configure.in 24.8 KB
Newer Older
Nick Mathewson's avatar
Nick Mathewson committed
1
dnl $Id$
Roger Dingledine's avatar
Roger Dingledine committed
2
dnl Copyright (c) 2001-2004, Roger Dingledine
3
4
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
5
dnl See LICENSE for licensing information
6
7

AC_INIT
8
AM_INIT_AUTOMAKE(tor, 0.2.1.12-alpha-dev)
9
AM_CONFIG_HEADER(orconfig.h)
10

11
12
AC_CANONICAL_HOST

13
if test -f /etc/redhat-release ; then
14
  if test -f /usr/kerberos/include ; then
15
    CPPFLAGS="$CPPFLAGS -I/usr/kerberos/include"
16
  fi
17
fi
18

19
20
21
22
# 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
CPPFLAGS="$CPPFLAGS -I../common"

23
AC_ARG_ENABLE(debug,
24
 AS_HELP_STRING(--enable-debug, compile with debugging info),
25
[if test x$enableval = xyes; then
26
    CFLAGS="$CFLAGS -g"
27
28
fi])

29
30
31
32
33
34
#XXXX ideally, we should make this into a no-op, and detect whether we're
#compiling for the iphone by using $target.
AC_ARG_ENABLE(iphone,
 AS_HELP_STRING(--enable-iphone, compile with iPhone support),
 [if test x$enableval = xyes ; then
   tor_cv_iphone=true
35
   CFLAGS="$CFLAGS -D__DARWIN_UNIX03 -DIPHONE"
36
37
  fi])

38
39
40
#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))
41
42
AC_ARG_ENABLE(openbsd-malloc,
   AS_HELP_STRING(--enable-openbsd-malloc, Use malloc code from openbsd.  Linux only))
43
44
AC_ARG_ENABLE(instrument-downloads,
   AS_HELP_STRING(--enable-instrument-downloads, Instrument downloads of directory resources etc.))
45

46
47
48
49
if test x$enable_buf_freelists != xno; then
  AC_DEFINE(ENABLE_BUF_FREELISTS, 1,
            [Defined if we try to use freelists for buffer RAM chunks])
fi
50
AM_CONDITIONAL(USE_OPENBSD_MALLOC, test x$enable_openbsd_malloc = xyes)
51
if test x$enable_instrument_downloads = xyes; then
52
53
54
  AC_DEFINE(INSTRUMENT_DOWNLOADS, 1,
            [Defined if we want to keep track of how much of each kind of resource we download.])
fi
55

56
AC_ARG_ENABLE(transparent,
57
     AS_HELP_STRING(--disable-transparent, disable transparent proxy support),
58
59
60
61
62
63
     [case "${enableval}" in
        yes) transparent=true ;;
        no)  transparent=false ;;
        *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
      esac], [transparent=true])

Nick Mathewson's avatar
Nick Mathewson committed
64
AC_ARG_ENABLE(threads,
65
     AS_HELP_STRING(--disable-threads, disable multi-threading support))
Nick Mathewson's avatar
Nick Mathewson committed
66
67

if test x$enable_threads = x; then
68
   case $host in
69
70
71
72
73
    *-*-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
74
75
76
77
78
    *)
     enable_threads="yes";;
   esac
fi

79
if test "$enable_threads" = "yes"; then
Nick Mathewson's avatar
Nick Mathewson committed
80
81
82
  AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
fi

83
84
85
86
87
88
case $host in
   *-*-solaris* )
     AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
     ;;
esac

89
90
91
92
93
94
95
AC_ARG_ENABLE(geoip-stats,
     AS_HELP_STRING(--enable-geoip-stats, enable code for directories to collect per-country statistics))

if test "$enable_geoip_stats" = "yes"; then
  AC_DEFINE(ENABLE_GEOIP_STATS, 1, [Defined if we try to collect per-country statistics])
fi

96
AC_ARG_ENABLE(gcc-warnings,
97
     AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
98

99
100
101
102
103
104
105
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

106
AC_PROG_CC
107
AC_PROG_CPP
108
109
110
AC_PROG_MAKE_SET
AC_PROG_RANLIB

111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
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)

