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0e44371a33
tor/configure.in
Nick Mathewson 0e44371a33 r11596@catbus: nickm | 2007-01-30 01:43:40 -0500 
Macro-ize our "search for a library and find out how to link against it" code.  This will help make our handling of libevent and openssl more similar, and with any luck better.  Not pushing to main branch until after 0.1.2.


svn:r9726
2007-03-04 19:47:34 +00:00

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dnl $Id$
dnl Copyright (c) 2001-2004, Roger Dingledine
dnl Copyright (c) 2004-2007, Roger Dingledine, Nick Mathewson
dnl See LICENSE for licensing information
AC_INIT
AM_INIT_AUTOMAKE(tor, 0.1.2.9-rc-dev)
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="$CFLAGS -g"
fi])
AC_ARG_ENABLE(eventdns,
AC_HELP_STRING(--enable-eventdns, enable asynchronous dns module),
[case "${enableval}" in
yes) eventdns=true ;;
no) eventdns=false ;;
*) AC_MSG_ERROR(bad value for --enable-eventdns) ;;
esac], [eventdns=true])
AM_CONDITIONAL(EVENTDNS, test x$eventdns = xtrue)
if test x$eventdns = xtrue; then
AC_DEFINE([USE_EVENTDNS], 1, "Define to 1 if we'll be using eventdns.c")
fi
AC_ARG_ENABLE(transparent,
AC_HELP_STRING(--disable-transparent, disable transparent proxy support),
[case "${enableval}" in
yes) transparent=true ;;
no) transparent=false ;;
*) AC_MSG_ERROR(bad value for --enable-transparent) ;;
esac], [transparent=true])
AC_ARG_ENABLE(threads,
AC_HELP_STRING(--disable-threads, disable multi-threading support))
if test x$enable_threads = x; then
case $host in
*-*-netbsd* | *-*-openbsd* )
# Don't try multithreading on netbsd -- there is no threadsafe DNS
# lookup function there.
if test x$eventdns != xtrue; then
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"
fi ;;
*-*-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 $host in
*-*-solaris* )
AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
;;
esac
AC_ARG_ENABLE(gcc-warnings,
AC_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
AC_PROG_CC
AC_PROG_MAKE_SET
AC_PROG_RANLIB
# The big search for OpenSSL
# copied from openssh's configure.ac
tryssldir=""
AC_ARG_WITH(ssl-dir,
[ --with-ssl-dir=PATH Specify path to OpenSSL installation ],
[
if test "x$withval" != "xno" ; then
tryssldir=$withval
fi
]
)
trylibeventdir=""
AC_ARG_WITH(libevent-dir,
[ --with-libevent-dir=PATH Specify path to Libevent installation ],
[
if test "x$withval" != "xno" ; then
trylibeventdir=$withval
fi
]
)
TORUSER=_tor
AC_ARG_WITH(tor-user,
[ --with-tor-user=NAME Specify username for tor daemon ],
[
TORUSER=$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)
dnl If WIN32 is defined and non-zero, we are building for win32
AC_MSG_CHECKING([for win32])
AC_RUN_IFELSE([
int main(int c, char **v) {
#ifdef WIN32
#if WIN32
return 0;
#else
return 1;
#endif
#else
return 2;
#endif
}],
bwin32=true; AC_MSG_RESULT([yes]),
bwin32=false; AC_MSG_RESULT([no]),
bwin32=cross; AC_MSG_RESULT([cross])
)
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
if test $bwin32 = true; then
AC_DEFINE(MS_WINDOWS, 1, [Define to 1 if we are building for Windows.])
