gecko-dev/configure.in

dnl -*- Mode: Autoconf; tab-width: 4; indent-tabs-mode: nil; -*-
dnl vi: set tabstop=4 shiftwidth=4 expandtab:
dnl ***** BEGIN LICENSE BLOCK *****
dnl Version: MPL 1.1/GPL 2.0/LGPL 2.1
dnl
dnl The contents of this file are subject to the Mozilla Public License Version
dnl 1.1 (the "License"); you may not use this file except in compliance with
dnl the License. You may obtain a copy of the License at
dnl http://www.mozilla.org/MPL/
dnl
dnl Software distributed under the License is distributed on an "AS IS" basis,
dnl WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
dnl for the specific language governing rights and limitations under the
dnl License.
dnl
dnl The Original Code is this file as it was released upon August 6, 1998.
dnl
dnl The Initial Developer of the Original Code is
dnl Christopher Seawood.
dnl Portions created by the Initial Developer are Copyright (C) 1998-2001
dnl the Initial Developer. All Rights Reserved.
dnl
dnl Contributor(s):
dnl   Jamie Zawinski <jwz@jwz.org>
dnl   gettimeofday args check
dnl   Christopher Blizzard <blizzard@appliedtheory.com>
dnl   gnomefe update & enable-pthreads
dnl   Ramiro Estrugo <ramiro@netscape.com>
dnl   X11 makedepend support
dnl   Insure support.
dnl   Henry Sobotka <sobotka@axess.com>
dnl   OS/2 support
dnl   Dan Mosedale <dmose@mozilla.org>
dnl   LDAP support
dnl   Seth Spitzer <sspitzer@netscape.com>
dnl   xpctools support
dnl   Benjamin Smedberg <benjamin@smedbergs.us>
dnl   Howard Chu <hyc@symas.com>
dnl   MSYS support
dnl   Mark Mentovai <mark@moxienet.com>:
dnl   Mac OS X 10.4 support
dnl   Giorgio Maone <g.maone@informaction.com>
dnl   MSVC l10n compatible version check
dnl   Ben Turner <mozilla@songbirdnest.com>
dnl
dnl Alternatively, the contents of this file may be used under the terms of
dnl either the GNU General Public License Version 2 or later (the "GPL"), or
dnl the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
dnl in which case the provisions of the GPL or the LGPL are applicable instead
dnl of those above. If you wish to allow use of your version of this file only
dnl under the terms of either the GPL or the LGPL, and not to allow others to
dnl use your version of this file under the terms of the MPL, indicate your
dnl decision by deleting the provisions above and replace them with the notice
dnl and other provisions required by the GPL or the LGPL. If you do not delete
dnl the provisions above, a recipient may use your version of this file under
dnl the terms of any one of the MPL, the GPL or the LGPL.
dnl
dnl ***** END LICENSE BLOCK *****

dnl Process this file with autoconf to produce a configure script.
dnl ========================================================

AC_PREREQ(2.13)
AC_INIT(config/config.mk)
AC_CONFIG_AUX_DIR(${srcdir}/build/autoconf)
AC_CANONICAL_SYSTEM
TARGET_CPU="${target_cpu}"
TARGET_VENDOR="${target_vendor}"
TARGET_OS="${target_os}"

dnl ========================================================
dnl =
dnl = Don't change the following two lines.  Doing so breaks:
dnl =
dnl = CFLAGS="-foo" ./configure
dnl =
dnl ========================================================
CFLAGS="${CFLAGS=}"
CPPFLAGS="${CPPFLAGS=}"
CXXFLAGS="${CXXFLAGS=}"
LDFLAGS="${LDFLAGS=}"
HOST_CFLAGS="${HOST_CFLAGS=}"
HOST_CXXFLAGS="${HOST_CXXFLAGS=}"
HOST_LDFLAGS="${HOST_LDFLAGS=}"

dnl ========================================================
dnl = Preserve certain environment flags passed to configure
dnl = We want sub projects to receive the same flags
dnl = untainted by this configure script
dnl ========================================================
_SUBDIR_CC="$CC"
_SUBDIR_CXX="$CXX"
_SUBDIR_CFLAGS="$CFLAGS"
_SUBDIR_CPPFLAGS="$CPPFLAGS"
_SUBDIR_CXXFLAGS="$CXXFLAGS"
_SUBDIR_LDFLAGS="$LDFLAGS"
_SUBDIR_HOST_CC="$HOST_CC"
_SUBDIR_HOST_CFLAGS="$HOST_CFLAGS"
_SUBDIR_HOST_CXXFLAGS="$HOST_CXXFLAGS"
_SUBDIR_HOST_LDFLAGS="$HOST_LDFLAGS"
_SUBDIR_CONFIG_ARGS="$ac_configure_args"

dnl Set the version number of the libs included with mozilla
dnl ========================================================
MOZJPEG=62
MOZPNG=10217
MOZZLIB=0x1230
NSPR_VERSION=4
NSS_VERSION=3

dnl Set the minimum version of toolkit libs used by mozilla
dnl ========================================================
GLIB_VERSION=1.2.0
LIBIDL_VERSION=0.6.3
PERL_VERSION=5.006
LIBART_VERSION=2.3.4
CAIRO_VERSION=1.4.2
GLITZ_VERSION=0.4.0
PANGO_VERSION=1.10.0
GTK2_VERSION=1.8.0
MAKE_VERSION=3.78
WINDRES_VERSION=2.14.90
W32API_VERSION=3.8
GNOMEVFS_VERSION=2.0
GNOMEUI_VERSION=2.2.0
GCONF_VERSION=1.2.1
LIBGNOME_VERSION=2.0
STARTUP_NOTIFICATION_VERSION=0.8
DBUS_VERSION=0.60
LCMS_VERSION=1.17

MSMANIFEST_TOOL=

dnl Set various checks
dnl ========================================================
MISSING_X=
AC_PROG_AWK

dnl Initialize the Pthread test variables early so they can be
dnl  overridden by each platform.
dnl ========================================================
USE_PTHREADS=
_PTHREAD_LDFLAGS=""

dnl Do not allow a separate objdir build if a srcdir build exists.
dnl ==============================================================
_topsrcdir=`cd \`dirname $0\`; pwd`
_objdir=`pwd`
if test "$_topsrcdir" != "$_objdir"
then
  # Check for a couple representative files in the source tree
  _conflict_files=
  for file in $_topsrcdir/Makefile $_topsrcdir/config/autoconf.mk; do
    if test -f $file; then
      _conflict_files="$_conflict_files $file"
    fi
  done
  if test "$_conflict_files"; then
    echo "***"
    echo "*   Your source tree contains these files:"
    for file in $_conflict_files; do
      echo "*         $file"
    done
    cat 1>&2 <<-EOF
	*   This indicates that you previously built in the source tree.
	*   A source tree build can confuse the separate objdir build.
	*
	*   To clean up the source tree:
	*     1. cd $_topsrcdir
	*     2. gmake distclean
	***
	EOF
    exit 1
    break
  fi
fi
MOZ_BUILD_ROOT=`pwd`

dnl Default to MSVC for win32
dnl ==============================================================
if test -z "$CROSS_COMPILE"; then
case "$target" in
*-cygwin*|*-mingw*|*-msvc*|*-mks*)
    MAKE_VERSION=3.79
    if test -z "$CC"; then CC=cl; fi
    if test -z "$CXX"; then CXX=cl; fi
    if test -z "$CPP"; then CPP=cl; fi
    if test -z "$LD"; then LD=link; fi
    if test -z "$AS"; then AS=ml; fi
    if test -z "$MIDL"; then MIDL=midl; fi
    ;;
esac
fi

COMPILE_ENVIRONMENT=1
MOZ_ARG_ENABLE_BOOL(compile-environment,
[  --disable-compile-environment
                           Disable compiler/library checks.],
    COMPILE_ENVIRONMENT=1,
    COMPILE_ENVIRONMENT= )

dnl ========================================================
dnl Checks for compilers.
dnl ========================================================
dnl Set CROSS_COMPILE in the environment when running configure
dnl to use the cross-compile setup for now
dnl ========================================================

if test "$COMPILE_ENVIRONMENT"; then

dnl Do some special WinCE toolchain stuff
case "$target" in
*wince)
    echo -----------------------------------------------------------------------------
    echo Building Windows CE Shunt Library and Tool Chain
    echo -----------------------------------------------------------------------------

    echo -n "#define TOPSRCDIR \"" > $srcdir/build/wince/tools/topsrcdir.h
    `$srcdir/build/cygwin-wrapper echo -n $_topsrcdir >> $srcdir/build/wince/tools/topsrcdir.h`
    echo -n \" >> $srcdir/build/wince/tools/topsrcdir.h

    make -C  $srcdir/build/wince/tools
    echo -----------------------------------------------------------------------------
    ;;
esac

if test -n "$CROSS_COMPILE" && test "$target" != "$host"; then
    echo "cross compiling from $host to $target"
    cross_compiling=yes

    _SAVE_CC="$CC"
    _SAVE_CFLAGS="$CFLAGS"
    _SAVE_LDFLAGS="$LDFLAGS"

    AC_MSG_CHECKING([for host c compiler])
    AC_CHECK_PROGS(HOST_CC, $HOST_CC gcc cc /usr/ucb/cc cl icc, "")
    if test -z "$HOST_CC"; then
        AC_MSG_ERROR([no acceptable c compiler found in \$PATH])
    fi
    AC_MSG_RESULT([$HOST_CC])
    AC_MSG_CHECKING([for host c++ compiler])
    AC_CHECK_PROGS(HOST_CXX, $HOST_CXX $CCC c++ g++ gcc CC cxx cc++ cl icc, "")
    if test -z "$HOST_CXX"; then
        AC_MSG_ERROR([no acceptable c++ compiler found in \$PATH])
    fi
    AC_MSG_RESULT([$HOST_CXX])

    if test -z "$HOST_CFLAGS"; then
        HOST_CFLAGS="$CFLAGS"
    fi
    if test -z "$HOST_CXXFLAGS"; then
        HOST_CXXFLAGS="$CXXFLAGS"
    fi
    if test -z "$HOST_LDFLAGS"; then
        HOST_LDFLAGS="$LDFLAGS"
    fi
    AC_CHECK_PROGS(HOST_RANLIB, $HOST_RANLIB ranlib, ranlib, :)
    AC_CHECK_PROGS(HOST_AR, $HOST_AR ar, ar, :)
    CC="$HOST_CC"
    CFLAGS="$HOST_CFLAGS"
    LDFLAGS="$HOST_LDFLAGS"

    AC_MSG_CHECKING([whether the host c compiler ($HOST_CC $HOST_CFLAGS $HOST_LDFLAGS) works])
    AC_TRY_COMPILE([], [return(0);], 
	[ac_cv_prog_hostcc_works=1 AC_MSG_RESULT([yes])],
	AC_MSG_ERROR([installation or configuration problem: host compiler $HOST_CC cannot create executables.]) )

    CC="$HOST_CXX"
    CFLAGS="$HOST_CXXFLAGS"

    AC_MSG_CHECKING([whether the host c++ compiler ($HOST_CXX $HOST_CXXFLAGS $HOST_LDFLAGS) works])
    AC_TRY_COMPILE([], [return(0);], 
	[ac_cv_prog_hostcxx_works=1 AC_MSG_RESULT([yes])],
	AC_MSG_ERROR([installation or configuration problem: host compiler $HOST_CXX cannot create executables.]) )
    
    CC=$_SAVE_CC
    CFLAGS=$_SAVE_CFLAGS
    LDFLAGS=$_SAVE_LDFLAGS

    case "$build:$target" in
      powerpc-apple-darwin8*:i?86-apple-darwin*)
        dnl The Darwin cross compiler doesn't necessarily point itself at a
        dnl root that has libraries for the proper architecture, it defaults
        dnl to the system root.  The libraries in the system root on current
        dnl versions of PPC OS X 10.4 aren't fat, so these target compiler
        dnl checks will fail.  Fake a working SDK in that case.
        _SAVE_CFLAGS=$CFLAGS
        _SAVE_CXXFLAGS=$CXXLAGS
        CFLAGS="-isysroot /Developer/SDKs/MacOSX10.4u.sdk $CFLAGS"
        CXXFLAGS="-isysroot /Developer/SDKs/MacOSX10.4u.sdk $CXXFLAGS"
        ;;
    esac

    AC_CHECK_PROGS(CC, $CC "${target_alias}-gcc" "${target}-gcc", :)
    unset ac_cv_prog_CC
    AC_PROG_CC
    AC_CHECK_PROGS(CXX, $CXX "${target_alias}-g++" "${target}-g++", :)
    unset ac_cv_prog_CXX
    AC_PROG_CXX

    case "$build:$target" in
      powerpc-apple-darwin8*:i?86-apple-darwin*)
        dnl Revert the changes made above.  From this point on, the target
        dnl compiler will never be used without applying the SDK to CFLAGS
        dnl (see --with-macos-sdk below).
        CFLAGS=$_SAVE_CFLAGS
        CXXFLAGS=$_SAVE_CXXFLAGS
        ;;
    esac

    AC_CHECK_PROGS(RANLIB, $RANLIB "${target_alias}-ranlib" "${target}-ranlib", :)
    AC_CHECK_PROGS(AR, $AR "${target_alias}-ar" "${target}-ar", :)
    AC_PATH_PROGS(AS, $AS "${target_alias}-as" "${target}-as", :)
    AC_CHECK_PROGS(LD, $LD "${target_alias}-ld" "${target}-ld", :)
    AC_CHECK_PROGS(STRIP, $STRIP "${target_alias}-strip" "${target}-strip", :)
    AC_CHECK_PROGS(WINDRES, $WINDRES "${target_alias}-windres" "${target}-windres", :)
    AC_DEFINE(CROSS_COMPILE)
else
    AC_PROG_CC
    AC_PROG_CXX
    AC_PROG_RANLIB
    AC_PATH_PROGS(AS, $AS as, $CC)
    AC_CHECK_PROGS(AR, ar, :)
    AC_CHECK_PROGS(LD, ld, :)
    AC_CHECK_PROGS(STRIP, strip, :)
    AC_CHECK_PROGS(WINDRES, windres, :)
    if test -z "$HOST_CC"; then
        HOST_CC="$CC"
    fi
    if test -z "$HOST_CFLAGS"; then
        HOST_CFLAGS="$CFLAGS"
    fi
    if test -z "$HOST_CXX"; then
        HOST_CXX="$CXX"
    fi
    if test -z "$HOST_CXXFLAGS"; then
        HOST_CXXFLAGS="$CXXFLAGS"
    fi
    if test -z "$HOST_LDFLAGS"; then
        HOST_LDFLAGS="$LDFLAGS"
    fi
    if test -z "$HOST_RANLIB"; then
        HOST_RANLIB="$RANLIB"
    fi
    if test -z "$HOST_AR"; then
       HOST_AR="$AR"
    fi
fi

GNU_AS=
GNU_LD=
GNU_CC=
GNU_CXX=
CC_VERSION='N/A'
CXX_VERSION='N/A'
if test "$GCC" = "yes"; then
    GNU_CC=1
    CC_VERSION=`$CC -v 2>&1 | grep 'gcc version'`
fi
if test "$GXX" = "yes"; then
    GNU_CXX=1
    CXX_VERSION=`$CXX -v 2>&1 | grep 'gcc version'`
fi
if test "`echo | $AS -v 2>&1 | grep -c GNU`" != "0"; then
    GNU_AS=1
fi
if test "`echo | $LD -v 2>&1 | grep -c GNU`" != "0"; then
    GNU_LD=1
fi
if test "$GNU_CC"; then
    if `$CC -print-prog-name=ld` -v 2>&1 | grep -c GNU >/dev/null; then
        GCC_USE_GNU_LD=1
    fi
fi

dnl Special win32 checks
dnl ========================================================
case "$target" in
*-wince)
    WINVER=400
    ;;
*)
    if test -n "$GNU_CC"; then  
        WINVER=501
    else    
        WINVER=500
    fi
    ;;
esac

MOZ_ARG_WITH_STRING(windows-version,
[  --with-windows-version=WINVER
                          Minimum Windows version (WINVER) to support
                              400: Windows 95
                              500: Windows 2000
                              501: Windows XP],
  WINVER=$withval)

case "$WINVER" in
400|500|501)
    ;;

*)
    AC_MSG_ERROR([Invalid value --with-windows-version, must be 400, 500 or 501]);
    ;;

esac

case "$target" in
*-cygwin*|*-mingw*|*-msvc*|*-mks*|*-wince)
    if test "$GCC" != "yes"; then
        # Check to see if we are really running in a msvc environemnt
        _WIN32_MSVC=1
        AC_CHECK_PROGS(MIDL, midl)

        # Make sure compilers are valid
        CFLAGS="$CFLAGS -TC -nologo"
        CXXFLAGS="$CXXFLAGS -TP -nologo"
        AC_LANG_SAVE
        AC_LANG_C
        AC_TRY_COMPILE([#include <stdio.h>],
            [ printf("Hello World\n"); ],,
            AC_MSG_ERROR([\$(CC) test failed.  You must have MS VC++ in your path to build.]) )

        AC_LANG_CPLUSPLUS
        AC_TRY_COMPILE([#include <new.h>],
            [ unsigned *test = new unsigned(42); ],,
            AC_MSG_ERROR([\$(CXX) test failed.  You must have MS VC++ in your path to build.]) )
        AC_LANG_RESTORE
        
        changequote(,)
        _MSVC_VER_FILTER='s|.* \([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*|\1|p'
        changequote([,])
        
        # Determine compiler version
        CC_VERSION=`"${CC}" -v 2>&1 | sed -ne "$_MSVC_VER_FILTER"`
        _CC_MAJOR_VERSION=`echo ${CC_VERSION} | $AWK -F\. '{ print $1 }'`
        _CC_MINOR_VERSION=`echo ${CC_VERSION} | $AWK -F\. '{ print $2 }'`
        _MSC_VER=${_CC_MAJOR_VERSION}${_CC_MINOR_VERSION}

        CXX_VERSION=`"${CXX}" -v 2>&1 | sed -ne "$_MSVC_VER_FILTER"`
        _CXX_MAJOR_VERSION=`echo ${CXX_VERSION} | $AWK -F\. '{ print $1 }'`

        if test "$_CC_MAJOR_VERSION" != "$_CXX_MAJOR_VERSION"; then
            AC_MSG_ERROR([The major versions of \$CC and \$CXX do not match.])
        fi
        if test "$_CC_MAJOR_VERSION" = "12"; then
            _CC_SUITE=6
        elif test "$_CC_MAJOR_VERSION" = "13"; then
            _CC_SUITE=7
        elif test "$_CC_MAJOR_VERSION" = "14"; then
            _CC_SUITE=8
            CXXFLAGS="$CXXFLAGS -Zc:wchar_t-"
            AC_DEFINE(_CRT_SECURE_NO_DEPRECATE)
            AC_DEFINE(_CRT_NONSTDC_NO_DEPRECATE)
        elif test "$_CC_MAJOR_VERSION" = "15"; then
            _CC_SUITE=9
            CXXFLAGS="$CXXFLAGS -Zc:wchar_t-"
            AC_DEFINE(_CRT_SECURE_NO_WARNINGS)
            AC_DEFINE(_CRT_NONSTDC_NO_WARNINGS)
        else
            AC_MSG_ERROR([This version of the MSVC compiler, $CC_VERSION , is unsupported.])
        fi

        _MOZ_RTTI_FLAGS_ON='-GR'
        _MOZ_RTTI_FLAGS_OFF='-GR-'
        _MOZ_EXCEPTIONS_FLAGS_ON='-EHsc'
        _MOZ_EXCEPTIONS_FLAGS_OFF=''

        if test -n "$WIN32_REDIST_DIR"; then
            WIN32_REDIST_DIR=`cd "$WIN32_REDIST_DIR" && pwd`
        fi
	
        # bug #249782
        # ensure that mt.exe is Microsoft (R) Manifest Tool and not magnetic tape manipulation utility (or something else)
        if test "$_CC_SUITE" -ge "8"; then
                changequote(,)
                _MSMT_VER_FILTER='s|.* \([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*|\1|p'
                changequote([,])

                MSMT_TOOL=`mt 2>&1|grep 'Microsoft (R) Manifest Tool'`
                if test -n "$MSMT_TOOL"; then
                        MSMANIFEST_TOOL_VERSION=`echo ${MSMT_TOOL}|sed -ne "$_MSMT_VER_FILTER"`
                        if test -z "$MSMANIFEST_TOOL_VERSION"; then
                                AC_MSG_WARN([Unknown version of the Microsoft (R) Manifest Tool.])
                        fi
                        MSMANIFEST_TOOL=1
                        unset MSMT_TOOL
                else
                        AC_MSG_ERROR([Microsoft (R) Manifest Tool must be in your \$PATH.])
                fi
        fi

        # Check linker version
        _LD_FULL_VERSION=`"${LD}" -v 2>&1 | sed -ne "$_MSVC_VER_FILTER"`
        _LD_MAJOR_VERSION=`echo ${_LD_FULL_VERSION} | $AWK -F\. '{ print $1 }'`
        if test "$_LD_MAJOR_VERSION" != "$_CC_SUITE"; then
            AC_MSG_ERROR([The linker major version, $_LD_FULL_VERSION,  does not match the compiler suite version, $_CC_SUITE.])
        fi
        INCREMENTAL_LINKER=1

        # Check midl version
        _MIDL_FULL_VERSION=`"${MIDL}" -v 2>&1 | sed -ne "$_MSVC_VER_FILTER"`
        _MIDL_MAJOR_VERSION=`echo ${_MIDL_FULL_VERSION} | $AWK -F\. '{ print $1 }'`
        _MIDL_MINOR_VERSION=`echo ${_MIDL_FULL_VERSION} | $AWK -F\. '{ print $2 }'`
        _MIDL_REV_VERSION=`echo ${_MIDL_FULL_VERSION} | $AWK -F\. '{ print $3 }'`
         # Add flags if necessary
         AC_MSG_CHECKING([for midl flags])
         if test \( "$_MIDL_MAJOR_VERSION" -gt "6" \) -o \( "$_MIDL_MAJOR_VERSION" = "6" -a "$_MIDL_MINOR_VERSION" -gt "0" \) -o \( "$_MIDL_MAJOR_VERSION" = "6" -a "$_MIDL_MINOR_VERSION" = "00" -a "$_MIDL_REV_VERSION" -gt "359" \); then
             # Starting with MIDL version 6.0.359, the MIDL compiler
             # generates /Oicf /robust stubs by default, which is not
             # compatible with versions of Windows older than Win2k.
             # This switches us back to the old behaviour. When we drop
             # support for Windows older than Win2k, we should remove
             # this.
             MIDL_FLAGS="${MIDL_FLAGS} -no_robust"
             AC_MSG_RESULT([need -no_robust])
         else
             MIDL_FLAGS="${MIDL_FLAGS}"
             AC_MSG_RESULT([none needed])
        fi
        
        unset _MSVC_VER_FILTER
        
    else
        # Check w32api version
        _W32API_MAJOR_VERSION=`echo $W32API_VERSION | $AWK -F\. '{ print $1 }'`
        _W32API_MINOR_VERSION=`echo $W32API_VERSION | $AWK -F\. '{ print $2 }'`
        AC_MSG_CHECKING([for w32api version >= $W32API_VERSION])
        AC_TRY_COMPILE([#include <w32api.h>],
            #if (__W32API_MAJOR_VERSION < $_W32API_MAJOR_VERSION) || \
                (__W32API_MAJOR_VERSION == $_W32API_MAJOR_VERSION && \
                 __W32API_MINOR_VERSION < $_W32API_MINOR_VERSION)
                #error "test failed."
            #endif
            , [ res=yes ], [ res=no ])
        AC_MSG_RESULT([$res])
        if test "$res" != "yes"; then
            AC_MSG_ERROR([w32api version $W32API_VERSION or higher required.])
        fi
        # Check windres version
        AC_MSG_CHECKING([for windres version >= $WINDRES_VERSION])
        _WINDRES_VERSION=`${WINDRES} --version 2>&1 | grep -i windres 2>/dev/null | $AWK '{ print $3 }'`
        AC_MSG_RESULT([$_WINDRES_VERSION])
        _WINDRES_MAJOR_VERSION=`echo $_WINDRES_VERSION | $AWK -F\. '{ print $1 }'`
        _WINDRES_MINOR_VERSION=`echo $_WINDRES_VERSION | $AWK -F\. '{ print $2 }'`
        _WINDRES_RELEASE_VERSION=`echo $_WINDRES_VERSION | $AWK -F\. '{ print $3 }'`
        WINDRES_MAJOR_VERSION=`echo $WINDRES_VERSION | $AWK -F\. '{ print $1 }'`
        WINDRES_MINOR_VERSION=`echo $WINDRES_VERSION | $AWK -F\. '{ print $2 }'`
        WINDRES_RELEASE_VERSION=`echo $WINDRES_VERSION | $AWK -F\. '{ print $3 }'`
        if test "$_WINDRES_MAJOR_VERSION" -lt "$WINDRES_MAJOR_VERSION" -o \
                "$_WINDRES_MAJOR_VERSION" -eq "$WINDRES_MAJOR_VERSION" -a \
                "$_WINDRES_MINOR_VERSION" -lt "$WINDRES_MINOR_VERSION" -o \
                "$_WINDRES_MAJOR_VERSION" -eq "$WINDRES_MAJOR_VERSION" -a \
                "$_WINDRES_MINOR_VERSION" -eq "$WINDRES_MINOR_VERSION" -a \
                "$_WINDRES_RELEASE_VERSION" -lt "$WINDRES_RELEASE_VERSION"
        then
            AC_MSG_ERROR([windres version $WINDRES_VERSION or higher is required to build.])
        fi
    fi # !GNU_CC

    AC_DEFINE_UNQUOTED(WINVER,0x$WINVER)
    AC_DEFINE_UNQUOTED(_WIN32_WINNT,0x$WINVER)
    # Require OS features provided by IE 5.0
    AC_DEFINE_UNQUOTED(_WIN32_IE,0x0500)
    ;;
esac

if test -n "$_WIN32_MSVC"; then
    SKIP_PATH_CHECKS=1
    SKIP_COMPILER_CHECKS=1
    SKIP_LIBRARY_CHECKS=1
    AC_CHECK_HEADERS(mmintrin.h)
fi

dnl Test breaks icc on OS/2 && MSVC
if test "$CC" != "icc" -a -z "$_WIN32_MSVC"; then
    AC_PROG_CC_C_O
    if grep "NO_MINUS_C_MINUS_O 1" ./confdefs.h >/dev/null; then
        USING_HCC=1
        _OLDCC=$CC
        _OLDCXX=$CXX
        CC="${srcdir}/build/hcc '$CC'"
        CXX="${srcdir}/build/hcpp '$CXX'"
    fi
fi

AC_PROG_CPP
AC_PROG_CXXCPP

fi # COMPILE_ENVIRONMENT

AC_SUBST(MIDL_FLAGS)
AC_SUBST(_MSC_VER)

AC_SUBST(GNU_AS)
AC_SUBST(GNU_LD)
AC_SUBST(GNU_CC)
AC_SUBST(GNU_CXX)

dnl ========================================================
dnl Checks for programs.
dnl ========================================================
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PATH_PROGS(PERL, $PERL perl5 perl )
if test -z "$PERL" || test "$PERL" = ":"; then
    AC_MSG_ERROR([perl not found in \$PATH])
fi

if test -z "$TINDERBOX_SKIP_PERL_VERSION_CHECK"; then
AC_MSG_CHECKING([for minimum required perl version >= $PERL_VERSION])
_perl_version=`PERL_VERSION=$PERL_VERSION $PERL -e 'print "$]"; if ($] >= $ENV{PERL_VERSION}) { exit(0); } else { exit(1); }' 2>&5`
_perl_res=$?
AC_MSG_RESULT([$_perl_version])

if test "$_perl_res" != 0; then
    AC_MSG_ERROR([Perl $PERL_VERSION or higher is required.])
fi
fi

AC_MSG_CHECKING([for full perl installation])
_perl_archlib=`$PERL -e 'use Config; if ( -d $Config{archlib} ) { exit(0); } else { exit(1); }' 2>&5`
_perl_res=$?
if test "$_perl_res" != 0; then
    AC_MSG_RESULT([no])
    AC_MSG_ERROR([Cannot find Config.pm or \$Config{archlib}.  A full perl installation is required.])
else
    AC_MSG_RESULT([yes])    
fi

AC_PATH_PROGS(PYTHON, $PYTHON python)
if test -z "$PYTHON"; then
    AC_MSG_ERROR([python was not found in \$PATH])
fi
echo PYTHON="$PYTHON"

AC_PATH_PROGS(NSINSTALL_BIN, nsinstall )
if test -z "$COMPILE_ENVIRONMENT"; then
if test -z "$NSINSTALL_BIN" || test "$NSINSTALL_BIN" = ":"; then
    NSINSTALL_BIN='$(PYTHON) $(topsrcdir)/config/nsinstall.py'
fi
fi
AC_SUBST(NSINSTALL_BIN)

AC_PATH_PROG(DOXYGEN, doxygen, :)
AC_PATH_PROG(WHOAMI, whoami, :)
AC_PATH_PROG(AUTOCONF, autoconf, :)
AC_PATH_PROG(UNZIP, unzip, :)
AC_PATH_PROGS(ZIP, zip)
if test -z "$ZIP" || test "$ZIP" = ":"; then
    AC_MSG_ERROR([zip not found in \$PATH])
fi
AC_PATH_PROG(SYSTEM_MAKEDEPEND, makedepend)
AC_PATH_PROG(XARGS, xargs)
if test -z "$XARGS" || test "$XARGS" = ":"; then
    AC_MSG_ERROR([xargs not found in \$PATH .])
fi

if test "$COMPILE_ENVIRONMENT"; then

dnl ========================================================
dnl = Mac OS X toolchain support
dnl ========================================================

case "$target_os" in
darwin*)
    dnl Current known valid versions for GCC_VERSION are 2.95.2 3.1 3.3 4.0.
    dnl 4.0 identifies itself as 4.0.x, so strip the decidecimal for
    dnl the environment and includedir purposes (when using an SDK, below),
    dnl but remember the full version number for the libdir (SDK).
    changequote(,)
    GCC_VERSION_FULL=`echo $CXX_VERSION | $PERL -pe 's/^.*gcc version ([^ ]*).*/$1/'`
    GCC_VERSION=`echo $GCC_VERSION_FULL | $PERL -pe '(split(/\./))[0]>=4&&s/(^\d*\.\d*).*/$1/;'`
    changequote([,])
    if test "$GCC_VERSION_FULL" = "4.0.0" ; then
        dnl Bug 280479, but this keeps popping up in bug 292530 too because
        dnl 4.0.0/4061 is the default compiler in Tiger.
        changequote(,)
        GCC_BUILD=`echo $CXX_VERSION | $PERL -pe 's/^.*build ([^ )]*).*/$1/'`
        changequote([,])
        if test "$GCC_BUILD" = "4061" ; then
            AC_MSG_ERROR([You are attempting to use Apple gcc 4.0 build 4061.
This compiler was supplied with Xcode 2.0, and contains bugs that prevent it
from building Mozilla. Upgrade to Xcode 2.1 or later.])
        fi
    fi

    dnl xcodebuild needs GCC_VERSION defined in the environment, since it
    dnl doesn't respect the CC/CXX setting.  With GCC_VERSION set, it will use
    dnl /usr/bin/g(cc|++)-$GCC_VERSION.
    AC_PATH_PROGS(PBBUILD, pbbuild xcodebuild pbxbuild)

    case "$PBBUILD" in
      *xcodebuild*)
        changequote(,)
        XCODEBUILD_VERSION=`$PBBUILD -version 2>/dev/null | sed -e 's/.*DevToolsCore-\([0-9]*\).*/\1/'`
        changequote([,])
        if test -n "$XCODEBUILD_VERSION" && test "$XCODEBUILD_VERSION" -ge 620 ; then
          HAS_XCODE_2_1=1;
        fi
      ;;
    esac

    dnl sdp was formerly in /Developer/Tools.  As of Mac OS X 10.4 (Darwin 8),
    dnl it has moved into /usr/bin.
    AC_PATH_PROG(SDP, sdp, :, [$PATH:/usr/bin:/Developer/Tools])
    ;;
esac

