configure.in 20.4 KB
Newer Older
Nick Mathewson's avatar
Nick Mathewson committed
1
dnl $Id$
Roger Dingledine's avatar
Roger Dingledine committed
2
3
dnl Copyright (c) 2001-2004, Roger Dingledine
dnl Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson
Nick Mathewson's avatar
Nick Mathewson committed
4
dnl See LICENSE for licensing information
5
6

AC_INIT
Roger Dingledine's avatar
Roger Dingledine committed
7
AM_INIT_AUTOMAKE(tor, 0.1.2.0-alpha-cvs)
8
9
AM_CONFIG_HEADER(orconfig.h)

10
11
AC_CANONICAL_HOST

12
13
14
if test -f /etc/redhat-release; then
    CFLAGS="$CFLAGS -I/usr/kerberos/include"
fi
15
16

AC_ARG_ENABLE(debug,
Nick Mathewson's avatar
Nick Mathewson committed
17
 AC_HELP_STRING(--enable-debug, compile with debugging info),
18
[if test x$enableval = xyes; then
19
    CFLAGS="$CFLAGS -g"
20
21
fi])

Nick Mathewson's avatar
Nick Mathewson committed
22
23
24
25
AC_ARG_ENABLE(threads,
     AC_HELP_STRING(--disable-threads, disable multi-threading support))

if test x$enable_threads = x; then
26
   case $host in
27
    *-*-netbsd* | *-*-openbsd* )
28
29
     # Don't try multithreading on netbsd -- there is no threadsafe DNS
     # lookup function there.
30
31
     AC_MSG_NOTICE([You are running OpenBSD or NetBSD; I am assuming that
getaddrinfo is not threadsafe here, so I will disable threads.])
Nick Mathewson's avatar
Nick Mathewson committed
32
     enable_threads="no";;
33
34
35
36
37
    *-*-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
38
39
40
41
42
43
44
45
46
    *)
     enable_threads="yes";;
   esac
fi

if test $enable_threads = "yes"; then
  AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
fi

47
48
49
50
51
52
53
54
55
56
57
58
AC_ARG_ENABLE(eventdns,
     AC_HELP_STRING(--enable-eventdns, enable asynchronous dns module),
     [case "${enableval}" in 
        yes) eventdns=true ;;
        no)  eventdns=false ;;
        *) AC_MSG_ERROR(bad value for --enable-eventdns) ;;
      esac], [eventdns=false])
AM_CONDITIONAL(EVENTDNS, test x$eventdns = xtrue)
if test x$eventdns = xtrue; then
   AC_DEFINE([USE_EVENTDNS], 1, "Define to 1 if we'll be using eventdns.c")
fi

59
60
AC_ARG_ENABLE(transparent,
     AC_HELP_STRING(--disable-transparent, disable transparent proxy support),
61
     [case "${enableval}" in
62
63
64
65
66
        yes) transparent=true ;;
        no)  transparent=false ;;
        *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
      esac], [transparent=true])

67
68
69
70
71
72
case $host in
   *-*-solaris* )
     AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
     ;;
esac

73
74
75
76
77
78
AC_PROG_CC
AC_PROG_MAKE_SET
AC_PROG_RANLIB

# The big search for OpenSSL
# copied from openssh's configure.ac
79
tryssldir=""
80
81
82
83
84
85
86
87
88
AC_ARG_WITH(ssl-dir,
        [  --with-ssl-dir=PATH     Specify path to OpenSSL installation ],
        [
                if test "x$withval" != "xno" ; then
                        tryssldir=$withval
                fi
        ]
)

89
90
91
92
93
94
95
96
97
98
trylibeventdir=""
AC_ARG_WITH(libevent-dir,
       [  --with-libevent-dir=PATH     Specify path to Libevent installation ],
       [
                if test "x$withval" != "xno" ; then
                        trylibeventdir=$withval
                fi
       ]
)

99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
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)

