File: configure.in

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dnl -*- mode: m4 -*-
AC_PREREQ(2.52)

m4_define([dbus_major_version], [1])
m4_define([dbus_minor_version], [2])
m4_define([dbus_micro_version], [24])
m4_define([dbus_version],
          [dbus_major_version.dbus_minor_version.dbus_micro_version])
AC_INIT(dbus, [dbus_version])

AC_CANONICAL_HOST

AM_INIT_AUTOMAKE([1.9 tar-ustar])
AM_CONFIG_HEADER(config.h)

# Honor aclocal flags
ACLOCAL="$ACLOCAL $ACLOCAL_FLAGS"

GETTEXT_PACKAGE=dbus-1
AC_SUBST(GETTEXT_PACKAGE)
AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE,"$GETTEXT_PACKAGE",[The name of the gettext domain])

 ## must come before we use the $USE_MAINTAINER_MODE variable later
AM_MAINTAINER_MODE

m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])

# 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=7

## increment any time the source changes; set to
##  0 if you increment CURRENT
LT_REVISION=0

## 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=4

AC_SUBST(LT_CURRENT)
AC_SUBST(LT_REVISION)
AC_SUBST(LT_AGE)

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)

AC_PROG_CC
AM_PROG_CC_C_O
AC_PROG_CXX
AC_ISC_POSIX
AC_HEADER_STDC
AC_C_INLINE
AM_PROG_LIBTOOL

AC_ARG_ENABLE(tests, AS_HELP_STRING([--enable-tests],[enable unit test code]),enable_tests=$enableval,enable_tests=$USE_MAINTAINER_MODE)
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=$USE_MAINTAINER_MODE)
AC_ARG_ENABLE(asserts, AS_HELP_STRING([--enable-asserts],[include assertion checks]),enable_asserts=$enableval,enable_asserts=$USE_MAINTAINER_MODE)
AC_ARG_ENABLE(checks, AS_HELP_STRING([--enable-checks],[include sanity checks on public API]),enable_checks=$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(gcov, AS_HELP_STRING([--enable-gcov],[compile with coverage profiling instrumentation (gcc only)]),enable_gcov=$enableval,enable_gcov=no)
AC_ARG_ENABLE(abstract-sockets, AS_HELP_STRING([--enable-abstract-sockets],[use abstract socket namespace (linux only)]),enable_abstract_sockets=$enableval,enable_abstract_sockets=auto)
AC_ARG_ENABLE(selinux, AS_HELP_STRING([--enable-selinux],[build with SELinux support]),enable_selinux=$enableval,enable_selinux=auto)
AC_ARG_ENABLE(libaudit,AS_HELP_STRING([--enable-libaudit],[build audit daemon support for SELinux]),enable_libaudit=$enableval,enable_libaudit=auto)
AC_ARG_ENABLE(dnotify, AS_HELP_STRING([--enable-dnotify],[build with dnotify support (linux only)]),enable_dnotify=$enableval,enable_dnotify=auto)
AC_ARG_ENABLE(inotify, AS_HELP_STRING([--enable-inotify],[build with inotify support (linux only)]),enable_inotify=$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(userdb-cache, AS_HELP_STRING([--enable-userdb-cache],[build with userdb-cache support]),enable_userdb_cache=$enableval,enable_userdb_cache=yes)

AC_ARG_WITH(xml, AS_HELP_STRING([--with-xml=[libxml/expat]],[XML library to use]))
AC_ARG_WITH(init-scripts, AS_HELP_STRING([--with-init-scripts=[redhat]],[Style of init scripts to install]))
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(dbus_user, AS_HELP_STRING([--with-dbus-user=<user>],[User for running the DBUS daemon (messagebus)]))
AC_ARG_WITH(dbus_daemondir, AS_HELP_STRING([--with-dbus-daemondir=[dirname]],[Directory for installing the DBUS daemon]))

AC_DEFINE(DBUS_UNIX,1,[dbus on unix])

dnl DBUS_BUILD_TESTS controls unit tests built in to .c files 
dnl and also some stuff in the test/ subdir
AM_CONDITIONAL(DBUS_BUILD_TESTS, test x$enable_tests = xyes)
if test x$enable_tests = xyes; then
    AC_DEFINE(DBUS_BUILD_TESTS,1,[Build test code])
fi

if test x$enable_verbose_mode = xyes; then
    AC_DEFINE(DBUS_ENABLE_VERBOSE_MODE,1,[Support a verbose mode])
fi

if test x$enable_asserts = xno; then
    AC_DEFINE(DBUS_DISABLE_ASSERT,1,[Disable assertion checking])
    AC_DEFINE(G_DISABLE_ASSERT,1,[Disable GLib assertion macros])
    R_DYNAMIC_LDFLAG=""
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])
fi

if test x$enable_userdb_cache = xyes; then
    AC_DEFINE(DBUS_ENABLE_USERDB_CACHE,1,[Build with caching of user data])
fi

if test x$enable_gcov = xyes; then
     ## so that config.h changes when you toggle gcov support
     AC_DEFINE_UNQUOTED(DBUS_GCOV_ENABLED, 1, [Defined if gcov is enabled to force a rebuild due to config.h changing])

     AC_MSG_CHECKING([for gcc 3.3 version of gcov file format])
     have_gcc33_gcov=no
     AC_RUN_IFELSE( [AC_LANG_PROGRAM( , [[ if (__GNUC__ >=3 && __GNUC_MINOR__ >= 3) exit (0); else exit (1); ]])],  
                   have_gcc33_gcov=yes)
     if test x$have_gcc33_gcov = xyes ; then
         AC_DEFINE_UNQUOTED(DBUS_HAVE_GCC33_GCOV, 1, [Defined if we have gcc 3.3 and thus the new gcov format])
     fi
     AC_MSG_RESULT($have_gcc33_gcov)
fi
AM_CONDITIONAL(DBUS_GCOV_ENABLED, test x$enable_gcov = xyes)