AC_SUBST(GCC_VERSION)
AC_SUBST(XCODEBUILD_VERSION)
AC_SUBST(HAS_XCODE_2_1)

dnl The universal machinery sets UNIVERSAL_BINARY to inform packager.mk
dnl that a universal binary is being produced.
AC_SUBST(UNIVERSAL_BINARY)

dnl ========================================================
dnl = Mac OS X SDK support
dnl ========================================================
MACOS_SDK_DIR=
NEXT_ROOT=
MOZ_ARG_WITH_STRING(macos-sdk,
[  --with-macos-sdk=dir   Location of platform SDK to use (Mac OS X only)],
    MACOS_SDK_DIR=$withval)

dnl MACOS_SDK_DIR will be set to the SDK location whenever one is in use.
dnl NEXT_ROOT will be set and exported only if it's needed.
AC_SUBST(MACOS_SDK_DIR)
AC_SUBST(NEXT_ROOT)

if test "$MACOS_SDK_DIR"; then
  dnl Sync this section with the ones in NSPR and NSS.
  dnl Changes to the cross environment here need to be accounted for in
  dnl the libIDL checks (below) and xpidl build.

  if test ! -d "$MACOS_SDK_DIR"; then
    AC_MSG_ERROR([SDK not found.  When using --with-macos-sdk, you must
specify a valid SDK.  SDKs are installed when the optional cross-development
tools are selected during the Xcode/Developer Tools installation.])
  fi

  GCC_VERSION_MAJOR=`echo $GCC_VERSION_FULL | $PERL -pe 's/(^\d*).*/$1/;'`
  if test "$GCC_VERSION_MAJOR" -lt "4" ; then
    SDK_C_INCLUDE="-isystem ${MACOS_SDK_DIR}/usr/include/gcc/darwin/${GCC_VERSION} -isystem ${MACOS_SDK_DIR}/usr/include -F${MACOS_SDK_DIR}/System/Library/Frameworks"
    if test -d "${MACOS_SDK_DIR}/Library/Frameworks" ; then
      SDK_C_INCLUDE="$SDK_C_INCLUDE -F${MACOS_SDK_DIR}/Library/Frameworks"
    fi
    SDK_CXX_INCLUDE="-I${MACOS_SDK_DIR}/usr/include/gcc/darwin/${GCC_VERSION}/c++ -I${MACOS_SDK_DIR}/usr/include/gcc/darwin/${GCC_VERSION}/c++/ppc-darwin -I${MACOS_SDK_DIR}/usr/include/gcc/darwin/${GCC_VERSION}/c++/backward"

    CFLAGS="$CFLAGS -nostdinc ${SDK_C_INCLUDE}"
    CXXFLAGS="$CXXFLAGS -nostdinc -nostdinc++ ${SDK_CXX_INCLUDE} ${SDK_C_INCLUDE}"

    dnl CPP/CXXCPP needs to be set for AC_CHECK_HEADER.
    CPP="$CPP -nostdinc ${SDK_C_INCLUDE}"
    CXXCPP="$CXXCPP -nostdinc -nostdinc++ ${SDK_CXX_INCLUDE} ${SDK_C_INCLUDE}"

    dnl ld support for -syslibroot is compiler-agnostic, but only available
    dnl on Tiger.  Although it's possible to switch on the build host's
    dnl OS release to use ld -syslibroot when available, ld -syslibroot will
    dnl cause warnings as long as NEXT_ROOT is set.  NEXT_ROOT should be
    dnl set because both the compiler and linker use it.
    LIBS="-L${MACOS_SDK_DIR}/usr/lib/gcc/darwin -L${MACOS_SDK_DIR}/usr/lib/gcc/darwin/${GCC_VERSION_FULL} -L${MACOS_SDK_DIR}/usr/lib $LIBS"
    export NEXT_ROOT=$MACOS_SDK_DIR

    if test -n "$CROSS_COMPILE" ; then
      dnl NEXT_ROOT will be in the environment, but it shouldn't be set for
      dnl the build host.  HOST_CXX is presently unused.
      HOST_CC="NEXT_ROOT= $HOST_CC"
      HOST_CXX="NEXT_ROOT= $HOST_CXX"
    fi
  else
    dnl gcc >= 4.0 uses different paths than above, but knows how to find
    dnl them itself.
    CFLAGS="$CFLAGS -isysroot ${MACOS_SDK_DIR}"
    CXXFLAGS="$CXXFLAGS -isysroot ${MACOS_SDK_DIR}"

    dnl CPP/CXXCPP needs to be set for AC_CHECK_HEADER.
    CPP="$CPP -isysroot ${MACOS_SDK_DIR}"
    CXXCPP="$CXXCPP -isysroot ${MACOS_SDK_DIR}"

    if test "$GCC_VERSION_FULL" = "4.0.0" ; then
      dnl If gcc >= 4.0, we're guaranteed to be on Tiger, which has an ld
      dnl that supports -syslibroot.  Don't set NEXT_ROOT because it will
      dnl be ignored and cause warnings when -syslibroot is specified.
      dnl gcc 4.0.1 will pass -syslibroot to ld automatically based on
      dnl the -isysroot it receives, so this is only needed with 4.0.0.
      LDFLAGS="$LDFLAGS -Wl,-syslibroot,${MACOS_SDK_DIR}"
    fi
  fi

  AC_LANG_SAVE
  AC_MSG_CHECKING([for valid compiler/Mac OS X SDK combination])
  AC_LANG_CPLUSPLUS
  AC_TRY_COMPILE([#include <new>
                 int main() { return 0; }],
   result=yes,
   result=no)
  AC_LANG_RESTORE
  AC_MSG_RESULT($result)

  if test "$result" = "no" ; then
    AC_MSG_ERROR([The selected compiler and Mac OS X SDK are incompatible.])
  fi
fi

fi # COMPILE_ENVIRONMENT

dnl Be sure the make we use is GNU make.
dnl on win32, gmake.exe is the generally the wrong version
case "$host_os" in
cygwin*|mingw*|mks*|msvc*)
    AC_PATH_PROGS(MAKE, $MAKE make gmake, :)
    ;;
*)
    AC_PATH_PROGS(MAKE, $MAKE gmake make, :)
    ;;
esac
_make_try=`$MAKE --version 2>/dev/null | grep GNU`
if test ! "$_make_try"
then
	echo
	echo "*** $MAKE is not GNU Make.  You will not be able to build Mozilla without GNU Make."
	echo
	exit 1
fi
dnl Now exit if version if < MAKE_VERSION
rm -f dummy.mk
echo 'all: ; @echo $(MAKE_VERSION)' > dummy.mk
_make_vers=`$MAKE --no-print-directory -f dummy.mk all 2>/dev/null`
rm -f dummy.mk
_MAKE_MAJOR_VERSION=`echo $_make_vers | $AWK -F\. '{ print $1 }'`
_MAKE_MINOR_VERSION=`echo $_make_vers | $AWK -F\. '{ print $2 }'`
MAKE_MAJOR_VERSION=`echo $MAKE_VERSION | $AWK -F\. '{ print $1 }'`
MAKE_MINOR_VERSION=`echo $MAKE_VERSION | $AWK -F\. '{ print $2 }'`
if test "$_MAKE_MAJOR_VERSION" -lt "$MAKE_MAJOR_VERSION" || \
   test "$_MAKE_MAJOR_VERSION" = "$MAKE_MAJOR_VERSION" -a \
        "$_MAKE_MINOR_VERSION" -lt "$MAKE_MINOR_VERSION"; then
   AC_MSG_ERROR([GNU Make $MAKE_VERSION or higher is required to build Mozilla.])
fi
AC_SUBST(MAKE)

if test "$COMPILE_ENVIRONMENT"; then

AC_PATH_XTRA

dnl Check in X11 include directory too.
if test "$no_x" != "yes"; then
    CPPFLAGS="$CPPFLAGS $X_CFLAGS"
fi

XCFLAGS="$X_CFLAGS"

fi # COMPILE_ENVIRONMENT

dnl ========================================================
dnl set the defaults first
dnl ========================================================
AS_BIN=$AS
AR_FLAGS='cr $@'
AR_LIST='$(AR) t'
AR_EXTRACT='$(AR) x'
AR_DELETE='$(AR) d'
AS='$(CC)'
AS_DASH_C_FLAG='-c'
DLL_PREFIX=lib
LIB_PREFIX=lib
DLL_SUFFIX=.so
OBJ_SUFFIX=o
LIB_SUFFIX=a
ASM_SUFFIX=s
IMPORT_LIB_SUFFIX=
TARGET_MD_ARCH=unix
DIRENT_INO=d_ino
CYGWIN_WRAPPER=
WIN_TOP_SRC=
MOZ_USER_DIR=".mozilla"
HOST_AR='$(AR)'
HOST_AR_FLAGS='$(AR_FLAGS)'

MOZ_JPEG_CFLAGS=
MOZ_JPEG_LIBS='$(call EXPAND_LIBNAME_PATH,mozjpeg,$(DEPTH)/jpeg)'
MOZ_ZLIB_CFLAGS=
MOZ_ZLIB_LIBS='$(call EXPAND_LIBNAME_PATH,mozz,$(DEPTH)/modules/zlib/src)'
MOZ_PNG_CFLAGS=
MOZ_PNG_LIBS='$(call EXPAND_LIBNAME_PATH,mozpng,$(DEPTH)/modules/libimg/png)'

MOZ_JS_LIBS='-L$(LIBXUL_DIST)/bin -lmozjs'
DYNAMIC_XPCOM_LIBS='-L$(LIBXUL_DIST)/bin -lxpcom -lxpcom_core'
MOZ_FIX_LINK_PATHS='-Wl,-rpath-link,$(LIBXUL_DIST)/bin'
XPCOM_FROZEN_LDOPTS='-L$(LIBXUL_DIST)/bin -lxpcom'
LIBXUL_LIBS='$(XPCOM_FROZEN_LDOPTS) -lxul'
XPCOM_GLUE_LDOPTS='$(LIBXUL_DIST)/lib/$(LIB_PREFIX)xpcomglue_s.$(LIB_SUFFIX) $(XPCOM_FROZEN_LDOPTS)'
XPCOM_STANDALONE_GLUE_LDOPTS='$(LIBXUL_DIST)/lib/$(LIB_PREFIX)xpcomglue.$(LIB_SUFFIX)'

MOZ_COMPONENT_NSPR_LIBS='-L$(LIBXUL_DIST)/bin $(NSPR_LIBS)'
MOZ_XPCOM_OBSOLETE_LIBS='-L$(LIBXUL_DIST)/lib -lxpcom_compat'

USE_DEPENDENT_LIBS=1

_PLATFORM_DEFAULT_TOOLKIT=cairo-gtk2
MOZ_GFX_TOOLKIT='$(MOZ_WIDGET_TOOLKIT)'

MOZ_ENABLE_POSTSCRIPT=1 

if test -n "$CROSS_COMPILE"; then
    OS_TARGET="${target_os}"
    OS_ARCH=`echo $target_os | sed -e 's|/|_|g'`
    OS_RELEASE=
    case "${target_os}" in
        linux*)       OS_ARCH=Linux OS_TARGET=Linux ;;
        solaris*)     OS_ARCH=SunOS OS_RELEASE=5 ;;
        mingw*)       OS_ARCH=WINNT ;;
        wince*)       OS_ARCH=WINCE ;;
        darwin*)      OS_ARCH=Darwin OS_TARGET=Darwin ;;
    esac
else
    OS_TARGET=`uname -s`
    OS_ARCH=`uname -s | sed -e 's|/|_|g'`
    OS_RELEASE=`uname -r`
fi

# Before this used `uname -m` when not cross compiling
# but that breaks when you have a 64 bit kernel with a 32 bit userland.
OS_TEST="${target_cpu}"

_COMPILER_PREFIX=

HOST_OS_ARCH=`echo $host_os | sed -e 's|/|_|g'`

#######################################################################
# Master "Core Components" macros for getting the OS target           #
#######################################################################

#
# Note: OS_TARGET should be specified on the command line for gmake.
# When OS_TARGET=WIN95 is specified, then a Windows 95 target is built.
# The difference between the Win95 target and the WinNT target is that
# the WinNT target uses Windows NT specific features not available
# in Windows 95. The Win95 target will run on Windows NT, but (supposedly)
# at lesser performance (the Win95 target uses threads; the WinNT target
# uses fibers).
#
# When OS_TARGET=WIN16 is specified, then a Windows 3.11 (16bit) target
# is built. See: win16_3.11.mk for lots more about the Win16 target.
#
# If OS_TARGET is not specified, it defaults to $(OS_ARCH), i.e., no
# cross-compilation.
#

#
# The following hack allows one to build on a WIN95 machine (as if
# s/he were cross-compiling on a WINNT host for a WIN95 target).
# It also accomodates for MKS's uname.exe.  If you never intend
# to do development on a WIN95 machine, you don't need this hack.
#
case "$OS_ARCH" in
WIN95)
    OS_ARCH=WINNT
    OS_TARGET=WIN95
    ;;
Windows_95)
    OS_ARCH=Windows_NT
    OS_TARGET=WIN95
    ;;
Windows_98)
    OS_ARCH=Windows_NT
    OS_TARGET=WIN95
    ;;
CYGWIN_9*|CYGWIN_ME*)
    OS_ARCH='CYGWIN_NT-4.0'
    OS_TARGET=WIN95
    ;;
esac

#
# Define and override various archtecture-specific variables, including
# HOST_OS_ARCH
# OS_ARCH
# OS_TEST
# OS_TARGET
# OS_RELEASE
# OS_MINOR_RELEASE
#

case "$HOST_OS_ARCH" in
cygwin*|mingw*|mks*|msvc*)
    HOST_OS_ARCH=WINNT
    ;;
linux*)
    HOST_OS_ARCH=Linux
    ;;
solaris*)
    HOST_OS_ARCH=SunOS
    ;;
BSD_386)
    HOST_OS_ARCH=BSD
    ;;
dgux)
    HOST_OS_ARCH=DGUX
    ;;
IRIX64)
    HOST_OS_ARCH=IRIX
    ;;
UNIX_SV)
    if "`cat /etc/bcheckrc | grep -c NCR 2>/dev/null`" != "0"; then
        HOST_OS_ARCH=NCR
    else
        HOST_OS_ARCH=UNIXWARE
    fi
    ;;
ncr)
    HOST_OS_ARCH=NCR
    ;;
UNIX_SYSTEM_V)
    HOST_OS_ARCH=NEC
    ;;
OSF1)
    ;;
*OpenVMS*)
    HOST_OS_ARCH=OpenVMS
    ;;
OS_2)
    HOST_OS_ARCH=OS2
    ;;
QNX)
    ;;
SCO_SV)
    HOST_OS_ARCH=SCOOS
    ;;
SINIX-N | SINIX-Y | SINIX-Z |ReliantUNIX-M)
    HOST_OS_ARCH=SINIX
    ;;
UnixWare)
    HOST_OS_ARCH=UNIXWARE
    ;;
esac

case "$OS_ARCH" in
WINNT)
    OS_TEST=`uname -p`
    ;;
Windows_NT)
#
# If uname -s returns "Windows_NT", we assume that we are using
# the uname.exe in MKS toolkit.
#
# The -r option of MKS uname only returns the major version number.
# So we need to use its -v option to get the minor version number.
# Moreover, it doesn't have the -p option, so we need to use uname -m.
#
    OS_ARCH=WINNT
    OS_TARGET=WINNT
    OS_MINOR_RELEASE=`uname -v`
    if test "$OS_MINOR_RELEASE" = "00"; then
        OS_MINOR_RELEASE=0
    fi
    OS_RELEASE="${OS_RELEASE}.${OS_MINOR_RELEASE}"
    ;;
CYGWIN32_NT|CYGWIN_NT*|MINGW*_NT*)
#
# If uname -s returns "CYGWIN_NT-4.0", we assume that we are using
# the uname.exe in the Cygwin tools.
# Prior to the Beta 20 release, Cygwin was called GNU-Win32.
# If uname -s returns "CYGWIN32/NT", we assume that we are using
# the uname.exe in the GNU-Win32 tools.
# If uname -s returns MINGW32_NT-5.1, we assume that we are using
# the uname.exe in the MSYS tools.
#
    OS_RELEASE=`expr $OS_ARCH : '.*NT-\(.*\)'`
    OS_ARCH=WINNT
    OS_TARGET=WINNT
    ;;
AIX)
    OS_RELEASE=`uname -v`.`uname -r`
    OS_TEST=`uname -p`
    ;;
BSD_386)
    OS_ARCH=BSD
    ;;
dgux)
    OS_ARCH=DGUX
    ;;
IRIX64)
    OS_ARCH=IRIX
    ;;
UNIX_SV)
    if "`cat /etc/bcheckrc | grep -c NCR 2>/dev/null`" != "0"; then
        OS_ARCH=NCR
    else
        OS_ARCH=UNIXWARE
        OS_RELEASE=`uname -v`
    fi
    ;;
ncr)
    OS_ARCH=NCR
    ;;
UNIX_SYSTEM_V)
    OS_ARCH=NEC
    ;;
OSF1)
    case `uname -v` in
    148)
        OS_RELEASE=V3.2C
        ;;
    564)
        OS_RELEASE=V4.0B
        ;;
    878)
        OS_RELEASE=V4.0D
        ;;
    esac
    ;;
*OpenVMS*)
    OS_ARCH=OpenVMS
    OS_RELEASE=`uname -v`
    OS_TEST=`uname -p`
    ;;
OS_2)
    OS_ARCH=OS2
    OS_TARGET=OS2
    OS_RELEASE=`uname -v`
    ;;
QNX)
    if test "$OS_TARGET" != "NTO"; then
        changequote(,)
        OS_RELEASE=`uname -v | sed 's/^\([0-9]\)\([0-9]*\)$/\1.\2/'`
        changequote([,])
    fi
    OS_TEST=x86
    ;;
SCO_SV)
    OS_ARCH=SCOOS
    OS_RELEASE=5.0
    ;;
SINIX-N | SINIX-Y | SINIX-Z |ReliantUNIX-M)
    OS_ARCH=SINIX
    OS_TEST=`uname -p`
    ;;
UnixWare)
    OS_ARCH=UNIXWARE
    OS_RELEASE=`uname -v`
    ;;
WINCE)
    OS_ARCH=WINCE
    OS_TARGET=WINCE
    ;;
Darwin)
    case "${target_cpu}" in
    powerpc*)
        OS_TEST=ppc
        ;;
    i*86*)
        OS_TEST=i386 
        ;;
    *)
        if test -z "$CROSS_COMPILE" ; then
            OS_TEST=`uname -p`
        fi
        ;;
    esac
    ;;
esac

if test "$OS_ARCH" = "NCR"; then
    changequote(,)
    OS_RELEASE=`awk '{print $3}' /etc/.relid | sed 's/^\([0-9]\)\(.\)\(..\)\(.*\)$/\2.\3/'`
    changequote([,])
fi

# Only set CPU_ARCH if we recognize the value of OS_TEST

case "$OS_TEST" in
*86 | i86pc)
    CPU_ARCH=x86
    ;;

powerpc* | ppc)
    CPU_ARCH=ppc
    ;;

Alpha | alpha | ALPHA)
    CPU_ARCH=Alpha
    ;;

sun4u)
    CPU_ARCH=sparc
    ;;

x86_64 | sparc | ppc | ia64)
    CPU_ARCH="$OS_TEST"
    ;;
esac

if test -z "$OS_TARGET"; then
    OS_TARGET=$OS_ARCH
fi
if test "$OS_TARGET" = "WIN95"; then
    OS_RELEASE="4.0"
fi
if test "$OS_TARGET" = "WIN16"; then
    OS_RELEASE=
fi
OS_CONFIG="${OS_TARGET}${OS_RELEASE}"

dnl ========================================================
dnl GNU specific defaults
dnl ========================================================
if test "$GNU_CC"; then
    MKSHLIB='$(CXX) $(CXXFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -Wl,-h,$@ -o $@'
    MKCSHLIB='$(CC) $(CFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -Wl,-h,$@ -o $@'
    DSO_LDOPTS='-shared'
    if test "$GCC_USE_GNU_LD"; then
        # Don't allow undefined symbols in libraries
        DSO_LDOPTS="$DSO_LDOPTS -Wl,-z,defs"
    fi
    WARNINGS_AS_ERRORS='-Werror'
    DSO_CFLAGS=''
    DSO_PIC_CFLAGS='-fPIC'
    _MOZ_RTTI_FLAGS_ON=${_COMPILER_PREFIX}-frtti
    _MOZ_RTTI_FLAGS_OFF=${_COMPILER_PREFIX}-fno-rtti
    _MOZ_EXCEPTIONS_FLAGS_ON='-fhandle-exceptions'
    _MOZ_EXCEPTIONS_FLAGS_OFF='-fno-handle-exceptions'

    # Turn on GNU specific features
    # -Wall - turn on all warnings
    # -pedantic - make compiler warn about non-ANSI stuff, and
    #             be a little bit stricter
    # Warnings slamm took out for now (these were giving more noise than help):
    # -Wbad-function-cast - warns when casting a function to a new return type
    # -Wconversion - complained when char's or short's were used a function args
    # -Wshadow - removed because it generates more noise than help --pete
    _WARNINGS_CFLAGS="${_WARNINGS_CFLAGS} -Wall -W -Wno-unused -Wpointer-arith -Wcast-align"

    dnl Turn pedantic on but disable the warnings for long long
    _PEDANTIC=1
    _IGNORE_LONG_LONG_WARNINGS=1

    _DEFINES_CFLAGS='-include $(DEPTH)/mozilla-config.h -DMOZILLA_CLIENT'
    _USE_CPP_INCLUDE_FLAG=1
else
    MKSHLIB='$(LD) $(DSO_LDOPTS) -h $@ -o $@'
    MKCSHLIB='$(LD) $(DSO_LDOPTS) -h $@ -o $@'

    DSO_LDOPTS='-shared'
    if test "$GNU_LD"; then
        # Don't allow undefined symbols in libraries
        DSO_LDOPTS="$DSO_LDOPTS -z defs"
    fi

    DSO_CFLAGS=''
    DSO_PIC_CFLAGS='-KPIC'
    _DEFINES_CFLAGS='$(ACDEFINES) -D_MOZILLA_CONFIG_H_ -DMOZILLA_CLIENT'
fi

if test "$GNU_CXX"; then
    # Turn on GNU specific features
    _WARNINGS_CXXFLAGS="${_WARNINGS_CXXFLAGS} -Wall -Wconversion -Wpointer-arith -Wcast-align -Woverloaded-virtual -Wsynth -Wno-ctor-dtor-privacy -Wno-non-virtual-dtor"

    _DEFINES_CXXFLAGS='-DMOZILLA_CLIENT -include $(DEPTH)/mozilla-config.h'
    _USE_CPP_INCLUDE_FLAG=1
else
    _DEFINES_CXXFLAGS='-DMOZILLA_CLIENT -D_MOZILLA_CONFIG_H_ $(ACDEFINES)'
fi

dnl gcc can come with its own linker so it is better to use the pass-thru calls
dnl MKSHLIB_FORCE_ALL is used to force the linker to include all object
dnl files present in an archive. MKSHLIB_UNFORCE_ALL reverts the linker to
dnl normal behavior.
dnl ========================================================
MKSHLIB_FORCE_ALL=
MKSHLIB_UNFORCE_ALL=

if test "$COMPILE_ENVIRONMENT"; then
if test "$GNU_CC"; then
  AC_MSG_CHECKING(whether ld has archive extraction flags)
  AC_CACHE_VAL(ac_cv_mkshlib_force_and_unforce,
   [_SAVE_LDFLAGS=$LDFLAGS; _SAVE_LIBS=$LIBS
    ac_cv_mkshlib_force_and_unforce="no"
    exec 3<&0 <<LOOP_INPUT
	force="-Wl,--whole-archive";   unforce="-Wl,--no-whole-archive"
	force="-Wl,-z -Wl,allextract"; unforce="-Wl,-z -Wl,defaultextract"
	force="-Wl,-all";              unforce="-Wl,-none"
LOOP_INPUT
    while read line
    do
      eval $line
      LDFLAGS=$force
      LIBS=$unforce
      AC_TRY_LINK(,, ac_cv_mkshlib_force_and_unforce=$line; break)
    done
    exec 0<&3 3<&-
    LDFLAGS=$_SAVE_LDFLAGS; LIBS=$_SAVE_LIBS
   ])
  if test "$ac_cv_mkshlib_force_and_unforce" = "no"; then
    AC_MSG_RESULT(no)
  else
    AC_MSG_RESULT(yes)
    eval $ac_cv_mkshlib_force_and_unforce
    MKSHLIB_FORCE_ALL=$force
    MKSHLIB_UNFORCE_ALL=$unforce
  fi
fi # GNU_CC
fi # COMPILE_ENVIRONMENT

dnl =================================================================
dnl Set up and test static assertion macros used to avoid AC_TRY_RUN,
dnl which is bad when cross compiling.
dnl =================================================================
if test "$COMPILE_ENVIRONMENT"; then
configure_static_assert_macros='
#define CONFIGURE_STATIC_ASSERT(condition) CONFIGURE_STATIC_ASSERT_IMPL(condition, __LINE__)
#define CONFIGURE_STATIC_ASSERT_IMPL(condition, line) CONFIGURE_STATIC_ASSERT_IMPL2(condition, line)
#define CONFIGURE_STATIC_ASSERT_IMPL2(condition, line) typedef int static_assert_line_##line[(condition) ? 1 : -1]
'

dnl test that the macros actually work:
AC_MSG_CHECKING(that static assertion macros used in autoconf tests work)
AC_CACHE_VAL(ac_cv_static_assertion_macros_work,
 [AC_LANG_SAVE
  AC_LANG_C
  ac_cv_static_assertion_macros_work="yes"
  AC_TRY_COMPILE([$configure_static_assert_macros],
                 [CONFIGURE_STATIC_ASSERT(1)],
                 ,
                 ac_cv_static_assertion_macros_work="no")
  AC_TRY_COMPILE([$configure_static_assert_macros],
                 [CONFIGURE_STATIC_ASSERT(0)],
                 ac_cv_static_assertion_macros_work="no",
                 )
  AC_LANG_CPLUSPLUS
  AC_TRY_COMPILE([$configure_static_assert_macros],
                 [CONFIGURE_STATIC_ASSERT(1)],
                 ,
                 ac_cv_static_assertion_macros_work="no")
  AC_TRY_COMPILE([$configure_static_assert_macros],
                 [CONFIGURE_STATIC_ASSERT(0)],
                 ac_cv_static_assertion_macros_work="no",
                 )
  AC_LANG_RESTORE
 ])
AC_MSG_RESULT("$ac_cv_static_assertion_macros_work")
if test "$ac_cv_static_assertion_macros_work" = "no"; then
    AC_MSG_ERROR([Compiler cannot compile macros used in autoconf tests.])
fi

fi # COMPILE_ENVIRONMENT

dnl ========================================================
dnl Checking for 64-bit OS
dnl ========================================================
if test "$COMPILE_ENVIRONMENT"; then
AC_LANG_SAVE
AC_LANG_C
AC_MSG_CHECKING(for 64-bit OS)
AC_TRY_COMPILE([$configure_static_assert_macros],
               [CONFIGURE_STATIC_ASSERT(sizeof(long) == 8)],
               result="yes", result="no")
AC_MSG_RESULT("$result")
if test "$result" = "yes"; then
    AC_DEFINE(HAVE_64BIT_OS)
    HAVE_64BIT_OS=1
fi
AC_SUBST(HAVE_64BIT_OS)
AC_LANG_RESTORE
fi # COMPILE_ENVIRONMENT

dnl ========================================================
dnl Enable high-memory support on OS/2, disabled by default
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(os2-high-mem,
[  --enable-os2-high-mem Enable high-memory support on OS/2],
    MOZ_OS2_HIGH_MEMORY=1,
    MOZ_OS2_HIGH_MEMORY= )
AC_SUBST(MOZ_OS2_HIGH_MEMORY)

dnl ========================================================
dnl System overrides of the defaults for host
dnl ========================================================
case "$host" in
*-beos*)
    HOST_CFLAGS="$HOST_CFLAGS -DXP_BEOS -DBeOS -DBEOS -D_POSIX_SOURCE -DNO_X11"
    HOST_NSPR_MDCPUCFG='\"md/_beos.cfg\"'
    HOST_OPTIMIZE_FLAGS="${HOST_OPTIMIZE_FLAGS=-O3}"
    ;;

*cygwin*|*mingw*|*mks*|*msvc*|*wince)
    if test -n "$_WIN32_MSVC"; then
        HOST_AR=lib
        HOST_AR_FLAGS='-NOLOGO -OUT:"$@"'
        HOST_CFLAGS="$HOST_CFLAGS -TC -nologo -Fd\$(HOST_PDBFILE)"
        HOST_RANLIB='echo ranlib'
    else
        HOST_CFLAGS="$HOST_CFLAGS -mno-cygwin"
    fi
    HOST_CFLAGS="$HOST_CFLAGS -DXP_WIN32 -DXP_WIN -DWIN32 -D_WIN32 -DNO_X11"
    HOST_NSPR_MDCPUCFG='\"md/_winnt.cfg\"'
    HOST_OPTIMIZE_FLAGS="${HOST_OPTIMIZE_FLAGS=-O2}"
    HOST_BIN_SUFFIX=.exe
    case "$host" in
    *mingw*)
    dnl MinGW/MSYS does not need CYGWIN_WRAPPER
        ;;
    *)
        CYGWIN_WRAPPER="${srcdir}/build/cygwin-wrapper"
        if test "`echo ${srcdir} | grep -c ^/ 2>/dev/null`" = 0; then
            _pwd=`pwd`
            CYGWIN_WRAPPER="${_pwd}/${srcdir}/build/cygwin-wrapper"
        fi
        if test "`${PERL} -v | grep -c cygwin  2>/dev/null`" = 0; then
            AS_PERL=1
            PERL="${CYGWIN_WRAPPER} $PERL"
        fi

        if test "`${PYTHON} -c 'import sys; print sys.platform;'`" != "cygwin"; then
            PYTHON="${CYGWIN_WRAPPER} $PYTHON"
        fi
        ;;
    esac
    ;;

*-darwin*)
    HOST_CFLAGS="$HOST_CFLAGS -DXP_UNIX -DXP_MACOSX -DNO_X11"
    HOST_NSPR_MDCPUCFG='\"md/_darwin.cfg\"'
    HOST_OPTIMIZE_FLAGS="${HOST_OPTIMIZE_FLAGS=-O3}"
    MOZ_FIX_LINK_PATHS='-Wl,-executable_path,$(LIBXUL_DIST)/bin'
    LIBXUL_LIBS='$(XPCOM_FROZEN_LDOPTS) $(LIBXUL_DIST)/bin/XUL -lobjc'
    ;;

*-linux*)
    HOST_CFLAGS="$HOST_CFLAGS -DXP_UNIX"
    HOST_NSPR_MDCPUCFG='\"md/_linux.cfg\"'
    HOST_OPTIMIZE_FLAGS="${HOST_OPTIMIZE_FLAGS=-O3}"
    ;;

