configure.in 33.3 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
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])

62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
# By default, we're not ready to ship a NAT-PMP aware Tor
AC_ARG_ENABLE(nat-pmp,
     AS_HELP_STRING(--enable-nat-pmp, enable NAT-PMP support),
     [case "${enableval}" in
        yes) natpmp=true ;;
        no)  natpmp=false ;;
        * ) AC_MSG_ERROR(bad value for --enable-nat-pmp) ;;
      esac], [natpmp=false])

# By default, we're not ready to ship a UPnP aware Tor
AC_ARG_ENABLE(upnp,
     AS_HELP_STRING(--enable-upnp, enable UPnP support),
     [case "${enableval}" in
        yes) upnp=true ;;
        no)  upnp=false ;;
        * ) AC_MSG_ERROR(bad value for --enable-upnp) ;;
      esac], [upnp=false])

80

Nick Mathewson's avatar
Nick Mathewson committed
81
AC_ARG_ENABLE(threads,
82
     AS_HELP_STRING(--disable-threads, disable multi-threading support))
Nick Mathewson's avatar
Nick Mathewson committed
83
84

if test x$enable_threads = x; then
85
   case $host in
86
87
88
89
90
    *-*-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
91
92
93
94
95
    *)
     enable_threads="yes";;
   esac
fi

96
if test "$enable_threads" = "yes"; then
Nick Mathewson's avatar
Nick Mathewson committed
97
98
99
  AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
fi

100
101
102
103
104
105
case $host in
   *-*-solaris* )
     AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
     ;;
esac

106
AC_ARG_ENABLE(gcc-warnings,
107
     AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
108
109
AC_ARG_ENABLE(gcc-warnings-advisory,
     AS_HELP_STRING(--enable-gcc-warnings-advisory, [enable verbose warnings, excluding -Werror]))
110

111
112
113
114
115
116
117
118
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"
119
    CFLAGS="$CFLAGS -fwrapv -fPIE -Wstack-protector"
120
    CFLAGS="$CFLAGS --param ssp-buffer-size=1"
Linus Nordberg's avatar
Linus Nordberg committed
121
    LDFLAGS="$LDFLAGS -pie"
122
123
124
125
126
127
128
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$enableval = xyes; then
Linus Nordberg's avatar
Linus Nordberg committed
129
    LDFLAGS="$LDFLAGS -z relro -z now"
130
131
fi])

132
133
134
135
136
137
138
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

139
140
141
AC_ARG_ENABLE(bufferevents,
     AS_HELP_STRING(--enable-bufferevents, use Libevent's buffered IO.))

142
AC_PROG_CC
143
AC_PROG_CPP
144
145
AC_PROG_MAKE_SET
AC_PROG_RANLIB
146
147
148

dnl autoconf 2.59 appears not to support AC_PROG_SED
AC_CHECK_PROG([SED],[sed],[sed],[/bin/false])
149

150
151
152
dnl check for asciidoc and a2x
AC_PATH_PROG([ASCIIDOC], [asciidoc], none)
AC_PATH_PROG([A2X], [a2x], none)
153
154

AM_CONDITIONAL(USE_ASCIIDOC, test x$asciidoc = xtrue)
155

156
157
158
159
AM_CONDITIONAL(USE_FW_HELPER, test x$natpmp = xtrue || test x$upnp = xtrue)
AM_CONDITIONAL(NAT_PMP, test x$natpmp = xtrue)
AM_CONDITIONAL(MINIUPNPC, test x$upnp = xtrue)
AM_PROG_CC_C_O
160

161
162
AC_PATH_PROG([SHA1SUM], [sha1sum], none)
AC_PATH_PROG([OPENSSL], [openssl], none)
163

164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
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)

182
183
184

dnl If WIN32 is defined and non-zero, we are building for win32
AC_MSG_CHECKING([for win32])
185
AC_RUN_IFELSE([AC_LANG_SOURCE([
186
int main(int c, char **v) {
187
188
189
190
191
192
193
194
195
#ifdef WIN32
#if WIN32
  return 0;
#else
  return 1;
#endif
#else
  return 2;
#endif
196
}])],
197
bwin32=true; AC_MSG_RESULT([yes]),
198
199
bwin32=false; AC_MSG_RESULT([no]),
bwin32=cross; AC_MSG_RESULT([cross])
200
201
)

