configure.ac 50 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) 2007-2014, The Tor Project, Inc.
  4. dnl See LICENSE for licensing information
  5. AC_INIT([tor],[0.2.6.1-alpha-dev])
  6. AC_CONFIG_SRCDIR([src/or/main.c])
  7. AC_CONFIG_MACRO_DIR([m4])
  8. AM_INIT_AUTOMAKE
  9. m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
  10. AC_CONFIG_HEADERS([orconfig.h])
  11. AC_CANONICAL_HOST
  12. if test -f /etc/redhat-release ; then
  13. if test -f /usr/kerberos/include ; then
  14. CPPFLAGS="$CPPFLAGS -I/usr/kerberos/include"
  15. fi
  16. fi
  17. # Not a no-op; we want to make sure that CPPFLAGS is set before we use
  18. # the += operator on it in src/or/Makefile.am
  19. CPPFLAGS="$CPPFLAGS -I\${top_srcdir}/src/common"
  20. #XXXX020 We should make these enabled or not, before 0.2.0.x-final
  21. AC_ARG_ENABLE(buf-freelists,
  22. AS_HELP_STRING(--enable-buf-freelists, enable freelists for buffer RAM))
  23. AC_ARG_ENABLE(mempools,
  24. AS_HELP_STRING(--enable-mempools, enable mempools for relay cells))
  25. AC_ARG_ENABLE(openbsd-malloc,
  26. AS_HELP_STRING(--enable-openbsd-malloc, Use malloc code from openbsd. Linux only))
  27. AC_ARG_ENABLE(instrument-downloads,
  28. AS_HELP_STRING(--enable-instrument-downloads, Instrument downloads of directory resources etc.))
  29. AC_ARG_ENABLE(static-openssl,
  30. AS_HELP_STRING(--enable-static-openssl, Link against a static openssl library. Requires --with-openssl-dir))
  31. AC_ARG_ENABLE(static-libevent,
  32. AS_HELP_STRING(--enable-static-libevent, Link against a static libevent library. Requires --with-libevent-dir))
  33. AC_ARG_ENABLE(static-zlib,
  34. AS_HELP_STRING(--enable-static-zlib, Link against a static zlib library. Requires --with-zlib-dir))
  35. AC_ARG_ENABLE(static-tor,
  36. AS_HELP_STRING(--enable-static-tor, Create an entirely static Tor binary. Requires --with-openssl-dir and --with-libevent-dir and --with-zlib-dir))
  37. AC_ARG_ENABLE(unittests,
  38. AS_HELP_STRING(--disable-unittests, [Don't build unit tests for Tor. Risky!]))
  39. AC_ARG_ENABLE(coverage,
  40. AS_HELP_STRING(--enable-coverage, [Enable coverage support in the unit-test build]))
  41. AM_CONDITIONAL(UNITTESTS_ENABLED, test x$enable_unittests != xno)
  42. AM_CONDITIONAL(COVERAGE_ENABLED, test x$enable_coverage = xyes)
  43. if test "$enable_static_tor" = "yes"; then
  44. enable_static_libevent="yes";
  45. enable_static_openssl="yes";
  46. enable_static_zlib="yes";
  47. CFLAGS="$CFLAGS -static"
  48. fi
  49. if test x$enable_buf_freelists = xyes; then
  50. AC_DEFINE(ENABLE_BUF_FREELISTS, 1,
  51. [Defined if we try to use freelists for buffer RAM chunks])
  52. fi
  53. AM_CONDITIONAL(USE_MEMPOOLS, test x$enable_mempools = xyes)
  54. if test x$enable_mempools = xyes; then
  55. AC_DEFINE(ENABLE_MEMPOOLS, 1,
  56. [Defined if we try to use mempools for cells being relayed])
  57. fi
  58. AM_CONDITIONAL(USE_OPENBSD_MALLOC, test x$enable_openbsd_malloc = xyes)
  59. if test x$enable_instrument_downloads = xyes; then
  60. AC_DEFINE(INSTRUMENT_DOWNLOADS, 1,
  61. [Defined if we want to keep track of how much of each kind of resource we download.])
  62. fi
  63. AC_ARG_ENABLE(transparent,
  64. AS_HELP_STRING(--disable-transparent, disable transparent proxy support),
  65. [case "${enableval}" in
  66. yes) transparent=true ;;
  67. no) transparent=false ;;
  68. *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
  69. esac], [transparent=true])
  70. AC_ARG_ENABLE(asciidoc,
  71. AS_HELP_STRING(--disable-asciidoc, don't use asciidoc (disables building of manpages)),
  72. [case "${enableval}" in
  73. yes) asciidoc=true ;;
  74. no) asciidoc=false ;;
  75. *) AC_MSG_ERROR(bad value for --disable-asciidoc) ;;
  76. esac], [asciidoc=true])
  77. # By default, we're not ready to ship a NAT-PMP aware Tor
  78. AC_ARG_ENABLE(nat-pmp,
  79. AS_HELP_STRING(--enable-nat-pmp, enable NAT-PMP support),
  80. [case "${enableval}" in
  81. yes) natpmp=true ;;
  82. no) natpmp=false ;;
  83. * ) AC_MSG_ERROR(bad value for --enable-nat-pmp) ;;
  84. esac], [natpmp=false])
  85. # By default, we're not ready to ship a UPnP aware Tor
  86. AC_ARG_ENABLE(upnp,
  87. AS_HELP_STRING(--enable-upnp, enable UPnP support),
  88. [case "${enableval}" in
  89. yes) upnp=true ;;
  90. no) upnp=false ;;
  91. * ) AC_MSG_ERROR(bad value for --enable-upnp) ;;
  92. esac], [upnp=false])
  93. case $host in
  94. *-*-solaris* )
  95. AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
  96. ;;
  97. esac
  98. AC_ARG_ENABLE(gcc-warnings,
  99. AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
  100. AC_ARG_ENABLE(gcc-warnings-advisory,
  101. AS_HELP_STRING(--enable-gcc-warnings-advisory, [enable verbose warnings, excluding -Werror]))
  102. dnl Others suggest '/gs /safeseh /nxcompat /dynamicbase' for non-gcc on Windows
  103. AC_ARG_ENABLE(gcc-hardening,
  104. AS_HELP_STRING(--disable-gcc-hardening, disable compiler security checks))
  105. AC_ARG_ENABLE(expensive-hardening,
  106. AS_HELP_STRING(--enable-expensive-hardening, enable more expensive compiler hardening; makes Tor slower))
  107. dnl Linker hardening options
  108. dnl Currently these options are ELF specific - you can't use this with MacOSX
  109. AC_ARG_ENABLE(linker-hardening,
  110. AS_HELP_STRING(--disable-linker-hardening, disable linker security fixups))
  111. AC_ARG_ENABLE(local-appdata,
  112. AS_HELP_STRING(--enable-local-appdata, default to host local application data paths on Windows))
  113. if test "$enable_local_appdata" = "yes"; then
  114. AC_DEFINE(ENABLE_LOCAL_APPDATA, 1,
  115. [Defined if we default to host local appdata paths on Windows])
  116. fi
  117. # Tor2web mode flag
  118. AC_ARG_ENABLE(tor2web-mode,
  119. AS_HELP_STRING(--enable-tor2web-mode, support tor2web non-anonymous mode),
  120. [if test x$enableval = xyes; then
  121. CFLAGS="$CFLAGS -D ENABLE_TOR2WEB_MODE=1"
  122. fi])
  123. AC_ARG_ENABLE(bufferevents,
  124. AS_HELP_STRING(--enable-bufferevents, use Libevent's buffered IO.))
  125. AC_ARG_ENABLE(tool-name-check,
  126. AS_HELP_STRING(--disable-tool-name-check, check for sanely named toolchain when cross-compiling))
  127. AC_ARG_ENABLE(seccomp,
  128. AS_HELP_STRING(--disable-seccomp, do not attempt to use libseccomp))
  129. AC_ARG_ENABLE(libscrypt,
  130. AS_HELP_STRING(--disable-libscrypt, do not attempt to use libscrypt))
  131. dnl check for the correct "ar" when cross-compiling
  132. AN_MAKEVAR([AR], [AC_PROG_AR])
  133. AN_PROGRAM([ar], [AC_PROG_AR])
  134. AC_DEFUN([AC_PROG_AR], [AC_CHECK_TOOL([AR], [ar], [ar])])
  135. AC_PROG_AR
  136. dnl Check whether the above macro has settled for a simply named tool even
  137. dnl though we're cross compiling. We must do this before running AC_PROG_CC,
  138. dnl because that will find any cc on the system, not only the cross-compiler,
  139. dnl and then verify that a binary built with this compiler runs on the
  140. dnl build system. It will then come to the false conclusion that we're not
  141. dnl cross-compiling.
