------------------------------
  465. dnl Where do you live, zlib? And how do we call you?
  466. tor_zlib_pkg_redhat="zlib"
  467. tor_zlib_pkg_debian="zlib1g"
  468. tor_zlib_devpkg_redhat="zlib-devel"
  469. tor_zlib_devpkg_debian="zlib1g-dev"
  470. TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
  471. [#include <zlib.h>],
  472. [const char * zlibVersion(void);],
  473. [zlibVersion(); exit(0);], [--with-zlib-dir],
  474. [/opt/zlib])
  475. if test "$enable_static_zlib" = "yes"; then
  476. if test "$tor_cv_library_zlib_dir" = "(system)"; then
  477. AC_MSG_ERROR("You must specify an explicit --with-zlib-dir=x option when
  478. using --enable-static-zlib")
  479. else
  480. TOR_ZLIB_LIBS="$TOR_LIBDIR_zlib/libz.a"
  481. echo "$TOR_LIBDIR_zlib/libz.a"
  482. fi
  483. else
  484. TOR_ZLIB_LIBS="-lz"
  485. fi
  486. AC_SUBST(TOR_ZLIB_LIBS)
  487. dnl Make sure to enable support for large off_t if available.
  488. dnl ------------------------------------------------------
  489. dnl Where do you live, libnatpmp? And how do we call you?
  490. dnl There are no packages for Debian or Redhat as of this patch
  491. if test "$natpmp" = "true"; then
  492. AC_DEFINE(NAT_PMP, 1, [Define to 1 if we are building with nat-pmp.])
  493. TOR_SEARCH_LIBRARY(libnatpmp, $trylibnatpmpdir, [-lnatpmp $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
  494. [#include <natpmp.h>],
  495. [#ifdef _WIN32
  496. #define STATICLIB
  497. #endif
  498. #include <natpmp.h>],
  499. [ int r;
  500. natpmp_t natpmp;
  501. natpmpresp_t response;
  502. r = initnatpmp(&natpmp, 0, 0);],
  503. [printf("initnatpmp() returned %d (%s)\n", r, r?"FAILED":"SUCCESS");
  504. exit(0);],
  505. [--with-libnatpmp-dir],
  506. [/usr/lib/])
  507. fi
  508. dnl ------------------------------------------------------
  509. dnl Where do you live, libminiupnpc? And how do we call you?
  510. dnl There are no packages for Debian or Redhat as of this patch
  511. if test "$upnp" = "true"; then
  512. AC_DEFINE(MINIUPNPC, 1, [Define to 1 if we are building with UPnP.])
  513. TOR_SEARCH_LIBRARY(libminiupnpc, $trylibminiupnpcdir, [-lminiupnpc $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
  514. [#include <miniupnpc/miniwget.h>
  515. #include <miniupnpc/miniupnpc.h>
  516. #include <miniupnpc/upnpcommands.h>],
  517. [void upnpDiscover(int delay, const char * multicastif,
  518. const char * minissdpdsock, int sameport);],
  519. [upnpDiscover(1, 0, 0, 0); exit(0);],
  520. [--with-libminiupnpc-dir],
  521. [/usr/lib/])
  522. fi
  523. AC_SYS_LARGEFILE
  524. AC_CHECK_HEADERS(
  525. assert.h \
  526. errno.h \
  527. fcntl.h \
  528. signal.h \
  529. string.h \
  530. sys/fcntl.h \
  531. sys/stat.h \
  532. sys/time.h \
  533. sys/types.h \
  534. time.h \
  535. unistd.h
  536. , , 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.))