# glibc21.m4 serial 3
dnl Copyright (C) 2000-2002, 2004 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

# Test for the GNU C Library, version 2.1 or newer.
# From Bruno Haible.

AC_CACHE_CHECK(whether we are using the GNU C Library 2.1 or newer,
  ac_cv_gnu_library_2_1,
  [AC_EGREP_CPP([Lucky GNU user],
    [
#include <features.h>
#ifdef __GNU_LIBRARY__
 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2)
  Lucky GNU user
 #endif
#endif
    ],
    ac_cv_gnu_library_2_1=yes,
    ac_cv_gnu_library_2_1=no)
  ]
)

#### 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)'
  dbusint64_printf_modifier='""'
  ;;
$ac_cv_sizeof_long)
  dbusint64=long
  dbusint64_constant='(val##L)'
  dbusuint64_constant='(val##UL)'
  dbusint64_printf_modifier='"l"'
  ;;
$ac_cv_sizeof_long_long)
  dbusint64='long long'
  dbusint64_constant='(val##LL)'
  dbusuint64_constant='(val##ULL)'
  # Ideally we discover what the format is, but this is
  # only used in verbose mode, so eh...
  if test x"$ac_cv_gnu_library_2_1" = xyes; then
    dbusint64_printf_modifier='"ll"'
  fi
  ;;
$ac_cv_sizeof___int64)
  dbusint64=__int64
  dbusint64_constant='(val##i64)'
  dbusuint64_constant='(val##ui64)'
  # See above case
  if test x"$ac_cv_gnu_library_2_1" = xyes; then
    dbusint64_printf_modifier='"ll"'
  fi
  ;;
esac

if test -z "$dbusint64" ; then
        DBUS_INT64_TYPE="no_int64_type_detected"
        DBUS_HAVE_INT64=0
        DBUS_INT64_CONSTANT=
        DBUS_UINT64_CONSTANT=
        AC_MSG_RESULT([none found])
else
        DBUS_INT64_TYPE="$dbusint64"
        DBUS_HAVE_INT64=1
        DBUS_INT64_CONSTANT="$dbusint64_constant"
        DBUS_UINT64_CONSTANT="$dbusuint64_constant"
	if test x"$dbusint64_printf_modifier" != x; then
		AC_DEFINE_UNQUOTED(DBUS_INT64_PRINTF_MODIFIER, [$dbusint64_printf_modifier], [Define to printf modifier for 64 bit integer type])
	fi
        AC_MSG_RESULT($DBUS_INT64_TYPE)
fi

AC_SUBST(DBUS_INT64_TYPE)
AC_SUBST(DBUS_INT64_CONSTANT)
AC_SUBST(DBUS_UINT64_CONSTANT)
AC_SUBST(DBUS_HAVE_INT64)

### see what 32-bit int is called
AC_MSG_CHECKING([32-bit integer type])

case 4 in
$ac_cv_sizeof_short)
  dbusint32=int
  ;;
$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

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([#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([#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 (checks by Sebastian Wilhelmi for GLib)
AC_MSG_CHECKING([whether to use inline assembler routines for atomic integers])
have_atomic_inc_cond=0
if test x"$GCC" = xyes; then
  if test "x$enable_ansi" = "xyes"; then
    AC_MSG_RESULT([no])
  else
    case $host_cpu in
      i386)
        AC_MSG_RESULT([no])
        ;;
      i?86)
        case $host_os in
          darwin*)
            AC_MSG_RESULT([darwin])
            # check at compile-time, so that it is possible to build universal
            # (with multiple architectures at once on the compile line)
            have_atomic_inc_cond="(defined(__i386__) || defined(__x86_64__))"
            ;;
          *)
            AC_MSG_RESULT([i486])
            have_atomic_inc_cond=1
            ;;
        esac
        ;;
      *)
        AC_MSG_RESULT([no])
        ;;
    esac
  fi
fi
AC_DEFINE_UNQUOTED([DBUS_USE_ATOMIC_INT_486_COND], [$have_atomic_inc_cond],
                   [Always defined; expands to 1 if we should use atomic integer implementation for 486, else 0])
AC_DEFINE_UNQUOTED(DBUS_HAVE_ATOMIC_INT_COND, [$have_atomic_inc_cond],
                   [Always defined; expands to 1 if we have an atomic integer implementation, else 0])

#### 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 issetugid getresuid)

#### Check for broken poll; taken from Glib's configure

AC_MSG_CHECKING([for broken poll])
AC_RUN_IFELSE([AC_LANG_SOURCE([[
    #include <stdlib.h>
    #include <fcntl.h>
    #include <poll.h>
    #ifdef HAVE_SYS_POLL_H
    #include <sys/poll.h>
    #endif
    int main(void) {
      struct pollfd fds[1];
      int fd;
      fd = open("/dev/null", 1);
      fds[0].fd = fd;
      fds[0].events = POLLIN;
      fds[0].revents = 0;
      if (poll(fds, 1, 0) < 0 || (fds[0].revents & POLLNVAL) != 0) {
            exit(1);  /* Does not work for devices -- fail */
      }
      exit(0);
    }]])],
  [broken_poll=no],
  [broken_poll=yes
   AC_DEFINE(BROKEN_POLL,1,[poll doesn't work on devices])],
  [broken_poll="no (cross compiling)"])
AC_MSG_RESULT($broken_poll)

AC_MSG_CHECKING(for dirfd)
AC_TRY_LINK([
#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_TRY_LINK([
#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(execinfo.h, [AC_CHECK_FUNCS(backtrace)])

AC_CHECK_HEADERS(errno.h)

AC_CHECK_HEADERS(unistd.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 "$ac_cv_func_posix_getpwnam_r" = yes; then
	AC_DEFINE(HAVE_POSIX_GETPWNAM_R,1,
		[Have POSIX function getpwnam_r])
else
	AC_CACHE_CHECK([for nonposix getpwnam_r],
		ac_cv_func_nonposix_getpwnam_r,
		[AC_TRY_LINK([#include <pwd.h>],
                      	[char buffer[10000];
                       	struct passwd pwd;
                       	getpwnam_r ("", &pwd, buffer, 
                               		sizeof (buffer));],
			[ac_cv_func_nonposix_getpwnam_r=yes],
			[ac_cv_func_nonposix_getpwnam_r=no])])
		if test "$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_TRY_COMPILE([
#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 check for flavours of varargs macros (test from GLib)
AC_MSG_CHECKING(for ISO C99 varargs macros in C)
AC_TRY_COMPILE([],[
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_TRY_COMPILE([],[
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_TRY_COMPILE([
#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_FUNCS(getpeerucred getpeereid)