fi
dnl Enable C99 when compiling with MIPSpro
AC_MSG_CHECKING([for MIPSpro compiler])
AC_TRY_COMPILE([], [
#if (defined(__sgi) && defined(_COMPILER_VERSION))
#error
return x(y);
#endif
],
bmipspro=false; AC_MSG_RESULT([no]),
bmipspro=true; AC_MSG_RESULT([yes]))
if test $bmipspro = true; then
CFLAGS="$CFLAGS -c99"
fi
AC_SEARCH_LIBS(socket, [socket])
AC_SEARCH_LIBS(gethostbyname, [nsl])
AC_SEARCH_LIBS(dlopen, [dl])
AC_SEARCH_LIBS(inet_aton, [resolv])
if test $enable_threads = "yes"; then
AC_SEARCH_LIBS(pthread_create, [pthread])
AC_SEARCH_LIBS(pthread_detach, [pthread])
fi
dnl -------------------------------------------------------------------
dnl Check for functions before libevent, since libevent-1.2 apparently
dnl exports strlcpy without defining it in a header.
AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit strlcat strlcpy strtoull ftello getaddrinfo localtime_r gmtime_r memmem strtok_r)
if test $enable_threads = "yes"; then
AC_CHECK_HEADERS(pthread.h)
AC_CHECK_FUNCS(pthread_create)
fi
dnl ------------------------------------------------------
dnl Where do you live, libevent? And how do we call you?
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)
TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $WS32lib], [
#include <sys/time.h>
#include <sys/types.h>
#include <event.h>], [void *event_init(void);],
[event_init(); exit(0);], [--with-libevent-dir])
dnl Now check for particular libevent functions.
AC_CHECK_FUNCS(event_get_version event_get_method event_set_log_callback)
dnl ------------------------------------------------------
dnl Where do you live, openssl? And how do we call you?
AC_CACHE_CHECK([for OpenSSL directory], tor_cv_openssl_dir, [
saved_LIBS="$LIBS"
saved_LDFLAGS="$LDFLAGS"
saved_CPPFLAGS="$CPPFLAGS"
ssl_found=no
for ssldir in $tryssldir "" $prefix /usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /usr/pkg /opt /opt/openssl ; do
LDFLAGS="$saved_LDFLAGS"
if test $bwin32 = true; then
LIBS="$saved_LIBS -lssl -lcrypto -lws2_32 -lgdi32"
else
LIBS="$saved_LIBS -lssl -lcrypto"
fi
# Skip the directory if it isn't there.
if test ! -z "$ssldir" -a ! -d "$ssldir" ; then
continue;
fi
if test ! -z "$ssldir" ; then
if test -d "$ssldir/lib" ; then
LDFLAGS="-L$ssldir/lib $LDFLAGS"
else
LDFLAGS="-L$ssldir $LDFLAGS"
fi
if test -d "$ssldir/include" ; then
CPPFLAGS="-I$ssldir/include $CPPFLAGS"
else
CPPFLAGS="-I$ssldir $CPPFLAGS"
fi
fi
# Can I link it?
AC_TRY_LINK([#include <openssl/rand.h>],
[ RAND_add((void*)0,0,0); ],
[ openssl_linked=yes ], [ openssl_linked=no ])
if test $openssl_linked = yes; then
if test ! -z "$ssldir" ; then
tor_cv_openssl_dir=$ssldir
else
tor_cv_openssl_dir="(system)"
fi
ssl_found=yes
break
fi
done
LIBS="$saved_LIBS"
LDFLAGS="$saved_LDFLAGS"
CPPFLAGS="$saved_CPPFLAGS"
if test $ssl_found = no ; then
AC_MSG_ERROR([Could not find a linkable OpenSSL. You can specify an explicit path using --with-ssl-dir])
fi
])
if test $bwin32 = true; then
LIBS="$LIBS -lssl -lcrypto -lws2_32 -lgdi32"
else
LIBS="$LIBS -lssl -lcrypto"
fi
if test "$tor_cv_openssl_dir" != "(system)"; then
if test -d "$tor_cv_openssl_dir/lib" ; then
LDFLAGS="-L$tor_cv_openssl_dir/lib $LDFLAGS"
ssl_libdir="$tor_cv_openssl_dir/lib"
else
LDFLAGS="-L$tor_cv_openssl_dir $LDFLAGS"
ssl_libdir="$tor_cv_openssl_dir"
fi
if test -d "$tor_cv_openssl_dir/include" ; then
CPPFLAGS="-I$tor_cv_openssl_dir/include $CPPFLAGS"
else
CPPFLAGS="-I$tor_cv_openssl_dir $CPPFLAGS"
fi
fi
