aboutsummaryrefslogtreecommitdiff
path: root/configure.in
blob: a3865ba6e50e0ff8e388540f58d648302ba7e79c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
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
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
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
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
dnl $Id$
dnl Copyright 2001-2004 Roger Dingledine
dnl Copyright 2004-2005 Roger Dingledine, Nick Mathewson
dnl See LICENSE for licensing information

AC_INIT
AM_INIT_AUTOMAKE(tor, 0.1.1.8-alpha-cvs)
AM_CONFIG_HEADER(orconfig.h)

AC_CANONICAL_HOST

if test -f /etc/redhat-release; then
    CFLAGS="$CFLAGS -I/usr/kerberos/include"
fi

AC_ARG_ENABLE(debug,
 AC_HELP_STRING(--enable-debug, compile with debugging info),
[if test x$enableval = xyes; then
    CFLAGS="$CFLAGS -g"
fi])

AC_ARG_ENABLE(threads,
     AC_HELP_STRING(--disable-threads, disable multi-threading support))

if test x$enable_threads = x; then
   case $host in
    *-*-netbsd* | *-*-openbsd* )
     # Don't try multithreading on netbsd -- there is no threadsafe DNS
     # lookup function there.
     AC_MSG_NOTICE([You are running OpenBSD or NetBSD; I am assuming that
getaddrinfo is not threadsafe here, so I will disable threads.])
     enable_threads="no";;
    *-*-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";;
    *)
     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

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

AC_PROG_CC
AC_PROG_MAKE_SET
AC_PROG_RANLIB

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

AC_SEARCH_LIBS(socket, [socket])
AC_SEARCH_LIBS(gethostbyname, [nsl])

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

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


# Step 1. Try to link and run a program using libevent.  If it works,
#         great!  Just add -levent.
AC_CACHE_CHECK([for a normal libevent], ac_cv_libevent_normal, [
   saved_LIBS="$LIBS"
   LIBS="$LIBS -levent"
   AC_TRY_RUN([
void *event_init(void);
int main(void)
{
	event_init();
        return 0;
}], ac_cv_libevent_normal=yes, ac_cv_libevent_normal=no)
   LIBS="$saved_LIBS"
])

if test "$ac_cv_libevent_normal" = yes; then
  LIBS="$LIBS -levent"
else
  AC_CACHE_CHECK([for libevent in /usr/local/lib], ac_cv_libevent_local, [
     saved_LIBS="$LIBS"
     saved_LDFLAGS="$LDFLAGS"  
     LIBS="$LIBS -levent"
     LDFLAGS="$LDFLAGS -L/usr/local/lib"
     # Step 2.  Otherwise, check whether adding -L/usr/local/lib allows
     #          us to link.  If not, assume we have no libevent at all.
     AC_TRY_LINK([], [ void *event_init(void); event_init(); ],
        [ libevent_is_in_local=yes ], [ libevent_is_in_local=no ])
     if test $libevent_is_in_local = no ; then
       ac_cv_libevent_local=no   
     else
       # Step 3.  Does adding -L/usr/local/lib allow us to run, too?
       #          If so, all we have to do as adjust LDFLAGS and CFLAGS.
       AC_TRY_RUN([
void *event_init(void);
int main(void)
{
	event_init();
        return 0;
}], [ ac_cv_libevent_local=yes ], [ ac_cv_libevent_local=unlinked ])
    fi
    if test "$GCC" = yes -a $ac_cv_libevent_local = unlinked ; then
       # Step 4.  Okay, so we can link but not run.  This probably means
       #          that the dynamic linker doesn't have /usr/local/lib in
       #          its search path.  If we're lucky enough to be running
       #          GCC on an ELF system, we might have a workaround for that.
       #          See whether -Wl,-R/usr/local/lib makes things better.
       LDFLAGS="$LDFLAGS -Wl,-R/usr/local/lib"
       AC_TRY_RUN([
void *event_init(void);
int main(void)
{
	event_init();
        return 0;
}], [ ac_cv_libevent_local=unlinked_gcc_elf ])
    fi 

    LIBS="$saved_LIBS"
    LDFLAGS="$saved_LDFLAGS" ])

  # Now we're done.  ac_vc_libevent_local could be:
  #    yes -- Add -L/usr/local/lib and we can link fine.
  #    unlinked_gcc_elf -- We can link, but we need to use the GCC-ELF
  #        workaround.  Complain a little.
  #    unlinked -- We can link, but we can't run.  Complain a lot.
  #    no -- we can't link at all.  Give an error and die.

