configure.in 20.5 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
dnl Copyright (c) 2004-2007, Roger Dingledine, Nick Mathewson
Nick Mathewson's avatar
Nick Mathewson committed
4
dnl See LICENSE for licensing information
5
6

AC_INIT
7
AM_INIT_AUTOMAKE(tor, 0.2.0.9-alpha-dev)
8
AM_CONFIG_HEADER(orconfig.h)
9

10
11
AC_CANONICAL_HOST

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

16
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
CPPFLAGS="$CPPFLAGS -I../common"

20
AC_ARG_ENABLE(debug,
21
 AS_HELP_STRING(--enable-debug, compile with debugging info),
22
[if test x$enableval = xyes; then
23
    CFLAGS="$CFLAGS -g"
24
25
fi])

26
27
28
29
30
31
32
33
AC_ARG_ENABLE(cell-pool,
     AS_HELP_STRING(--disable-cell-pool, disable pool allocator for cells))

if test x$enable_cell_pool != xno; then
  AC_DEFINE(ENABLE_CELL_POOL, 1,
            [Defined if we try to use the pool allocator for queued cells])
fi

34
AC_ARG_ENABLE(transparent,
35
     AS_HELP_STRING(--disable-transparent, disable transparent proxy support),
36
37
38
39
40
41
     [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
42
AC_ARG_ENABLE(threads,
43
     AS_HELP_STRING(--disable-threads, disable multi-threading support))
Nick Mathewson's avatar
Nick Mathewson committed
44
45

if test x$enable_threads = x; then
46
   case $host in
47
48
49
50
51
    *-*-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
52
53
54
55
56
57
58
59
60
    *)
     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

61
62
63
64
65
66
case $host in
   *-*-solaris* )
     AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
     ;;
esac

67
AC_ARG_ENABLE(gcc-warnings,
68
     AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
69

70
71
72
73
AC_PROG_CC
AC_PROG_MAKE_SET
AC_PROG_RANLIB

74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
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)

92
93
94

dnl If WIN32 is defined and non-zero, we are building for win32
AC_MSG_CHECKING([for win32])
95
96
AC_RUN_IFELSE([
int main(int c, char **v) {
97
98
99
100
101
102
103
104
105
106
107
#ifdef WIN32
#if WIN32
  return 0;
#else
  return 1;
#endif
#else
  return 2;
#endif
}],
bwin32=true; AC_MSG_RESULT([yes]),
108
109
bwin32=false; AC_MSG_RESULT([no]),
bwin32=cross; AC_MSG_RESULT([cross])
110
111
)

112
113
114
115
116
117
118
119
120
121
122
123
124
125
if test $bwin32 = cross; then
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

126
127
128
if test $bwin32 = true; then
AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
fi
129
AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
130

131
132
dnl Enable C99 when compiling with MIPSpro
AC_MSG_CHECKING([for MIPSpro compiler])
133
AC_COMPILE_IFELSE(AC_LANG_PROGRAM(, [
134
135
136
137
#if (defined(__sgi) && defined(_COMPILER_VERSION))
#error
  return x(y);
#endif
138
139
140
]),
bmipspro=false; AC_MSG_RESULT(no),
bmipspro=true; AC_MSG_RESULT(yes))
141
142
143
144
145

if test $bmipspro = true; then
  CFLAGS="$CFLAGS -c99"
fi

146
147
AC_C_BIGENDIAN

148
AC_SEARCH_LIBS(socket, [socket])
149
AC_SEARCH_LIBS(gethostbyname, [nsl])
150
AC_SEARCH_LIBS(dlopen, [dl])
151
AC_SEARCH_LIBS(inet_aton, [resolv])
152
153
154
155
156

if test $enable_threads = "yes"; then
  AC_SEARCH_LIBS(pthread_create, [pthread])
  AC_SEARCH_LIBS(pthread_detach, [pthread])
fi
157

158
159
160
161
dnl -------------------------------------------------------------------
dnl Check for functions before libevent, since libevent-1.2 apparently
dnl exports strlcpy without defining it in a header.

