configure.in 30.3 KB
Newer Older
Roger Dingledine's avatar
Roger Dingledine committed
1
dnl Copyright (c) 2001-2004, Roger Dingledine
2
3
dnl Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson
dnl Copyright (c) 2007-2008, The Tor Project, Inc.
Nick Mathewson's avatar
Nick Mathewson committed
4
dnl See LICENSE for licensing information
5
6

AC_INIT
7
AM_INIT_AUTOMAKE(tor, 0.2.3.0-alpha-dev)
8
AM_CONFIG_HEADER(orconfig.h)
9

10
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

18
19
# Not a no-op; we want to make sure that CPPFLAGS is set before we use
# the += operator on it in src/or/Makefile.am
20
CPPFLAGS="$CPPFLAGS -I\${top_srcdir}/src/common"
21

22
23
24
#XXXX020 We should make these enabled or not, before 0.2.0.x-final
AC_ARG_ENABLE(buf-freelists,
   AS_HELP_STRING(--disable-buf-freelists, disable freelists for buffer RAM))
25
26
AC_ARG_ENABLE(openbsd-malloc,
   AS_HELP_STRING(--enable-openbsd-malloc, Use malloc code from openbsd.  Linux only))
27
28
AC_ARG_ENABLE(instrument-downloads,
   AS_HELP_STRING(--enable-instrument-downloads, Instrument downloads of directory resources etc.))
29
30
31
32
AC_ARG_ENABLE(static-openssl,
   AS_HELP_STRING(--enable-static-openssl, Link against a static openssl library. Requires --with-openssl-dir))
AC_ARG_ENABLE(static-libevent,
   AS_HELP_STRING(--enable-static-libevent, Link against a static libevent library. Requires --with-libevent-dir))
33
34
AC_ARG_ENABLE(static-zlib,
   AS_HELP_STRING(--enable-static-zlib, Link against a static zlib library. Requires --with-zlib-dir))
35

36
37
38
39
if test x$enable_buf_freelists != xno; then
  AC_DEFINE(ENABLE_BUF_FREELISTS, 1,
            [Defined if we try to use freelists for buffer RAM chunks])
fi
40
AM_CONDITIONAL(USE_OPENBSD_MALLOC, test x$enable_openbsd_malloc = xyes)
41
if test x$enable_instrument_downloads = xyes; then
42
43
44
  AC_DEFINE(INSTRUMENT_DOWNLOADS, 1,
            [Defined if we want to keep track of how much of each kind of resource we download.])
fi
45

46
AC_ARG_ENABLE(transparent,
47
     AS_HELP_STRING(--disable-transparent, disable transparent proxy support),
48
49
50
51
52
53
     [case "${enableval}" in
        yes) transparent=true ;;
        no)  transparent=false ;;
        *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
      esac], [transparent=true])

54
55
56
57
58
59
60
61
62
AC_ARG_ENABLE(asciidoc,
     AS_HELP_STRING(--disable-asciidoc, don't use asciidoc (disables building of manpages)),
     [case "${enableval}" in
        yes) asciidoc=true ;;
        no)  asciidoc=false ;;
        *) AC_MSG_ERROR(bad value for --disable-asciidoc) ;;
      esac], [asciidoc=true])


Nick Mathewson's avatar
Nick Mathewson committed
63
AC_ARG_ENABLE(threads,
64
     AS_HELP_STRING(--disable-threads, disable multi-threading support))
Nick Mathewson's avatar
Nick Mathewson committed
65
66

if test x$enable_threads = x; then
67
   case $host in
68
69
70
71
72
    *-*-solaris* )
     # Don't try multithreading on solaris -- cpuworkers seem to lock.
     AC_MSG_NOTICE([You are running Solaris; Sometimes threading makes
cpu workers lock up here, so I will disable threads.])
     enable_threads="no";;
Nick Mathewson's avatar
Nick Mathewson committed
73
74
75
76
77
    *)
     enable_threads="yes";;
   esac
fi

78
if test "$enable_threads" = "yes"; then
Nick Mathewson's avatar
Nick Mathewson committed
79
80
81
  AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
fi

82
83
84
85
86
87
case $host in
   *-*-solaris* )
     AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
     ;;
esac

88
AC_ARG_ENABLE(gcc-warnings,
89
     AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
90
91
AC_ARG_ENABLE(gcc-warnings-advisory,
     AS_HELP_STRING(--enable-gcc-warnings-advisory, [enable verbose warnings, excluding -Werror]))
92

