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- dnl Copyright (c) 2001-2004, Roger Dingledine
- dnl Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson
- dnl Copyright (c) 2007-2015, The Tor Project, Inc.
- dnl See LICENSE for licensing information
- AC_INIT([tor],[0.2.6.2-alpha-dev])
- AC_CONFIG_SRCDIR([src/or/main.c])
- AC_CONFIG_MACRO_DIR([m4])
- AM_INIT_AUTOMAKE
- m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
- AC_CONFIG_HEADERS([orconfig.h])
- AC_CANONICAL_HOST
- PKG_PROG_PKG_CONFIG
- if test -f /etc/redhat-release ; then
- if test -f /usr/kerberos/include ; then
- CPPFLAGS="$CPPFLAGS -I/usr/kerberos/include"
- fi
- fi
- # Not a no-op; we want to make sure that CPPFLAGS is set before we use
- # the += operator on it in src/or/Makefile.am
- CPPFLAGS="$CPPFLAGS -I\${top_srcdir}/src/common"
- #XXXX020 We should make these enabled or not, before 0.2.0.x-final
- AC_ARG_ENABLE(buf-freelists,
- AS_HELP_STRING(--enable-buf-freelists, enable freelists for buffer RAM))
- AC_ARG_ENABLE(mempools,
- AS_HELP_STRING(--enable-mempools, enable mempools for relay cells))
- AC_ARG_ENABLE(openbsd-malloc,
- AS_HELP_STRING(--enable-openbsd-malloc, Use malloc code from openbsd. Linux only))
- AC_ARG_ENABLE(instrument-downloads,
- AS_HELP_STRING(--enable-instrument-downloads, Instrument downloads of directory resources etc.))
- 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))
- AC_ARG_ENABLE(static-zlib,
- AS_HELP_STRING(--enable-static-zlib, Link against a static zlib library. Requires --with-zlib-dir))
- AC_ARG_ENABLE(static-tor,
- AS_HELP_STRING(--enable-static-tor, Create an entirely static Tor binary. Requires --with-openssl-dir and --with-libevent-dir and --with-zlib-dir))
- AC_ARG_ENABLE(unittests,
- AS_HELP_STRING(--disable-unittests, [Don't build unit tests for Tor. Risky!]))
- AC_ARG_ENABLE(coverage,
- AS_HELP_STRING(--enable-coverage, [Enable coverage support in the unit-test build]))
- AM_CONDITIONAL(UNITTESTS_ENABLED, test x$enable_unittests != xno)
- AM_CONDITIONAL(COVERAGE_ENABLED, test x$enable_coverage = xyes)
- if test "$enable_static_tor" = "yes"; then
- enable_static_libevent="yes";
- enable_static_openssl="yes";
- enable_static_zlib="yes";
- CFLAGS="$CFLAGS -static"
- fi
- if test x$enable_buf_freelists = xyes; then
- AC_DEFINE(ENABLE_BUF_FREELISTS, 1,
- [Defined if we try to use freelists for buffer RAM chunks])
- fi
- AM_CONDITIONAL(USE_MEMPOOLS, test x$enable_mempools = xyes)
- if test x$enable_mempools = xyes; then
- AC_DEFINE(ENABLE_MEMPOOLS, 1,
- [Defined if we try to use mempools for cells being relayed])
- fi
- AM_CONDITIONAL(USE_OPENBSD_MALLOC, test x$enable_openbsd_malloc = xyes)
- if test x$enable_instrument_downloads = xyes; then
- AC_DEFINE(INSTRUMENT_DOWNLOADS, 1,
- [Defined if we want to keep track of how much of each kind of resource we download.])
- fi
- AC_ARG_ENABLE(transparent,
- AS_HELP_STRING(--disable-transparent, disable transparent proxy support),
- [case "${enableval}" in
- yes) transparent=true ;;
- no) transparent=false ;;
- *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
- esac], [transparent=true])
- AC_ARG_ENABLE(asciidoc,
- AS_HELP_STRING(--disable-asciidoc, don't use asciidoc (disables building of manpages)),
- [case "${enableval}" in
- yes) asciidoc=true ;;
- no) asciidoc=false ;;
- *) AC_MSG_ERROR(bad value for --disable-asciidoc) ;;
- esac], [asciidoc=true])
- # By default, we're not ready to ship a NAT-PMP aware Tor
- AC_ARG_ENABLE(nat-pmp,
- AS_HELP_STRING(--enable-nat-pmp, enable NAT-PMP support),
- [case "${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 "${enableval}" in
- yes) upnp=true ;;
- no) upnp=false ;;
- * ) AC_MSG_ERROR(bad value for --enable-upnp) ;;
- esac], [upnp=false])
- # systemd notify support
- AC_ARG_ENABLE(systemd,
- AS_HELP_STRING(--enable-systemd, enable systemd notification support),
- [case "${enableval}" in
- yes) systemd=true ;;
- no) systemd=false ;;
- * ) AC_MSG_ERROR(bad value for --enable-systemd) ;;
- esac], [systemd=auto])
- # systemd support
- if test x$enable_systemd = xfalse ; then
- have_systemd=no;
- else
- PKG_CHECK_MODULES(SYSTEMD,
- [libsystemd-daemon],
- have_systemd=yes,
- have_systemd=no)
- if test x$have_systemd=xno; then
- AC_MSG_NOTICE([Okay, checking for systemd a different way...])
- PKG_CHECK_MODULES(SYSTEMD,
- [libsystemd],
- have_systemd=yes,
- have_systemd=no)
- fi
- fi
- if test x$have_systemd = xyes; then
- AC_DEFINE(HAVE_SYSTEMD,1,[Have systemd])
- TOR_SYSTEMD_CFLAGS="${SYSTEMD_CFLAGS}"
- TOR_SYSTEMD_LIBS="${SYSTEMD_LIBS}"
- PKG_CHECK_MODULES(SYSTEMD209, [systemd >= 209],
- [AC_DEFINE(HAVE_SYSTEMD_209,1,[Have systemd v209 or more])], [])
- fi
- AC_SUBST(TOR_SYSTEMD_CFLAGS)
- AC_SUBST(TOR_SYSTEMD_LIBS)
- if test x$enable_systemd = xyes -a x$have_systemd != xyes ; then
- AC_MSG_ERROR([Explicitly requested systemd support, but systemd not found])
- fi
- AC_ARG_ENABLE(threads,
- AS_HELP_STRING(--disable-threads, disable multi-threading support))
- if test x$enable_threads = x; then
- case $host in
- *-*-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
- case $host in
- *-*-solaris* )
- AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])
- ;;
- esac
- AC_ARG_ENABLE(gcc-warnings,
- AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings))
- AC_ARG_ENABLE(gcc-warnings-advisory,
- AS_HELP_STRING(--enable-gcc-warnings-advisory, [enable verbose warnings, excluding -Werror]))
- dnl Others suggest '/gs /safeseh /nxcompat /dynamicbase' for non-gcc on Windows
- AC_ARG_ENABLE(gcc-hardening,
- AS_HELP_STRING(--disable-gcc-hardening, disable compiler security checks))
- AC_ARG_ENABLE(expensive-hardening,
- AS_HELP_STRING(--enable-expensive-hardening, enable more expensive compiler hardening; makes Tor slower))
- dnl Linker hardening options
- dnl Currently these options are ELF specific - you can't use this with MacOSX
- AC_ARG_ENABLE(linker-hardening,
- AS_HELP_STRING(--disable-linker-hardening, disable linker security fixups))
- AC_ARG_ENABLE(local-appdata,
- AS_HELP_STRING(--enable-local-appdata, default to host local application data paths on Windows))
- if test "$enable_local_appdata" = "yes"; then
- AC_DEFINE(ENABLE_LOCAL_APPDATA, 1,
- [Defined if we default to host local appdata paths on Windows])
- fi
- # Tor2web mode flag
- AC_ARG_ENABLE(tor2web-mode,
- AS_HELP_STRING(--enable-tor2web-mode, support tor2web non-anonymous mode),
- [if test x$enableval = xyes; then
- CFLAGS="$CFLAGS -D ENABLE_TOR2WEB_MODE=1"
- fi])
- AC_ARG_ENABLE(bufferevents,
- AS_HELP_STRING(--enable-bufferevents, use Libevent's buffered IO.))