117
AC_SEARCH_LIBS(socket, [socket])
118
AC_SEARCH_LIBS(gethostbyname, [nsl])
119
AC_SEARCH_LIBS(dlopen, [dl])
120
121
122
123
124

if test $enable_threads = "yes"; then
  AC_SEARCH_LIBS(pthread_create, [pthread])
  AC_SEARCH_LIBS(pthread_detach, [pthread])
fi
125
126

dnl ------------------------------------------------------
127
dnl Where do you live, libevent?  And how do we call you?
128

129
AC_CACHE_CHECK([for libevent directory], ac_cv_libevent_dir, [
130
131
  saved_LIBS="$LIBS"
  saved_LDFLAGS="$LDFLAGS"
132
  saved_CPPFLAGS="$CPPFLAGS"
133
  le_found=no
134
  for ledir in $trylibeventdir "" $prefix /usr/local ; do
135
136
    LDFLAGS="$saved_LDFLAGS"
    LIBS="$saved_LIBS -levent"
137

138
139
    # Skip the directory if it isn't there.
    if test ! -z "$ledir" -a ! -d "$ledir" ; then
140
       continue;
141
    fi
142
143
144
145
146
147
    if test ! -z "$ledir" ; then
      if test -d "$ledir/lib" ; then
        LDFLAGS="-L$ledir/lib $LDFLAGS"
      else
        LDFLAGS="-L$ledir $LDFLAGS"
      fi
148
149
150
151
152
      if test -d "$ledir/include" ; then
        CPPFLAGS="-I$ledir/include $CPPFLAGS"
      else
        CPPFLAGS="-I$ledir $CPPFLAGS"
      fi
153
    fi
154
    # Can I compile and link it?
155
    AC_TRY_LINK([#include <sys/time.h>
Roger Dingledine's avatar
Roger Dingledine committed
156
#include <sys/types.h>
157
#include <event.h>], [ event_init(); ],
158
159
160
161
162
163
164
       [ libevent_linked=yes ], [ libevent_linked=no ])
    if test $libevent_linked = yes; then
       if test ! -z "$ledir" ; then
         ac_cv_libevent_dir=$ledir
       else
         ac_cv_libevent_dir="(system)"
       fi
165
       le_found=yes
166
167
168
       break
    fi
  done
169
  LIBS="$saved_LIBS"
170
  LDFLAGS="$saved_LDFLAGS"
171
  CPPFLAGS="$saved_CPPFLAGS"
172
  if test $le_found = no ; then
173
174
    AC_MSG_ERROR([Could not find a linkable libevent. You can specify an explicit path using --with-libevent-dir])
  fi
175
176
177
178
179
180
181
182
183
])
LIBS="$LIBS -levent"
if test $ac_cv_libevent_dir != "(system)"; then
  if test -d "$ac_cv_libevent_dir/lib" ; then
    LDFLAGS="-L$ac_cv_libevent_dir/lib $LDFLAGS"
    le_libdir="$ac_cv_libevent_dir/lib"
  else
    LDFLAGS="-L$ac_cv_libevent_dir $LDFLAGS"
    le_libdir="$ac_cv_libevent_dir"
184
  fi
185
186
187
188
  if test -d "$ac_cv_libevent_dir/include" ; then
    CPPFLAGS="-I$ac_cv_libevent_dir/include $CPPFLAGS"
  else
    CPPFLAGS="-I$ac_cv_libevent_dir $CPPFLAGS"
189
  fi
190
fi
191