129
130
131

dnl If WIN32 is defined and non-zero, we are building for win32
AC_MSG_CHECKING([for win32])
132
133
AC_RUN_IFELSE([
int main(int c, char **v) {
134
135
136
137
138
139
140
141
142
143
144
#ifdef WIN32
#if WIN32
  return 0;
#else
  return 1;
#endif
#else
  return 2;
#endif
}],
bwin32=true; AC_MSG_RESULT([yes]),
145
146
bwin32=false; AC_MSG_RESULT([no]),
bwin32=cross; AC_MSG_RESULT([cross])
147
148
)

149
if test "$bwin32" = cross; then
150
151
152
153
154
155
156
157
158
159
160
161
162
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

163
if test "$bwin32" = true; then
164
165
AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
fi
166
AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
167

168
169
dnl Enable C99 when compiling with MIPSpro
AC_MSG_CHECKING([for MIPSpro compiler])
170
AC_COMPILE_IFELSE(AC_LANG_PROGRAM(, [
171
172
173
174
#if (defined(__sgi) && defined(_COMPILER_VERSION))
#error
  return x(y);
#endif
175
176
177
]),
bmipspro=false; AC_MSG_RESULT(no),
bmipspro=true; AC_MSG_RESULT(yes))
178

179
if test "$bmipspro" = true; then
180
181
182
  CFLAGS="$CFLAGS -c99"
fi

183
184
AC_C_BIGENDIAN

185
AC_SEARCH_LIBS(socket, [socket])
186
AC_SEARCH_LIBS(gethostbyname, [nsl])
187
AC_SEARCH_LIBS(dlopen, [dl])
188
AC_SEARCH_LIBS(inet_aton, [resolv])
189

190
if test "$enable_threads" = "yes"; then
191
192
193
  AC_SEARCH_LIBS(pthread_create, [pthread])
  AC_SEARCH_LIBS(pthread_detach, [pthread])
fi
194

195
196
197
198
dnl -------------------------------------------------------------------
dnl Check for functions before libevent, since libevent-1.2 apparently
dnl exports strlcpy without defining it in a header.

199
AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit strlcat strlcpy strtoull getaddrinfo localtime_r gmtime_r memmem strtok_r writev readv flock)
200
201
202
203
204
205
206
207
208
209
210
211

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
212

213
if test "$enable_threads" = "yes"; then
214
215
216
217
  AC_CHECK_HEADERS(pthread.h)
  AC_CHECK_FUNCS(pthread_create)
fi

218
dnl ------------------------------------------------------
219
dnl Where do you live, libevent?  And how do we call you?
220

221
if test "$bwin32" = true; then
222
223
224
  TOR_LIB_WS32=-lws2_32
  # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  # think it's actually necessary.
225
  TOR_LIB_GDI=-lgdi32
Nick Mathewson's avatar
   
Nick Mathewson committed
226
else
227
228
  TOR_LIB_WS32=
  TOR_LIB_GDI=
Nick Mathewson's avatar
   
Nick Mathewson committed
229
fi
230
231
AC_SUBST(TOR_LIB_WS32)
AC_SUBST(TOR_LIB_GDI)
Nick Mathewson's avatar
   
Nick Mathewson committed
232

233
234
235
236
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.
237
238
239
240
241
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)

242
tor_libevent_pkg_redhat="libevent"
243
tor_libevent_pkg_debian="libevent-dev"
244
245
246
tor_libevent_devpkg_redhat="libevent-devel"
tor_libevent_devpkg_debian="libevent-dev"

247
TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $TOR_LIB_WS32], [
248
249
250
#ifdef WIN32
#include <winsock2.h>
#endif
251
#include <stdlib.h>
252
#include <sys/time.h>
Roger Dingledine's avatar
Roger Dingledine committed
253
#include <sys/types.h>
254
255
256
257
258
#include <event.h>], [
#ifdef WIN32
#include <winsock2.h>
#endif
void exit(int); void *event_init(void);],
259
260
    [
#ifdef WIN32
261
{WSADATA d; WSAStartup(0x101,&d); }
262
263
264
#endif
event_init(); exit(0);
], [--with-libevent-dir], [/opt/libevent])
265