  537. dnl These headers are not essential
  538. AC_CHECK_HEADERS(
  539. arpa/inet.h \
  540. crt_externs.h \
  541. grp.h \
  542. ifaddrs.h \
  543. inttypes.h \
  544. limits.h \
  545. linux/types.h \
  546. machine/limits.h \
  547. malloc.h \
  548. malloc/malloc.h \
  549. malloc_np.h \
  550. netdb.h \
  551. netinet/in.h \
  552. netinet/in6.h \
  553. pwd.h \
  554. stdint.h \
  555. sys/file.h \
  556. sys/ioctl.h \
  557. sys/limits.h \
  558. sys/mman.h \
  559. sys/param.h \
  560. sys/prctl.h \
  561. sys/resource.h \
  562. sys/socket.h \
  563. sys/syslimits.h \
  564. sys/time.h \
  565. sys/types.h \
  566. sys/un.h \
  567. sys/utime.h \
  568. sys/wait.h \
  569. syslog.h \
  570. utime.h
  571. )
  572. TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
  573. [#ifdef HAVE_MALLOC_H
  574. #include <malloc.h>
  575. #endif
  576. #ifdef HAVE_MALLOC_MALLOC_H
  577. #include <malloc/malloc.h>
  578. #endif])
  579. AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
  580. [#ifdef HAVE_SYS_TYPES_H
  581. #include <sys/types.h>
  582. #endif
  583. #ifdef HAVE_SYS_SOCKET_H
  584. #include <sys/socket.h>
  585. #endif])
  586. AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
  587. [#ifdef HAVE_SYS_TYPES_H
  588. #include <sys/types.h>
  589. #endif
  590. #ifdef HAVE_SYS_SOCKET_H
  591. #include <sys/socket.h>
  592. #endif
  593. #ifdef HAVE_NET_IF_H
  594. #include <net/if.h>
  595. #endif])
  596. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  597. linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
  598. [#ifdef HAVE_SYS_TYPES_H
  599. #include <sys/types.h>
  600. #endif
  601. #ifdef HAVE_SYS_SOCKET_H
  602. #include <sys/socket.h>
  603. #endif
  604. #ifdef HAVE_LIMITS_H
  605. #include <limits.h>
  606. #endif
  607. #ifdef HAVE_LINUX_TYPES_H
  608. #include <linux/types.h>
  609. #endif
  610. #ifdef HAVE_NETINET_IN6_H
  611. #include <netinet/in6.h>
  612. #endif
  613. #ifdef HAVE_NETINET_IN_H
  614. #include <netinet/in.h>
  615. #endif])
  616. if test x$transparent = xtrue ; then
  617. transparent_ok=0
  618. if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
  619. transparent_ok=1
  620. fi
  621. if test x$linux_netfilter_ipv4 = x1 ; then
  622. transparent_ok=1
  623. fi
  624. if test x$transparent_ok = x1 ; then
  625. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  626. case $host in
  627. *-*-openbsd*)
  628. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  629. esac
  630. else
  631. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  632. fi
  633. fi
  634. AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
  635. [#ifdef HAVE_SYS_TYPES_H
  636. #include <sys/types.h>
  637. #endif
  638. #ifdef HAVE_SYS_TIME_H
  639. #include <sys/time.h>
  640. #endif])
  641. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  642. dnl Watch out.
  643. AC_CHECK_SIZEOF(int8_t)
  644. AC_CHECK_SIZEOF(int16_t)
  645. AC_CHECK_SIZEOF(int32_t)
  646. AC_CHECK_SIZEOF(int64_t)
  647. AC_CHECK_SIZEOF(uint8_t)
  648. AC_CHECK_SIZEOF(uint16_t)
  649. AC_CHECK_SIZEOF(uint32_t)
  650. AC_CHECK_SIZEOF(uint64_t)
  651. AC_CHECK_SIZEOF(intptr_t)
  652. AC_CHECK_SIZEOF(uintptr_t)
  653. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  654. AC_CHECK_SIZEOF(char)
  655. AC_CHECK_SIZEOF(short)
  656. AC_CHECK_SIZEOF(int)
  657. AC_CHECK_SIZEOF(long)
  658. AC_CHECK_SIZEOF(long long)
  659. AC_CHECK_SIZEOF(__int64)
  660. AC_CHECK_SIZEOF(void *)
  661. AC_CHECK_SIZEOF(time_t)
  662. AC_CHECK_SIZEOF(size_t)
  663. AC_CHECK_TYPES([uint, u_char, ssize_t])
  664. dnl used to include sockaddr_storage, but everybody has that.