93
94
95
96
97
98
99
100
dnl Adam shostack suggests the following for Windows:
dnl -D_FORTIFY_SOURCE=2 -fstack-protector-all
dnl Others suggest '/gs /safeseh /nxcompat /dynamicbase' for non-gcc on Windows
dnl This requires that we use gcc and that we add -O2 to the CFLAGS.
AC_ARG_ENABLE(gcc-hardening,
     AS_HELP_STRING(--enable-gcc-hardening, enable compiler security checks),
[if test x$enableval = xyes; then
    CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector-all"
Linus Nordberg's avatar
Linus Nordberg committed
101
102
103
    CFLAGS="$CFLAGS -fwrapv -fPIE -Wstack-protector -Wformat -Wformat-security"
    CFLAGS="$CFLAGS -Wpointer-sign"
    LDFLAGS="$LDFLAGS -pie"
104
105
106
107
108
109
110
fi])

dnl Linker hardening options
dnl Currently these options are ELF specific - you can't use this with MacOSX
AC_ARG_ENABLE(linker-hardening,
        AS_HELP_STRING(--enable-linker-hardening, enable linker security fixups),
[if test x$enableval = xyes; then
Linus Nordberg's avatar
Linus Nordberg committed
111
    LDFLAGS="$LDFLAGS -z relro -z now"
112
113
fi])

114
115
116
117
118
119
120
AC_ARG_ENABLE(local-appdata,
   AS_HELP_STRING(--enable-local-appdata, default to host local application data paths on Windows))
if test "$enable_local_appdata" = "yes"; then
  AC_DEFINE(ENABLE_LOCAL_APPDATA, 1,
            [Defined if we default to host local appdata paths on Windows])
fi

121
122
123
AC_ARG_ENABLE(bufferevents,
     AS_HELP_STRING(--enable-bufferevents, use Libevent's buffered IO.))

124
AC_PROG_CC
125
AC_PROG_CPP
126
127
AC_PROG_MAKE_SET
AC_PROG_RANLIB
128
129
130

dnl autoconf 2.59 appears not to support AC_PROG_SED
AC_CHECK_PROG([SED],[sed],[sed],[/bin/false])
131

132
133
134
dnl check for asciidoc and a2x
AC_PATH_PROG([ASCIIDOC], [asciidoc], none)
AC_PATH_PROG([A2X], [a2x], none)
135
136

AM_CONDITIONAL(USE_ASCIIDOC, test x$asciidoc = xtrue)
137

138
139
AC_PATH_PROG([SHA1SUM], [sha1sum], none)
AC_PATH_PROG([OPENSSL], [openssl], none)
140

141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
TORUSER=_tor
AC_ARG_WITH(tor-user,
        [  --with-tor-user=NAME    Specify username for tor daemon ],
        [
           TORUSER=$withval
        ]
)
AC_SUBST(TORUSER)

TORGROUP=_tor
AC_ARG_WITH(tor-group,
        [  --with-tor-group=NAME   Specify group name for tor daemon ],
        [
           TORGROUP=$withval
        ]
)
AC_SUBST(TORGROUP)

159
160
161

dnl If WIN32 is defined and non-zero, we are building for win32
AC_MSG_CHECKING([for win32])
162
163
AC_RUN_IFELSE([
int main(int c, char **v) {
164
165
166
167
168
169
170
171
172
173
174
#ifdef WIN32
#if WIN32
  return 0;
#else
  return 1;
#endif
#else
  return 2;
#endif
}],
bwin32=true; AC_MSG_RESULT([yes]),
175
176
bwin32=false; AC_MSG_RESULT([no]),
bwin32=cross; AC_MSG_RESULT([cross])
177
178
)

179
if test "$bwin32" = cross; then
180
181
182
183
184
185
186
187
188
189
190
191
192
AC_MSG_CHECKING([for win32 (cross)])
AC_COMPILE_IFELSE([
#ifdef WIN32
int main(int c, char **v) {return 0;}
#else
#error
int main(int c, char **v) {return x(y);}
#endif
],
bwin32=true; AC_MSG_RESULT([yes]),
bwin32=false; AC_MSG_RESULT([no]))
fi

193
if test "$bwin32" = true; then
194
195
AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
fi
196
AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
197

198
199
dnl Enable C99 when compiling with MIPSpro
AC_MSG_CHECKING([for MIPSpro compiler])
200
AC_COMPILE_IFELSE(AC_LANG_PROGRAM(, [
201
202
203
204
#if (defined(__sgi) && defined(_COMPILER_VERSION))
#error
  return x(y);
#endif
205
206
207
]),
bmipspro=false; AC_MSG_RESULT(no),
bmipspro=true; AC_MSG_RESULT(yes))
208

209
if test "$bmipspro" = true; then
210
211
212
  CFLAGS="$CFLAGS -c99"
fi

213
214
AC_C_BIGENDIAN

215
AC_SEARCH_LIBS(socket, [socket])
216
AC_SEARCH_LIBS(gethostbyname, [nsl])
217
AC_SEARCH_LIBS(dlopen, [dl])
218
AC_SEARCH_LIBS(inet_aton, [resolv])
219

220
if test "$enable_threads" = "yes"; then
221
222
223
  AC_SEARCH_LIBS(pthread_create, [pthread])
  AC_SEARCH_LIBS(pthread_detach, [pthread])
fi
224

225
226
227
228
dnl -------------------------------------------------------------------
dnl Check for functions before libevent, since libevent-1.2 apparently
dnl exports strlcpy without defining it in a header.