162
AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit strlcat strlcpy strtoull ftello getaddrinfo localtime_r gmtime_r memmem strtok_r inet_pton inet_ntop mallinfo)
163
164
165
166
167
168

if test $enable_threads = "yes"; then
  AC_CHECK_HEADERS(pthread.h)
  AC_CHECK_FUNCS(pthread_create)
fi

169
dnl ------------------------------------------------------
170
dnl Where do you live, libevent?  And how do we call you?
171

Nick Mathewson's avatar
   
Nick Mathewson committed
172
if test $bwin32 = true; then
173
174
175
  TOR_LIB_WS32=-lws2_32
  # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  # think it's actually necessary.
176
  TOR_LIB_GDI=-lgdi32
Nick Mathewson's avatar
   
Nick Mathewson committed
177
else
178
179
  TOR_LIB_WS32=
  TOR_LIB_GDI=
Nick Mathewson's avatar
   
Nick Mathewson committed
180
fi
181
182
AC_SUBST(TOR_LIB_WS32)
AC_SUBST(TOR_LIB_GDI)
Nick Mathewson's avatar
   
Nick Mathewson committed
183

184
185
186
187
188
189
dnl This is a disgusting hack so we safely include recent libevent headers.
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)

190
tor_libevent_pkg_redhat="libevent"
191
tor_libevent_pkg_debian="libevent-dev"
192
193
194
tor_libevent_devpkg_redhat="libevent-devel"
tor_libevent_devpkg_debian="libevent-dev"

195
TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $TOR_LIB_WS32], [
196
#include <stdlib.h>
197
#include <sys/time.h>
Roger Dingledine's avatar
Roger Dingledine committed
198
#include <sys/types.h>
199
#include <event.h>], [void exit(int); void *event_init(void);],
200
    [event_init(); exit(0);], [--with-libevent-dir], [/opt/libevent])
201

202
dnl Now check for particular libevent functions.
203
204
save_LIBS="$LIBS"
save_LDFLAGS="$LDFLAGS"
205
save_CPPFLAGS="$CPPFLAGS"
206
LIBS="-levent $TOR_LIB_WS32 $LIBS"
207
LDFLAGS="$TOR_LDFLAGS_libevent $LIBS"
208
CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
209
AC_CHECK_FUNCS(event_get_version event_get_method event_set_log_callback)
210
211
LIBS="$save_LIBS"
LDFLAGS="$save_LDFLAGS"
212
CPPFLAGS="$save_CPPFLAGS"
213

214
dnl ------------------------------------------------------
215
dnl Where do you live, openssl?  And how do we call you?
216

217
218
219
220
221
tor_openssl_pkg_redhat="openssl"
tor_openssl_pkg_debian="libssl"
tor_openssl_devpkg_redhat="openssl-devel"
tor_openssl_devpkg_debian="libssl-dev"

222
TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
223
224
225
226
    [#include <openssl/rand.h>],
    [void RAND_add(const void *buf, int num, double entropy);],
    [RAND_add((void*)0,0,0); exit(0);], [--with-ssl-dir],
    [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
227

228
229
dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()

230
231
232
233
234
235
236
237
238
239
240
241
242
243
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])

244
dnl Make sure to enable support for large off_t if avalable.
245

246
247
AC_SYS_LARGEFILE

248
AC_CHECK_HEADERS(unistd.h string.h signal.h ctype.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.))
249

250
AC_CHECK_HEADERS(netdb.h sys/ioctl.h sys/socket.h arpa/inet.h netinet/in.h pwd.h grp.h sys/un.h)
251

252
253
dnl These headers are not essential

254
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 netintet/in.h netinet/in6.h malloc.h)
255

256
AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
257
258
259
260
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
261
262
#include <sys/socket.h>
#endif])
263
AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
264
265
266
267
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
268
#include <sys/socket.h>
269
270
271
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
272
#endif])
273
AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
274
        linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
275
276
277
278
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
279
280
#include <sys/socket.h>
#endif])
281
282
283

if test x$transparent = xtrue ; then
   transparent_ok=0
284
   if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
285
286
287
288
289
     transparent_ok=1
   fi
   if test x$linux_netfilter_ipv4 = x1 ; then
     transparent_ok=1
   fi
290
   if test x$transparent_ok = x1 ; then
291
292
293
294
295
296
297
298
299
300
     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

301
AC_FUNC_FSEEKO
302

303
304
305
306
307
308
309
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])
310

311
312
313
dnl In case we aren't given a working stdint.h, we'll need to grow our own.
dnl Watch out.

