configure.in

   1 dnl $Id$
   2 dnl Copyright 2001-2004 Roger Dingledine
   3 dnl Copyright 2004-2005 Roger Dingledine, Nick Mathewson
   4 dnl See LICENSE for licensing information
   5
   6 AC_INIT
   7 AM_INIT_AUTOMAKE(tor, 0.1.0.3-rc-cvs)
   8 AM_CONFIG_HEADER(orconfig.h)
   9
  10 AC_CANONICAL_HOST
  11
  12 if test -f /etc/redhat-release; then
  13     CFLAGS="$CFLAGS -I/usr/kerberos/include"
  14 fi
  15
  16 AC_ARG_ENABLE(debug,
  17 [  --enable-debug          compiles with debugging info],
  18 [if test x$enableval = xyes; then
  19     CFLAGS="$CFLAGS -g"
  20 fi])
  21
  22 AC_PROG_CC
  23 AC_PROG_MAKE_SET
  24 AC_PROG_RANLIB
  25
  26 # The big search for OpenSSL
  27 # copied from openssh's configure.ac
  28 AC_ARG_WITH(ssl-dir,
  29         [  --with-ssl-dir=PATH     Specify path to OpenSSL installation ],
  30         [
  31                 if test "x$withval" != "xno" ; then
  32                         tryssldir=$withval
  33                 fi
  34         ]
  35 )
  36
  37 AC_SEARCH_LIBS(socket, [socket])
  38 AC_SEARCH_LIBS(gethostbyname, [nsl])
  39 AC_SEARCH_LIBS(pthread_create, [pthread])
  40 AC_SEARCH_LIBS(pthread_detach, [pthread])
  41 AC_SEARCH_LIBS(event_loop, [event], , AC_MSG_ERROR(Libevent library not found. Tor requires libevent to build.  You can get the latest version of libevent at http://www.monkey.org/~provos/libevent/ ))
  42
  43 saved_LIBS="$LIBS"
  44 saved_LDFLAGS="$LDFLAGS"
  45 saved_CPPFLAGS="$CPPFLAGS"
  46 if test "x$prefix" != "xNONE" ; then
  47         tryssldir="$tryssldir $prefix"
  48 fi
  49 AC_CACHE_CHECK([for OpenSSL directory], ac_cv_openssldir, [
  50         for ssldir in $tryssldir "" /usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /usr/pkg /opt /opt/openssl ; do
  51                 CPPFLAGS="$saved_CPPFLAGS"
  52                 LDFLAGS="$saved_LDFLAGS"
  53                 LIBS="$saved_LIBS -lssl -lcrypto"
  54
  55                 # Skip directories if they don't exist
  56                 if test ! -z "$ssldir" -a ! -d "$ssldir" ; then
  57                         continue;
  58                 fi
  59                 if test ! -z "$ssldir" -a "x$ssldir" != "x/usr"; then
  60                         # Try to use $ssldir/lib if it exists, otherwise
  61                         # $ssldir
  62                         if test -d "$ssldir/lib" ; then
  63                                 LDFLAGS="-L$ssldir/lib $saved_LDFLAGS"
  64                                 if test ! -z "$need_dash_r" ; then
  65                                         LDFLAGS="-R$ssldir/lib $LDFLAGS"
  66                                 fi
  67                         else
  68                                 LDFLAGS="-L$ssldir $saved_LDFLAGS"
  69                                 if test ! -z "$need_dash_r" ; then
  70                                         LDFLAGS="-R$ssldir $LDFLAGS"
  71                                 fi
  72                         fi
  73                         # Try to use $ssldir/include if it exists, otherwise
  74                         # $ssldir
  75                         if test -d "$ssldir/include" ; then
  76                                 CPPFLAGS="-I$ssldir/include $saved_CPPFLAGS"
  77                         else
  78                                 CPPFLAGS="-I$ssldir $saved_CPPFLAGS"
  79                         fi
  80                 fi
  81
  82                 # Basic test to check for compatible version and correct linking
  83                 # *does not* test for RSA - that comes later.