266
dnl Now check for particular libevent functions.
267
268
save_LIBS="$LIBS"
save_LDFLAGS="$LDFLAGS"
269
save_CPPFLAGS="$CPPFLAGS"
270
LIBS="-levent $TOR_LIB_WS32 $LIBS"
271
LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
272
CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
273
AC_CHECK_FUNCS(event_get_version event_get_method event_set_log_callback)
274
275
276
277
AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
[#include <event.h>
])

278
279
LIBS="$save_LIBS"
LDFLAGS="$save_LDFLAGS"
280
CPPFLAGS="$save_CPPFLAGS"
281

282
dnl ------------------------------------------------------
283
dnl Where do you live, openssl?  And how do we call you?
284

285
286
287
288
289
tor_openssl_pkg_redhat="openssl"
tor_openssl_pkg_debian="libssl"
tor_openssl_devpkg_redhat="openssl-devel"
tor_openssl_devpkg_debian="libssl-dev"

290
291
292
293
294
295
296
297
298
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
  ])

299
TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
300
301
    [#include <openssl/rand.h>],
    [void RAND_add(const void *buf, int num, double entropy);],
302
    [RAND_add((void*)0,0,0); exit(0);], [],
303
    [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
304

305
306
dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()

307
308
309
310
311
312
313
314
315
316
317
318
319
320
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])

Roger Dingledine's avatar
Roger Dingledine committed
321
dnl Make sure to enable support for large off_t if available.
322

323
324
AC_SYS_LARGEFILE

325
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.))
326

327
AC_CHECK_HEADERS(netdb.h sys/ioctl.h sys/socket.h arpa/inet.h netinet/in.h pwd.h grp.h sys/un.h sys/uio.h)
328

329
330
dnl These headers are not essential

331
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)
332

333
334
335
336
337
338
339
340
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])

341
AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
342
343
344
345
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
346
347
#include <sys/socket.h>
#endif])
348
AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
349
350
351
352
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
353
#include <sys/socket.h>
354
355
356
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
357
#endif])
358
AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
359
        linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
360
361
362
363
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
364
#include <sys/socket.h>
365
#endif
366
367
368
369
370
371
372
373
374
#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
375
376
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
377
#endif])
378
379
380

if test x$transparent = xtrue ; then
   transparent_ok=0
381
   if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
382
383
384
385
386
     transparent_ok=1
   fi
   if test x$linux_netfilter_ipv4 = x1 ; then
     transparent_ok=1
   fi
387
   if test x$transparent_ok = x1 ; then
388
389
390
391
392
393
394
395
396
397
     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

398
399
400
401
402
403
404
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])
405

406
407
408
dnl In case we aren't given a working stdint.h, we'll need to grow our own.
dnl Watch out.

409
410
411
412
413
414
415
416
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)
417
418
AC_CHECK_SIZEOF(intptr_t)
AC_CHECK_SIZEOF(uintptr_t)
419

420
dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
421

422
423
424
425
426
427
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)
428
AC_CHECK_SIZEOF(void *)
429
AC_CHECK_SIZEOF(time_t)
430
AC_CHECK_SIZEOF(size_t)
431

432
AC_CHECK_TYPES([uint, u_char, ssize_t])
433

434
435
dnl used to include sockaddr_storage, but everybody has that.
AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
436
437
438
439
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
440
441
442
443
444
445
446
#include <netinet/in.h>
#endif
#ifdef HAVE_NETINET_IN6_H
#include <netinet/in6.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
447
448
449
450
451
452
453
454
455
456
457
458
459
#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
])
460
AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
[#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
])
485

486
AC_CHECK_TYPES([rlim_t], , ,
487
488
489
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
490
491
492
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
493
#ifdef HAVE_SYS_RESOURCE_H
494
495
496
497
#include <sys/resource.h>
#endif
])

498
AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
499
AC_RUN_IFELSE(AC_LANG_SOURCE([
500
501
502
503
504
505
506
507
508
#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
509
int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }]),
510
  tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes, tor_cv_time_t_signed=cross)
511
])
512
513

if test "$tor_cv_time_t_signed" = cross; then
514
515
  AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
fi
516

517
if test "$tor_cv_time_t_signed" != no; then
518
519
520
521
  AC_DEFINE([TIME_T_IS_SIGNED], 1,
            [Define to 1 iff time_t is signed])
fi

522
523
524
525
526
AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])
527

528
529
530
531
# We want to make sure that we _don't_ have a cell_t defined, like IRIX does.