202
if test "$bwin32" = cross; then
203
AC_MSG_CHECKING([for win32 (cross)])
204
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
205
206
207
208
209
210
#ifdef WIN32
int main(int c, char **v) {return 0;}
#else
#error
int main(int c, char **v) {return x(y);}
#endif
211
])],
212
213
214
215
bwin32=true; AC_MSG_RESULT([yes]),
bwin32=false; AC_MSG_RESULT([no]))
fi

216
if test "$bwin32" = true; then
217
218
AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
fi
219
AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
220

221
222
dnl Enable C99 when compiling with MIPSpro
AC_MSG_CHECKING([for MIPSpro compiler])
223
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [
224
225
226
227
#if (defined(__sgi) && defined(_COMPILER_VERSION))
#error
  return x(y);
#endif
228
])],
229
bmipspro=false; AC_MSG_RESULT(no),
230
bmipspro=true; AC_MSG_RESULT(yes))
231

232
if test "$bmipspro" = true; then
233
234
235
  CFLAGS="$CFLAGS -c99"
fi

236
237
AC_C_BIGENDIAN

238
AC_SEARCH_LIBS(socket, [socket])
239
AC_SEARCH_LIBS(gethostbyname, [nsl])
240
AC_SEARCH_LIBS(dlopen, [dl])
241
AC_SEARCH_LIBS(inet_aton, [resolv])
242

243
if test "$enable_threads" = "yes"; then
244
245
246
  AC_SEARCH_LIBS(pthread_create, [pthread])
  AC_SEARCH_LIBS(pthread_detach, [pthread])
fi
247

248
249
250
251
dnl -------------------------------------------------------------------
dnl Check for functions before libevent, since libevent-1.2 apparently
dnl exports strlcpy without defining it in a header.

252
AC_CHECK_FUNCS(
253
	accept4 \
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
        flock \
        ftime \
        getaddrinfo \
        getrlimit \
        gettimeofday \
        gmtime_r \
        inet_aton \
        localtime_r \
        memmem \
        prctl \
        socketpair \
        strlcat \
        strlcpy \
        strptime \
        strtok_r \
        strtoull \
        sysconf \
        uname \
        vasprintf \
)
274
275
276
277
278
279
280
281
282
283
284
285

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
286

287
if test "$enable_threads" = "yes"; then
288
289
290
291
  AC_CHECK_HEADERS(pthread.h)
  AC_CHECK_FUNCS(pthread_create)
fi

292
dnl ------------------------------------------------------
293
dnl Where do you live, libevent?  And how do we call you?
294

295
if test "$bwin32" = true; then
296
297
298
  TOR_LIB_WS32=-lws2_32
  # Some of the cargo-cults recommend -lwsock32 as well, but I don't
  # think it's actually necessary.
299
  TOR_LIB_GDI=-lgdi32
Nick Mathewson's avatar
   
Nick Mathewson committed
300
else
301
302
  TOR_LIB_WS32=
  TOR_LIB_GDI=
Nick Mathewson's avatar
   
Nick Mathewson committed
303
fi
304
305
AC_SUBST(TOR_LIB_WS32)
AC_SUBST(TOR_LIB_GDI)
Nick Mathewson's avatar
   
Nick Mathewson committed
306

307
308
309
310
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.
311
312
313
314
315
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)

316
tor_libevent_pkg_redhat="libevent"
317
tor_libevent_pkg_debian="libevent-dev"
318
319
320
tor_libevent_devpkg_redhat="libevent-devel"
tor_libevent_devpkg_debian="libevent-dev"

321
TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $TOR_LIB_WS32], [
322
323
324
#ifdef WIN32
#include <winsock2.h>
#endif
325
#include <stdlib.h>
326
#include <sys/time.h>
Roger Dingledine's avatar
Roger Dingledine committed
327
#include <sys/types.h>
328
329
330
331
332
#include <event.h>], [
#ifdef WIN32
#include <winsock2.h>
#endif
void exit(int); void *event_init(void);],
333
334
    [
#ifdef WIN32
335
{WSADATA d; WSAStartup(0x101,&d); }
336
337
338
#endif
event_init(); exit(0);
], [--with-libevent-dir], [/opt/libevent])
339