314
315
316
317
318
319
320
321
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)
322
323
AC_CHECK_SIZEOF(intptr_t)
AC_CHECK_SIZEOF(uintptr_t)
324

325
dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
326

327
328
329
330
331
332
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)
333
AC_CHECK_SIZEOF(void *)
334
AC_CHECK_SIZEOF(time_t)
335
AC_CHECK_SIZEOF(size_t)
336

337
338
AC_CHECK_TYPES([uint, u_char])

339
AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, struct sockaddr_storage, sa_family_t], , ,
340
341
342
343
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
344
345
346
347
348
349
350
#include <netinet/in.h>
#endif
#ifdef HAVE_NETINET_IN6_H
#include <netinet/in6.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
351
352
353
354
355
356
357
358
359
360
361
362
363
#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
])
364

365
if test -z "$CROSS_COMPILE"; then
366
AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
367
AC_RUN_IFELSE(AC_LANG_SOURCE([
368
369
370
371
372
373
374
375
376
#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
377
int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }]),
378
379
  tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes)
])
380
381
382
383
384
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
385
386
387
388
389
390

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

391
392
393
394
395
AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])
396

397
398
399
400
# We want to make sure that we _don't_ have a cell_t defined, like IRIX does.

AC_CHECK_SIZEOF(cell_t)

401
# Now make sure that NULL can be represented as zero bytes.
402
if test -z "$CROSS_COMPILE"; then
403
404
405
AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
[AC_RUN_IFELSE([AC_LANG_SOURCE(
[[#include <stdlib.h>
406
#include <string.h>
407
408
409
410
#include <stdio.h>
#ifdef HAVE_STDDEF_H
#include <stddef.h>
#endif
411
int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
412
return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
413
414
415
416
       [tor_cv_null_is_zero=yes],
       [tor_cv_null_is_zero=no],
       [tor_cv_null_is_zero=cross])])

417
418
419
420
421
422
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

423
424
425
426
427
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

428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
# And what happens when we malloc zero?

if test -z "$CROSS_COMPILE"; then
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])])

else
  # 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.])
  tor_cv_malloc_zero_works=no
fi

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

455
456
457
458
459
460
461
462
463
464
465
466
# whether we seem to be in a 2s-complement world.
if test -z "$CROSS_COMPILE"; then
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])])

else
  # Cross-compiling; let's hope that the target isn't raving mad.
467
  AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
468
469
470
471
472
473
474
475
  tor_cv_twos_complement=yes
fi

if test $tor_cv_twos_complement = yes; then
  AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
            [Define to 1 iff we represent negative integers with two's complement])
fi

476
# Whether we should use the dmalloc memory allocation debugging library.
Roger Dingledine's avatar
Roger Dingledine committed
477
AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
478
AC_ARG_WITH(dmalloc,
479
[  --with-dmalloc          Use debug memory allocation library. ],
480
481
482
483
484
485
486
487
488
489
[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
490
  AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
491
  AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
492
493
494
495
  AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
fi

496
497
498
499
500
501
502
# 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)

503
504
505
506
507
508
509
510
511
# 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 $MY_CFLAGS"
512
  AC_COMPILE_IFELSE(AC_LANG_PROGRAM([
513
#include <netdb.h>
514
  ], [[
515
516
517
518
    char *cp1, *cp2;
    struct hostent *h1, *h2;
    int i1, i2;
    (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
519
  ]]),[
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
    AC_DEFINE(HAVE_GETHOSTBYNAME_R)
    AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
     [Define this if gethostbyname_r takes 6 arguments])
    AC_MSG_RESULT(6)
  ], [
    AC_TRY_COMPILE([
#include <netdb.h>
    ], [
      char *cp1, *cp2;
      struct hostent *h1;
      int i1, i2;
      (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
    ], [
      AC_DEFINE(HAVE_GETHOSTBYNAME_R)
      AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
        [Define this if gethostbyname_r takes 5 arguments])
      AC_MSG_RESULT(5)
   ], [
      AC_TRY_COMPILE([
#include <netdb.h>
     ], [
       char *cp1;
       struct hostent *h1;
       struct hostent_data hd;
       (void) gethostbyname_r(cp1,h1,&hd);
     ], [
       AC_DEFINE(HAVE_GETHOSTBYNAME_R)
       AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
         [Define this if gethostbyname_r takes 3 arguments])
       AC_MSG_RESULT(3)
     ], [
       AC_MSG_RESULT(0)
     ])
  ])
 ])
 CFLAGS=$OLD_CFLAGS
])

