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configure.ac
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dnl -*- mode: m4 -*-
AC_PREREQ([2.63])
m4_define([dbus_major_version], [1])
m4_define([dbus_minor_version], [12])
m4_define([dbus_micro_version], [16])
m4_define([dbus_version],
[dbus_major_version.dbus_minor_version.dbus_micro_version])
AC_INIT([dbus],[dbus_version],[https://bugs.freedesktop.org/enter_bug.cgi?product=dbus],[dbus])
AC_CONFIG_AUX_DIR([build-aux])
m4_pattern_forbid([^AX_(CHECK_ENABLE_DEBUG|CODE_COVERAGE|COMPILER_FLAGS|COMPILER_FLAGS_(CFLAGS|CXXFLAGS|LDFLAGS))\b],
[Unexpanded AX_ macro found. Please install GNU autoconf-archive])
AC_CANONICAL_HOST
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE([1.13 tar-ustar -Wno-portability subdir-objects])
GETTEXT_PACKAGE=dbus-1
AC_SUBST(GETTEXT_PACKAGE)
AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE,"$GETTEXT_PACKAGE",[The name of the gettext domain])
# By default, rebuild autotools files on demand; only use ./missing if the
# user says --disable-maintainer-mode (some distributions like to do this)
AM_MAINTAINER_MODE([enable])
m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
AC_DEFINE_UNQUOTED(DBUS_DAEMON_NAME,"dbus-daemon",[Name of executable])
# libtool versioning - this applies to libdbus
#
# See http://sources.redhat.com/autobook/autobook/autobook_91.html#SEC91 for details
#
## increment if the interface has additions, changes, removals.
LT_CURRENT=22
## increment any time the source changes; set to
## 0 if you increment CURRENT
LT_REVISION=11
## increment if any interfaces have been added; set to 0
## if any interfaces have been changed or removed. removal has
## precedence over adding, so set to 0 if both happened.
LT_AGE=19
AC_SUBST(LT_CURRENT)
AC_SUBST(LT_REVISION)
AC_SUBST(LT_AGE)
SOVERSION=`expr ${LT_CURRENT} - ${LT_AGE}`
AC_SUBST([SOVERSION])
DBUS_MAJOR_VERSION=dbus_major_version
DBUS_MINOR_VERSION=dbus_minor_version
DBUS_MICRO_VERSION=dbus_micro_version
DBUS_VERSION=dbus_major_version.dbus_minor_version.dbus_micro_version
AC_SUBST(DBUS_MAJOR_VERSION)
AC_SUBST(DBUS_MINOR_VERSION)
AC_SUBST(DBUS_MICRO_VERSION)
AC_SUBST(DBUS_VERSION)
dnl
dnl Build configuration
dnl
dnl This must come first: other options use this to set their defaults. Don't
dnl enable developer mode on production builds.
AC_ARG_ENABLE([developer],
[AS_HELP_STRING([--enable-developer],
[set defaults to be appropriate for a D-Bus developer instead of a distribution/end-user])],
[enable_developer=$enableval],
[enable_developer=no])
dnl 'disable_developer' is the negation of 'enable_developer'. If
dnl 'enable-developer' is set to 'no' (the default), the value of
dnl 'disable_developer' is set to 'yes', and vice versa. It's used
dnl for macros that require the opposite of 'enable_developer', such
dnl as several AX_ macros.
dnl See https://bugs.freedesktop.org/show_bug.cgi?id=97357
AS_IF([test "x$enable_developer" = "xyes"],[
disable_developer=no
],[
disable_developer=yes
])
# The debugging check must run before the compiler tests. Other command-line
# options also use it to set their defaults. We disable debugging by default,
# except for developer builds.
AX_CHECK_ENABLE_DEBUG([$enable_developer])
AC_PROG_CC
AM_PROG_CC_C_O
AC_PROG_CXX
AC_USE_SYSTEM_EXTENSIONS
AC_SYS_LARGEFILE
AC_ISC_POSIX
AC_HEADER_STDC
AC_C_INLINE
AM_PROG_LIBTOOL
AC_PROG_MKDIR_P
PKG_PROG_PKG_CONFIG
# TAP test driver support
AC_PROG_AWK
AC_REQUIRE_AUX_FILE([tap-driver.sh])
# This must come before we set up compiler warnings because it assumes
# non-use of -Werror=missing-prototypes
gl_VISIBILITY
AM_CONDITIONAL([HAVE_VISIBILITY], [test "x$HAVE_VISIBILITY" = x1])
# Initialize libtool
LT_INIT([win32-dll])
LT_LANG([Windows Resource])
# Set some internal variables depending on the platform for later use.
dbus_win=no
dbus_cygwin=no
dbus_unix=no
case "${host}" in
*-mingw32ce*)
dbus_win=yes
dbus_wince=yes
;;
*-mingw32*)
dbus_win=yes
;;
*-cygwin*)
dbus_cygwin=yes
dbus_unix=yes
;;
*)
dbus_unix=yes
;;
esac
# Special defines for certain platforms
if test "$dbus_win" = yes; then
AC_DEFINE(DBUS_WIN,1,[Defined if we run on a W32 API based system])