  142. if test x$enable_tool_name_check != xno; then
  143. if test x$ac_tool_warned = xyes; then
  144. AC_MSG_ERROR([We are cross compiling but could not find a properly named toolchain. Do you have your cross-compiling toolchain in PATH? (You can --disable-tool-name-check to ignore this.)])
  145. elif test "x$ac_ct_AR" != x -a x$cross_compiling = xmaybe; then
  146. AC_MSG_ERROR([We think we are cross compiling but could not find a properly named toolchain. Do you have your cross-compiling toolchain in PATH? (You can --disable-tool-name-check to ignore this.)])
  147. fi
  148. fi
  149. AC_PROG_CC
  150. AC_PROG_CPP
  151. AC_PROG_MAKE_SET
  152. AC_PROG_RANLIB
  153. dnl autoconf 2.59 appears not to support AC_PROG_SED
  154. AC_CHECK_PROG([SED],[sed],[sed],[/bin/false])
  155. dnl check for asciidoc and a2x
  156. AC_PATH_PROG([ASCIIDOC], [asciidoc], none)
  157. AC_PATH_PROGS([A2X], [a2x a2x.py], none)
  158. AM_CONDITIONAL(USE_ASCIIDOC, test x$asciidoc = xtrue)
  159. AM_CONDITIONAL(USE_FW_HELPER, test x$natpmp = xtrue || test x$upnp = xtrue)
  160. AM_CONDITIONAL(NAT_PMP, test x$natpmp = xtrue)
  161. AM_CONDITIONAL(MINIUPNPC, test x$upnp = xtrue)
  162. AM_PROG_CC_C_O
  163. AC_PROG_CC_C99
  164. AC_ARG_VAR(PYTHON)
  165. AC_CHECK_PROGS(PYTHON, [python python2 python2.7 python3 python3.3])
  166. if test "x$PYTHON" = "x"; then
  167. AC_MSG_WARN([Python unavailable; some tests will not be run.])
  168. fi
  169. AM_CONDITIONAL(USEPYTHON, [test "x$PYTHON" != "x"])
  170. ifdef([AC_C_FLEXIBLE_ARRAY_MEMBER], [
  171. AC_C_FLEXIBLE_ARRAY_MEMBER
  172. ], [
  173. dnl Maybe we've got an old autoconf...
  174. AC_CACHE_CHECK([for flexible array members],
  175. tor_cv_c_flexarray,
  176. [AC_COMPILE_IFELSE(
  177. AC_LANG_PROGRAM([
  178. struct abc { int a; char b[]; };
  179. ], [
  180. struct abc *def = malloc(sizeof(struct abc)+sizeof(char));
  181. def->b[0] = 33;
  182. ]),
  183. [tor_cv_c_flexarray=yes],
  184. [tor_cv_c_flexarray=no])])
  185. if test $tor_cv_flexarray = yes ; then
  186. AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [], [Define to nothing if C supports flexible array members, and to 1 if it does not.])
  187. else
  188. AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [1], [Define to nothing if C supports flexible array members, and to 1 if it does not.])
  189. fi
  190. ])
  191. AC_CACHE_CHECK([for working C99 mid-block declaration syntax],
  192. tor_cv_c_c99_decl,
  193. [AC_COMPILE_IFELSE(
  194. [AC_LANG_PROGRAM([], [int x; x = 3; int y; y = 4 + x;])],
  195. [tor_cv_c_c99_decl=yes],
  196. [tor_cv_c_c99_decl=no] )])
  197. if test "$tor_cv_c_c99_decl" != "yes"; then
  198. AC_MSG_ERROR([Your compiler doesn't support c99 mid-block declarations. This is required as of Tor 0.2.6.x])
  199. fi
  200. AC_CACHE_CHECK([for working C99 designated initializers],
  201. tor_cv_c_c99_designated_init,
  202. [AC_COMPILE_IFELSE(
  203. [AC_LANG_PROGRAM([struct s { int a; int b; };],
  204. [[ struct s ss = { .b = 5, .a = 6 }; ]])],
  205. [tor_cv_c_c99_designated_init=yes],
  206. [tor_cv_c_c99_designated_init=no] )])
  207. if test "$tor_cv_c_c99_designated_init" != "yes"; then
  208. AC_MSG_ERROR([Your compiler doesn't support c99 designated initializers. This is required as of Tor 0.2.6.x])
  209. fi
  210. AC_PATH_PROG([SHA1SUM], [sha1sum], none)
  211. AC_PATH_PROG([OPENSSL], [openssl], none)
  212. TORUSER=_tor
  213. AC_ARG_WITH(tor-user,
  214. [ --with-tor-user=NAME Specify username for tor daemon ],
  215. [
  216. TORUSER=$withval
  217. ]
  218. )
  219. AC_SUBST(TORUSER)
  220. TORGROUP=_tor
  221. AC_ARG_WITH(tor-group,
  222. [ --with-tor-group=NAME Specify group name for tor daemon ],
  223. [
  224. TORGROUP=$withval
  225. ]
  226. )
  227. AC_SUBST(TORGROUP)
  228. dnl If _WIN32 is defined and non-zero, we are building for win32
  229. AC_MSG_CHECKING([for win32])
  230. AC_RUN_IFELSE([AC_LANG_SOURCE([
  231. int main(int c, char **v) {
  232. #ifdef _WIN32
  233. #if _WIN32
  234. return 0;
  235. #else
  236. return 1;
  237. #endif
  238. #else
  239. return 2;
  240. #endif
  241. }])],
  242. bwin32=true; AC_MSG_RESULT([yes]),
  243. bwin32=false; AC_MSG_RESULT([no]),
  244. bwin32=cross; AC_MSG_RESULT([cross])
  245. )
  246. if test "$bwin32" = cross; then
  247. AC_MSG_CHECKING([for win32 (cross)])
  248. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  249. #ifdef _WIN32
  250. int main(int c, char **v) {return 0;}
  251. #else
  252. #error
  253. int main(int c, char **v) {return x(y);}
  254. #endif
  255. ])],
  256. bwin32=true; AC_MSG_RESULT([yes]),
  257. bwin32=false; AC_MSG_RESULT([no]))
  258. fi
  259. AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
  260. dnl Enable C99 when compiling with MIPSpro
  261. AC_MSG_CHECKING([for MIPSpro compiler])
  262. AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [
  263. #if (defined(__sgi) && defined(_COMPILER_VERSION))
  264. #error
  265. return x(y);
  266. #endif
  267. ])],
  268. bmipspro=false; AC_MSG_RESULT(no),
  269. bmipspro=true; AC_MSG_RESULT(yes))
  270. if test "$bmipspro" = true; then
  271. CFLAGS="$CFLAGS -c99"
  272. fi
  273. AC_C_BIGENDIAN
  274. AC_SEARCH_LIBS(socket, [socket network])
  275. AC_SEARCH_LIBS(gethostbyname, [nsl])
  276. AC_SEARCH_LIBS(dlopen, [dl])
  277. AC_SEARCH_LIBS(inet_aton, [resolv])
  278. saved_LIBS="$LIBS"
  279. AC_SEARCH_LIBS([clock_gettime], [rt])
  280. if test "$LIBS" != "$saved_LIBS"; then
  281. # Looks like we need -lrt for clock_gettime().
  282. have_rt=yes
  283. fi
  284. AC_SEARCH_LIBS(pthread_create, [pthread])
  285. AC_SEARCH_LIBS(pthread_detach, [pthread])
  286. dnl -------------------------------------------------------------------
  287. dnl Check for functions before libevent, since libevent-1.2 apparently
  288. dnl exports strlcpy without defining it in a header.
  289. AC_CHECK_FUNCS(
  290. _NSGetEnviron \
  291. accept4 \
  292. backtrace \
  293. backtrace_symbols_fd \
  294. clock_gettime \
  295. flock \
  296. ftime \
  297. getaddrinfo \
  298. getifaddrs \
  299. getrlimit \
  300. gettimeofday \
  301. gmtime_r \
  302. inet_aton \
  303. ioctl \
  304. issetugid \
  305. llround \
  306. localtime_r \
  307. lround \
  308. memmem \
  309. prctl \
  310. rint \
  311. sigaction \
  312. socketpair \
  313. strlcat \
  314. strlcpy \
  315. strnlen \
  316. strptime \
  317. strtok_r \
  318. strtoull \
  319. sysconf \
  320. sysctl \
  321. uname \
  322. usleep \
  323. vasprintf \
  324. _vscprintf
  325. )
  326. if test "$bwin32" != true; then
  327. AC_CHECK_HEADERS(pthread.h)
  328. AC_CHECK_FUNCS(pthread_create)
  329. fi
  330. dnl ------------------------------------------------------
  331. dnl Where do you live, libevent? And how do we call you?