if test -z "$CROSS_COMPILE"
then
AC_CACHE_CHECK([whether we need extra options to link OpenSSL],
tor_cv_openssl_linker_option, [
saved_LDFLAGS="$LDFLAGS"
ssl_runs=no
linked_with=nothing
for ssl_extra in "" "-Wl,-R$ssl_libdir" "-R$ssl_libdir" ; do
LDFLAGS="$ssl_extra $saved_LDFLAGS"
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);
}
],
openssl_runs=yes, openssl_runs=no, openssl_runs=cross)
if test $openssl_runs != no ; then
if test "$linked_with" = nothing; then
linked_with="$ssl_extra"
fi
AC_TRY_RUN([
#include <openssl/opensslv.h>
#include <openssl/crypto.h>
int main(void) {
return (OPENSSL_VERSION_NUMBER == SSLeay()) == 0;
}],
right_version=yes, right_version=no)
if test "$right_version" = yes; then
if test -z "$ssl_extra" ; then
tor_cv_openssl_linker_option='(none)'
else
tor_cv_openssl_linker_option=$ssl_extra
fi
ssl_runs=yes
break
fi
fi
done
if test $ssl_runs = no ; then
if test "$linked_with" = 'nothing' ; then
AC_MSG_ERROR([Found linkable OpenSSL in $tor_cv_openssl_dir, but it doesn't run, even with -R. Maybe specify another using --with-ssl-dir?])
else
if test -z "$linked_with" ; then
tor_cv_openssl_linker_option='(none)'
else
tor_cv_openssl_linker_option=$linked_with
fi
AC_MSG_WARN([I managed to make OpenSSL link and run, but I couldn't make it link against the same version I found header files for.])
fi
fi
LDFLAGS="$saved_LDFLAGS"
])
if test "$tor_cv_openssl_linker_option" != '(none)' ; then
LDFLAGS="$tor_cv_openssl_linker_option $LDFLAGS"
fi
fi
dnl Make sure to enable support for large off_t if avalable.
AC_SYS_LARGEFILE
dnl The warning message here is no longer strictly accurate.
AC_CHECK_HEADERS(unistd.h string.h signal.h ctype.h sys/stat.h sys/types.h fcntl.h sys/fcntl.h sys/time.h errno.h assert.h time.h, , AC_MSG_WARN(some headers were not found, compilation may fail))
AC_CHECK_HEADERS(netdb.h sys/ioctl.h sys/socket.h arpa/inet.h netinet/in.h pwd.h grp.h)
AC_CHECK_HEADERS(event.h, , AC_MSG_ERROR(Libevent header (event.h) not found. Tor requires libevent to build.),
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#else
struct timeval {
long tv_sec;
long tv_usec;
};
#endif])
AC_CHECK_HEADERS(zlib.h, , AC_MSG_ERROR(Zlib header (zlib.h) not found. Tor requires zlib to build. You may need to install a zlib development package.))
dnl These headers are not essential
AC_CHECK_HEADERS(stdint.h sys/types.h inttypes.h sys/param.h sys/wait.h limits.h sys/limits.h netinet/in.h arpa/inet.h machine/limits.h syslog.h sys/time.h sys/resource.h inttypes.h utime.h sys/utime.h sys/mman.h netintet/in.h netinet/in6.h)
AC_CHECK_HEADERS(net/if.h, [net_if_found=1], [net_if_found=0],
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif])
AC_CHECK_HEADERS(net/pfvar.h, [net_pfvar_found=1], [net_pfvar_found=0],
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif])
AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
[linux_netfilter_ipv4=1], [linux_netfilter_ipv4=0],
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif])
if test x$transparent = xtrue ; then
transparent_ok=0
if test x$net_if_found = x1 -a x$net_pfvar_found = x1 ; then
transparent_ok=1
fi
if test x$linux_netfilter_ipv4 = x1 ; then
transparent_ok=1
fi
if test x$transparent_ok = x1 ; then
AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
case $host in
*-*-openbsd*)
AC_DEFINE(OPENBSD, 1, "Define to handle pf on OpenBSD properly") ;;
esac
else
AC_MSG_NOTICE([Transparent proxy support enabled, but missing headers.])