# Yes, on Windows it really does work like this.
# http://support.microsoft.com/kb/111855
AC_DEFINE(FD_SETSIZE,8192,[The maximum number of connections that can be handled at once])
BUILD_TIMESTAMP=`date --iso-8601=minutes`
AC_SUBST(BUILD_TIMESTAMP)
# Assume DBUS_VERSION is always three numbers
BUILD_FILEVERSION=`echo "$DBUS_VERSION" | sed -e 's/\./,/g'`,0
AC_SUBST(BUILD_FILEVERSION)
AS_IF([test -z "$RC"],
[AC_MSG_ERROR([An implementation of windres is required])])
if test "$dbus_wince" = yes; then
AC_DEFINE(DBUS_WINCE,1,[Defined if we run on a W32 CE API based system])
AC_DEFINE(_WIN32_WCE, 0x0502, [Defined to get newer W32 CE APIs])
fi
else
AC_DEFINE(DBUS_UNIX,1,[Defined if we run on a Unix-based system])
fi
if test "$dbus_cygwin" = yes; then
AC_DEFINE(DBUS_CYGWIN,1,[Defined if we run on a cygwin API based system])
fi
# For best security, assume that all non-Windows platforms can do
# credentials-passing.
AS_IF([test "$dbus_win" = yes],
[DBUS_SESSION_CONF_MAYBE_AUTH_EXTERNAL="<!--<auth>EXTERNAL</auth>-->"],
[DBUS_SESSION_CONF_MAYBE_AUTH_EXTERNAL="<auth>EXTERNAL</auth>"])
AC_SUBST([DBUS_SESSION_CONF_MAYBE_AUTH_EXTERNAL])
AM_CONDITIONAL(DBUS_WIN, test "$dbus_win" = yes)
AM_CONDITIONAL(DBUS_WINCE, test "$dbus_wince" = yes)
AM_CONDITIONAL(DBUS_UNIX, test "$dbus_unix" = yes)
AM_CONDITIONAL(DBUS_CYGWIN, test "$dbus_cygwin" = yes)
DBUS_STATIC_BUILD_CPPFLAGS=
if test "x$enable_shared" = xno; then
# On Windows, linking against the static library requires special effort
# to turn off DLL import/export processing. We normally link some things
# against the dynamic library, but if we're not building that, we'll
# have to link everything statically.
DBUS_STATIC_BUILD_CPPFLAGS=-DDBUS_STATIC_BUILD
fi
AC_SUBST([DBUS_STATIC_BUILD_CPPFLAGS])
AC_ARG_ENABLE(ansi, AS_HELP_STRING([--enable-ansi],[enable -ansi -pedantic gcc flags]),enable_ansi=$enableval,enable_ansi=no)
AC_ARG_ENABLE(verbose-mode, AS_HELP_STRING([--enable-verbose-mode],[support verbose debug mode]),enable_verbose_mode=$enableval,enable_verbose_mode=$enable_developer)
AC_ARG_ENABLE(asserts, AS_HELP_STRING([--enable-asserts],[include assertion checks]),enable_asserts=$enableval,enable_asserts=$enable_developer)
AC_ARG_ENABLE(checks, AS_HELP_STRING([--enable-checks],[include sanity checks on public API]),enable_checks=$enableval,enable_checks=yes)
AC_ARG_ENABLE(xml-docs, AS_HELP_STRING([--enable-xml-docs],[build XML documentation (requires xmlto)]),enable_xml_docs=$enableval,enable_xml_docs=auto)
AC_ARG_ENABLE(doxygen-docs, AS_HELP_STRING([--enable-doxygen-docs],[build DOXYGEN documentation (requires Doxygen)]),enable_doxygen_docs=$enableval,enable_doxygen_docs=auto)
AC_ARG_ENABLE([ducktype-docs],
AS_HELP_STRING([--enable-ducktype-docs],
[build Ducktype documentation (requires Ducktype)]),
[enable_ducktype_docs=$enableval], [enable_ducktype_docs=auto])
AC_ARG_ENABLE(selinux, AS_HELP_STRING([--enable-selinux],[build with SELinux support]),enable_selinux=$enableval,enable_selinux=auto)
AC_ARG_ENABLE([apparmor],
[AS_HELP_STRING([--enable-apparmor], [build with AppArmor support])],
[enable_apparmor=$enableval],
[enable_apparmor=auto])
AC_ARG_ENABLE(libaudit,AS_HELP_STRING([--enable-libaudit],[build audit daemon support for SELinux]),enable_libaudit=$enableval,enable_libaudit=auto)
AC_ARG_ENABLE(inotify, AS_HELP_STRING([--enable-inotify],[build with inotify support (linux only)]),enable_inotify=$enableval,enable_inotify=auto)