  if test $ac_cv_libevent_local != no; then
      LIBS="$LIBS -levent"
      LDFLAGS="$LDFLAGS -L/usr/local/lib"
      CPPFLAGS="$CPPFLAGS -I/usr/local/include"
  fi
  if test $ac_cv_libevent_local = unlinked_gcc_elf; then
      LDFLAGS="$LDFLAGS -Wl,-R/usr/local/lib"
      if test -f /etc/ld.so.conf ; then
        AC_MSG_NOTICE([
Apparently, you don't have /usr/local/lib in your /etc/ld.so.conf.
Tor is smart enought to deal this now, but other applications aren't.
You might want to add it in.])
      fi
  fi

  if test $ac_cv_libevent_local = unlinked ; then
    if test -f /etc/ld.so.conf ; then
      AC_MSG_NOTICE([
=================================================
Your libevent library is installed in /usr/local/lib,
but your dynamic linker isn't configured to look for
it there.

Maybe you need to add /usr/local/lib to /etc/ld.so.conf,
and then run ldconfig -v ?
=================================================])
    else
      AC_MSG_NOTICE([
=================================================
Your libevent library is installed in /usr/local/lib,
but your dynamic linker isn't configured to look for
it there.
=================================================])
    fi 
  fi

  if test $ac_cv_libevent_local = no ; then
      AC_MSG_ERROR([
Tor requires libevent to build.  You can download the latest
version of libevent from http://monkey.org/~provos/libevent/])
  fi

fi

dnl ------------------------------------------------------
dnl Where do you live, OpenSSL?

saved_LIBS="$LIBS"
saved_LDFLAGS="$LDFLAGS"
saved_CPPFLAGS="$CPPFLAGS"
if test "x$prefix" != "xNONE" ; then
        tryssldir="$tryssldir $prefix"
fi
AC_CACHE_CHECK([for OpenSSL directory], ac_cv_openssldir, [
        for ssldir in $tryssldir "" /usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /usr/pkg /opt /opt/openssl ; do
                CPPFLAGS="$saved_CPPFLAGS"
                LDFLAGS="$saved_LDFLAGS"
                LIBS="$saved_LIBS -lssl -lcrypto"

                # Skip directories if they don't exist
                if test ! -z "$ssldir" -a ! -d "$ssldir" ; then
                        continue;
                fi
                if test ! -z "$ssldir" -a "x$ssldir" != "x/usr"; then
                        # Try to use $ssldir/lib if it exists, otherwise
                        # $ssldir
                        if test -d "$ssldir/lib" ; then
                                LDFLAGS="-L$ssldir/lib $saved_LDFLAGS"
                                if test ! -z "$need_dash_r" ; then
                                        LDFLAGS="-R$ssldir/lib $LDFLAGS"
                                fi
                        else
                                LDFLAGS="-L$ssldir $saved_LDFLAGS"
                                if test ! -z "$need_dash_r" ; then
                                        LDFLAGS="-R$ssldir $LDFLAGS"
                                fi
                        fi
                        # Try to use $ssldir/include if it exists, otherwise
                        # $ssldir
                        if test -d "$ssldir/include" ; then
                                CPPFLAGS="-I$ssldir/include $saved_CPPFLAGS"
                        else
                                CPPFLAGS="-I$ssldir $saved_CPPFLAGS"
                        fi
                fi

                # Basic test to check for compatible version and correct linking
                # *does not* test for RSA - that comes later.
                AC_TRY_RUN(
                        [
#include <string.h>
#include <openssl/rand.h>
int main(void)
{
        char a[2048];
        memset(a, 0, sizeof(a));
        RAND_add(a, sizeof(a), sizeof(a));
        return(RAND_status() <= 0);
}
                        ],
                        [
                                found_crypto=1
                                break;
                        ], []
                )

                if test ! -z "$found_crypto" ; then
                        break;
                fi
        done

        if test -z "$found_crypto" ; then
                AC_MSG_ERROR([Could not find working OpenSSL library, please install or check config.log])
        fi
        if test -z "$ssldir" ; then
                ssldir="(system)"
        fi