*os2*)
    HOST_CFLAGS="$HOST_CFLAGS -DXP_OS2 -DNO_X11 -Zomf"
    HOST_NSPR_MDCPUCFG='\"md/_os2.cfg\"'
    HOST_OPTIMIZE_FLAGS="${HOST_OPTIMIZE_FLAGS=-O2}"
    HOST_BIN_SUFFIX=.exe
    MOZ_FIX_LINK_PATHS=
    ;;

*-osf*)
    HOST_CFLAGS="$HOST_CFLAGS -DXP_UNIX"
    HOST_NSPR_MDCPUCFG='\"md/_osf1.cfg\"'
    HOST_OPTIMIZE_FLAGS="${HOST_OPTIMIZE_FLAGS=-O2}"
    ;;

*)
    HOST_CFLAGS="$HOST_CFLAGS -DXP_UNIX"
    HOST_OPTIMIZE_FLAGS="${HOST_OPTIMIZE_FLAGS=-O2}"
    ;;
esac

dnl Get mozilla version from central milestone file
MOZILLA_VERSION=`$PERL $srcdir/config/milestone.pl -topsrcdir $srcdir`

dnl Get version of various core apps from the version files.
FIREFOX_VERSION=`cat $topsrcdir/browser/config/version.txt`
THUNDERBIRD_VERSION=`cat $topsrcdir/mail/config/version.txt`
SUNBIRD_VERSION=`cat $topsrcdir/calendar/sunbird/config/version.txt`
SEAMONKEY_VERSION=`cat $topsrcdir/suite/config/version.txt`

AC_DEFINE_UNQUOTED(MOZILLA_VERSION,"$MOZILLA_VERSION")
AC_DEFINE_UNQUOTED(MOZILLA_VERSION_U,$MOZILLA_VERSION)

dnl ========================================================
dnl System overrides of the defaults for target
dnl ========================================================

case "$target" in
*-aix*)
    AC_DEFINE(AIX)
    if test ! "$GNU_CC"; then
        if test ! "$HAVE_64BIT_OS"; then
            # Compiling with Visual Age C++ object model compat is the
            # default. To compile with object model ibm, add 
            # AIX_OBJMODEL=ibm to .mozconfig.
            if test "$AIX_OBJMODEL" = "ibm"; then
                CXXFLAGS="$CXXFLAGS -qobjmodel=ibm"
            else
                AIX_OBJMODEL=compat
            fi
        else
            AIX_OBJMODEL=compat
        fi
        AC_SUBST(AIX_OBJMODEL)
        DSO_LDOPTS='-qmkshrobj=1'
        DSO_CFLAGS='-qflag=w:w'
        DSO_PIC_CFLAGS=
        LDFLAGS="$LDFLAGS -Wl,-brtl -blibpath:/usr/lib:/lib"
        AC_MSG_WARN([Clearing MOZ_FIX_LINK_PATHS till we can fix bug 332075.])
        MOZ_FIX_LINK_PATHS=
        MKSHLIB='$(CXX) $(DSO_LDOPTS) -o $@'
        MKCSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
        if test "$COMPILE_ENVIRONMENT"; then
            AC_LANG_SAVE
            AC_LANG_CPLUSPLUS
            AC_MSG_CHECKING([for VisualAge C++ compiler version >= 5.0.2.0])
            AC_TRY_COMPILE([],
                [#if (__IBMCPP__ < 502)
                 #error "Bad compiler"
                 #endif],
                _BAD_COMPILER=,_BAD_COMPILER=1)
            if test -n "$_BAD_COMPILER"; then
                AC_MSG_RESULT([no])    
                AC_MSG_ERROR([VisualAge C++ version 5.0.2.0 or higher is required to build.])
            else
                AC_MSG_RESULT([yes])    
            fi
            AC_LANG_RESTORE
            TARGET_COMPILER_ABI="ibmc"
            CC_VERSION=`lslpp -Lcq vac.C 2>/dev/null | awk -F: '{ print $3 }'`
            CXX_VERSION=`lslpp -Lcq vacpp.cmp.core 2>/dev/null | awk -F: '{ print $3 }'`
        fi
    fi
    case "${target_os}" in
    aix4.1*)
        DLL_SUFFIX='_shr.a'
        ;;
    esac
    if test "$COMPILE_ENVIRONMENT"; then
        AC_CHECK_HEADERS(sys/inttypes.h)
    fi
    AC_DEFINE(NSCAP_DISABLE_DEBUG_PTR_TYPES)
    ;;

*-beos*)
    no_x=yes
    MKSHLIB='$(CXX) $(CXXFLAGS) $(DSO_LDOPTS) -Wl,-h,$@ -o $@'
    _PLATFORM_DEFAULT_TOOLKIT="cairo-beos"
    DSO_LDOPTS='-nostart'
    TK_LIBS='-lbe -lroot'
    LIBS="$LIBS -lbe"
    if test "$COMPILE_ENVIRONMENT"; then
        AC_CHECK_LIB(bind,main,LIBS="$LIBS -lbind")
        AC_CHECK_LIB(zeta,main,LIBS="$LIBS -lzeta")
    fi
    _WARNINGS_CFLAGS="${_WARNINGS_CFLAGS} -Wno-multichar"
    _WARNINGS_CXXFLAGS="${_WARNINGS_CXXFLAGS} -Wno-multichar"
    _MOZ_USE_RTTI=1
    USE_DEPENDENT_LIBS=
    MOZ_USER_DIR="Mozilla"
    ;;

*-bsdi*)
    dnl -pedantic doesn't play well with BSDI's _very_ modified gcc (shlicc2)
    _PEDANTIC=
    _IGNORE_LONG_LONG_WARNINGS=
    case $OS_RELEASE in
	4.*|5.*)
            STRIP="$STRIP -d"
            ;;
	*)
	    DSO_CFLAGS=''
	    DSO_LDOPTS='-r'
	    _WARNINGS_CFLAGS="-Wall"
	    _WARNINGS_CXXFLAGS="-Wall"
	    # The test above doesn't work properly, at least on 3.1.
	    MKSHLIB_FORCE_ALL=''
	    MKSHLIB_UNFORCE_ALL=''
	;;
    esac
    ;;

*-darwin*) 
    MKSHLIB='$(CXX) $(CXXFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -o $@'
    MKCSHLIB='$(CC) $(CFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -o $@'

    _PEDANTIC=
    CFLAGS="$CFLAGS -fpascal-strings -no-cpp-precomp -fno-common"
    CXXFLAGS="$CXXFLAGS -fpascal-strings -no-cpp-precomp -fno-common"
    DLL_SUFFIX=".dylib"
    DSO_LDOPTS=''
    STRIP="$STRIP -x -S"
    _PLATFORM_DEFAULT_TOOLKIT='cairo-cocoa'
    MOZ_ENABLE_POSTSCRIPT=
    TARGET_NSPR_MDCPUCFG='\"md/_darwin.cfg\"'
    # set MACOSX to generate lib/mac/MoreFiles/Makefile
    MACOSX=1

    dnl check for the presence of the -dead_strip linker flag
    AC_MSG_CHECKING([for -dead_strip option to ld])
    _SAVE_LDFLAGS=$LDFLAGS
    LDFLAGS="$LDFLAGS -Wl,-dead_strip"
    AC_TRY_LINK(,[return 0;],_HAVE_DEAD_STRIP=1,_HAVE_DEAD_STRIP=)
    if test -n "$_HAVE_DEAD_STRIP" ; then
        AC_MSG_RESULT([yes])
        MOZ_OPTIMIZE_LDFLAGS="-Wl,-dead_strip"
    else
        AC_MSG_RESULT([no])
    fi
    LDFLAGS=$_SAVE_LDFLAGS
    ;;

*-freebsd*)
    if test `test -x /usr/bin/objformat && /usr/bin/objformat || echo aout` != "elf"; then
	DLL_SUFFIX=".so.1.0"
	DSO_LDOPTS="-shared"
    fi
    if test ! "$GNU_CC"; then
	DSO_LDOPTS="-Bshareable $DSO_LDOPTS"
    fi
# Can't have force w/o an unforce.
#    # Hack for FreeBSD 2.2
#    if test -z "$MKSHLIB_FORCE_ALL"; then
#	MKSHLIB_FORCE_ALL='-Wl,-Bforcearchive'
#	MKSHLIB_UNFORCE_ALL=''
#    fi
    ;; 

*-hpux*)
    DLL_SUFFIX=".sl"
    if test ! "$GNU_CC"; then
    	DSO_LDOPTS='-b -Wl,+s'
    	DSO_CFLAGS=""
    	DSO_PIC_CFLAGS="+Z"
    	MKSHLIB='$(CXX) $(CXXFLAGS) $(DSO_LDOPTS) -L$(LIBXUL_DIST)/bin -o $@'
    	MKCSHLIB='$(LD) -b +s -L$(LIBXUL_DIST)/bin -o $@'
        CXXFLAGS="$CXXFLAGS -Wc,-ansi_for_scope,on"
    else
        DSO_LDOPTS='-b -E +s'
        MKSHLIB='$(LD) $(DSO_LDOPTS) -L$(LIBXUL_DIST)/bin -L$(LIBXUL_DIST)/lib -o $@'
        MKCSHLIB='$(LD) $(DSO_LDOPTS) -L$(LIBXUL_DIST)/bin -L$(LIBXUL_DIST)/lib -o $@'
    fi
    MOZ_POST_PROGRAM_COMMAND='chatr +s enable'
    AC_DEFINE(NSCAP_DISABLE_DEBUG_PTR_TYPES)
    ;;

*-irix5*)
    AC_DEFINE(IRIX)
    DSO_LDOPTS='-elf -shared'

    if test "$GNU_CC"; then
       MKSHLIB='$(CXX) $(CXXFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -o $@'
       MKCSHLIB='$(CC) $(CFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -o $@'
       MKSHLIB_FORCE_ALL='-Wl,-all'
       MKSHLIB_UNFORCE_ALL='-Wl,-none'
       CXXFLAGS="$CXXFLAGS -D_LANGUAGE_C_PLUS_PLUS"
    else
       MKSHLIB='$(LD) $(DSO_LDOPTS) -o $@'
       MKCSHLIB='$(LD) $(DSO_LDOPTS) -o $@'
       MKSHLIB_FORCE_ALL='-all'
       MKSHLIB_UNFORCE_ALL='-none'
    fi
    ;;

*-irix6*)
    AC_DEFINE(IRIX)
    dnl the irix specific xptcinvoke code is written against the n32 ABI so we *must* 
    dnl compile and link using -n32
    USE_N32=1
    TARGET_COMPILER_ABI=n32
    DSO_LDOPTS='-elf -shared'
    MKSHLIB='$(CCC) $(CXXFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -o $@'
    MKCSHLIB='$(CC) $(CFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -o $@'
    _MOZ_EXCEPTIONS_FLAGS_OFF="-LANG:exceptions=OFF"
    _MOZ_EXCEPTIONS_FLAGS_ON="-LANG:exceptions=ON"
    if test "$GNU_CC"; then
       MKSHLIB_FORCE_ALL='-Wl,-all'
       MKSHLIB_UNFORCE_ALL='-Wl,-none'
       _WARNINGS_CFLAGS="-Wall"
       _WARNINGS_CXXFLAGS="-Wall"
       CXXFLAGS="$CXXFLAGS -D_LANGUAGE_C_PLUS_PLUS"
    else
       MKSHLIB_FORCE_ALL='-all'
       MKSHLIB_UNFORCE_ALL='-none'
	   AR_LIST="$AR t"
	   AR_EXTRACT="$AR x"
	   AR_DELETE="$AR d"
	   AR='$(CXX) -ar'
	   AR_FLAGS='-o $@'
       CFLAGS="$CFLAGS -woff 3262 -G 4"
       CXXFLAGS="$CXXFLAGS -woff 3262 -G 4"
       if test -n "$USE_N32"; then
	   ASFLAGS="$ASFLAGS -n32"
	   CFLAGS="$CFLAGS -n32"
	   CXXFLAGS="$CXXFLAGS -n32"
	   LDFLAGS="$LDFLAGS -n32"
       fi
       AC_DEFINE(NSCAP_DISABLE_DEBUG_PTR_TYPES)
       AC_MSG_WARN([Clearing MOZ_FIX_LINK_PATHS for OSF/1 as fix for bug 333545 (till the reference bug 332075 is fixed.])
       MOZ_FIX_LINK_PATHS=
    fi
    if test -z "$GNU_CXX"; then
      MIPSPRO_CXX=1
    fi
    ;;

*-*linux*)
    TARGET_NSPR_MDCPUCFG='\"md/_linux.cfg\"'
    MOZ_DEBUG_FLAGS="-g -fno-inline"  # most people on linux use gcc/gdb,
                                      # and that combo is not yet good at
                                      # debugging inlined functions (even
                                      # when using DWARF2 as the debugging
                                      # format)    

    case "${target_cpu}" in
    alpha*)
    	CFLAGS="$CFLAGS -mieee"
    	CXXFLAGS="$CXXFLAGS -mieee"
    ;;
    i*86)
    	USE_ELF_DYNSTR_GC=1
        MOZ_ENABLE_OLD_ABI_COMPAT_WRAPPERS=1
    ;;
    mips*)
        CFLAGS="$CFLAGS -Wa,-xgot"
        CXXFLAGS="$CXXFLAGS -Wa,-xgot"
    ;;
    esac
    ;;

*-wince*)

    MOZ_TOOLS_DIR=`echo $MOZ_TOOLS`
    AR_LIST="$AR -list"
    AR_EXTRACT="$AR -extract"
    AR_DELETE="$AR d"
    AR_FLAGS='-OUT:"$@"'

    DSO_CFLAGS=
    DSO_PIC_CFLAGS=
    DLL_SUFFIX=.dll
    BIN_SUFFIX='.exe'
    RC=rc.exe
    # certain versions of cygwin's makedepend barf on the 
    # #include <string> vs -I./dist/include/string issue so don't use it
    SYSTEM_MAKEDEPEND=

    HOST_CC=cl
    HOST_CXX=cl
    HOST_LD=link
    HOST_AR='lib -OUT:$@'
    HOST_RANLIB='echo ranlib'
        
    WARNINGS_AS_ERRORS='-WX'
	MOZ_OPTIMIZE_FLAGS='-O1'
    AR_FLAGS='-NOLOGO -OUT:"$@"'
    ASM_SUFFIX=asm
    CFLAGS="$CFLAGS -W3 -Gy -Fd\$(PDBFILE)"
    CXXFLAGS="$CXXFLAGS -W3 -Gy -Fd\$(PDBFILE)"
    DLL_PREFIX=
    DOXYGEN=:
    DSO_LDOPTS=-SUBSYSTEM:WINDOWSCE
    DYNAMIC_XPCOM_LIBS='$(LIBXUL_DIST)/lib/xpcom.lib $(LIBXUL_DIST)/lib/xpcom_core.lib'
    GARBAGE=
    IMPORT_LIB_SUFFIX=lib
    LIBS="$LIBS"
    LIBXUL_LIBS='$(LIBXUL_DIST)/lib/xpcom.lib $(LIBXUL_DIST)/lib/xul.lib'
    LIB_PREFIX=
    LIB_SUFFIX=lib 
    MKCSHLIB='$(LD) -NOLOGO -DLL -OUT:$@ $(DSO_LDOPTS)'
    MKSHLIB='$(LD) -NOLOGO -DLL -OUT:$@ $(DSO_LDOPTS)'
    MKSHLIB_FORCE_ALL=
    MKSHLIB_UNFORCE_ALL=
    MOZ_COMPONENT_NSPR_LIBS='$(NSPR_LIBS)'
    MOZ_COMPONENT_NSPR_LIBS='$(NSPR_LIBS)'
    MOZ_DEBUG_FLAGS='-Zi'
    MOZ_DEBUG_LDFLAGS='-DEBUG -DEBUGTYPE:CV'
    MOZ_FIX_LINK_PATHS=
    MOZ_JS_LIBS='$(LIBXUL_DIST)/lib/js$(MOZ_BITS)$(VERSION_NUMBER).lib'
    MOZ_XPCOM_OBSOLETE_LIBS='$(LIBXUL_DIST)/lib/xpcom_compat.lib'
    OBJ_SUFFIX=obj
    RANLIB='echo not_ranlib'
    STRIP='echo not_strip'
    TARGET_NSPR_MDCPUCFG='\"md/_wince.cfg\"'
    UNZIP=unzip
    XARGS=xargs
    XPCOM_FROZEN_LDOPTS='$(LIBXUL_DIST)/lib/xpcom.lib'
    ZIP=zip
    LIBIDL_CFLAGS="-I$MOZ_TOOLS_DIR/include ${GLIB_CFLAGS}"
    LIBIDL_LIBS="$MOZ_TOOLS_DIR/lib/libidl-0.6_s.lib $MOZ_TOOLS_DIR/lib/glib-1.2_s.lib"
    STATIC_LIBIDL=1

    AC_DEFINE(HAVE_SNPRINTF)
    AC_DEFINE(_WINDOWS)
    AC_DEFINE(_WIN32)
    AC_DEFINE(WIN32)
    AC_DEFINE(XP_WIN)
    AC_DEFINE(XP_WIN32)
    AC_DEFINE(HW_THREADS)
    AC_DEFINE(STDC_HEADERS)
    AC_DEFINE(NEW_H, <new>)
    AC_DEFINE(WIN32_LEAN_AND_MEAN)

    TARGET_MD_ARCH=win32
    _PLATFORM_DEFAULT_TOOLKIT='windows'
    BIN_SUFFIX='.exe'
    USE_SHORT_LIBNAME=1
    MOZ_ENABLE_COREXFONTS=
    MOZ_ENABLE_POSTSCRIPT=
    MOZ_USER_DIR="Mozilla"
;;


*-mingw*|*-cygwin*|*-msvc*|*-mks*)
    DSO_CFLAGS=
    DSO_PIC_CFLAGS=
    DLL_SUFFIX=.dll
    RC=rc.exe
    # certain versions of cygwin's makedepend barf on the 
    # #include <string> vs -I./dist/include/string issue so don't use it
    SYSTEM_MAKEDEPEND=
    if test -n "$GNU_CC"; then
        CC="$CC -mno-cygwin"
        CXX="$CXX -mno-cygwin"
        CPP="$CPP -mno-cygwin"
        CFLAGS="$CFLAGS -mms-bitfields"
        CXXFLAGS="$CXXFLAGS -mms-bitfields"
        DSO_LDOPTS='-shared'
        MKSHLIB='$(CXX) $(DSO_LDOPTS) -o $@'
        MKCSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
        RC='$(WINDRES)'
        # Use temp file for windres (bug 213281)
        RCFLAGS='-O coff --use-temp-file'
        # mingw doesn't require kernel32, user32, and advapi32 explicitly
        LIBS="$LIBS -lgdi32 -lwinmm -lwsock32"
        MOZ_JS_LIBS='-L$(LIBXUL_DIST)/lib -ljs$(MOZ_BITS)$(VERSION_NUMBER)'
        MOZ_FIX_LINK_PATHS=
        DYNAMIC_XPCOM_LIBS='-L$(LIBXUL_DIST)/lib -lxpcom -lxpcom_core'
        XPCOM_FROZEN_LDOPTS='-L$(LIBXUL_DIST)/lib -lxpcom'
        DLL_PREFIX=
        IMPORT_LIB_SUFFIX=dll.a
    else
        TARGET_COMPILER_ABI=msvc
        HOST_CC='$(CC)'
        HOST_CXX='$(CXX)'
        HOST_LD='$(LD)'
        AR='lib -NOLOGO -OUT:"$@"'
        AR_FLAGS=
        RANLIB='echo not_ranlib'
        STRIP='echo not_strip'
        XARGS=xargs
        ZIP=zip
        UNZIP=unzip
        DOXYGEN=:
        GARBAGE='$(OBJDIR)/vc20.pdb $(OBJDIR)/vc40.pdb'
        OBJ_SUFFIX=obj
        LIB_SUFFIX=lib
        DLL_PREFIX=
        LIB_PREFIX=
        IMPORT_LIB_SUFFIX=lib
        MKSHLIB='$(LD) -NOLOGO -DLL -OUT:$@ -PDB:$(PDBFILE) $(DSO_LDOPTS)'
        MKCSHLIB='$(LD) -NOLOGO -DLL -OUT:$@ -PDB:$(PDBFILE) $(DSO_LDOPTS)'
        MKSHLIB_FORCE_ALL=
        MKSHLIB_UNFORCE_ALL=
        DSO_LDOPTS=-SUBSYSTEM:WINDOWS
        CFLAGS="$CFLAGS -W3 -Gy -Fd\$(PDBFILE)"
        CXXFLAGS="$CXXFLAGS -W3 -Gy -Fd\$(PDBFILE)"
        LIBS="$LIBS kernel32.lib user32.lib gdi32.lib winmm.lib wsock32.lib advapi32.lib"
        MOZ_DEBUG_FLAGS='-Zi'
        MOZ_DEBUG_LDFLAGS='-DEBUG -DEBUGTYPE:CV'
        WARNINGS_AS_ERRORS='-WX'
    	MOZ_OPTIMIZE_FLAGS='-O1'
        MOZ_JS_LIBS='$(LIBXUL_DIST)/lib/js$(MOZ_BITS)$(VERSION_NUMBER).lib'
        MOZ_FIX_LINK_PATHS=
        DYNAMIC_XPCOM_LIBS='$(LIBXUL_DIST)/lib/xpcom.lib $(LIBXUL_DIST)/lib/xpcom_core.lib'
        XPCOM_FROZEN_LDOPTS='$(LIBXUL_DIST)/lib/xpcom.lib'
        LIBXUL_LIBS='$(LIBXUL_DIST)/lib/xpcom.lib $(LIBXUL_DIST)/lib/xul.lib'
        MOZ_COMPONENT_NSPR_LIBS='$(NSPR_LIBS)'
        MOZ_XPCOM_OBSOLETE_LIBS='$(LIBXUL_DIST)/lib/xpcom_compat.lib'
        if test $_MSC_VER -ge 1400; then
            LDFLAGS="$LDFLAGS -NXCOMPAT -SAFESEH"
        fi
    fi
    MOZ_JPEG_LIBS='$(call EXPAND_LIBNAME_PATH,jpeg$(MOZ_BITS)$(VERSION_NUMBER),$(DEPTH)/jpeg)'
    MOZ_PNG_LIBS='$(call EXPAND_LIBNAME_PATH,png,$(DEPTH)/modules/libimg/png)'
    AC_DEFINE(HAVE_SNPRINTF)
    AC_DEFINE(_WINDOWS)
    AC_DEFINE(_WIN32)
    AC_DEFINE(WIN32)
    AC_DEFINE(XP_WIN)
    AC_DEFINE(XP_WIN32)
    AC_DEFINE(HW_THREADS)
    AC_DEFINE(STDC_HEADERS)
    AC_DEFINE(NEW_H, <new>)
    AC_DEFINE(WIN32_LEAN_AND_MEAN)
    TARGET_MD_ARCH=win32
    _PLATFORM_DEFAULT_TOOLKIT='cairo-windows'
    BIN_SUFFIX='.exe'
    USE_SHORT_LIBNAME=1
    MOZ_ENABLE_POSTSCRIPT=
    MOZ_USER_DIR="Mozilla"

    dnl Hardcode to win95 for now - cls
    TARGET_NSPR_MDCPUCFG='\"md/_win95.cfg\"'

    dnl set NO_X11 defines here as the general check is skipped on win32
    no_x=yes
    AC_DEFINE(NO_X11)

    dnl MinGW/MSYS doesn't provide or need cygpath
    case "$host" in
    *-mingw*)
	CYGPATH_W=echo
	CYGPATH_S=cat
	MOZ_BUILD_ROOT=`cd $MOZ_BUILD_ROOT && pwd -W`
	;;
    *-cygwin*|*-msvc*|*-mks*)
	CYGPATH_W="cygpath -a -w"
	CYGPATH_S="sed -e s|\\\\|/|g"
	MOZ_BUILD_ROOT=`$CYGPATH_W $MOZ_BUILD_ROOT | $CYGPATH_S`
	;;
    esac
    case "$host" in
    *-mingw*|*-cygwin*|*-msvc*|*-mks*)

    if test -z "$MOZ_TOOLS"; then
        AC_MSG_ERROR([MOZ_TOOLS is not set])
    fi

    MOZ_TOOLS_DIR=`cd $MOZ_TOOLS && pwd`
    if test "$?" != "0" || test -z "$MOZ_TOOLS_DIR"; then
        AC_MSG_ERROR([cd \$MOZ_TOOLS failed. MOZ_TOOLS ==? $MOZ_TOOLS])
    fi
    if test `echo ${PATH}: | grep -ic "$MOZ_TOOLS_DIR/bin:"` = 0; then
        AC_MSG_ERROR([\$MOZ_TOOLS\\bin must be in your path.])
    fi
    MOZ_TOOLS_DIR=`$CYGPATH_W $MOZ_TOOLS_DIR | $CYGPATH_S`

    if test -n "$GLIB_PREFIX"; then
        _GLIB_PREFIX_DIR=`cd $GLIB_PREFIX && pwd`
        if test "$?" = "0"; then
            if test `echo ${PATH}: | grep -ic "$_GLIB_PREFIX_DIR/bin:"` = 0; then
                AC_MSG_ERROR([GLIB_PREFIX must be in your \$PATH.])
            fi
            _GLIB_PREFIX_DIR=`$CYGPATH_W $_GLIB_PREFIX_DIR | $CYGPATH_S`
        else
            AC_MSG_ERROR([GLIB_PREFIX is set but "${GLIB_PREFIX}" is not a directory.])
        fi
    else
        _GLIB_PREFIX_DIR=$MOZ_TOOLS_DIR
    fi
    if test ! -f "${_GLIB_PREFIX_DIR}/include/glib.h"; then
        AC_MSG_ERROR([Cannot find $_GLIB_PREFIX_DIR/include/glib.h .])
    fi
    GLIB_CFLAGS="-I${_GLIB_PREFIX_DIR}/include"
    if test -f "${_GLIB_PREFIX_DIR}/lib/glib-1.2_s.lib"; then
        GLIB_LIBS="${_GLIB_PREFIX_DIR}/lib/glib-1.2_s.lib"
    elif test -f "${_GLIB_PREFIX_DIR}/lib/glib-1.2.lib"; then
        GLIB_LIBS="${_GLIB_PREFIX_DIR}/lib/glib-1.2.lib"
    else
        AC_MSG_ERROR([Cannot find $_GLIB_PREFIX_DIR/lib/glib-1.2.lib or $_GLIB_PREFIX_DIR/lib/glib-1.2_s.lib])
    fi

    if test -n "$LIBIDL_PREFIX"; then
        _LIBIDL_PREFIX_DIR=`cd $LIBIDL_PREFIX && pwd`
        if test "$?" = "0"; then
            if test `echo ${PATH}: | grep -ic "$_LIBIDL_PREFIX_DIR/bin:"` = 0; then
                AC_MSG_ERROR([LIBIDL_PREFIX must be in your \$PATH.])
            fi
            _LIBIDL_PREFIX_DIR=`$CYGPATH_W $_LIBIDL_PREFIX_DIR | $CYGPATH_S`
        else
            AC_MSG_ERROR([LIBIDL_PREFIX is set but "${LIBIDL_PREFIX}" is not a directory.])
        fi
    else
        _LIBIDL_PREFIX_DIR=$MOZ_TOOLS_DIR
    fi        
    if test ! -f "${_LIBIDL_PREFIX_DIR}/include/libIDL/IDL.h"; then
        AC_MSG_ERROR([Cannot find $_LIBIDL_PREFIX_DIR/include/libIDL/IDL.h .])
    fi
    LIBIDL_CFLAGS="-I${_LIBIDL_PREFIX_DIR}/include ${GLIB_CFLAGS}"
    if test -f "${_LIBIDL_PREFIX_DIR}/lib/libidl-0.6_s.lib"; then
        LIBIDL_LIBS="${_LIBIDL_PREFIX_DIR}/lib/libidl-0.6_s.lib"
        STATIC_LIBIDL=1
    elif test -f "${_LIBIDL_PREFIX_DIR}/lib/libidl-0.6.lib"; then
        LIBIDL_LIBS="${_LIBIDL_PREFIX_DIR}/lib/libidl-0.6.lib"
    else
        AC_MSG_ERROR([Cannot find $_LIBIDL_PREFIX_DIR/lib/libidl-0.6.lib or $_LIBIDL_PREFIX_DIR/lib/libidl-0.6_s.lib])
    fi
    LIBIDL_LIBS="${LIBIDL_LIBS} ${GLIB_LIBS}"
    ;;

    *) # else cross-compiling
        if test -n "$GLIB_PREFIX"; then
            GLIB_CFLAGS="-I${GLIB_PREFIX}/include"
            if test -f "${GLIB_PREFIX}/lib/glib-1.2_s.lib"; then
                GLIB_LIBS="${GLIB_PREFIX}/lib/glib-1.2_s.lib"
            elif test -f "${GLIB_PREFIX}/lib/glib-1.2.lib"; then
                GLIB_LIBS="${GLIB_PREFIX}/lib/glib-1.2.lib"
            else
                AC_MSG_ERROR([Cannot find $GLIB_PREFIX/lib/glib-1.2.lib or $GLIB_PREFIX/lib/glib-1.2_s.lib])
            fi
        fi
        if test -n "$LIBIDL_PREFIX"; then
            LIBIDL_CFLAGS="-I${LIBIDL_PREFIX}/include ${GLIB_CFLAGS}"
            if test -f "${LIBIDL_PREFIX}/lib/libIDL-0.6_s.lib"; then
                LIBIDL_LIBS="${LIBIDL_PREFIX}/lib/libIDL-0.6_s.lib"
                STATIC_LIBIDL=1
            elif test -f "${LIBIDL_PREFIX}/lib/libIDL-0.6.lib"; then
                LIBIDL_LIBS="${LIBIDL_PREFIX}/lib/libIDL-0.6.lib"
            else
                AC_MSG_ERROR([Cannot find $LIBIDL_PREFIX/lib/libIDL-0.6.lib or $LIBIDL_PREFIX/lib/libIDL-0.6_s.lib])
            fi
        fi
        LIBIDL_LIBS="${LIBIDL_LIBS} ${GLIB_LIBS}"
        ;;
    esac 

    case "$target" in
    i*86-*)
    	AC_DEFINE(_X86_)
	;;
    alpha-*)
    	AC_DEFINE(_ALPHA_)
	;;
    mips-*)
    	AC_DEFINE(_MIPS_)
	;;
    *)
    	AC_DEFINE(_CPU_ARCH_NOT_DEFINED)
	;;
    esac
    ;;

*-netbsd*)
    DSO_CFLAGS=''
    CFLAGS="$CFLAGS -Dunix"
    CXXFLAGS="$CXXFLAGS -Dunix"
    if $CC -E - -dM </dev/null | grep __ELF__ >/dev/null; then
        DLL_SUFFIX=".so"
        DSO_PIC_CFLAGS='-fPIC -DPIC'
        DSO_LDOPTS='-shared'
	BIN_FLAGS='-Wl,--export-dynamic'
    else
    	DSO_PIC_CFLAGS='-fPIC -DPIC'
    	DLL_SUFFIX=".so.1.0"
    	DSO_LDOPTS='-shared'
    fi
    # This will fail on a.out systems prior to 1.5.1_ALPHA.
    MKSHLIB_FORCE_ALL='-Wl,--whole-archive'
    MKSHLIB_UNFORCE_ALL='-Wl,--no-whole-archive'
    if test "$LIBRUNPATH"; then
	DSO_LDOPTS="-Wl,-R$LIBRUNPATH $DSO_LDOPTS"
    fi
    MKSHLIB='$(CXX) $(CXXFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -Wl,-soname,lib$(LIBRARY_NAME)$(DLL_SUFFIX) -o $@'
    MKCSHLIB='$(CC) $(CFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -Wl,-soname,lib$(LIBRARY_NAME)$(DLL_SUFFIX) -o $@'
    ;;