340
dnl Now check for particular libevent functions.
341
342
save_LIBS="$LIBS"
save_LDFLAGS="$LDFLAGS"
343
save_CPPFLAGS="$CPPFLAGS"
344
LIBS="-levent $TOR_LIB_WS32 $LIBS"
345
LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
346
CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
347
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)
348
349
350
351
AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
[#include <event.h>
])

352
AC_CHECK_HEADERS(event2/event.h event2/dns.h event2/bufferevent_ssl.h)
353

354
355
LIBS="$save_LIBS"
LDFLAGS="$save_LDFLAGS"
356
CPPFLAGS="$save_CPPFLAGS"
357

358

359
360
AM_CONDITIONAL(USE_EXTERNAL_EVDNS, test x$ac_cv_header_event2_dns_h = xyes)

361
362
363
364
365
366
367
368
369
370
371
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)

372
373
dnl This isn't the best test for Libevent 2.0.3-alpha.  Once it's released,
dnl we can do much better.
374
375
if test "$enable_bufferevents" = "yes" ; then
  if test "$ac_cv_header_event2_bufferevent_ssl_h" != "yes" ; then
376
    AC_MSG_ERROR([You've asked for bufferevent support, but you're using a version of Libevent without SSL support.  This won't work.  We need Libevent 2.0.8-rc or later, and you don't seem to even have Libevent 2.0.3-alpha.])
377
378
379
380
381
382
  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])
383
    AC_COMPILE_IFELSE([AC_LANG_SOURCE([
384
385
386
387
388
389
390
#include <event2/event.h>
#if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 10
#error
int x = y(zz);
#else
int x = 1;
#endif
391
  ])], [event_version_number_works=yes; AC_MSG_RESULT([yes]) ],
392
393
394
395
396
     [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])
397
      AC_COMPILE_IFELSE([AC_LANG_SOURCE([
398
#include <event2/event.h>
399
#if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 0x02000800
400
401
402
403
404
#error
int x = y(zz);
#else
int x = 1;
#endif
405
   ])], [ AC_MSG_RESULT([yes]) ],
406
      [ AC_MSG_RESULT([no])
407
        AC_MSG_ERROR([Libevent does not seem new enough to support bufferevents.  We require 2.0.8-rc or later]) ] )
408
409
    fi
  fi
410
411
fi

412
413
414
415
LIBS="$save_LIBS"
LDFLAGS="$save_LDFLAGS"
CPPFLAGS="$save_CPPFLAGS"

416
417
418
419
420
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

421
dnl ------------------------------------------------------
422
dnl Where do you live, openssl?  And how do we call you?
423

424
425
426
427
428
tor_openssl_pkg_redhat="openssl"
tor_openssl_pkg_debian="libssl"
tor_openssl_devpkg_redhat="openssl-devel"
tor_openssl_devpkg_debian="libssl-dev"

429
430
431
432
433
434
435
436
437
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
  ])

438
TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
439
440
    [#include <openssl/rand.h>],
    [void RAND_add(const void *buf, int num, double entropy);],
441
    [RAND_add((void*)0,0,0); exit(0);], [],
442
    [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
443

444
445
dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()

446
447
448
449
450
echo "tor_cv_library_openssl_dir is $tor_cv_library_openssl_dir"
if test "$enable_static_openssl" = "yes"; then
   if test "$tor_cv_library_openssl_dir" = "(system)"; then
     AC_MSG_ERROR("You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl")
   else
451
     TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a"
452
453
   fi
else
454
     TOR_OPENSSL_LIBS="-lssl -lcrypto"
455
456
457
fi
AC_SUBST(TOR_OPENSSL_LIBS)

458
459
460
461
462
463
464
465
466
467
468
469
470
471
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])

472
473
474
475
476
477
478
479
480
481
482
483
484
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
485
dnl Make sure to enable support for large off_t if available.
486