  332. if test "$bwin32" = true; then
  333. TOR_LIB_WS32=-lws2_32
  334. TOR_LIB_IPHLPAPI=-liphlpapi
  335. # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  336. # think it's actually necessary.
  337. TOR_LIB_GDI=-lgdi32
  338. else
  339. TOR_LIB_WS32=
  340. TOR_LIB_GDI=
  341. fi
  342. AC_SUBST(TOR_LIB_WS32)
  343. AC_SUBST(TOR_LIB_GDI)
  344. AC_SUBST(TOR_LIB_IPHLPAPI)
  345. dnl We need to do this before we try our disgusting hack below.
  346. AC_CHECK_HEADERS([sys/types.h])
  347. dnl This is a disgusting hack so we safely include older libevent headers.
  348. AC_CHECK_TYPE(u_int64_t, unsigned long long)
  349. AC_CHECK_TYPE(u_int32_t, unsigned long)
  350. AC_CHECK_TYPE(u_int16_t, unsigned short)
  351. AC_CHECK_TYPE(u_int8_t, unsigned char)
  352. tor_libevent_pkg_redhat="libevent"
  353. tor_libevent_pkg_debian="libevent-dev"
  354. tor_libevent_devpkg_redhat="libevent-devel"
  355. tor_libevent_devpkg_debian="libevent-dev"
  356. dnl On Gnu/Linux or any place we require it, we'll add librt to the Libevent
  357. dnl linking for static builds.
  358. STATIC_LIBEVENT_FLAGS=""
  359. if test "$enable_static_libevent" = "yes"; then
  360. if test "$have_rt" = yes; then
  361. STATIC_LIBEVENT_FLAGS=" -lrt "
  362. fi
  363. fi
  364. TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32], [
  365. #ifdef _WIN32
  366. #include <winsock2.h>
  367. #endif
  368. #include <stdlib.h>
  369. #include <sys/time.h>
  370. #include <sys/types.h>
  371. #include <event.h>], [
  372. #ifdef _WIN32
  373. #include <winsock2.h>
  374. #endif
  375. void exit(int); void *event_init(void);],
  376. [
  377. #ifdef _WIN32
  378. {WSADATA d; WSAStartup(0x101,&d); }
  379. #endif
  380. event_init(); exit(0);
  381. ], [--with-libevent-dir], [/opt/libevent])
  382. dnl Now check for particular libevent functions.
  383. save_LIBS="$LIBS"
  384. save_LDFLAGS="$LDFLAGS"
  385. save_CPPFLAGS="$CPPFLAGS"
  386. LIBS="-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32 $LIBS"
  387. LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
  388. CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
  389. AC_CHECK_FUNCS([event_get_version \
  390. event_get_version_number \
  391. event_get_method \
  392. event_set_log_callback \
  393. evutil_secure_rng_set_urandom_device_file \
  394. evutil_secure_rng_init \
  395. event_base_loopexit])
  396. AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
  397. [#include <event.h>
  398. ])
  399. AC_CHECK_HEADERS(event2/event.h event2/dns.h event2/bufferevent_ssl.h)
  400. LIBS="$save_LIBS"
  401. LDFLAGS="$save_LDFLAGS"
  402. CPPFLAGS="$save_CPPFLAGS"
  403. AM_CONDITIONAL(USE_EXTERNAL_EVDNS, test x$ac_cv_header_event2_dns_h = xyes)
  404. if test "$enable_static_libevent" = "yes"; then
  405. if test "$tor_cv_library_libevent_dir" = "(system)"; then
  406. AC_MSG_ERROR("You must specify an explicit --with-libevent-dir=x option when using --enable-static-libevent")
  407. else
  408. TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent.a $STATIC_LIBEVENT_FLAGS"
  409. fi
  410. else
  411. TOR_LIBEVENT_LIBS="-levent"
  412. fi
  413. dnl This isn't the best test for Libevent 2.0.3-alpha. Once it's released,
  414. dnl we can do much better.
  415. if test "$enable_bufferevents" = "yes" ; then
  416. if test "$ac_cv_header_event2_bufferevent_ssl_h" != "yes" ; then
  417. AC_MSG_ERROR([You've asked for bufferevent support, but you're using a version of Libevent without SSL support. This won't work. We need Libevent 2.0.8-rc or later, and you don't seem to even have Libevent 2.0.3-alpha.])
  418. else
  419. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent"
  420. # Check for the right version. First see if version detection works.
  421. AC_MSG_CHECKING([whether we can detect the Libevent version])
  422. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  423. #include <event2/event.h>
  424. #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 10
  425. #error
  426. int x = y(zz);
  427. #else
  428. int x = 1;
  429. #endif
  430. ])], [event_version_number_works=yes; AC_MSG_RESULT([yes]) ],
  431. [event_version_number_works=no; AC_MSG_RESULT([no])])
  432. if test "$event_version_number_works" != 'yes'; then
  433. AC_MSG_WARN([Version detection on Libevent seems broken. Your Libevent installation is probably screwed up or very old.])
  434. else
  435. AC_MSG_CHECKING([whether Libevent is new enough for bufferevents])
  436. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  437. #include <event2/event.h>
  438. #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 0x02000d00
  439. #error
  440. int x = y(zz);
  441. #else
  442. int x = 1;
  443. #endif
  444. ])], [ AC_MSG_RESULT([yes]) ],
  445. [ AC_MSG_RESULT([no])
  446. AC_MSG_ERROR([Libevent does not seem new enough to support bufferevents. We require 2.0.13-stable or later]) ] )
  447. fi
  448. fi
  449. fi
  450. LIBS="$save_LIBS"
  451. LDFLAGS="$save_LDFLAGS"
  452. CPPFLAGS="$save_CPPFLAGS"
  453. AM_CONDITIONAL(USE_BUFFEREVENTS, test "$enable_bufferevents" = "yes")
  454. if test "$enable_bufferevents" = "yes"; then
  455. AC_DEFINE(USE_BUFFEREVENTS, 1, [Defined if we're going to use Libevent's buffered IO API])
  456. if test "$enable_static_libevent" = "yes"; then
  457. TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent_openssl.a $TOR_LIBEVENT_LIBS"
  458. else
  459. TOR_LIBEVENT_LIBS="-levent_openssl $TOR_LIBEVENT_LIBS"
  460. fi
  461. fi
  462. AC_SUBST(TOR_LIBEVENT_LIBS)
  463. dnl ------------------------------------------------------
  464. dnl Where do you live, libm?
  465. dnl On some platforms (Haiku/BeOS) the math library is
  466. dnl part of libroot. In which case don't link against lm
  467. TOR_LIB_MATH=""
  468. save_LIBS="$LIBS"
  469. AC_SEARCH_LIBS(pow, [m], , AC_MSG_ERROR([Could not find pow in libm or libc.]))
  470. if test "$ac_cv_search_pow" != "none required"; then
  471. TOR_LIB_MATH="$ac_cv_search_pow"
  472. fi
  473. LIBS="$save_LIBS"
  474. AC_SUBST(TOR_LIB_MATH)
  475. dnl ------------------------------------------------------
  476. dnl Where do you live, openssl? And how do we call you?
  477. tor_openssl_pkg_redhat="openssl"
  478. tor_openssl_pkg_debian="libssl-dev"
  479. tor_openssl_devpkg_redhat="openssl-devel"
  480. tor_openssl_devpkg_debian="libssl-dev"
  481. ALT_openssl_WITHVAL=""
  482. AC_ARG_WITH(ssl-dir,
  483. [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
  484. [
  485. if test "x$withval" != xno && test "x$withval" != "x" ; then
  486. ALT_openssl_WITHVAL="$withval"
  487. fi
  488. ])
  489. TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
  490. [#include <openssl/rand.h>],
  491. [void RAND_add(const void *buf, int num, double entropy);],
  492. [RAND_add((void*)0,0,0); exit(0);], [],
  493. [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
  494. dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
  495. if test "$enable_static_openssl" = "yes"; then
  496. if test "$tor_cv_library_openssl_dir" = "(system)"; then
  497. AC_MSG_ERROR("You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl")
  498. else
  499. TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a"
  500. fi
  501. else
  502. TOR_OPENSSL_LIBS="-lssl -lcrypto"
  503. fi
  504. AC_SUBST(TOR_OPENSSL_LIBS)
  505. AC_CHECK_MEMBERS([struct ssl_method_st.get_cipher_by_char], , ,
  506. [#include <openssl/ssl.h>
  507. ])
  508. dnl ------------------------------------------------------
  509. dnl Where do you live, zlib? And how do we call you?