AC_ARG_ENABLE(kqueue, AS_HELP_STRING([--enable-kqueue],[build with kqueue support]),enable_kqueue=$enableval,enable_kqueue=auto)
AC_ARG_ENABLE(console-owner-file, AS_HELP_STRING([--enable-console-owner-file],[enable console owner file]),enable_console_owner_file=$enableval,enable_console_owner_file=auto)
AC_ARG_ENABLE(launchd, AS_HELP_STRING([--enable-launchd],[build with launchd auto-launch support]),enable_launchd=$enableval,enable_launchd=auto)
AC_ARG_ENABLE(systemd, AS_HELP_STRING([--enable-systemd],[build with systemd at_console support]),enable_systemd=$enableval,enable_systemd=auto)
AC_ARG_WITH(session-socket-dir, AS_HELP_STRING([--with-session-socket-dir=[dirname]],[Where to put sockets for the per-login-session message bus]))
AC_ARG_WITH(test-socket-dir, AS_HELP_STRING([--with-test-socket-dir=[dirname]],[Where to put sockets for make check]))
AC_ARG_WITH(system-pid-file, AS_HELP_STRING([--with-system-pid-file=[pidfile]],[PID file for systemwide daemon]))
AC_ARG_WITH(system-socket, AS_HELP_STRING([--with-system-socket=[filename]],[UNIX domain socket for systemwide daemon]))
AC_ARG_WITH(console-auth-dir, AS_HELP_STRING([--with-console-auth-dir=[dirname]],[directory to check for console ownerhip]))
AC_ARG_WITH(console-owner-file, AS_HELP_STRING([--with-console-owner-file=[filename]],[file whose owner determines current console owner]))
AC_ARG_WITH(launchd-agent-dir, AS_HELP_STRING([--with-launchd-agent-dir=[dirname]],[directory to put the launchd agent (default: /Library/LaunchAgents)]))
AC_ARG_WITH(dbus_user, AS_HELP_STRING([--with-dbus-user=<user>],[User for running the DBUS daemon (messagebus)]))
AC_ARG_WITH([test_user],
[AS_HELP_STRING([--with-test-user=<user>],
[Unprivileged user for regression tests, other than root and the dbus_user (default: nobody)])])
AC_ARG_WITH(dbus_daemondir, AS_HELP_STRING([--with-dbus-daemondir=[dirname]],[Directory for installing the DBUS daemon]))
AC_ARG_ENABLE([embedded-tests],
AS_HELP_STRING([--enable-embedded-tests],
[enable unit test code in the library and binaries]),
[], [enable_embedded_tests=$enable_developer])
AC_ARG_ENABLE([modular-tests],
AS_HELP_STRING([--enable-modular-tests],
[enable modular regression tests (requires GLib)]),
[], [enable_modular_tests=auto])
# --enable-tests overrides both --enable-embedded-tests and
# --enable-modular-tests
AC_ARG_ENABLE([tests],
AS_HELP_STRING([--enable-tests],
[enable/disable all tests, overriding embedded-tests/modular-tests]),
[
if test "x$enableval" = xyes; then
AC_MSG_NOTICE([Full test coverage was requested with --enable-tests=yes])
AC_MSG_NOTICE([This has many dependencies (GLib, Python etc.)])
fi
enable_embedded_tests=$enableval
enable_modular_tests=$enableval
],
[])
# DBUS_ENABLE_EMBEDDED_TESTS controls unit tests built in to .c files
# and also some stuff in the test/ subdir.
AM_CONDITIONAL([DBUS_ENABLE_EMBEDDED_TESTS],
[test "x$enable_embedded_tests" = xyes])
if test "x$enable_embedded_tests" = xyes; then
AC_DEFINE([DBUS_ENABLE_EMBEDDED_TESTS], [1],
[Define to build test code into the library and binaries])
fi
# DBUS_ENABLE_MODULAR_TESTS controls tests that work based on public API.
# These use GTest, from GLib, because life's too short. They're enabled by
# default (unless you don't have GLib), because they don't bloat the library
# or binaries.
dnl Don't do anything too subtle here, because the CMake build system
dnl parses these lines with regular expressions. If necessary, adjust
dnl cmake/modules/MacrosAutotools.cmake to compensate.