*-nto*) 
	AC_DEFINE(NTO)	
	AC_DEFINE(_QNX_SOURCE)
	AC_DEFINE(_i386)
	OS_TARGET=NTO
	WARNINGS_AS_ERRORS=''
	MOZ_OPTIMIZE_FLAGS="-O"
	MOZ_DEBUG_FLAGS="-gstabs"
	USE_PTHREADS=1
	_PEDANTIC=
	LIBS="$LIBS -lsocket -lstdc++"
	_DEFINES_CFLAGS='-Wp,-include -Wp,$(DEPTH)/mozilla-config.h -DMOZILLA_CLIENT -D_POSIX_C_SOURCE=199506'
	_DEFINES_CXXFLAGS='-DMOZILLA_CLIENT -Wp,-include -Wp,$(DEPTH)/mozilla-config.h -D_POSIX_C_SOURCE=199506'
	if test "$with_x" != "yes"
	then
		_PLATFORM_DEFAULT_TOOLKIT="photon"
	    TK_CFLAGS='-I/usr/include/photon'
		TK_LIBS='-lph'
	fi
	case "${target_cpu}" in
	ppc*)
	AC_DEFINE(HAVE_VA_LIST_AS_ARRAY)	
	;;
	esac
	case "${host_cpu}" in
	i*86)
	USE_ELF_DYNSTR_GC=1
	;;
	esac
	;;

*-openbsd*)
    DLL_SUFFIX=".so.1.0"
    DSO_CFLAGS=''
    DSO_PIC_CFLAGS='-fPIC'
    DSO_LDOPTS='-shared -fPIC'
    if test "$LIBRUNPATH"; then
	DSO_LDOPTS="-R$LIBRUNPATH $DSO_LDOPTS"
    fi
    ;;

*-openvms*) 
    AC_DEFINE(NO_PW_GECOS)
    AC_DEFINE(NO_UDSOCK)
    AC_DEFINE(POLL_WITH_XCONNECTIONNUMBER)
    USE_PTHREADS=1
    MKSHLIB_FORCE_ALL='-all'
    MKSHLIB_UNFORCE_ALL='-none'
    AS='as'
    AS_DASH_C_FLAG='-Wc/names=as_is'
    AR_FLAGS='c $@'
    DSO_LDOPTS='-shared -auto_symvec'
    DSO_PIC_CFLAGS=
    MOZ_DEBUG_LDFLAGS='-g'
    COMPAQ_CXX=1
    CC_VERSION=`$CC -V 2>&1 | awk '/ C / { print $3 }'`
    CXX_VERSION=`$CXX -V 2>&1 | awk '/ C\+\+ / { print $3 }'`
    ;;


*-os2*)
    MKSHLIB='$(CXX) $(CXXFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -o $@'
    MKCSHLIB='$(CC) $(CFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -o $@'
    AC_DEFINE(XP_OS2)
    USE_SHORT_LIBNAME=1
    DLL_PREFIX=
    LIB_PREFIX=
    LIB_SUFFIX=lib
    BIN_SUFFIX=".exe"
    DLL_SUFFIX=".dll"
    IMPORT_LIB_SUFFIX=lib
    DSO_PIC_CFLAGS=
    TARGET_MD_ARCH=os2
    _PLATFORM_DEFAULT_TOOLKIT="cairo-os2"
    MOZ_ENABLE_POSTSCRIPT=
    RC=rc.exe
    RCFLAGS='-n'
    MOZ_USER_DIR="Mozilla"

    if test "$MOZTOOLS"; then
        MOZ_TOOLS_DIR=`echo $MOZTOOLS | sed -e 's|\\\\|/|g'`
    else
        AC_MSG_ERROR([MOZTOOLS is not set])
    fi

    # EMX/GCC build
    if test -n "$GNU_CC"; then
        AC_DEFINE(OS2)
        AC_DEFINE(XP_OS2_EMX)
        AC_DEFINE(OS2EMX_PLAIN_CHAR)
        AC_DEFINE(TCPV40HDRS)
        AR=emxomfar
        AR_FLAGS='r $@'
        CFLAGS="$CFLAGS -Zomf"
        CXXFLAGS="$CXXFLAGS -Zomf"
        DSO_LDOPTS='-Zdll'
        BIN_FLAGS='-Zlinker /ST:0x100000'
        IMPLIB='emximp -o'
        FILTER='emxexp -o'
        LDFLAGS='-Zmap'
        WARNINGS_AS_ERRORS='-Werror'
        MOZ_DEBUG_FLAGS="-g -fno-inline"
        MOZ_OPTIMIZE_FLAGS="-O2 -s"
        MOZ_OPTIMIZE_LDFLAGS="-Zlinker /EXEPACK:2 -Zlinker /PACKCODE -Zlinker /PACKDATA"
        MOZ_XPCOM_OBSOLETE_LIBS='-L$(LIBXUL_DIST)/lib $(LIBXUL_DIST)/lib/xpcomct.lib'
        DYNAMIC_XPCOM_LIBS='-L$(LIBXUL_DIST)/lib $(LIBXUL_DIST)/lib/xpcom.lib $(LIBXUL_DIST)/lib/xpcomcor.lib'
        LIBXUL_LIBS='-L$(LIBXUL_DIST)/lib $(LIBXUL_DIST)/lib/xpcom.lib $(LIBXUL_DIST)/lib/xul.lib'
        if test -n "$MOZ_OS2_HIGH_MEMORY"; then
          DSO_LDOPTS="$DSO_LDOPTS -Zhigh-mem"
          LDFLAGS="$LDFLAGS -Zhigh-mem"
          MOZ_OPTIMIZE_LDFLAGS="$MOZ_OPTIMIZE_LDFLAGS -Zhigh-mem"
          AC_DEFINE(MOZ_OS2_HIGH_MEMORY)
        fi

        # GCC for OS/2 currently predefines these, but we don't want them
        _DEFINES_CFLAGS="$_DEFINES_CFLAGS -Uunix -U__unix -U__unix__"
        _DEFINES_CXXFLAGS="$_DEFINES_CXXFLAGS -Uunix -U__unix -U__unix__"

        AC_CACHE_CHECK(for __declspec(dllexport),
           ac_os2_declspec,
           [AC_TRY_COMPILE([__declspec(dllexport) void ac_os2_declspec(void) {}],
                           [return 0;],
                           ac_os2_declspec="yes",
                           ac_os2_declspec="no")])
        if test "$ac_os2_declspec" = "yes"; then
           FILTER='true'
           MOZ_OS2_USE_DECLSPEC='1'
        fi
        
    # Visual Age C++ build
    elif test "$VACPP" = "yes"; then
        MOZ_BUILD_ROOT=`pwd -D`
        OBJ_SUFFIX=obj
        AR=-ilib
        AR_FLAGS='/NOL /NOI /O:$(subst /,\\,$@)'
        AR_LIST='/L'
        AR_EXTRACT='-*'
        AR_DELETE='-'
        AS=alp
        ASFLAGS='-Mb'
        AS_DASH_C_FLAG=''
        ASM_SUFFIX=asm
        LD='-ilink'
        CFLAGS="/Q /qlibansi /Gm+ /Su4 /Mp /Tl9"
        CXXFLAGS="/Q /qlibansi /Gm+ /Su4 /Mp /Tl9 /Gx+"
        MOZ_DEBUG_FLAGS="/Ti+"
        WARNINGS_AS_ERRORS='-WX'
        MOZ_OPTIMIZE_FLAGS="/O+ /Gl+ /G5 /qarch=pentium"
        LDFLAGS="/NOL /M"
        MOZ_DEBUG_LDFLAGS="/DE"
        MOZ_OPTIMIZE_LDFLAGS="/OPTFUNC /EXEPACK:2 /PACKCODE /PACKDATA"
        DSO_LDOPTS=''
        DSO_PIC_CFLAGS=
        IMPLIB='implib /NOL /NOI'
        FILTER='cppfilt -q -B -P'
        AC_DEFINE(NO_ANSI_KEYWORDS)
        AC_DEFINE(OS2,4)
        AC_DEFINE(_X86_)
        AC_DEFINE(XP_OS2_VACPP)
        AC_DEFINE(TCPV40HDRS)
        AC_DEFINE(NSCAP_DISABLE_DEBUG_PTR_TYPES)
        AC_DEFINE(STDC_HEADERS)
        MOZ_COMPONENT_NSPR_LIBS='$(NSPR_LIBS)'
        MKSHLIB='$(LD) $(DSO_LDOPTS)'
        MKCSHLIB='$(LD) $(DSO_LDOPTS)'
        MOZ_JS_LIBS='$(LIBXUL_DIST)/lib/mozjs.lib'
        MOZ_XPCOM_OBSOLETE_LIBS='$(LIBXUL_DIST)/lib/xpcomct.lib'
        DYNAMIC_XPCOM_LIBS='$(LIBXUL_DIST)/lib/xpcom.lib $(LIBXUL_DIST)/lib/xpcomcor.lib'
        LIBXUL_LIBS='$(LIBXUL_DIST)/lib/xpcom.lib $(LIBXUL_DIST)/lib/xul.lib'
    fi
    ;;

alpha*-*-osf*)
    if test "$GNU_CC"; then
      MKSHLIB='$(CXX) $(CXXFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -Wl,-soname,$@ -o $@'
      MKCSHLIB='$(CC) $(CFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -Wl,-soname,$@ -o $@'

    else
	MOZ_DEBUG_FLAGS='-g'
	ASFLAGS='-I$(topsrcdir)/xpcom/reflect/xptcall/public -g'
	CFLAGS="$CFLAGS -ieee"
	CXXFLAGS="$CXXFLAGS "'-noexceptions -ieee  -ptr $(DIST)/cxx_repository'
	DSO_LDOPTS='-shared -msym -expect_unresolved \* -update_registry $(DIST)/so_locations'
	DSO_CFLAGS=
	DSO_PIC_CFLAGS=
	MKCSHLIB='$(CC) $(CFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -soname $@ -o $@'
	MKSHLIB='$(CXX) $(CXXFLAGS) $(DSO_PIC_CFLAGS) $(DSO_LDOPTS) -soname $@ -o $@'
	MKSHLIB_FORCE_ALL='-all'
	MKSHLIB_UNFORCE_ALL='-none'
	dnl Might fix the libxpcom.so breakage on this platform as well....
	AC_DEFINE(NSCAP_DISABLE_TEST_DONTQUERY_CASES)
	AC_DEFINE(NSCAP_DISABLE_DEBUG_PTR_TYPES)
    fi
    if test -z "$GNU_CXX"; then
      COMPAQ_CXX=1
    fi
    AC_DEFINE(NEED_USLEEP_PROTOTYPE)
    ;;

*-qnx*) 
    DIRENT_INO=d_stat.st_ino
    dnl Solves the problems the QNX compiler has with nsCOMPtr.h.
    AC_DEFINE(NSCAP_DISABLE_TEST_DONTQUERY_CASES)
    AC_DEFINE(NSCAP_DISABLE_DEBUG_PTR_TYPES)
    dnl Explicit set STDC_HEADERS to workaround QNX 6.0's failing of std test
    AC_DEFINE(STDC_HEADERS)
    if test "$no_x" = "yes"; then
	    _PLATFORM_DEFAULT_TOOLKIT='photon'
	    TK_CFLAGS='-I/usr/nto/include/photon'
	    TK_LIBS='-lphoton -lphrender'
    fi
    ;;

*-sco*) 
    AC_DEFINE(NSCAP_DISABLE_TEST_DONTQUERY_CASES)
    AC_DEFINE(NSCAP_DISABLE_DEBUG_PTR_TYPES)
    CXXFLAGS="$CXXFLAGS -I/usr/include/CC"
    if test ! "$GNU_CC"; then
       DSO_LDOPTS='-G'
    fi
    ;;

dnl the qsort routine under solaris is faulty
*-solaris*) 
    AC_DEFINE(SOLARIS)
    TARGET_NSPR_MDCPUCFG='\"md/_solaris.cfg\"'
    SYSTEM_MAKEDEPEND=
    # $ORIGIN/.. is for shared libraries under components/ to locate shared
    # libraries one level up (e.g. libnspr4.so)
    LDFLAGS="$LDFLAGS -z ignore -R '\$\$ORIGIN:\$\$ORIGIN/..'"
    if test -z "$GNU_CC"; then
       NS_USE_NATIVE=1
       MOZ_FIX_LINK_PATHS='-R $(LIBXUL_DIST)/bin'
       AC_DEFINE(NSCAP_DISABLE_DEBUG_PTR_TYPES)
       CFLAGS="$CFLAGS -xstrconst -xbuiltin=%all"
       CXXFLAGS="$CXXFLAGS -xbuiltin=%all -features=tmplife -norunpath"
       LDFLAGS="-xildoff -z lazyload -z combreloc $LDFLAGS"
       if test -z "$CROSS_COMPILE" && test -f /usr/lib/ld/map.noexstk; then
           _SAVE_LDFLAGS=$LDFLAGS
           LDFLAGS="-M /usr/lib/ld/map.noexstk $LDFLAGS" 
           AC_TRY_LINK([#include <stdio.h>],
                       [printf("Hello World\n");],
                       ,
                       [LDFLAGS=$_SAVE_LDFLAGS])
       fi
       WARNINGS_AS_ERRORS='-Werror'
       MOZ_OPTIMIZE_FLAGS="-xO4"
       MKSHLIB='$(CXX) $(CXXFLAGS) $(DSO_PIC_FLAGS) $(DSO_LDOPTS) -h $@ -o $@'
       MKCSHLIB='$(CC) $(CFLAGS) $(DSO_PIC_FLAGS) -G -z muldefs -h $@ -o $@'
       MKSHLIB_FORCE_ALL='-z allextract'
       MKSHLIB_UNFORCE_ALL='-z defaultextract'
       DSO_LDOPTS='-G -z muldefs'
       AR_LIST="$AR t"
       AR_EXTRACT="$AR x"
       AR_DELETE="$AR d"
       AR='$(CXX) -xar'
       AR_FLAGS='-o $@'
       AS='/usr/ccs/bin/as'
       ASFLAGS="$ASFLAGS -K PIC -L -P -D_ASM -D__STDC__=0"
       AS_DASH_C_FLAG=''
       TARGET_COMPILER_ABI="sunc"
        CC_VERSION=`$CC -V 2>&1 | grep '^cc:' 2>/dev/null | $AWK -F\: '{ print $2 }'`
        CXX_VERSION=`$CXX -V 2>&1 | grep '^CC:' 2>/dev/null | $AWK -F\: '{ print $2 }'`
       AC_MSG_CHECKING([for Forte compiler version >= WS6U2])
       AC_LANG_SAVE
       AC_LANG_CPLUSPLUS
       AC_TRY_COMPILE([],
           [#if (__SUNPRO_CC < 0x530)
           #error "Denied"
           #endif],
           _BAD_COMPILER=,_BAD_COMPILER=1)
        if test -n "$_BAD_COMPILER"; then
            _res="no"
            AC_MSG_ERROR([Forte version WS6U2 or higher is required to build. Your compiler version is $CC_VERSION .])
        else
            _res="yes"
        fi
        AC_MSG_RESULT([$_res])
        AC_LANG_RESTORE
    else
       ASFLAGS="$ASFLAGS -fPIC"
       DSO_LDOPTS='-G'
       _WARNINGS_CFLAGS=''
       _WARNINGS_CXXFLAGS=''
       if test "$OS_RELEASE" = "5.3"; then
	  AC_DEFINE(MUST_UNDEF_HAVE_BOOLEAN_AFTER_INCLUDES)
       fi
    fi
    if test "$OS_RELEASE" = "5.5.1"; then
       AC_DEFINE(NEED_USLEEP_PROTOTYPE)
    fi
    ;;

*-sunos*) 
    DSO_LDOPTS='-Bdynamic'
    MKSHLIB='-$(LD) $(DSO_LDOPTS) -o $@'
    MKCSHLIB='-$(LD) $(DSO_LDOPTS) -o $@'
    AC_DEFINE(SUNOS4)
    AC_DEFINE(SPRINTF_RETURNS_STRING)
    case "$(target_os)" in
    sunos4.1*)
        DLL_SUFFIX='.so.1.0'
        ;;
    esac
    ;;

*-sysv4.2uw7*) 
	NSPR_LIBS="-lnspr$NSPR_VERSION -lplc$NSPR_VERSION -lplds$NSPR_VERSION -L/usr/ccs/lib -lcrt"
    ;;

*-os2*)
    HOST_NSPR_MDCPUCFG='\"md/_os2.cfg\"'
    ;;

esac

dnl Only one oddball right now (QNX), but this gives us flexibility
dnl if any other platforms need to override this in the future.
AC_DEFINE_UNQUOTED(D_INO,$DIRENT_INO)

dnl ========================================================
dnl Any platform that doesn't have MKSHLIB_FORCE_ALL defined
dnl by now will not have any way to link most binaries (tests
dnl as well as viewer, apprunner, etc.), because some symbols
dnl will be left out of the "composite" .so's by ld as unneeded.
dnl So, by defining NO_LD_ARCHIVE_FLAGS for these platforms,
dnl they can link in the static libs that provide the missing
dnl symbols.
dnl ========================================================
NO_LD_ARCHIVE_FLAGS=
if test -z "$MKSHLIB_FORCE_ALL" || test -z "$MKSHLIB_UNFORCE_ALL"; then
    NO_LD_ARCHIVE_FLAGS=1
fi
case "$target" in
*-os2*)
    NO_LD_ARCHIVE_FLAGS=
    ;;
*-aix4.3*|*-aix5*)
    NO_LD_ARCHIVE_FLAGS=
    ;;
*-openvms*)
    NO_LD_ARCHIVE_FLAGS=
    ;;
*-msvc*|*-mks*|*-mingw*|*-cygwin*|*-wince)
    if test -z "$GNU_CC"; then
        NO_LD_ARCHIVE_FLAGS=
    fi
    ;;
esac
AC_SUBST(NO_LD_ARCHIVE_FLAGS)

dnl
dnl Indicate that platform requires special thread safe 
dnl locking when starting up the OJI JVM 
dnl (see mozilla/modules/oji/src/nsJVMManager.cpp)
dnl ========================================================
case "$target" in
    *-hpux*)      
        AC_DEFINE(MOZ_OJI_REQUIRE_THREAD_SAFE_ON_STARTUP)
        ;;
esac

dnl ========================================================
dnl = Flags to strip unused symbols from .so components
dnl ========================================================
case "$target" in
    *-linux*)
        MOZ_COMPONENTS_VERSION_SCRIPT_LDFLAGS='-Wl,--version-script -Wl,$(BUILD_TOOLS)/gnu-ld-scripts/components-version-script'
        ;;
    *-solaris*)
        if test -z "$GNU_CC"; then
         MOZ_COMPONENTS_VERSION_SCRIPT_LDFLAGS='-M $(BUILD_TOOLS)/gnu-ld-scripts/components-mapfile'
        else
         if test -z "$GCC_USE_GNU_LD"; then
          MOZ_COMPONENTS_VERSION_SCRIPT_LDFLAGS='-Wl,-M -Wl,$(BUILD_TOOLS)/gnu-ld-scripts/components-mapfile'
         else
          MOZ_COMPONENTS_VERSION_SCRIPT_LDFLAGS='-Wl,--version-script -Wl,$(BUILD_TOOLS)/gnu-ld-scripts/components-version-script'
         fi
        fi
        ;;
    *-nto*) 
        MOZ_COMPONENTS_VERSION_SCRIPT_LDFLAGS='-Wl,--version-script,$(BUILD_TOOLS)/gnu-ld-scripts/components-version-script'
        ;;
    *-darwin*)
        AC_MSG_CHECKING(for -exported_symbols_list option to ld)
        AC_CACHE_VAL(ac_cv_exported_symbols_list,
         [
           if $LD -exported_symbols_list 2>&1 | grep "argument missing" >/dev/null; then
             ac_cv_exported_symbols_list=true
           else
             ac_cv_exported_symbols_list=false
           fi
         ])
        if test "$ac_cv_exported_symbols_list" = true; then
          MOZ_COMPONENTS_VERSION_SCRIPT_LDFLAGS='-Wl,-exported_symbols_list -Wl,$(BUILD_TOOLS)/gnu-ld-scripts/components-export-list'
          AC_MSG_RESULT(yes)
        else
          AC_MSG_RESULT(no)
        fi
        ;;
    *-cygwin*|*-mingw*|*-mks*|*-msvc|*-wince)
        if test -n "$GNU_CC"; then
           MOZ_COMPONENTS_VERSION_SCRIPT_LDFLAGS='-Wl,--version-script,$(BUILD_TOOLS)/gnu-ld-scripts/components-version-script'
        fi
        ;;
esac

if test -z "$COMPILE_ENVIRONMENT"; then
    SKIP_COMPILER_CHECKS=1
    SKIP_LIBRARY_CHECKS=1
fi

if test -z "$SKIP_COMPILER_CHECKS"; then
dnl Checks for typedefs, structures, and compiler characteristics.
dnl ========================================================
AC_LANG_C
AC_HEADER_STDC
AC_C_CONST
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_STRUCT_ST_BLKSIZE
AC_MSG_CHECKING(for siginfo_t)
AC_CACHE_VAL(ac_cv_siginfo_t,
 [AC_TRY_COMPILE([#define _POSIX_C_SOURCE 199506L
                  #include <signal.h>],
                 [siginfo_t* info;],
                 [ac_cv_siginfo_t=true],
                 [ac_cv_siginfo_t=false])])
if test "$ac_cv_siginfo_t" = true ; then
  AC_DEFINE(HAVE_SIGINFO_T)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

dnl Visual Age for os/2 also defines size_t and off_t in certain 
dnl  header files.  These defines make Visual Age use the mozilla
dnl  defines types.
if test "$VACPP" = "yes"; then
   AC_DEFINE(__size_t)
   AC_DEFINE(__off_t)
fi

dnl Check for int16_t, int32_t, int64_t, int64, uint, uint_t, and uint16_t.
dnl ========================================================
AC_MSG_CHECKING(for int16_t)
AC_CACHE_VAL(ac_cv_int16_t,
 [AC_TRY_COMPILE([#include <stdio.h>
                  #include <sys/types.h>],
                 [int16_t foo = 0;],
                 [ac_cv_int16_t=true],
                 [ac_cv_int16_t=false])])
if test "$ac_cv_int16_t" = true ; then
  AC_DEFINE(HAVE_INT16_T)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi
AC_MSG_CHECKING(for int32_t)
AC_CACHE_VAL(ac_cv_int32_t,
 [AC_TRY_COMPILE([#include <stdio.h>
                  #include <sys/types.h>],
                 [int32_t foo = 0;],
                 [ac_cv_int32_t=true],
                 [ac_cv_int32_t=false])])
if test "$ac_cv_int32_t" = true ; then
  AC_DEFINE(HAVE_INT32_T)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi
AC_MSG_CHECKING(for int64_t)
AC_CACHE_VAL(ac_cv_int64_t,
 [AC_TRY_COMPILE([#include <stdio.h>
                  #include <sys/types.h>],
                 [int64_t foo = 0;],
                 [ac_cv_int64_t=true],
                 [ac_cv_int64_t=false])])
if test "$ac_cv_int64_t" = true ; then
  AC_DEFINE(HAVE_INT64_T)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi
AC_MSG_CHECKING(for int64)
AC_CACHE_VAL(ac_cv_int64,
 [AC_TRY_COMPILE([#include <stdio.h>
                  #include <sys/types.h>],
                 [int64 foo = 0;],
                 [ac_cv_int64=true],
                 [ac_cv_int64=false])])
if test "$ac_cv_int64" = true ; then
  AC_DEFINE(HAVE_INT64)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi
AC_MSG_CHECKING(for uint)
AC_CACHE_VAL(ac_cv_uint,
 [AC_TRY_COMPILE([#include <stdio.h>
                  #include <sys/types.h>],
                 [uint foo = 0;],
                 [ac_cv_uint=true],
                 [ac_cv_uint=false])])
if test "$ac_cv_uint" = true ; then
  AC_DEFINE(HAVE_UINT)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi
AC_MSG_CHECKING(for uint_t)
AC_CACHE_VAL(ac_cv_uint_t,
 [AC_TRY_COMPILE([#include <stdio.h>
                  #include <sys/types.h>],
                 [uint_t foo = 0;],
                 [ac_cv_uint_t=true],
                 [ac_cv_uint_t=false])])
if test "$ac_cv_uint_t" = true ; then
  AC_DEFINE(HAVE_UINT_T)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi
AC_MSG_CHECKING(for uint16_t)
AC_CACHE_VAL(ac_cv_uint16_t,
 [AC_TRY_COMPILE([#include <stdio.h>
                  #include <sys/types.h>],
                 [uint16_t foo = 0;],
                 [ac_cv_uint16_t=true],
                 [ac_cv_uint16_t=false])])
if test "$ac_cv_uint16_t" = true ; then
  AC_DEFINE(HAVE_UINT16_T)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

dnl On the gcc trunk (as of 2001-02-09) _GNU_SOURCE, and thus __USE_GNU,
dnl are defined when compiling C++ but not C.  Since the result of this
dnl test is used only in C++, do it in C++.
AC_LANG_CPLUSPLUS

AC_MSG_CHECKING(for uname.domainname)
AC_CACHE_VAL(ac_cv_have_uname_domainname_field,
    [AC_TRY_COMPILE([#include <sys/utsname.h>],
        [ struct utsname *res; char *domain; 
            (void)uname(res);  if (res != 0) { domain = res->domainname; } ],
        [ac_cv_have_uname_domainname_field=true],
        [ac_cv_have_uname_domainname_field=false])])

if test "$ac_cv_have_uname_domainname_field" = "true"; then
    AC_DEFINE(HAVE_UNAME_DOMAINNAME_FIELD)
    AC_MSG_RESULT(yes)
else
    AC_MSG_RESULT(no)
fi

AC_MSG_CHECKING(for uname.__domainname)
AC_CACHE_VAL(ac_cv_have_uname_us_domainname_field,
    [AC_TRY_COMPILE([#include <sys/utsname.h>],
        [ struct utsname *res; char *domain; 
            (void)uname(res);  if (res != 0) { domain = res->__domainname; } ],
        [ac_cv_have_uname_us_domainname_field=true],
        [ac_cv_have_uname_us_domainname_field=false])])

if test "$ac_cv_have_uname_us_domainname_field" = "true"; then
    AC_DEFINE(HAVE_UNAME_US_DOMAINNAME_FIELD)
    AC_MSG_RESULT(yes)
else
    AC_MSG_RESULT(no)
fi

AC_LANG_C

dnl Check for usable wchar_t (2 bytes, unsigned)
dnl (we really don't need the unsignedness check anymore)
dnl ========================================================

AC_CACHE_CHECK(for usable wchar_t (2 bytes, unsigned),
    ac_cv_have_usable_wchar_v2,
    [AC_TRY_COMPILE([#include <stddef.h>
                     $configure_static_assert_macros],
                    [CONFIGURE_STATIC_ASSERT(sizeof(wchar_t) == 2);
                     CONFIGURE_STATIC_ASSERT((wchar_t)-1 > (wchar_t) 0)],
                    ac_cv_have_usable_wchar_v2="yes",
                    ac_cv_have_usable_wchar_v2="no")])
if test "$ac_cv_have_usable_wchar_v2" = "yes"; then
    AC_DEFINE(HAVE_CPP_2BYTE_WCHAR_T)
    HAVE_CPP_2BYTE_WCHAR_T=1
else
dnl This is really gcc-only
dnl Do this test using CXX only since some versions of gcc
dnl 2.95-2.97 have a signed wchar_t in c++ only and some versions
dnl only have short-wchar support for c++.
dnl Note that we assume that mac & win32 have short wchar (see nscore.h)

    AC_LANG_SAVE
    AC_LANG_CPLUSPLUS
    _SAVE_CXXFLAGS=$CXXFLAGS
    CXXFLAGS="$CXXFLAGS -fshort-wchar"

    AC_CACHE_CHECK(for compiler -fshort-wchar option, 
        ac_cv_have_usable_wchar_option_v2,
        [AC_TRY_COMPILE([#include <stddef.h>
                         $configure_static_assert_macros],
                        [CONFIGURE_STATIC_ASSERT(sizeof(wchar_t) == 2);
                         CONFIGURE_STATIC_ASSERT((wchar_t)-1 > (wchar_t) 0)],
                        ac_cv_have_usable_wchar_option_v2="yes",
                        ac_cv_have_usable_wchar_option_v2="no")])

    if test "$ac_cv_have_usable_wchar_option_v2" = "yes"; then
        AC_DEFINE(HAVE_CPP_2BYTE_WCHAR_T)
        HAVE_CPP_2BYTE_WCHAR_T=1
    else    
        CXXFLAGS=$_SAVE_CXXFLAGS
    fi
    AC_LANG_RESTORE
fi

dnl Check for .hidden assembler directive and visibility attribute.
dnl Borrowed from glibc configure.in
dnl ===============================================================
if test "$GNU_CC"; then
  AC_CACHE_CHECK(for visibility(hidden) attribute,
                 ac_cv_visibility_hidden,
                 [cat > conftest.c <<EOF
                  int foo __attribute__ ((visibility ("hidden"))) = 1;
EOF
                  ac_cv_visibility_hidden=no
                  if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
                    if egrep '\.(hidden|private_extern).*foo' conftest.s >/dev/null; then
                      ac_cv_visibility_hidden=yes
                    fi
                  fi
                  rm -f conftest.[cs]
                 ])
  if test "$ac_cv_visibility_hidden" = "yes"; then
    AC_DEFINE(HAVE_VISIBILITY_HIDDEN_ATTRIBUTE)

    AC_CACHE_CHECK(for visibility(default) attribute,
                   ac_cv_visibility_default,
                   [cat > conftest.c <<EOF
                    int foo __attribute__ ((visibility ("default"))) = 1;
EOF
                    ac_cv_visibility_default=no
                    if ${CC-cc} -fvisibility=hidden -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
                      if ! egrep '\.(hidden|private_extern).*foo' conftest.s >/dev/null; then
                        ac_cv_visibility_default=yes
                      fi
                    fi
                    rm -f conftest.[cs]
                   ])
    if test "$ac_cv_visibility_default" = "yes"; then
      AC_DEFINE(HAVE_VISIBILITY_ATTRIBUTE)

      AC_CACHE_CHECK(for visibility pragma support,
                     ac_cv_visibility_pragma,
                     [cat > conftest.c <<EOF
#pragma GCC visibility push(hidden)
                      int foo_hidden = 1;
#pragma GCC visibility push(default)
                      int foo_default = 1;
EOF
                      ac_cv_visibility_pragma=no
                      if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
                        if egrep '\.(hidden|private_extern).*foo_hidden' conftest.s >/dev/null; then
                          if ! egrep '\.(hidden|private_extern).*foo_default' conftest.s > /dev/null; then
                            ac_cv_visibility_pragma=yes
                          fi
                        fi
                      fi
                      rm -f conftest.[cs]
                    ])
      if test "$ac_cv_visibility_pragma" = "yes"; then
        AC_CACHE_CHECK(For gcc visibility bug with class-level attributes (GCC bug 26905),
                       ac_cv_have_visibility_class_bug,
                       [cat > conftest.c <<EOF
#pragma GCC visibility push(hidden)
struct __attribute__ ((visibility ("default"))) TestStruct {
  static void Init();
};
__attribute__ ((visibility ("default"))) void TestFunc() {
  TestStruct::Init();
}
EOF
                       ac_cv_have_visibility_class_bug=no
                       if ! ${CXX-g++} ${CXXFLAGS} ${DSO_PIC_CFLAGS} ${DSO_LDOPTS} -S -o conftest.S conftest.c > /dev/null 2>&1 ; then
                         ac_cv_have_visibility_class_bug=yes
                       else
                         if test `egrep -c '@PLT|\\$stub' conftest.S` = 0; then
                           ac_cv_have_visibility_class_bug=yes
                         fi
                       fi
                       rm -rf conftest.{c,S}
                       ])