- AC_ARG_ENABLE(tool-name-check,
- AS_HELP_STRING(--disable-tool-name-check, check for sanely named toolchain when cross-compiling))
- AC_ARG_ENABLE(seccomp,
- AS_HELP_STRING(--disable-seccomp, do not attempt to use libseccomp))
- AC_ARG_ENABLE(libscrypt,
- AS_HELP_STRING(--disable-libscrypt, do not attempt to use libscrypt))
- dnl check for the correct "ar" when cross-compiling
- AN_MAKEVAR([AR], [AC_PROG_AR])
- AN_PROGRAM([ar], [AC_PROG_AR])
- AC_DEFUN([AC_PROG_AR], [AC_CHECK_TOOL([AR], [ar], [ar])])
- AC_PROG_AR
- dnl Check whether the above macro has settled for a simply named tool even
- dnl though we're cross compiling. We must do this before running AC_PROG_CC,
- dnl because that will find any cc on the system, not only the cross-compiler,
- dnl and then verify that a binary built with this compiler runs on the
- dnl build system. It will then come to the false conclusion that we're not
- dnl cross-compiling.
- if test x$enable_tool_name_check != xno; then
- if test x$ac_tool_warned = xyes; then
- AC_MSG_ERROR([We are cross compiling but could not find a properly named toolchain. Do you have your cross-compiling toolchain in PATH? (You can --disable-tool-name-check to ignore this.)])
- elif test "x$ac_ct_AR" != x -a x$cross_compiling = xmaybe; then
- AC_MSG_ERROR([We think we are cross compiling but could not find a properly named toolchain. Do you have your cross-compiling toolchain in PATH? (You can --disable-tool-name-check to ignore this.)])
- fi
- fi
- AC_PROG_CC
- AC_PROG_CPP
- AC_PROG_MAKE_SET
- AC_PROG_RANLIB
- dnl autoconf 2.59 appears not to support AC_PROG_SED
- AC_CHECK_PROG([SED],[sed],[sed],[/bin/false])
- dnl check for asciidoc and a2x
- AC_PATH_PROG([ASCIIDOC], [asciidoc], none)
- AC_PATH_PROGS([A2X], [a2x a2x.py], none)
- AM_CONDITIONAL(USE_ASCIIDOC, test x$asciidoc = xtrue)
- AM_CONDITIONAL(USE_FW_HELPER, test x$natpmp = xtrue || test x$upnp = xtrue)
- AM_CONDITIONAL(NAT_PMP, test x$natpmp = xtrue)
- AM_CONDITIONAL(MINIUPNPC, test x$upnp = xtrue)
- AM_PROG_CC_C_O
- AC_PROG_CC_C99
- AC_ARG_VAR(PYTHON)
- AC_CHECK_PROGS(PYTHON, [python python2 python2.7 python3 python3.3])
- if test "x$PYTHON" = "x"; then
- AC_MSG_WARN([Python unavailable; some tests will not be run.])
- fi
- AM_CONDITIONAL(USEPYTHON, [test "x$PYTHON" != "x"])
- ifdef([AC_C_FLEXIBLE_ARRAY_MEMBER], [
- AC_C_FLEXIBLE_ARRAY_MEMBER
- ], [
- dnl Maybe we've got an old autoconf...
- AC_CACHE_CHECK([for flexible array members],
- tor_cv_c_flexarray,
- [AC_COMPILE_IFELSE(
- AC_LANG_PROGRAM([
- struct abc { int a; char b[]; };
- ], [
- struct abc *def = malloc(sizeof(struct abc)+sizeof(char));
- def->b[0] = 33;
- ]),
- [tor_cv_c_flexarray=yes],
- [tor_cv_c_flexarray=no])])
- if test $tor_cv_flexarray = yes ; then
- AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [], [Define to nothing if C supports flexible array members, and to 1 if it does not.])
- else
- AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [1], [Define to nothing if C supports flexible array members, and to 1 if it does not.])
- fi
- ])
- AC_CACHE_CHECK([for working C99 mid-block declaration syntax],
- tor_cv_c_c99_decl,
- [AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM([], [int x; x = 3; int y; y = 4 + x;])],
- [tor_cv_c_c99_decl=yes],
- [tor_cv_c_c99_decl=no] )])
- if test "$tor_cv_c_c99_decl" != "yes"; then
- AC_MSG_ERROR([Your compiler doesn't support c99 mid-block declarations. This is required as of Tor 0.2.6.x])
- fi
- AC_CACHE_CHECK([for working C99 designated initializers],
- tor_cv_c_c99_designated_init,
- [AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM([struct s { int a; int b; };],
- [[ struct s ss = { .b = 5, .a = 6 }; ]])],
- [tor_cv_c_c99_designated_init=yes],
- [tor_cv_c_c99_designated_init=no] )])
- if test "$tor_cv_c_c99_designated_init" != "yes"; then
- AC_MSG_ERROR([Your compiler doesn't support c99 designated initializers. This is required as of Tor 0.2.6.x])
- fi
- AC_PATH_PROG([SHA1SUM], [sha1sum], none)
- AC_PATH_PROG([OPENSSL], [openssl], none)
- TORUSER=_tor
- AC_ARG_WITH(tor-user,
- [ --with-tor-user=NAME Specify username for tor daemon ],
- [
- TORUSER=$withval
- ]
- )
- AC_SUBST(TORUSER)
- TORGROUP=_tor
- AC_ARG_WITH(tor-group,
- [ --with-tor-group=NAME Specify group name for tor daemon ],
- [
- TORGROUP=$withval
- ]
- )
- AC_SUBST(TORGROUP)
- dnl If _WIN32 is defined and non-zero, we are building for win32
- AC_MSG_CHECKING([for win32])
- AC_RUN_IFELSE([AC_LANG_SOURCE([
- int main(int c, char **v) {
- #ifdef _WIN32
- #if _WIN32
- return 0;
- #else
- return 1;
- #endif
- #else
- return 2;
- #endif
- }])],
- bwin32=true; AC_MSG_RESULT([yes]),
- bwin32=false; AC_MSG_RESULT([no]),
- bwin32=cross; AC_MSG_RESULT([cross])
- )
- if test "$bwin32" = cross; then
- AC_MSG_CHECKING([for win32 (cross)])
- AC_COMPILE_IFELSE([AC_LANG_SOURCE([
- #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
- AM_CONDITIONAL(BUILD_NT_SERVICES, test x$bwin32 = xtrue)
- dnl Enable C99 when compiling with MIPSpro
- AC_MSG_CHECKING([for MIPSpro compiler])
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [
- #if (defined(__sgi) && defined(_COMPILER_VERSION))
- #error
- return x(y);
- #endif
- ])],
- bmipspro=false; AC_MSG_RESULT(no),
- bmipspro=true; AC_MSG_RESULT(yes))
- if test "$bmipspro" = true; then
- CFLAGS="$CFLAGS -c99"
- fi
- AC_C_BIGENDIAN
- AC_SEARCH_LIBS(socket, [socket network])
- AC_SEARCH_LIBS(gethostbyname, [nsl])
- AC_SEARCH_LIBS(dlopen, [dl])
- AC_SEARCH_LIBS(inet_aton, [resolv])
- saved_LIBS="$LIBS"
- AC_SEARCH_LIBS([clock_gettime], [rt])
- if test "$LIBS" != "$saved_LIBS"; then
- # Looks like we need -lrt for clock_gettime().