AC_DEFINE([GLIB_VERSION_MIN_REQUIRED], [GLIB_VERSION_2_40], [Ignore post-2.40 deprecations])
AC_DEFINE([GLIB_VERSION_MAX_ALLOWED], [G_ENCODE_VERSION(2,44)], [Prevent post-2.44 APIs])
with_glib=yes
AS_IF([test "x$enable_modular_tests" != xno],
[
PKG_CHECK_MODULES([GLIB], [glib-2.0 >= 2.40, gio-2.0 >= 2.40],
[
AS_IF([test "x$dbus_unix" = xyes],
[PKG_CHECK_MODULES([GIO_UNIX], [gio-unix-2.0],
[AC_DEFINE([HAVE_GIO_UNIX], [1], [Define if you have gio-unix-2.0])], [])])
],
[if test "x$enable_modular_tests" = xyes; then
AC_MSG_NOTICE([Full test coverage (--enable-modular-tests=yes or --enable-tests=yes) requires GLib])
AC_MSG_ERROR([$GLIB_ERRORS])
else # assumed to be "auto"
with_glib=no
fi])
],
[with_glib=no])
if test "x$enable_modular_tests" != xno; then
AC_DEFINE([DBUS_ENABLE_MODULAR_TESTS], [1],
[Define to build independent test binaries])
fi
AM_CONDITIONAL([DBUS_ENABLE_MODULAR_TESTS],
[test "x$enable_modular_tests" != xno])
if test "x$with_glib" != xno; then
AC_DEFINE([DBUS_WITH_GLIB], [1],
[Define if GLib, GObject, GIO are available])
fi
AM_CONDITIONAL([DBUS_WITH_GLIB], [test "x$with_glib" != xno])
AC_ARG_ENABLE([installed-tests],
AS_HELP_STRING([--enable-installed-tests],
[enable unit test code in the library and binaries]),
[], [enable_installed_tests=no])
AM_CONDITIONAL([DBUS_ENABLE_INSTALLED_TESTS],
[test "x$enable_installed_tests" = xyes])
if test "x$enable_tests" = xyes; then
# full test coverage is required, Python is a hard dependency
AC_MSG_NOTICE([Full test coverage (--enable-tests=yes) requires Python, dbus-python, pygi])
AM_PATH_PYTHON([2.6])
AC_MSG_CHECKING([for Python modules for full test coverage])
if "$PYTHON" -c "import dbus, gi.repository.GObject, dbus.mainloop.glib"; then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
AC_MSG_ERROR([cannot import dbus, gi.repository.GObject, dbus.mainloop.glib Python modules])
fi
else
# --enable-tests not given: do not abort if Python is missing
AM_PATH_PYTHON([2.6], [], [:])
fi
if test x$enable_verbose_mode = xyes; then
AC_DEFINE(DBUS_ENABLE_VERBOSE_MODE,1,[Support a verbose mode])
fi
dnl Intentional:
dnl - $DISABLE_WARNINGS disables unused-label warnings if not
dnl checking or not asserting (tested further below)
dnl - we are not going to stop using deprecated functions on a stable
dnl branch
dnl - missing field initializers being 0 is a C feature, not a bug
dnl - unused-parameter is to make writing callbacks less annoying
dnl - cast-function-type is for the
dnl foreach(list, (DBusForeachFunction) free, NULL) idiom which would
dnl be too intrusive to replace in a stable branch
DISABLE_WARNINGS="$DISABLE_WARNINGS
-Wno-deprecated-declarations
-Wno-missing-field-initializers
-Wno-unused-parameter
-Wno-cast-function-type"
if test x$enable_asserts = xno; then
AC_DEFINE(DBUS_DISABLE_ASSERT,1,[Disable assertion checking])
DISABLE_WARNINGS="$DISABLE_WARNINGS -Wno-unused-label"
R_DYNAMIC_LDFLAG=""
if test x$enable_embedded_tests = xyes; then
DISABLE_WARNINGS="$DISABLE_WARNINGS
-Wno-unused-but-set-variable
-Wno-unused-variable
-Wno-unused-function"
fi
else
# -rdynamic is needed for glibc's backtrace_symbols to work.
# No clue how much overhead this adds, but it's useful
# to do this on any assertion failure,
# so for now it's enabled anytime asserts are (currently not
# in production builds).
# To get -rdynamic you pass -export-dynamic to libtool.
AC_DEFINE(DBUS_BUILT_R_DYNAMIC,1,[whether -export-dynamic was passed to libtool])
R_DYNAMIC_LDFLAG=-export-dynamic
fi
AC_SUBST(R_DYNAMIC_LDFLAG)
if test x$enable_checks = xno; then
AC_DEFINE(DBUS_DISABLE_CHECKS,1,[Disable public API sanity checking])
AC_DEFINE(G_DISABLE_CHECKS,1,[Disable GLib public API sanity checking])
DISABLE_WARNINGS="$DISABLE_WARNINGS -Wno-unused-label"
fi
AH_BOTTOM([
/* explicitly define these macros to get less confusing conditions */
#ifndef DBUS_DISABLE_ASSERT
# define DBUS_ENABLE_ASSERT 1
#endif
#ifndef DBUS_DISABLE_CHECKS
# define DBUS_ENABLE_CHECKS 1
#endif])
# Test for code-coverage tools if --enable-code-coverage
AX_CODE_COVERAGE
AS_IF([test x$enable_code_coverage = xyes],[
AC_DEFINE_UNQUOTED(
[DBUS_GCOV_ENABLED], [1],
[Defined if gcov is enabled to force a rebuild due to config.h changing])
])
#### Integer sizes
AC_CHECK_SIZEOF(char)
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(void *)
AC_CHECK_SIZEOF(long long)
AC_CHECK_SIZEOF(__int64)
### See what our 64 bit type is called
AC_MSG_CHECKING([64-bit integer type])
case 8 in
$ac_cv_sizeof_int)
dbusint64=int
dbusint64_constant='(val)'
dbusuint64_constant='(val)'
;;
$ac_cv_sizeof_long)
dbusint64=long
dbusint64_constant='(val##L)'
dbusuint64_constant='(val##UL)'
;;
$ac_cv_sizeof_long_long)
dbusint64='long long'
dbusint64_constant='(val##LL)'
dbusuint64_constant='(val##ULL)'
;;
$ac_cv_sizeof___int64)
dbusint64=__int64
dbusint64_constant='(val##i64)'
dbusuint64_constant='(val##ui64)'
;;
esac
AS_IF(
[test -z "$dbusint64"],
[AC_MSG_RESULT([not found])
AC_MSG_ERROR([Could not find a 64-bit integer type.