fi
fi
AC_FUNC_FSEEKO
AC_CHECK_MEMBERS([struct timeval.tv_sec], , ,
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif])
dnl In case we aren't given a working stdint.h, we'll need to grow our own.
dnl Watch out.
AC_CHECK_SIZEOF(int8_t)
AC_CHECK_SIZEOF(int16_t)
AC_CHECK_SIZEOF(int32_t)
AC_CHECK_SIZEOF(int64_t)
AC_CHECK_SIZEOF(uint8_t)
AC_CHECK_SIZEOF(uint16_t)
AC_CHECK_SIZEOF(uint32_t)
AC_CHECK_SIZEOF(uint64_t)
AC_CHECK_SIZEOF(intptr_t)
AC_CHECK_SIZEOF(uintptr_t)
dnl AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t, uintptr_t])
AC_CHECK_SIZEOF(char)
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(long long)
AC_CHECK_SIZEOF(__int64)
AC_CHECK_SIZEOF(void *)
AC_CHECK_SIZEOF(time_t)
AC_CHECK_SIZEOF(size_t)
AC_CHECK_TYPES([uint, u_char])
AC_CHECK_TYPES([struct in6_addr, struct sockaddr_storage], , ,
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETINET_IN6_H
#include <netinet/in6.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif])
if test -z "$CROSS_COMPILE"; then
AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
AC_TRY_RUN([
#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
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)
])
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
if test $tor_cv_time_t_signed = yes; then
AC_DEFINE([TIME_T_IS_SIGNED], 1,
[Define to 1 iff time_t is signed])
fi
AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])
# We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
AC_CHECK_SIZEOF(cell_t)
# Now make sure that NULL can be represented as zero bytes.
if test -z "$CROSS_COMPILE"; then
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])])
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
if test $tor_cv_null_is_zero = yes; then
AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
[Define to 1 iff memset(0) sets pointers to NULL])
fi
# And what happens when we malloc zero?
if test -z "$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 $tor_cv_malloc_zero_works = yes; then
AC_DEFINE([MALLOC_ZERO_WORKS], 1,
[Define to 1 iff malloc(0) returns a pointer])
fi
# whether we seem to be in a 2s-complement world.
if test -z "$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.
AC_MSG_NOTICE([Cross-compiling: we'll assume that negative integers are represented with two's complement.])
tor_cv_twos_complement=yes
fi
if test $tor_cv_twos_complement = yes; then
AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
[Define to 1 iff we represent negative integers with two's complement])
fi
# Whether we should use the dmalloc memory allocation debugging library.
AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
AC_ARG_WITH(dmalloc,
[ --with-dmalloc Use debug memory allocation library. ],
[if [[ "$withval" = "yes" ]]; then
dmalloc=1
AC_MSG_RESULT(yes)
else
dmalloc=1
AC_MSG_RESULT(no)
fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
)
if [[ $dmalloc -eq 1 ]]; then
AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
AC_DEFINE(DMALLOC_FUNC_CHECK, 1, [Enable dmalloc's malloc function check])
fi
# Allow user to specify an alternate syslog facility
AC_ARG_WITH(syslog-facility,
[ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
syslog_facility="$withval", syslog_facility="LOG_DAEMON")
AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
AC_SUBST(LOGFACILITY)