#### Abstract sockets

if test x$enable_abstract_sockets = xauto; then
AC_LANG_PUSH(C)
warn_on_xcompile=no
AC_CACHE_CHECK([abstract socket namespace],
		ac_cv_have_abstract_sockets,
		[AC_RUN_IFELSE([AC_LANG_PROGRAM(
[[
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <errno.h>
]],
[[
  int listen_fd;
  struct sockaddr_un addr;
  
  listen_fd = socket (PF_UNIX, SOCK_STREAM, 0);
  
  if (listen_fd < 0)
    {
      fprintf (stderr, "socket() failed: %s\n", strerror (errno));
      exit (1);
    }

  memset (&addr, '\0', sizeof (addr));
  addr.sun_family = AF_UNIX;
  strcpy (addr.sun_path, "X/tmp/dbus-fake-socket-path-used-in-configure-test");
  addr.sun_path[0] = '\0'; /* this is what makes it abstract */
  
  if (bind (listen_fd, (struct sockaddr*) &addr, SUN_LEN (&addr)) < 0)
    {
       fprintf (stderr, "Abstract socket namespace bind() failed: %s\n", 
                strerror (errno));
       exit (1);
    }
  else 
    exit (0);
]])],
              [ac_cv_have_abstract_sockets=yes],
              [ac_cv_have_abstract_sockets=no],
              [
                ac_cv_have_abstract_sockets=no
                warn_on_xcompile=yes
              ]
)])
if test x$warn_on_xcompile = xyes ; then
  AC_MSG_WARN([Cannot check for abstract sockets when cross-compiling, please use --enable-abstract-sockets])
fi
AC_LANG_POP(C)
fi

if test x$enable_abstract_sockets = xyes; then
    if test x$ac_cv_have_abstract_sockets = xno; then
	AC_MSG_ERROR([Abstract sockets explicitly required, and support not detected.])
    fi
fi

if test x$enable_abstract_sockets = xno; then
   ac_cv_have_abstract_sockets=no;
fi

if test x$ac_cv_have_abstract_sockets = xyes ; then
   DBUS_PATH_OR_ABSTRACT=abstract
   AC_DEFINE(HAVE_ABSTRACT_SOCKETS,1,[Have abstract socket namespace])
else
   DBUS_PATH_OR_ABSTRACT=path
fi

# this is used in addresses to prefer abstract, e.g. 
# unix:path=/foo or unix:abstract=/foo 
AC_SUBST(DBUS_PATH_OR_ABSTRACT)

#### Sort out XML library

# see what we have
AC_CHECK_LIB(expat, XML_ParserCreate_MM,
             [ AC_CHECK_HEADERS(expat.h, have_expat=true, have_expat=false) ],
             have_expat=false)

# see what we want to use
dbus_use_libxml=false
dbus_use_expat=false
if test x$with_xml = xexpat; then
        if ! $have_expat ; then
           AC_MSG_ERROR([Explicitly requested expat but expat not found])
        fi
        dbus_use_expat=true
elif test x$with_xml = xlibxml; then
        PKG_CHECK_MODULES(LIBXML, libxml-2.0 >= 2.6.0, have_libxml=true, have_libxml=false)
        if ! $have_libxml ; then
           AC_MSG_ERROR([Explicitly requested libxml but libxml not found])
        fi
        dbus_use_libxml=true
else
        ### expat is the default because libxml can't currently survive 
        ### our brutal OOM-handling unit test setup.
        ### http://bugzilla.gnome.org/show_bug.cgi?id=109368
        if test x$have_expat = xfalse; then
                AC_MSG_ERROR([Could not find expat.h, check config.log for failed attempts])
        fi
	### By default, only use Expat since it's tested and known to work.  If you're a
	### general-purpose OS vendor, please don't enable libxml.  For embedded use
	### if your OS is built around libxml, that's another case.
	dbus_use_expat=true
fi

AM_CONDITIONAL(DBUS_USE_EXPAT, $dbus_use_expat)
AM_CONDITIONAL(DBUS_USE_LIBXML, $dbus_use_libxml)

if $dbus_use_expat; then
   XML_LIBS=-lexpat
   XML_CFLAGS=
fi
if $dbus_use_libxml; then
   XML_LIBS=$LIBXML_LIBS
   XML_CFLAGS=$LIBXML_CFLAGS
fi

# Thread lib detection
AC_CHECK_FUNC(pthread_cond_timedwait,[AC_CHECK_LIB(pthread,pthread_cond_timedwait,
                                                    [THREAD_LIBS="-lpthread"])])
save_libs="$LIBS"
LIBS="$LIBS $THREAD_LIBS"
AC_CHECK_FUNC(pthread_condattr_setclock,have_pthread_condattr_setclock=true,have_pthread_condattr_setclock=false)
if test x$have_pthread_condattr_setclock = xtrue; then
    AC_SEARCH_LIBS([clock_getres],[rt],[THREAD_LIBS="$THREAD_LIBS -lrt"])
    AC_MSG_CHECKING([for CLOCK_MONOTONIC])
    AC_TRY_COMPILE([#include <time.h>
#include <pthread.h>
], [
struct timespec monotonic_timer;
pthread_condattr_t attr;
pthread_condattr_init (&attr);
pthread_condattr_setclock (&attr, CLOCK_MONOTONIC);
clock_getres (CLOCK_MONOTONIC,&monotonic_timer);
], have_clock_monotonic=true, have_clock_monotonic=false)
if test x$have_clock_monotonic = xtrue; then
    AC_MSG_RESULT([found])
    AC_DEFINE(HAVE_MONOTONIC_CLOCK, 1, [Define if we have CLOCK_MONOTONIC])
else
    AC_MSG_RESULT([not found])
fi
fi
LIBS="$save_libs"

