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, 0.1.1.9-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 $saved_CPPFLAGS" fi fi # Basic test to check for compatible version and correct linking # *does not* test for RSA - that comes later. AC_TRY_RUN( [ #include #include int main(void) { char a[2048]; memset(a, 0, sizeof(a)); RAND_add(a, sizeof(a), sizeof(a)); return(RAND_status() <= 0); } ], [ found_crypto=1 break; ], [] ) if test ! -z "$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 #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 #include #include #ifdef HAVE_STDDEF_H #include #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 $MY_CFLAGS" AC_TRY_COMPILE([ #include ], [ char *cp1, *cp2; struct hostent *h1, *h2; int i1, i2; (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2); ], [ AC_DEFINE(HAVE_GETHOSTBYNAME_R) AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1, [Define this if gethostbyname_r takes 6 arguments]) AC_MSG_RESULT(6) ], [ AC_TRY_COMPILE([ #include ], [ char *cp1, *cp2; struct hostent *h1; int i1, i2; (void)gethostbyname_r(cp1,h1,cp2,i1,&i2); ], [ AC_DEFINE(HAVE_GETHOSTBYNAME_R) AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1, [Define this if gethostbyname_r takes 5 arguments]) AC_MSG_RESULT(5) ], [ AC_TRY_COMPILE([ #include ], [ char *cp1; struct hostent *h1; struct hostent_data hd; (void) gethostbyname_r(cp1,h1,&hd); ], [ AC_DEFINE(HAVE_GETHOSTBYNAME_R) AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1, [Define this if gethostbyname_r takes 3 arguments]) AC_MSG_RESULT(3) ], [ AC_MSG_RESULT(0) ]) ]) ]) CFLAGS=$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