AC_CHECK_SIZEOF(cell_t)

532
533
534
535
# 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>
536
#include <string.h>
537
538
539
540
#include <stdio.h>
#ifdef HAVE_STDDEF_H
#include <stddef.h>
#endif
541
int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
542
return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
543
544
545
546
       [tor_cv_null_is_zero=yes],
       [tor_cv_null_is_zero=no],
       [tor_cv_null_is_zero=cross])])

547
if test "$tor_cv_null_is_zero" = cross ; then
548
549
550
551
  # 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

552
if test "$tor_cv_null_is_zero" != no; then
553
554
555
556
  AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
            [Define to 1 iff memset(0) sets pointers to NULL])
fi

557
558
559
560
561
562
563
564
565
566
567
568
569
570
# 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])])

571
if test "$tor_cv_malloc_zero_works" = cross; then
572
573
574
575
  # 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

576
if test "$tor_cv_malloc_zero_works" = yes; then
577
578
579
580
  AC_DEFINE([MALLOC_ZERO_WORKS], 1,
            [Define to 1 iff malloc(0) returns a pointer])
fi

581
582
583
584
585
586
587
588
589
# 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])])

590
if test "$tor_cv_twos_complement" = cross ; then
591
  # Cross-compiling; let's hope that the target isn't raving mad.
592
  AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
593
594
fi

595
if test "$tor_cv_twos_complement" != no ; then
596
597
598
599
  AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
            [Define to 1 iff we represent negative integers with two's complement])
fi

600
# Whether we should use the dmalloc memory allocation debugging library.
Roger Dingledine's avatar
Roger Dingledine committed
601
AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
602
AC_ARG_WITH(dmalloc,
603
[  --with-dmalloc          Use debug memory allocation library. ],
604
605
606
607
608
609
610
611
612
613
[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
614
  AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
615
  AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
616
617
  AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
618
  AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
619
620
fi

621
622
623
624
625
626
627
628
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

629
630
631
632
633
634
635
# 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)

636
637
638
# Check if we have getresuid and getresgid
AC_CHECK_FUNCS(getresuid getresgid)

639
640
641
642
643
644
645
646
647
# 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 $MY_CFLAGS"
648
  AC_COMPILE_IFELSE(AC_LANG_PROGRAM([
649
#include <netdb.h>
650
  ], [[
651
652
653
654
    char *cp1, *cp2;
    struct hostent *h1, *h2;
    int i1, i2;
    (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
655
  ]]),[
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
    AC_DEFINE(HAVE_GETHOSTBYNAME_R)
    AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
     [Define this if gethostbyname_r takes 6 arguments])
    AC_MSG_RESULT(6)
  ], [
    AC_TRY_COMPILE([
#include <netdb.h>
    ], [
      char *cp1, *cp2;
      struct hostent *h1;
      int i1, i2;
      (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
    ], [
      AC_DEFINE(HAVE_GETHOSTBYNAME_R)
      AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
        [Define this if gethostbyname_r takes 5 arguments])
      AC_MSG_RESULT(5)
   ], [
      AC_TRY_COMPILE([
#include <netdb.h>
     ], [
       char *cp1;
       struct hostent *h1;
       struct hostent_data hd;
       (void) gethostbyname_r(cp1,h1,&hd);
     ], [
       AC_DEFINE(HAVE_GETHOSTBYNAME_R)
       AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
         [Define this if gethostbyname_r takes 3 arguments])
       AC_MSG_RESULT(3)
     ], [
       AC_MSG_RESULT(0)
     ])
  ])
 ])
 CFLAGS=$OLD_CFLAGS
])

694
AC_CACHE_CHECK([whether the C compiler supports __func__],
695
  tor_cv_have_func_macro,
696
697
698
  AC_COMPILE_IFELSE([
#include <stdio.h>
int main(int c, char **v) { puts(__func__); }],
699
700
  tor_cv_have_func_macro=yes,
  tor_cv_have_func_macro=no))
701
702

AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
703
  tor_cv_have_FUNC_macro,
704
705
706
  AC_COMPILE_IFELSE([
#include <stdio.h>
int main(int c, char **v) { puts(__FUNC__); }],
707
708
  tor_cv_have_FUNC_macro=yes,
  tor_cv_have_FUNC_macro=no))
709
710

AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
711
  tor_cv_have_FUNCTION_macro,
712
713
714
  AC_COMPILE_IFELSE([
#include <stdio.h>
int main(int c, char **v) { puts(__FUNCTION__); }],
715
716
  tor_cv_have_FUNCTION_macro=yes,
  tor_cv_have_FUNCTION_macro=no))
717

718
if test "$tor_cv_have_func_macro" = 'yes'; then
719
720
721
  AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
fi

722
if test "$tor_cv_have_FUNC_macro" = 'yes'; then
723
724
725
  AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
fi

726
if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
727
728
729
730
  AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
           [Defined if the compiler supports __FUNCTION__])
fi

731
732
733
734
735
736
737
738
739
740
741
742
# $prefix stores the value of the --prefix command line option, or
# NONE if the option wasn't set.  In the case that it wasn't set, make
# it be the default, so that we can use it to expand directories now.
if test "x$prefix" = "xNONE"; then
  prefix=$ac_default_prefix
fi

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

743
744
745
if test "x$CONFDIR" = "x"; then
  CONFDIR=`eval echo $sysconfdir/tor`
fi
746
AC_SUBST(CONFDIR)
747
AH_TEMPLATE([CONFDIR],[tor's configuration directory])
748
749
AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")

750
751
752
753
754
BINDIR=`eval echo $bindir`
AC_SUBST(BINDIR)
LOCALSTATEDIR=`eval echo $localstatedir`
AC_SUBST(LOCALSTATEDIR)

755
756
# Set CFLAGS _after_ all the above checks, since our warnings are stricter
# than autoconf's macros like.
757
if test "$GCC" = yes; then
758
  CFLAGS="$CFLAGS -Wall -g -O2"
759
760
761
  # Disable GCC's strict aliasing checks.  They are an hours-to-debug
  # accident waiting to happen.
  CFLAGS="$CFLAGS -fno-strict-aliasing"
762
763
else
  CFLAGS="$CFLAGS -g -O"
764
  enable_gcc_warnings=no
765
fi
766

767
# Add some more warnings which we use in development but not in the
768
# released versions.  (Some relevant gcc versions can't handle these.)
769
if test x$enable_gcc_warnings = xyes; then
770

771
  AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
772
773
#if !defined(__GNUC__) || (__GNUC__ < 4)
#error
774
#endif]), have_gcc4=yes, have_gcc4=no)
775

776
  AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
777
#if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
778
779
780
#error
#endif]), have_gcc42=yes, have_gcc42=no)

781
782
783
784
785
  AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
#if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
#error
#endif]), have_gcc43=yes, have_gcc43=no)

786
787
788
789
790
791
  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"

792
  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 -Werror"
793

794
  # Disabled, so we can use mallinfo(): -Waggregate-return
795
796
797
798
799

  if test x$have_gcc4 = xyes ; then 
    # These warnings break gcc 3.3.5 and work on gcc 4.0.2
    CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  fi
800

801
802
803
804
  if test x$have_gcc42 = xyes ; then 
    # These warnings break gcc 4.0.2 and work on gcc 4.2
    # XXXX020 Use -fstack-protector.
    # XXXX020 See if any of these work with earlier versions.
805
806
807
808
809
810
811
812
    CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wnormalized=id -Woverride-init -Wstrict-overflow=1"
    # 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"
813
814
  fi

815
816
817
818
  if test x$have_shorten64_flag = xyes ; then
    CFLAGS="$CFLAGS -Wshorten-64-to-32"
  fi

819
820
##This will break the world on some 64-bit architectures
# CFLAGS="$CFLAGS -Winline"
821
fi
822

823
824


825
826
CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"

827
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 doc/tor.1 src/Makefile doc/Makefile doc/design-paper/Makefile doc/spec/Makefile src/config/Makefile src/common/Makefile src/or/Makefile src/win32/Makefile src/tools/Makefile contrib/suse/Makefile contrib/suse/tor.sh contrib/tor.wxs])
828
AC_OUTPUT
829
830
831
832
833

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