# SELinux detection
if test x$enable_selinux = xno ; then
    have_selinux=no;
else
    # See if we have SELinux library
    AC_CHECK_LIB(selinux, is_selinux_enabled, 
                 have_selinux=yes, have_selinux=no)

    # see if we have the SELinux header with the new D-Bus stuff in it
    if test x$have_selinux = xyes ; then
        AC_MSG_CHECKING([for DBUS Flask permissions in selinux/av_permissions.h])
	AC_TRY_COMPILE([#include <selinux/av_permissions.h>],
			[#ifdef DBUS__ACQUIRE_SVC return 0;
			 #else
			 #error DBUS__ACQUIRE_SVC not defined
			 #endif],
                        have_selinux=yes, have_selinux=no)
	AC_MSG_RESULT($have_selinux)
    fi

    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="-lselinux $SELINUX_THREAD_LIBS"
    AC_DEFINE(HAVE_SELINUX,1,[SELinux support])
else
    SELINUX_LIBS=
fi

# 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)

# dnotify checks
if test x$enable_dnotify = xno ; then
    have_dnotify=no;
else
    if test x$have_inotify = xno -a x$host_os = xlinux-gnu -o x$host_os = xlinux; then
        have_dnotify=yes;	
    else
        have_dnotify=no;
    fi
fi

dnl check if dnotify backend is enabled
if test x$have_dnotify = xyes; then
   AC_DEFINE(DBUS_BUS_ENABLE_DNOTIFY_ON_LINUX,1,[Use dnotify on Linux])
fi

AM_CONDITIONAL(DBUS_BUS_ENABLE_DNOTIFY_ON_LINUX, test x$have_dnotify = xyes)

# kqueue checks
if test x$enable_kqueue = xno ; then
    have_kqueue=no
else
    have_kqueue=yes
    AC_CHECK_HEADER(sys/event.h, , have_kqueue=no)
    AC_CHECK_FUNC(kqueue, , have_kqueue=no)

    if test x$enable_kqueue = xyes -a x$have_kqueue = xno; then
        AC_MSG_ERROR(kqueue support explicitly enabled but not available)
    fi
fi

dnl check if kqueue backend is enabled
if test x$have_kqueue = xyes; then
   AC_DEFINE(DBUS_BUS_ENABLE_KQUEUE,1,[Use kqueue])
fi

AM_CONDITIONAL(DBUS_BUS_ENABLE_KQUEUE, test x$have_kqueue = xyes) 

dnl console owner file
if test x$enable_console_owner_file = xno ; then
    have_console_owner_file=no;
else
    case $host_os in
    solaris*)
        have_console_owner_file=yes;
        AC_DEFINE(HAVE_CONSOLE_OWNER_FILE,1,[Have console owner file])
        ;;
    *)
        have_console_owner_file=no;;
    esac
fi

AM_CONDITIONAL(HAVE_CONSOLE_OWNER_FILE, test x$have_console_owner_file = xyes)

# libaudit detection
if test x$enable_libaudit = xno ; then
    have_libaudit=no;
else
    # See if we have audit daemon & capabilities library
    AC_CHECK_LIB(audit, audit_log_user_avc_message, 
                 have_libaudit=yes, have_libaudit=no)
    if test x$have_libaudit = xyes ; then
        AC_CHECK_LIB(cap-ng, capng_clear,
                 have_libaudit=yes, have_libaudit=no)
    fi
fi

AM_CONDITIONAL(HAVE_LIBAUDIT, test x$have_libaudit = xyes)

if test x$have_libaudit = xyes ; then
    SELINUX_LIBS="$SELINUX_LIBS -laudit -lcap-ng"
    AC_DEFINE(HAVE_LIBAUDIT,1,[audit daemon SELinux support])
fi

# Check for ADT API
AC_MSG_CHECKING(for ADT API)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <bsm/adt.h>
adt_user_context = ADT_USER;
]], [[]])], [ check_adt_audit=yes ], [ check_adt_audit=no ])

if test ${check_adt_audit} = yes
then
   AC_DEFINE([HAVE_ADT], [], [Adt audit API])
   ADT_LIBS="-lbsm"
   LIBS="-lbsm $LIBS"
   AC_MSG_RESULT(yes)
else
   AC_MSG_RESULT(no)
fi


#### Set up final flags
DBUS_CLIENT_CFLAGS=
DBUS_CLIENT_LIBS="$THREAD_LIBS"
AC_SUBST(DBUS_CLIENT_CFLAGS)
AC_SUBST(DBUS_CLIENT_LIBS)

DBUS_BUS_CFLAGS="$XML_CFLAGS"
DBUS_BUS_LIBS="$XML_LIBS $SELINUX_LIBS $INTLLIBS $THREAD_LIBS $ADT_LIBS"
AC_SUBST(DBUS_BUS_CFLAGS)
AC_SUBST(DBUS_BUS_LIBS)

DBUS_LAUNCHER_CFLAGS="$XML_CFLAGS"
DBUS_LAUNCHER_LIBS="$XML_LIBS $THREAD_LIBS"
AC_SUBST(DBUS_LAUNCHER_CFLAGS)
AC_SUBST(DBUS_LAUNCHER_LIBS)

DBUS_TEST_CFLAGS=
DBUS_TEST_LIBS="$THREAD_LIBS"
AC_SUBST(DBUS_TEST_CFLAGS)
AC_SUBST(DBUS_TEST_LIBS)

### X11 detection
AC_PATH_XTRA

## for now enable_x11 just tracks have_x11, 
## there's no --enable-x11
if test x$no_x = xyes ; then
   have_x11=no
   enable_x11=no
else
   have_x11=yes
   enable_x11=yes
fi

if test x$enable_x11 = xyes ; then
   AC_DEFINE(DBUS_BUILD_X11,1,[Build X11-dependent code])
   DBUS_X_LIBS="$X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
   DBUS_X_CFLAGS="$X_CFLAGS"
else
   DBUS_X_LIBS=
   DBUS_X_CFLAGS=
fi

AC_SUBST(DBUS_X_CFLAGS)
AC_SUBST(DBUS_X_LIBS)