  510. tor_zlib_pkg_redhat="zlib"
  511. tor_zlib_pkg_debian="zlib1g"
  512. tor_zlib_devpkg_redhat="zlib-devel"
  513. tor_zlib_devpkg_debian="zlib1g-dev"
  514. TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
  515. [#include <zlib.h>],
  516. [const char * zlibVersion(void);],
  517. [zlibVersion(); exit(0);], [--with-zlib-dir],
  518. [/opt/zlib])
  519. if test "$enable_static_zlib" = "yes"; then
  520. if test "$tor_cv_library_zlib_dir" = "(system)"; then
  521. AC_MSG_ERROR("You must specify an explicit --with-zlib-dir=x option when
  522. using --enable-static-zlib")
  523. else
  524. TOR_ZLIB_LIBS="$TOR_LIBDIR_zlib/libz.a"
  525. fi
  526. else
  527. TOR_ZLIB_LIBS="-lz"
  528. fi
  529. AC_SUBST(TOR_ZLIB_LIBS)
  530. dnl ---------------------------------------------------------------------
  531. dnl Now that we know about our major libraries, we can check for compiler
  532. dnl and linker hardening options. We need to do this with the libraries known,
  533. dnl since sometimes the linker will like an option but not be willing to
  534. dnl use it with a build of a library.
  535. all_ldflags_for_check="$TOR_LDFLAGS_zlib $TOR_LDFLAGS_openssl $TOR_LDFLAGS_libevent"
  536. all_libs_for_check="$TOR_ZLIB_LIBS $TOR_LIB_MATH $TOR_LIBEVENT_LIBS $TOR_OPENSSL_LIBS $TOR_LIB_WS32 $TOR_LIB_GDI"
  537. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  538. #if !defined(__clang__)
  539. #error
  540. #endif])], have_clang=yes, have_clang=no)
  541. if test x$enable_gcc_hardening != xno; then
  542. CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2"
  543. if test x$have_clang = xyes; then
  544. TOR_CHECK_CFLAGS(-Qunused-arguments)
  545. fi
  546. TOR_CHECK_CFLAGS(-fstack-protector-all, also_link)
  547. AS_VAR_PUSHDEF([can_compile], [tor_cv_cflags_-fstack-protector-all])
  548. AS_VAR_PUSHDEF([can_link], [tor_can_link_-fstack-protector-all])
  549. m4_ifdef([AS_VAR_IF],[
  550. AS_VAR_IF(can_compile, [yes],
  551. AS_VAR_IF(can_link, [yes],
  552. [],
  553. AC_MSG_ERROR([We tried to build with stack protection; it looks like your compiler supports it but your libc does not provide it. Are you missing libssp? (You can --disable-gcc-hardening to ignore this error.)]))
  554. )])
  555. AS_VAR_POPDEF([can_link])
  556. AS_VAR_POPDEF([can_compile])
  557. TOR_CHECK_CFLAGS(-Wstack-protector)
  558. TOR_CHECK_CFLAGS(-fwrapv)
  559. TOR_CHECK_CFLAGS(--param ssp-buffer-size=1)
  560. if test "$bwin32" = "false"; then
  561. TOR_CHECK_CFLAGS(-fPIE)
  562. TOR_CHECK_LDFLAGS(-pie, "$all_ldflags_for_check", "$all_libs_for_check")
  563. fi
  564. fi
  565. if test x$enable_expensive_hardening = xyes ; then
  566. TOR_CHECK_CFLAGS([-fsanitize=address])
  567. TOR_CHECK_CFLAGS([-fsanitize=undefined])
  568. TOR_CHECK_CFLAGS([-fno-omit-frame-pointer])
  569. fi
  570. if test x$enable_linker_hardening != xno; then
  571. TOR_CHECK_LDFLAGS(-z relro -z now, "$all_ldflags_for_check", "$all_libs_for_check")
  572. fi
  573. # For backtrace support
  574. TOR_CHECK_LDFLAGS(-rdynamic)
  575. dnl ------------------------------------------------------
  576. dnl Now see if we have a -fomit-frame-pointer compiler option.
  577. saved_CFLAGS="$CFLAGS"
  578. TOR_CHECK_CFLAGS(-fomit-frame-pointer)
  579. F_OMIT_FRAME_POINTER=''
  580. if test "$saved_CFLAGS" != "$CFLAGS"; then
  581. if test x$enable_expensive_hardening != xyes ; then
  582. F_OMIT_FRAME_POINTER='-fomit-frame-pointer'
  583. fi
  584. fi
  585. CFLAGS="$saved_CFLAGS"
  586. AC_SUBST(F_OMIT_FRAME_POINTER)
  587. dnl ------------------------------------------------------
  588. dnl If we are adding -fomit-frame-pointer (or if the compiler's doing it
  589. dnl for us, as GCC 4.6 and later do at many optimization levels), then
  590. dnl we should try to add -fasynchronous-unwind-tables so that our backtrace
  591. dnl code will work.
  592. TOR_CHECK_CFLAGS(-fasynchronous-unwind-tables)
  593. dnl ------------------------------------------------------
  594. dnl Where do you live, libnatpmp? And how do we call you?
  595. dnl There are no packages for Debian or Redhat as of this patch
  596. if test "$natpmp" = "true"; then
  597. AC_DEFINE(NAT_PMP, 1, [Define to 1 if we are building with nat-pmp.])
  598. TOR_SEARCH_LIBRARY(libnatpmp, $trylibnatpmpdir, [-lnatpmp $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
  599. [#include <natpmp.h>],
  600. [#ifdef _WIN32
  601. #define STATICLIB
  602. #endif
  603. #include <natpmp.h>],
  604. [ int r;
  605. natpmp_t natpmp;
  606. natpmpresp_t response;
  607. r = initnatpmp(&natpmp, 0, 0);],
  608. [printf("initnatpmp() returned %d (%s)\n", r, r?"FAILED":"SUCCESS");
  609. exit(0);],
  610. [--with-libnatpmp-dir],
  611. [/usr/lib/])
  612. fi
  613. dnl ------------------------------------------------------
  614. dnl Where do you live, libminiupnpc? And how do we call you?
  615. dnl There are no packages for Debian or Redhat as of this patch
  616. if test "$upnp" = "true"; then
  617. AC_DEFINE(MINIUPNPC, 1, [Define to 1 if we are building with UPnP.])
  618. dnl Before we call TOR_SEARCH_LIBRARY we'll do a quick compile test
  619. dnl to see if we have miniupnpc-1.5 or -1.6
  620. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <miniupnpc/miniupnpc.h>],
  621. [upnpDiscover(1, 0, 0, 0);exit(0);])],[miniupnpc15="true"],[miniupnpc15="false"])
  622. if test "$miniupnpc15" = "true" ; then
  623. AC_DEFINE([MINIUPNPC15],[1],[libminiupnpc version 1.5 found])
  624. TOR_SEARCH_LIBRARY(libminiupnpc, $trylibminiupnpcdir, [-lminiupnpc $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
  625. [#include <miniupnpc/miniwget.h>
  626. #include <miniupnpc/miniupnpc.h>
  627. #include <miniupnpc/upnpcommands.h>],
  628. [void upnpDiscover(int delay, const char * multicastif,
  629. const char * minissdpdsock, int sameport);],
  630. [upnpDiscover(1, 0, 0, 0); exit(0);],
  631. [--with-libminiupnpc-dir],
  632. [/usr/lib/])
  633. else
  634. TOR_SEARCH_LIBRARY(libminiupnpc, $trylibminiupnpcdir, [-lminiupnpc $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
  635. [#include <miniupnpc/miniwget.h>
  636. #include <miniupnpc/miniupnpc.h>
  637. #include <miniupnpc/upnpcommands.h>],
  638. [void upnpDiscover(int delay, const char * multicastif,
  639. const char * minissdpdsock, int sameport, int ipv6, int * error);],
  640. [upnpDiscover(1, 0, 0, 0, 0, 0); exit(0);],
  641. [--with-libminiupnpc-dir],
  642. [/usr/lib/])
  643. fi
  644. fi
  645. dnl ============================================================
  646. dnl Check for libseccomp
  647. if test "x$enable_seccomp" != "xno"; then
  648. AC_CHECK_HEADERS([seccomp.h])
  649. AC_SEARCH_LIBS(seccomp_init, [seccomp])
  650. fi
  651. dnl ============================================================
  652. dnl Check for libscrypt
  653. if test "x$enable_libscrypt" != "xno"; then
  654. AC_CHECK_HEADERS([libscrypt.h])
  655. AC_SEARCH_LIBS(libscrypt_scrypt, [scrypt])
  656. fi
  657. dnl ============================================================
  658. dnl We need an implementation of curve25519.