Please report a bug here with details of your platform and compiler:
http://bugs.freedesktop.org/enter_bug.cgi?product=DBus&component=core])
],
dnl else
[
DBUS_INT64_TYPE="$dbusint64"
DBUS_INT64_CONSTANT="$dbusint64_constant"
DBUS_UINT64_CONSTANT="$dbusuint64_constant"
AC_MSG_RESULT($DBUS_INT64_TYPE)
])
AC_SUBST(DBUS_INT64_TYPE)
AC_SUBST(DBUS_INT64_CONSTANT)
AC_SUBST(DBUS_UINT64_CONSTANT)
### see what 32-bit int is called
AC_MSG_CHECKING([32-bit integer type])
case 4 in
$ac_cv_sizeof_short)
dbusint32=short
;;
$ac_cv_sizeof_int)
dbusint32=int
;;
$ac_cv_sizeof_long)
dbusint32=long
;;
esac
if test -z "$dbusint32" ; then
DBUS_INT32_TYPE="no_int32_type_detected"
AC_MSG_ERROR([No 32-bit integer type found])
else
DBUS_INT32_TYPE="$dbusint32"
AC_MSG_RESULT($DBUS_INT32_TYPE)
fi
AC_SUBST(DBUS_INT32_TYPE)
### see what 16-bit int is called
AC_MSG_CHECKING([16-bit integer type])
case 2 in
$ac_cv_sizeof_short)
dbusint16=short
;;
$ac_cv_sizeof_int)
dbusint16=int
;;
esac
if test -z "$dbusint16" ; then
DBUS_INT16_TYPE="no_int16_type_detected"
AC_MSG_ERROR([No 16-bit integer type found])
else
DBUS_INT16_TYPE="$dbusint16"
AC_MSG_RESULT($DBUS_INT16_TYPE)
fi
AC_SUBST(DBUS_INT16_TYPE)
## byte order
case $host_os in
darwin*)
# check at compile-time, so that it is possible to build universal
# (with multiple architectures at once on the compile line)
AH_VERBATIM([WORDS_BIGENDIAN_DARWIN], [
/* Use the compiler-provided endianness defines to allow universal compiling. */
#if defined(__BIG_ENDIAN__)
#define WORDS_BIGENDIAN 1
#endif
])
;;
*)
AC_C_BIGENDIAN
;;
esac
# As a GNU extension, glibc declares environ in unistd.h, which is one of
# the AC_INCLUDES_DEFAULT.
AC_CHECK_DECLS([environ])
dnl **********************************
dnl *** va_copy checks (from GLib) ***
dnl **********************************
dnl we currently check for all three va_copy possibilities, so we get
dnl all results in config.log for bug reports.
AC_CACHE_CHECK([for an implementation of va_copy()],dbus_cv_va_copy,[
AC_LINK_IFELSE([AC_LANG_SOURCE([#include <stdarg.h>
#include <stdlib.h>
static void f (int i, ...) {
va_list args1, args2;
va_start (args1, i);
va_copy (args2, args1);
if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
exit (1);
va_end (args1); va_end (args2);
}
int main() {
f (0, 42);
return 0;
}])],
[dbus_cv_va_copy=yes],
[dbus_cv_va_copy=no])
])
AC_CACHE_CHECK([for an implementation of __va_copy()],dbus_cv___va_copy,[
AC_LINK_IFELSE([AC_LANG_SOURCE([#include <stdarg.h>
#include <stdlib.h>
static void f (int i, ...) {
va_list args1, args2;
va_start (args1, i);
__va_copy (args2, args1);
if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
exit (1);
va_end (args1); va_end (args2);
}
int main() {
f (0, 42);
return 0;
}])],
[dbus_cv___va_copy=yes],
[dbus_cv___va_copy=no])
])
if test "x$dbus_cv_va_copy" = "xyes"; then
dbus_va_copy_func=va_copy
else if test "x$dbus_cv___va_copy" = "xyes"; then
dbus_va_copy_func=__va_copy
fi
fi
if test -n "$dbus_va_copy_func"; then
AC_DEFINE_UNQUOTED(DBUS_VA_COPY,$dbus_va_copy_func,[A 'va_copy' style function])
fi
AC_LANG_PUSH(C)
AC_CACHE_CHECK([whether va_lists can be copied by value],
dbus_cv_va_val_copy,
[AC_RUN_IFELSE([AC_LANG_PROGRAM(
[[
#include <stdarg.h>
#include <stdlib.h>
]],
[[
static void f (int i, ...) {
va_list args1, args2;
va_start (args1, i);
args2 = args1;
if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
exit (1);
va_end (args1); va_end (args2);
}
int main() {
f (0, 42);
return 0;
}
]])],
[dbus_cv_va_val_copy=yes],
[dbus_cv_va_val_copy=no],
[dbus_cv_va_val_copy=yes])
])
AC_LANG_POP(C)
if test "x$dbus_cv_va_val_copy" = "xno"; then
AC_DEFINE(DBUS_VA_COPY_AS_ARRAY,1, ['va_lists' cannot be copies as values])
fi
#### Atomic integers
AC_CACHE_CHECK([whether $CC knows __sync_sub_and_fetch()],
dbus_cv_sync_sub_and_fetch,
[AC_LINK_IFELSE([
AC_LANG_PROGRAM([[]], [[int a = 4; int b = __sync_sub_and_fetch(&a, 4); exit(b); ]])],
