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dnl -*- mode: m4 -*-
AC_PREREQ(2.52)
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m4_define([dbus_major_version], [1])
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m4_define([dbus_minor_version], [4])
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m4_define([dbus_micro_version], [7])
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m4_define([dbus_version],
          [dbus_major_version.dbus_minor_version.dbus_micro_version])
AC_INIT(dbus, [dbus_version])
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AC_CANONICAL_HOST
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AC_LIBTOOL_WIN32_DLL
AC_LIBTOOL_RC
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AC_CONFIG_MACRO_DIR([m4])

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

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

GETTEXT_PACKAGE=dbus-1
AC_SUBST(GETTEXT_PACKAGE)
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AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE,"$GETTEXT_PACKAGE",[The name of the gettext domain])
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 ## must come before we use the $USE_MAINTAINER_MODE variable later
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AM_MAINTAINER_MODE

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

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AC_DEFINE_UNQUOTED(DBUS_DAEMON_NAME,"dbus-daemon",[Name of executable])

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# libtool versioning - this applies to libdbus
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#
# See http://sources.redhat.com/autobook/autobook/autobook_91.html#SEC91 for details
#
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## increment if the interface has additions, changes, removals.
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LT_CURRENT=8
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## increment any time the source changes; set to
##  0 if you increment CURRENT
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LT_REVISION=4
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## 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.
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LT_AGE=5
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AC_SUBST(LT_CURRENT)
AC_SUBST(LT_REVISION)
AC_SUBST(LT_AGE)

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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)
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AC_PROG_CC
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AM_PROG_CC_C_O
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AC_PROG_CXX
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AC_USE_SYSTEM_EXTENSIONS
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AC_ISC_POSIX
AC_HEADER_STDC
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AC_C_INLINE
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AM_PROG_LIBTOOL
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AC_PROG_MKDIR_P
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COMPILER_COVERAGE
COMPILER_OPTIMISATIONS
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# Set some internal variables depending on the platform for later use.
dbus_win=no
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dbus_cygwin=no
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dbus_unix=no
case "${host}" in
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    *-mingw32ce*)
        dbus_win=yes
        dbus_wince=yes
        ;;
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    *-mingw32*)
        dbus_win=yes
        ;;
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    *-cygwin*)
        dbus_cygwin=yes
        dbus_unix=yes
        ;;
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    *)
        dbus_unix=yes
       ;;
esac