- have_rt=yes
- fi
- AC_SEARCH_LIBS(pthread_create, [pthread])
- AC_SEARCH_LIBS(pthread_detach, [pthread])
- AM_CONDITIONAL(THREADS_WIN32, test "$enable_threads" = "yes" && test "$bwin32" = "true")
- AM_CONDITIONAL(THREADS_PTHREADS, test "$enable_threads" = "yes" && test "$bwin32" = "false")
- AM_CONDITIONAL(THREADS_NONE, test "$enable_threads" != "yes")
- dnl -------------------------------------------------------------------
- dnl Check for functions before libevent, since libevent-1.2 apparently
- dnl exports strlcpy without defining it in a header.
- AC_CHECK_FUNCS(
- _NSGetEnviron \
- accept4 \
- backtrace \
- backtrace_symbols_fd \
- clock_gettime \
- eventfd \
- flock \
- ftime \
- getaddrinfo \
- getifaddrs \
- getrlimit \
- gettimeofday \
- gmtime_r \
- inet_aton \
- ioctl \
- issetugid \
- llround \
- localtime_r \
- lround \
- memmem \
- pipe \
- pipe2 \
- prctl \
- rint \
- sigaction \
- socketpair \
- strlcat \
- strlcpy \
- strnlen \
- strptime \
- strtok_r \
- strtoull \
- sysconf \
- sysctl \
- uname \
- usleep \
- vasprintf \
- _vscprintf
- )
- if test "$bwin32" != true; 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?
- if test "$bwin32" = true; then
- TOR_LIB_WS32=-lws2_32
- TOR_LIB_IPHLPAPI=-liphlpapi
- # Some of the cargo-cults recommend -lwsock32 as well, but I don't
- # think it's actually necessary.
- TOR_LIB_GDI=-lgdi32
- else
- TOR_LIB_WS32=
- TOR_LIB_GDI=
- fi
- AC_SUBST(TOR_LIB_WS32)
- AC_SUBST(TOR_LIB_GDI)
- AC_SUBST(TOR_LIB_IPHLPAPI)
- dnl We need to do this before we try our disgusting hack below.
- AC_CHECK_HEADERS([sys/types.h])
- dnl This is a disgusting hack so we safely include older libevent headers.
- AC_CHECK_TYPE(u_int64_t, unsigned long long)
- AC_CHECK_TYPE(u_int32_t, unsigned long)
- AC_CHECK_TYPE(u_int16_t, unsigned short)
- AC_CHECK_TYPE(u_int8_t, unsigned char)
- tor_libevent_pkg_redhat="libevent"
- tor_libevent_pkg_debian="libevent-dev"
- tor_libevent_devpkg_redhat="libevent-devel"
- tor_libevent_devpkg_debian="libevent-dev"
- dnl On Gnu/Linux or any place we require it, we'll add librt to the Libevent
- dnl linking for static builds.
- STATIC_LIBEVENT_FLAGS=""
- if test "$enable_static_libevent" = "yes"; then
- if test "$have_rt" = yes; then
- STATIC_LIBEVENT_FLAGS=" -lrt "
- fi
- fi
- TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32], [
- #ifdef _WIN32
- #include <winsock2.h>
- #endif
- #include <stdlib.h>
- #include <sys/time.h>
- #include <sys/types.h>
- #include <event.h>], [
- #ifdef _WIN32
- #include <winsock2.h>
- #endif
- void exit(int); void *event_init(void);],
- [
- #ifdef _WIN32
- {WSADATA d; WSAStartup(0x101,&d); }
- #endif
- event_init(); exit(0);
- ], [--with-libevent-dir], [/opt/libevent])
- dnl Now check for particular libevent functions.
- save_LIBS="$LIBS"
- save_LDFLAGS="$LDFLAGS"
- save_CPPFLAGS="$CPPFLAGS"
- LIBS="-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32 $LIBS"
- LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS"
- CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS"
- AC_CHECK_FUNCS([event_get_version \
- event_get_version_number \
- event_get_method \
- event_set_log_callback \
- evutil_secure_rng_set_urandom_device_file \
- evutil_secure_rng_init \
- event_base_loopexit])
- AC_CHECK_MEMBERS([struct event.min_heap_idx], , ,
- [#include <event.h>
- ])
- AC_CHECK_HEADERS(event2/event.h event2/dns.h event2/bufferevent_ssl.h)
- LIBS="$save_LIBS"
- LDFLAGS="$save_LDFLAGS"
- CPPFLAGS="$save_CPPFLAGS"
- AM_CONDITIONAL(USE_EXTERNAL_EVDNS, test x$ac_cv_header_event2_dns_h = xyes)
- if test "$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 $STATIC_LIBEVENT_FLAGS"
- fi
- else
- TOR_LIBEVENT_LIBS="-levent"
- fi
- dnl This isn't the best test for Libevent 2.0.3-alpha. Once it's released,
- dnl we can do much better.
- if test "$enable_bufferevents" = "yes" ; then
- if test "$ac_cv_header_event2_bufferevent_ssl_h" != "yes" ; then
- AC_MSG_ERROR([You've asked for bufferevent support, but you're using a version of Libevent without SSL support. This won't work. We need Libevent 2.0.8-rc or later, and you don't seem to even have Libevent 2.0.3-alpha.])
- else
- CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent"
- # Check for the right version. First see if version detection works.
- AC_MSG_CHECKING([whether we can detect the Libevent version])
- AC_COMPILE_IFELSE([AC_LANG_SOURCE([
- #include <event2/event.h>
- #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 10
- #error
- int x = y(zz);
- #else
- int x = 1;
- #endif
- ])], [event_version_number_works=yes; AC_MSG_RESULT([yes]) ],
- [event_version_number_works=no; AC_MSG_RESULT([no])])
- if test "$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])
- AC_COMPILE_IFELSE([AC_LANG_SOURCE([
- #include <event2/event.h>
- #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 0x02000d00
- #error
- int x = y(zz);
- #else
- int x = 1;
- #endif
- ])], [ AC_MSG_RESULT([yes]) ],
- [ AC_MSG_RESULT([no])
- AC_MSG_ERROR([Libevent does not seem new enough to support bufferevents. We require 2.0.13-stable or later]) ] )
- fi
- fi
- fi
- LIBS="$save_LIBS"
- LDFLAGS="$save_LDFLAGS"
- CPPFLAGS="$save_CPPFLAGS"
- AM_CONDITIONAL(USE_BUFFEREVENTS, test "$enable_bufferevents" = "yes")
- if test "$enable_bufferevents" = "yes"; then
- AC_DEFINE(USE_BUFFEREVENTS, 1, [Defined if we're going to use Libevent's buffered IO API])
- if test "$enable_static_libevent" = "yes"; then
- TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent_openssl.a $TOR_LIBEVENT_LIBS"
- else
- TOR_LIBEVENT_LIBS="-levent_openssl $TOR_LIBEVENT_LIBS"
- fi
- fi
- AC_SUBST(TOR_LIBEVENT_LIBS)
- dnl ------------------------------------------------------
- dnl Where do you live, libm?