192
if test -z "$CROSS_COMPILE"; then
193
194
AC_CACHE_CHECK([whether we need extra options to link libevent],
               ac_cv_libevent_linker_option, [
195
    saved_LDFLAGS="$LDFLAGS"
196
    le_runs=no
197
    linked_with=nothing
198
    for le_extra in "" "-Wl,-R$le_libdir" "-R$le_libdir" ; do
199
      LDFLAGS="$le_extra $saved_LDFLAGS"
200
      AC_TRY_RUN([void *event_init(void);
201
202
                int main(int c, char **v) {
                   event_init(); return 0;
203
                }],
204
                libevent_runs=yes, libevent_runs=no)
205
206
      if test $libevent_runs = yes ; then
        if test -z "$le_extra" ; then
207
          ac_cv_libevent_linker_option='(none)'
208
209
210
211
212
213
214
        else
          ac_cv_libevent_linker_option=$le_extra
        fi
        le_runs=yes
        break
      fi
    done
215
    if test $le_runs = no ; then
216
      AC_MSG_ERROR([Found linkable libevent in $ac_cv_libevent_dir, but it doesn't run, even with -R.  Maybe specify another using --with-libevent-dir?])
217
218
219
    fi
    LDFLAGS="$saved_LDFLAGS"
])
220

221
222
if test $ac_cv_libevent_linker_option != '(none)' ; then
   LDFLAGS="$ac_cv_libevent_linker_option $LDFLAGS"
223
fi
224
fi
225
226

dnl ------------------------------------------------------
227
dnl Where do you live, openssl?  And how do we call you?
228

229
230
231
AC_CACHE_CHECK([for OpenSSL directory], ac_cv_openssl_dir, [
  saved_LIBS="$LIBS"
  saved_LDFLAGS="$LDFLAGS"
232
  saved_CPPFLAGS="$CPPFLAGS"
233
234
235
236
  ssl_found=no
  for ssldir in $tryssldir "" $prefix /usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /usr/pkg /opt /opt/openssl ; do
    LDFLAGS="$saved_LDFLAGS"
    LIBS="$saved_LIBS -lssl -lcrypto"
237

238
239
240
241
242
243
244
245
246
247
    # Skip the directory if it isn't there.
    if test ! -z "$ssldir" -a ! -d "$ssldir" ; then
       continue;
    fi
    if test ! -z "$ssldir" ; then
      if test -d "$ssldir/lib" ; then
        LDFLAGS="-L$ssldir/lib $LDFLAGS"
      else
        LDFLAGS="-L$ssldir $LDFLAGS"
      fi
248
249
250
251
252
      if test -d "$ssldir/include" ; then
        CPPFLAGS="-I$ssldir/include $CPPFLAGS"
      else
        CPPFLAGS="-I$ssldir $CPPFLAGS"
      fi
253
254
    fi
    # Can I link it?
255
256
    AC_TRY_LINK([#include <openssl/rand.h>],
       [ RAND_add((void*)0,0,0); ],
257
258
259
260
261
262
263
264
265
266
267
268
       [ openssl_linked=yes ], [ openssl_linked=no ])
    if test $openssl_linked = yes; then
       if test ! -z "$ssldir" ; then
         ac_cv_openssl_dir=$ssldir
       else
         ac_cv_openssl_dir="(system)"
       fi
       ssl_found=yes
       break
    fi
  done
  LIBS="$saved_LIBS"
269
  LDFLAGS="$saved_LDFLAGS"
270
  CPPFLAGS="$saved_CPPFLAGS"
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
  if test $ssl_found = no ; then
    AC_MSG_ERROR([Could not find a linkable OpenSSL. You can specify an explicit path using --with-ssl-dir])
  fi
])
LIBS="$LIBS -lssl -lcrypto"
if test "$ac_cv_openssl_dir" != "(system)"; then
  if test -d "$ac_cv_openssl_dir/lib" ; then
    LDFLAGS="-L$ac_cv_openssl_dir/lib $LDFLAGS"
    ssl_libdir="$ac_cv_openssl_dir/lib"
  else
    LDFLAGS="-L$ac_cv_openssl_dir $LDFLAGS"
    ssl_libdir="$ac_cv_openssl_dir"
  fi
  if test -d "$ac_cv_openssl_dir/include" ; then
    CPPFLAGS="-I$ac_cv_openssl_dir/include $CPPFLAGS"
  else
    CPPFLAGS="-I$ac_cv_openssl_dir $CPPFLAGS"
  fi
fi
290