  659. dnl set these defaults.
  660. build_curve25519_donna=no
  661. build_curve25519_donna_c64=no
  662. use_curve25519_donna=no
  663. use_curve25519_nacl=no
  664. CURVE25519_LIBS=
  665. dnl The best choice is using curve25519-donna-c64, but that requires
  666. dnl that we
  667. AC_CACHE_CHECK([whether we can use curve25519-donna-c64],
  668. tor_cv_can_use_curve25519_donna_c64,
  669. [AC_RUN_IFELSE(
  670. [AC_LANG_PROGRAM([dnl
  671. #include <stdint.h>
  672. typedef unsigned uint128_t __attribute__((mode(TI)));
  673. int func(uint64_t a, uint64_t b) {
  674. uint128_t c = ((uint128_t)a) * b;
  675. int ok = ((uint64_t)(c>>96)) == 522859 &&
  676. (((uint64_t)(c>>64))&0xffffffffL) == 3604448702L &&
  677. (((uint64_t)(c>>32))&0xffffffffL) == 2351960064L &&
  678. (((uint64_t)(c))&0xffffffffL) == 0;
  679. return ok;
  680. }
  681. ], [dnl
  682. int ok = func( ((uint64_t)2000000000) * 1000000000,
  683. ((uint64_t)1234567890) << 24);
  684. return !ok;
  685. ])],
  686. [tor_cv_can_use_curve25519_donna_c64=yes],
  687. [tor_cv_can_use_curve25519_donna_c64=no],
  688. [AC_LINK_IFELSE(
  689. [AC_LANG_PROGRAM([dnl
  690. #include <stdint.h>
  691. typedef unsigned uint128_t __attribute__((mode(TI)));
  692. int func(uint64_t a, uint64_t b) {
  693. uint128_t c = ((uint128_t)a) * b;
  694. int ok = ((uint64_t)(c>>96)) == 522859 &&
  695. (((uint64_t)(c>>64))&0xffffffffL) == 3604448702L &&
  696. (((uint64_t)(c>>32))&0xffffffffL) == 2351960064L &&
  697. (((uint64_t)(c))&0xffffffffL) == 0;
  698. return ok;
  699. }
  700. ], [dnl
  701. int ok = func( ((uint64_t)2000000000) * 1000000000,
  702. ((uint64_t)1234567890) << 24);
  703. return !ok;
  704. ])],
  705. [tor_cv_can_use_curve25519_donna_c64=cross],
  706. [tor_cv_can_use_curve25519_donna_c64=no])])])
  707. AC_CHECK_HEADERS([crypto_scalarmult_curve25519.h \
  708. nacl/crypto_scalarmult_curve25519.h])
  709. AC_CACHE_CHECK([for nacl compiled with a fast curve25519 implementation],
  710. tor_cv_can_use_curve25519_nacl,
  711. [tor_saved_LIBS="$LIBS"
  712. LIBS="$LIBS -lnacl"
  713. AC_LINK_IFELSE(
  714. [AC_LANG_PROGRAM([dnl
  715. #ifdef HAVE_CRYPTO_SCALARMULT_CURVE25519_H
  716. #include <crypto_scalarmult_curve25519.h>
  717. #elif defined(HAVE_NACL_CRYPTO_SCALARMULT_CURVE25519_H)
  718. #include <nacl/crypto_scalarmult_curve25519.h>
  719. #endif
  720. #ifdef crypto_scalarmult_curve25519_ref_BYTES
  721. #error Hey, this is the reference implementation! That's not fast.
  722. #endif
  723. ], [
  724. unsigned char *a, *b, *c; crypto_scalarmult_curve25519(a,b,c);
  725. ])], [tor_cv_can_use_curve25519_nacl=yes],
  726. [tor_cv_can_use_curve25519_nacl=no])
  727. LIBS="$tor_saved_LIBS" ])
  728. dnl Okay, now we need to figure out which one to actually use. Fall back
  729. dnl to curve25519-donna.c
  730. if test x$tor_cv_can_use_curve25519_donna_c64 != xno; then
  731. build_curve25519_donna_c64=yes
  732. use_curve25519_donna=yes
  733. elif test x$tor_cv_can_use_curve25519_nacl = xyes; then
  734. use_curve25519_nacl=yes
  735. CURVE25519_LIBS=-lnacl
  736. else
  737. build_curve25519_donna=yes
  738. use_curve25519_donna=yes
  739. fi
  740. if test x$use_curve25519_donna = xyes; then
  741. AC_DEFINE(USE_CURVE25519_DONNA, 1,
  742. [Defined if we should use an internal curve25519_donna{,_c64} implementation])
  743. fi
  744. if test x$use_curve25519_nacl = xyes; then
  745. AC_DEFINE(USE_CURVE25519_NACL, 1,
  746. [Defined if we should use a curve25519 from nacl])
  747. fi
  748. AM_CONDITIONAL(BUILD_CURVE25519_DONNA, test x$build_curve25519_donna = xyes)
  749. AM_CONDITIONAL(BUILD_CURVE25519_DONNA_C64, test x$build_curve25519_donna_c64 = xyes)
  750. AC_SUBST(CURVE25519_LIBS)
  751. dnl Make sure to enable support for large off_t if available.
  752. AC_SYS_LARGEFILE
  753. AC_CHECK_HEADERS(
  754. assert.h \
  755. errno.h \
  756. fcntl.h \
  757. signal.h \
  758. string.h \
  759. sys/fcntl.h \
  760. sys/stat.h \
  761. sys/time.h \
  762. sys/types.h \
  763. time.h \
  764. unistd.h
  765. , , 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.))
  766. dnl These headers are not essential
  767. AC_CHECK_HEADERS(
  768. arpa/inet.h \
  769. crt_externs.h \
  770. execinfo.h \
  771. grp.h \
  772. ifaddrs.h \
  773. inttypes.h \
  774. limits.h \
  775. linux/types.h \
  776. machine/limits.h \
  777. malloc.h \
  778. malloc/malloc.h \
  779. malloc_np.h \
  780. netdb.h \
  781. netinet/in.h \
  782. netinet/in6.h \
  783. pwd.h \
  784. stdint.h \
  785. sys/file.h \
  786. sys/ioctl.h \
  787. sys/limits.h \
  788. sys/mman.h \
  789. sys/param.h \
  790. sys/prctl.h \
  791. sys/resource.h \
  792. sys/select.h \
  793. sys/socket.h \
  794. sys/sysctl.h \
  795. sys/syslimits.h \
  796. sys/time.h \
  797. sys/types.h \
  798. sys/un.h \
  799. sys/utime.h \
  800. sys/wait.h \
  801. syslog.h \
  802. utime.h
  803. )
  804. AC_CHECK_HEADERS(sys/param.h)
  805. AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
  806. [#ifdef HAVE_SYS_TYPES_H
  807. #include <sys/types.h>
  808. #endif
  809. #ifdef HAVE_SYS_SOCKET_H
  810. #include <sys/socket.h>
  811. #endif])
  812. AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
  813. [#ifdef HAVE_SYS_TYPES_H
  814. #include <sys/types.h>
  815. #endif
  816. #ifdef HAVE_SYS_SOCKET_H
  817. #include <sys/socket.h>
  818. #endif
  819. #ifdef HAVE_NET_IF_H
  820. #include <net/if.h>
  821. #endif])
  822. AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
  823. linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
  824. [#ifdef HAVE_SYS_TYPES_H
  825. #include <sys/types.h>
  826. #endif
  827. #ifdef HAVE_SYS_SOCKET_H
  828. #include <sys/socket.h>
  829. #endif
  830. #ifdef HAVE_LIMITS_H
  831. #include <limits.h>
  832. #endif
  833. #ifdef HAVE_LINUX_TYPES_H
  834. #include <linux/types.h>
  835. #endif
  836. #ifdef HAVE_NETINET_IN6_H
  837. #include <netinet/in6.h>
  838. #endif
  839. #ifdef HAVE_NETINET_IN_H
  840. #include <netinet/in.h>
  841. #endif])
  842. if test x$transparent = xtrue ; then
  843. transparent_ok=0
  844. if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
  845. transparent_ok=1
  846. fi
  847. if test x$linux_netfilter_ipv4 = x1 ; then
  848. transparent_ok=1
  849. fi
  850. if test x$transparent_ok = x1 ; then
  851. AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
  852. case $host in
  853. *-*-openbsd* | *-*-bitrig*)
  854. AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
  855. esac
  856. else
  857. AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
  858. fi
  859. fi
  860. AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
  861. [#ifdef HAVE_SYS_TYPES_H
  862. #include <sys/types.h>
  863. #endif
  864. #ifdef HAVE_SYS_TIME_H
  865. #include <sys/time.h>
  866. #endif])
  867. dnl In case we aren't given a working stdint.h, we'll need to grow our own.