229
AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit strlcat strlcpy strtoull getaddrinfo localtime_r gmtime_r memmem strtok_r flock prctl vasprintf sysconf)
230
231
232
233
234
235
236
237
238
239
240
241

using_custom_malloc=no
if test x$enable_openbsd_malloc = xyes ; then
   AC_DEFINE(HAVE_MALLOC_GOOD_SIZE, 1, [Defined if we have the malloc_good_size function])
   using_custom_malloc=yes
fi
if test x$tcmalloc = xyes ; then
   using_custom_malloc=yes
fi
if test $using_custom_malloc = no ; then
   AC_CHECK_FUNCS(mallinfo malloc_good_size malloc_usable_size)
fi
242

243
if test "$enable_threads" = "yes"; then
244
245
246
247
  AC_CHECK_HEADERS(pthread.h)
  AC_CHECK_FUNCS(pthread_create)
fi

248
dnl ------------------------------------------------------
249
dnl Where do you live, libevent?  And how do we call you?
250

251
if test "$bwin32" = true; then
252
253
254
  TOR_LIB_WS32=-lws2_32
  # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  # think it's actually necessary.
255
  TOR_LIB_GDI=-lgdi32
Nick Mathewson's avatar
   
Nick Mathewson committed
256
else
257
258
  TOR_LIB_WS32=
  TOR_LIB_GDI=
Nick Mathewson's avatar
   
Nick Mathewson committed
259
fi
260
261
AC_SUBST(TOR_LIB_WS32)
AC_SUBST(TOR_LIB_GDI)
Nick Mathewson's avatar
   
Nick Mathewson committed
262

263
264
265
266
dnl We need to do this before we try our disgusting hack below.
AC_CHECK_HEADERS([sys/types.h])

dnl This is a disgusting hack so we safely include older libevent headers.
267
268
269
270
271
AC_CHECK_TYPE(u_int64_t, unsigned long long)
AC_CHECK_TYPE(u_int32_t, unsigned long)
AC_CHECK_TYPE(u_int16_t, unsigned short)
AC_CHECK_TYPE(u_int8_t, unsigned char)

272
tor_libevent_pkg_redhat="libevent"
273
tor_libevent_pkg_debian="libevent-dev"
274
275
276
tor_libevent_devpkg_redhat="libevent-devel"
tor_libevent_devpkg_debian="libevent-dev"

277
TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $TOR_LIB_WS32], [
278
279
280
#ifdef WIN32
#include <winsock2.h>
#endif
281
#include <stdlib.h>
282
#include <sys/time.h>
Roger Dingledine's avatar
Roger Dingledine committed
283
#include <sys/types.h>
284
285
286
287
288
#include <event.h>], [
#ifdef WIN32
#include <winsock2.h>
#endif
void exit(int); void *event_init(void);],
289
290
    [
#ifdef WIN32
291
{WSADATA d; WSAStartup(0x101,&d); }
292
293
294
#endif
event_init(); exit(0);
], [--with-libevent-dir], [/opt/libevent])
295

296
dnl Now check for particular libevent functions.
297
298
save_LIBS="$LIBS"
save_LDFLAGS="$LDFLAGS"
299
save_CPPFLAGS="$CPPFLAGS"
300
LIBS="-levent $TOR_LIB_WS32 $LIBS"
301
LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
302
CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
303
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)
304
305
306
307
AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
[#include <event.h>
])

308
AC_CHECK_HEADERS(event2/event.h event2/dns.h event2/bufferevent_ssl.h)
309

310
311
LIBS="$save_LIBS"
LDFLAGS="$save_LDFLAGS"
312
CPPFLAGS="$save_CPPFLAGS"
313

314

315
316
AM_CONDITIONAL(USE_EXTERNAL_EVDNS, test x$ac_cv_header_event2_dns_h = xyes)