- dnl On some platforms (Haiku/BeOS) the math library is
- dnl part of libroot. In which case don't link against lm
- TOR_LIB_MATH=""
- save_LIBS="$LIBS"
- AC_SEARCH_LIBS(pow, [m], , AC_MSG_ERROR([Could not find pow in libm or libc.]))
- if test "$ac_cv_search_pow" != "none required"; then
- TOR_LIB_MATH="$ac_cv_search_pow"
- fi
- LIBS="$save_LIBS"
- AC_SUBST(TOR_LIB_MATH)
- dnl ------------------------------------------------------
- dnl Where do you live, openssl? And how do we call you?
- tor_openssl_pkg_redhat="openssl"
- tor_openssl_pkg_debian="libssl-dev"
- tor_openssl_devpkg_redhat="openssl-devel"
- tor_openssl_devpkg_debian="libssl-dev"
- ALT_openssl_WITHVAL=""
- AC_ARG_WITH(ssl-dir,
- [ --with-ssl-dir=PATH Obsolete alias for --with-openssl-dir ],
- [
- if test "x$withval" != xno && test "x$withval" != "x" ; then
- ALT_openssl_WITHVAL="$withval"
- fi
- ])
- TOR_SEARCH_LIBRARY(openssl, $tryssldir, [-lssl -lcrypto $TOR_LIB_GDI],
- [#include <openssl/rand.h>],
- [void RAND_add(const void *buf, int num, double entropy);],
- [RAND_add((void*)0,0,0); exit(0);], [],
- [/usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl])
- dnl XXXX check for OPENSSL_VERSION_NUMBER == SSLeay()
- if test "$enable_static_openssl" = "yes"; then
- if test "$tor_cv_library_openssl_dir" = "(system)"; then
- AC_MSG_ERROR("You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl")
- else
- TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a"
- fi
- else
- TOR_OPENSSL_LIBS="-lssl -lcrypto"
- fi
- AC_SUBST(TOR_OPENSSL_LIBS)
- AC_CHECK_MEMBERS([struct ssl_method_st.get_cipher_by_char], , ,
- [#include <openssl/ssl.h>
- ])
- dnl ------------------------------------------------------
- dnl Where do you live, zlib? And how do we call you?
- tor_zlib_pkg_redhat="zlib"
- tor_zlib_pkg_debian="zlib1g"
- tor_zlib_devpkg_redhat="zlib-devel"
- tor_zlib_devpkg_debian="zlib1g-dev"
- TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
- [#include <zlib.h>],
- [const char * zlibVersion(void);],
- [zlibVersion(); exit(0);], [--with-zlib-dir],
- [/opt/zlib])
- if test "$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"
- fi
- else
- TOR_ZLIB_LIBS="-lz"
- fi
- AC_SUBST(TOR_ZLIB_LIBS)
- dnl ---------------------------------------------------------------------
- dnl Now that we know about our major libraries, we can check for compiler
- dnl and linker hardening options. We need to do this with the libraries known,
- dnl since sometimes the linker will like an option but not be willing to
- dnl use it with a build of a library.
- all_ldflags_for_check="$TOR_LDFLAGS_zlib $TOR_LDFLAGS_openssl $TOR_LDFLAGS_libevent"
- all_libs_for_check="$TOR_ZLIB_LIBS $TOR_LIB_MATH $TOR_LIBEVENT_LIBS $TOR_OPENSSL_LIBS $TOR_SYSTEMD_LIBS $TOR_LIB_WS32 $TOR_LIB_GDI"
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
- #if !defined(__clang__)
- #error
- #endif])], have_clang=yes, have_clang=no)
- if test x$enable_gcc_hardening != xno; then
- CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2"
- if test x$have_clang = xyes; then
- TOR_CHECK_CFLAGS(-Qunused-arguments)
- fi
- TOR_CHECK_CFLAGS(-fstack-protector-all, also_link)
- AS_VAR_PUSHDEF([can_compile], [tor_cv_cflags_-fstack-protector-all])
- AS_VAR_PUSHDEF([can_link], [tor_can_link_-fstack-protector-all])
- m4_ifdef([AS_VAR_IF],[
- AS_VAR_IF(can_compile, [yes],
- AS_VAR_IF(can_link, [yes],
- [],
- AC_MSG_ERROR([We tried to build with stack protection; it looks like your compiler supports it but your libc does not provide it. Are you missing libssp? (You can --disable-gcc-hardening to ignore this error.)]))
- )])
- AS_VAR_POPDEF([can_link])
- AS_VAR_POPDEF([can_compile])
- TOR_CHECK_CFLAGS(-Wstack-protector)
- TOR_CHECK_CFLAGS(-fwrapv)
- TOR_CHECK_CFLAGS(--param ssp-buffer-size=1)
- if test "$bwin32" = "false"; then
- TOR_CHECK_CFLAGS(-fPIE)
- TOR_CHECK_LDFLAGS(-pie, "$all_ldflags_for_check", "$all_libs_for_check")
- fi
- fi
- if test x$enable_expensive_hardening = xyes ; then
- TOR_CHECK_CFLAGS([-fsanitize=address])
- TOR_CHECK_CFLAGS([-fsanitize=undefined])
- TOR_CHECK_CFLAGS([-fno-omit-frame-pointer])
- fi
- if test x$enable_linker_hardening != xno; then
- TOR_CHECK_LDFLAGS(-z relro -z now, "$all_ldflags_for_check", "$all_libs_for_check")
- fi
- # For backtrace support
- TOR_CHECK_LDFLAGS(-rdynamic)
- dnl ------------------------------------------------------
- dnl Now see if we have a -fomit-frame-pointer compiler option.
- saved_CFLAGS="$CFLAGS"
- TOR_CHECK_CFLAGS(-fomit-frame-pointer)
- F_OMIT_FRAME_POINTER=''
- if test "$saved_CFLAGS" != "$CFLAGS"; then
- if test x$enable_expensive_hardening != xyes ; then
- F_OMIT_FRAME_POINTER='-fomit-frame-pointer'
- fi
- fi
- CFLAGS="$saved_CFLAGS"
- AC_SUBST(F_OMIT_FRAME_POINTER)
- dnl ------------------------------------------------------
- dnl If we are adding -fomit-frame-pointer (or if the compiler's doing it
- dnl for us, as GCC 4.6 and later do at many optimization levels), then
- dnl we should try to add -fasynchronous-unwind-tables so that our backtrace
- dnl code will work.