  665. AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
  666. [#ifdef HAVE_SYS_TYPES_H
  667. #include <sys/types.h>
  668. #endif
  669. #ifdef HAVE_NETINET_IN_H
  670. #include <netinet/in.h>
  671. #endif
  672. #ifdef HAVE_NETINET_IN6_H
  673. #include <netinet/in6.h>
  674. #endif
  675. #ifdef HAVE_SYS_SOCKET_H
  676. #include <sys/socket.h>
  677. #endif
  678. #ifdef _WIN32
  679. #define WIN32_WINNT 0x400
  680. #define _WIN32_WINNT 0x400
  681. #define WIN32_LEAN_AND_MEAN
  682. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  683. #include <winsock.h>
  684. #else
  685. #include <winsock2.h>
  686. #include <ws2tcpip.h>
  687. #endif
  688. #endif
  689. ])
  690. AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
  691. [#ifdef HAVE_SYS_TYPES_H
  692. #include <sys/types.h>
  693. #endif
  694. #ifdef HAVE_NETINET_IN_H
  695. #include <netinet/in.h>
  696. #endif
  697. #ifdef HAVE_NETINET_IN6_H
  698. #include <netinet/in6.h>
  699. #endif
  700. #ifdef HAVE_SYS_SOCKET_H
  701. #include <sys/socket.h>
  702. #endif
  703. #ifdef _WIN32
  704. #define WIN32_WINNT 0x400
  705. #define _WIN32_WINNT 0x400
  706. #define WIN32_LEAN_AND_MEAN
  707. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  708. #include <winsock.h>
  709. #else
  710. #include <winsock2.h>
  711. #include <ws2tcpip.h>
  712. #endif
  713. #endif
  714. ])
  715. AC_CHECK_TYPES([rlim_t], , ,
  716. [#ifdef HAVE_SYS_TYPES_H
  717. #include <sys/types.h>
  718. #endif
  719. #ifdef HAVE_SYS_TIME_H
  720. #include <sys/time.h>
  721. #endif
  722. #ifdef HAVE_SYS_RESOURCE_H
  723. #include <sys/resource.h>
  724. #endif
  725. ])
  726. AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
  727. AC_RUN_IFELSE([AC_LANG_SOURCE([
  728. #ifdef HAVE_SYS_TYPES_H
  729. #include <sys/types.h>
  730. #endif
  731. #ifdef HAVE_SYS_TIME_H
  732. #include <sys/time.h>
  733. #endif
  734. #ifdef HAVE_TIME_H
  735. #include <time.h>
  736. #endif
  737. int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }])],
  738. tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes, tor_cv_time_t_signed=cross)
  739. ])
  740. if test "$tor_cv_time_t_signed" = cross; then
  741. AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  742. fi
  743. if test "$tor_cv_time_t_signed" != no; then
  744. AC_DEFINE([TIME_T_IS_SIGNED], 1,
  745. [Define to 1 iff time_t is signed])
  746. fi
  747. AC_CACHE_CHECK([whether size_t is signed], tor_cv_size_t_signed, [
  748. AC_RUN_IFELSE([AC_LANG_SOURCE([
  749. #ifdef HAVE_SYS_TYPES_H
  750. #include <sys/types.h>
  751. #endif
  752. int main(int c, char**v) { if (((size_t)-1)<0) return 1; else return 0; }])],
  753. tor_cv_size_t_signed=no, tor_cv_size_t_signed=yes, tor_cv_size_t_signed=cross)
  754. ])
  755. if test "$tor_cv_size_t_signed" = cross; then
  756. AC_MSG_NOTICE([Cross compiling: assuming that size_t is not signed.])
  757. fi
  758. if test "$tor_cv_size_t_signed" = yes; then
  759. AC_MSG_ERROR([You have a signed size_t; that's grossly nonconformant.])
  760. fi
  761. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  762. #ifdef HAVE_SYS_SOCKET_H
  763. #include <sys/socket.h>
  764. #endif
  765. ])
  766. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  767. AC_CHECK_SIZEOF(cell_t)
  768. # Now make sure that NULL can be represented as zero bytes.