317
318
319
320
321
322
323
324
325
326
327
if test "$enable_static_libevent" = "yes"; then
   if test "$tor_cv_library_libevent_dir" = "(system)"; then
     AC_MSG_ERROR("You must specify an explicit --with-libevent-dir=x option when using --enable-static-libevent")
   else
     TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent.a"
   fi
else
     TOR_LIBEVENT_LIBS="-levent"
fi
AC_SUBST(TOR_LIBEVENT_LIBS)

328
329
dnl This isn't the best test for Libevent 2.0.3-alpha.  Once it's released,
dnl we can do much better.
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
if test "$enable_bufferevents" = "yes" ; then
  if test "$ac_cv_header_event2_bufferevent_ssl_h" != "yes" ; then
    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 2.0.7-rc or later, and you don't seem to even have Libevent 2.0.3-alpha.])
  else

    CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent"

    # Check for the right version.  First see if version detection works.
    AC_MSG_CHECKING([whether we can detect the Libevent version])
    AC_COMPILE_IFELSE([
#include <event2/event.h>
#if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 10
#error
int x = y(zz);
#else
int x = 1;
#endif
  ], [event_version_number_works=yes; AC_MSG_RESULT([yes]) ],
     [event_version_number_works=no;  AC_MSG_RESULT([no])])
    if test "$event_version_number_works" != 'yes'; then
      AC_MSG_WARN([Version detection on Libevent seems broken.  Your Libevent installation is probably screwed up or very old.])
    else
      AC_MSG_CHECKING([whether Libevent is new enough for bufferevents])
      AC_COMPILE_IFELSE([
#include <event2/event.h>
#if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 0x02000700
#error
int x = y(zz);
#else
int x = 1;
#endif
   ], [ AC_MSG_RESULT([yes]) ],
      [ AC_MSG_RESULT([no])
        AC_MSG_ERROR([Libevent does not seem new enough to support bufferevents.  We require 2.0.7-rc or later]) ] )
    fi
  fi
366
367
fi

368
369
370
371
LIBS="$save_LIBS"
LDFLAGS="$save_LDFLAGS"
CPPFLAGS="$save_CPPFLAGS"

372
373
374
375
376
AM_CONDITIONAL(USE_BUFFEREVENTS, test "$enable_bufferevents" = "yes")
if test "$enable_bufferevents" = "yes"; then
   AC_DEFINE(USE_BUFFEREVENTS, 1, [Defined if we're going to use Libevent's buffered IO API])
fi

377
dnl ------------------------------------------------------
378
dnl Where do you live, openssl?  And how do we call you?
379

380
381
382
383
384
tor_openssl_pkg_redhat="openssl"
tor_openssl_pkg_debian="libssl"
tor_openssl_devpkg_redhat="openssl-devel"
tor_openssl_devpkg_debian="libssl-dev"

385
386
387
388
389
390
391
392
393
ALT_openssl_WITHVAL=""
AC_ARG_WITH(ssl-dir,
  [  --with-ssl-dir=PATH    Obsolete alias for --with-openssl-dir ],
  [
      if test "x$withval" != xno && test "x$withval" != "x" ; then
         ALT_openssl_WITHVAL="$withval"
      fi
  ])

394
TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
395
396
    [#include <openssl/rand.h>],
    [void RAND_add(const void *buf, int num, double entropy);],
397
    [RAND_add((void*)0,0,0); exit(0);], [],
398
    [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
399

400
401
dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()

402
403
404
405
406
echo "tor_cv_library_openssl_dir is $tor_cv_library_openssl_dir"
if test "$enable_static_openssl" = "yes"; then
   if test "$tor_cv_library_openssl_dir" = "(system)"; then
     AC_MSG_ERROR("You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl")
   else
407
     TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a"
408
409
   fi
else
410
     TOR_OPENSSL_LIBS="-lssl -lcrypto"
411
412
413
fi
AC_SUBST(TOR_OPENSSL_LIBS)

414
415
416
417
418
419
420
421
422
423
424
425
426
427
dnl ------------------------------------------------------
dnl Where do you live, zlib?  And how do we call you?

tor_openssl_pkg_redhat="zlib"
tor_openssl_pkg_debian="zlib1g"
tor_openssl_devpkg_redhat="zlib-devel"
tor_openssl_devpkg_debian="zlib1g-dev"

TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
    [#include <zlib.h>],
    [const char * zlibVersion(void);],
    [zlibVersion(); exit(0);], [--with-zlib-dir],
    [/opt/zlib])

428
429
430
431
432
433
434
435
436
437
438
439
440
if test "$enable_static_zlib" = "yes"; then
   if test "$tor_cv_library_zlib_dir" = "(system)"; then
     AC_MSG_ERROR("You must specify an explicit --with-zlib-dir=x option when
 using --enable-static-zlib")
   else
     TOR_ZLIB_LIBS="$TOR_LIBDIR_zlib/libz.a"
     echo "$TOR_LIBDIR_zlib/libz.a"
   fi
else
     TOR_ZLIB_LIBS="-lz"
fi
AC_SUBST(TOR_ZLIB_LIBS)