  868. dnl Watch out.
  869. AC_CHECK_SIZEOF(int8_t)
  870. AC_CHECK_SIZEOF(int16_t)
  871. AC_CHECK_SIZEOF(int32_t)
  872. AC_CHECK_SIZEOF(int64_t)
  873. AC_CHECK_SIZEOF(uint8_t)
  874. AC_CHECK_SIZEOF(uint16_t)
  875. AC_CHECK_SIZEOF(uint32_t)
  876. AC_CHECK_SIZEOF(uint64_t)
  877. AC_CHECK_SIZEOF(intptr_t)
  878. AC_CHECK_SIZEOF(uintptr_t)
  879. dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
  880. AC_CHECK_SIZEOF(char)
  881. AC_CHECK_SIZEOF(short)
  882. AC_CHECK_SIZEOF(int)
  883. AC_CHECK_SIZEOF(long)
  884. AC_CHECK_SIZEOF(long long)
  885. AC_CHECK_SIZEOF(__int64)
  886. AC_CHECK_SIZEOF(void *)
  887. AC_CHECK_SIZEOF(time_t)
  888. AC_CHECK_SIZEOF(size_t)
  889. AC_CHECK_SIZEOF(pid_t)
  890. AC_CHECK_TYPES([uint, u_char, ssize_t])
  891. AC_PC_FROM_UCONTEXT([/bin/true])
  892. dnl used to include sockaddr_storage, but everybody has that.
  893. AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
  894. [#ifdef HAVE_SYS_TYPES_H
  895. #include <sys/types.h>
  896. #endif
  897. #ifdef HAVE_NETINET_IN_H
  898. #include <netinet/in.h>
  899. #endif
  900. #ifdef HAVE_NETINET_IN6_H
  901. #include <netinet/in6.h>
  902. #endif
  903. #ifdef HAVE_SYS_SOCKET_H
  904. #include <sys/socket.h>
  905. #endif
  906. #ifdef _WIN32
  907. #define _WIN32_WINNT 0x0501
  908. #define WIN32_LEAN_AND_MEAN
  909. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  910. #include <winsock.h>
  911. #else
  912. #include <winsock2.h>
  913. #include <ws2tcpip.h>
  914. #endif
  915. #endif
  916. ])
  917. AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
  918. [#ifdef HAVE_SYS_TYPES_H
  919. #include <sys/types.h>
  920. #endif
  921. #ifdef HAVE_NETINET_IN_H
  922. #include <netinet/in.h>
  923. #endif
  924. #ifdef HAVE_NETINET_IN6_H
  925. #include <netinet/in6.h>
  926. #endif
  927. #ifdef HAVE_SYS_SOCKET_H
  928. #include <sys/socket.h>
  929. #endif
  930. #ifdef _WIN32
  931. #define _WIN32_WINNT 0x0501
  932. #define WIN32_LEAN_AND_MEAN
  933. #if defined(_MSC_VER) && (_MSC_VER < 1300)
  934. #include <winsock.h>
  935. #else
  936. #include <winsock2.h>
  937. #include <ws2tcpip.h>
  938. #endif
  939. #endif
  940. ])
  941. AC_CHECK_TYPES([rlim_t], , ,
  942. [#ifdef HAVE_SYS_TYPES_H
  943. #include <sys/types.h>
  944. #endif
  945. #ifdef HAVE_SYS_TIME_H
  946. #include <sys/time.h>
  947. #endif
  948. #ifdef HAVE_SYS_RESOURCE_H
  949. #include <sys/resource.h>
  950. #endif
  951. ])
  952. AX_CHECK_SIGN([time_t],
  953. [ AC_DEFINE(TIME_T_IS_SIGNED, 1, [Define if time_t is signed]) ],
  954. [ : ], [
  955. #ifdef HAVE_SYS_TYPES_H
  956. #include <sys/types.h>
  957. #endif
  958. #ifdef HAVE_SYS_TIME_H
  959. #include <sys/time.h>
  960. #endif
  961. #ifdef HAVE_TIME_H
  962. #include <time.h>
  963. #endif
  964. ])
  965. if test "$ax_cv_decl_time_t_signed" = no; then
  966. AC_MSG_WARN([You have an unsigned time_t; some things will probably break. Please tell the Tor developers about your interesting platform.])
  967. fi
  968. AX_CHECK_SIGN([size_t],
  969. [ tor_cv_size_t_signed=yes ],
  970. [ tor_cv_size_t_signed=no ], [
  971. #ifdef HAVE_SYS_TYPES_H
  972. #include <sys/types.h>
  973. #endif
  974. ])
  975. if test "$ax_cv_decl_size_t_signed" = yes; then
  976. AC_MSG_ERROR([You have a signed size_t; that's grossly nonconformant.])
  977. fi
  978. AX_CHECK_SIGN([enum always],
  979. [ AC_DEFINE(ENUM_VALS_ARE_SIGNED, 1, [Define if enum is always signed]) ],
  980. [ : ], [
  981. enum always { AAA, BBB, CCC };
  982. ])
  983. AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
  984. #ifdef HAVE_SYS_SOCKET_H
  985. #include <sys/socket.h>
  986. #endif
  987. ])
  988. # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
  989. AC_CHECK_SIZEOF(cell_t)
  990. # Now make sure that NULL can be represented as zero bytes.
  991. AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
  992. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  993. [[#include <stdlib.h>
  994. #include <string.h>
  995. #include <stdio.h>
  996. #ifdef HAVE_STDDEF_H
  997. #include <stddef.h>
  998. #endif
  999. int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
  1000. return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
  1001. [tor_cv_null_is_zero=yes],
  1002. [tor_cv_null_is_zero=no],
  1003. [tor_cv_null_is_zero=cross])])
  1004. if test "$tor_cv_null_is_zero" = cross ; then
  1005. # Cross-compiling; let's hope that the target isn't raving mad.
  1006. AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
  1007. fi
  1008. if test "$tor_cv_null_is_zero" != no; then
  1009. AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
  1010. [Define to 1 iff memset(0) sets pointers to NULL])
  1011. fi
  1012. AC_CACHE_CHECK([whether memset(0) sets doubles to 0.0], tor_cv_dbl0_is_zero,
  1013. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  1014. [[#include <stdlib.h>
  1015. #include <string.h>
  1016. #include <stdio.h>
  1017. #ifdef HAVE_STDDEF_H
  1018. #include <stddef.h>
  1019. #endif
  1020. int main () { double d1,d2; d1=0; memset(&d2,0,sizeof(d2));
  1021. return memcmp(&d1,&d2,sizeof(d1))?1:0; }]])],
  1022. [tor_cv_dbl0_is_zero=yes],
  1023. [tor_cv_dbl0_is_zero=no],
  1024. [tor_cv_dbl0_is_zero=cross])])
  1025. if test "$tor_cv_dbl0_is_zero" = cross ; then
  1026. # Cross-compiling; let's hope that the target isn't raving mad.
  1027. AC_MSG_NOTICE([Cross-compiling: we'll assume that 0.0 can be represented as a sequence of 0-valued bytes.])
  1028. fi
  1029. if test "$tor_cv_dbl0_is_zero" != no; then
  1030. AC_DEFINE([DOUBLE_0_REP_IS_ZERO_BYTES], 1,
  1031. [Define to 1 iff memset(0) sets doubles to 0.0])
  1032. fi
  1033. # And what happens when we malloc zero?
  1034. AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
  1035. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  1036. [[#include <stdlib.h>
  1037. #include <string.h>
  1038. #include <stdio.h>
  1039. #ifdef HAVE_STDDEF_H
  1040. #include <stddef.h>
  1041. #endif
  1042. int main () { return malloc(0)?0:1; }]])],
  1043. [tor_cv_malloc_zero_works=yes],
  1044. [tor_cv_malloc_zero_works=no],
  1045. [tor_cv_malloc_zero_works=cross])])
  1046. if test "$tor_cv_malloc_zero_works" = cross; then
  1047. # Cross-compiling; let's hope that the target isn't raving mad.