        ac_cv_openssldir=$ssldir
])
if (test ! -z "$ac_cv_openssldir" && test "x$ac_cv_openssldir" != "x(system)") ;
 then
        dnl Need to recover ssldir - test above runs in subshell
        ssldir=$ac_cv_openssldir
        if test ! -z "$ssldir" -a "x$ssldir" != "x/usr"; then
                # Try to use $ssldir/lib if it exists, otherwise
                # $ssldir
                if test -d "$ssldir/lib" ; then
                        LDFLAGS="-L$ssldir/lib $saved_LDFLAGS"
                        if test ! -z "$need_dash_r" ; then
                                LDFLAGS="-R$ssldir/lib $LDFLAGS"
                        fi
                else
                        LDFLAGS="-L$ssldir $saved_LDFLAGS"
                        if test ! -z "$need_dash_r" ; then
                                LDFLAGS="-R$ssldir $LDFLAGS"
                        fi
                fi
                # Try to use $ssldir/include if it exists, otherwise
                # $ssldir
                if test -d "$ssldir/include" ; then
                        CPPFLAGS="-I$ssldir/include $saved_CPPFLAGS"
                else
                        CPPFLAGS="-I$ssldir $saved_CPPFLAGS"
                fi
        fi
fi
LIBS="$saved_LIBS"

AC_SYS_LARGEFILE

dnl The warning message here is no longer strictly accurate.

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))

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

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.))

dnl These headers are not essential

AC_CHECK_HEADERS(stdint.h sys/types.h inttypes.h sys/param.h sys/wait.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)

AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit setrlimit strlcat strlcpy strtoull getpwnam ftello getaddrinfo localtime_r gmtime_r event_get_version event_get_method event_set_log_callback memmem)

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

AC_FUNC_FSEEKO

AC_CHECK_MEMBERS([struct timeval.tv_sec])

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

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)
AC_CHECK_SIZEOF(intptr_t)
AC_CHECK_SIZEOF(uintptr_t)

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

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)
AC_CHECK_SIZEOF(void *)
AC_CHECK_SIZEOF(time_t)
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)
])

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

AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])

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

AC_CHECK_SIZEOF(cell_t)

# Now, let's see about alignment requirements.  On some platforms, we override
# the default.
case $host in
 ia64-*-* | arm-*-* | sparc-*-* | sparc64-*-* )
    tor_cv_unaligned_ok=no
    ;;
 # On the following architectures unaligned access works, but is not done in
 # hardware.  This means that when you try to do unaligned access the kernel
 # gets to sort out an exception and then work around to somehow make your
 # reqest work, which is quite expensive.  Therefore it's probably better to
 # not even do it.
 alpha-*-* | mips-*-* | mipsel-*-* )
    tor_cv_unaligned_ok=no
    ;;
 *)
AC_CACHE_CHECK([whether unaligned int access is allowed], tor_cv_unaligned_ok,
[AC_RUN_IFELSE([AC_LANG_SOURCE(
[[int main () { char s[] = "A\x00\x00\x00\x00\x00\x00\x00";
return *(int*)(&s[1]); }]])],
       [tor_cv_unaligned_ok=yes],
       [tor_cv_unaligned_ok=no],
       [tor_cv_unaligned_ok=cross])])
esac

if test $tor_cv_unaligned_ok = yes; then
  AC_DEFINE([UNALIGNED_INT_ACCESS_OK], 1,
            [Define to 1 iff unaligned int access is allowed])
fi

# 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>
#include <string.h>
#include <stdio.h>
#ifdef HAVE_STDDEF_H
#include <stddef.h>
#endif
int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
       [tor_cv_null_is_zero=yes],
       [tor_cv_null_is_zero=no],
       [tor_cv_null_is_zero=cross])])

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

# Whether we should use the dmalloc memory allocation debugging library.
AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
AC_ARG_WITH(dmalloc,
[  --with-dmalloc          Use debug memory allocation library. ],
[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
  AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
  AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
  AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
  AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
fi

# 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
])

# $prefix stores the value of the --prefix command line option, or
# NONE if the option wasn't set.  In the case that it wasn't set, make
# it be the default, so that we can use it to expand directories now.
if test "x$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 $sysconfdir/tor`
AC_SUBST(CONFDIR)
AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
AC_DEFINE([CONFDIR], [], [tor's configuration directory])

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

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

# Set CFLAGS _after_ all the above checks, since our warnings are stricter
# than autoconf's macros like.
CFLAGS="$CFLAGS -Wall -g -O2"
# Add some more warnings which we use in the cvs version but not in the
# released versions.  (Some relevant gcc versions can't handle these.)
#CFLAGS="$CFLAGS -W -Wno-unused-parameter -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"
# Add these in when you feel like fun.
#CFLAGS="$CFLAGS -Wbad-function-cast -Werror -Wdeclaration-after-statement -Wold-style-definition"

echo "confdir: $CONFDIR"

AC_OUTPUT(Makefile tor.spec contrib/tor.sh contrib/torctl contrib/torify 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)

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