- TOR_CHECK_CFLAGS(-fasynchronous-unwind-tables)
- 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 $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
- [#include <natpmp.h>],
- [#ifdef _WIN32
- #define STATICLIB
- #endif
- #include <natpmp.h>],
- [ int r;
- natpmp_t natpmp;
- natpmpresp_t response;
- r = initnatpmp(&natpmp, 0, 0);],
- [printf("initnatpmp() returned %d (%s)\n", r, r?"FAILED":"SUCCESS");
- exit(0);],
- [--with-libnatpmp-dir],
- [/usr/lib/])
- fi
- dnl ------------------------------------------------------
- dnl Where do you live, libminiupnpc? And how do we call you?
- dnl There are no packages for Debian or Redhat as of this patch
- if test "$upnp" = "true"; then
- AC_DEFINE(MINIUPNPC, 1, [Define to 1 if we are building with UPnP.])
- dnl Before we call TOR_SEARCH_LIBRARY we'll do a quick compile test
- dnl to see if we have miniupnpc-1.5 or -1.6
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <miniupnpc/miniupnpc.h>],
- [upnpDiscover(1, 0, 0, 0);exit(0);])],[miniupnpc15="true"],[miniupnpc15="false"])
- if test "$miniupnpc15" = "true" ; then
- AC_DEFINE([MINIUPNPC15],[1],[libminiupnpc version 1.5 found])
- TOR_SEARCH_LIBRARY(libminiupnpc, $trylibminiupnpcdir, [-lminiupnpc $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
- [#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/])
- else
- TOR_SEARCH_LIBRARY(libminiupnpc, $trylibminiupnpcdir, [-lminiupnpc $TOR_LIB_WS32 $TOR_LIB_IPHLPAPI],
- [#include <miniupnpc/miniwget.h>
- #include <miniupnpc/miniupnpc.h>
- #include <miniupnpc/upnpcommands.h>],
- [void upnpDiscover(int delay, const char * multicastif,
- const char * minissdpdsock, int sameport, int ipv6, int * error);],
- [upnpDiscover(1, 0, 0, 0, 0, 0); exit(0);],
- [--with-libminiupnpc-dir],
- [/usr/lib/])
- fi
- fi
- dnl ============================================================
- dnl Check for libseccomp
- if test "x$enable_seccomp" != "xno"; then
- AC_CHECK_HEADERS([seccomp.h])
- AC_SEARCH_LIBS(seccomp_init, [seccomp])
- fi
- dnl ============================================================
- dnl Check for libscrypt
- if test "x$enable_libscrypt" != "xno"; then
- AC_CHECK_HEADERS([libscrypt.h])
- AC_SEARCH_LIBS(libscrypt_scrypt, [scrypt])
- fi
- dnl ============================================================
- dnl We need an implementation of curve25519.
- dnl set these defaults.
- build_curve25519_donna=no
- build_curve25519_donna_c64=no
- use_curve25519_donna=no
- use_curve25519_nacl=no
- CURVE25519_LIBS=
- dnl The best choice is using curve25519-donna-c64, but that requires
- dnl that we
- AC_CACHE_CHECK([whether we can use curve25519-donna-c64],
- tor_cv_can_use_curve25519_donna_c64,
- [AC_RUN_IFELSE(
- [AC_LANG_PROGRAM([dnl
- #include <stdint.h>
- typedef unsigned uint128_t __attribute__((mode(TI)));
- int func(uint64_t a, uint64_t b) {
- uint128_t c = ((uint128_t)a) * b;
- int ok = ((uint64_t)(c>>96)) == 522859 &&
- (((uint64_t)(c>>64))&0xffffffffL) == 3604448702L &&
- (((uint64_t)(c>>32))&0xffffffffL) == 2351960064L &&
- (((uint64_t)(c))&0xffffffffL) == 0;
- return ok;
- }
- ], [dnl
- int ok = func( ((uint64_t)2000000000) * 1000000000,
- ((uint64_t)1234567890) << 24);
- return !ok;
- ])],
- [tor_cv_can_use_curve25519_donna_c64=yes],
- [tor_cv_can_use_curve25519_donna_c64=no],
- [AC_LINK_IFELSE(
- [AC_LANG_PROGRAM([dnl
- #include <stdint.h>
- typedef unsigned uint128_t __attribute__((mode(TI)));
- int func(uint64_t a, uint64_t b) {
- uint128_t c = ((uint128_t)a) * b;
- int ok = ((uint64_t)(c>>96)) == 522859 &&
- (((uint64_t)(c>>64))&0xffffffffL) == 3604448702L &&
- (((uint64_t)(c>>32))&0xffffffffL) == 2351960064L &&
- (((uint64_t)(c))&0xffffffffL) == 0;
- return ok;
- }
- ], [dnl
- int ok = func( ((uint64_t)2000000000) * 1000000000,
- ((uint64_t)1234567890) << 24);
- return !ok;
- ])],
- [tor_cv_can_use_curve25519_donna_c64=cross],
- [tor_cv_can_use_curve25519_donna_c64=no])])])
- AC_CHECK_HEADERS([crypto_scalarmult_curve25519.h \
- nacl/crypto_scalarmult_curve25519.h])
- AC_CACHE_CHECK([for nacl compiled with a fast curve25519 implementation],
- tor_cv_can_use_curve25519_nacl,
- [tor_saved_LIBS="$LIBS"
- LIBS="$LIBS -lnacl"
- AC_LINK_IFELSE(
- [AC_LANG_PROGRAM([dnl
- #ifdef HAVE_CRYPTO_SCALARMULT_CURVE25519_H
- #include <crypto_scalarmult_curve25519.h>
- #elif defined(HAVE_NACL_CRYPTO_SCALARMULT_CURVE25519_H)
- #include <nacl/crypto_scalarmult_curve25519.h>
- #endif
- #ifdef crypto_scalarmult_curve25519_ref_BYTES
- #error Hey, this is the reference implementation! That's not fast.
- #endif
- ], [
- unsigned char *a, *b, *c; crypto_scalarmult_curve25519(a,b,c);
- ])], [tor_cv_can_use_curve25519_nacl=yes],
- [tor_cv_can_use_curve25519_nacl=no])
- LIBS="$tor_saved_LIBS" ])
- dnl Okay, now we need to figure out which one to actually use. Fall back
- dnl to curve25519-donna.c
- if test x$tor_cv_can_use_curve25519_donna_c64 != xno; then
- build_curve25519_donna_c64=yes
- use_curve25519_donna=yes
- elif test x$tor_cv_can_use_curve25519_nacl = xyes; then
- use_curve25519_nacl=yes
- CURVE25519_LIBS=-lnacl
- else
- build_curve25519_donna=yes
- use_curve25519_donna=yes
- fi
- if test x$use_curve25519_donna = xyes; then
- AC_DEFINE(USE_CURVE25519_DONNA, 1,
- [Defined if we should use an internal curve25519_donna{,_c64} implementation])
- fi
- if test x$use_curve25519_nacl = xyes; then
- AC_DEFINE(USE_CURVE25519_NACL, 1,
- [Defined if we should use a curve25519 from nacl])
- fi
- AM_CONDITIONAL(BUILD_CURVE25519_DONNA, test x$build_curve25519_donna = xyes)
- AM_CONDITIONAL(BUILD_CURVE25519_DONNA_C64, test x$build_curve25519_donna_c64 = xyes)
- AC_SUBST(CURVE25519_LIBS)
- dnl Make sure to enable support for large off_t if available.