  1048. AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
  1049. fi
  1050. if test "$tor_cv_malloc_zero_works" = yes; then
  1051. AC_DEFINE([MALLOC_ZERO_WORKS], 1,
  1052. [Define to 1 iff malloc(0) returns a pointer])
  1053. fi
  1054. # whether we seem to be in a 2s-complement world.
  1055. AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
  1056. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  1057. [[int main () { int problem = ((-99) != (~99)+1);
  1058. return problem ? 1 : 0; }]])],
  1059. [tor_cv_twos_complement=yes],
  1060. [tor_cv_twos_complement=no],
  1061. [tor_cv_twos_complement=cross])])
  1062. if test "$tor_cv_twos_complement" = cross ; then
  1063. # Cross-compiling; let's hope that the target isn't raving mad.
  1064. AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
  1065. fi
  1066. if test "$tor_cv_twos_complement" != no ; then
  1067. AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
  1068. [Define to 1 iff we represent negative integers with two's complement])
  1069. fi
  1070. # What does shifting a negative value do?
  1071. AC_CACHE_CHECK([whether right-shift on negative values does sign-extension], tor_cv_sign_extend,
  1072. [AC_RUN_IFELSE([AC_LANG_SOURCE(
  1073. [[int main () { int okay = (-60 >> 8) == -1; return okay ? 0 : 1; }]])],
  1074. [tor_cv_sign_extend=yes],
  1075. [tor_cv_sign_extend=no],
  1076. [tor_cv_sign_extend=cross])])
  1077. if test "$tor_cv_sign_extend" = cross ; then
  1078. # Cross-compiling; let's hope that the target isn't raving mad.
  1079. AC_MSG_NOTICE([Cross-compiling: we'll assume that right-shifting negative integers causes sign-extension])
  1080. fi
  1081. if test "$tor_cv_sign_extend" != no ; then
  1082. AC_DEFINE([RSHIFT_DOES_SIGN_EXTEND], 1,
  1083. [Define to 1 iff right-shifting a negative value performs sign-extension])
  1084. fi
  1085. # Whether we should use the dmalloc memory allocation debugging library.
  1086. AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
  1087. AC_ARG_WITH(dmalloc,
  1088. [ --with-dmalloc Use debug memory allocation library. ],
  1089. [if [[ "$withval" = "yes" ]]; then
  1090. dmalloc=1
  1091. AC_MSG_RESULT(yes)
  1092. else
  1093. dmalloc=1
  1094. AC_MSG_RESULT(no)
  1095. fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
  1096. )
  1097. if [[ $dmalloc -eq 1 ]]; then
  1098. AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  1099. AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  1100. AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  1101. AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
  1102. fi
  1103. AC_ARG_WITH(tcmalloc,
  1104. [ --with-tcmalloc Use tcmalloc memory allocation library. ],
  1105. [ tcmalloc=yes ], [ tcmalloc=no ])
  1106. if test x$tcmalloc = xyes ; then
  1107. LDFLAGS="-ltcmalloc $LDFLAGS"
  1108. fi
  1109. using_custom_malloc=no
  1110. if test x$enable_openbsd_malloc = xyes ; then
  1111. using_custom_malloc=yes
  1112. fi
  1113. if test x$tcmalloc = xyes ; then
  1114. using_custom_malloc=yes
  1115. fi
  1116. if test $using_custom_malloc = no ; then
  1117. AC_CHECK_FUNCS(mallinfo)
  1118. fi
  1119. # By default, we're going to assume we don't have mlockall()
  1120. # bionic and other platforms have various broken mlockall subsystems.
  1121. # Some systems don't have a working mlockall, some aren't linkable,
  1122. # and some have it but don't declare it.
  1123. AC_CHECK_FUNCS(mlockall)
  1124. AC_CHECK_DECLS([mlockall], , , [
  1125. #ifdef HAVE_SYS_MMAN_H
  1126. #include <sys/mman.h>
  1127. #endif])
  1128. # Allow user to specify an alternate syslog facility
  1129. AC_ARG_WITH(syslog-facility,
  1130. [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
  1131. syslog_facility="$withval", syslog_facility="LOG_DAEMON")
  1132. AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
  1133. AC_SUBST(LOGFACILITY)
  1134. # Check if we have getresuid and getresgid
  1135. AC_CHECK_FUNCS(getresuid getresgid)
  1136. # Check for gethostbyname_r in all its glorious incompatible versions.
  1137. # (This logic is based on that in Python's configure.in)
  1138. AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  1139. [Define this if you have any gethostbyname_r()])
  1140. AC_CHECK_FUNC(gethostbyname_r, [
  1141. AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  1142. OLD_CFLAGS=$CFLAGS
  1143. CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
  1144. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
  1145. #include <netdb.h>
  1146. ], [[
  1147. char *cp1, *cp2;
  1148. struct hostent *h1, *h2;
  1149. int i1, i2;
  1150. (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  1151. ]])],[
  1152. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  1153. AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
  1154. [Define this if gethostbyname_r takes 6 arguments])
  1155. AC_MSG_RESULT(6)
  1156. ], [
  1157. AC_TRY_COMPILE([
  1158. #include <netdb.h>
  1159. ], [
  1160. char *cp1, *cp2;
  1161. struct hostent *h1;
  1162. int i1, i2;
  1163. (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
  1164. ], [
  1165. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  1166. AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
  1167. [Define this if gethostbyname_r takes 5 arguments])
  1168. AC_MSG_RESULT(5)
  1169. ], [
  1170. AC_TRY_COMPILE([
  1171. #include <netdb.h>
  1172. ], [
  1173. char *cp1;
  1174. struct hostent *h1;
  1175. struct hostent_data hd;
  1176. (void) gethostbyname_r(cp1,h1,&hd);
  1177. ], [
  1178. AC_DEFINE(HAVE_GETHOSTBYNAME_R)
  1179. AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
  1180. [Define this if gethostbyname_r takes 3 arguments])
  1181. AC_MSG_RESULT(3)
  1182. ], [
  1183. AC_MSG_RESULT(0)
  1184. ])
  1185. ])
  1186. ])
  1187. CFLAGS=$OLD_CFLAGS
  1188. ])
  1189. AC_CACHE_CHECK([whether the C compiler supports __func__],
  1190. tor_cv_have_func_macro,
  1191. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  1192. #include <stdio.h>
  1193. int main(int c, char **v) { puts(__func__); }])],
  1194. tor_cv_have_func_macro=yes,
  1195. tor_cv_have_func_macro=no))
  1196. AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  1197. tor_cv_have_FUNC_macro,
  1198. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  1199. #include <stdio.h>
  1200. int main(int c, char **v) { puts(__FUNC__); }])],
  1201. tor_cv_have_FUNC_macro=yes,
  1202. tor_cv_have_FUNC_macro=no))
  1203. AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  1204. tor_cv_have_FUNCTION_macro,
  1205. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  1206. #include <stdio.h>
  1207. int main(int c, char **v) { puts(__FUNCTION__); }])],
  1208. tor_cv_have_FUNCTION_macro=yes,
  1209. tor_cv_have_FUNCTION_macro=no))
  1210. AC_CACHE_CHECK([whether we have extern char **environ already declared],
  1211. tor_cv_have_environ_declared,
  1212. AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  1213. /* We define _GNU_SOURCE here because it is also defined in compat.c.
  1214. * Without it environ doesn't get declared. */
  1215. #define _GNU_SOURCE
  1216. #ifdef HAVE_UNISTD_H
  1217. #include <unistd.h>
  1218. #endif
  1219. #include <stdlib.h>
  1220. int main(int c, char **v) { char **t = environ; }])],
  1221. tor_cv_have_environ_declared=yes,
  1222. tor_cv_have_environ_declared=no))
  1223. if test "$tor_cv_have_func_macro" = 'yes'; then
  1224. AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
  1225. fi
  1226. if test "$tor_cv_have_FUNC_macro" = 'yes'; then
  1227. AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
  1228. fi
  1229. if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
  1230. AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
  1231. [Defined if the compiler supports __FUNCTION__])
  1232. fi
  1233. if test "$tor_cv_have_environ_declared" = 'yes'; then
  1234. AC_DEFINE(HAVE_EXTERN_ENVIRON_DECLARED, 1,
  1235. [Defined if we have extern char **environ already declared])
  1236. fi
  1237. # $prefix stores the value of the --prefix command line option, or
  1238. # NONE if the option wasn't set. In the case that it wasn't set, make
  1239. # it be the default, so that we can use it to expand directories now.