Roger Dingledine's avatar
Roger Dingledine committed
441
dnl Make sure to enable support for large off_t if available.
442

443
444
AC_SYS_LARGEFILE

445
AC_CHECK_HEADERS(unistd.h string.h signal.h sys/stat.h sys/types.h fcntl.h sys/fcntl.h sys/time.h errno.h assert.h time.h, , 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.))
446

447
AC_CHECK_HEADERS(netdb.h sys/ioctl.h sys/socket.h arpa/inet.h netinet/in.h pwd.h grp.h sys/un.h)
448

449
450
dnl These headers are not essential

451
AC_CHECK_HEADERS(stdint.h sys/types.h inttypes.h sys/param.h sys/wait.h limits.h sys/limits.h netinet/in.h arpa/inet.h machine/limits.h syslog.h sys/time.h sys/resource.h inttypes.h utime.h sys/utime.h sys/mman.h netinet/in6.h malloc.h sys/syslimits.h malloc/malloc.h linux/types.h sys/file.h malloc_np.h sys/prctl.h)
452

453
454
455
456
457
458
459
460
TOR_CHECK_PROTOTYPE(malloc_good_size, HAVE_MALLOC_GOOD_SIZE_PROTOTYPE,
[#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#ifdef HAVE_MALLOC_MALLOC_H
#include <malloc/malloc.h>
#endif])

461
AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
462
463
464
465
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
466
467
#include <sys/socket.h>
#endif])
468
AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
469
470
471
472
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
473
#include <sys/socket.h>
474
475
476
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
477
#endif])
478
AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
479
        linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
480
481
482
483
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
484
#include <sys/socket.h>
485
#endif
486
487
488
489
490
491
492
493
494
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#ifdef HAVE_LINUX_TYPES_H
#include <linux/types.h>
#endif
#ifdef HAVE_NETINET_IN6_H
#include <netinet/in6.h>
#endif
495
496
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
497
#endif])
498
499
500

if test x$transparent = xtrue ; then
   transparent_ok=0
501
   if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
502
503
504
505
506
     transparent_ok=1
   fi
   if test x$linux_netfilter_ipv4 = x1 ; then
     transparent_ok=1
   fi
507
   if test x$transparent_ok = x1 ; then
508
509
510
511
512
513
514
515
516
517
     AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
     case $host in
       *-*-openbsd*)
         AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
     esac
   else
     AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
   fi
fi

518
519
520
521
522
523
524
AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif])
525

526
527
528
dnl In case we aren't given a working stdint.h, we'll need to grow our own.
dnl Watch out.

529
530
531
532
533
534
535
536
AC_CHECK_SIZEOF(int8_t)
AC_CHECK_SIZEOF(int16_t)
AC_CHECK_SIZEOF(int32_t)
AC_CHECK_SIZEOF(int64_t)
AC_CHECK_SIZEOF(uint8_t)
AC_CHECK_SIZEOF(uint16_t)
AC_CHECK_SIZEOF(uint32_t)
AC_CHECK_SIZEOF(uint64_t)
537
538
AC_CHECK_SIZEOF(intptr_t)
AC_CHECK_SIZEOF(uintptr_t)
539

540
dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
541

542
543
544
545
546
547
AC_CHECK_SIZEOF(char)
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(long long)
AC_CHECK_SIZEOF(__int64)
548
AC_CHECK_SIZEOF(void *)
549
AC_CHECK_SIZEOF(time_t)
550
AC_CHECK_SIZEOF(size_t)
551

552
AC_CHECK_TYPES([uint, u_char, ssize_t])
553

554
555
dnl used to include sockaddr_storage, but everybody has that.
AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
556
557
558
559
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
560
561
562
563
564
565
566
#include <netinet/in.h>
#endif
#ifdef HAVE_NETINET_IN6_H
#include <netinet/in6.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
567
568
569
570
571
572
573
574
575
576
577
578
579
#endif
#ifdef MS_WINDOWS
#define WIN32_WINNT 0x400
#define _WIN32_WINNT 0x400
#define WIN32_LEAN_AND_MEAN
#if defined(_MSC_VER) && (_MSC_VER < 1300)
#include <winsock.h>
#else
#include <winsock2.h>
#include <ws2tcpip.h>
#endif
#endif
])
580
AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETINET_IN6_H
#include <netinet/in6.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef MS_WINDOWS
#define WIN32_WINNT 0x400
#define _WIN32_WINNT 0x400
#define WIN32_LEAN_AND_MEAN
#if defined(_MSC_VER) && (_MSC_VER < 1300)
#include <winsock.h>
#else
#include <winsock2.h>
#include <ws2tcpip.h>
#endif
#endif
])
605