- AC_SYS_LARGEFILE
- 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.))
- dnl These headers are not essential
- AC_CHECK_HEADERS(
- arpa/inet.h \
- crt_externs.h \
- execinfo.h \
- grp.h \
- ifaddrs.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/eventfd.h \
- sys/file.h \
- sys/ioctl.h \
- sys/limits.h \
- sys/mman.h \
- sys/param.h \
- sys/prctl.h \
- sys/resource.h \
- sys/select.h \
- sys/socket.h \
- sys/sysctl.h \
- sys/syslimits.h \
- sys/time.h \
- sys/types.h \
- sys/un.h \
- sys/utime.h \
- sys/wait.h \
- syslog.h \
- utime.h
- )
- AC_CHECK_HEADERS(sys/param.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/if.h,[],[],
- [
- #ifdef HAVE_SYS_SOCKET_H
- #include <sys/socket.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
- #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
- #ifdef HAVE_NETINET_IN_H
- #include <netinet/in.h>
- #endif])
- AC_CHECK_HEADERS(linux/netfilter_ipv6/ip6_tables.h,
- linux_netfilter_ipv6_ip6_tables=1, linux_netfilter_ipv6_ip6_tables=0,
- [#ifdef HAVE_SYS_TYPES_H
- #include <sys/types.h>
- #endif
- #ifdef HAVE_SYS_SOCKET_H
- #include <sys/socket.h>
- #endif
- #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
- #ifdef HAVE_NETINET_IN_H
- #include <netinet/in.h>
- #endif
- #ifdef HAVE_LINUX_IF_H
- #include <linux/if.h>
- #endif])
- if test x$transparent = xtrue ; then
- transparent_ok=0
- if test x$net_if_found = x1 && test 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$linux_netfilter_ipv6_ip6_tables = x1 ; then
- transparent_ok=1
- fi
- if test x$transparent_ok = x1 ; then
- AC_DEFINE(USE_TRANSPARENT, 1, "Define to enable transparent proxy support")
- case $host in
- *-*-openbsd* | *-*-bitrig*)
- 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_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_SIZEOF(pid_t)
- AC_CHECK_TYPES([uint, u_char, ssize_t])
- AC_PC_FROM_UCONTEXT([/bin/true])
- dnl used to include sockaddr_storage, but everybody has that.
- AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t], , ,
- [#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 _WIN32
- #define _WIN32_WINNT 0x0501
- #define WIN32_LEAN_AND_MEAN
- #if defined(_MSC_VER) && (_MSC_VER < 1300)
- #include <winsock.h>
- #else
- #include <winsock2.h>
- #include <ws2tcpip.h>
- #endif
- #endif
- ])
- AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len], , ,
- [#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 _WIN32
- #define _WIN32_WINNT 0x0501
- #define WIN32_LEAN_AND_MEAN
- #if defined(_MSC_VER) && (_MSC_VER < 1300)
- #include <winsock.h>
- #else
- #include <winsock2.h>
- #include <ws2tcpip.h>
- #endif
- #endif
- ])
- AC_CHECK_TYPES([rlim_t], , ,
- [#ifdef HAVE_SYS_TYPES_H
- #include <sys/types.h>
- #endif
- #ifdef HAVE_SYS_TIME_H
- #include <sys/time.h>
- #endif
- #ifdef HAVE_SYS_RESOURCE_H
- #include <sys/resource.h>
- #endif
- ])
- AX_CHECK_SIGN([time_t],
- [ AC_DEFINE(TIME_T_IS_SIGNED, 1, [Define if time_t is signed]) ],
- [ : ], [
- #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
- ])
- if test "$ax_cv_decl_time_t_signed" = no; then
- AC_MSG_WARN([You have an unsigned time_t; some things will probably break. Please tell the Tor developers about your interesting platform.])
- fi
- AX_CHECK_SIGN([size_t],
- [ tor_cv_size_t_signed=yes ],
- [ tor_cv_size_t_signed=no ], [
- #ifdef HAVE_SYS_TYPES_H
- #include <sys/types.h>
- #endif
- ])
- if test "$ax_cv_decl_size_t_signed" = yes; then
- AC_MSG_ERROR([You have a signed size_t; that's grossly nonconformant.])
- fi
- AX_CHECK_SIGN([enum always],
- [ AC_DEFINE(ENUM_VALS_ARE_SIGNED, 1, [Define if enum is always signed]) ],
- [ : ], [
- enum always { AAA, BBB, CCC };
- ])
- AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
- #ifdef HAVE_SYS_SOCKET_H
- #include <sys/socket.h>
- #endif
- ])
- # We want to make sure that we _don't_ have a cell_t defined, like IRIX does.
- AC_CHECK_SIZEOF(cell_t)
- # Now make sure that NULL can be represented as zero bytes.
- AC_CACHE_CHECK([whether memset(0) sets pointers to NULL], tor_cv_null_is_zero,
- [AC_RUN_IFELSE([AC_LANG_SOURCE(
- [[#include <stdlib.h>
- #include <string.h>
- #include <stdio.h>
- #ifdef HAVE_STDDEF_H
- #include <stddef.h>
- #endif
- int main () { char *p1,*p2; p1=NULL; memset(&p2,0,sizeof(p2));
- return memcmp(&p1,&p2,sizeof(char*))?1:0; }]])],
- [tor_cv_null_is_zero=yes],
- [tor_cv_null_is_zero=no],
- [tor_cv_null_is_zero=cross])])
- if test "$tor_cv_null_is_zero" = cross ; then
- # 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
- if test "$tor_cv_null_is_zero" != no; then
- AC_DEFINE([NULL_REP_IS_ZERO_BYTES], 1,
- [Define to 1 iff memset(0) sets pointers to NULL])
- fi
- AC_CACHE_CHECK([whether memset(0) sets doubles to 0.0], tor_cv_dbl0_is_zero,
- [AC_RUN_IFELSE([AC_LANG_SOURCE(
- [[#include <stdlib.h>
- #include <string.h>
- #include <stdio.h>
- #ifdef HAVE_STDDEF_H
- #include <stddef.h>
- #endif
- int main () { double d1,d2; d1=0; memset(&d2,0,sizeof(d2));
- return memcmp(&d1,&d2,sizeof(d1))?1:0; }]])],
- [tor_cv_dbl0_is_zero=yes],
- [tor_cv_dbl0_is_zero=no],
- [tor_cv_dbl0_is_zero=cross])])
- if test "$tor_cv_dbl0_is_zero" = cross ; then
- # Cross-compiling; let's hope that the target isn't raving mad.
- AC_MSG_NOTICE([Cross-compiling: we'll assume that 0.0 can be represented as a sequence of 0-valued bytes.])
- fi
- if test "$tor_cv_dbl0_is_zero" != no; then
- AC_DEFINE([DOUBLE_0_REP_IS_ZERO_BYTES], 1,
- [Define to 1 iff memset(0) sets doubles to 0.0])
- fi
- # And what happens when we malloc zero?