  769. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  770. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  771. [[#include <stdlib.h>
  772. #include <string.h>
  773. #include <stdio.h>
  774. #ifdef HAVE_STDDEF_H
  775. #include <stddef.h>
  776. #endif
  777. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  778. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  779. [tor_cv_null_is_zero=yes],
  780. [tor_cv_null_is_zero=no],
  781. [tor_cv_null_is_zero=cross])])
  782. if test "$tor_cv_null_is_zero" = cross ; then
  783. # Cross-compiling; let's hope that the target isn't raving mad.
  784. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  785. fi
  786. if test "$tor_cv_null_is_zero" != no; then
  787. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  788. [Define to 1 iff memset(0) sets pointers to NULL])
  789. fi
  790. # And what happens when we malloc zero?
  791. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  792. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  793. [[#include <stdlib.h>
  794. #include <string.h>
  795. #include <stdio.h>
  796. #ifdef HAVE_STDDEF_H
  797. #include <stddef.h>
  798. #endif
  799. int main () { return malloc(0)?0:1; }]])],
  800. [tor_cv_malloc_zero_works=yes],
  801. [tor_cv_malloc_zero_works=no],
  802. [tor_cv_malloc_zero_works=cross])])
  803. if test "$tor_cv_malloc_zero_works" = cross; then
  804. # Cross-compiling; let's hope that the target isn't raving mad.
  805. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  806. fi
  807. if test "$tor_cv_malloc_zero_works" = yes; then
  808. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  809. [Define to 1 iff malloc(0) returns a pointer])
  810. fi
  811. # whether we seem to be in a 2s-complement world.
  812. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  813. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  814. [[int main () { int problem = ((-99) != (~99)+1);
  815. return problem ? 1 : 0; }]])],
  816. [tor_cv_twos_complement=yes],
  817. [tor_cv_twos_complement=no],
  818. [tor_cv_twos_complement=cross])])
  819. if test "$tor_cv_twos_complement" = cross ; then
  820. # Cross-compiling; let's hope that the target isn't raving mad.
  821. AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
  822. fi
  823. if test "$tor_cv_twos_complement" != no ; then
  824. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  825. [Define to 1 iff we represent negative integers with two's complement])
  826. fi
  827. # What does shifting a negative value do?
  828. AC_CACHE_CHECK([whether right-shift on negative values does sign-extension], tor_cv_sign_extend,
  829. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  830. [[int main () { int okay = (-60 >> 8) == -1; return okay ? 0 : 1; }]])],
  831. [tor_cv_sign_extend=yes],
  832. [tor_cv_sign_extend=no],
  833. [tor_cv_sign_extend=cross])])
  834. if test "$tor_cv_sign_extend" = cross ; then
  835. # Cross-compiling; let's hope that the target isn't raving mad.
  836. AC_MSG_NOTICE([Cross-compiling: we'll assume that right-shifting negative integers causes sign-extension])
  837. fi
  838. if test "$tor_cv_sign_extend" != no ; then
  839. AC_DEFINE([RSHIFT_DOES_SIGN_EXTEND], 1,
  840. [Define to 1 iff right-shifting a negative value performs sign-extension])
  841. fi
  842. # Whether we should use the dmalloc memory allocation debugging library.