# Special defines for certain platforms
if test "$dbus_win" = yes; then
    AC_DEFINE(DBUS_WIN,1,[Defined if we run on a W32 API based system])
    BUILD_TIMESTAMP=`date --iso-8601=minutes`
    AC_SUBST(BUILD_TIMESTAMP)
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    # Assume DBUS_VERSION is always three numbers
    BUILD_FILEVERSION=`echo "$DBUS_VERSION" | sed -e 's/\./,/g'`,0
    AC_SUBST(BUILD_FILEVERSION)
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    AC_CHECK_TOOL(WINDRES, windres, no)
    if test "$WINDRES" = no; then
      AC_MSG_ERROR([*** Could not find an implementation of windres in your PATH.])
    fi
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    if test "$dbus_wince" = yes; then
      AC_DEFINE(DBUS_WINCE,1,[Defined if we run on a W32 CE API based system])
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      AC_DEFINE(_WIN32_WCE, 0x0502, [Defined to get newer W32 CE APIs])
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    fi
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else
    AC_DEFINE(DBUS_UNIX,1,[Defined if we run on a Unix-based system])
fi
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if test "$dbus_cygwin" = yes; then
    AC_DEFINE(DBUS_CYGWIN,1,[Defined if we run on a cygwin API based system])
fi
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AM_CONDITIONAL(DBUS_WIN, test "$dbus_win" = yes)
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AM_CONDITIONAL(DBUS_WINCE, test "$dbus_wince" = yes)
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AM_CONDITIONAL(DBUS_UNIX, test "$dbus_unix" = yes)
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AM_CONDITIONAL(DBUS_CYGWIN, test "$dbus_cygwin" = yes)
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AC_ARG_ENABLE(tests, AS_HELP_STRING([--enable-tests],[enable unit test code in the library and binaries]),enable_tests=$enableval,enable_tests=$USE_MAINTAINER_MODE)
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AC_ARG_ENABLE(ansi, AS_HELP_STRING([--enable-ansi],[enable -ansi -pedantic gcc flags]),enable_ansi=$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=$enableval,enable_doxygen_docs=auto)
AC_ARG_ENABLE(abstract-sockets, AS_HELP_STRING([--enable-abstract-sockets],[use abstract socket namespace (linux only)]),enable_abstract_sockets=$enableval,enable_abstract_sockets=auto)
AC_ARG_ENABLE(selinux, AS_HELP_STRING([--enable-selinux],[build with SELinux support]),enable_selinux=$enableval,enable_selinux=auto)
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AC_ARG_ENABLE(libaudit,AS_HELP_STRING([--enable-libaudit],[build audit daemon support for SELinux]),enable_libaudit=$enableval,enable_libaudit=auto)
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AC_ARG_ENABLE(dnotify, AS_HELP_STRING([--enable-dnotify],[build with dnotify support (linux only)]),enable_dnotify=$enableval,enable_dnotify=auto)
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AC_ARG_ENABLE(inotify, AS_HELP_STRING([--enable-inotify],[build with inotify support (linux only)]),enable_inotify=$enableval,enable_inotify=auto)
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AC_ARG_ENABLE(kqueue, AS_HELP_STRING([--enable-kqueue],[build with kqueue support]),enable_kqueue=$enableval,enable_kqueue=auto)
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AC_ARG_ENABLE(console-owner-file, AS_HELP_STRING([--enable-console-owner-file],[enable console owner file]),enable_console_owner_file=$enableval,enable_console_owner_file=auto)
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AC_ARG_ENABLE(userdb-cache, AS_HELP_STRING([--enable-userdb-cache],[build with userdb-cache support]),enable_userdb_cache=$enableval,enable_userdb_cache=yes)
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AC_ARG_ENABLE(launchd, AS_HELP_STRING([--enable-launchd],[build with launchd auto-launch support]),enable_launchd=$enableval,enable_launchd=auto)
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AC_ARG_WITH(xml, AS_HELP_STRING([--with-xml=[libxml/expat]],[XML library to use (libxml may be named libxml2 on some systems)]))
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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]))
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AC_ARG_WITH(console-owner-file, AS_HELP_STRING([--with-console-owner-file=[filename]],[file whose owner determines current console owner]))
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AC_ARG_WITH(launchd-agent-dir, AS_HELP_STRING([--with-launchd-agent-dir=[dirname]],[directory to put the launchd agent (default: /Library/LaunchAgents)]))
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AC_ARG_WITH(dbus_user, AS_HELP_STRING([--with-dbus-user=<user>],[User for running the DBUS daemon (messagebus)]))
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AC_ARG_WITH(dbus_daemondir, AS_HELP_STRING([--with-dbus-daemondir=[dirname]],[Directory for installing the DBUS daemon]))
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dnl DBUS_BUILD_TESTS controls unit tests built in to .c files
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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
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if test x$enable_verbose_mode = xyes; then
    AC_DEFINE(DBUS_ENABLE_VERBOSE_MODE,1,[Support a verbose mode])
fi
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if test x$enable_asserts = xno; then
    AC_DEFINE(DBUS_DISABLE_ASSERT,1,[Disable assertion checking])
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    AC_DEFINE(G_DISABLE_ASSERT,1,[Disable GLib assertion macros])
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    R_DYNAMIC_LDFLAG=""
else
    # -rdynamic is needed for glibc's backtrace_symbols to work.
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    # No clue how much overhead this adds, but it's useful
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    # 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
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fi
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AC_SUBST(R_DYNAMIC_LDFLAG)