#### gcc warning flags

cc_supports_flag() {
  AC_MSG_CHECKING(whether $CC supports "$@")
  Cfile=/tmp/foo${$}
  touch ${Cfile}.c
  $CC -c "$@" ${Cfile}.c -o ${Cfile}.o >/dev/null 2>&1
  rc=$?
  rm -f ${Cfile}.c ${Cfile}.o
  case $rc in
    0) AC_MSG_RESULT(yes);;
    *) AC_MSG_RESULT(no);;
  esac
  return $rc
}

ld_supports_flag() {
  AC_MSG_CHECKING([whether $LD supports "$@"])
  AC_TRY_LINK([
    int one(void) { return 1; }
    int two(void) { return 2; }
  ], [ two(); ] , [_ac_ld_flag_supported=yes], [_ac_ld_flag_supported=no])

  if test "$_ac_ld_flag_supported" = "yes"; then
    rm -f conftest.c
    touch conftest.c
    if $CC -c conftest.c; then
      ld_out=`$LD $@ -o conftest conftest.o 2>&1`
      ld_ret=$?
      if test $ld_ret -ne 0 ; then
        _ac_ld_flag_supported=no
      elif echo "$ld_out" | egrep 'option ignored|^usage:|unrecognized option|illegal option' >/dev/null ; then
        _ac_ld_flag_supported=no
      fi
    fi
    rm -f conftest.c conftest.o conftest
  fi

  AC_MSG_RESULT($_ac_ld_flag_supported)
  if test "$_ac_ld_flag_supported" = "yes" ; then
    return 0
  else
    return 1
  fi
}

if test x$USE_MAINTAINER_MODE = xyes; then
  if cc_supports_flag "-Werror"; then
    CFLAGS="$CFLAGS -Werror"
  fi
fi

if test "x$GCC" = "xyes"; then
  changequote(,)dnl
  case " $CFLAGS " in
  *[\ \	]-Wall[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wall" ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-Wchar-subscripts[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wchar-subscripts" ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-Wmissing-declarations[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wmissing-declarations" ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-Wmissing-prototypes[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wmissing-prototypes" ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-Wnested-externs[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wnested-externs" ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-Wpointer-arith[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wpointer-arith" ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-Wcast-align[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wcast-align" ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-Wfloat-equal[\ \	]*) ;;
  *) if cc_supports_flag -Wfloat-equals; then
        CFLAGS="$CFLAGS -Wfloat-equal" 
     fi
     ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-Wdeclaration-after-statement[\ \	]*) ;;
  *) if cc_supports_flag -Wdeclaration-after-statement; then
        CFLAGS="$CFLAGS -Wdeclaration-after-statement"
     fi
     ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-fno-common[\ \	]*) ;;
  *) if cc_supports_flag -fno-common; then
        CFLAGS="$CFLAGS -fno-common"
     fi
     ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-fPIC[\ \	]*) ;;
  *) if cc_supports_flag -fPIC; then
        PIC_CFLAGS="-fPIC"
        if ld_supports_flag -z,relro; then
           PIC_LDFLAGS="-Wl,-z,relro"
        fi
     fi
     ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-fPIE[\ \	]*) ;;
  *) if cc_supports_flag -fPIE; then
        PIE_CFLAGS="-fPIE"
        if ld_supports_flag -z,relro; then
           PIE_LDFLAGS="-pie -Wl,-z,relro"
        else
           PIE_LDFLAGS="-pie"
        fi
     fi
     ;;
  esac
  
  ### Disabled warnings, and compiler flag overrides
  
  # Let's just ignore unused for now
  case " $CFLAGS " in
  *[\ \	]-Wno-unused[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wno-unused" ;;
  esac  
  
  # This group is for warnings we currently don't pass.
  # We would like to, however.  Please fix.
  
  # http://bugs.freedesktop.org/show_bug.cgi?id=17433
  case " $CFLAGS " in
  *[\ \	]-Wno-sign-compare[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wno-sign-compare" ;;
  esac
  case " $CFLAGS " in
  *[\ \	]-Wno-pointer-sign[\ \	]*) ;;
  *) if cc_supports_flag -Wno-pointer-sign; then
        CFLAGS="$CFLAGS -Wno-pointer-sign"
     fi
     ;;
  esac
  
  # This one is special - it's not a warning override.
  # http://bugs.freedesktop.org/show_bug.cgi?id=10599
  case " $CFLAGS " in
  *[\ \	]-fno-strict-aliasing[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -fno-strict-aliasing" ;;
  esac
  ### End disabled warnings

  if test "x$enable_ansi" = "xyes"; then
    case " $CFLAGS " in
    *[\ \	]-ansi[\ \	]*) ;;
    *) CFLAGS="$CFLAGS -ansi" ;;
    esac

    case " $CFLAGS " in
    *[\ \	]-D_POSIX_C_SOURCE*) ;;
    *) CFLAGS="$CFLAGS -D_POSIX_C_SOURCE=199309L" ;;
    esac

    case " $CFLAGS " in
    *[\ \	]-D_BSD_SOURCE[\ \	]*) ;;
    *) CFLAGS="$CFLAGS -D_BSD_SOURCE" ;;
    esac

    case " $CFLAGS " in
    *[\ \	]-pedantic[\ \	]*) ;;
    *) CFLAGS="$CFLAGS -pedantic" ;;
    esac    
  fi
  if test x$enable_gcov = xyes; then
    case " $CFLAGS " in
    *[\ \	]-fprofile-arcs[\ \	]*) ;;
    *) CFLAGS="$CFLAGS -fprofile-arcs" ;;
    esac
    case " $CFLAGS " in
    *[\ \	]-ftest-coverage[\ \	]*) ;;
    *) CFLAGS="$CFLAGS -ftest-coverage" ;;
    esac

    ## remove optimization
    CFLAGS=`echo "$CFLAGS" | sed -e 's/-O[0-9]*//g'`
  fi
  changequote([,])dnl
else
  if test x$enable_gcov = xyes; then
    AC_MSG_ERROR([--enable-gcov can only be used with gcc])
  fi
fi