291
292
if test -z $CROSS_COMPILE
then
293
294
295
296
AC_CACHE_CHECK([whether we need extra options to link OpenSSL],
               ac_cv_openssl_linker_option, [
    saved_LDFLAGS="$LDFLAGS"
    ssl_runs=no
297
    linked_with=nothing
298
299
300
    for ssl_extra in "" "-Wl,-R$ssl_libdir" "-R$ssl_libdir" ; do
      LDFLAGS="$ssl_extra $saved_LDFLAGS"
      AC_TRY_RUN([
301
302
#include <string.h>
#include <openssl/rand.h>
Nick Mathewson's avatar
Nick Mathewson committed
303
int main(void)
304
305
306
307
308
309
310
{
        char a[2048];
        memset(a, 0, sizeof(a));
        RAND_add(a, sizeof(a), sizeof(a));
        return(RAND_status() <= 0);
}
                        ],
311
312
                openssl_runs=yes, openssl_runs=no)
      if test $openssl_runs = yes ; then
313
314
315
316
317
        if test "$linked_with" = nothing; then
           linked_with="$ssl_extra"
        fi
        AC_TRY_RUN([
#include <openssl/opensslv.h>
318
#include <openssl/crypto.h>
319
320
321
int main(void) {
return (OPENSSL_VERSION_NUMBER == SSLeay()) == 0;
}],
322
323
324
        right_version=yes, right_version=no)
        if test "$right_version" = yes; then
          if test -z "$ssl_extra" ; then
325
            ac_cv_openssl_linker_option='(none)'
326
327
328
329
330
331
332
333
334
335
336
337
338
          else
            ac_cv_openssl_linker_option=$ssl_extra
          fi
          ssl_runs=yes
          break
        fi
     fi
    done
    if test $ssl_runs = no ; then
      if test "$linked_with" = 'nothing' ; then
        AC_MSG_ERROR([Found linkable OpenSSL in $ac_cv_openssl_dir, but it doesn't run, even with -R.  Maybe specify another using --with-ssl-dir?])
      else
        if test -z "$linked_with" ; then
339
            ac_cv_openssl_linker_option='(none)'
340
        else
341
            ac_cv_openssl_linker_option=$linked_with
342
        fi
343
        AC_MSG_WARN([I managed to make OpenSSL link and run, but I couldn't make it link against the same version I found header files for.])
344
345
346
      fi
    fi
    LDFLAGS="$saved_LDFLAGS"
347
])
348

349
if test "$ac_cv_openssl_linker_option" != '(none)' ; then
350
   LDFLAGS="$ac_cv_openssl_linker_option $LDFLAGS"
351
fi
352
fi
353
354

dnl Make sure to enable support for large off_t if avalable.
355

356
357
AC_SYS_LARGEFILE

Nick Mathewson's avatar
Nick Mathewson committed
358
359
dnl The warning message here is no longer strictly accurate.

360
AC_CHECK_HEADERS(unistd.h string.h signal.h netdb.h ctype.h sys/stat.h sys/types.h fcntl.h sys/fcntl.h sys/ioctl.h sys/socket.h sys/time.h netinet/in.h arpa/inet.h errno.h assert.h time.h pwd.h grp.h, , AC_MSG_WARN(some headers were not found, compilation may fail))
361
362

AC_CHECK_HEADERS(event.h, , AC_MSG_ERROR(Libevent header (event.h) not found. Tor requires libevent to build.))
363

364
365
AC_CHECK_HEADERS(zlib.h, , AC_MSG_ERROR(Zlib header (zlib.h) not found. Tor requires zlib to build. You may need to install a zlib development package.))