        AC_CACHE_CHECK(For x86_64 gcc visibility bug with builtins (GCC bug 20297),
                       ac_cv_have_visibility_builtin_bug,
                       [cat > conftest.c <<EOF
#pragma GCC visibility push(hidden)
#pragma GCC visibility push(default)
#include <string.h>
#pragma GCC visibility pop

__attribute__ ((visibility ("default"))) void Func() {
  char c[[100]];
  memset(c, 0, sizeof(c));
}
EOF
                       ac_cv_have_visibility_builtin_bug=no
                       if ! ${CC-cc} ${CFLAGS} ${DSO_PIC_CFLAGS} ${DSO_LDOPTS} -O2 -S -o conftest.S conftest.c > /dev/null 2>&1 ; then
                         ac_cv_have_visibility_builtin_bug=yes
                       else
                         if test `grep -c "@PLT" conftest.S` = 0; then
                           ac_cv_visibility_builtin_bug=yes
                         fi
                       fi
                       rm -f conftest.{c,S}
                       ])
        if test "$ac_cv_have_visibility_builtin_bug" = "no" -a \
                "$ac_cv_have_visibility_class_bug" = "no"; then
          VISIBILITY_FLAGS='-I$(DIST)/include/system_wrappers -include $(topsrcdir)/config/gcc_hidden.h'
          WRAP_SYSTEM_INCLUDES=1
        else
          VISIBILITY_FLAGS='-fvisibility=hidden'
        fi # have visibility pragma bug
      fi   # have visibility pragma
    fi     # have visibility(default) attribute
  fi       # have visibility(hidden) attribute
fi         # GNU_CC

AC_SUBST(WRAP_SYSTEM_INCLUDES)
AC_SUBST(VISIBILITY_FLAGS)

dnl Checks for header files.
dnl ========================================================
AC_HEADER_DIRENT
case "$target_os" in
freebsd*)
# for stuff like -lXshm
    CPPFLAGS="${CPPFLAGS} ${X_CFLAGS}"
    ;;
esac
AC_CHECK_HEADERS(sys/byteorder.h compat.h getopt.h)
AC_CHECK_HEADERS(sys/bitypes.h memory.h unistd.h)
AC_CHECK_HEADERS(gnu/libc-version.h nl_types.h)
AC_CHECK_HEADERS(malloc.h)
AC_CHECK_HEADERS(X11/XKBlib.h)

dnl These are all the places some variant of statfs can be hiding.
AC_CHECK_HEADERS(sys/statvfs.h sys/statfs.h sys/vfs.h sys/mount.h)

dnl Try for MMX support
dnl NB - later gcc versions require -mmmx for this header to be successfully
dnl included (or another option which implies it, such as -march=pentium-mmx)
AC_CHECK_HEADERS(mmintrin.h)

dnl Check whether the compiler supports the new-style C++ standard
dnl library headers (i.e. <new>) or needs the old "new.h"
AC_LANG_CPLUSPLUS
NEW_H=new.h
AC_CHECK_HEADER(new, [NEW_H=new])
AC_DEFINE_UNQUOTED(NEW_H, <$NEW_H>)
AC_LANG_C

AC_ARG_ENABLE(dtrace,
              build with dtrace support if available (default=no),
              [enable_dtrace="yes"],)
if test "x$enable_dtrace" = "xyes"; then
  AC_CHECK_HEADER(sys/sdt.h, HAVE_DTRACE=1)
  if test -n "$HAVE_DTRACE"; then
      AC_DEFINE(INCLUDE_MOZILLA_DTRACE)
  else
      AC_MSG_ERROR([dtrace enabled but sys/std.h not found]);
  fi
fi
AC_SUBST(HAVE_DTRACE)

case $target in
*-aix4.3*|*-aix5*)
	;;
*)
	AC_CHECK_HEADERS(sys/cdefs.h)
	;;
esac

dnl Checks for libraries.
dnl ========================================================
case $target in
*-hpux11.*)
	;;
*)
	AC_CHECK_LIB(c_r, gethostbyname_r)
	;;
esac

dnl We don't want to link with libdl even if it's present on OS X, since
dnl it's not used and not part of the default installation.
dnl The same goes for BeOS.
dnl We don't want to link against libm or libpthread on Darwin since
dnl they both are just symlinks to libSystem and explicitly linking
dnl against libSystem causes issues when debugging (see bug 299601).
case $target in
*-darwin*)
    ;;
*-beos*)
    ;;
*)
    AC_CHECK_LIB(m, atan)
    AC_CHECK_LIB(dl, dlopen,
    AC_CHECK_HEADER(dlfcn.h, 
        LIBS="-ldl $LIBS"
        AC_DEFINE(HAVE_LIBDL)))
    ;;
esac
if test ! "$GNU_CXX"; then

    case $target in
    *-aix*)
	AC_CHECK_LIB(C_r, demangle)
	;;
     *)
	AC_CHECK_LIB(C, demangle)
	;;
     esac
fi
AC_CHECK_LIB(socket, socket)

XLDFLAGS="$X_LIBS"
XLIBS="$X_EXTRA_LIBS"

dnl ========================================================
dnl Checks for X libraries.
dnl Ordering is important.
dnl Xt is dependent upon SM as of X11R6
dnl ========================================================
if test "$no_x" = "yes"; then
    AC_DEFINE(NO_X11)
else
    AC_DEFINE_UNQUOTED(FUNCPROTO,15)
	XLIBS="-lX11 $XLIBS"
	_SAVE_LDFLAGS="$LDFLAGS"
	LDFLAGS="$XLDFLAGS $LDFLAGS"
	AC_CHECK_LIB(X11, XDrawLines, [X11_LIBS="-lX11"],
		[MISSING_X="$MISSING_X -lX11"], $XLIBS)
	AC_CHECK_LIB(Xext, XextAddDisplay, [XEXT_LIBS="-lXext"],
		[MISSING_X="$MISSING_X -lXext"], $XLIBS)
   
     
	AC_CHECK_LIB(Xt, XtFree, [ XT_LIBS="-lXt"], [
        unset ac_cv_lib_Xt_XtFree
	    AC_CHECK_LIB(ICE, IceFlush, [XT_LIBS="-lICE $XT_LIBS"],, $XT_LIBS $XLIBS)
	    AC_CHECK_LIB(SM, SmcCloseConnection, [XT_LIBS="-lSM $XT_LIBS"],, $XT_LIBS $XLIBS) 
        AC_CHECK_LIB(Xt, XtFree, [ XT_LIBS="-lXt $XT_LIBS"],
		    [MISSING_X="$MISSING_X -lXt"], $X_PRE_LIBS $XT_LIBS $XLIBS)
        ])

    # AIX needs the motif library linked before libXt to prevent
    # crashes in plugins linked against Motif - Bug #98892
    case "${target_os}" in
    aix*)
        XT_LIBS="-lXm $XT_LIBS"
        ;;
    esac

    dnl ========================================================
    dnl = Check for XShm
    dnl ========================================================
    AC_CHECK_LIB(Xext, XShmCreateImage, _HAVE_XSHM_XEXT=1,,
        $XLIBS $XEXT_LIBS)
    AC_CHECK_HEADER(X11/extensions/XShm.h)
    if test "$ac_cv_header_X11_extensions_XShm_h" = "yes" &&
        test -n "$_HAVE_XSHM_XEXT"; then
        AC_DEFINE(HAVE_XSHM)
    fi

    dnl ========================================================
    dnl = Check for XIE
    dnl ========================================================
    AC_CHECK_LIB(XIE, XieFloGeometry, [MOZ_XIE_LIBS="-lXIE"],,
        $XLIBS $XEXT_LIBS)
    AC_CHECK_HEADER(X11/extensions/XIElib.h)

    if test "$MOZ_XIE_LIBS"; then
	dnl ====================================================
	dnl = If XIE is present and is desired, turn it on
	dnl ====================================================
	case $target in
	    *-hpux*)
		;;
	    *)
		HAVE_XIE=1
		;;
	esac
    fi

	LDFLAGS="$_SAVE_LDFLAGS"

    dnl ========================================================
    dnl = Check for freetype2 and its functionality
    dnl ========================================================
    AC_CHECK_FT2(6.1.0, [_HAVE_FREETYPE2=1], [_HAVE_FREETYPE2=])

    if test "$_HAVE_FREETYPE2"; then
    	_SAVE_LIBS="$LIBS"
    	_SAVE_CFLAGS="$CFLAGS"
    	LIBS="$LIBS $FT2_LIBS"
    	CFLAGS="$CFLAGS $FT2_CFLAGS"

        AC_CACHE_CHECK(for FT_Bitmap_Size.y_ppem,
            ac_cv_member_FT_Bitmap_Size_y_ppem,
            [AC_TRY_COMPILE([#include <ft2build.h>
                             #include FT_FREETYPE_H],
                            [FT_Bitmap_Size s;
                             if (sizeof s.y_ppem) return 0;
                             return 1],
                            ac_cv_member_FT_Bitmap_Size_y_ppem=yes,
                            ac_cv_member_FT_Bitmap_Size_y_ppem=no)])
        if test "$ac_cv_member_FT_Bitmap_Size_y_ppem" = yes; then
            HAVE_FT_BITMAP_SIZE_Y_PPEM=1
        else
            HAVE_FT_BITMAP_SIZE_Y_PPEM=0
        fi
        AC_DEFINE_UNQUOTED(HAVE_FT_BITMAP_SIZE_Y_PPEM,
                           $HAVE_FT_BITMAP_SIZE_Y_PPEM,
                           [FT_Bitmap_Size structure includes y_ppem field])

        AC_CHECK_FUNCS(FT_GlyphSlot_Embolden FT_Load_Sfnt_Table FT_Select_Size)

    	LIBS="$_SAVE_LIBS"
    	CFLAGS="$_SAVE_CFLAGS"
    fi

fi # $no_x

AC_SUBST(XCFLAGS)
AC_SUBST(XLDFLAGS)
AC_SUBST(XLIBS)
AC_SUBST(XT_LIBS)

dnl ========================================================
dnl = pthread support
dnl = Start by checking whether the system support pthreads
dnl ========================================================
case "$target_os" in
darwin*)
    USE_PTHREADS=1
    ;;
*)
    MOZ_CHECK_PTHREADS(pthreads,
        USE_PTHREADS=1 _PTHREAD_LDFLAGS="-lpthreads",
        MOZ_CHECK_PTHREADS(pthread,
            USE_PTHREADS=1 _PTHREAD_LDFLAGS="-lpthread",
            MOZ_CHECK_PTHREADS(c_r,
                USE_PTHREADS=1 _PTHREAD_LDFLAGS="-lc_r",
                MOZ_CHECK_PTHREADS(c,
                    USE_PTHREADS=1
                )
            )
        )
    )
    ;;
esac

dnl ========================================================
dnl Check the command line for --with-pthreads 
dnl ========================================================
MOZ_ARG_WITH_BOOL(pthreads,
[  --with-pthreads         Force use of system pthread library with NSPR ],
[ if test "$USE_PTHREADS"x = x; then
    AC_MSG_ERROR([ --with-pthreads specified for a system without pthread support ]);
fi],
    USE_PTHREADS=
    _PTHREAD_LDFLAGS=
)

dnl ========================================================
dnl Do the platform specific pthread hackery
dnl ========================================================
if test "$USE_PTHREADS"x != x
then
	dnl
	dnl See if -pthread is supported.
	dnl
	rm -f conftest*
	ac_cv_have_dash_pthread=no
	AC_MSG_CHECKING(whether ${CC-cc} accepts -pthread)
	echo 'int main() { return 0; }' | cat > conftest.c
	${CC-cc} -pthread -o conftest conftest.c > conftest.out 2>&1
	if test $? -eq 0; then
		if test -z "`egrep -i '(unrecognize|unknown)' conftest.out | grep pthread`" && test -z "`egrep -i '(error|incorrect)' conftest.out`" ; then
			ac_cv_have_dash_pthread=yes
	        case "$target_os" in
	        freebsd*)
# Freebsd doesn't use -pthread for compiles, it uses them for linking
                ;;
	        *)
			    CFLAGS="$CFLAGS -pthread"
			    CXXFLAGS="$CXXFLAGS -pthread"
                ;;
	        esac
		fi
	fi
	rm -f conftest*
    AC_MSG_RESULT($ac_cv_have_dash_pthread)

	dnl
	dnl See if -pthreads is supported.
	dnl
    ac_cv_have_dash_pthreads=no
    if test "$ac_cv_have_dash_pthread" = "no"; then
	    AC_MSG_CHECKING(whether ${CC-cc} accepts -pthreads)
    	echo 'int main() { return 0; }' | cat > conftest.c
	    ${CC-cc} -pthreads -o conftest conftest.c > conftest.out 2>&1
    	if test $? -eq 0; then
	    	if test -z "`egrep -i '(unrecognize|unknown)' conftest.out | grep pthreads`" && test -z "`egrep -i '(error|incorrect)' conftest.out`" ; then
			    ac_cv_have_dash_pthreads=yes
			    CFLAGS="$CFLAGS -pthreads"
			    CXXFLAGS="$CXXFLAGS -pthreads"
		    fi
	    fi
	    rm -f conftest*
    	AC_MSG_RESULT($ac_cv_have_dash_pthreads)
    fi

	case "$target" in
	    *-*-freebsd*)
			AC_DEFINE(_REENTRANT)
			AC_DEFINE(_THREAD_SAFE)
			dnl -pthread links in -lc_r, so don't specify it explicitly.
			if test "$ac_cv_have_dash_pthread" = "yes"; then
				_PTHREAD_LDFLAGS="-pthread"
			else
				_PTHREAD_LDFLAGS="-lc_r"
			fi
			;;

	    *-*-openbsd*|*-*-bsdi*)
			AC_DEFINE(_REENTRANT)
			AC_DEFINE(_THREAD_SAFE)
			dnl -pthread links in -lc_r, so don't specify it explicitly.
			if test "$ac_cv_have_dash_pthread" = "yes"; then
                _PTHREAD_LDFLAGS="-pthread"
			fi
			;;

	    *-*-linux*) 
			AC_DEFINE(_REENTRANT) 
			;;

	    *-*-nto*) 
			AC_DEFINE(_REENTRANT) 
			;;

	    *-aix4.3*|*-aix5*)
			AC_DEFINE(_REENTRANT) 
			;;

	    *-hpux11.*)
			AC_DEFINE(_REENTRANT) 
			;;

	    alpha*-*-osf*)
			AC_DEFINE(_REENTRANT)
			;;

	    *-*-solaris*) 
    			AC_DEFINE(_REENTRANT) 
			if test ! "$GNU_CC"; then
				CFLAGS="$CFLAGS -mt" 
				CXXFLAGS="$CXXFLAGS -mt" 
			fi
			;;
	esac
    LDFLAGS="${_PTHREAD_LDFLAGS} ${LDFLAGS}"
fi

dnl ========================================================
dnl Check for MacOS deployment target version
dnl ========================================================

MOZ_ARG_ENABLE_STRING(macos-target,
                      [  --enable-macos-target=VER (default=10.4)
                          Set the minimum MacOS version needed at runtime],
                      [_MACOSX_DEPLOYMENT_TARGET=$enableval])

case "$target" in
*-darwin*)
    if test -n "$_MACOSX_DEPLOYMENT_TARGET" ; then
        dnl Use the specified value
        export MACOSX_DEPLOYMENT_TARGET=$_MACOSX_DEPLOYMENT_TARGET
    elif test -z "$MACOSX_DEPLOYMENT_TARGET" ; then
        dnl No value specified on the command line or in the environment,
        dnl use the lesser of the application's minimum or the architecture's
        dnl minimum.
        export MACOSX_DEPLOYMENT_TARGET=10.4
    fi
    ;;
esac

AC_SUBST(MACOSX_DEPLOYMENT_TARGET)

dnl ========================================================
dnl See if mmap sees writes
dnl For cross compiling, just define it as no, which is a safe default
dnl ========================================================
AC_MSG_CHECKING(whether mmap() sees write()s)

changequote(,)
mmap_test_prog='
    #include <stdlib.h>
    #include <unistd.h>
    #include <sys/mman.h>
    #include <sys/types.h>
    #include <sys/stat.h>
    #include <fcntl.h>

    char fname[] = "conftest.file";
    char zbuff[1024]; /* Fractional page is probably worst case */

    int main() {
	char *map;
	int fd;
	int i;
	unlink(fname);
	fd = open(fname, O_RDWR | O_CREAT, 0660);
	if(fd<0) return 1;
	unlink(fname);
	write(fd, zbuff, sizeof(zbuff));
	lseek(fd, 0, SEEK_SET);
	map = (char*)mmap(0, sizeof(zbuff), PROT_READ, MAP_SHARED, fd, 0);
	if(map==(char*)-1) return 2;
	for(i=0; fname[i]; i++) {
	    int rc = write(fd, &fname[i], 1);
	    if(map[i]!=fname[i]) return 4;
	}
	return 0;
    }
'
changequote([,])

AC_TRY_RUN($mmap_test_prog , result="yes", result="no", result="yes")

AC_MSG_RESULT("$result")

if test "$result" = "no"; then
    AC_DEFINE(MMAP_MISSES_WRITES)
fi


dnl Checks for library functions.
dnl ========================================================
AC_PROG_GCC_TRADITIONAL
AC_FUNC_MEMCMP
AC_CHECK_FUNCS(random strerror lchown fchmod snprintf statvfs memmove rint stat64 lstat64)
AC_CHECK_FUNCS(flockfile getpagesize)

dnl localtime_r and strtok_r are only present on MacOS version 10.2 and higher
if test -z "$MACOS_DEPLOYMENT_TARGET" || test "$MACOS_DEPLOYMENT_TARGET" -ge "100200"; then
  AC_CHECK_FUNCS(localtime_r strtok_r)
fi

dnl check for wcrtomb/mbrtowc
dnl =======================================================================
if test -z "$MACOS_DEPLOYMENT_TARGET" || test "$MACOS_DEPLOYMENT_TARGET" -ge "100300"; then
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_CACHE_CHECK(for wcrtomb,
    ac_cv_have_wcrtomb,
    [AC_TRY_LINK([#include <wchar.h>],
                 [mbstate_t ps={0};wcrtomb(0,'f',&ps);],
                 ac_cv_have_wcrtomb="yes",
                 ac_cv_have_wcrtomb="no")])
if test "$ac_cv_have_wcrtomb" = "yes"; then
    AC_DEFINE(HAVE_WCRTOMB)
fi
AC_CACHE_CHECK(for mbrtowc,
    ac_cv_have_mbrtowc,
    [AC_TRY_LINK([#include <wchar.h>],
                 [mbstate_t ps={0};mbrtowc(0,0,0,&ps);],
                 ac_cv_have_mbrtowc="yes",
                 ac_cv_have_mbrtowc="no")])
if test "$ac_cv_have_mbrtowc" = "yes"; then
    AC_DEFINE(HAVE_MBRTOWC)
fi
AC_LANG_RESTORE
fi

AC_CACHE_CHECK(
    [for res_ninit()],
    ac_cv_func_res_ninit,
    [AC_TRY_LINK([
        #ifdef linux
        #define _BSD_SOURCE 1
        #endif
        #include <resolv.h>
        ],
        [int foo = res_ninit(&_res);],
        [ac_cv_func_res_ninit=yes],
        [ac_cv_func_res_ninit=no])
    ])

if test "$ac_cv_func_res_ninit" = "yes"; then
    AC_DEFINE(HAVE_RES_NINIT)
dnl must add the link line we do something as foolish as this... dougt
dnl else
dnl    AC_CHECK_LIB(bind, res_ninit, AC_DEFINE(HAVE_RES_NINIT),
dnl        AC_CHECK_LIB(resolv, res_ninit, AC_DEFINE(HAVE_RES_NINIT)))
fi

AC_LANG_CPLUSPLUS
AC_CACHE_CHECK(
    [for gnu_get_libc_version()],
    ac_cv_func_gnu_get_libc_version,
    [AC_TRY_LINK([
        #ifdef HAVE_GNU_LIBC_VERSION_H
        #include <gnu/libc-version.h>
        #endif
        ],
        [const char *glibc_version = gnu_get_libc_version();],
        [ac_cv_func_gnu_get_libc_version=yes],
        [ac_cv_func_gnu_get_libc_version=no] 
        )]
    )

if test "$ac_cv_func_gnu_get_libc_version" = "yes"; then
    AC_DEFINE(HAVE_GNU_GET_LIBC_VERSION)
fi

case $target_os in
    os2*|msvc*|mks*|cygwin*|mingw*|darwin*|wince*|beos*)
        ;;
    *)
    
AC_CHECK_LIB(c, iconv, [_ICONV_LIBS="$_ICONV_LIBS"],
    AC_CHECK_LIB(iconv, iconv, [_ICONV_LIBS="$_ICONV_LIBS -liconv"],
        AC_CHECK_LIB(iconv, libiconv, [_ICONV_LIBS="$_ICONV_LIBS -liconv"])))
_SAVE_LIBS=$LIBS
LIBS="$LIBS $_ICONV_LIBS"
AC_CACHE_CHECK(
    [for iconv()],
    ac_cv_func_iconv,
    [AC_TRY_LINK([
        #include <stdlib.h>
        #include <iconv.h>
        ],
        [
            iconv_t h = iconv_open("", "");
            iconv(h, NULL, NULL, NULL, NULL);
            iconv_close(h);
        ],
        [ac_cv_func_iconv=yes],
        [ac_cv_func_iconv=no] 
        )]
    )
if test "$ac_cv_func_iconv" = "yes"; then
    AC_DEFINE(HAVE_ICONV)
    DYNAMIC_XPCOM_LIBS="$DYNAMIC_XPCOM_LIBS $_ICONV_LIBS"
    LIBXUL_LIBS="$LIBXUL_LIBS $_ICONV_LIBS"
    LIBICONV="$_ICONV_LIBS"
    AC_CACHE_CHECK(
        [for iconv() with const input],
        ac_cv_func_const_iconv,
        [AC_TRY_COMPILE([
            #include <stdlib.h>
            #include <iconv.h>
            ],
            [
                const char *input = "testing";
                iconv_t h = iconv_open("", "");
                iconv(h, &input, NULL, NULL, NULL);
                iconv_close(h);
            ],
            [ac_cv_func_const_iconv=yes],
            [ac_cv_func_const_iconv=no] 
            )]
        )
    if test "$ac_cv_func_const_iconv" = "yes"; then
        AC_DEFINE(HAVE_ICONV_WITH_CONST_INPUT)
    fi
fi
LIBS=$_SAVE_LIBS

    ;;
esac

AM_LANGINFO_CODESET

AC_LANG_C

dnl **********************
dnl *** va_copy checks ***
dnl **********************
dnl we currently check for all three va_copy possibilities, so we get
dnl all results in config.log for bug reports.
AC_MSG_CHECKING(for an implementation of va_copy())
AC_CACHE_VAL(ac_cv_va_copy,[
    AC_TRY_RUN([
        #include <stdarg.h>
        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; }],
        ac_cv_va_copy=yes,
        ac_cv_va_copy=no,
        ac_cv_va_copy=no
    )
])
AC_MSG_RESULT($ac_cv_va_copy)
AC_MSG_CHECKING(for an implementation of __va_copy())
AC_CACHE_VAL(ac_cv___va_copy,[
    AC_TRY_RUN([
        #include <stdarg.h>
        void f (int i, ...) {
            va_list args1, args2;
            va_start (args1, i);
            __va_copy (args2, args1);
            if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
                exit (1);
            va_end (args1); va_end (args2);
        }
        int main() { f (0, 42); return 0; }],
        ac_cv___va_copy=yes,
        ac_cv___va_copy=no,
        ac_cv___va_copy=no
    )
])
AC_MSG_RESULT($ac_cv___va_copy)
AC_MSG_CHECKING(whether va_lists can be copied by value)
AC_CACHE_VAL(ac_cv_va_val_copy,[
    AC_TRY_RUN([
        #include <stdarg.h>
        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; }],
        ac_cv_va_val_copy=yes,
        ac_cv_va_val_copy=no,
        ac_cv_va_val_copy=yes
    )
])
if test "x$ac_cv_va_copy" = "xyes"; then
    AC_DEFINE(VA_COPY, va_copy)
    AC_DEFINE(HAVE_VA_COPY)
elif test "x$ac_cv___va_copy" = "xyes"; then
    AC_DEFINE(VA_COPY, __va_copy)
    AC_DEFINE(HAVE_VA_COPY)
fi

if test "x$ac_cv_va_val_copy" = "xno"; then
   AC_DEFINE(HAVE_VA_LIST_AS_ARRAY)
fi
AC_MSG_RESULT($ac_cv_va_val_copy)

dnl Check for dll-challenged libc's.
dnl This check is apparently only needed for Linux.
case "$target" in
	*-linux*)
	    dnl ===================================================================
	    _curdir=`pwd`
	    export _curdir
	    rm -rf conftest* _conftest
	    mkdir _conftest
	    cat >> conftest.C <<\EOF
#include <stdio.h>
#include <link.h>
#include <dlfcn.h>
#ifdef _dl_loaded
void __dump_link_map(void) {
  struct link_map *map = _dl_loaded;
  while (NULL != map) {printf("0x%08x %s\n", map->l_addr, map->l_name); map = map->l_next;}
}
int main() {
  dlopen("./conftest1.so",RTLD_LAZY);
  dlopen("./../_conftest/conftest1.so",RTLD_LAZY);
  dlopen("CURDIR/_conftest/conftest1.so",RTLD_LAZY);
  dlopen("CURDIR/_conftest/../_conftest/conftest1.so",RTLD_LAZY);
  __dump_link_map();
}
#else
/* _dl_loaded isn't defined, so this should be either a libc5 (glibc1) system, or a glibc2 system that doesn't have the multiple load bug (i.e., RH6.0).*/
int main() { printf("./conftest1.so\n"); }
#endif
EOF

	    $PERL -p -i -e "s/CURDIR/\$ENV{_curdir}/g;" conftest.C

	    cat >> conftest1.C <<\EOF
#include <stdio.h>
void foo(void) {printf("foo in dll called\n");}
EOF
	    ${CXX-g++} -fPIC -c -g conftest1.C
	    ${CXX-g++} -shared -Wl,-h -Wl,conftest1.so -o conftest1.so conftest1.o
	    ${CXX-g++} -g conftest.C -o conftest -ldl
	    cp -f conftest1.so conftest _conftest
	    cd _conftest
	    if test `./conftest | grep conftest1.so | wc -l` -gt 1
	    then
		echo
		echo "*** Your libc has a bug that can result in loading the same dynamic"
		echo "*** library multiple times.  This bug is known to be fixed in glibc-2.0.7-32"
		echo "*** or later.  However, if you choose not to upgrade, the only effect"
		echo "*** will be excessive memory usage at runtime."
		echo
	    fi
	    cd ${_curdir}
	    rm -rf conftest* _conftest
	    dnl ===================================================================
	    ;;
esac

dnl ===================================================================
dnl ========================================================
dnl By default, turn rtti and exceptions off on g++/egcs
dnl ========================================================
if test "$GNU_CXX"; then

  AC_MSG_CHECKING(for C++ exceptions flag)

  dnl They changed -f[no-]handle-exceptions to -f[no-]exceptions in g++ 2.8
  AC_CACHE_VAL(ac_cv_cxx_exceptions_flags,
  [echo "int main() { return 0; }" | cat > conftest.C

  ${CXX-g++} ${CXXFLAGS} -c -fno-handle-exceptions conftest.C > conftest.out 2>&1

  if egrep "warning.*renamed" conftest.out >/dev/null; then
    ac_cv_cxx_exceptions_flags=${_COMPILER_PREFIX}-fno-exceptions
  else
    ac_cv_cxx_exceptions_flags=${_COMPILER_PREFIX}-fno-handle-exceptions
  fi

  rm -f conftest*])

  AC_MSG_RESULT($ac_cv_cxx_exceptions_flags)
  _MOZ_EXCEPTIONS_FLAGS_OFF=$ac_cv_cxx_exceptions_flags
  _MOZ_EXCEPTIONS_FLAGS_ON=`echo $ac_cv_cxx_exceptions_flags | sed 's|no-||'`
fi

dnl ========================================================
dnl Put your C++ language/feature checks below
dnl ========================================================
AC_LANG_CPLUSPLUS

HAVE_GCC3_ABI=
if test "$GNU_CC"; then
  AC_CACHE_CHECK(for gcc 3.0 ABI,
      ac_cv_gcc_three_abi,
      [AC_TRY_COMPILE([],
                      [
#if defined(__GXX_ABI_VERSION) && __GXX_ABI_VERSION >= 100 /* G++ V3 ABI */
  return 0;
#else
#error Not gcc3.
#endif
                      ],
                      ac_cv_gcc_three_abi="yes",
                      ac_cv_gcc_three_abi="no")])
  if test "$ac_cv_gcc_three_abi" = "yes"; then
      TARGET_COMPILER_ABI="${TARGET_COMPILER_ABI-gcc3}"
      HAVE_GCC3_ABI=1
  else
      TARGET_COMPILER_ABI="${TARGET_COMPILER_ABI-gcc2}"
  fi
fi
AC_SUBST(HAVE_GCC3_ABI)


AC_CACHE_CHECK(for C++ \"explicit\" keyword,
               ac_cv_cpp_explicit,
               [AC_TRY_COMPILE(class X {
                               public: explicit X(int i) : i_(i) {}
                               private: int i_;
                               };,
                               X x(3);,
                               ac_cv_cpp_explicit=yes,
                               ac_cv_cpp_explicit=no)])
if test "$ac_cv_cpp_explicit" = yes ; then
   AC_DEFINE(HAVE_CPP_EXPLICIT)
fi

AC_CACHE_CHECK(for C++ \"typename\" keyword,
               ac_cv_cpp_typename,
               [AC_TRY_COMPILE(class param {
                               public:
                                   typedef unsigned long num_type;
                               };