  843. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  844. AC_ARG_WITH(dmalloc,
  845. [ --with-dmalloc Use debug memory allocation library. ],
  846. [if [[ "$withval" = "yes" ]]; then
  847. dmalloc=1
  848. AC_MSG_RESULT(yes)
  849. else
  850. dmalloc=1
  851. AC_MSG_RESULT(no)
  852. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  853. )
  854. if [[ $dmalloc -eq 1 ]]; then
  855. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  856. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  857. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  858. AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
  859. AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
  860. fi
  861. AC_ARG_WITH(tcmalloc,
  862. [ --with-tcmalloc Use tcmalloc memory allocation library. ],
  863. [ tcmalloc=yes ], [ tcmalloc=no ])
  864. if test x$tcmalloc = xyes ; then
  865. LDFLAGS="-ltcmalloc $LDFLAGS"
  866. fi
  867. # By default, we're going to assume we don't have mlockall()
  868. # bionic and other platforms have various broken mlockall subsystems.
  869. # Some systems don't have a working mlockall, some aren't linkable,
  870. # and some have it but don't declare it.
  871. AC_CHECK_FUNCS(mlockall)
  872. AC_CHECK_DECLS([mlockall], , , [
  873. #ifdef HAVE_SYS_MMAN_H
  874. #include <sys/mman.h>
  875. #endif])
  876. # Allow user to specify an alternate syslog facility
  877. AC_ARG_WITH(syslog-facility,
  878. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  879. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  880. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  881. AC_SUBST(LOGFACILITY)
  882. # Check if we have getresuid and getresgid
  883. AC_CHECK_FUNCS(getresuid getresgid)
  884. # Check for gethostbyname_r in all its glorious incompatible versions.
  885. # (This logic is based on that in Python's configure.in)
  886. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  887. [Define this if you have any gethostbyname_r()])
  888. AC_CHECK_FUNC(gethostbyname_r, [
  889. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  890. OLD_CFLAGS=$CFLAGS
  891. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  892. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
  893. #include <netdb.h>
  894. ], [[
  895. char *cp1, *cp2;
  896. struct hostent *h1, *h2;
  897. int i1, i2;
  898. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  899. ]])],[
  900. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  901. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  902. [Define this if gethostbyname_r takes 6 arguments])
  903. AC_MSG_RESULT(6)
  904. ], [
  905. AC_TRY_COMPILE([
  906. #include <netdb.h>
  907. ], [
  908. char *cp1, *cp2;
  909. struct hostent *h1;
  910. int i1, i2;
  911. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  912. ], [
  913. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  914. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  915. [Define this if gethostbyname_r takes 5 arguments])
  916. AC_MSG_RESULT(5)
  917. ], [
  918. AC_TRY_COMPILE([
  919. #include <netdb.h>
  920. ], [
  921. char *cp1;
  922. struct hostent *h1;
  923. struct hostent_data hd;
  924. (void) gethostbyname_r(cp1,h1,&hd);
  925. ], [
  926. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  927. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  928. [Define this if gethostbyname_r takes 3 arguments])
  929. AC_MSG_RESULT(3)
  930. ], [
  931. AC_MSG_RESULT(0)
  932. ])
  933. ])
  934. ])
  935. CFLAGS=$OLD_CFLAGS
  936. ])
  937. AC_CACHE_CHECK([whether the C compiler supports __func__],
  938. tor_cv_have_func_macro,
  939. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  940. #include <stdio.h>
  941. int main(int c, char **v) { puts(__func__); }])],
  942. tor_cv_have_func_macro=yes,
  943. tor_cv_have_func_macro=no))
  944. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  945. tor_cv_have_FUNC_macro,
  946. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  947. #include <stdio.h>
  948. int main(int c, char **v) { puts(__FUNC__); }])],
  949. tor_cv_have_FUNC_macro=yes,
  950. tor_cv_have_FUNC_macro=no))
  951. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  952. tor_cv_have_FUNCTION_macro,
  953. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  954. #include <stdio.h>
  955. int main(int c, char **v) { puts(__FUNCTION__); }])],
  956. tor_cv_have_FUNCTION_macro=yes,
  957. tor_cv_have_FUNCTION_macro=no))
  958. AC_CACHE_CHECK([whether we have extern char **environ already declared],
  959. tor_cv_have_environ_declared,
  960. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  961. /* We define _GNU_SOURCE here because it is also defined in compat.c.