606
AC_CHECK_TYPES([rlim_t], , ,
607
608
609
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
610
611
612
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
613
#ifdef HAVE_SYS_RESOURCE_H
614
615
616
617
#include <sys/resource.h>
#endif
])

618
AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
619
AC_RUN_IFELSE(AC_LANG_SOURCE([
620
621
622
623
624
625
626
627
628
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef HAVE_TIME_H
#include <time.h>
#endif
629
int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }]),
630
  tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes, tor_cv_time_t_signed=cross)
631
])
632
633

if test "$tor_cv_time_t_signed" = cross; then
634
635
  AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
fi
636

637
if test "$tor_cv_time_t_signed" != no; then
638
639
640
641
  AC_DEFINE([TIME_T_IS_SIGNED], 1,
            [Define to 1 iff time_t is signed])
fi

642
643
644
645
646
AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])
647

648
649
650
651
# We want to make sure that we _don't_ have a cell_t defined, like IRIX does.

AC_CHECK_SIZEOF(cell_t)

652
653
654
655
# Now make sure that NULL can be represented as zero bytes.
AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
[AC_RUN_IFELSE([AC_LANG_SOURCE(
[[#include <stdlib.h>
656
#include <string.h>
657
658
659
660
#include <stdio.h>
#ifdef HAVE_STDDEF_H
#include <stddef.h>
#endif
661
int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
662
return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
663
664
665
666
       [tor_cv_null_is_zero=yes],
       [tor_cv_null_is_zero=no],
       [tor_cv_null_is_zero=cross])])

667
if test "$tor_cv_null_is_zero" = cross ; then
668
669
670
671
  # Cross-compiling; let's hope that the target isn't raving mad.
  AC_MSG_NOTICE([Cross-compiling: we'll assume that NULL is represented as a sequence of 0-valued bytes.])
fi

672
if test "$tor_cv_null_is_zero" != no; then
673
674
675
676
  AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
            [Define to 1 iff memset(0) sets pointers to NULL])
fi

677
678
679
680
681
682
683
684
685
686
687
688
689
690
# And what happens when we malloc zero?
AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
[AC_RUN_IFELSE([AC_LANG_SOURCE(
[[#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#ifdef HAVE_STDDEF_H
#include <stddef.h>
#endif
int main () { return malloc(0)?0:1; }]])],
       [tor_cv_malloc_zero_works=yes],
       [tor_cv_malloc_zero_works=no],
       [tor_cv_malloc_zero_works=cross])])

691
if test "$tor_cv_malloc_zero_works" = cross; then
692
693
694
695
  # Cross-compiling; let's hope that the target isn't raving mad.
  AC_MSG_NOTICE([Cross-compiling: we'll assume that we need to check malloc() arguments for 0.])
fi

696
if test "$tor_cv_malloc_zero_works" = yes; then
697
698
699
700
  AC_DEFINE([MALLOC_ZERO_WORKS], 1,
            [Define to 1 iff malloc(0) returns a pointer])
fi

701
702
703
704
705
706
707
708
709
# whether we seem to be in a 2s-complement world.
AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
[AC_RUN_IFELSE([AC_LANG_SOURCE(
[[int main () { int problem = ((-99) != (~99)+1);
return problem ? 1 : 0; }]])],
       [tor_cv_twos_complement=yes],
       [tor_cv_twos_complement=no],
       [tor_cv_twos_complement=cross])])

710
if test "$tor_cv_twos_complement" = cross ; then
711
  # Cross-compiling; let's hope that the target isn't raving mad.
712
  AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
713
714
fi

715
if test "$tor_cv_twos_complement" != no ; then
716
717
718
719
  AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
            [Define to 1 iff we represent negative integers with two's complement])
fi

720
# Whether we should use the dmalloc memory allocation debugging library.
Roger Dingledine's avatar
Roger Dingledine committed
721
AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
722
AC_ARG_WITH(dmalloc,
723
[  --with-dmalloc          Use debug memory allocation library. ],
724
725
726
727
728
729
730
731
732
733
[if [[ "$withval" = "yes" ]]; then
  dmalloc=1
  AC_MSG_RESULT(yes)
else
  dmalloc=1
  AC_MSG_RESULT(no)
fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
)

if [[ $dmalloc -eq 1 ]]; then
Peter Palfrader's avatar
Peter Palfrader committed
734
  AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
735
  AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
736
737
  AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
738
  AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
739
740
fi