366
367
dnl These headers are not essential

368
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 stddef.h inttypes.h utime.h sys/utime.h sys/mman.h alloca.h)
369

370
371
AC_CHECK_HEADERS(net/if.h, [net_if_found=1], [net_if_found=0])
AC_CHECK_HEADERS(net/pfvar.h, [net_pfvar_found=1], [net_pfvar_found=0])
372
373
AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
        [linux_netfilter_ipv4=1], [linux_netfilter_ipv4=0])
374

375
AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit setrlimit strlcat strlcpy strtoull getpwnam getpwuid ftello getaddrinfo localtime_r gmtime_r event_get_version event_get_method event_set_log_callback memmem mmap strtok_r)
376
377
378
379
380

if test $enable_threads = "yes"; then
  AC_CHECK_HEADERS(pthread.h)
  AC_CHECK_FUNCS(pthread_create)
fi
Felipe Bergo's avatar
Felipe Bergo committed
381

382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
if test x$transparent = xtrue ; then
   transparent_ok=0
   if test x$net_if_found = x1 -a x$net_pfvar_found = x1 ; then
     transparent_ok=1
   fi
   if test x$linux_netfilter_ipv4 = x1 ; then
     transparent_ok=1
   fi
   if x$transparent_ok = x1 ; then
     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

401
AC_FUNC_FSEEKO
402

403
404
AC_CHECK_MEMBERS([struct timeval.tv_sec])

405
406
407
dnl In case we aren't given a working stdint.h, we'll need to grow our own.
dnl Watch out.

408
409
410
411
412
413
414
415
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)
416
417
AC_CHECK_SIZEOF(intptr_t)
AC_CHECK_SIZEOF(uintptr_t)
418

419
dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
420

421
422
423
424
425
426
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)
427
AC_CHECK_SIZEOF(void *)
428
AC_CHECK_SIZEOF(time_t)
429
430

if test -z "$CROSS_COMPILE"; then
431
432
433
434
435
AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
AC_TRY_RUN([
int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }],
  tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes)
])
436
437
438
439
440
else
  # Cross-compiling; let's hope the target platform isn't loony.
  AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
  tor_cv_time_t_signed=yes
fi
441
442
443
444
445
446

if test $tor_cv_time_t_signed = yes; then
  AC_DEFINE([TIME_T_IS_SIGNED], 1,
            [Define to 1 iff time_t is signed])
fi

447
448
449
450
451
AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])
452

453
454
455
456
# We want to make sure that we _don't_ have a cell_t defined, like IRIX does.

AC_CHECK_SIZEOF(cell_t)

457
# Now make sure that NULL can be represented as zero bytes.
458
if test -z "$CROSS_COMPILE"; then
459
460
461
AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
[AC_RUN_IFELSE([AC_LANG_SOURCE(
[[#include <stdlib.h>
462
#include <string.h>
463
464
465
466
#include <stdio.h>
#ifdef HAVE_STDDEF_H
#include <stddef.h>
#endif
467
int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
468
return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
469
470
471
472
       [tor_cv_null_is_zero=yes],
       [tor_cv_null_is_zero=no],
       [tor_cv_null_is_zero=cross])])

473
474
475
476
477
478
else
  # 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.])
  tor_cv_null_is_zero=yes
fi

479
480
481
482
483
if test $tor_cv_null_is_zero = yes; then
  AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
            [Define to 1 iff memset(0) sets pointers to NULL])
fi

484
# Whether we should use the dmalloc memory allocation debugging library.
Roger Dingledine's avatar
Roger Dingledine committed
485
AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
486
AC_ARG_WITH(dmalloc,
487
[  --with-dmalloc          Use debug memory allocation library. ],
488
489
490
491
492
493
494
495
496
497
[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
498
  AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
499
  AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
500
501
502
503
  AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
fi

504
505
506
507
508
509
510
# 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)