558
AC_CACHE_CHECK([whether the C compiler supports __func__],
559
  tor_cv_have_func_macro,
560
561
562
  AC_COMPILE_IFELSE([
#include <stdio.h>
int main(int c, char **v) { puts(__func__); }],
563
564
  tor_cv_have_func_macro=yes,
  tor_cv_have_func_macro=no))
565
566

AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
567
  tor_cv_have_FUNC_macro,
568
569
570
  AC_COMPILE_IFELSE([
#include <stdio.h>
int main(int c, char **v) { puts(__FUNC__); }],
571
572
  tor_cv_have_FUNC_macro=yes,
  tor_cv_have_FUNC_macro=no))
573
574

AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
575
  tor_cv_have_FUNCTION_macro,
576
577
578
  AC_COMPILE_IFELSE([
#include <stdio.h>
int main(int c, char **v) { puts(__FUNCTION__); }],
579
580
  tor_cv_have_FUNCTION_macro=yes,
  tor_cv_have_FUNCTION_macro=no))
581

582
if test $tor_cv_have_func_macro = 'yes'; then
583
584
585
  AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
fi

586
if test $tor_cv_have_FUNC_macro = 'yes'; then
587
588
589
  AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
fi

590
if test $tor_cv_have_FUNCTION_macro = 'yes'; then
591
592
593
594
  AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
           [Defined if the compiler supports __FUNCTION__])
fi

595
596
597
598
599
600
601
602
603
604
605
606
# $prefix stores the value of the --prefix command line option, or
# NONE if the option wasn't set.  In the case that it wasn't set, make
# it be the default, so that we can use it to expand directories now.
if test "x$prefix" = "xNONE"; then
  prefix=$ac_default_prefix
fi

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

607
608
609
if test "x$CONFDIR" = "x"; then
  CONFDIR=`eval echo $sysconfdir/tor`
fi
610
AC_SUBST(CONFDIR)
611
AH_TEMPLATE([CONFDIR],[tor's configuration directory])
612
613
614
615
616
617
618
AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")

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

LOCALSTATEDIR=`eval echo $localstatedir`
AC_SUBST(LOCALSTATEDIR)
619
AH_TEMPLATE([LOCALSTATEDIR], [Default location to store state files.])
620
AC_DEFINE_UNQUOTED(LOCALSTATEDIR,"$LOCALSTATEDIR")
621

622
dnl Note: this is not the same as Tor's "DataDir" config option.
623
624
625
626
627
dnl   We'd call it 'DATADIR', except that's a symbol in MinGW's objidl.h.  
SHARE_DATADIR=`eval echo $datadir`
AC_SUBST(SHARE_DATADIR)
AH_TEMPLATE([SHARE_DATADIR], [Default location for platform-independent read-only data.])
AC_DEFINE_UNQUOTED(SHARE_DATADIR,"$SHARE_DATADIR")
628

629
630
# Set CFLAGS _after_ all the above checks, since our warnings are stricter
# than autoconf's macros like.
631
632
633
634
if test $ac_cv_c_compiler_gnu = yes; then
  CFLAGS="$CFLAGS -Wall -g -O2"
else
  CFLAGS="$CFLAGS -g -O"
635
  enable_gcc_warnings=no
636
fi
637

638
# Add some more warnings which we use in development but not in the
639
# released versions.  (Some relevant gcc versions can't handle these.)
640
if test x$enable_gcc_warnings = xyes; then
641

642
  AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
643
644
#if !defined(__GNUC__) || (__GNUC__ < 4)
#error
645
#endif]), have_gcc4=yes, have_gcc4=no)
646

647
  AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
648
#if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
649
650
651
#error
#endif]), have_gcc42=yes, have_gcc42=no)

652
653
  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"
  # Disabled, so we can use mallinfo(): -Waggregate-return
654
655
656
657
658

  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
659

660
661
662
663
  if test x$have_gcc42 = xyes ; then 
    # These warnings break gcc 4.0.2 and work on gcc 4.2
    # XXXX020 Use -fstack-protector.
    # XXXX020 See if any of these work with earlier versions.
664
    CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wnormalized=id -Woverride-init -Wstrict-overflow=5"
665
666
  fi

667
668
669
##This will break the world on some 64-bit architectures
# CFLAGS="$CFLAGS -Winline"

670
fi
671

672
673
CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"

674
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])
675
AC_OUTPUT
676
677
678
679
680

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