487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512

dnl ------------------------------------------------------
dnl Where do you live, libnatpmp?  And how do we call you?
dnl There are no packages for Debian or Redhat as of this patch

if test "$natpmp" = "true"; then
    AC_DEFINE(NAT_PMP, 1, [Define to 1 if we are building with nat-pmp.])
    TOR_SEARCH_LIBRARY(libnatpmp, $trylibnatpmpdir, [-lnatpmp],
        [#include <natpmp.h>],
        [#include <natpmp.h>],
        [   int r;
            natpmp_t natpmp;
            natpmpresp_t response;
            r = initnatpmp(&natpmp);],
            [printf("initnatpmp() returned %d (%s)\n", r, r?"FAILED":"SUCCESS");
            exit(0);],
        [--with-libnatpmp-dir],
        [/usr/lib/])
fi


dnl ------------------------------------------------------
dnl Where do you live, libminiupnpc?  And how do we call you?
dnl There are no packages for Debian or Redhat as of this patch

if test "$upnp" = "true"; then
513
    AC_DEFINE(MINIUPNPC, 1, [Define to 1 if we are building with UPnP.])
514
515
516
517
518
519
520
521
522
523
524
    TOR_SEARCH_LIBRARY(libminiupnpc, $trylibminiupnpcdir, [-lminiupnpc],
        [#include <miniupnpc/miniwget.h>
         #include <miniupnpc/miniupnpc.h>
         #include <miniupnpc/upnpcommands.h>],
        [void upnpDiscover(int delay, const char * multicastif,
         const char * minissdpdsock, int sameport);],
        [upnpDiscover(1, 0, 0, 0); exit(0);],
        [--with-libminiupnpc-dir],
        [/usr/lib/])
fi

525
526
AC_SYS_LARGEFILE

527
528
529
530
531
532
533
534
535
536
537
538
539
AC_CHECK_HEADERS(
        assert.h \
        errno.h \
        fcntl.h \
        signal.h \
        string.h \
        sys/fcntl.h \
        sys/stat.h \
        sys/time.h \
        sys/types.h \
        time.h \
        unistd.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.))
540

541
542
dnl These headers are not essential

543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
AC_CHECK_HEADERS(
        arpa/inet.h \
        grp.h \
        inttypes.h \
        limits.h \
        linux/types.h \
        machine/limits.h \
        malloc.h \
        malloc/malloc.h \
        malloc_np.h \
        netdb.h \
        netinet/in.h \
        netinet/in6.h \
        pwd.h \
        stdint.h \
        sys/file.h \
        sys/ioctl.h \
        sys/limits.h \
        sys/mman.h \
        sys/param.h \
        sys/prctl.h \
        sys/resource.h \
        sys/socket.h \
        sys/syslimits.h \
        sys/time.h \
        sys/types.h \
        sys/un.h \
        sys/utime.h \
        sys/wait.h \
        syslog.h \
        utime.h
)
575

576
577
578
579
580
581
582
583
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])

584
AC_CHECK_HEADERS(net/if.h, net_if_found=1, net_if_found=0,
585
586
587
588
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
589
590
#include <sys/socket.h>
#endif])
591
AC_CHECK_HEADERS(net/pfvar.h, net_pfvar_found=1, net_pfvar_found=0,
592
593
594
595
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
596
#include <sys/socket.h>
597
598
599
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
600
#endif])
601
AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
602
        linux_netfilter_ipv4=1, linux_netfilter_ipv4=0,
603
604
605
606
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
607
#include <sys/socket.h>
608
#endif
609
610
611
612
613
614
615
616
617
#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
618
619
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
620
#endif])
621
622
623

if test x$transparent = xtrue ; then
   transparent_ok=0
624
   if test x$net_if_found = x1 && test x$net_pfvar_found = x1 ; then
625
626
627
628
629
     transparent_ok=1
   fi
   if test x$linux_netfilter_ipv4 = x1 ; then
     transparent_ok=1
   fi
630
   if test x$transparent_ok = x1 ; then
631
632
633
634
635
636
637
638
639
640
     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

641
642
643
644
645
646
647
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])
648

649
650
651
dnl In case we aren't given a working stdint.h, we'll need to grow our own.
dnl Watch out.