511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
# 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 $MY_CFLAGS"
  AC_TRY_COMPILE([
#include <netdb.h>
  ], [
    char *cp1, *cp2;
    struct hostent *h1, *h2;
    int i1, i2;
    (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
  ], [
    AC_DEFINE(HAVE_GETHOSTBYNAME_R)
    AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
     [Define this if gethostbyname_r takes 6 arguments])
    AC_MSG_RESULT(6)
  ], [
    AC_TRY_COMPILE([
#include <netdb.h>
    ], [
      char *cp1, *cp2;
      struct hostent *h1;
      int i1, i2;
      (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
    ], [
      AC_DEFINE(HAVE_GETHOSTBYNAME_R)
      AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
        [Define this if gethostbyname_r takes 5 arguments])
      AC_MSG_RESULT(5)
   ], [
      AC_TRY_COMPILE([
#include <netdb.h>
     ], [
       char *cp1;
       struct hostent *h1;
       struct hostent_data hd;
       (void) gethostbyname_r(cp1,h1,&hd);
     ], [
       AC_DEFINE(HAVE_GETHOSTBYNAME_R)
       AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
         [Define this if gethostbyname_r takes 3 arguments])
       AC_MSG_RESULT(3)
     ], [
       AC_MSG_RESULT(0)
     ])
  ])
 ])
 CFLAGS=$OLD_CFLAGS
])

566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
AC_CACHE_CHECK([whether the C compiler supports __func__],
  ac_cv_have_func_macro,
  AC_COMPILE_IFELSE([
#include <stdio.h>
int main(int c, char **v) { puts(__func__); }],
  ac_cv_have_func_macro=yes,
  ac_cv_have_func_macro=no))

AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
  ac_cv_have_FUNC_macro,
  AC_COMPILE_IFELSE([
#include <stdio.h>
int main(int c, char **v) { puts(__FUNC__); }],
  ac_cv_have_FUNC_macro=yes,
  ac_cv_have_FUNC_macro=no))

AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
  ac_cv_have_FUNCTION_macro,
  AC_COMPILE_IFELSE([
#include <stdio.h>
int main(int c, char **v) { puts(__FUNCTION__); }],
  ac_cv_have_FUNCTION_macro=yes,
  ac_cv_have_FUNCTION_macro=no))

if test $ac_cv_have_func_macro = 'yes'; then
  AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
fi


if test $ac_cv_have_FUNC_macro = 'yes'; then
  AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
fi

if test $ac_cv_have_FUNCTION_macro = 'yes'; then
  AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
           [Defined if the compiler supports __FUNCTION__])
fi


605
606
607
608
609
610
611
612
613
614
615
616
617
618
# $prefix stores the value of the --prefix command line option, or
# NONE if the option wasn't set.  In the case that it wasn't set, make
# it be the default, so that we can use it to expand directories now.
if test "x$prefix" = "xNONE"; then
  prefix=$ac_default_prefix
fi

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

CONFDIR=`eval echo $sysconfdir/tor`
AC_SUBST(CONFDIR)
619
AH_TEMPLATE([CONFDIR],[tor's configuration directory])
620
621
622
623
624
625
626
AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")

BINDIR=`eval echo $bindir`
AC_SUBST(BINDIR)

LOCALSTATEDIR=`eval echo $localstatedir`
AC_SUBST(LOCALSTATEDIR)
627
AH_TEMPLATE([LOCALSTATEDIR], [Default location to store state files.])
628
AC_DEFINE_UNQUOTED(LOCALSTATEDIR,"$LOCALSTATEDIR")
629

630
631
# Set CFLAGS _after_ all the above checks, since our warnings are stricter
# than autoconf's macros like.
632
633
634
635
636
if test $ac_cv_c_compiler_gnu = yes; then
  CFLAGS="$CFLAGS -Wall -g -O2"
else
  CFLAGS="$CFLAGS -g -O"
fi
637
# Add some more warnings which we use in the cvs version but not in the
638
# released versions.  (Some relevant gcc versions can't handle these.)
639
#CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Winit-self -Wwrite-strings -Waggregate-return -Wmissing-declarations -Wmissing-field-initializers -Wredundant-decls -Winline"
640
# Add these in when you feel like fun.
641
#CFLAGS="$CFLAGS -Wbad-function-cast -Werror -Wdeclaration-after-statement -Wold-style-definition"
642

643
644
echo "confdir: $CONFDIR"

645
AC_OUTPUT(Makefile tor.spec 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 src/config/Makefile src/common/Makefile src/or/Makefile src/win32/Makefile src/tools/Makefile contrib/suse/Makefile contrib/suse/tor.sh)
646
647
648
649
650

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