                               template <class T> class tplt {
                               public:
                                   typedef typename T::num_type t_num_type;
                                   t_num_type foo(typename T::num_type num) {
                                       return num;
                                   }
                               };,
                               tplt<param> A;
                               A.foo(0);,
                               ac_cv_cpp_typename=yes,
                               ac_cv_cpp_typename=no)])
if test "$ac_cv_cpp_typename" = yes ; then
   AC_DEFINE(HAVE_CPP_TYPENAME)
fi

dnl Check for support of modern template specialization syntax
dnl Test code and requirement from scc@netscape.com.
dnl Autoconf cut-and-paste job by waterson@netscape.com
AC_CACHE_CHECK(for modern C++ template specialization syntax support,
               ac_cv_cpp_modern_specialize_template_syntax,
               [AC_TRY_COMPILE(template <class T> struct X { int a; };
                               class Y {};
                               template <> struct X<Y> { double a; };,
                               X<int> int_x;
                               X<Y> y_x;,
                               ac_cv_cpp_modern_specialize_template_syntax=yes,
                               ac_cv_cpp_modern_specialize_template_syntax=no)])
if test "$ac_cv_cpp_modern_specialize_template_syntax" = yes ; then
  AC_DEFINE(HAVE_CPP_MODERN_SPECIALIZE_TEMPLATE_SYNTAX)
fi


dnl Some compilers support only full specialization, and some don't.
AC_CACHE_CHECK(whether partial template specialization works,
               ac_cv_cpp_partial_specialization,
               [AC_TRY_COMPILE(template <class T> class Foo {};
                               template <class T> class Foo<T*> {};,
                               return 0;,
                               ac_cv_cpp_partial_specialization=yes,
                               ac_cv_cpp_partial_specialization=no)])
if test "$ac_cv_cpp_partial_specialization" = yes ; then
  AC_DEFINE(HAVE_CPP_PARTIAL_SPECIALIZATION)
fi

dnl Some compilers have limited support for operators with templates;
dnl specifically, it is necessary to define derived operators when a base
dnl class's operator declaration should suffice.
AC_CACHE_CHECK(whether operators must be re-defined for templates derived from templates,
               ac_cv_need_derived_template_operators,
               [AC_TRY_COMPILE([template <class T> class Base { };
                                template <class T>
                                Base<T> operator+(const Base<T>& lhs, const Base<T>& rhs) { return lhs; }
                                template <class T> class Derived : public Base<T> { };],
                               [Derived<char> a, b;
                                Base<char> c = a + b;
                                return 0;],
                               ac_cv_need_derived_template_operators=no,
                               ac_cv_need_derived_template_operators=yes)])
if test "$ac_cv_need_derived_template_operators" = yes ; then
  AC_DEFINE(NEED_CPP_DERIVED_TEMPLATE_OPERATORS)
fi


dnl Some compilers have trouble detecting that a template class
dnl that derives from another template is actually an instance
dnl of the base class. This test checks for that.
AC_CACHE_CHECK(whether we need to cast a derived template to pass as its base class,
               ac_cv_need_cpp_template_cast_to_base,
               [AC_TRY_COMPILE([template <class T> class Base { };
                                template <class T> class Derived : public Base<T> { };
                                template <class T> int foo(const Base<T>&) { return 0; }],
                               [Derived<char> bar; return foo(bar);],
                               ac_cv_need_cpp_template_cast_to_base=no,
                               ac_cv_need_cpp_template_cast_to_base=yes)])
if test "$ac_cv_need_cpp_template_cast_to_base" = yes ; then
  AC_DEFINE(NEED_CPP_TEMPLATE_CAST_TO_BASE)
fi

dnl Some compilers have trouble resolving the ambiguity between two
dnl functions whose arguments differ only by cv-qualifications.
AC_CACHE_CHECK(whether the compiler can resolve const ambiguities for templates,
               ac_cv_can_resolve_const_ambiguity,
               [AC_TRY_COMPILE([
                                template <class T> class ptrClass {
                                  public: T* ptr;
                                };

                                template <class T> T* a(ptrClass<T> *arg) {
                                  return arg->ptr;
                                }

                                template <class T>
                                const T* a(const ptrClass<T> *arg) {
                                  return arg->ptr;
                                }
                               ],
                               [ ptrClass<int> i;
                                 a(&i); ],
                               ac_cv_can_resolve_const_ambiguity=yes,
                               ac_cv_can_resolve_const_ambiguity=no)])
if test "$ac_cv_can_resolve_const_ambiguity" = no ; then
  AC_DEFINE(CANT_RESOLVE_CPP_CONST_AMBIGUITY)
fi

dnl
dnl We don't do exceptions on unix.  The only reason this used to be here
dnl is that mozilla/xpcom/tests/TestCOMPtr.cpp has a test which uses 
dnl exceptions.  But, we turn exceptions off by default and this test breaks.
dnl So im commenting this out until someone writes some artificial 
dnl intelligence to detect not only if the compiler has exceptions, but if 
dnl they are enabled as well.
dnl 
dnl AC_CACHE_CHECK(for C++ \"exceptions\",
dnl                ac_cv_cpp_exceptions,
dnl                [AC_TRY_COMPILE(class X { public: X() {} };
dnl                                static void F() { throw X(); },
dnl                                try { F(); } catch(X & e) { },
dnl                                ac_cv_cpp_exceptions=yes,
dnl                                ac_cv_cpp_exceptions=no)])
dnl if test $ac_cv_cpp_exceptions = yes ; then
dnl    AC_DEFINE(HAVE_CPP_EXCEPTIONS)
dnl fi

dnl Some compilers have marginal |using| support; for example, gcc-2.7.2.3
dnl supports it well enough to allow us to use it to change access, but not
dnl to resolve ambiguity. The next two tests determine how well the |using|
dnl keyword is supported.
dnl
dnl Check to see if we can change access with |using|.  Test both a
dnl legal and an illegal example.
AC_CACHE_CHECK(whether the C++ \"using\" keyword can change access,
               ac_cv_cpp_access_changing_using2,
               [AC_TRY_COMPILE(
                   class A { protected: int foo() { return 0; } };
                   class B : public A { public: using A::foo; };,
                   B b; return b.foo();,
                   [AC_TRY_COMPILE(
                       class A { public: int foo() { return 1; } };
                       class B : public A { private: using A::foo; };,
                       B b; return b.foo();,
                       ac_cv_cpp_access_changing_using2=no,
                       ac_cv_cpp_access_changing_using2=yes)],
                   ac_cv_cpp_access_changing_using2=no)])
if test "$ac_cv_cpp_access_changing_using2" = yes ; then
   AC_DEFINE(HAVE_CPP_ACCESS_CHANGING_USING)
fi

dnl Check to see if we can resolve ambiguity with |using|.
AC_CACHE_CHECK(whether the C++ \"using\" keyword resolves ambiguity,
               ac_cv_cpp_ambiguity_resolving_using,
               [AC_TRY_COMPILE(class X { 
                                 public: int go(const X&) {return 3;}
                                         int jo(const X&) {return 3;}
                               };
                               class Y : public X {
                                 public:  int go(int) {return 2;}
                                          int jo(int) {return 2;}
                                          using X::jo;
                                 private: using X::go;
                               };,
                               X x; Y y; y.jo(x);,
                               ac_cv_cpp_ambiguity_resolving_using=yes,
                               ac_cv_cpp_ambiguity_resolving_using=no)])
if test "$ac_cv_cpp_ambiguity_resolving_using" = yes ; then
   AC_DEFINE(HAVE_CPP_AMBIGUITY_RESOLVING_USING)
fi

dnl Check to see if the |std| namespace is supported. If so, we'll want
dnl to qualify any standard library calls with "std::" to ensure that
dnl those functions can be resolved.
AC_CACHE_CHECK(for \"std::\" namespace,
               ac_cv_cpp_namespace_std,
               [AC_TRY_COMPILE([#include <algorithm>],
                               [return std::min(0, 1);],
                               ac_cv_cpp_namespace_std=yes,
                               ac_cv_cpp_namespace_std=no)])
if test "$ac_cv_cpp_namespace_std" = yes ; then
   AC_DEFINE(HAVE_CPP_NAMESPACE_STD)
fi

dnl Older compilers are overly ambitious with respect to using the standard
dnl template library's |operator!=()| when |operator==()| is defined. In
dnl which case, defining |operator!=()| in addition to |operator==()| causes
dnl ambiguity at compile-time. This test checks for that case.
AC_CACHE_CHECK(whether standard template operator!=() is ambiguous,
               ac_cv_cpp_unambiguous_std_notequal,
               [AC_TRY_COMPILE([#include <algorithm>
                                struct T1 {};
                                int operator==(const T1&, const T1&) { return 0; }
                                int operator!=(const T1&, const T1&) { return 0; }],
                               [T1 a,b; return a != b;],
                               ac_cv_cpp_unambiguous_std_notequal=unambiguous,
                               ac_cv_cpp_unambiguous_std_notequal=ambiguous)])
if test "$ac_cv_cpp_unambiguous_std_notequal" = unambiguous ; then
  AC_DEFINE(HAVE_CPP_UNAMBIGUOUS_STD_NOTEQUAL)
fi


AC_CACHE_CHECK(for C++ reinterpret_cast,
               ac_cv_cpp_reinterpret_cast,
               [AC_TRY_COMPILE(struct X { int i; };
                               struct Y { int i; };,
                               X x; X*const z = &x;Y*y = reinterpret_cast<Y*>(z);,
                               ac_cv_cpp_reinterpret_cast=yes,
                               ac_cv_cpp_reinterpret_cast=no)])
if test "$ac_cv_cpp_reinterpret_cast" = yes ; then
   AC_DEFINE(HAVE_CPP_NEW_CASTS)
fi

dnl See if a dynamic_cast to void* gives the most derived object.
AC_CACHE_CHECK(for C++ dynamic_cast to void*,
               ac_cv_cpp_dynamic_cast_void_ptr,
               [AC_TRY_RUN([class X { int i; public: virtual ~X() { } };
                            class Y { int j; public: virtual ~Y() { } };
                            class Z : public X, public Y { int k; };

                            int main() {
                                 Z mdo;
                                 X *subx = (X*)&mdo;
                                 Y *suby = (Y*)&mdo;
                                 return !((((void*)&mdo != (void*)subx) &&
                                           ((void*)&mdo == dynamic_cast<void*>(subx))) ||
                                          (((void*)&mdo != (void*)suby) &&
                                           ((void*)&mdo == dynamic_cast<void*>(suby))));
                            }],
                           ac_cv_cpp_dynamic_cast_void_ptr=yes,
                           ac_cv_cpp_dynamic_cast_void_ptr=no,
                           ac_cv_cpp_dynamic_cast_void_ptr=no)])
if test "$ac_cv_cpp_dynamic_cast_void_ptr" = yes ; then
   AC_DEFINE(HAVE_CPP_DYNAMIC_CAST_TO_VOID_PTR)
fi


dnl note that this one is reversed - if the test fails, then
dnl we require implementations of unused virtual methods. Which
dnl really blows because it means we'll have useless vtable
dnl bloat.
AC_CACHE_CHECK(whether C++ requires implementation of unused virtual methods,
               ac_cv_cpp_unused_required,
               [AC_TRY_LINK(class X {private: virtual void never_called();};,
                               X x;,
                               ac_cv_cpp_unused_required=no,
                               ac_cv_cpp_unused_required=yes)])
if test "$ac_cv_cpp_unused_required" = yes ; then
   AC_DEFINE(NEED_CPP_UNUSED_IMPLEMENTATIONS)
fi


dnl Some compilers have trouble comparing a constant reference to a templatized
dnl class to zero, and require an explicit operator==() to be defined that takes
dnl an int. This test separates the strong from the weak.

AC_CACHE_CHECK(for trouble comparing to zero near std::operator!=(),
               ac_cv_trouble_comparing_to_zero,
               [AC_TRY_COMPILE([#include <algorithm>
                                template <class T> class Foo {};
                                class T2;
                                template <class T> int operator==(const T2*, const T&) { return 0; }
                                template <class T> int operator!=(const T2*, const T&) { return 0; }],
                               [Foo<int> f; return (0 != f);],
                               ac_cv_trouble_comparing_to_zero=no,
                               ac_cv_trouble_comparing_to_zero=yes)])
if test "$ac_cv_trouble_comparing_to_zero" = yes ; then
  AC_DEFINE(HAVE_CPP_TROUBLE_COMPARING_TO_ZERO)
fi



dnl End of C++ language/feature checks
AC_LANG_C

dnl ========================================================
dnl =  Internationalization checks
dnl ========================================================
dnl
dnl Internationalization and Locale support is different
dnl on various UNIX platforms.  Checks for specific i18n
dnl features go here.

dnl check for LC_MESSAGES
AC_CACHE_CHECK(for LC_MESSAGES,
		ac_cv_i18n_lc_messages,
		[AC_TRY_COMPILE([#include <locale.h>],
				[int category = LC_MESSAGES;],
				ac_cv_i18n_lc_messages=yes,
				ac_cv_i18n_lc_messages=no)])
if test "$ac_cv_i18n_lc_messages" = yes; then
   AC_DEFINE(HAVE_I18N_LC_MESSAGES)
fi 	

fi # SKIP_COMPILER_CHECKS

TARGET_XPCOM_ABI=
if test -n "${CPU_ARCH}" -a -n "${TARGET_COMPILER_ABI}"; then
    TARGET_XPCOM_ABI="${CPU_ARCH}-${TARGET_COMPILER_ABI}"
fi

dnl Mozilla specific options
dnl ========================================================
dnl The macros used for command line options
dnl are defined in build/autoconf/altoptions.m4.


dnl ========================================================
dnl =
dnl = Check for external package dependencies
dnl =
dnl ========================================================
MOZ_ARG_HEADER(External Packages)

MOZ_ENABLE_LIBXUL=

MOZ_ARG_WITH_STRING(libxul-sdk,
[  --with-libxul-sdk=PFX   Use the libXUL SDK at <PFX>],
  LIBXUL_SDK_DIR=$withval)

if test "$LIBXUL_SDK_DIR" = "yes"; then
    AC_MSG_ERROR([--with-libxul-sdk must specify a path])
elif test -n "$LIBXUL_SDK_DIR" -a "$LIBXUL_SDK_DIR" != "no"; then
    LIBXUL_SDK=`cd "$LIBXUL_SDK_DIR" && pwd`

    if test ! -f "$LIBXUL_SDK/sdk/include/xpcom-config.h"; then
        AC_MSG_ERROR([$LIBXUL_SDK/sdk/include/xpcom-config.h doesn't exist])
    fi

    MOZ_ENABLE_LIBXUL=1
fi
AC_SUBST(LIBXUL_SDK)

dnl ========================================================
dnl = If NSPR was not detected in the system, 
dnl = use the one in the source tree (mozilla/nsprpub)
dnl ========================================================
MOZ_ARG_WITH_BOOL(system-nspr,
[  --with-system-nspr      Use system installed NSPR],
    _USE_SYSTEM_NSPR=1 )

if test -n "$_USE_SYSTEM_NSPR"; then
    AM_PATH_NSPR(4.0.0, [MOZ_NATIVE_NSPR=1], [MOZ_NATIVE_NSPR=])
fi

if test -n "$MOZ_NATIVE_NSPR"; then
    _SAVE_CFLAGS=$CFLAGS
    CFLAGS="$CFLAGS $NSPR_CFLAGS"
    AC_TRY_COMPILE([#include "prlog.h"],
                [#ifndef PR_STATIC_ASSERT
                 #error PR_STATIC_ASSERT not defined
                 #endif],
                [MOZ_NATIVE_NSPR=1],
                AC_MSG_ERROR([system NSPR does not support PR_STATIC_ASSERT]))
    CFLAGS=$_SAVE_CFLAGS
else
    NSPR_CFLAGS='`$(DEPTH)/nsprpub/config/nspr-config --prefix=$(LIBXUL_DIST) --includedir=$(LIBXUL_DIST)/include/nspr --cflags`'
    # explicitly set libs for Visual Age C++ for OS/2
    if test "$OS_ARCH" = "OS2" -a "$VACPP" = "yes"; then
        NSPR_LIBS='$(LIBXUL_DIST)/lib/nspr'$NSPR_VERSION'.lib $(LIBXUL_DIST)/lib/plc'$NSPR_VERSION'.lib $(LIBXUL_DIST)/lib/plds'$NSPR_VERSION'.lib '$_PTHREAD_LDFLAGS''
    elif test "$OS_ARCH" = "WINCE"; then
        NSPR_CFLAGS='-I$(LIBXUL_DIST)/include/nspr'
        NSPR_LIBS='$(LIBXUL_DIST)/lib/nspr'$NSPR_VERSION'.lib $(LIBXUL_DIST)/lib/plc'$NSPR_VERSION'.lib $(LIBXUL_DIST)/lib/plds'$NSPR_VERSION'.lib '
    elif test "$OS_ARCH" = "WINNT"; then
        NSPR_CFLAGS='-I$(LIBXUL_DIST)/include/nspr'
        if test -n "$GNU_CC"; then
            NSPR_LIBS="-L\$(LIBXUL_DIST)/lib -lnspr$NSPR_VERSION -lplc$NSPR_VERSION -lplds$NSPR_VERSION"
        else
            NSPR_LIBS='$(LIBXUL_DIST)/lib/nspr'$NSPR_VERSION'.lib $(LIBXUL_DIST)/lib/plc'$NSPR_VERSION'.lib $(LIBXUL_DIST)/lib/plds'$NSPR_VERSION'.lib '
        fi
    else
        NSPR_LIBS='`$(DEPTH)/nsprpub/config/nspr-config --prefix=$(LIBXUL_DIST) --libdir=$(LIBXUL_DIST)/lib --libs`'
    fi
fi

dnl ========================================================
dnl = If NSS was not detected in the system, 
dnl = use the one in the source tree (mozilla/security/nss)
dnl ========================================================

MOZ_ARG_WITH_BOOL(system-nss,
[  --with-system-nss      Use system installed NSS],
    _USE_SYSTEM_NSS=1 )

if test -n "$_USE_SYSTEM_NSS"; then
    AM_PATH_NSS(3.0.0, [MOZ_NATIVE_NSS=1], [MOZ_NATIVE_NSS=])
fi

if test -n "$MOZ_NATIVE_NSS"; then
   NSS_LIBS="$NSS_LIBS -lcrmf"
else
   NSS_CFLAGS='-I$(LIBXUL_DIST)/include/nss'
   NSS_DEP_LIBS='\\\
        $(LIBXUL_DIST)/lib/$(LIB_PREFIX)crmf.$(LIB_SUFFIX) \\\
        $(LIBXUL_DIST)/lib/$(DLL_PREFIX)smime'$NSS_VERSION'$(DLL_SUFFIX) \\\
        $(LIBXUL_DIST)/lib/$(DLL_PREFIX)ssl'$NSS_VERSION'$(DLL_SUFFIX) \\\
        $(LIBXUL_DIST)/lib/$(DLL_PREFIX)nss'$NSS_VERSION'$(DLL_SUFFIX) \\\
        $(LIBXUL_DIST)/lib/$(DLL_PREFIX)softokn'$NSS_VERSION'$(DLL_SUFFIX)'

   if test -z "$GNU_CC" && test "$OS_ARCH" = "WINNT" -o "$OS_ARCH" = "WINCE" -o "$OS_ARCH" = "OS2"; then
       NSS_LIBS='\\\
        $(LIBXUL_DIST)/lib/$(LIB_PREFIX)crmf.$(LIB_SUFFIX) \\\
        $(LIBXUL_DIST)/lib/$(LIB_PREFIX)smime'$NSS_VERSION'.$(IMPORT_LIB_SUFFIX) \\\
        $(LIBXUL_DIST)/lib/$(LIB_PREFIX)ssl'$NSS_VERSION'.$(IMPORT_LIB_SUFFIX) \\\
        $(LIBXUL_DIST)/lib/$(LIB_PREFIX)nss'$NSS_VERSION'.$(IMPORT_LIB_SUFFIX) \\\
        $(LIBXUL_DIST)/lib/$(LIB_PREFIX)softokn'$NSS_VERSION'.$(IMPORT_LIB_SUFFIX)'
   else
       NSS_LIBS='$(LIBS_DIR)'" -lcrmf -lsmime$NSS_VERSION -lssl$NSS_VERSION -lnss$NSS_VERSION -lsoftokn$NSS_VERSION"
   fi
fi

if test -z "$SKIP_LIBRARY_CHECKS"; then
dnl system JPEG support
dnl ========================================================
MOZ_ARG_WITH_STRING(system-jpeg,
[  --with-system-jpeg[=PFX]
                          Use system libjpeg [installed at prefix PFX]],
    JPEG_DIR=$withval)

_SAVE_CFLAGS=$CFLAGS
_SAVE_LDFLAGS=$LDFLAGS
_SAVE_LIBS=$LIBS
if test -n "${JPEG_DIR}" -a "${JPEG_DIR}" != "yes"; then
    CFLAGS="-I${JPEG_DIR}/include $CFLAGS"
    LDFLAGS="-L${JPEG_DIR}/lib $LDFLAGS"
fi
if test -z "$JPEG_DIR" -o "$JPEG_DIR" = no; then
    SYSTEM_JPEG=
else
    AC_CHECK_LIB(jpeg, jpeg_destroy_compress, [SYSTEM_JPEG=1 JPEG_LIBS="-ljpeg $JPEG_LIBS"], SYSTEM_JPEG=, $JPEG_LIBS)
fi

if test "$SYSTEM_JPEG" = 1; then
    LIBS="$JPEG_LIBS $LIBS"
    AC_TRY_COMPILE([ #include <stdio.h>
                     #include <sys/types.h>
                     #include <jpeglib.h> ],
                   [ #if JPEG_LIB_VERSION < $MOZJPEG
                     #error "Insufficient JPEG library version ($MOZJPEG required)."
                     #endif ],
                   SYSTEM_JPEG=1,
                   [SYSTEM_JPEG= JPEG_CFLAGS= JPEG_LIBS=]) 
fi 
CFLAGS=$_SAVE_CFLAGS
LDFLAGS=$_SAVE_LDFLAGS
LIBS=$_SAVE_LIBS

if test -n "${JPEG_DIR}" -a -d "${JPEG_DIR}" -a "$SYSTEM_JPEG" = 1; then
    JPEG_CFLAGS="-I${JPEG_DIR}/include"
    JPEG_LIBS="-L${JPEG_DIR}/lib ${JPEG_LIBS}"
fi

dnl system ZLIB support
dnl ========================================================
MOZ_ARG_WITH_STRING(system-zlib,
[  --with-system-zlib[=PFX]
                          Use system libz [installed at prefix PFX]],
    ZLIB_DIR=$withval)

_SAVE_CFLAGS=$CFLAGS
_SAVE_LDFLAGS=$LDFLAGS
_SAVE_LIBS=$LIBS
if test -n "${ZLIB_DIR}" -a "${ZLIB_DIR}" != "yes"; then
    CFLAGS="-I${ZLIB_DIR}/include $CFLAGS"
    LDFLAGS="-L${ZLIB_DIR}/lib $LDFLAGS"
fi
if test -z "$ZLIB_DIR" -o "$ZLIB_DIR" = no; then
    SYSTEM_ZLIB=
else
    AC_CHECK_LIB(z, gzread, [SYSTEM_ZLIB=1 ZLIB_LIBS="-lz $ZLIB_LIBS"], 
	[SYSTEM_ZLIB= ZLIB_CFLAGS= ZLIB_LIBS=], $ZLIB_LIBS)
fi
if test "$SYSTEM_ZLIB" = 1; then
    LIBS="$ZLIB_LIBS $LIBS"
    AC_TRY_COMPILE([ #include <stdio.h>
                     #include <string.h>
                     #include <zlib.h> ],
                   [ #if ZLIB_VERNUM < $MOZZLIB 
                     #error "Insufficient zlib version ($MOZZLIB required)."
                     #endif ],
                   SYSTEM_ZLIB=1,
                   [SYSTEM_ZLIB= ZLIB_CFLAGS= ZLIB_LIBS=]) 
fi
CFLAGS=$_SAVE_CFLAGS
LDFLAGS=$_SAVE_LDFLAGS
LIBS=$_SAVE_LIBS

if test "${ZLIB_DIR}" -a -d "${ZLIB_DIR}" -a "$SYSTEM_ZLIB" = 1; then
    ZLIB_CFLAGS="-I${ZLIB_DIR}/include"
    ZLIB_LIBS="-L${ZLIB_DIR}/lib ${ZLIB_LIBS}"
fi

dnl system PNG Support
dnl ========================================================
MOZ_ARG_WITH_STRING(system-png, 
[  --with-system-png[=PFX]
                          Use system libpng [installed at prefix PFX]],
    PNG_DIR=$withval)

_SAVE_CFLAGS=$CFLAGS
_SAVE_LDFLAGS=$LDFLAGS
_SAVE_LIBS=$LIBS
CFLAGS="$ZLIB_CFLAGS $CFLAGS"
LDFLAGS="$ZLIB_LIBS -lz $LDFLAGS"
if test -n "${PNG_DIR}" -a "${PNG_DIR}" != "yes"; then
    CFLAGS="-I${PNG_DIR}/include $CFLAGS"
    LDFLAGS="-L${PNG_DIR}/lib $LDFLAGS"
fi
if test -z "$PNG_DIR" -o "$PNG_DIR" = no; then
    SYSTEM_PNG=
else
    _SAVE_PNG_LIBS=$PNG_LIBS
    AC_CHECK_LIB(png, png_get_valid, [SYSTEM_PNG=1 PNG_LIBS="-lpng $PNG_LIBS"],
                 AC_MSG_ERROR([--with-system-png requested but no working libpng found]), 
                 $PNG_LIBS)
    AC_CHECK_LIB(png, png_get_acTL, ,
                 AC_MSG_ERROR([--with-system-png won't work because the system's libpng doesn't have APNG support]),
                 $_SAVE_PNG_LIBS)
fi
if test "$SYSTEM_PNG" = 1; then
    LIBS="$PNG_LIBS $LIBS"
    AC_TRY_COMPILE([ #include <stdio.h>
                     #include <sys/types.h>
                     #include <png.h> ],
                   [ #if PNG_LIBPNG_VER < $MOZPNG
                     #error "Insufficient libpng version ($MOZPNG required)."
                     #endif
                     #ifndef PNG_UINT_31_MAX
                     #error "Insufficient libpng version."
                     #endif ],
                   SYSTEM_PNG=1,
                   AC_MSG_ERROR([--with-system-png requested but no working libpng found]))
fi
CFLAGS=$_SAVE_CFLAGS
LDFLAGS=$_SAVE_LDFLAGS
LIBS=$_SAVE_LIBS

if test "${PNG_DIR}" -a -d "${PNG_DIR}" -a "$SYSTEM_PNG" = 1; then
    PNG_CFLAGS="-I${PNG_DIR}/include"
    PNG_LIBS="-L${PNG_DIR}/lib ${PNG_LIBS}"
fi

fi # SKIP_LIBRARY_CHECKS

dnl check whether to enable glitz
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(glitz,
[  --enable-glitz          Enable Glitz for use with Cairo],
    MOZ_ENABLE_GLITZ=1,
    MOZ_ENABLE_GLITZ= )
if test "$MOZ_ENABLE_GLITZ"; then
    AC_DEFINE(MOZ_ENABLE_GLITZ)
fi

dnl ========================================================
dnl Java SDK support
dnl ========================================================
JAVA_INCLUDE_PATH=
MOZ_ARG_WITH_STRING(java-include-path,
[  --with-java-include-path=dir   Location of Java SDK headers],
    JAVA_INCLUDE_PATH=$withval)

JAVA_BIN_PATH=
MOZ_ARG_WITH_STRING(java-bin-path,
[  --with-java-bin-path=dir   Location of Java binaries (java, javac, jar)],
    JAVA_BIN_PATH=$withval)

dnl ========================================================
dnl =
dnl = Application
dnl =
dnl ========================================================

MOZ_ARG_HEADER(Application)

BUILD_STATIC_LIBS=
ENABLE_TESTS=1
MOZ_ACTIVEX_SCRIPTING_SUPPORT=
MOZ_BRANDING_DIRECTORY=
MOZ_CALENDAR=
MOZ_DBGRINFO_MODULES=
MOZ_ENABLE_CANVAS=1
MOZ_EXTENSIONS_ALL=" wallet xml-rpc venkman inspector irc typeaheadfind gnomevfs sroaming datetime finger cview layout-debug tasks sql xforms schema-validation reporter"
MOZ_FEEDS=1
MOZ_IMG_DECODERS_DEFAULT="png gif jpeg bmp xbm icon"
MOZ_IMG_ENCODERS_DEFAULT="png jpeg"
MOZ_IPCD=
MOZ_JAVAXPCOM=
MOZ_JSDEBUGGER=1
MOZ_JSLOADER=1
MOZ_LDAP_XPCOM=
MOZ_LIBART_CFLAGS=
MOZ_LIBART_LIBS=
MOZ_MAIL_NEWS=
MOZ_MATHML=1
MOZ_MOCHITEST=1
MOZ_MORK=1
MOZ_MORKREADER=
MOZ_AUTH_EXTENSION=1
MOZ_NO_ACTIVEX_SUPPORT=1
MOZ_NO_INSPECTOR_APIS=
MOZ_NO_XPCOM_OBSOLETE=
MOZ_NO_FAST_LOAD=
MOZ_OJI=1
MOZ_PERMISSIONS=1
MOZ_PLACES=
MOZ_PLAINTEXT_EDITOR_ONLY=
MOZ_PLUGINS=1
MOZ_PREF_EXTENSIONS=1
MOZ_PROFILELOCKING=1
MOZ_PROFILESHARING=1
MOZ_PSM=1
MOZ_PYTHON_EXTENSIONS="xpcom dom"
MOZ_PYTHON=
MOZ_PYTHON_DEBUG_SUFFIX=
MOZ_PYTHON_DLL_SUFFIX=
MOZ_PYTHON_INCLUDES=
MOZ_PYTHON_LIBS=
MOZ_PYTHON_PREFIX=
MOZ_PYTHON_VER=
MOZ_PYTHON_VER_DOTTED=
MOZ_RDF=1
MOZ_REFLOW_PERF=
MOZ_SAFE_BROWSING=
MOZ_SPELLCHECK=1
MOZ_STATIC_MAIL_BUILD=
MOZ_STORAGE=1
MOZ_SVG=1
MOZ_TIMELINE=
MOZ_UI_LOCALE=en-US
MOZ_UNIVERSALCHARDET=1
MOZ_URL_CLASSIFIER=
MOZ_USE_NATIVE_UCONV=
MOZ_V1_STRING_ABI=
MOZ_VIEW_SOURCE=1
MOZ_WEBSERVICES=
MOZ_XMLEXTRAS=1
MOZ_XPFE_COMPONENTS=1
MOZ_XPINSTALL=1
MOZ_XSLT_STANDALONE=
MOZ_XTF=1
MOZ_XUL=1
MOZ_XUL_APP=1
MOZ_ZIPWRITER=1
NS_PRINTING=1
NECKO_COOKIES=1
NECKO_DISK_CACHE=1
NECKO_PROTOCOLS_DEFAULT="about data file ftp gopher http res viewsource"
NECKO_SMALL_BUFFERS=
SUNCTL=
JS_STATIC_BUILD=
XPC_IDISPATCH_SUPPORT=


case "$target_os" in
darwin*)
    ACCESSIBILITY=
    ;;
*)
    ACCESSIBILITY=1
    ;;
esac

case "$target_os" in
    msvc*|mks*|cygwin*|mingw*)
        if test -z "$GNU_CC"; then 
            XPC_IDISPATCH_SUPPORT=1
            MOZ_NO_ACTIVEX_SUPPORT=
            MOZ_ACTIVEX_SCRIPTING_SUPPORT=1
        fi
        ;;
esac

MOZ_ARG_ENABLE_STRING(application,
[  --enable-application=APP
                          Options include:
                            suite
                            browser (Firefox)
                            mail (Thunderbird)
                            minimo
                            composer
                            calendar (Sunbird)
                            xulrunner
                            camino
                            content/xslt (Standalone Transformiix XSLT)
                            netwerk (Standalone Necko)
                            tools/update-packaging (AUS-related packaging tools)
                            standalone (use this for standalone
                              xpcom/xpconnect or to manually drive a build)],
[ MOZ_BUILD_APP=$enableval ] )

if test "$MOZ_BUILD_APP" = "macbrowser"; then
    AC_MSG_WARN([--enable-application=macbrowser is deprecated. Use --enable-application=camino.])
    MOZ_BUILD_APP=camino
fi

case "$MOZ_BUILD_APP" in
minimo)
  MOZ_EMBEDDING_PROFILE=basic
  ;;