[dbus_cv_sync_sub_and_fetch=yes],
[dbus_cv_sync_sub_and_fetch=no])
])
if test "x$dbus_cv_sync_sub_and_fetch" = "xyes" ; then
have_sync=1
else
have_sync=0
fi
AC_DEFINE_UNQUOTED([DBUS_USE_SYNC], [$have_sync], [Use the gcc __sync extension])
#### Various functions
AC_SEARCH_LIBS(socket,[socket network])
AC_CHECK_FUNC(gethostbyname,,[AC_CHECK_LIB(nsl,gethostbyname)])
AC_CHECK_FUNCS([vsnprintf vasprintf nanosleep usleep setenv clearenv unsetenv socketpair getgrouplist fpathconf setrlimit poll setlocale localeconv strtoll strtoull issetugid getresuid setresuid getrlimit prlimit])
AC_CHECK_HEADERS([syslog.h])
if test "x$ac_cv_header_syslog_h" = "xyes"; then
AC_CHECK_DECLS([LOG_PERROR], [], [], [[#include <syslog.h>]])
fi
# For test-segfault.c
AC_CHECK_HEADERS_ONCE([sys/prctl.h])
AC_CHECK_FUNCS_ONCE([prctl raise])
AC_MSG_CHECKING(for dirfd)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <sys/types.h>
#include <dirent.h>
]], [[
DIR *dirp;
dirp = opendir(".");
dirfd(dirp);
closedir(dirp);
]])],
[dbus_have_dirfd=yes],
[dbus_have_dirfd=no])
AC_MSG_RESULT($dbus_have_dirfd)
if test "$dbus_have_dirfd" = yes; then
AC_DEFINE(HAVE_DIRFD,1,[Have dirfd function])
else
AC_MSG_CHECKING(for DIR *dirp->dd_fd)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <sys/types.h>
#include <dirent.h>
]], [[
DIR *dirp;
int fd;
dirp = opendir(".");
fd = dirp->dd_fd;
closedir(dirp);
]])],
[dbus_have_ddfd=yes],
[dbus_have_ddfd=no])
AC_MSG_RESULT($dbus_have_ddfd)
if test "$dbus_have_ddfd" = yes; then
AC_DEFINE(HAVE_DDFD,1,[Have the ddfd member of DIR])
fi
fi
AC_CHECK_HEADERS(sys/resource.h)
AC_CHECK_HEADERS([sys/time.h])
AC_CHECK_HEADERS(dirent.h)
AC_CHECK_HEADERS([execinfo.h],
[AC_SEARCH_LIBS([backtrace], [execinfo],
[AC_DEFINE([HAVE_BACKTRACE], [1],
[Define to 1 if you have backtrace().])])])
AC_CHECK_HEADERS(errno.h)
AC_CHECK_HEADERS(signal.h)
AC_CHECK_HEADERS(locale.h)
AC_CHECK_HEADERS(byteswap.h)
AC_CHECK_HEADERS(unistd.h)
AC_CHECK_HEADERS([stdint.h])
AC_CHECK_HEADERS(ws2tcpip.h)
AC_CHECK_HEADERS(alloca.h)
# Add -D_POSIX_PTHREAD_SEMANTICS if on Solaris
#
case $host_os in
solaris*)
CFLAGS="$CFLAGS -D_POSIX_PTHREAD_SEMANTICS" ;;
esac
# checking for a posix version of getpwnam_r
# if we are cross compiling and can not run the test
# assume getpwnam_r is the posix version
# it is up to the person cross compiling to change
# this behavior if desired
AC_LANG_PUSH(C)
AC_CACHE_CHECK([for posix getpwnam_r],
ac_cv_func_posix_getpwnam_r,
[AC_RUN_IFELSE([AC_LANG_PROGRAM(
[[
#include <errno.h>
#include <pwd.h>
]],
[[
char buffer[10000];
struct passwd pwd, *pwptr = &pwd;
int error;
errno = 0;
error = getpwnam_r ("", &pwd, buffer,
sizeof (buffer), &pwptr);
return (error < 0 && errno == ENOSYS)
|| error == ENOSYS;
]])],
[ac_cv_func_posix_getpwnam_r=yes],
[ac_cv_func_posix_getpwnam_r=no],
[ac_cv_func_posix_getpwnam_r=yes]
)])
AC_LANG_POP(C)
if test "$ac_cv_func_posix_getpwnam_r" = yes; then
AC_DEFINE(HAVE_POSIX_GETPWNAM_R,1,
[Have POSIX function getpwnam_r])
else
AC_CACHE_CHECK([for nonposix getpwnam_r],
ac_cv_func_nonposix_getpwnam_r,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pwd.h>]], [[char buffer[10000];
struct passwd pwd;
getpwnam_r ("", &pwd, buffer,
sizeof (buffer));]])],
[ac_cv_func_nonposix_getpwnam_r=yes],
[ac_cv_func_nonposix_getpwnam_r=no])])
if test "$ac_cv_func_nonposix_getpwnam_r" = yes; then
AC_DEFINE(HAVE_NONPOSIX_GETPWNAM_R,1,
[Have non-POSIX function getpwnam_r])
fi
fi
dnl check for socklen_t
AC_MSG_CHECKING(whether socklen_t is defined)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
]], [[
socklen_t foo;
foo = 1;
]])],
[dbus_have_socklen_t=yes],
[dbus_have_socklen_t=no])
AC_MSG_RESULT($dbus_have_socklen_t)
if test "x$dbus_have_socklen_t" = "xyes"; then
AC_DEFINE(HAVE_SOCKLEN_T,1,[Have socklen_t type])
fi
dnl check for writev header and writev function so we're
dnl good to go if HAVE_WRITEV gets defined.