  962. * Without it environ doesn't get declared. */
  963. #define _GNU_SOURCE
  964. #include <unistd.h>
  965. int main(int c, char **v) { char **t = environ; }])],
  966. tor_cv_have_environ_declared=yes,
  967. tor_cv_have_environ_declared=no))
  968. if test "$tor_cv_have_func_macro" = 'yes'; then
  969. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  970. fi
  971. if test "$tor_cv_have_FUNC_macro" = 'yes'; then
  972. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  973. fi
  974. if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
  975. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  976. [Defined if the compiler supports __FUNCTION__])
  977. fi
  978. if test "$tor_cv_have_environ_declared" = 'yes'; then
  979. AC_DEFINE(HAVE_EXTERN_ENVIRON_DECLARED__, 1,
  980. [Defined if we have extern char **environ already declared])
  981. fi
  982. # $prefix stores the value of the --prefix command line option, or
  983. # NONE if the option wasn't set. In the case that it wasn't set, make
  984. # it be the default, so that we can use it to expand directories now.
  985. if test "x$prefix" = "xNONE"; then
  986. prefix=$ac_default_prefix
  987. fi
  988. # and similarly for $exec_prefix
  989. if test "x$exec_prefix" = "xNONE"; then
  990. exec_prefix=$prefix
  991. fi
  992. if test "x$BUILDDIR" = "x"; then
  993. BUILDDIR=`pwd`
  994. fi
  995. AC_SUBST(BUILDDIR)
  996. AH_TEMPLATE([BUILDDIR],[tor's build directory])
  997. AC_DEFINE_UNQUOTED(BUILDDIR,"$BUILDDIR")
  998. if test "x$CONFDIR" = "x"; then
  999. CONFDIR=`eval echo $sysconfdir/tor`
  1000. fi
  1001. AC_SUBST(CONFDIR)
  1002. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  1003. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  1004. BINDIR=`eval echo $bindir`
  1005. AC_SUBST(BINDIR)
  1006. LOCALSTATEDIR=`eval echo $localstatedir`
  1007. AC_SUBST(LOCALSTATEDIR)
  1008. if test "$bwin32" = true; then
  1009. # Test if the linker supports the --nxcompat and --dynamicbase options
  1010. # for Windows
  1011. save_LDFLAGS="$LDFLAGS"
  1012. LDFLAGS="-Wl,--nxcompat -Wl,--dynamicbase"
  1013. AC_MSG_CHECKING([whether the linker supports DllCharacteristics])
  1014. AC_LINK_IFELSE([AC_LANG_PROGRAM([])],
  1015. [AC_MSG_RESULT([yes])]
  1016. [save_LDFLAGS="$save_LDFLAGS $LDFLAGS"],
  1017. [AC_MSG_RESULT([no])]
  1018. )
  1019. LDFLAGS="$save_LDFLAGS"
  1020. fi
  1021. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  1022. # than autoconf's macros like.
  1023. if test "$GCC" = yes; then
  1024. # Disable GCC's strict aliasing checks. They are an hours-to-debug
  1025. # accident waiting to happen.
  1026. CFLAGS="$CFLAGS -Wall -fno-strict-aliasing"
  1027. else
  1028. # Autoconf sets -g -O2 by default. Override optimization level
  1029. # for non-gcc compilers
  1030. CFLAGS="$CFLAGS -O"
  1031. enable_gcc_warnings=no
  1032. enable_gcc_warnings_advisory=no
  1033. fi
  1034. # OS X Lion started deprecating the system openssl. Let's just disable
  1035. # all deprecation warnings on OS X. Also, to potentially make the binary
  1036. # a little smaller, let's enable dead_strip.
  1037. case "$host_os" in
  1038. darwin*)
  1039. CFLAGS="$CFLAGS -Wno-deprecated-declarations"
  1040. LDFLAGS="$LDFLAGS -dead_strip" ;;
  1041. esac
  1042. # Add some more warnings which we use in development but not in the
  1043. # released versions. (Some relevant gcc versions can't handle these.)