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if test x$enable_checks = xno; then
    AC_DEFINE(DBUS_DISABLE_CHECKS,1,[Disable public API sanity checking])
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    AC_DEFINE(G_DISABLE_CHECKS,1,[Disable GLib public API sanity checking])
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fi
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if test x$enable_userdb_cache = xyes; then
    AC_DEFINE(DBUS_ENABLE_USERDB_CACHE,1,[Build with caching of user data])
fi

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if test x$enable_compiler_coverage = xyes; then
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     ## 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])
fi

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# 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)
  ]
)

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#### Integer sizes
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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)

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### See what our 64 bit type is called
AC_MSG_CHECKING([64-bit integer type])

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case 8 in
$ac_cv_sizeof_int)
  dbusint64=int
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  dbusint64_constant='(val)'
  dbusuint64_constant='(val)'
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  dbusint64_printf_modifier='""'
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  ;;
$ac_cv_sizeof_long)
  dbusint64=long
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  dbusint64_constant='(val##L)'
  dbusuint64_constant='(val##UL)'
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  dbusint64_printf_modifier='"l"'
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  ;;
$ac_cv_sizeof_long_long)
  dbusint64='long long'
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  dbusint64_constant='(val##LL)'
  dbusuint64_constant='(val##ULL)'
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  # Ideally we discover what the format is, but this is
  # only used in verbose mode, so eh...
  if test x"$ac_cv_gnu_library_2_1" = xyes; then
    dbusint64_printf_modifier='"ll"'
  fi
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  ;;
$ac_cv_sizeof___int64)
  dbusint64=__int64
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  dbusint64_constant='(val##i64)'
  dbusuint64_constant='(val##ui64)'
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  # See above case
  if test x"$ac_cv_gnu_library_2_1" = xyes; then
    dbusint64_printf_modifier='"ll"'
  fi
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  ;;
esac

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

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

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## byte order
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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
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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>
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#include <stdlib.h>
	static void f (int i, ...) {
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	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>
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#include <stdlib.h>
	static void f (int i, ...) {
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	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

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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>
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	#include <stdlib.h>
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]],
[[
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	static void f (int i, ...) {
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	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;
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	}
]])],
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	[dbus_cv_va_val_copy=yes],
	[dbus_cv_va_val_copy=no],
	[dbus_cv_va_val_copy=yes])
])
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AC_LANG_POP(C)
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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


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#### Atomic integers

AC_CACHE_CHECK([whether $CC knows __sync_sub_and_fetch()],
  dbus_cv_sync_sub_and_fetch,
  [AC_LINK_IFELSE(
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     AC_LANG_PROGRAM([], [[int a = 4; int b = __sync_sub_and_fetch(&a, 4); exit(b); ]]),
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     [dbus_cv_sync_sub_and_fetch=yes],
     [dbus_cv_sync_sub_and_fetch=no])
  ])

if test "x$dbus_cv_sync_sub_and_fetch" = "xyes" ; then
   have_sync=1
else
   have_sync=0
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fi
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AC_DEFINE_UNQUOTED([DBUS_USE_SYNC], [$have_sync], [Use the gcc __sync extension])
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#### Various functions
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AC_SEARCH_LIBS(socket,[socket network])
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AC_CHECK_FUNC(gethostbyname,,[AC_CHECK_LIB(nsl,gethostbyname)])
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AC_CHECK_FUNCS(vsnprintf vasprintf nanosleep usleep setenv clearenv unsetenv socketpair getgrouplist fpathconf setrlimit poll setlocale localeconv strtoll strtoull)
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#### 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($broken_poll)
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AC_MSG_CHECKING(for dirfd)
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AC_TRY_LINK([
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#include <sys/types.h>
#include <dirent.h>
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],[
DIR *dirp;
dirp = opendir(".");
dirfd(dirp);
closedir(dirp);
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],
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dbus_have_dirfd=yes, dbus_have_dirfd=no)
AC_MSG_RESULT($dbus_have_dirfd)
if test "$dbus_have_dirfd" = yes; then
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	AC_DEFINE(HAVE_DIRFD,1,[Have dirfd function])
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else
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	AC_MSG_CHECKING(for DIR *dirp->dd_fd)
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	AC_TRY_LINK([
#include <sys/types.h>
#include <dirent.h>
	],[
DIR *dirp;
int fd;
dirp = opendir(".");
fd = dirp->dd_fd;
closedir(dirp);
	],
	dbus_have_ddfd=yes, dbus_have_ddfd=no)
	AC_MSG_RESULT($dbus_have_ddfd)
	if test "$dbus_have_ddfd" = yes; then
		AC_DEFINE(HAVE_DDFD,1,[Have the ddfd member of DIR])
	fi
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fi
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AC_CHECK_HEADERS(sys/resource.h)