AC_CHECK_HEADERS(sys/uio.h, [AC_CHECK_FUNCS(writev)])
dnl needed on darwin for NAME_MAX
AC_CHECK_HEADERS(sys/syslimits.h)
dnl Make it easy to check if we have MSG_NOSIGNAL without actually having to include sys/socket.h
AC_CHECK_DECLS([MSG_NOSIGNAL], [], [], [[ #include <sys/types.h>
#include <sys/socket.h> ]])
dnl check for flavours of varargs macros (test from GLib)
AC_MSG_CHECKING(for ISO C99 varargs macros in C)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
int a(int p1, int p2, int p3);
#define call_a(...) a(1,__VA_ARGS__)
call_a(2,3);
]])],
[dbus_have_iso_c_varargs=yes],
[dbus_have_iso_c_varargs=no])
AC_MSG_RESULT($dbus_have_iso_c_varargs)
AC_MSG_CHECKING(for GNUC varargs macros)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
int a(int p1, int p2, int p3);
#define call_a(params...) a(1,params)
call_a(2,3);
]])],
[dbus_have_gnuc_varargs=yes],
[dbus_have_gnuc_varargs=no])
AC_MSG_RESULT($dbus_have_gnuc_varargs)
dnl Output varargs tests
if test x$dbus_have_iso_c_varargs = xyes; then
AC_DEFINE(HAVE_ISO_VARARGS,1,[Have ISO C99 varargs macros])
fi
if test x$dbus_have_gnuc_varargs = xyes; then
AC_DEFINE(HAVE_GNUC_VARARGS,1,[Have GNU-style varargs macros])
fi
dnl Check for various credentials.
AC_MSG_CHECKING(for struct cmsgcred)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <sys/types.h>
#include <sys/socket.h>
]], [[
struct cmsgcred cred;
cred.cmcred_pid = 0;
]])],
[dbus_have_struct_cmsgcred=yes],
[dbus_have_struct_cmsgcred=no])
AC_MSG_RESULT($dbus_have_struct_cmsgcred)
if test x$dbus_have_struct_cmsgcred = xyes; then
AC_DEFINE(HAVE_CMSGCRED,1,[Have cmsgcred structure])
fi
AC_CHECK_MEMBER([struct unpcbid.unp_pid],
[AC_DEFINE([HAVE_UNPCBID], 1, [Have unpcbid structure])],
[],
[[#include <sys/un.h>]])
AC_CHECK_FUNCS(getpeerucred getpeereid)
AC_CHECK_FUNCS(pipe2 accept4)
PKG_CHECK_MODULES([EXPAT], [expat])
save_cflags="$CFLAGS"
save_libs="$LIBS"
CFLAGS="$CFLAGS $EXPAT_CFLAGS"
LIBS="$LIBS $EXPAT_LIBS"
AC_CHECK_FUNCS([XML_SetHashSalt])
CFLAGS="$save_cflags"
LIBS="$save_libs"
# Thread lib detection
AC_ARG_VAR([THREAD_LIBS])
save_libs="$LIBS"
LIBS="$LIBS $THREAD_LIBS"
is_missing_pthread_function="is required when compiling D-Bus on Unix platforms, but is not in your libc or libpthread. Please open a bug on https://bugs.freedesktop.org/enter_bug.cgi?product=dbus with details of your platform."