AC_SUBST(PIC_CFLAGS)
AC_SUBST(PIC_LDFLAGS)  
AC_SUBST(PIE_CFLAGS)
AC_SUBST(PIE_LDFLAGS)  

if ld_supports_flag --gc-sections; then
  SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
  CFLAGS="-ffunction-sections -fdata-sections $CFLAGS"
fi
AC_SUBST(SECTION_FLAGS)
AC_SUBST(SECTION_LDFLAGS)
AC_MSG_RESULT($ac_gcsections)

changequote(,)dnl
# compress spaces in flags
CFLAGS=`echo "$CFLAGS" | sed -e 's/ +/ /g'`
CXXFLAGS=`echo "$CXXFLAGS" | sed -e 's/ +/ /g'`
CPPFLAGS=`echo "$CPPFLAGS" | sed -e 's/ +/ /g'`
changequote([,])dnl

### Doxygen Documentation

AC_PATH_PROG(DOXYGEN, doxygen, no)

AC_MSG_CHECKING([whether to build Doxygen documentation])

if test x$DOXYGEN = xno ; then
    have_doxygen=no
else
    have_doxygen=yes
fi

if test x$enable_doxygen_docs = xauto ; then
    if test x$have_doxygen = xno ; then
        enable_doxygen_docs=no
    else
        enable_doxygen_docs=yes
    fi
fi

if test x$enable_doxygen_docs = xyes; then
    if test x$have_doxygen = xno; then
	AC_MSG_ERROR([Building Doxygen docs explicitly required, but Doxygen not found])
    fi
fi

AM_CONDITIONAL(DBUS_DOXYGEN_DOCS_ENABLED, test x$enable_doxygen_docs = xyes)
AC_MSG_RESULT(yes)

### XML Documentation

AC_PATH_PROG(XMLTO, xmlto, no)

AC_MSG_CHECKING([whether to build XML documentation])

if test x$XMLTO = xno ; then
    have_xmlto=no
else
    have_xmlto=yes
fi

if test x$enable_xml_docs = xauto ; then
    if test x$have_xmlto = xno ; then
        enable_xml_docs=no
    else
        enable_xml_docs=yes
    fi
fi

if test x$enable_xml_docs = xyes; then
    if test x$have_xmlto = xno; then
	AC_MSG_ERROR([Building XML docs explicitly required, but xmlto not found])
    fi
fi

AM_CONDITIONAL(DBUS_XML_DOCS_ENABLED, test x$enable_xml_docs = xyes)
AC_MSG_RESULT(yes)

#### Have to go $localstatedir->$prefix/var->/usr/local/var

#### find the actual value for $prefix that we'll end up with
##   (I know this is broken and should be done in the Makefile, but
##    that's a major pain and almost nobody actually seems to care)
AS_AC_EXPAND(EXPANDED_LOCALSTATEDIR, "$localstatedir")
AS_AC_EXPAND(EXPANDED_SYSCONFDIR, "$sysconfdir")
AS_AC_EXPAND(EXPANDED_BINDIR, "$bindir")
AS_AC_EXPAND(EXPANDED_LIBDIR, "$libdir")
AS_AC_EXPAND(EXPANDED_LIBEXECDIR, "$libexecdir")
AS_AC_EXPAND(EXPANDED_DATADIR, "$datadir")

#### Check our operating system
operating_system=unknown
if test -f /etc/redhat-release || test -f $EXPANDED_SYSCONFDIR/redhat-release ; then
   operating_system=redhat
fi

if test -f /etc/slackware-version || test -f $EXPANDED_SYSCONFDIR/slackware-version ; then
   operating_system=slackware
fi

#### Sort out init scripts

if test x$with_init_scripts = x; then
    if test xredhat = x$operating_system ; then
        with_init_scripts=redhat
    else
        if test xslackware = x$operating_system ; then
        	with_init_scripts=slackware
	    else
        	with_init_scripts=none
        fi
    fi
fi

AM_CONDITIONAL(DBUS_INIT_SCRIPTS_RED_HAT, test x$with_init_scripts = xredhat)

AM_CONDITIONAL(DBUS_INIT_SCRIPTS_SLACKWARE, test x$with_init_scripts = xslackware)

##### Set up location for system bus socket
if ! test -z "$with_system_socket"; then
   DBUS_SYSTEM_SOCKET=$with_system_socket
else
   DBUS_SYSTEM_SOCKET=${EXPANDED_LOCALSTATEDIR}/run/dbus/system_bus_socket
fi

AC_SUBST(DBUS_SYSTEM_SOCKET)
AC_DEFINE_UNQUOTED(DBUS_SYSTEM_SOCKET,"$DBUS_SYSTEM_SOCKET",[The name of the socket the system bus listens on by default])

## system bus only listens on local domain sockets, and never 
## on an abstract socket (so only root can create the socket)
DBUS_SYSTEM_BUS_DEFAULT_ADDRESS="unix:path=$DBUS_SYSTEM_SOCKET"
AC_SUBST(DBUS_SYSTEM_BUS_DEFAULT_ADDRESS)
AC_DEFINE_UNQUOTED(DBUS_SYSTEM_BUS_DEFAULT_ADDRESS, "$DBUS_SYSTEM_BUS_DEFAULT_ADDRESS",[The default D-Bus address of the system bus])

#### Set up the pid file
if ! test -z "$with_system_pid_file"; then
   DBUS_SYSTEM_PID_FILE=$with_system_pid_file
elif test x$with_init_scripts = xredhat ; then
   DBUS_SYSTEM_PID_FILE=${EXPANDED_LOCALSTATEDIR}/run/messagebus.pid
else
   DBUS_SYSTEM_PID_FILE=${EXPANDED_LOCALSTATEDIR}/run/dbus/pid
fi

AC_SUBST(DBUS_SYSTEM_PID_FILE)

#### Directory to check for console ownership
if ! test -z "$with_console_auth_dir"; then
   DBUS_CONSOLE_AUTH_DIR=$with_console_auth_dir
else
   DBUS_CONSOLE_AUTH_DIR=/var/run/console/
fi

AC_SUBST(DBUS_CONSOLE_AUTH_DIR)
AC_DEFINE_UNQUOTED(DBUS_CONSOLE_AUTH_DIR, "$DBUS_CONSOLE_AUTH_DIR", [Directory to check for console ownerhip])