741
742
743
744
745
746
747
748
AC_ARG_WITH(tcmalloc,
[  --with-tcmalloc         Use tcmalloc memory allocation library. ],
[ tcmalloc=yes ], [ tcmalloc=no ])

if test x$tcmalloc = xyes ; then
   LDFLAGS="-ltcmalloc $LDFLAGS"
fi

749
# By default, we're going to assume we don't have mlockall()
Nick Mathewson's avatar
Nick Mathewson committed
750
751
752
# bionic and other platforms have various broken mlockall subsystems.
# Some systems don't have a working mlockall, some aren't linkable,
# and some have it but don't declare it.
753
AC_CHECK_FUNCS(mlockall)
Nick Mathewson's avatar
Nick Mathewson committed
754
755
756
757
AC_CHECK_DECLS([mlockall], , , [
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif])
758

759
760
761
762
763
764
765
# Allow user to specify an alternate syslog facility
AC_ARG_WITH(syslog-facility,
[  --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
syslog_facility="$withval", syslog_facility="LOG_DAEMON")
AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
AC_SUBST(LOGFACILITY)

766
767
768
# Check if we have getresuid and getresgid
AC_CHECK_FUNCS(getresuid getresgid)

769
770
771
772
773
774
775
776
777
# Check for gethostbyname_r in all its glorious incompatible versions.
#   (This logic is based on that in Python's configure.in)
AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
  [Define this if you have any gethostbyname_r()])

AC_CHECK_FUNC(gethostbyname_r, [
  AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
  OLD_CFLAGS=$CFLAGS
  CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
778
  AC_COMPILE_IFELSE(AC_LANG_PROGRAM([
779
#include <netdb.h>
780
  ], [[
781
782
783
784
    char *cp1, *cp2;
    struct hostent *h1, *h2;
    int i1, i2;
    (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
785
  ]]),[
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
    AC_DEFINE(HAVE_GETHOSTBYNAME_R)
    AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
     [Define this if gethostbyname_r takes 6 arguments])
    AC_MSG_RESULT(6)
  ], [
    AC_TRY_COMPILE([
#include <netdb.h>
    ], [
      char *cp1, *cp2;
      struct hostent *h1;
      int i1, i2;
      (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
    ], [
      AC_DEFINE(HAVE_GETHOSTBYNAME_R)
      AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
        [Define this if gethostbyname_r takes 5 arguments])
      AC_MSG_RESULT(5)
   ], [
      AC_TRY_COMPILE([
#include <netdb.h>
     ], [
       char *cp1;
       struct hostent *h1;
       struct hostent_data hd;
       (void) gethostbyname_r(cp1,h1,&hd);
     ], [
       AC_DEFINE(HAVE_GETHOSTBYNAME_R)
       AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
         [Define this if gethostbyname_r takes 3 arguments])
       AC_MSG_RESULT(3)
     ], [
       AC_MSG_RESULT(0)
     ])
  ])
 ])
 CFLAGS=$OLD_CFLAGS
])

824
AC_CACHE_CHECK([whether the C compiler supports __func__],
825
  tor_cv_have_func_macro,
826
827
828
  AC_COMPILE_IFELSE([
#include <stdio.h>
int main(int c, char **v) { puts(__func__); }],
829
830
  tor_cv_have_func_macro=yes,
  tor_cv_have_func_macro=no))
831
832

AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
833
  tor_cv_have_FUNC_macro,
834
835
836
  AC_COMPILE_IFELSE([
#include <stdio.h>
int main(int c, char **v) { puts(__FUNC__); }],
837
838
  tor_cv_have_FUNC_macro=yes,
  tor_cv_have_FUNC_macro=no))
839
840

AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
841
  tor_cv_have_FUNCTION_macro,
842
843
844
  AC_COMPILE_IFELSE([
#include <stdio.h>
int main(int c, char **v) { puts(__FUNCTION__); }],
845
846
  tor_cv_have_FUNCTION_macro=yes,
  tor_cv_have_FUNCTION_macro=no))
847

848
if test "$tor_cv_have_func_macro" = 'yes'; then
849
850
851
  AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
fi

852
if test "$tor_cv_have_FUNC_macro" = 'yes'; then
853
854
855
  AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
fi

856
if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
857
858
859
860
  AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
           [Defined if the compiler supports __FUNCTION__])
fi

861
862
863
864
865
866
867
868
869
870
871
872
# $prefix stores the value of the --prefix command line option, or
# NONE if the option wasn't set.  In the case that it wasn't set, make
# it be the default, so that we can use it to expand directories now.
if test "x$prefix" = "xNONE"; then
  prefix=$ac_default_prefix
fi