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AC_CHECK_HEADERS(dirent.h)

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AC_CHECK_HEADERS(execinfo.h, [AC_CHECK_FUNCS(backtrace)])

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AC_CHECK_HEADERS(errno.h)

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AC_CHECK_HEADERS(signal.h)

AC_CHECK_HEADERS(locale.h)

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AC_CHECK_HEADERS(byteswap.h)

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AC_CHECK_HEADERS(unistd.h)

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AC_CHECK_HEADERS(ws2tcpip.h)

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AC_CHECK_HEADERS(wspiapi.h)

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# Add -D_POSIX_PTHREAD_SEMANTICS if on Solaris
#
case $host_os in
    solaris*)
       CFLAGS="$CFLAGS -D_POSIX_PTHREAD_SEMANTICS" ;;
esac
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# 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
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AC_LANG_PUSH(C)
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AC_CACHE_CHECK([for posix getpwnam_r],
		ac_cv_func_posix_getpwnam_r,
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		[AC_RUN_IFELSE([AC_LANG_PROGRAM(
[[
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#include <errno.h>
#include <pwd.h>
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]],
[[
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    char buffer[10000];
    struct passwd pwd, *pwptr = &pwd;
    int error;
    errno = 0;
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    error = getpwnam_r ("", &pwd, buffer,
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                        sizeof (buffer), &pwptr);
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   return (error < 0 && errno == ENOSYS)
	   || error == ENOSYS;
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]])],
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	[ac_cv_func_posix_getpwnam_r=yes],
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	[ac_cv_func_posix_getpwnam_r=no],
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        [ac_cv_func_posix_getpwnam_r=yes]
)])
AC_LANG_POP(C)

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if test "$ac_cv_func_posix_getpwnam_r" = yes; then
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        AC_DEFINE(HAVE_POSIX_GETPWNAM_R,1,
                [Have POSIX function getpwnam_r])
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else
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        AC_CACHE_CHECK([for nonposix getpwnam_r],
                ac_cv_func_nonposix_getpwnam_r,
                [AC_TRY_LINK([#include <pwd.h>],
                        [char buffer[10000];
                        struct passwd pwd;
                        getpwnam_r ("", &pwd, buffer,
                                        sizeof (buffer));],
                        [ac_cv_func_nonposix_getpwnam_r=yes],
                        [ac_cv_func_nonposix_getpwnam_r=no])])
                if test "$ac_cv_func_nonposix_getpwnam_r" = yes; then
                AC_DEFINE(HAVE_NONPOSIX_GETPWNAM_R,1,
                        [Have non-POSIX function getpwnam_r])
        fi
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fi
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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

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dnl check for writev header and writev function so we're
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dnl good to go if HAVE_WRITEV gets defined.
AC_CHECK_HEADERS(sys/uio.h, [AC_CHECK_FUNCS(writev)])

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dnl needed on darwin for NAME_MAX
AC_CHECK_HEADERS(sys/syslimits.h)

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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/socket.h> ]])

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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

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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
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AC_CHECK_FUNCS(getpeerucred getpeereid)
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AC_CHECK_FUNCS(pipe2 accept4)
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#### Abstract sockets