652
653
654
655
656
657
658
659
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)
660
661
AC_CHECK_SIZEOF(intptr_t)
AC_CHECK_SIZEOF(uintptr_t)
662

663
dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
664

665
666
667
668
669
670
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)
671
AC_CHECK_SIZEOF(void *)
672
AC_CHECK_SIZEOF(time_t)
673
AC_CHECK_SIZEOF(size_t)
674

675
AC_CHECK_TYPES([uint, u_char, ssize_t])
676

677
678
dnl used to include sockaddr_storage, but everybody has that.
AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
679
680
681
682
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
683
684
685
686
687
688
689
#include <netinet/in.h>
#endif
#ifdef HAVE_NETINET_IN6_H
#include <netinet/in6.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
690
691
692
693
694
695
696
697
698
699
700
701
702
#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
])
703
AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
[#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
])
728

729
AC_CHECK_TYPES([rlim_t], , ,
730
731
732
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
733
734
735
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
736
#ifdef HAVE_SYS_RESOURCE_H
737
738
739
740
#include <sys/resource.h>
#endif
])

741
AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
742
AC_RUN_IFELSE([AC_LANG_SOURCE([
743
744
745
746
747
748
749
750
751
#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
752
753
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, tor_cv_time_t_signed=cross)
754
])
755
756

if test "$tor_cv_time_t_signed" = cross; then
757
758
  AC_MSG_NOTICE([Cross compiling: assuming that time_t is signed.])
fi
759

760
if test "$tor_cv_time_t_signed" != no; then
761
762
763
764
  AC_DEFINE([TIME_T_IS_SIGNED], 1,
            [Define to 1 iff time_t is signed])
fi

765
766
767
768
769
AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])
770

771
772
773
774
# We want to make sure that we _don't_ have a cell_t defined, like IRIX does.

AC_CHECK_SIZEOF(cell_t)

775
776
777
778
# 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>
779
#include <string.h>
780
781
782
783
#include <stdio.h>
#ifdef HAVE_STDDEF_H
#include <stddef.h>
#endif
784
int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
785
return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
786
787
788
789
       [tor_cv_null_is_zero=yes],
       [tor_cv_null_is_zero=no],
       [tor_cv_null_is_zero=cross])])

790
if test "$tor_cv_null_is_zero" = cross ; then
791
792
793
794
  # 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

795
if test "$tor_cv_null_is_zero" != no; then
796
797
798
799
  AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
            [Define to 1 iff memset(0) sets pointers to NULL])
fi

800
801
802
803
804
805
806
807
808
809
810
811
812
813
# 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])])

814
if test "$tor_cv_malloc_zero_works" = cross; then
815
816
817
818
  # 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

819
if test "$tor_cv_malloc_zero_works" = yes; then
820
821
822
823
  AC_DEFINE([MALLOC_ZERO_WORKS], 1,
            [Define to 1 iff malloc(0) returns a pointer])
fi

824
825
826
827
828
829
830
831
832
# 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])])

833
if test "$tor_cv_twos_complement" = cross ; then
834
  # Cross-compiling; let's hope that the target isn't raving mad.
835
  AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
836
837
fi

838
if test "$tor_cv_twos_complement" != no ; then
839
840
841
842
  AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
            [Define to 1 iff we represent negative integers with two's complement])
fi

843
# Whether we should use the dmalloc memory allocation debugging library.
Roger Dingledine's avatar
Roger Dingledine committed
844
AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
845
AC_ARG_WITH(dmalloc,
846
[  --with-dmalloc          Use debug memory allocation library. ],
847
848
849
850
851
852
853
854
855
856
[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
857
  AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
858
  AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
859
860
  AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
861
  AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
862
863
fi

864
865
866
867
868
869
870
871
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

872
# By default, we're going to assume we don't have mlockall()
Nick Mathewson's avatar
Nick Mathewson committed
873
874
875
# 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.
876
AC_CHECK_FUNCS(mlockall)
Nick Mathewson's avatar
Nick Mathewson committed
877
878
879
880
AC_CHECK_DECLS([mlockall], , , [
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif])
881