  1240. if test "x$prefix" = "xNONE"; then
  1241. prefix=$ac_default_prefix
  1242. fi
  1243. # and similarly for $exec_prefix
  1244. if test "x$exec_prefix" = "xNONE"; then
  1245. exec_prefix=$prefix
  1246. fi
  1247. if test "x$BUILDDIR" = "x"; then
  1248. BUILDDIR=`pwd`
  1249. fi
  1250. AC_SUBST(BUILDDIR)
  1251. AH_TEMPLATE([BUILDDIR],[tor's build directory])
  1252. AC_DEFINE_UNQUOTED(BUILDDIR,"$BUILDDIR")
  1253. if test "x$CONFDIR" = "x"; then
  1254. CONFDIR=`eval echo $sysconfdir/tor`
  1255. fi
  1256. AC_SUBST(CONFDIR)
  1257. AH_TEMPLATE([CONFDIR],[tor's configuration directory])
  1258. AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
  1259. BINDIR=`eval echo $bindir`
  1260. AC_SUBST(BINDIR)
  1261. LOCALSTATEDIR=`eval echo $localstatedir`
  1262. AC_SUBST(LOCALSTATEDIR)
  1263. if test "$bwin32" = true; then
  1264. # Test if the linker supports the --nxcompat and --dynamicbase options
  1265. # for Windows
  1266. save_LDFLAGS="$LDFLAGS"
  1267. LDFLAGS="-Wl,--nxcompat -Wl,--dynamicbase"
  1268. AC_MSG_CHECKING([whether the linker supports DllCharacteristics])
  1269. AC_LINK_IFELSE([AC_LANG_PROGRAM([])],
  1270. [AC_MSG_RESULT([yes])]
  1271. [save_LDFLAGS="$save_LDFLAGS $LDFLAGS"],
  1272. [AC_MSG_RESULT([no])]
  1273. )
  1274. LDFLAGS="$save_LDFLAGS"
  1275. fi
  1276. # Set CFLAGS _after_ all the above checks, since our warnings are stricter
  1277. # than autoconf's macros like.
  1278. if test "$GCC" = yes; then
  1279. # Disable GCC's strict aliasing checks. They are an hours-to-debug
  1280. # accident waiting to happen.
  1281. CFLAGS="$CFLAGS -Wall -fno-strict-aliasing"
  1282. else
  1283. # Autoconf sets -g -O2 by default. Override optimization level
  1284. # for non-gcc compilers
  1285. CFLAGS="$CFLAGS -O"
  1286. enable_gcc_warnings=no
  1287. enable_gcc_warnings_advisory=no
  1288. fi
  1289. # OS X Lion started deprecating the system openssl. Let's just disable
  1290. # all deprecation warnings on OS X. Also, to potentially make the binary
  1291. # a little smaller, let's enable dead_strip.
  1292. case "$host_os" in
  1293. darwin*)
  1294. CFLAGS="$CFLAGS -Wno-deprecated-declarations"
  1295. LDFLAGS="$LDFLAGS -dead_strip" ;;
  1296. esac
  1297. # Add some more warnings which we use in development but not in the
  1298. # released versions. (Some relevant gcc versions can't handle these.)
  1299. if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
  1300. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1301. #if !defined(__GNUC__) || (__GNUC__ < 4)
  1302. #error
  1303. #endif])], have_gcc4=yes, have_gcc4=no)
  1304. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1305. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
  1306. #error
  1307. #endif])], have_gcc42=yes, have_gcc42=no)
  1308. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1309. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
  1310. #error
  1311. #endif])], have_gcc43=yes, have_gcc43=no)
  1312. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
  1313. #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 6)
  1314. #error
  1315. #endif])], have_gcc46=yes, have_gcc46=no)
  1316. save_CFLAGS="$CFLAGS"
  1317. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  1318. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], have_shorten64_flag=yes,
  1319. have_shorten64_flag=no)
  1320. CFLAGS="$save_CFLAGS"
  1321. case $host in
  1322. *-*-openbsd* | *-*-bitrig*)
  1323. # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default.
  1324. # That's fine, except that the headers don't pass -Wredundant-decls.
  1325. # Therefore, let's disable -Wsystem-headers when we're building
  1326. # with maximal warnings on OpenBSD.
  1327. CFLAGS="$CFLAGS -Wno-system-headers" ;;
  1328. esac
  1329. CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith"
  1330. CFLAGS="$CFLAGS -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings"
  1331. CFLAGS="$CFLAGS -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2"
  1332. CFLAGS="$CFLAGS -Wwrite-strings -Wmissing-declarations -Wredundant-decls"
  1333. CFLAGS="$CFLAGS -Wnested-externs -Wbad-function-cast -Wswitch-enum"
  1334. if test x$enable_gcc_warnings = xyes; then
  1335. CFLAGS="$CFLAGS -Werror"
  1336. fi
  1337. # Disabled, so we can use mallinfo(): -Waggregate-return
  1338. if test x$have_gcc4 = xyes ; then
  1339. # These warnings break gcc 3.3.5 and work on gcc 4.0.2
  1340. CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wold-style-definition"
  1341. fi
  1342. if test x$have_gcc42 = xyes ; then
  1343. # These warnings break gcc 4.0.2 and work on gcc 4.2
  1344. # XXXX020 See if any of these work with earlier versions.
  1345. CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wstrict-overflow=1"
  1346. # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
  1347. fi
  1348. if test x$have_gcc42 = xyes && test x$have_clang = xno; then
  1349. # These warnings break gcc 4.0.2 and clang, but work on gcc 4.2
  1350. CFLAGS="$CFLAGS -Wnormalized=id -Woverride-init"
  1351. fi
  1352. if test x$have_gcc43 = xyes ; then
  1353. # These warnings break gcc 4.2 and work on gcc 4.3
  1354. # XXXX020 See if any of these work with earlier versions.
  1355. CFLAGS="$CFLAGS -Wextra -Warray-bounds"
  1356. fi
  1357. if test x$have_gcc46 = xyes ; then
  1358. # This warning was added in gcc 4.3, but it appears to generate
  1359. # spurious warnings in gcc 4.4. I don't know if it works in 4.5.
  1360. CFLAGS="$CFLAGS -Wlogical-op"
  1361. fi
  1362. if test x$have_shorten64_flag = xyes ; then
  1363. CFLAGS="$CFLAGS -Wshorten-64-to-32"
  1364. fi
  1365. ##This will break the world on some 64-bit architectures
  1366. # CFLAGS="$CFLAGS -Winline"
  1367. fi
  1368. if test "$enable_coverage" = yes && test "$have_clang" = "no"; then
  1369. case "$host_os" in
  1370. darwin*)
  1371. AC_MSG_WARN([Tried to enable coverage on OSX without using the clang compiler. This might not work! If coverage fails, use CC=clang when configuring with --enable-profiling.])
  1372. esac
  1373. fi
  1374. CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
  1375. AC_CONFIG_FILES([
  1376. Doxyfile
  1377. Makefile
  1378. contrib/dist/suse/tor.sh
  1379. contrib/operator-tools/tor.logrotate
  1380. contrib/dist/tor.sh
  1381. contrib/dist/torctl
  1382. contrib/dist/tor.service
  1383. src/config/torrc.sample
  1384. src/config/torrc.minimal
  1385. ])
  1386. if test x$asciidoc = xtrue && test "$ASCIIDOC" = "none" ; then
  1387. regular_mans="doc/tor doc/tor-gencert doc/tor-resolve doc/torify"
  1388. for file in $regular_mans ; do
  1389. if ! [[ -f "$srcdir/$file.1.in" ]] || ! [[ -f "$srcdir/$file.html.in" ]] ; then
  1390. echo "==================================";
  1391. echo;
  1392. echo "Building Tor has failed since manpages cannot be built.";
  1393. echo;
  1394. echo "You need asciidoc installed to be able to build the manpages.";
  1395. echo "To build without manpages, use the --disable-asciidoc argument";
  1396. echo "when calling configure.";
  1397. echo;
  1398. echo "==================================";
  1399. exit 1;
  1400. fi
  1401. done
  1402. fi
  1403. AC_OUTPUT
  1404. if test -x /usr/bin/perl && test -x ./scripts/maint/updateVersions.pl ; then
  1405. ./scripts/maint/updateVersions.pl
  1406. fi