#### File to check for console ownership
if test x$have_console_owner_file = xyes; then
   if ! test -z "$with_console_owner_file"; then
      DBUS_CONSOLE_OWNER_FILE=$with_console_owner_file
   else
      DBUS_CONSOLE_OWNER_FILE=/dev/console
   fi
else
  DBUS_CONSOLE_OWNER_FILE=
fi

AC_SUBST(DBUS_CONSOLE_OWNER_FILE)
AC_DEFINE_UNQUOTED(DBUS_CONSOLE_OWNER_FILE, "$DBUS_CONSOLE_OWNER_FILE", [File to check for console ownerhip])

#### User to start the system bus as
if test -z "$with_dbus_user" ; then
    DBUS_USER=messagebus
else
    DBUS_USER=$with_dbus_user
fi
AC_SUBST(DBUS_USER)
AC_DEFINE_UNQUOTED(DBUS_USER,"$DBUS_USER", [User for running the system BUS daemon])

#### Direcotry to install data files into
DBUS_DATADIR=$EXPANDED_DATADIR
AC_SUBST(DBUS_DATADIR)
AC_DEFINE_UNQUOTED(DBUS_DATADIR,"$DBUS_DATADIR", [Directory for installing DBUS data files])

#### Directory to install dbus-daemon
if test -z "$with_dbus_daemondir" ; then
    DBUS_DAEMONDIR=$EXPANDED_BINDIR
else
    DBUS_DAEMONDIR=$with_dbus_daemondir
fi
AC_SUBST(DBUS_DAEMONDIR)
AC_DEFINE_UNQUOTED(DBUS_DAEMONDIR,"$DBUS_DAEMONDIR", [Directory for installing the DBUS daemon])

#### Directory to install the other binaries
DBUS_BINDIR="$EXPANDED_BINDIR"
AC_SUBST(DBUS_BINDIR)
AC_DEFINE_UNQUOTED(DBUS_BINDIR,"$DBUS_BINDIR", [Directory for installing the binaries])

#### Directory to install the libexec binaries
DBUS_LIBEXECDIR="$EXPANDED_LIBEXECDIR"
AC_SUBST(DBUS_LIBEXECDIR)
AC_DEFINE_UNQUOTED(DBUS_LIBEXECDIR,"$DBUS_LIBEXECDIR", [Directory for installing the libexec binaries])

#### Tell tests where to find certain stuff in builddir

DBUS_PWD=`pwd`
AC_DEFUN([TEST_PATH], [
TEST_$1=${DBUS_PWD}/test/$2
AC_DEFINE_UNQUOTED(TEST_$1, "$TEST_$1",
                   [Full path to test file test/$2 in builddir])
AC_SUBST(TEST_$1)
])

TEST_PATH(VALID_SERVICE_DIR, data/valid-service-files)
TEST_PATH(INVALID_SERVICE_DIR, data/invalid-service-files)
TEST_PATH(VALID_SERVICE_SYSTEM_DIR, data/valid-service-files-system)
TEST_PATH(INVALID_SERVICE_SYSTEM_DIR, data/invalid-service-files-system)
TEST_PATH(SERVICE_BINARY, test-service)
TEST_PATH(SHELL_SERVICE_BINARY, test-shell-service)
TEST_PATH(EXIT_BINARY, test-exit)
TEST_PATH(SEGFAULT_BINARY, test-segfault)
TEST_PATH(SLEEP_FOREVER_BINARY, test-sleep-forever)
TEST_PATH(PRIVSERVER_BINARY, name-test/test-privserver)

AC_DEFINE_UNQUOTED(TEST_BUS_BINARY, "$DBUS_PWD/bus/dbus-daemon",
                   [Full path to the daemon in the builddir])
AC_SUBST(TEST_BUS_BINARY)

## Export the non-setuid external helper
TEST_LAUNCH_HELPER_BINARY="$DBUS_PWD/bus/dbus-daemon-launch-helper-test"
AC_SUBST(TEST_LAUNCH_HELPER_BINARY)
AC_DEFINE_UNQUOTED(DBUS_TEST_LAUNCH_HELPER_BINARY, "$TEST_LAUNCH_HELPER_BINARY",
                   [Full path to the launch helper test program in the builddir])

#### Find socket directories
if ! test -z "$TMPDIR" ; then
   DEFAULT_SOCKET_DIR=$TMPDIR
elif ! test -z "$TEMP" ; then
   DEFAULT_SOCKET_DIR=$TEMP
elif ! test -z "$TMP" ; then
   DEFAULT_SOCKET_DIR=$TMP
else
   DEFAULT_SOCKET_DIR=/tmp
fi

if ! test -z "$with_test_socket_dir" ; then
   TEST_SOCKET_DIR="$with_test_socket_dir"
else
   TEST_SOCKET_DIR=$DEFAULT_SOCKET_DIR
fi
AC_SUBST(TEST_SOCKET_DIR)
AC_DEFINE_UNQUOTED(DBUS_TEST_SOCKET_DIR, "$TEST_SOCKET_DIR", [Where to put test sockets])

if ! test -z "$with_session_socket_dir" ; then
   DBUS_SESSION_SOCKET_DIR="$with_session_socket_dir"
else
   DBUS_SESSION_SOCKET_DIR=$DEFAULT_SOCKET_DIR
fi
AC_DEFINE_UNQUOTED(DBUS_SESSION_SOCKET_DIR, "$DBUS_SESSION_SOCKET_DIR", [Where per-session bus puts its sockets])
AC_SUBST(DBUS_SESSION_SOCKET_DIR)

AC_DEFINE_UNQUOTED(DBUS_UNIX, "1", [Defined on UNIX and Linux systems and not on Windows])

# darwin needs this to initialize the environment
AC_CHECK_HEADERS(crt_externs.h)
AC_CHECK_FUNC(_NSGetEnviron, [AC_DEFINE(HAVE_NSGETENVIRON, 1, [Define if your system needs _NSGetEnviron to set up the environment])])
AH_VERBATIM(_DARWIN_ENVIRON,
[
#if defined(HAVE_NSGETENVIRON) && defined(HAVE_CRT_EXTERNS_H)
# include <sys/time.h>
# include <crt_externs.h>
# define environ (*_NSGetEnviron())
#endif
])