# Don't do these automatic checks if the user set THREAD_LIBS on the
# configure command-line. If they did, we assume they're right.
#
# We also don't do these checks on Windows, because you don't need magical
# linker flags to have threading support there.
AS_IF([test "x$dbus_unix" = xyes && test "x$THREAD_LIBS" = x],
[
# Mandatory pthread functions. In principle, some of these could be made
# optional if there are platforms that don't have them.
#
# Currently, we only look in -lpthread.
# In principle we might need to look in -lpthreads, -lthreads, ...
# as well - please file a bug if your platform needs this.
AC_SEARCH_LIBS([pthread_cond_timedwait],
[pthread],
[THREAD_LIBS="$LIBS"],
[AC_MSG_ERROR([pthread_cond_timedwait $is_missing_pthread_function])],
[])
AC_SEARCH_LIBS([pthread_mutexattr_init],
[pthread],
[THREAD_LIBS="$LIBS"],
[AC_MSG_ERROR([pthread_mutexattr_init $is_missing_pthread_function])],
[])
AC_SEARCH_LIBS([pthread_mutexattr_settype],
[pthread],
[THREAD_LIBS="$LIBS"],
[AC_MSG_ERROR([pthread_mutexattr_settype $is_missing_pthread_function])],
[])
# Optional, for monotonic clocks. Because it's optional, this check
# is non-fatal if we don't find it.
AC_SEARCH_LIBS([pthread_condattr_setclock],
[pthread],
[THREAD_LIBS="$LIBS"])
AS_IF([test "x$ac_cv_search_pthread_condattr_setclock" != xno],
[
AC_SEARCH_LIBS([clock_getres], [rt], [THREAD_LIBS="$LIBS"])
AC_MSG_CHECKING([for CLOCK_MONOTONIC])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[#include <time.h>
#include <pthread.h>
]], [[
struct timespec monotonic_timer;
pthread_condattr_t attr;
pthread_condattr_init (&attr);
pthread_condattr_setclock (&attr, CLOCK_MONOTONIC);
clock_getres (CLOCK_MONOTONIC,&monotonic_timer);
]])],
[have_clock_monotonic=true],
[have_clock_monotonic=false])
AS_IF([test x$have_clock_monotonic = xtrue],
[
AC_MSG_RESULT([found])
AC_DEFINE(HAVE_MONOTONIC_CLOCK, 1, [Define if we have CLOCK_MONOTONIC])
],
[AC_MSG_RESULT([not found])])
]) dnl have pthread_condattr_setclock
]) dnl on Unix
LIBS="$save_libs"
AC_SUBST([THREAD_LIBS])
# SELinux detection
if test x$enable_selinux = xno ; then
have_selinux=no;
else
# See if we have SELinux library
PKG_CHECK_MODULES([SELINUX], [libselinux >= 2.0.86],
[have_selinux=yes], [have_selinux=no])
if test x$enable_selinux = xauto ; then
if test x$have_selinux = xno ; then
AC_MSG_WARN([Sufficiently new SELinux library not found])
fi
else
if test x$have_selinux = xno ; then
AC_MSG_ERROR([SElinux explicitly required, and SELinux library not found])
fi
fi
fi
AM_CONDITIONAL(HAVE_SELINUX, test x$have_selinux = xyes)
if test x$have_selinux = xyes ; then
# the selinux code creates threads
# which requires libpthread even on linux
AC_CHECK_FUNC(pthread_create,,[AC_CHECK_LIB(pthread,pthread_create,
[SELINUX_THREAD_LIBS="-lpthread"])])
SELINUX_LIBS="$SELINUX_LIBS $SELINUX_THREAD_LIBS"
AC_DEFINE(HAVE_SELINUX,1,[SELinux support])
else
SELINUX_LIBS=
fi
# AppArmor detection
AS_IF([test x$enable_apparmor = xno],
[have_apparmor=no],
[
PKG_CHECK_MODULES([APPARMOR], [libapparmor >= 2.8.95],
[have_apparmor=yes], [have_apparmor=no])
PKG_CHECK_MODULES([APPARMOR_2_10], [libapparmor >= 2.10],
[have_apparmor_2_10=yes], [have_apparmor_2_10=no])
AS_IF([test x$enable_apparmor = xauto && test x$have_apparmor = xno],
[AC_MSG_WARN([Sufficiently new AppArmor library not found])])
AS_IF([test x$enable_apparmor != xauto && test x$have_apparmor = xno],
[AC_MSG_ERROR([AppArmor explicitly required, and AppArmor library not found])])
])
AS_IF([test x$have_apparmor = xyes],
[AC_DEFINE([HAVE_APPARMOR], [1], [AppArmor Support])])
AS_IF([test x$have_apparmor_2_10 = xyes],
[AC_DEFINE([HAVE_APPARMOR_2_10], [1],
[Define if libapparmor is version 2.10 or later])])
# inotify checks
if test x$enable_inotify = xno ; then
have_inotify=no;
else
AC_CHECK_HEADERS(sys/inotify.h, have_inotify=yes, have_inotify=no)
fi
dnl check if inotify backend is enabled
if test x$have_inotify = xyes; then
AC_DEFINE(DBUS_BUS_ENABLE_INOTIFY,1,[Use inotify])
AC_CHECK_FUNCS(inotify_init1)
fi
AM_CONDITIONAL(DBUS_BUS_ENABLE_INOTIFY, test x$have_inotify = xyes)
# For simplicity, we require the userland API for epoll_create1 at
# compile-time (glibc 2.9), but we'll run on kernels that turn out
# not to have it at runtime.
AC_ARG_ENABLE([epoll],
[AS_HELP_STRING([--enable-epoll],[use epoll(4) on Linux])],
[enable_epoll=$enableval], [enable_epoll=auto])
if test x$enable_epoll = xno; then
have_linux_epoll=no
else
AC_MSG_CHECKING([for Linux epoll(4)])
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[
#ifndef __linux__
#error This is not Linux
#endif
#include <sys/epoll.h>
],
[epoll_create1 (EPOLL_CLOEXEC);])],