*)
  MOZ_EMBEDDING_PROFILE=default
  ;;
esac

MOZ_ARG_WITH_STRING(embedding-profile,
[  --with-embedding-profile=default|basic|minimal
                       see http://wiki.mozilla.org/Gecko:Small_Device_Support],
[ MOZ_EMBEDDING_PROFILE=$withval ])

case "$MOZ_EMBEDDING_PROFILE" in
default)
  MOZ_EMBEDDING_LEVEL_DEFAULT=1
  MOZ_EMBEDDING_LEVEL_BASIC=1
  MOZ_EMBEDDING_LEVEL_MINIMAL=1
  AC_DEFINE(MOZ_EMBEDDING_LEVEL_DEFAULT)
  AC_DEFINE(MOZ_EMBEDDING_LEVEL_BASIC)
  AC_DEFINE(MOZ_EMBEDDING_LEVEL_MINIMAL)
  ;;

basic)
  MOZ_EMBEDDING_LEVEL_DEFAULT=
  MOZ_EMBEDDING_LEVEL_BASIC=1
  MOZ_EMBEDDING_LEVEL_MINIMAL=1
  AC_DEFINE(MOZ_EMBEDDING_LEVEL_BASIC)
  AC_DEFINE(MOZ_EMBEDDING_LEVEL_MINIMAL)
  ENABLE_TESTS=
  MOZ_ACTIVEX_SCRIPTING_SUPPORT=
  MOZ_COMPOSER=
  MOZ_ENABLE_CANVAS=
  MOZ_ENABLE_POSTSCRIPT=
  MOZ_EXTENSIONS_DEFAULT=" spatialnavigation"
  MOZ_IMG_DECODERS_DEFAULT="png gif jpeg"
  MOZ_IMG_ENCODERS_DEFAULT=
  MOZ_IMG_ENCODERS=
  MOZ_INSTALLER=
  MOZ_JSDEBUGGER=
  MOZ_LDAP_XPCOM=
  MOZ_MAIL_NEWS=
  MOZ_MATHML=
  MOZ_AUTH_EXTENSION=
  MOZ_NO_ACTIVEX_SUPPORT=1
  MOZ_NO_INSPECTOR_APIS=1
  MOZ_NO_XPCOM_OBSOLETE=1
  MOZ_NO_FAST_LOAD=1
  MOZ_OJI=
  MOZ_PLAINTEXT_EDITOR_ONLY=1
#  MOZ_PLUGINS=
  MOZ_PREF_EXTENSIONS=
  MOZ_PROFILELOCKING=
  MOZ_PROFILESHARING=
  MOZ_SPELLCHECK=
  MOZ_SVG=
  MOZ_UNIVERSALCHARDET=
  MOZ_UPDATER=
  MOZ_USE_NATIVE_UCONV=1
  MOZ_VIEW_SOURCE=
  MOZ_XPFE_COMPONENTS=
  MOZ_XPINSTALL=
  MOZ_XTF=
  MOZ_ZIPWRITER=
  NECKO_DISK_CACHE=
  NECKO_PROTOCOLS_DEFAULT="about data http file res"
  NECKO_SMALL_BUFFERS=1
  NS_DISABLE_LOGGING=1
  NS_PRINTING=
  JS_STATIC_BUILD=1
  ;;

minimal)
  MOZ_EMBEDDING_LEVEL_DEFAULT=
  MOZ_EMBEDDING_LEVEL_BASIC=
  MOZ_EMBEDDING_LEVEL_MINIMAL=1
  AC_DEFINE(MOZ_EMBEDDING_LEVEL_MINIMAL)
  ENABLE_TESTS=
  MOZ_ACTIVEX_SCRIPTING_SUPPORT=
  MOZ_COMPOSER=
  MOZ_ENABLE_CANVAS=
  MOZ_ENABLE_POSTSCRIPT=
  MOZ_EXTENSIONS_DEFAULT=" spatialnavigation"
  MOZ_IMG_DECODERS_DEFAULT="png gif jpeg"
  MOZ_IMG_ENCODERS_DEFAULT=
  MOZ_IMG_ENCODERS=
  MOZ_INSTALLER=
  MOZ_JSDEBUGGER=
  MOZ_LDAP_XPCOM=
  MOZ_MAIL_NEWS=
  MOZ_MATHML=
  MOZ_AUTH_EXTENSION=
  MOZ_NO_ACTIVEX_SUPPORT=1
  MOZ_NO_INSPECTOR_APIS=1
  MOZ_NO_XPCOM_OBSOLETE=1
  MOZ_NO_FAST_LOAD=1
  MOZ_OJI=
  MOZ_PLAINTEXT_EDITOR_ONLY=1
  MOZ_PLUGINS=
  MOZ_PREF_EXTENSIONS=
  MOZ_PROFILELOCKING=
  MOZ_PROFILESHARING=
  MOZ_SPELLCHECK=
  MOZ_STORAGE=1
  MOZ_PLACES=
  MOZ_SVG=
  MOZ_UNIVERSALCHARDET=
  MOZ_UPDATER=
  MOZ_USE_NATIVE_UCONV=1
  MOZ_VIEW_SOURCE=
  MOZ_XPFE_COMPONENTS=
  MOZ_XPINSTALL=
  MOZ_XTF=
  MOZ_XUL=
  MOZ_ZIPWRITER=
  MOZ_RDF=
  NECKO_DISK_CACHE=
  NECKO_PROTOCOLS_DEFAULT="about data http file res"
  NECKO_SMALL_BUFFERS=1
  NS_DISABLE_LOGGING=1
  NS_PRINTING=
  JS_STATIC_BUILD=1
  ;;

*)
  AC_MSG_ERROR([Unrecognized value: --with-embedding-profile=$MOZ_EMBEDDING_PROFILE])
  ;;
esac

AC_SUBST(MOZ_EMBEDDING_LEVEL_DEFAULT)
AC_SUBST(MOZ_EMBEDDING_LEVEL_BASIC)
AC_SUBST(MOZ_EMBEDDING_LEVEL_MINIMAL)

MOZ_ARG_WITH_STRING(xulrunner-stub-name,
[  --with-xulrunner-stub-name=appname   Create the xulrunner stub with the given name],
  XULRUNNER_STUB_NAME=$withval)

if test -z "$XULRUNNER_STUB_NAME"; then
  case "$target_os" in
  darwin*)
    XULRUNNER_STUB_NAME=xulrunner
    ;;
  *)
    XULRUNNER_STUB_NAME=xulrunner-stub
  esac
fi
AC_SUBST(XULRUNNER_STUB_NAME)

if test -z "$MOZ_BUILD_APP"; then
  AC_MSG_ERROR([--enable-application=APP was not specified and is required.])
else
  # We have a valid application only if it has a build.mk file in its top
  # directory.
  if test ! -f "${srcdir}/${MOZ_BUILD_APP}/build.mk" ; then
    AC_MSG_ERROR([--enable-application value not recognized (${MOZ_BUILD_APP}/build.mk does not exist).])
  fi
fi

# Allow the application to influence configure with a confvars.sh script.

AC_MSG_CHECKING([if app-specific confvars.sh exists])
if test -f "${srcdir}/${MOZ_BUILD_APP}/confvars.sh" ; then
  AC_MSG_RESULT([${srcdir}/${MOZ_BUILD_APP}/confvars.sh])
  . "${srcdir}/${MOZ_BUILD_APP}/confvars.sh"
else
  AC_MSG_RESULT([no])
fi

# Now is a good time to test for logic errors, define mismatches, etc.
case "$MOZ_BUILD_APP" in
xulrunner)
  if test "$LIBXUL_SDK"; then
    AC_MSG_ERROR([Building XULRunner --with-libxul-sdk doesn't make sense; XULRunner provides the libxul SDK.])
  fi
  ;;
*)
  # Fix this case for folks who forget. Warn them.
  if test -n "$LIBXUL_SDK" -a -z "$MOZ_XUL_APP"; then
    AC_MSG_WARN([Setting MOZ_XUL_APP since LIBXUL_SDK was set. Add to confvars.sh!])
    MOZ_XUL_APP=1
  fi
  ;;
esac

# Special cases where we need to AC_DEFINE something. Also a holdover for apps
# that haven't made a confvars.sh yet. Don't add new stuff here, use
# MOZ_BUILD_APP.
case "$MOZ_BUILD_APP" in
suite)
  AC_DEFINE(MOZ_SUITE)
  ;;

browser)
  AC_DEFINE(MOZ_PHOENIX)
  ;;

minimo)
  AC_DEFINE(MINIMO)
  ;;

mail)
  AC_DEFINE(MOZ_THUNDERBIRD)
  ;;

composer)
  AC_DEFINE(MOZ_STANDALONE_COMPOSER)
  ;;

calendar)
  AC_DEFINE(MOZ_SUNBIRD)
  ;;

xulrunner)
  AC_DEFINE(MOZ_XULRUNNER)
  ;;

camino) 
  AC_DEFINE(MOZ_MACBROWSER)
  ;;

content/xslt)
  AC_DEFINE(TX_EXE)
  ;;

standalone) 
  MOZ_APP_NAME=mozilla
  MOZ_APP_DISPLAYNAME=Mozilla
  MOZ_APP_VERSION=$MOZILLA_VERSION
  ;;

esac

AC_SUBST(MOZ_BUILD_APP)
AC_SUBST(MOZ_XUL_APP)
AC_SUBST(MOZ_SUITE)
AC_SUBST(MOZ_PHOENIX)
AC_SUBST(MOZ_THUNDERBIRD)
AC_SUBST(MOZ_STANDALONE_COMPOSER)
AC_SUBST(MOZ_SUNBIRD)
AC_SUBST(MOZ_XULRUNNER)

AC_DEFINE_UNQUOTED(MOZ_BUILD_APP,$MOZ_BUILD_APP)

if test "$MOZ_XUL_APP"; then
  MOZ_PROFILESHARING=
  AC_DEFINE(MOZ_XUL_APP)
fi

dnl ========================================================
dnl = 
dnl = Toolkit Options
dnl = 
dnl ========================================================
MOZ_ARG_HEADER(Toolkit Options)

    dnl ========================================================
    dnl = Select the default toolkit
    dnl ========================================================
	MOZ_ARG_ENABLE_STRING(default-toolkit,
	[  --enable-default-toolkit=TK
                          Select default toolkit
                          Platform specific defaults:
                            BeOS - cairo-beos
                            Mac OS X - cairo-cocoa
                            Neutrino/QNX - photon
                            OS/2 - cairo-os2
                            Win32 - cairo-windows
                            WinCE - windows
                            * - cairo-gtk2],
    [ _DEFAULT_TOOLKIT=$enableval ],
    [ _DEFAULT_TOOLKIT=$_PLATFORM_DEFAULT_TOOLKIT])

    if test "$_DEFAULT_TOOLKIT" = "photon" \
        -o "$_DEFAULT_TOOLKIT" = "cairo-windows" \
        -o "$_DEFAULT_TOOLKIT" = "cairo-gtk2" \
        -o "$_DEFAULT_TOOLKIT" = "cairo-beos" \
        -o "$_DEFAULT_TOOLKIT" = "cairo-os2" \
        -o "$_DEFAULT_TOOLKIT" = "cairo-mac" \
        -o "$_DEFAULT_TOOLKIT" = "cairo-cocoa"
    then
        dnl nglayout only supports building with one toolkit,
        dnl so ignore everything after the first comma (",").
        MOZ_WIDGET_TOOLKIT=`echo "$_DEFAULT_TOOLKIT" | sed -e "s/,.*$//"`
    else
        if test "$no_x" != "yes"; then
            AC_MSG_ERROR([Toolkit must be cairo-gtk2.])
        else
            AC_MSG_ERROR([Toolkit must be $_PLATFORM_DEFAULT_TOOLKIT (if supported).])
        fi
    fi

AC_DEFINE_UNQUOTED(MOZ_DEFAULT_TOOLKIT,"$MOZ_WIDGET_TOOLKIT")

dnl ========================================================
dnl = Enable the toolkit as needed                         =
dnl ========================================================

case "$MOZ_WIDGET_TOOLKIT" in
photon)
	MOZ_ENABLE_PHOTON=1
	AC_DEFINE(MOZ_WIDGET_PHOTON)
    ;;

cairo-windows)
    MOZ_WIDGET_TOOLKIT=windows
    MOZ_GFX_TOOLKIT=cairo
    MOZ_ENABLE_CAIRO_GFX=1
    ;;

cairo-gtk2)
    MOZ_WIDGET_TOOLKIT=gtk2
    MOZ_GFX_TOOLKIT=cairo
    MOZ_ENABLE_CAIRO_GFX=1
    MOZ_ENABLE_GTK2=1
    MOZ_ENABLE_XREMOTE=1
    TK_CFLAGS='$(MOZ_GTK2_CFLAGS)'
    TK_LIBS='$(MOZ_GTK2_LIBS)'
    AC_DEFINE(MOZ_WIDGET_GTK2)
    ;;
cairo-beos)
    MOZ_WIDGET_TOOLKIT=beos
    MOZ_GFX_TOOLKIT=cairo
    MOZ_ENABLE_CAIRO_GFX=1
    TK_CFLAGS='$(MOZ_CAIRO_CFLAGS)'
    TK_LIBS='$(MOZ_CAIRO_LIBS)'
    ;;

cairo-os2)
    MOZ_WIDGET_TOOLKIT=os2
    MOZ_GFX_TOOLKIT=cairo
    MOZ_ENABLE_CAIRO_GFX=1
    TK_CFLAGS='$(MOZ_CAIRO_CFLAGS)'
    TK_LIBS='$(MOZ_CAIRO_LIBS)'
    ;;

cairo-mac|cairo-cocoa)
    if test "$MOZ_WIDGET_TOOLKIT" = "cairo-cocoa"; then
        MOZ_WIDGET_TOOLKIT=cocoa
        AC_DEFINE(MOZ_WIDGET_COCOA)
        MOZ_ENABLE_COCOA=1
    else
        MOZ_WIDGET_TOOLKIT=mac
    fi
    MOZ_ENABLE_CAIRO_GFX=1
    MOZ_GFX_TOOLKIT=cairo
    MOZ_USER_DIR="Mozilla"
    AC_DEFINE(XP_MACOSX)
    AC_DEFINE(TARGET_CARBON)
    AC_DEFINE(TARGET_API_MAC_CARBON)
    TK_LIBS='-framework Carbon'
    TK_CFLAGS="-I${MACOS_SDK_DIR}/Developer/Headers/FlatCarbon"
    CFLAGS="$CFLAGS $TK_CFLAGS"
    CXXFLAGS="$CXXFLAGS $TK_CFLAGS"
    ;;
esac

if test "$MOZ_ENABLE_XREMOTE"; then
    AC_DEFINE(MOZ_ENABLE_XREMOTE)
fi

if test "$COMPILE_ENVIRONMENT"; then
if test "$MOZ_ENABLE_GTK2"
then
    PKG_CHECK_MODULES(MOZ_GTK2, gtk+-2.0 >= $GTK2_VERSION gdk-x11-2.0 glib-2.0 gobject-2.0)
fi
fi # COMPILE_ENVIRONMENT

AC_SUBST(MOZ_DEFAULT_TOOLKIT)

dnl ========================================================
dnl = startup-notification support module
dnl ========================================================

if test "$MOZ_ENABLE_GTK2"
then
    MOZ_ENABLE_STARTUP_NOTIFICATION=

    MOZ_ARG_ENABLE_BOOL(startup-notification,
    [  --enable-startup-notification       Enable startup-notification support (default: disabled) ],
        MOZ_ENABLE_STARTUP_NOTIFICATION=force,
        MOZ_ENABLE_STARTUP_NOTIFICATION=)
    if test "$MOZ_ENABLE_STARTUP_NOTIFICATION"
    then
        PKG_CHECK_MODULES(MOZ_STARTUP_NOTIFICATION,
                          libstartup-notification-1.0 >= $STARTUP_NOTIFICATION_VERSION,
        [MOZ_ENABLE_STARTUP_NOTIFICATION=1], [
            if test "$MOZ_ENABLE_STARTUP_NOTIFICATION" = "force"
            then
                AC_MSG_ERROR([* * * Could not find startup-notification >= $STARTUP_NOTIFICATION_VERSION])
            fi
            MOZ_ENABLE_STARTUP_NOTIFICATION=
        ])
    fi

    if test "$MOZ_ENABLE_STARTUP_NOTIFICATION"; then
        AC_DEFINE(MOZ_ENABLE_STARTUP_NOTIFICATION)
    fi

    TK_LIBS="$TK_LIBS $MOZ_STARTUP_NOTIFICATION_LIBS"
fi
AC_SUBST(MOZ_ENABLE_STARTUP_NOTIFICATION)
AC_SUBST(MOZ_STARTUP_NOTIFICATION_CFLAGS)
AC_SUBST(MOZ_STARTUP_NOTIFICATION_LIBS)

AC_SUBST(GTK_CONFIG)
AC_SUBST(TK_CFLAGS)
AC_SUBST(TK_LIBS)

AC_SUBST(MOZ_ENABLE_GTK2)
AC_SUBST(MOZ_ENABLE_PHOTON)
AC_SUBST(MOZ_ENABLE_COCOA)
AC_SUBST(MOZ_ENABLE_CAIRO_GFX)
AC_SUBST(MOZ_ENABLE_GLITZ)
AC_SUBST(MOZ_ENABLE_XREMOTE)
AC_SUBST(MOZ_GTK2_CFLAGS)
AC_SUBST(MOZ_GTK2_LIBS)

AC_SUBST(MOC)

if test "$MOZ_ENABLE_CAIRO_GFX"
then
    AC_DEFINE(MOZ_THEBES)
    AC_DEFINE(MOZ_CAIRO_GFX)
fi

if test "$MOZ_ENABLE_GTK2"
then
    AC_DEFINE(MOZ_X11)
    MOZ_X11=1
fi
AC_SUBST(MOZ_X11)

dnl ========================================================
dnl =
dnl = Components & Features
dnl = 
dnl ========================================================
MOZ_ARG_HEADER(Components and Features)

dnl ========================================================
dnl = Localization
dnl ========================================================
MOZ_ARG_ENABLE_STRING(ui-locale,
[  --enable-ui-locale=ab-CD
                          Select the user interface locale (default: en-US)],
    MOZ_UI_LOCALE=$enableval )
AC_SUBST(MOZ_UI_LOCALE)

dnl =========================================================
dnl = Calendar client
dnl =========================================================
MOZ_ARG_ENABLE_BOOL(calendar,,
    MOZ_OLD_CALENDAR=1,
    MOZ_OLD_CALENDAR= )

if test "$MOZ_OLD_CALENDAR"; then
    AC_MSG_WARN([Building with the calendar extension is no longer supported.])
    if test "$MOZ_THUNDERBIRD"; then
        AC_MSG_WARN([Since you're trying to build mail, you could try adding])
        AC_MSG_WARN(['--enable-extensions=default,lightning' to your mozconfig])
        AC_MSG_WARN([and building WITH A FRESH TREE.])
    fi
    AC_MSG_WARN([For more information, please visit:])
    AC_MSG_ERROR([http://www.mozilla.org/projects/calendar/])
fi

AC_SUBST(MOZ_CALENDAR)

dnl =========================================================
dnl = Mail & News
dnl =========================================================
MOZ_ARG_DISABLE_BOOL(mailnews,
[  --disable-mailnews      Disable building of mail & news components],
    MOZ_MAIL_NEWS=,
    MOZ_MAIL_NEWS=1 )
AC_SUBST(MOZ_MAIL_NEWS)

dnl ========================================================
dnl static mail build off by default 
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(static-mail,
[  --enable-static-mail Enable static mail build support],
    MOZ_STATIC_MAIL_BUILD=1,
    MOZ_STATIC_MAIL_BUILD= )

if test "$MOZ_STATIC_MAIL_BUILD"; then
    AC_DEFINE(MOZ_STATIC_MAIL_BUILD)
fi

AC_SUBST(MOZ_STATIC_MAIL_BUILD)

dnl =========================================================
dnl = LDAP
dnl =========================================================
MOZ_ARG_DISABLE_BOOL(ldap,
[  --disable-ldap          Disable LDAP support],
    MOZ_LDAP_XPCOM=,
    MOZ_LDAP_XPCOM=1)

dnl ========================================================
dnl = Trademarked Branding 
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(official-branding,
[  --enable-official-branding Enable Official mozilla.org Branding
                          Do not distribute builds with
                          --enable-official-branding unless you have
                          permission to use trademarks per
                          http://www.mozilla.org/foundation/trademarks/ .],
[case "$MOZ_BUILD_APP" in
browser)
    MOZ_BRANDING_DIRECTORY=other-licenses/branding/firefox
    MOZ_APP_DISPLAYNAME=Firefox
    ;;

calendar)
    MOZ_BRANDING_DIRECTORY=other-licenses/branding/sunbird
    MOZ_APP_DISPLAYNAME=Sunbird
    ;;

mail)
    MOZ_BRANDING_DIRECTORY=other-licenses/branding/thunderbird
    ;;

*)]
    AC_MSG_ERROR([Official branding is only available for Firefox Sunbird and Thunderbird.])
esac
)

MOZ_ARG_WITH_STRING(branding,
[  --with-branding=dir    Use branding from the specified directory.],
    MOZ_BRANDING_DIRECTORY=$withval)

REAL_BRANDING_DIRECTORY="${MOZ_BRANDING_DIRECTORY}"
if test -z "$REAL_BRANDING_DIRECTORY"; then
  REAL_BRANDING_DIRECTORY=${MOZ_BUILD_APP}/branding/nightly
fi

if test -f "$topsrcdir/$REAL_BRANDING_DIRECTORY/configure.sh"; then
  . "$topsrcdir/$REAL_BRANDING_DIRECTORY/configure.sh"
fi

AC_SUBST(MOZ_BRANDING_DIRECTORY)

dnl ========================================================
dnl = Distribution ID
dnl ========================================================
MOZ_ARG_WITH_STRING(distribution-id,
[  --with-distribution-id=ID  Set distribution-specific id (default=org.mozilla)],
[ val=`echo $withval`
    MOZ_DISTRIBUTION_ID="$val"])

if test -z "$MOZ_DISTRIBUTION_ID"; then
   MOZ_DISTRIBUTION_ID="org.mozilla"
fi

AC_DEFINE_UNQUOTED(MOZ_DISTRIBUTION_ID,"$MOZ_DISTRIBUTION_ID")
AC_SUBST(MOZ_DISTRIBUTION_ID)

dnl ========================================================
dnl = Xft
dnl ========================================================
if test "$MOZ_ENABLE_GTK2"; then
    MOZ_ENABLE_XFT=1
fi

MOZ_ARG_DISABLE_BOOL(xft,
[  --disable-xft           Disable Xft support ],
    MOZ_ENABLE_XFT=,
    MOZ_ENABLE_XFT=1)

if test "$MOZ_ENABLE_XFT" && test -z "$MOZ_ENABLE_GTK2"; then
    AC_MSG_ERROR([Cannot enable XFT support for non-GTK2 toolkits.])
fi

if test "$MOZ_ENABLE_XFT"
then
    AC_DEFINE(MOZ_ENABLE_XFT)
    PKG_CHECK_MODULES(MOZ_XFT, xft)
    PKG_CHECK_MODULES(_PANGOCHK, pango >= $PANGO_VERSION)
fi

AC_SUBST(MOZ_ENABLE_XFT)
AC_SUBST(MOZ_XFT_CFLAGS)
AC_SUBST(MOZ_XFT_LIBS)

dnl ========================================================
dnl = pango font rendering
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(pango,
[  --enable-pango          Enable Pango font rendering support],
    MOZ_ENABLE_PANGO=1,
    MOZ_ENABLE_PANGO=)

if test "$MOZ_ENABLE_PANGO" && test -z "$MOZ_ENABLE_CAIRO_GFX"
then
    AC_MSG_ERROR([Cairo gfx is required for Pango font rendering])
fi

if test "$MOZ_ENABLE_GTK2" && test "$MOZ_ENABLE_CAIRO_GFX"
then
    # For gtk2, we require --enable-pango; gtk2 already implies --enable-xft
    if test -z "$MOZ_ENABLE_PANGO"
    then
        AC_MSG_WARN([Pango is required for cairo gfx builds, assuming --enable-pango])
        MOZ_ENABLE_PANGO=1
    fi
fi

if test "$MOZ_ENABLE_PANGO" && test "$MOZ_ENABLE_CAIRO_GFX"
then
    AC_DEFINE(MOZ_ENABLE_PANGO)
    PKG_CHECK_MODULES(MOZ_PANGO, pango >= $PANGO_VERSION pangocairo >= $PANGO_VERSION pangoft2 >= $PANGO_VERSION)
    AC_SUBST(MOZ_ENABLE_PANGO)
    AC_SUBST(MOZ_PANGO_CFLAGS)
    AC_SUBST(MOZ_PANGO_LIBS)
fi

dnl ========================================================
dnl = x11 core font support (default and ability to enable depend on toolkit)
dnl ========================================================
if test "$MOZ_X11"
then
    MOZ_ENABLE_COREXFONTS=${MOZ_ENABLE_COREXFONTS-1}
else
    MOZ_ENABLE_COREXFONTS=
fi
if test "$MOZ_ENABLE_COREXFONTS"
then
    AC_DEFINE(MOZ_ENABLE_COREXFONTS)
fi

AC_SUBST(MOZ_ENABLE_COREXFONTS)

dnl ========================================================
dnl = PostScript print module
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(postscript,
[  --disable-postscript    Disable PostScript printing support ],
    MOZ_ENABLE_POSTSCRIPT=,
    MOZ_ENABLE_POSTSCRIPT=1 )

dnl ========================================================
dnl = GnomeVFS support module
dnl ========================================================

if test "$MOZ_X11"
then
    dnl build the gnomevfs extension by default only when the
    dnl GTK2 toolkit is in use.
    if test "$MOZ_ENABLE_GTK2"
    then
        MOZ_ENABLE_GNOMEVFS=1
        MOZ_ENABLE_GCONF=1
        MOZ_ENABLE_LIBGNOME=1
    fi

    MOZ_ARG_DISABLE_BOOL(gnomevfs,
    [  --disable-gnomevfs      Disable GnomeVFS support ],
        MOZ_ENABLE_GNOMEVFS=,
        MOZ_ENABLE_GNOMEVFS=force)

    if test "$MOZ_ENABLE_GNOMEVFS"
    then
        PKG_CHECK_MODULES(MOZ_GNOMEVFS, gnome-vfs-2.0 >= $GNOMEVFS_VERSION gnome-vfs-module-2.0 >= $GNOMEVFS_VERSION,[
            MOZ_GNOMEVFS_LIBS=`echo $MOZ_GNOMEVFS_LIBS | sed 's/-llinc\>//'`
            MOZ_ENABLE_GNOMEVFS=1
        ],[
            if test "$MOZ_ENABLE_GNOMEVFS" = "force"
            then
                AC_MSG_ERROR([* * * Could not find gnome-vfs-module-2.0 >= $GNOMEVFS_VERSION])
            fi
            MOZ_ENABLE_GNOMEVFS=
        ])
    fi

    AC_SUBST(MOZ_GNOMEVFS_CFLAGS)
    AC_SUBST(MOZ_GNOMEVFS_LIBS)

    if test "$MOZ_ENABLE_GCONF"
    then
        PKG_CHECK_MODULES(MOZ_GCONF, gconf-2.0 >= $GCONF_VERSION,[
            MOZ_GCONF_LIBS=`echo $MOZ_GCONF_LIBS | sed 's/-llinc\>//'`
            MOZ_ENABLE_GCONF=1
        ],[
            MOZ_ENABLE_GCONF=
        ])
    fi

    AC_SUBST(MOZ_GCONF_CFLAGS)
    AC_SUBST(MOZ_GCONF_LIBS)

    if test "$MOZ_ENABLE_LIBGNOME"
    then
        PKG_CHECK_MODULES(MOZ_LIBGNOME, libgnome-2.0 >= $LIBGNOME_VERSION,[
            MOZ_LIBGNOME_LIBS=`echo $MOZ_LIBGNOME_LIBS | sed 's/-llinc\>//'`
            MOZ_ENABLE_LIBGNOME=1
        ],[
            MOZ_ENABLE_LIBGNOME=
        ])
    fi

    AC_SUBST(MOZ_LIBGNOME_CFLAGS)
    AC_SUBST(MOZ_LIBGNOME_LIBS)

    # The GNOME component is built if gtk2, gconf, gnome-vfs, and libgnome
    # are all available.

    if test "$MOZ_ENABLE_GTK2" -a "$MOZ_ENABLE_GCONF" -a \
            "$MOZ_ENABLE_GNOMEVFS" -a "$MOZ_ENABLE_LIBGNOME"; then
      MOZ_ENABLE_GNOME_COMPONENT=1
    else
      MOZ_ENABLE_GNOME_COMPONENT=
    fi