  1044. if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
  1045. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1046. #if !defined(__GNUC__) || (__GNUC__ < 4)
  1047. #error
  1048. #endif])], have_gcc4=yes, have_gcc4=no)
  1049. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1050. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  1051. #error
  1052. #endif])], have_gcc42=yes, have_gcc42=no)
  1053. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1054. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
  1055. #error
  1056. #endif])], have_gcc43=yes, have_gcc43=no)
  1057. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1058. #if !defined(__clang__)
  1059. #error
  1060. #endif])], have_clang=yes, have_clang=no)
  1061. save_CFLAGS="$CFLAGS"
  1062. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  1063. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], have_shorten64_flag=yes,
  1064. have_shorten64_flag=no)
  1065. CFLAGS="$save_CFLAGS"
  1066. case $host in
  1067. *-*-openbsd*)
  1068. # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default.
  1069. # That's fine, except that the headers don't pass -Wredundant-decls.
  1070. # Therefore, let's disable -Wsystem-headers when we're building
  1071. # with maximal warnings on OpenBSD.
  1072. CFLAGS="$CFLAGS -Wno-system-headers" ;;
  1073. esac
  1074. CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith"
  1075. CFLAGS="$CFLAGS -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings"
  1076. CFLAGS="$CFLAGS -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2"
  1077. CFLAGS="$CFLAGS -Wwrite-strings -Wmissing-declarations -Wredundant-decls"
  1078. CFLAGS="$CFLAGS -Wnested-externs -Wbad-function-cast -Wswitch-enum"
  1079. if test x$enable_gcc_warnings = xyes; then
  1080. CFLAGS="$CFLAGS -Werror"
  1081. fi
  1082. # Disabled, so we can use mallinfo(): -Waggregate-return
  1083. if test x$have_gcc4 = xyes ; then
  1084. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  1085. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  1086. fi
  1087. if test x$have_gcc42 = xyes ; then
  1088. # These warnings break gcc 4.0.2 and work on gcc 4.2
  1089. # XXXX020 See if any of these work with earlier versions.
  1090. CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wstrict-overflow=1"
  1091. # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
  1092. fi
  1093. if test x$have_gcc42 = xyes && test x$have_clang = xno; then
  1094. # These warnings break gcc 4.0.2 and clang, but work on gcc 4.2
  1095. CFLAGS="$CFLAGS -Wnormalized=id -Woverride-init"
  1096. fi
  1097. if test x$have_gcc43 = xyes ; then
  1098. # These warnings break gcc 4.2 and work on gcc 4.3
  1099. # XXXX020 See if any of these work with earlier versions.
  1100. CFLAGS="$CFLAGS -Wextra -Warray-bounds"
  1101. fi
  1102. if test x$have_shorten64_flag = xyes ; then
  1103. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  1104. fi
  1105. ##This will break the world on some 64-bit architectures
  1106. # CFLAGS="$CFLAGS -Winline"
  1107. fi
  1108. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
  1109. AC_CONFIG_FILES([
  1110. Doxyfile
  1111. Makefile
  1112. contrib/Makefile
  1113. contrib/suse/Makefile
  1114. contrib/suse/tor.sh
  1115. contrib/tor.logrotate
  1116. contrib/tor.sh
  1117. contrib/torctl
  1118. contrib/torify
  1119. doc/Makefile
  1120. src/Makefile
  1121. src/common/Makefile
  1122. src/config/Makefile
  1123. src/config/torrc.sample
  1124. src/or/Makefile
  1125. src/test/Makefile
  1126. src/tools/Makefile
  1127. src/tools/tor-fw-helper/Makefile
  1128. src/win32/Makefile
  1129. tor.spec
  1130. ])
  1131. AC_OUTPUT
  1132. if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  1133. ./contrib/updateVersions.pl
  1134. fi