- AC_CACHE_CHECK([whether we can malloc(0) safely.], tor_cv_malloc_zero_works,
- [AC_RUN_IFELSE([AC_LANG_SOURCE(
- [[#include <stdlib.h>
- #include <string.h>
- #include <stdio.h>
- #ifdef HAVE_STDDEF_H
- #include <stddef.h>
- #endif
- int main () { return malloc(0)?0:1; }]])],
- [tor_cv_malloc_zero_works=yes],
- [tor_cv_malloc_zero_works=no],
- [tor_cv_malloc_zero_works=cross])])
- if test "$tor_cv_malloc_zero_works" = cross; then
- # 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
- if test "$tor_cv_malloc_zero_works" = yes; then
- AC_DEFINE([MALLOC_ZERO_WORKS], 1,
- [Define to 1 iff malloc(0) returns a pointer])
- fi
- # whether we seem to be in a 2s-complement world.
- AC_CACHE_CHECK([whether we are using 2s-complement arithmetic], tor_cv_twos_complement,
- [AC_RUN_IFELSE([AC_LANG_SOURCE(
- [[int main () { int problem = ((-99) != (~99)+1);
- return problem ? 1 : 0; }]])],
- [tor_cv_twos_complement=yes],
- [tor_cv_twos_complement=no],
- [tor_cv_twos_complement=cross])])
- if test "$tor_cv_twos_complement" = cross ; then
- # 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.])
- fi
- if test "$tor_cv_twos_complement" != no ; then
- AC_DEFINE([USING_TWOS_COMPLEMENT], 1,
- [Define to 1 iff we represent negative integers with two's complement])
- fi
- # What does shifting a negative value do?
- AC_CACHE_CHECK([whether right-shift on negative values does sign-extension], tor_cv_sign_extend,
- [AC_RUN_IFELSE([AC_LANG_SOURCE(
- [[int main () { int okay = (-60 >> 8) == -1; return okay ? 0 : 1; }]])],
- [tor_cv_sign_extend=yes],
- [tor_cv_sign_extend=no],
- [tor_cv_sign_extend=cross])])
- if test "$tor_cv_sign_extend" = cross ; then
- # Cross-compiling; let's hope that the target isn't raving mad.
- AC_MSG_NOTICE([Cross-compiling: we'll assume that right-shifting negative integers causes sign-extension])
- fi
- if test "$tor_cv_sign_extend" != no ; then
- AC_DEFINE([RSHIFT_DOES_SIGN_EXTEND], 1,
- [Define to 1 iff right-shifting a negative value performs sign-extension])
- fi
- # Whether we should use the dmalloc memory allocation debugging library.
- AC_MSG_CHECKING(whether to use dmalloc (debug memory allocation library))
- AC_ARG_WITH(dmalloc,
- [ --with-dmalloc Use debug memory allocation library. ],
- [if [[ "$withval" = "yes" ]]; then
- dmalloc=1
- AC_MSG_RESULT(yes)
- else
- dmalloc=1
- AC_MSG_RESULT(no)
- fi], [ dmalloc=0; AC_MSG_RESULT(no) ]
- )
- if [[ $dmalloc -eq 1 ]]; then
- AC_CHECK_HEADERS(dmalloc.h, , AC_MSG_ERROR(dmalloc header file not found. Do you have the development files for dmalloc installed?))
- AC_SEARCH_LIBS(dmalloc_malloc, [dmallocth dmalloc], , AC_MSG_ERROR(Libdmalloc library not found. If you enable it you better have it installed.))
- AC_DEFINE(USE_DMALLOC, 1, [Debug memory allocation library])
- AC_CHECK_FUNCS(dmalloc_strdup dmalloc_strndup)
- fi
- AC_ARG_WITH(tcmalloc,
- [ --with-tcmalloc Use tcmalloc memory allocation library. ],
- [ tcmalloc=yes ], [ tcmalloc=no ])
- if test x$tcmalloc = xyes ; then
- LDFLAGS="-ltcmalloc $LDFLAGS"
- fi
- using_custom_malloc=no
- if test x$enable_openbsd_malloc = xyes ; then
- using_custom_malloc=yes
- fi
- if test x$tcmalloc = xyes ; then
- using_custom_malloc=yes
- fi
- if test $using_custom_malloc = no ; then
- AC_CHECK_FUNCS(mallinfo)
- fi
- # By default, we're going to assume we don't have mlockall()
- # bionic and other platforms have various broken mlockall subsystems.
- # Some systems don't have a working mlockall, some aren't linkable,
- # and some have it but don't declare it.
- AC_CHECK_FUNCS(mlockall)
- AC_CHECK_DECLS([mlockall], , , [
- #ifdef HAVE_SYS_MMAN_H
- #include <sys/mman.h>
- #endif])
- # Allow user to specify an alternate syslog facility
- AC_ARG_WITH(syslog-facility,
- [ --with-syslog-facility=LOG syslog facility to use (default=LOG_DAEMON)],
- syslog_facility="$withval", syslog_facility="LOG_DAEMON")
- AC_DEFINE_UNQUOTED(LOGFACILITY,$syslog_facility,[name of the syslog facility])
- AC_SUBST(LOGFACILITY)
- # Check if we have getresuid and getresgid
- AC_CHECK_FUNCS(getresuid getresgid)
- # Check for gethostbyname_r in all its glorious incompatible versions.
- # (This logic is based on that in Python's configure.in)
- AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
- [Define this if you have any gethostbyname_r()])
- AC_CHECK_FUNC(gethostbyname_r, [
- AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
- OLD_CFLAGS=$CFLAGS
- CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
- #include <netdb.h>
- ], [[
- char *cp1, *cp2;
- struct hostent *h1, *h2;
- int i1, i2;
- (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
- ]])],[
- AC_DEFINE(HAVE_GETHOSTBYNAME_R)
- AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
- [Define this if gethostbyname_r takes 6 arguments])
- AC_MSG_RESULT(6)
- ], [
- AC_TRY_COMPILE([
- #include <netdb.h>
- ], [
- char *cp1, *cp2;
- struct hostent *h1;
- int i1, i2;
- (void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
- ], [
- AC_DEFINE(HAVE_GETHOSTBYNAME_R)
- AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
- [Define this if gethostbyname_r takes 5 arguments])
- AC_MSG_RESULT(5)
- ], [
- AC_TRY_COMPILE([
- #include <netdb.h>
- ], [
- char *cp1;
- struct hostent *h1;
- struct hostent_data hd;
- (void) gethostbyname_r(cp1,h1,&hd);
- ], [
- AC_DEFINE(HAVE_GETHOSTBYNAME_R)
- AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
- [Define this if gethostbyname_r takes 3 arguments])
- AC_MSG_RESULT(3)
- ], [
- AC_MSG_RESULT(0)
- ])
- ])
- ])
- CFLAGS=$OLD_CFLAGS
- ])
- AC_CACHE_CHECK([whether the C compiler supports __func__],
- tor_cv_have_func_macro,
- AC_COMPILE_IFELSE([AC_LANG_SOURCE([
- #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([AC_LANG_SOURCE([
- #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([AC_LANG_SOURCE([
- #include <stdio.h>
- int main(int c, char **v) { puts(__FUNCTION__); }])],
- tor_cv_have_FUNCTION_macro=yes,
- tor_cv_have_FUNCTION_macro=no))
- AC_CACHE_CHECK([whether we have extern char **environ already declared],
- tor_cv_have_environ_declared,
- AC_COMPILE_IFELSE([AC_LANG_SOURCE([
- /* We define _GNU_SOURCE here because it is also defined in compat.c.