# and similarly for $exec_prefix
if test "x$exec_prefix" = "xNONE"; then
  exec_prefix=$prefix
fi

873
874
875
if test "x$CONFDIR" = "x"; then
  CONFDIR=`eval echo $sysconfdir/tor`
fi
876
AC_SUBST(CONFDIR)
877
AH_TEMPLATE([CONFDIR],[tor's configuration directory])
878
879
AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")

880
881
882
883
884
BINDIR=`eval echo $bindir`
AC_SUBST(BINDIR)
LOCALSTATEDIR=`eval echo $localstatedir`
AC_SUBST(LOCALSTATEDIR)

885
886
# Set CFLAGS _after_ all the above checks, since our warnings are stricter
# than autoconf's macros like.
887
if test "$GCC" = yes; then
888
  CFLAGS="$CFLAGS -Wall -g -O2"
889
890
891
  # Disable GCC's strict aliasing checks.  They are an hours-to-debug
  # accident waiting to happen.
  CFLAGS="$CFLAGS -fno-strict-aliasing"
892
893
else
  CFLAGS="$CFLAGS -g -O"
894
  enable_gcc_warnings=no
895
  enable_gcc_warnings_advisory=no
896
fi
897

898
# Add some more warnings which we use in development but not in the
899
# released versions.  (Some relevant gcc versions can't handle these.)
900
if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
901

902
  AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
903
904
#if !defined(__GNUC__) || (__GNUC__ < 4)
#error
905
#endif]), have_gcc4=yes, have_gcc4=no)
906

907
  AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
908
#if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
909
910
911
#error
#endif]), have_gcc42=yes, have_gcc42=no)

912
913
914
915
916
  AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
#if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
#error
#endif]), have_gcc43=yes, have_gcc43=no)

917
918
919
920
921
922
  save_CFLAGS="$CFLAGS"
  CFLAGS="$CFLAGS -Wshorten-64-to-32"
  AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], []), have_shorten64_flag=yes,
                    have_shorten64_flag=no)
  CFLAGS="$save_CFLAGS"

923
924
925
926
927
928
929
930
931
  case $host in
    *-*-openbsd*)
      # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default.
      # That's fine, except that the headers don't pass -Wredundant-decls.
      # Therefore, let's disable -Wsystem-headers when we're building
      # with maximal warnings on OpenBSD.
      CFLAGS="$CFLAGS -Wno-system-headers" ;;
  esac

932
933
934
935
  CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Wwrite-strings -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wbad-function-cast -Wswitch-enum"
  if test x$enable_gcc_warnings = xyes; then
    CFLAGS="$CFLAGS -Werror"
  fi
936

937
  # Disabled, so we can use mallinfo(): -Waggregate-return
938

939
  if test x$have_gcc4 = xyes ; then
940
941
942
    # These warnings break gcc 3.3.5 and work on gcc 4.0.2
    CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  fi
943

944
945
946
947
  if test x$have_gcc42 = xyes ; then 
    # These warnings break gcc 4.0.2 and work on gcc 4.2
    # XXXX020 Use -fstack-protector.
    # XXXX020 See if any of these work with earlier versions.
948
    CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wnormalized=id -Woverride-init -Wstrict-overflow=1 --param ssp-buffer-size=1"
949
950
951
952
953
954
955
    # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
  fi

  if test x$have_gcc43 = xyes ; then 
    # These warnings break gcc 4.2 and work on gcc 4.3
    # XXXX020 See if any of these work with earlier versions.
    CFLAGS="$CFLAGS -Wextra -Warray-bounds"
956
957
  fi

958
959
960
961
  if test x$have_shorten64_flag = xyes ; then
    CFLAGS="$CFLAGS -Wshorten-64-to-32"
  fi

962
963
##This will break the world on some 64-bit architectures
# CFLAGS="$CFLAGS -Winline"
964
fi
965

966
967


968
969
CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"

Sebastian Hahn's avatar
Sebastian Hahn committed
970
AC_CONFIG_FILES([Makefile tor.spec Doxyfile contrib/tor.sh contrib/torctl contrib/torify contrib/tor.logrotate contrib/Makefile contrib/osx/Makefile contrib/osx/TorBundleDesc.plist contrib/osx/TorBundleInfo.plist contrib/osx/TorDesc.plist contrib/osx/TorInfo.plist contrib/osx/TorStartupDesc.plist src/config/torrc.sample src/Makefile doc/Makefile doc/spec/Makefile src/config/Makefile src/common/Makefile src/or/Makefile src/test/Makefile src/win32/Makefile src/tools/Makefile contrib/suse/Makefile contrib/suse/tor.sh])
971
AC_OUTPUT
972
973
974
975
976

if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
  ./contrib/updateVersions.pl
fi