882
883
884
885
886
887
888
# 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)

889
890
891
# Check if we have getresuid and getresgid
AC_CHECK_FUNCS(getresuid getresgid)

892
893
894
895
896
897
898
899
900
# 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 $MY_CFLAGS"
901
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
902
#include <netdb.h>
903
  ], [[
904
905
906
907
    char *cp1, *cp2;
    struct hostent *h1, *h2;
    int i1, i2;
    (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
908
  ]])],[
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
    AC_DEFINE(HAVE_GETHOSTBYNAME_R)
    AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
     [Define this if gethostbyname_r takes 6 arguments])
    AC_MSG_RESULT(6)
  ], [
    AC_TRY_COMPILE([
#include <netdb.h>
    ], [
      char *cp1, *cp2;
      struct hostent *h1;
      int i1, i2;
      (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
    ], [
      AC_DEFINE(HAVE_GETHOSTBYNAME_R)
      AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
        [Define this if gethostbyname_r takes 5 arguments])
      AC_MSG_RESULT(5)
   ], [
      AC_TRY_COMPILE([
#include <netdb.h>
     ], [
       char *cp1;
       struct hostent *h1;
       struct hostent_data hd;
       (void) gethostbyname_r(cp1,h1,&hd);
     ], [
       AC_DEFINE(HAVE_GETHOSTBYNAME_R)
       AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
         [Define this if gethostbyname_r takes 3 arguments])
       AC_MSG_RESULT(3)
     ], [
       AC_MSG_RESULT(0)
     ])
  ])
 ])
 CFLAGS=$OLD_CFLAGS
])

947
AC_CACHE_CHECK([whether the C compiler supports __func__],
948
  tor_cv_have_func_macro,
949
  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
950
#include <stdio.h>
951
int main(int c, char **v) { puts(__func__); }])],
952
953
  tor_cv_have_func_macro=yes,
  tor_cv_have_func_macro=no))
954
955

AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
956
  tor_cv_have_FUNC_macro,
957
  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
958
#include <stdio.h>
959
int main(int c, char **v) { puts(__FUNC__); }])],
960
961
  tor_cv_have_FUNC_macro=yes,
  tor_cv_have_FUNC_macro=no))
962
963

AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
964
  tor_cv_have_FUNCTION_macro,
965
  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
966
#include <stdio.h>
967
int main(int c, char **v) { puts(__FUNCTION__); }])],
968
969
  tor_cv_have_FUNCTION_macro=yes,
  tor_cv_have_FUNCTION_macro=no))
970

971
if test "$tor_cv_have_func_macro" = 'yes'; then
972
973
974
  AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
fi

975
if test "$tor_cv_have_FUNC_macro" = 'yes'; then
976
977
978
  AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
fi

979
if test "$tor_cv_have_FUNCTION_macro" = 'yes'; then
980
981
982
983
  AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
           [Defined if the compiler supports __FUNCTION__])
fi

984
985
986
987
988
989
990
991
992
993
994
995
# $prefix stores the value of the --prefix command line option, or
# NONE if the option wasn't set.  In the case that it wasn't set, make
# it be the default, so that we can use it to expand directories now.
if test "x$prefix" = "xNONE"; then
  prefix=$ac_default_prefix
fi

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

996
997
998
999
1000
1001
1002
if test "x$BUILDDIR" = "x"; then
  BUILDDIR=`pwd`
fi
AC_SUBST(BUILDDIR)
AH_TEMPLATE([BUILDDIR],[tor's build directory])
AC_DEFINE_UNQUOTED(BUILDDIR,"$BUILDDIR")

1003
1004
1005
if test "x$CONFDIR" = "x"; then
  CONFDIR=`eval echo $sysconfdir/tor`
fi
1006
AC_SUBST(CONFDIR)
1007
AH_TEMPLATE([CONFDIR],[tor's configuration directory])
1008
1009
AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")

1010
1011
1012
1013
1014
BINDIR=`eval echo $bindir`
AC_SUBST(BINDIR)
LOCALSTATEDIR=`eval echo $localstatedir`
AC_SUBST(LOCALSTATEDIR)