- * Without it environ doesn't get declared. */
- #define _GNU_SOURCE
- #ifdef HAVE_UNISTD_H
- #include <unistd.h>
- #endif
- #include <stdlib.h>
- int main(int c, char **v) { char **t = environ; }])],
- tor_cv_have_environ_declared=yes,
- tor_cv_have_environ_declared=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 "$tor_cv_have_FUNCTION_macro" = 'yes'; then
- AC_DEFINE(HAVE_MACRO__FUNCTION__, 1,
- [Defined if the compiler supports __FUNCTION__])
- fi
- if test "$tor_cv_have_environ_declared" = 'yes'; then
- AC_DEFINE(HAVE_EXTERN_ENVIRON_DECLARED, 1,
- [Defined if we have extern char **environ already declared])
- 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=$prefix
- fi
- if test "x$BUILDDIR" = "x"; then
- BUILDDIR=`pwd`
- fi
- AC_SUBST(BUILDDIR)
- AH_TEMPLATE([BUILDDIR],[tor's build directory])
- AC_DEFINE_UNQUOTED(BUILDDIR,"$BUILDDIR")
- if test "x$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 $localstatedir`
- AC_SUBST(LOCALSTATEDIR)
- if test "$bwin32" = true; then
- # Test if the linker supports the --nxcompat and --dynamicbase options
- # for Windows
- save_LDFLAGS="$LDFLAGS"
- LDFLAGS="-Wl,--nxcompat -Wl,--dynamicbase"
- AC_MSG_CHECKING([whether the linker supports DllCharacteristics])
- AC_LINK_IFELSE([AC_LANG_PROGRAM([])],
- [AC_MSG_RESULT([yes])]
- [save_LDFLAGS="$save_LDFLAGS $LDFLAGS"],
- [AC_MSG_RESULT([no])]
- )
- LDFLAGS="$save_LDFLAGS"
- fi
- # Set CFLAGS _after_ all the above checks, since our warnings are stricter
- # than autoconf's macros like.
- if test "$GCC" = yes; then
- # Disable GCC's strict aliasing checks. They are an hours-to-debug
- # accident waiting to happen.
- CFLAGS="$CFLAGS -Wall -fno-strict-aliasing"
- else
- # Override optimization level for non-gcc compilers
- CFLAGS="$CFLAGS -O"
- enable_gcc_warnings=no
- enable_gcc_warnings_advisory=no
- fi
- # OS X Lion started deprecating the system openssl. Let's just disable
- # all deprecation warnings on OS X. Also, to potentially make the binary
- # a little smaller, let's enable dead_strip.
- case "$host_os" in
- darwin*)
- CFLAGS="$CFLAGS -Wno-deprecated-declarations"
- LDFLAGS="$LDFLAGS -dead_strip" ;;
- esac
- # Add some more warnings which we use in development but not in the
- # released versions. (Some relevant gcc versions can't handle these.)
- if test x$enable_gcc_warnings = xyes || test x$enable_gcc_warnings_advisory = xyes; then
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
- #if !defined(__GNUC__) || (__GNUC__ < 4)
- #error
- #endif])], have_gcc4=yes, have_gcc4=no)
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
- #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
- #error
- #endif])], have_gcc42=yes, have_gcc42=no)
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
- #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
- #error
- #endif])], have_gcc43=yes, have_gcc43=no)
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
- #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 6)
- #error
- #endif])], have_gcc46=yes, have_gcc46=no)
- save_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS -Wshorten-64-to-32"
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], have_shorten64_flag=yes,
- have_shorten64_flag=no)
- CFLAGS="$save_CFLAGS"
- case $host in
- *-*-openbsd* | *-*-bitrig*)
- # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default.
- # That's fine, except that the headers don't pass -Wredundant-decls.
- # Therefore, let's disable -Wsystem-headers when we're building
- # with maximal warnings on OpenBSD.
- CFLAGS="$CFLAGS -Wno-system-headers" ;;
- esac
- 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="$CFLAGS -Wnested-externs -Wbad-function-cast -Wswitch-enum"
- if test x$enable_gcc_warnings = xyes; then
- CFLAGS="$CFLAGS -Werror"
- fi
- # Disabled, so we can use mallinfo(): -Waggregate-return
- if test x$have_gcc4 = xyes ; then
- # These warnings break gcc 3.3.5 and work on gcc 4.0.2
- CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wold-style-definition"
- fi
- if test x$have_gcc42 = xyes ; then
- # These warnings break gcc 4.0.2 and work on gcc 4.2
- # XXXX020 See if any of these work with earlier versions.
- CFLAGS="$CFLAGS -Waddress -Wmissing-noreturn -Wstrict-overflow=1"
- # We used to use -Wstrict-overflow=5, but that breaks us heavily under 4.3.
- fi
- if test x$have_gcc42 = xyes && test x$have_clang = xno; then
- # These warnings break gcc 4.0.2 and clang, but work on gcc 4.2
- CFLAGS="$CFLAGS -Wnormalized=id -Woverride-init"
- fi
- if test x$have_gcc43 = xyes ; then
- # These warnings break gcc 4.2 and work on gcc 4.3
- # XXXX020 See if any of these work with earlier versions.
- CFLAGS="$CFLAGS -Wextra -Warray-bounds"
- fi
- if test x$have_gcc46 = xyes ; then
- # This warning was added in gcc 4.3, but it appears to generate
- # spurious warnings in gcc 4.4. I don't know if it works in 4.5.
- CFLAGS="$CFLAGS -Wlogical-op"
- fi
- if test x$have_shorten64_flag = xyes ; then
- CFLAGS="$CFLAGS -Wshorten-64-to-32"
- fi
- ##This will break the world on some 64-bit architectures
- # CFLAGS="$CFLAGS -Winline"
- fi
- if test "$enable_coverage" = yes && test "$have_clang" = "no"; then
- case "$host_os" in
- darwin*)
- AC_MSG_WARN([Tried to enable coverage on OSX without using the clang compiler. This might not work! If coverage fails, use CC=clang when configuring with --enable-profiling.])
- esac
- fi
- CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent $TOR_CPPFLAGS_openssl $TOR_CPPFLAGS_zlib"
- AC_CONFIG_FILES([
- Doxyfile
- Makefile
- contrib/dist/suse/tor.sh
- contrib/operator-tools/tor.logrotate
- contrib/dist/tor.sh
- contrib/dist/torctl
- contrib/dist/tor.service
- src/config/torrc.sample
- src/config/torrc.minimal
- ])
- if test x$asciidoc = xtrue && test "$ASCIIDOC" = "none" ; then
- regular_mans="doc/tor doc/tor-gencert doc/tor-resolve doc/torify"
- for file in $regular_mans ; do
- if ! [[ -f "$srcdir/$file.1.in" ]] || ! [[ -f "$srcdir/$file.html.in" ]] ; then
- echo "==================================";
- echo;
- echo "Building Tor has failed since manpages cannot be built.";
- echo;
- echo "You need asciidoc installed to be able to build the manpages.";
- echo "To build without manpages, use the --disable-asciidoc argument";
- echo "when calling configure.";
- echo;
- echo "==================================";
- exit 1;
- fi
- done
- fi
- AC_OUTPUT
- if test -x /usr/bin/perl && test -x ./scripts/maint/updateVersions.pl ; then
- ./scripts/maint/updateVersions.pl
- fi
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