  84                 AC_TRY_RUN(
  85                         [
  86 #include <string.h>
  87 #include <openssl/rand.h>
  88 int main(void)
  89 {
  90         char a[2048];
  91         memset(a, 0, sizeof(a));
  92         RAND_add(a, sizeof(a), sizeof(a));
  93         return(RAND_status() <= 0);
  94 }
  95                         ],
  96                         [
  97                                 found_crypto=1
  98                                 break;
  99                         ], []
 100                 )
 101
 102                 if test ! -z "$found_crypto" ; then
 103                         break;
 104                 fi
 105         done
 106
 107         if test -z "$found_crypto" ; then
 108                 AC_MSG_ERROR([Could not find working OpenSSL library, please install or check config.log])
 109         fi
 110         if test -z "$ssldir" ; then
 111                 ssldir="(system)"
 112         fi
 113
 114         ac_cv_openssldir=$ssldir
 115 ])
 116 if (test ! -z "$ac_cv_openssldir" && test "x$ac_cv_openssldir" != "x(system)") ;
 117  then
 118         dnl Need to recover ssldir - test above runs in subshell
 119         ssldir=$ac_cv_openssldir
 120         if test ! -z "$ssldir" -a "x$ssldir" != "x/usr"; then
 121                 # Try to use $ssldir/lib if it exists, otherwise
 122                 # $ssldir
 123                 if test -d "$ssldir/lib" ; then
 124                         LDFLAGS="-L$ssldir/lib $saved_LDFLAGS"
 125                         if test ! -z "$need_dash_r" ; then
 126                                 LDFLAGS="-R$ssldir/lib $LDFLAGS"
 127                         fi
 128                 else
 129                         LDFLAGS="-L$ssldir $saved_LDFLAGS"
 130                         if test ! -z "$need_dash_r" ; then
 131                                 LDFLAGS="-R$ssldir $LDFLAGS"
 132                         fi
 133                 fi
 134                 # Try to use $ssldir/include if it exists, otherwise
 135                 # $ssldir
 136                 if test -d "$ssldir/include" ; then
 137                         CPPFLAGS="-I$ssldir/include $saved_CPPFLAGS"
 138                 else
 139                         CPPFLAGS="-I$ssldir $saved_CPPFLAGS"
 140                 fi
 141         fi
 142 fi
 143 LIBS="$saved_LIBS"
 144
 145 AC_SYS_LARGEFILE
 146
 147 dnl The warning message here is no longer strictly accurate.
 148
 149 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))
 150
 151 AC_CHECK_HEADERS(event.h, , AC_MSG_ERROR(Libevent header (event.h) not found. Tor requires libevent to build.))
 152
 153 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.))
 154
 155 dnl These headers are not essential
 156
 157 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 pthread.h stddef.h inttypes.h)
 158
 159 AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit setrlimit strlcat strlcpy strtoull getpwnam ftello pthread_create getaddrinfo localtime_r gmtime_r event_get_version event_get_method event_set_log_callback)
 160 AC_FUNC_FSEEKO
 161
 162 AC_CHECK_MEMBERS([struct timeval.tv_sec])
 163
 164
 165 dnl In case we aren't given a working stdint.h, we'll need to grow our own.
 166 dnl Watch out.
 167
 168 AC_CHECK_SIZEOF(int8_t)
 169 AC_CHECK_SIZEOF(int16_t)
 170 AC_CHECK_SIZEOF(int32_t)
 171 AC_CHECK_SIZEOF(int64_t)
 172 AC_CHECK_SIZEOF(uint8_t)
 173 AC_CHECK_SIZEOF(uint16_t)
 174 AC_CHECK_SIZEOF(uint32_t)
 175 AC_CHECK_SIZEOF(uint64_t)
 176 AC_CHECK_SIZEOF(intptr_t)
 177 AC_CHECK_SIZEOF(uintptr_t)
 178
 179 dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
 180
 181 AC_CHECK_SIZEOF(char)
 182 AC_CHECK_SIZEOF(short)
 183 AC_CHECK_SIZEOF(int)
 184 AC_CHECK_SIZEOF(long)
 185 AC_CHECK_SIZEOF(long long)
 186 AC_CHECK_SIZEOF(__int64)
 187 AC_CHECK_SIZEOF(void *)
 188 AC_CHECK_SIZEOF(time_t)
 189
 190 # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
 191
 192 AC_CHECK_SIZEOF(cell_t)
 193
 194 # Now, let's see about alignment requirements.  On some platforms, we override
 195 # the default.
 196 case $host in
 197  ia64-*-* | arm-*-* )
 198     tor_cv_unaligned_ok=no
 199     ;;
 200  *)
 201 AC_CACHE_CHECK([whether unaligned int access is allowed], tor_cv_unaligned_ok,
 202 [AC_RUN_IFELSE([AC_LANG_SOURCE(
 203 [[int main () { char s[] = "A\x00\x00\x00\x00\x00\x00\x00";
 204 return *(int*)(&s[1]); }]])],
 205        [tor_cv_unaligned_ok=yes],
 206        [tor_cv_unaligned_ok=no],
 207        [tor_cv_unaligned_ok=cross])])
 208 esac
 209
 210 if test $tor_cv_unaligned_ok = yes; then
 211   AC_DEFINE([UNALIGNED_INT_ACCESS_OK], 1,
 212             [Define to 1 iff unaligned int access is allowed])
 213 fi
 214
 215 # Now make sure that NULL can be represented as zero bytes.