AC_OUTPUT([
Doxyfile
dbus/dbus-arch-deps.h
bus/system.conf
bus/session.conf
bus/messagebus
bus/rc.messagebus
bus/dbus-daemon.1
Makefile
dbus/Makefile
bus/Makefile
tools/Makefile
test/Makefile
test/name-test/Makefile
doc/Makefile
dbus-1.pc
test/data/valid-config-files/debug-allow-all.conf
test/data/valid-config-files/debug-allow-all-sha1.conf
test/data/valid-config-files-system/debug-allow-all-pass.conf
test/data/valid-config-files-system/debug-allow-all-fail.conf
test/data/valid-service-files/org.freedesktop.DBus.TestSuite.PrivServer.service
test/data/valid-service-files/org.freedesktop.DBus.TestSuiteEchoService.service
test/data/valid-service-files/org.freedesktop.DBus.TestSuiteForkingEchoService.service
test/data/valid-service-files/org.freedesktop.DBus.TestSuiteSegfaultService.service
test/data/valid-service-files/org.freedesktop.DBus.TestSuiteShellEchoServiceSuccess.service
test/data/valid-service-files/org.freedesktop.DBus.TestSuiteShellEchoServiceFail.service
test/data/valid-service-files-system/org.freedesktop.DBus.TestSuiteEchoService.service
test/data/valid-service-files-system/org.freedesktop.DBus.TestSuiteSegfaultService.service
test/data/valid-service-files-system/org.freedesktop.DBus.TestSuiteShellEchoServiceSuccess.service
test/data/valid-service-files-system/org.freedesktop.DBus.TestSuiteShellEchoServiceFail.service
test/data/invalid-service-files-system/org.freedesktop.DBus.TestSuiteNoExec.service
test/data/invalid-service-files-system/org.freedesktop.DBus.TestSuiteNoUser.service
test/data/invalid-service-files-system/org.freedesktop.DBus.TestSuiteNoService.service
])

dnl ==========================================================================
echo "
                    D-Bus $VERSION
                  ==============

	prefix:                   ${prefix}
	exec_prefix:              ${exec_prefix}
        libdir:                   ${EXPANDED_LIBDIR}
        libexecdir:               ${EXPANDED_LIBEXECDIR}
        bindir:                   ${EXPANDED_BINDIR}
        sysconfdir:               ${EXPANDED_SYSCONFDIR}
        localstatedir:            ${EXPANDED_LOCALSTATEDIR}
	datadir:                  ${EXPANDED_DATADIR}
	source code location:	  ${srcdir}
	compiler:		  ${CC}
	cflags:		          ${CFLAGS}
	cppflags:		  ${CPPFLAGS}
	cxxflags:		  ${CXXFLAGS}
	64-bit int:		  ${DBUS_INT64_TYPE}
	32-bit int:		  ${DBUS_INT32_TYPE}
	16-bit int:		  ${DBUS_INT16_TYPE}
        Doxygen:                  ${DOXYGEN}
        xmlto:                    ${XMLTO}"

echo "
        Maintainer mode:          ${USE_MAINTAINER_MODE}
        gcc coverage profiling:   ${enable_gcov}
        Building unit tests:      ${enable_tests}
        Building verbose mode:    ${enable_verbose_mode}
        Building assertions:      ${enable_asserts}
        Building checks:          ${enable_checks}
        Building SELinux support: ${have_selinux}
        Building inotify support: ${have_inotify}
        Building dnotify support: ${have_dnotify}
        Building kqueue support:  ${have_kqueue}
        Building X11 code:        ${enable_x11}
        Building Doxygen docs:    ${enable_doxygen_docs}
        Building XML docs:        ${enable_xml_docs}
        Building cache support:   ${enable_userdb_cache}
        Gettext libs (empty OK):  ${INTLLIBS}
        Using XML parser:         ${with_xml}
        Init scripts style:       ${with_init_scripts}
        Abstract socket names:    ${ac_cv_have_abstract_sockets}
        System bus socket:        ${DBUS_SYSTEM_SOCKET}
        System bus address:       ${DBUS_SYSTEM_BUS_DEFAULT_ADDRESS}
        System bus PID file:      ${DBUS_SYSTEM_PID_FILE}
        Session bus socket dir:   ${DBUS_SESSION_SOCKET_DIR}
        Console auth dir:         ${DBUS_CONSOLE_AUTH_DIR}
        Console owner file:       ${have_console_owner_file}
        Console owner file path:  ${DBUS_CONSOLE_OWNER_FILE}
	System bus user:          ${DBUS_USER}
	Session bus services dir: ${EXPANDED_DATADIR}/dbus-1/services
        'make check' socket dir:  ${TEST_SOCKET_DIR}
"

if test x$enable_tests = xyes; then
        echo "NOTE: building with unit tests increases the size of the installed library and renders it insecure."
fi
if test x$enable_tests = xyes -a x$enable_asserts = xno; then
        echo "NOTE: building with unit tests but without assertions means tests may not properly report failures (this configuration is only useful when doing something like profiling the tests)"
fi
if test x$enable_gcov = xyes; then
        echo "NOTE: building with coverage profiling is definitely for developers only."
fi
if test x$enable_verbose_mode = xyes; then
        echo "NOTE: building with verbose mode increases library size, may slightly increase security risk, and decreases performance."
fi
if test x$enable_asserts = xyes; then
        echo "NOTE: building with assertions increases library size and decreases performance."
fi
if test x$enable_checks = xno; then
        echo "NOTE: building without checks for arguments passed to public API makes it harder to debug apps using D-Bus, but will slightly decrease D-Bus library size and _very_ slightly improve performance."
fi
if test x$dbus_use_libxml = xtrue; then
        echo
	echo "WARNING: You have chosen to use libxml as your xml parser however this code path is not maintained by the D-Bus developers and if it breaks you get to keep the pieces.  If you have selected this option in err please reconfigure with expat (e.g. --with-xml=expat)."
fi