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if test x$enable_abstract_sockets = xauto; then
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AC_LANG_PUSH(C)
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warn_on_xcompile=no
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AC_CACHE_CHECK([abstract socket namespace],
		ac_cv_have_abstract_sockets,
		[AC_RUN_IFELSE([AC_LANG_PROGRAM(
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[[
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <errno.h>
]],
[[
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  size_t slen;
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  int listen_fd;
  struct sockaddr_un addr;
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  listen_fd = socket (PF_UNIX, SOCK_STREAM, 0);
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  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");
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  /* SUN_LEN uses strlen() so need to calculate it before adding \0 at the
   * beginning.
   */
  slen = SUN_LEN(&addr);
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  addr.sun_path[0] = '\0'; /* this is what makes it abstract */
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  if (bind (listen_fd, (struct sockaddr*) &addr, slen) < 0)
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    {
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       fprintf (stderr, "Abstract socket namespace bind() failed: %s\n",
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                strerror (errno));
       exit (1);
    }
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  else
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    exit (0);
]])],
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              [ac_cv_have_abstract_sockets=yes],
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              [ac_cv_have_abstract_sockets=no],
              [
                ac_cv_have_abstract_sockets=no
                warn_on_xcompile=yes
              ]
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)])
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if test x$warn_on_xcompile = xyes ; then
  AC_MSG_WARN([Cannot check for abstract sockets when cross-compiling, please use --enable-abstract-sockets])
fi
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AC_LANG_POP(C)
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fi
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if test x$enable_abstract_sockets = xyes; then
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    if test x$ac_cv_have_abstract_sockets = xno; then
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	AC_MSG_ERROR([Abstract sockets explicitly required, and support not detected.])
    fi
fi

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

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

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

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PKG_PROG_PKG_CONFIG

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#### Sort out XML library

# see what we have
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AC_CHECK_LIB(expat, XML_ParserCreate_MM,
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             [ 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 ! $have_expat ; then
           AC_MSG_ERROR([Explicitly requested expat but expat not found])
        fi
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        dbus_use_expat=true
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elif test x$with_xml = xlibxml; then
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        PKG_CHECK_MODULES(LIBXML, libxml-2.0 >= 2.6.0, have_libxml=true, have_libxml=false)
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        if ! $have_libxml ; then
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           AC_MSG_ERROR([Explicitly requested libxml but libxml not found])
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        fi
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        dbus_use_libxml=true
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else
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        ### expat is the default because libxml can't currently survive
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        ### our brutal OOM-handling unit test setup.
        ### http://bugzilla.gnome.org/show_bug.cgi?id=109368
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        if test x$have_expat = xfalse; then
                AC_MSG_ERROR([Could not find expat.h, check config.log for failed attempts])
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        fi
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	### 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
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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

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# Thread lib detection
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AC_CHECK_FUNC(pthread_cond_timedwait,[AC_CHECK_LIB(pthread,pthread_cond_timedwait,
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                                                    [THREAD_LIBS="-lpthread"])])
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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="$save_libs"
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# SELinux detection
if test x$enable_selinux = xno ; then
    have_selinux=no;
else
    # See if we have SELinux library
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    AC_CHECK_LIB(selinux, is_selinux_enabled,
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                 have_selinux=yes, have_selinux=no)

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    # see if we have the SELinux header with the new D-Bus stuff in it
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    if test x$have_selinux = xyes ; then
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        AC_MSG_CHECKING([for DBUS Flask permissions in selinux/av_permissions.h])
	AC_TRY_COMPILE([#include <selinux/av_permissions.h>],
			[#ifdef DBUS__ACQUIRE_SVC return 0;
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			 #else
			 #error DBUS__ACQUIRE_SVC not defined
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			 #endif],
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                        have_selinux=yes, have_selinux=no)
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	AC_MSG_RESULT($have_selinux)
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    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
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    else
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        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
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    # 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"
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    AC_DEFINE(HAVE_SELINUX,1,[SELinux support])
else
    SELINUX_LIBS=
fi

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# 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])
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   AC_CHECK_FUNCS(inotify_init1)
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fi

AM_CONDITIONAL(DBUS_BUS_ENABLE_INOTIFY, test x$have_inotify = xyes)