# Check for gethostbyname_r in all its glorious incompatible versions.
# (This logic is based on that in Python's configure.in)
AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
[Define this if you have any gethostbyname_r()])
AC_CHECK_FUNC(gethostbyname_r, [
AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
OLD_CFLAGS=$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
])
AC_CACHE_CHECK([whether the C compiler supports __func__],
tor_cv_have_func_macro,
AC_COMPILE_IFELSE([
#include <stdio.h>
int main(int c, char **v) { puts(__func__); }],
tor_cv_have_func_macro=yes,
tor_cv_have_func_macro=no))
AC_CACHE_CHECK([whether the C compiler supports __FUNC__],
tor_cv_have_FUNC_macro,
AC_COMPILE_IFELSE([
#include <stdio.h>
int main(int c, char **v) { puts(__FUNC__); }],
tor_cv_have_FUNC_macro=yes,
tor_cv_have_FUNC_macro=no))
AC_CACHE_CHECK([whether the C compiler supports __FUNCTION__],
tor_cv_have_FUNCTION_macro,
AC_COMPILE_IFELSE([
#include <stdio.h>
int main(int c, char **v) { puts(__FUNCTION__); }],
tor_cv_have_FUNCTION_macro=yes,
tor_cv_have_FUNCTION_macro=no))
if test $tor_cv_have_func_macro = 'yes'; then
AC_DEFINE(HAVE_MACRO__func__, 1, [Defined if the compiler supports __func__])
fi
if test $tor_cv_have_FUNC_macro = 'yes'; then
AC_DEFINE(HAVE_MACRO__FUNC__, 1, [Defined if the compiler supports __FUNC__])
fi
if test $tor_cv_have_FUNCTION_macro = 'yes'; then
AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
[Defined if the compiler supports __FUNCTION__])
fi
# $prefix stores the value of the --prefix command line option, or
# NONE if the option wasn't set. In the case that it wasn't set, make
# it be the default, so that we can use it to expand directories now.
if test "x$prefix" = "xNONE"; then
prefix=$ac_default_prefix
fi
# and similarly for $exec_prefix
if test "x$exec_prefix" = "xNONE"; then
exec_prefix=$prefix
fi
if test "x$CONFDIR" = "x"; then
CONFDIR=`eval echo $sysconfdir/tor`
fi
AC_SUBST(CONFDIR)
AH_TEMPLATE([CONFDIR],[tor's configuration directory])
AC_DEFINE_UNQUOTED(CONFDIR,"$CONFDIR")
BINDIR=`eval echo $bindir`
AC_SUBST(BINDIR)
LOCALSTATEDIR=`eval echo $localstatedir`
AC_SUBST(LOCALSTATEDIR)
AH_TEMPLATE([LOCALSTATEDIR], [Default location to store state files.])
AC_DEFINE_UNQUOTED(LOCALSTATEDIR,"$LOCALSTATEDIR")
# Set CFLAGS _after_ all the above checks, since our warnings are stricter
# than autoconf's macros like.
if test $ac_cv_c_compiler_gnu = yes; then
CFLAGS="$CFLAGS -Wall -g -O2"
else
CFLAGS="$CFLAGS -g -O"
enable_gcc_warnings=no
fi
# Add some more warnings which we use in the cvs version but not in the
# released versions. (Some relevant gcc versions can't handle these.)
if test x$enable_gcc_warnings = xyes; then
AC_TRY_COMPILE([], [
#if !defined(__GNUC__) || (__GNUC__ < 4)
#error
#endif], have_gcc4=yes, have_gcc4=no)
CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Wwrite-strings -Waggregate-return -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wbad-function-cast -Wswitch-enum -Werror"
if test x$have_gcc4 = xyes ; then
# These warnings break gcc 3.3.5 and work on gcc 4.0.2
CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement -Wold-style-definition"
fi
##This will break the world on some 64-bit architectures
# CFLAGS="$CFLAGS -Winline"
fi
AC_OUTPUT(Makefile tor.spec 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)
if test -x /usr/bin/perl && test -x ./contrib/updateVersions.pl ; then
./contrib/updateVersions.pl
fi
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