1015
1016
# Set CFLAGS _after_ all the above checks, since our warnings are stricter
# than autoconf's macros like.
1017
if test "$GCC" = yes; then
1018
  CFLAGS="$CFLAGS -Wall -g -O2"
1019
1020
1021
  # Disable GCC's strict aliasing checks.  They are an hours-to-debug
  # accident waiting to happen.
  CFLAGS="$CFLAGS -fno-strict-aliasing"
1022
1023
else
  CFLAGS="$CFLAGS -g -O"
1024
  enable_gcc_warnings=no
1025
  enable_gcc_warnings_advisory=no
1026
fi
1027

1028
# Add some more warnings which we use in development but not in the
1029
# released versions.  (Some relevant gcc versions can't handle these.)
1030
if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
1031

1032
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
1033
1034
#if !defined(__GNUC__) || (__GNUC__ < 4)
#error
1035
#endif])], have_gcc4=yes, have_gcc4=no)
1036

1037
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
1038
#if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
1039
#error
1040
#endif])], have_gcc42=yes, have_gcc42=no)
1041

1042
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
1043
1044
#if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
#error
1045
#endif])], have_gcc43=yes, have_gcc43=no)
1046

1047
1048
  save_CFLAGS="$CFLAGS"
  CFLAGS="$CFLAGS -Wshorten-64-to-32"
1049
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], have_shorten64_flag=yes,
1050
1051
1052
                    have_shorten64_flag=no)
  CFLAGS="$save_CFLAGS"

1053
1054
1055
1056
1057
1058
1059
1060
1061
  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

1062
1063
1064
1065
1066
1067
  CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith"
  CFLAGS="$CFLAGS -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings"
  CFLAGS="$CFLAGS -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2"
  CFLAGS="$CFLAGS -Wwrite-strings -Wmissing-declarations -Wredundant-decls"
  CFLAGS="$CFLAGS -Wnested-externs -Wbad-function-cast -Wswitch-enum"

1068
1069
1070
  if test x$enable_gcc_warnings = xyes; then
    CFLAGS="$CFLAGS -Werror"
  fi
1071

1072
  # Disabled, so we can use mallinfo(): -Waggregate-return
1073

1074
  if test x$have_gcc4 = xyes ; then
1075
1076
1077
    # These warnings break gcc 3.3.5 and work on gcc 4.0.2
    CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
  fi
1078

1079
  if test x$have_gcc42 = xyes ; then
1080
1081
    # These warnings break gcc 4.0.2 and work on gcc 4.2
    # XXXX020 See if any of these work with earlier versions.
1082
    CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wnormalized=id -Woverride-init -Wstrict-overflow=1"
1083
1084
1085
    # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
  fi

1086
  if test x$have_gcc43 = xyes ; then
1087
1088
1089
    # These warnings break gcc 4.2 and work on gcc 4.3
    # XXXX020 See if any of these work with earlier versions.
    CFLAGS="$CFLAGS -Wextra -Warray-bounds"
1090
1091
  fi

1092
1093
1094
1095
  if test x$have_shorten64_flag = xyes ; then
    CFLAGS="$CFLAGS -Wshorten-64-to-32"
  fi

1096
1097
##This will break the world on some 64-bit architectures
# CFLAGS="$CFLAGS -Winline"
1098
fi
1099

1100
1101


1102
1103
CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"

1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
AC_CONFIG_FILES([
        Doxyfile
        Makefile
        contrib/Makefile
        contrib/suse/Makefile
        contrib/suse/tor.sh
        contrib/tor.logrotate
        contrib/tor.sh
        contrib/torctl
        contrib/torify
        doc/Makefile
        doc/spec/Makefile
        src/Makefile
        src/common/Makefile
        src/config/Makefile
        src/config/torrc.sample
        src/or/Makefile
        src/test/Makefile
        src/tools/Makefile
        src/tools/tor-fw-helper/Makefile
        src/win32/Makefile
        tor.spec
])
1127

1128
AC_OUTPUT
1129
1130
1131
1132
1133

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