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# dnotify checks
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if test x$enable_dnotify = xno ; then
    have_dnotify=no;
else
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    if test x$have_inotify = xno -a x$host_os = xlinux-gnu -o x$host_os = xlinux; then
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        have_dnotify=yes;
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    else
        have_dnotify=no;
    fi
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fi
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dnl check if dnotify backend is enabled
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if test x$have_dnotify = xyes; then
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   AC_DEFINE(DBUS_BUS_ENABLE_DNOTIFY_ON_LINUX,1,[Use dnotify on Linux])
fi

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AM_CONDITIONAL(DBUS_BUS_ENABLE_DNOTIFY_ON_LINUX, test x$have_dnotify = xyes)

# kqueue checks
if test x$enable_kqueue = xno ; then
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    have_kqueue=no
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else
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    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
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fi

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

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AM_CONDITIONAL(DBUS_BUS_ENABLE_KQUEUE, test x$have_kqueue = xyes)
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# launchd checks
if test x$enable_launchd = xno ; then
    have_launchd=no
else
    have_launchd=yes
    AC_CHECK_HEADER([launch.h], , have_launchd=no)
    AC_PATH_PROG([LAUNCHCTL], [launchctl])
    if test "x$LAUNCHCTL" = "x"; then
        have_launchd=no
    fi

    if test x$enable_launchd = xyes && test x$have_launchd = xno ; then
        AC_MSG_ERROR([launchd support explicitly enabled but not available])
    fi
fi

dnl check if launchd is enabled
if test x$have_launchd = xyes; then
    AC_DEFINE(DBUS_ENABLE_LAUNCHD,1,[Use launchd autolaunch])
fi

AM_CONDITIONAL(DBUS_ENABLE_LAUNCHD, test x$have_launchd = xyes)

#### Directory to place launchd agent file
if test "x$with_launchd_agent_dir" = "x"; then
   LAUNCHD_AGENT_DIR="/Library/LaunchAgents"
else
   LAUNCHD_AGENT_DIR="$with_launchd_agent_dir"
fi

AC_SUBST(LAUNCHD_AGENT_DIR)

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dnl console owner file
if test x$enable_console_owner_file = xno ; then
    have_console_owner_file=no;
else
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    case $host_os in
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    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)

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

AM_CONDITIONAL(HAVE_LIBAUDIT, test x$have_libaudit = xyes)

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

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# 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

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# Check for SCM_RIGHTS
AC_MSG_CHECKING([for SCM_RIGHTS])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <sys/socket.h>
#include <sys/un.h>
static int x = SCM_RIGHTS;
]], [[]])],
[ AC_MSG_RESULT([supported])
  AC_DEFINE([HAVE_UNIX_FD_PASSING], [1], [Supports sending UNIX file descriptors]) ],
[ AC_MSG_RESULT([not supported]) ])
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NETWORK_libs=
if test x$dbus_win = xyes ; then
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  if test x$dbus_wince = xyes ; then
    NETWORK_libs="-lws2"
  else
    NETWORK_libs="-lws2_32"
  fi
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fi

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

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DBUS_BUS_CFLAGS="$XML_CFLAGS"
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DBUS_BUS_LIBS="$XML_LIBS $SELINUX_LIBS $THREAD_LIBS $ADT_LIBS $NETWORK_libs"
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AC_SUBST(DBUS_BUS_CFLAGS)
AC_SUBST(DBUS_BUS_LIBS)
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DBUS_LAUNCHER_CFLAGS="$XML_CFLAGS"
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DBUS_LAUNCHER_LIBS="$XML_LIBS $THREAD_LIBS $NETWORK_libs"
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AC_SUBST(DBUS_LAUNCHER_CFLAGS)
AC_SUBST(DBUS_LAUNCHER_LIBS)

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

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### X11 detection
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if test x$dbus_win = xyes ; then
   enable_x11=no
else
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AC_PATH_XTRA