 216 AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
 217 [AC_RUN_IFELSE([AC_LANG_SOURCE(
 218 [[#include <stdlib.h>
 219 #include <string.h>
 220 #include <stdio.h>
 221 #ifdef HAVE_STDDEF_H
 222 #include <stddef.h>
 223 #endif
 224 int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
 225 return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
 226        [tor_cv_null_is_zero=yes],
 227        [tor_cv_null_is_zero=no],
 228        [tor_cv_null_is_zero=cross])])
 229
 230 if test $tor_cv_null_is_zero = yes; then
 231   AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
 232             [Define to 1 iff memset(0) sets pointers to NULL])
 233 fi
 234
 235 # Whether we should use the dmalloc memory allocation debugging library.
 236 AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
 237 AC_ARG_WITH(dmalloc,
 238 [  --with-dmalloc          Use debug memory allocation library. ],
 239 [if [[ "$withval" = "yes" ]]; then
 240   dmalloc=1
 241   AC_MSG_RESULT(yes)
 242 else
 243   dmalloc=1
 244   AC_MSG_RESULT(no)
 245 fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
 246 )
 247
 248 if [[ $dmalloc -eq 1 ]]; then
 249   AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
 250   AC_SEARCH_LIBS(dmalloc_malloc, [dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
 251   AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
 252   AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
 253 fi
 254
 255 # Check for gethostbyname_r in all its glorious incompatible versions.
 256 #   (This logic is based on that in Python's configure.in)
 257 AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
 258   [Define this if you have any gethostbyname_r()])
 259
 260 AC_CHECK_FUNC(gethostbyname_r, [
 261   AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
 262   OLD_CFLAGS=$CFLAGS
 263   CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
 264   AC_TRY_COMPILE([
 265 #include <netdb.h>
 266   ], [
 267     char *cp1, *cp2;
 268     struct hostent *h1, *h2;
 269     int i1, i2;
 270     (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
 271   ], [
 272     AC_DEFINE(HAVE_GETHOSTBYNAME_R)
 273     AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
 274      [Define this if gethostbyname_r takes 6 arguments])
 275     AC_MSG_RESULT(6)
 276   ], [
 277     AC_TRY_COMPILE([
 278 #include <netdb.h>
 279     ], [
 280       char *cp1, *cp2;
 281       struct hostent *h1;
 282       int i1, i2;
 283       (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
 284     ], [
 285       AC_DEFINE(HAVE_GETHOSTBYNAME_R)
 286       AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
 287         [Define this if gethostbyname_r takes 5 arguments])
 288       AC_MSG_RESULT(5)
 289    ], [
 290       AC_TRY_COMPILE([
 291 #include <netdb.h>
 292      ], [
 293        char *cp1;
 294        struct hostent *h1;
 295        struct hostent_data hd;
 296        (void) gethostbyname_r(cp1,h1,&hd);
 297      ], [
 298        AC_DEFINE(HAVE_GETHOSTBYNAME_R)
 299        AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
 300          [Define this if gethostbyname_r takes 3 arguments])
 301        AC_MSG_RESULT(3)
 302      ], [
 303        AC_MSG_RESULT(0)
 304      ])
 305   ])
 306  ])
 307  CFLAGS=$OLD_CFLAGS
 308 ])
 309
 310 # $prefix stores the value of the --prefix command line option, or
 311 # NONE if the option wasn't set.  In the case that it wasn't set, make
 312 # it be the default, so that we can use it to expand directories now.
 313 if test "x$prefix" = "xNONE"; then
 314   prefix=$ac_default_prefix
 315 fi
 316
 317 # and similarly for $exec_prefix
 318 if test "x$exec_prefix" = "xNONE"; then
 319   exec_prefix=$prefix
 320 fi
 321
 322 CONFDIR=`eval echo $sysconfdir/tor`
 323 AC_SUBST(CONFDIR)
 324 AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
 325 AC_DEFINE([CONFDIR], [], [tor's configuration directory])
 326
 327 BINDIR=`eval echo $bindir`
 328 AC_SUBST(BINDIR)
 329
 330 LOCALSTATEDIR=`eval echo $localstatedir`
 331 AC_SUBST(LOCALSTATEDIR)
 332
 333 # Set CFLAGS _after_ all the above checks, since our warnings are stricter
 334 # than autoconf's macros like.
 335 CFLAGS="$CFLAGS -Wall -g -O2"
 336 # Add some more warnings which we use in the cvs version but not in the
 337 # released versions.  (Some relevant gcc versions can't handle these.)
 338 #CFLAGS="$CFLAGS -W -Wno-unused-parameter -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls"
 339 # Add these in when you feel like fun.
 340 #CFLAGS="$CFLAGS -Wbad-function-cast -Werror -Wdeclaration-after-statement"
 341
 342 echo "confdir: $CONFDIR"
 343
 344 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 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)
 345
 346 if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
 347   ./contrib/updateVersions.pl
 348 fi
 349