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## for now enable_x11 just tracks have_x11,
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## 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$enable_x11 = xyes ; then
   AC_DEFINE(DBUS_BUILD_X11,1,[Build X11-dependent code])
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   DBUS_X_LIBS="$X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
   DBUS_X_CFLAGS="$X_CFLAGS"
else
   DBUS_X_LIBS=
   DBUS_X_CFLAGS=
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fi

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AC_SUBST(DBUS_X_CFLAGS)
AC_SUBST(DBUS_X_LIBS)
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fi
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#### gcc warning flags

cc_supports_flag() {
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  AC_MSG_CHECKING(whether $CC supports "$*")
  save_CFLAGS="$CFLAGS"
  CFLAGS="$*"
  AC_TRY_COMPILE([], [], [rc=yes], [rc=no])
  CFLAGS="$save_CFLAGS"
  AC_MSG_RESULT([$rc])
  test "x$rc" = xyes
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}

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
}

1125
# Don't bother with -Werror on Windows for now, too many warnings
1126
if test x$dbus_win != xyes -a x$dbus_cygwin != xyes -a x$USE_MAINTAINER_MODE = xyes; then
1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168
  if cc_supports_flag "-Werror"; then
    CFLAGS="$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

1169 1170 1171 1172 1173
  case " $CFLAGS " in
  *[\ \	]-Wno-address[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wno-address" ;;
  esac

1174 1175
  case " $CFLAGS " in
  *[\ \	]-Wfloat-equal[\ \	]*) ;;
1176
  *) if cc_supports_flag -Wfloat-equal; then
1177
        CFLAGS="$CFLAGS -Wfloat-equal"
1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199
     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 " $CFLAGS " in
  *[\ \	]-fPIC[\ \	]*) ;;
1200
  *) if test x$dbus_win = xno && cc_supports_flag -fPIC; then
1201 1202 1203 1204 1205 1206 1207 1208 1209 1210
        PIC_CFLAGS="-fPIC"
        if ld_supports_flag -z,relro; then
           PIC_LDFLAGS="-Wl,-z,relro"
        fi
     fi
     ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-fPIE[\ \	]*) ;;
1211
  *) if test x$dbus_win = xno && cc_supports_flag -fPIE; then
1212 1213 1214 1215 1216 1217 1218 1219 1220
        PIE_CFLAGS="-fPIE"
        if ld_supports_flag -z,relro; then
           PIE_LDFLAGS="-pie -Wl,-z,relro"
        else
           PIE_LDFLAGS="-pie"
        fi
     fi
     ;;
  esac
1221

1222
  ### Disabled warnings, and compiler flag overrides
1223

1224 1225 1226 1227
  # Let's just ignore unused for now
  case " $CFLAGS " in
  *[\ \	]-Wno-unused[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wno-unused" ;;
1228 1229
  esac

1230 1231
  # This group is for warnings we currently don't pass.
  # We would like to, however.  Please fix.
1232

1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244
  # 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
1245

1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272
  # 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" ;;
1273
    esac
1274 1275 1276 1277 1278
  fi
  changequote([,])dnl
fi

AC_SUBST(PIC_CFLAGS)
1279
AC_SUBST(PIC_LDFLAGS)
1280
AC_SUBST(PIE_CFLAGS)
1281
AC_SUBST(PIE_LDFLAGS)
1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292

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)

case $host_os in
    solaris*)
1293 1294
        # Solaris' C library apparently needs these runes to be threadsafe...
        CFLAGS="$CFLAGS -D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT"
1295
esac
1296

1297 1298 1299 1300 1301 1302 1303
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

1304
### Doxygen Documentation
1305 1306 1307

AC_PATH_PROG(DOXYGEN, doxygen, no)

1308
AC_MSG_CHECKING([whether to build Doxygen documentation])
1309

1310 1311
if test x$DOXYGEN = xno ; then
    have_doxygen=no
1312
else
1313
    have_doxygen=yes
1314 1315
fi

1316 1317 1318
if test x$enable_doxygen_docs = xauto ; then
    if test x$have_doxygen = xno ; then
        enable_doxygen_docs=no
1319
    else
1320
        enable_doxygen_docs=yes
1321 1322 1323
    fi
fi