    AC_SUBST(MOZ_ENABLE_GNOME_COMPONENT)
fi

dnl ========================================================
dnl = libgnomeui support module
dnl ========================================================

if test "$MOZ_ENABLE_GTK2"
then
    MOZ_ENABLE_GNOMEUI=1

    MOZ_ARG_DISABLE_BOOL(gnomeui,
    [  --disable-gnomeui       Disable libgnomeui support (default: auto, optional at runtime) ],
        MOZ_ENABLE_GNOMEUI=,
        MOZ_ENABLE_GNOMEUI=force)

    if test "$MOZ_ENABLE_GNOMEUI"
    then
        PKG_CHECK_MODULES(MOZ_GNOMEUI, libgnomeui-2.0 >= $GNOMEUI_VERSION,
        [
            MOZ_GNOMEUI_LIBS=`echo $MOZ_GNOMEUI_LIBS | sed 's/-llinc\>//'`
            MOZ_ENABLE_GNOMEUI=1
        ],[
            if test "$MOZ_ENABLE_GNOMEUI" = "force"
            then
                AC_MSG_ERROR([* * * Could not find libgnomeui-2.0 >= $GNOMEUI_VERSION])
            fi
            MOZ_ENABLE_GNOMEUI=
        ])
    fi

    if test "$MOZ_ENABLE_GNOMEUI"; then
        AC_DEFINE(MOZ_ENABLE_GNOMEUI)
    fi
fi
AC_SUBST(MOZ_ENABLE_GNOMEUI)
AC_SUBST(MOZ_GNOMEUI_CFLAGS)
AC_SUBST(MOZ_GNOMEUI_LIBS)

dnl ========================================================
dnl = dbus support
dnl ========================================================

if test "$MOZ_ENABLE_GTK2"
then
    MOZ_ARG_ENABLE_BOOL(dbus,
    [  --enable-dbus       Enable dbus support (default: disabled) ],
        MOZ_ENABLE_DBUS=force,
        MOZ_ENABLE_DBUS=)

    if test "$MOZ_ENABLE_DBUS"
    then
        PKG_CHECK_MODULES(MOZ_DBUS_GLIB, dbus-glib-1 >= $DBUS_VERSION,
        [
            MOZ_ENABLE_DBUS=1
        ],[
            if test "$MOZ_ENABLE_DBUS" = "force"
            then
                AC_MSG_ERROR([* * * Could not find dbus-glib-1 >= $DBUS_VERSION])
            fi
            MOZ_ENABLE_DBUS=
        ])
    fi

    if test "$MOZ_ENABLE_DBUS"; then
        AC_DEFINE(MOZ_ENABLE_DBUS)
    fi
fi
AC_SUBST(MOZ_ENABLE_DBUS)
AC_SUBST(MOZ_DBUS_GLIB_CFLAGS)
AC_SUBST(MOZ_DBUS_GLIB_LIBS)

dnl ========================================================
dnl = Setting MOZ_EXTRA_X11CONVERTERS turns on additional 
dnl = converters in intl/uconv that are used only by X11 gfx 
dnl = implementations. By default, it's undefined so that 
dnl = those converters are not built on other platforms/toolkits. 
dnl = (see bug 180851)
dnl ========================================================

if test "$MOZ_ENABLE_GTK2" \
&& test "$MOZ_ENABLE_COREXFONTS"
then
    AC_DEFINE(MOZ_EXTRA_X11CONVERTERS)
    MOZ_EXTRA_X11CONVERTERS=1
fi
AC_SUBST(MOZ_EXTRA_X11CONVERTERS)

dnl ========================================================
dnl = Build Personal Security Manager
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(crypto,
[  --disable-crypto        Disable crypto support (Personal Security Manager)],
    MOZ_PSM=,
    MOZ_PSM=1 )

dnl ========================================================
dnl = JS Debugger XPCOM component (js/jsd)
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(jsd,
[  --disable-jsd           Disable JavaScript debug library],
    MOZ_JSDEBUGGER=,
    MOZ_JSDEBUGGER=1)


dnl ========================================================
dnl = Disable plugin support
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(plugins,
[  --disable-plugins       Disable plugins support],
    MOZ_PLUGINS=,
    MOZ_PLUGINS=1)

dnl ========================================================
dnl = Open JVM Interface (OJI) support
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(oji,
[  --disable-oji           Disable Open JVM Integration support],
    MOZ_OJI=,
    MOZ_OJI=1)
if test -n "$MOZ_OJI"; then
    AC_DEFINE(OJI)
fi

dnl bi-directional support always on
IBMBIDI=1
AC_DEFINE(IBMBIDI)

dnl ========================================================
dnl complex text support off by default
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(ctl,
[  --enable-ctl            Enable Thai Complex Script support],
    SUNCTL=1,
    SUNCTL= )

dnl ========================================================
dnl view source support on by default
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(view-source,
[  --disable-view-source     Disable view source support],
    MOZ_VIEW_SOURCE=,
    MOZ_VIEW_SOURCE=1 )
if test "$MOZ_VIEW_SOURCE"; then
    AC_DEFINE(MOZ_VIEW_SOURCE)
fi


dnl ========================================================
dnl accessibility support on by default on all platforms 
dnl except OS X.
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(accessibility,
[  --disable-accessibility Disable accessibility support (off by default on OS X)],
    ACCESSIBILITY=,
    ACCESSIBILITY=1 )
if test "$ACCESSIBILITY"; then
    AC_DEFINE(ACCESSIBILITY)
fi

dnl ========================================================
dnl xpfe/components on by default
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(xpfe-components,
[  --disable-xpfe-components
                          Disable xpfe components],
    MOZ_XPFE_COMPONENTS=,
    MOZ_XPFE_COMPONENTS=1 )

dnl ========================================================
dnl xpinstall support on by default
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(xpinstall,
[  --disable-xpinstall     Disable xpinstall support],
    MOZ_XPINSTALL=,
    MOZ_XPINSTALL=1 )
if test "$MOZ_XPINSTALL"; then
    AC_DEFINE(MOZ_XPINSTALL)
fi

dnl ========================================================
dnl xpcom js loader support on by default
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(jsloader,
[  --disable-jsloader      Disable xpcom js loader support],
    MOZ_JSLOADER=,
    MOZ_JSLOADER=1 )
if test "$MOZ_JSLOADER"; then
    AC_DEFINE(MOZ_JSLOADER)
fi

dnl ========================================================
dnl Disable printing
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(printing,
[  --disable-printing  Disable printing support],
    NS_PRINTING=,
    NS_PRINTING=1 )

if test "$NS_PRINTING"; then
    AC_DEFINE(NS_PRINTING)
    AC_DEFINE(NS_PRINT_PREVIEW)
fi

dnl ========================================================
dnl use native unicode converters
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(native-uconv,
[  --enable-native-uconv   Enable iconv support],
    MOZ_USE_NATIVE_UCONV=1,
    MOZ_USE_NATIVE_UCONV= )
if test "$MOZ_USE_NATIVE_UCONV"; then
    AC_DEFINE(MOZ_USE_NATIVE_UCONV)
fi
if test "$OS_ARCH" != "WINCE" -a "$OS_ARCH" != "WINNT" -a "$MOZ_USE_NATIVE_UCONV" -a "$ac_cv_func_iconv" != "yes"; then
    AC_MSG_ERROR([iconv() not found.  Cannot enable native uconv support.])
fi


dnl ========================================================
dnl Libeditor can be build as plaintext-only,
dnl or as a full html and text editing component.
dnl We build both by default.
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(plaintext-editor-only,
[  --enable-plaintext-editor-only
                          Allow only plaintext editing],
    MOZ_PLAINTEXT_EDITOR_ONLY=1,
    MOZ_PLAINTEXT_EDITOR_ONLY= )
dnl Note the #define is MOZILLA, not MOZ, for compat with the Mac build.
AC_SUBST(MOZ_PLAINTEXT_EDITOR_ONLY)

dnl ========================================================
dnl Composer is on by default.
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(composer,
[  --disable-composer      Disable building of Composer],
    MOZ_COMPOSER=,
    MOZ_COMPOSER=1 )
AC_SUBST(MOZ_COMPOSER)


dnl ========================================================
dnl = Drop XPCOM Obsolete library
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(xpcom-obsolete,
[  --disable-xpcom-obsolete           Disable XPCOM Obsolete Library],
    MOZ_NO_XPCOM_OBSOLETE=1,
    MOZ_NO_XPCOM_OBSOLETE=)

if test -n "$MOZ_NO_XPCOM_OBSOLETE"; then
    AC_DEFINE(MOZ_NO_XPCOM_OBSOLETE)
fi

dnl ========================================================
dnl = Disable Fast Load
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(xpcom-fastload,
[  --disable-xpcom-fastload           Disable XPCOM fastload support],
    MOZ_NO_FAST_LOAD=1,
    MOZ_NO_FAST_LOAD=)

AC_SUBST(MOZ_NO_FAST_LOAD)

if test -n "$MOZ_NO_FAST_LOAD"; then
    AC_DEFINE(MOZ_NO_FAST_LOAD)
fi

dnl ========================================================
dnl Permissions System
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(permissions,
[  --disable-permissions   Disable permissions (popup and cookie blocking)],
    MOZ_PERMISSIONS=,
    MOZ_PERMISSIONS=1
)

dnl ========================================================
dnl NegotiateAuth
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(negotiateauth,
[  --disable-negotiateauth Disable GSS-API negotiation ],
    MOZ_AUTH_EXTENSION=,
    MOZ_AUTH_EXTENSION=1 )

dnl ========================================================
dnl XTF
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(xtf,
[  --disable-xtf           Disable XTF (pluggable xml tags) support],
    MOZ_XTF=,
    MOZ_XTF=1 )
if test "$MOZ_XTF"; then
  AC_DEFINE(MOZ_XTF)
fi

dnl ========================================================
dnl Inspector APIs
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(inspector-apis,
[  --disable-inspector-apis Disable the DOM inspection APIs ],
    MOZ_NO_INSPECTOR_APIS=1,
    MOZ_NO_INSPECTOR_APIS= )

dnl ========================================================
dnl XMLExtras
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(xmlextras,
[  --disable-xmlextras Disable XMLExtras such as XPointer support ],
    MOZ_XMLEXTRAS=,
    MOZ_XMLEXTRAS=1 )

dnl ========================================================
dnl Webservices
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(webservices,
[  --enable-webservices Enable Webservices/SOAP support ],
    MOZ_WEBSERVICES=1,
    MOZ_WEBSERVICES= )

dnl ========================================================
dnl Pref extensions (autoconfig and system-pref)
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(pref-extensions,
[  --disable-pref-extensions
                          Disable pref extensions such as autoconfig and
                          system-pref],
  MOZ_PREF_EXTENSIONS=,
  MOZ_PREF_EXTENSIONS=1 )

dnl ========================================================
dnl = Universalchardet
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(universalchardet,
[  --disable-universalchardet
                          Disable universal encoding detection],
  MOZ_UNIVERSALCHARDET=,
  MOZ_UNIVERSALCHARDET=1 )

dnl ========================================================
dnl JavaXPCOM
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(javaxpcom,
[  --enable-javaxpcom
                          Enable Java-XPCOM bridge],
    MOZ_JAVAXPCOM=1,
    MOZ_JAVAXPCOM= )

if test -n "${MOZ_JAVAXPCOM}"; then
  case "$host_os" in
    cygwin*|msvc*|mks*)
      if test -n "$JAVA_HOME"; then
        JAVA_HOME=`cygpath -u \`cygpath -m -s "$JAVA_HOME"\``
      fi
      ;;
    *mingw*)
      if test -n "$JAVA_HOME"; then
        JAVA_HOME=`cd "$JAVA_HOME" && pwd`
      fi
      ;;
  esac

  if test -n "${JAVA_INCLUDE_PATH}"; then
    dnl Make sure jni.h exists in the given include path.
    if test ! -f "$JAVA_INCLUDE_PATH/jni.h"; then
      AC_MSG_ERROR([jni.h was not found in given include path $JAVA_INCLUDE_PATH.])
    fi
  else
    case "$target_os" in
      darwin*)
        dnl Default to java system location
        JAVA_INCLUDE_PATH=/System/Library/Frameworks/JavaVM.framework/Headers
        ;;
      *)
        dnl Try $JAVA_HOME
        JAVA_INCLUDE_PATH="$JAVA_HOME/include"
        ;;
    esac
    if test ! -f "$JAVA_INCLUDE_PATH/jni.h"; then
      AC_MSG_ERROR([The header jni.h was not found.  Set \$JAVA_HOME to your java sdk directory, use --with-java-bin-path={java-bin-dir}, or reconfigure with --disable-javaxpcom.])
    fi
  fi

  if test -n "${JAVA_BIN_PATH}"; then
    dnl Look for javac and jar in the specified path.
    JAVA_PATH="$JAVA_BIN_PATH"
  else
    dnl No path specified, so look for javac and jar in $JAVA_HOME & $PATH.
    JAVA_PATH="$JAVA_HOME/bin:$PATH"
  fi

  AC_PATH_PROG(JAVA, java, :, [$JAVA_PATH])
  AC_PATH_PROG(JAVAC, javac, :, [$JAVA_PATH])
  AC_PATH_PROG(JAR, jar, :, [$JAVA_PATH])
  if test -z "$JAVA" || test "$JAVA" = ":" || test -z "$JAVAC" || test "$JAVAC" = ":" || test -z "$JAR" || test "$JAR" = ":"; then
    AC_MSG_ERROR([The programs java, javac and jar were not found.  Set \$JAVA_HOME to your java sdk directory, use --with-java-bin-path={java-bin-dir}, or reconfigure with --disable-javaxpcom.])
  fi
fi

dnl ========================================================
dnl = Breakpad crash reporting (on by default on supported platforms)
dnl ========================================================

if (test "$OS_ARCH" = "WINNT" -a -z "$GNU_CC" \
    || test "$OS_ARCH" = "Darwin" \
    || test "$OS_ARCH" = "Linux" -a "$CPU_ARCH" = "x86") \
   && test -z "$HAVE_64BIT_OS"; then
   MOZ_CRASHREPORTER=1
fi

MOZ_ARG_DISABLE_BOOL(crashreporter,
[  --disable-crashreporter          Disable breakpad crash reporting],
    MOZ_CRASHREPORTER=,
    MOZ_CRASHREPORTER=1)

if test -n "$MOZ_CRASHREPORTER"; then
   AC_DEFINE(MOZ_CRASHREPORTER)

  if test "$OS_ARCH" = "Linux" && \
     test -z "$SKIP_LIBRARY_CHECKS"; then
     _SAVE_LDFLAGS=$LDFLAGS
     LDFLAGS="$LDFLAGS -lcurl"
     AC_CACHE_CHECK(for libcurl,
                    ac_cv_have_libcurl,
                    [AC_TRY_LINK([#include <curl/curl.h>],
                                 [curl_easy_init();],
                                 ac_cv_have_libcurl="yes",
                                 ac_cv_have_libcurl="no")])
    if test "$ac_cv_have_libcurl" = "no"; then
        AC_MSG_ERROR([Couldn't find libcurl, which is required for the crash reporter.  Use --disable-crashreporter to disable the crash reporter.])
    fi
    LDFLAGS=$_SAVE_LDFLAGS
  fi
fi

dnl ========================================================
dnl = Build mochitest JS/DOM tests (on by default)
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(mochitest,
[  --disable-mochitest        Disable mochitest harness],
    MOZ_MOCHITEST=,
    MOZ_MOCHITEST=1 )

dnl ========================================================
dnl = Enable compilation of specific extension modules
dnl ========================================================

MOZ_ARG_ENABLE_STRING(extensions,
[  --enable-extensions     Enable extensions],
[ for option in `echo $enableval | sed 's/,/ /g'`; do
    if test "$option" = "yes" || test "$option" = "all"; then
        MOZ_EXTENSIONS="$MOZ_EXTENSIONS $MOZ_EXTENSIONS_ALL"
    elif test "$option" = "no" || test "$option" = "none"; then
        MOZ_EXTENSIONS=""
    elif test "$option" = "default"; then
        MOZ_EXTENSIONS="$MOZ_EXTENSIONS $MOZ_EXTENSIONS_DEFAULT"
    elif test `echo "$option" | grep -c \^-` != 0; then
        option=`echo $option | sed 's/^-//'`
        MOZ_EXTENSIONS=`echo "$MOZ_EXTENSIONS" | sed "s/ ${option}//"`
    else
        MOZ_EXTENSIONS="$MOZ_EXTENSIONS $option"
    fi
done],
    MOZ_EXTENSIONS="$MOZ_EXTENSIONS_DEFAULT")

if test -z "$MOZ_ENABLE_GNOMEVFS" && test `echo "$MOZ_EXTENSIONS" | grep -c gnomevfs` -ne 0; then
    # Suppress warning on non-X11 platforms
    if test -n "$MOZ_X11"; then
        AC_MSG_WARN([Cannot build gnomevfs without required libraries. Removing gnomevfs from MOZ_EXTENSIONS.])
    fi
    MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|gnomevfs||'`
fi

if test -z "$MOZ_JSDEBUGGER" && test `echo "$MOZ_EXTENSIONS" | grep -c venkman` -ne 0; then
    AC_MSG_WARN([Cannot build venkman without JavaScript debug library. Removing venkman from MOZ_EXTENSIONS.])
    MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|venkman||'`
fi

dnl This might be temporary: build tridentprofile only on Windows
if test `echo "$MOZ_EXTENSIONS" | grep -c tridentprofile` -ne 0 && test "$OS_ARCH" != "WINNT"; then
    AC_MSG_WARN([tridentprofile extension works only on Windows at this time. Removing tridentprofile from MOZ_EXTENSIONS.])
    MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|tridentprofile||'`
fi

dnl cookie must be built before tridentprofile. put it at list's end.
if test `echo "$MOZ_EXTENSIONS" | grep -c tridentprofile` -ne 0; then
  MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|tridentprofile||'`
  MOZ_EXTENSIONS="$MOZ_EXTENSIONS tridentprofile"
fi

dnl schema-validation requires webservices
if test -z "$MOZ_WEBSERVICES" && test `echo "$MOZ_EXTENSIONS" | grep -c schema-validation` -ne 0; then
    AC_MSG_WARN([Cannot build schema-validation without webservices.  Removing schema-validation from MOZ_EXTENSIONS.])
    MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|schema-validation||g'`
fi

dnl xforms requires xtf and webservices and schema-validation
if test -z "$MOZ_XTF" && test `echo "$MOZ_EXTENSIONS" | grep -c xforms` -ne 0; then
    AC_MSG_WARN([Cannot build XForms without XTF support.  Removing XForms from MOZ_EXTENSIONS.])
    MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|xforms||g'`
fi
if test -z "$MOZ_WEBSERVICES" && test `echo "$MOZ_EXTENSIONS" | grep -c xforms` -ne 0; then
    AC_MSG_WARN([Cannot build XForms without webservices.  Removing XForms from MOZ_EXTENSIONS.])
    MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|xforms||g'`
fi

if test `echo "$MOZ_EXTENSIONS" | grep -c xforms` -ne 0 && test `echo "$MOZ_EXTENSIONS" | grep -c schema-validation` -eq 0; then
    AC_MSG_WARN([Cannot build XForms without schema validation.  Removing XForms from MOZ_EXTENSIONS.])
    MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|xforms||g'`
fi

if test `echo "$MOZ_EXTENSIONS" | grep -c auth` -ne 0; then
    AC_MSG_WARN([auth is no longer an extension, use --disable-negotiateauth to disable.])
    MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|auth||g'`
fi

if test `echo "$MOZ_EXTENSIONS" | grep -c xmlextras` -ne 0; then
    AC_MSG_WARN([xmlextras is no longer an extension, use --disable-xmlextras to disable.])
    MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|xmlextras||g'`
fi

if test `echo "$MOZ_EXTENSIONS" | grep -c 'cookie\|permissions'` -ne 0; then
    AC_MSG_WARN([cookie and permissions are no longer extensions, use --disable-permissions to disable.])
    MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|cookie||g; s|permissions||g'`
fi

if test `echo "$MOZ_EXTENSIONS" | grep -c webservices` -ne 0; then
    AC_MSG_WARN([webservices is no longer an extension, use --disable-webservices to disable.])
    MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|webservices||g'`
fi

if test `echo "$MOZ_EXTENSIONS" | grep -c pref` -ne 0; then
    AC_MSG_WARN([pref is no longer an extension, use --disable-pref-extensions to disable.])
    MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|pref||g'`
fi

if test `echo "$MOZ_EXTENSIONS" | grep -c universalchardet` -ne 0; then
    AC_MSG_WARN([universalchardet is no longer an extension, use --disable-universalchardet to disable.])
    MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|universalchardet||g'`
fi

if test `echo "$MOZ_EXTENSIONS" | grep -c java` -ne 0; then
    AC_MSG_WARN([java is no longer an extension, use --enable-javaxpcom to enable.])
    MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|java||g'`
fi

if test `echo "$MOZ_EXTENSIONS" | grep -c spellcheck` -ne 0; then
    AC_MSG_WARN([spellcheck is no longer an extension.])
    MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|spellcheck||g'`
fi

if test -n "$MOZ_NO_XPCOM_OBSOLETE" && test `echo "$MOZ_EXTENSIONS" | grep -c sroaming` -ne 0; then
    AC_MSG_WARN([Cannot currently build sroaming without xpcom obsolete -- bug 249343. Removing sroaming from MOZ_EXTENSIONS.])
    MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's|sroaming||'`
fi

dnl Remove dupes
MOZ_EXTENSIONS=`${PERL} ${srcdir}/build/unix/uniq.pl ${MOZ_EXTENSIONS}`

dnl Ensure every extension exists, to avoid mostly-inscrutable error messages
dnl when trying to build a non-existent extension.
for extension in $MOZ_EXTENSIONS; do
    if test ! -d "${srcdir}/extensions/${extension}"; then
        AC_MSG_ERROR([Unrecognized extension provided to --enable-extensions: ${extension}.])
    fi
done


dnl ========================================================
dnl Image decoders
dnl ========================================================
case "$MOZ_WIDGET_TOOLKIT" in
beos|windows|os2|mac|cocoa)
    ;;
*)
    if test -z "$MOZ_ENABLE_GNOMEUI"; then
       MOZ_IMG_DECODERS_DEFAULT=`echo $MOZ_IMG_DECODERS_DEFAULT | sed -e 's|icon||'`                
    fi
    ;;
esac

MOZ_ARG_ENABLE_STRING(image-decoders,
[  --enable-image-decoders[={mod1,mod2,default,all,none}]
                          Enable specific image decoders],
[ for option in `echo $enableval | sed 's/,/ /g'`; do
    if test "$option" = "yes" || test "$option" = "all"; then
        MOZ_IMG_DECODERS="$MOZ_IMG_DECODERS $MOZ_IMG_DECODERS_DEFAULT"
    elif test "$option" = "no" || test "$option" = "none"; then
        MOZ_IMG_DECODERS=""
    elif test "$option" = "default"; then
        MOZ_IMG_DECODERS="$MOZ_IMG_DECODERS $MOZ_IMG_DECODERS_DEFAULT"
    elif test `echo "$option" | grep -c \^-` != 0; then
        option=`echo $option | sed 's/^-//'`
        MOZ_IMG_DECODERS=`echo "$MOZ_IMG_DECODERS" | sed "s/ ${option}//"`
    else
        MOZ_IMG_DECODERS="$MOZ_IMG_DECODERS $option"
    fi
done],
    MOZ_IMG_DECODERS="$MOZ_IMG_DECODERS_DEFAULT")

if test `echo "$MOZ_IMG_DECODERS" | grep -c png` -ne 0; then
    MOZ_PNG_CFLAGS="$MOZ_PNG_CFLAGS -DMOZ_PNG_READ"
    AC_MSG_CHECKING([if pnggccrd.c can be compiled without PNG_NO_MMX_CODE])
    AC_TRY_COMPILE([#define MOZ_PNG_READ 1
                    #include "$_topsrcdir/modules/libimg/png/pnggccrd.c"],,
                    _results=yes,
                    _results=no)
    AC_MSG_RESULT([$_results])
    if test "$_results" = "no"; then
        MOZ_PNG_CFLAGS="$MOZ_PNG_CFLAGS -DPNG_NO_MMX_CODE"
    fi
fi

dnl Dupes are removed in the encoder section because it will also add decoders

dnl ========================================================
dnl Image encoders
dnl ========================================================
MOZ_ARG_ENABLE_STRING(image-encoders,
[  --enable-image-encoders[={mod1,mod2,default,all,none}]
                          Enable specific image encoders],
[ for option in `echo $enableval | sed 's/,/ /g'`; do
    if test "$option" = "yes" || test "$option" = "all"; then
        addencoder="$MOZ_IMG_ENCODERS_DEFAULT"
    elif test "$option" = "no" || test "$option" = "none"; then
        MOZ_IMG_ENCODERS=""
        addencoder=""
    elif test "$option" = "default"; then
        addencoder="$MOZ_IMG_ENCODERS_DEFAULT"
    elif test `echo "$option" | grep -c \^-` != 0; then
        option=`echo $option | sed 's/^-//'`
        addencoder=`echo "$MOZ_IMG_ENCODERS" | sed "s/ ${option}//"`
    else
        addencoder="$option"
    fi
    MOZ_IMG_ENCODERS="$MOZ_IMG_ENCODERS $addencoder"
done],
    MOZ_IMG_ENCODERS="$MOZ_IMG_ENCODERS_DEFAULT")

if test `echo "$MOZ_IMG_ENCODERS" | grep -c png` -ne 0; then
    MOZ_PNG_CFLAGS="$MOZ_PNG_CFLAGS -DMOZ_PNG_WRITE"
fi

dnl Remove dupes
MOZ_IMG_DECODERS=`${PERL} ${srcdir}/build/unix/uniq.pl ${MOZ_IMG_DECODERS}`
MOZ_IMG_ENCODERS=`${PERL} ${srcdir}/build/unix/uniq.pl ${MOZ_IMG_ENCODERS}`

dnl ========================================================
dnl experimental ldap features
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(ldap-experimental,
[  --enable-ldap-experimental
                          Enable LDAP experimental features],
    MOZ_LDAP_XPCOM_EXPERIMENTAL=1,
    MOZ_LDAP_XPCOM_EXPERIMENTAL=)

dnl ========================================================
dnl MathML on by default
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(mathml,
[  --disable-mathml        Disable MathML support],
    MOZ_MATHML=,
    MOZ_MATHML=1 )
if test "$MOZ_MATHML"; then
  AC_DEFINE(MOZ_MATHML)
fi

dnl ========================================================
dnl Canvas
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(canvas,
[  --disable-canvas          Disable html:canvas feature],
    MOZ_ENABLE_CANVAS=,
    MOZ_ENABLE_CANVAS=1 )
if test -n "$MOZ_ENABLE_CANVAS"; then
    AC_DEFINE(MOZ_ENABLE_CANVAS)
fi
AC_SUBST(MOZ_ENABLE_CANVAS)

dnl ========================================================
dnl SVG
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(svg,
[  --disable-svg            Disable SVG support],
    MOZ_SVG=,
    MOZ_SVG=1 )
if test -n "$MOZ_SVG"; then
  if test -z "$MOZ_ENABLE_CAIRO_GFX"; then
    AC_MSG_ERROR([SVG requires cairo gfx])
  else
    AC_DEFINE(MOZ_SVG)
  fi
fi

MOZ_SVG_FOREIGNOBJECT=$MOZ_ENABLE_CAIRO_GFX
dnl ========================================================
dnl SVG <foreignObject>
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(svg-foreignobject,
   [  --disable-svg-foreignobject
                        Disable SVG <foreignObject> support],
   MOZ_SVG_FOREIGNOBJECT=,
   MOZ_SVG_FOREIGNOBJECT=1 )
if test "$MOZ_SVG_FOREIGNOBJECT"; then
  if test -z "$MOZ_ENABLE_CAIRO_GFX"; then
    AC_MSG_ERROR([<foreignobject> requires cairo gfx])
  else
    if test "$MOZ_SVG"; then
      AC_DEFINE(MOZ_SVG_FOREIGNOBJECT)
    else
      MOZ_SVG_FOREIGNOBEJCT=
    fi
  fi
fi

dnl ========================================================
dnl Installer
dnl ========================================================
case "$target_os" in
    aix*|solaris*|linux*|msvc*|mks*|cygwin*|mingw*|os2*|wince*)
        MOZ_INSTALLER=1
        ;;
esac

MOZ_ARG_DISABLE_BOOL(installer,
[  --disable-installer     Disable building of installer],
    MOZ_INSTALLER=,
    MOZ_INSTALLER=1 )
if test -n "$MOZ_INSTALLER" -a -n "$MOZ_XUL_APP" -a "$OS_ARCH" = "WINNT"; then
    # Disable installer for Windows builds that use the new toolkit if NSIS
    # isn't in the path.
    AC_PATH_PROGS(MAKENSIS, makensis)
    if test -z "$MAKENSIS" || test "$MAKENSIS" = ":"; then
        AC_MSG_ERROR([To build the installer makensis is required in your path. To build without the installer reconfigure using --disable-installer.])
    fi
    # The Windows build for NSIS requires the iconv command line utility to
    # convert the charset of the locale files.
    AC_PATH_PROGS(HOST_ICONV, $HOST_ICONV "iconv", "")
    if test -z "$HOST_ICONV"; then
        AC_MSG_ERROR([To build the installer iconv is required in your path. To build without the installer reconfigure using --disable-installer.])
    fi
fi

# Automatically disable installer if xpinstall isn't built
if test -z "$MOZ_XPINSTALL"; then
    MOZ_INSTALLER=
fi
AC_SUBST(MOZ_INSTALLER)

AC_MSG_CHECKING([for tar archiver])
AC_CHECK_PROGS(TAR, gnutar gtar tar, "")
if test -z "$TAR"; then
    AC_MSG_ERROR([no tar archiver found in \$PATH])
fi
AC_MSG_RESULT([$TAR])
AC_SUBST(TAR)

dnl ========================================================
dnl Updater
dnl ========================================================

MOZ_ARG_DISABLE_BOOL(updater,
[  --disable-updater       Disable building of updater],
    MOZ_UPDATER=,
    MOZ_UPDATER=1 )
# The Windows build requires the iconv command line utility
# in order to build the updater.
case "$target_os" in
    msvc*|mks*|cygwin*|mingw*|wince*)
        if test -n "$MOZ_UPDATER"; then
            AC_MSG_CHECKING([for iconv])
            AC_CHECK_PROGS(HOST_ICONV, $HOST_ICONV "iconv", "")
            if test -z "$HOST_ICONV"; then
                AC_MSG_ERROR([iconv not found in \$PATH])
            fi
        fi
        ;;
esac
AC_SUBST(MOZ_UPDATER)

# app update channel is 'default' when not supplied.
MOZ_ARG_ENABLE_STRING([update-channel],
[  --enable-update-channel=CHANNEL
                           Select application update channel (default=default)],
    MOZ_UPDATE_CHANNEL=`echo $enableval | tr A-Z a-z`)

if test -z "$MOZ_UPDATE_CHANNEL"; then
    MOZ_UPDATE_CHANNEL=default
fi
AC_DEFINE_UNQUOTED(MOZ_UPDATE_CHANNEL, $MOZ_UPDATE_CHANNEL)

# tools/update-packaging is not checked out by default.
MOZ_ARG_ENABLE_BOOL(update-packaging,
[  --enable-update-packaging
                           Enable tools/update-packaging],
    MOZ_UPDATE_PACKAGING=1,
    MOZ_UPDATE_PACKAGING= )
AC_SUBST(MOZ_UPDATE_PACKAGING)

dnl ========================================================
dnl ActiveX
dnl ========================================================

MOZ_ARG_DISABLE_BOOL(xpconnect-idispatch,
[  --disable-xpconnect-idispatch
                          Disable building of xpconnect support for IDispatch
                          (win32 only)],
    XPC_IDISPATCH_SUPPORT=,
    XPC_IDISPATCH_SUPPORT=1)
AC_SUBST(XPC_IDISPATCH_SUPPORT)

MOZ_ARG_DISABLE_BOOL(activex,
[  --disable-activex       Disable building of ActiveX control (win32 only)],
    MOZ_NO_ACTIVEX_SUPPORT=1,
    MOZ_NO_ACTIVEX_SUPPORT= )
AC_SUBST(MOZ_NO_ACTIVEX_SUPPORT)

MOZ_ARG_DISABLE_BOOL(activex-scripting,
[  --disable-activex-scripting
                          Disable building of ActiveX scripting support (win32)],
    MOZ_ACTIVEX_SCRIPTING_SUPPORT=,
    MOZ_ACTIVEX_SCRIPTING_SUPPORT=1)
AC_SUBST(MOZ_ACTIVEX_SCRIPTING_SUPPORT)

if test -n "$MOZ_NO_ACTIVEX_SUPPORT" -a -n "$MOZ_ACTIVEX_SCRIPTING_SUPPORT";
then
    AC_MSG_ERROR([Cannot enable ActiveX scripting support when ActiveX support is disabled.])
fi

dnl ========================================================
dnl leaky
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(leaky,
[  --enable-leaky          Build leaky memory tool],
    MOZ_LEAKY=1,
    MOZ_LEAKY=)


dnl ========================================================
dnl xpctools
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(xpctools,
[  --enable-xpctools       Build JS profiling tool],
    MOZ_XPCTOOLS=1,
    MOZ_XPCTOOLS= )


dnl ========================================================
dnl build the tests by default
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(tests,
[  --disable-tests         Do not build test libraries & programs],
    ENABLE_TESTS=,
    ENABLE_TESTS=1 )

dnl ========================================================
dnl =
dnl = Module specific options
dnl =
dnl ========================================================
MOZ_ARG_HEADER(Individual module options)

dnl ========================================================
dnl = Enable Lea malloc in xpcom. OFF by default.
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(xpcom-lea,
[  --enable-xpcom-lea      Use Lea malloc in xpcom ],
    XPCOM_USE_LEA=1,
    XPCOM_USE_LEA= )
if test -n "$XPCOM_USE_LEA"; then
    AC_DEFINE(XPCOM_USE_LEA)
fi

dnl ========================================================
dnl = Enable places (new history/bookmarks)
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(places,
[  --enable-places        Enable 'places' bookmark/history implementation],
    MOZ_PLACES=1,
    MOZ_PLACES= )
if test -n "$MOZ_PLACES"; then
    AC_DEFINE(MOZ_PLACES)
    if test -z "$MOZ_MAIL_NEWS"; then
      MOZ_MORK=
    fi
    MOZ_MORKREADER=1
else
  if test "$MOZ_BUILD_APP" = "browser"; then
    AC_MSG_ERROR([Cannot build Firefox with --disable-places.])
  fi
fi

dnl ========================================================
dnl = Disable feed handling components
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(feeds,
[  --disable-feeds        Disable feed handling and processing components],
    MOZ_FEEDS=,
    MOZ_FEEDS=1 )
if test -n "$MOZ_FEEDS"; then
    AC_DEFINE(MOZ_FEEDS)
else
    if test "$MOZ_BUILD_APP" = "browser"; then
        AC_MSG_ERROR([Cannot build Firefox with --disable-feeds.])
    fi
fi

dnl ========================================================
dnl = Enable mozStorage
dnl = XXX need to implement --with-system-sqlite3 (see bug 263381)
dnl ========================================================
dnl Implicitly enabled by default if building calendar or places
MOZ_ARG_ENABLE_BOOL(storage,
[  --enable-storage        Enable mozStorage module and related components],
    MOZ_STORAGE=1,
    MOZ_STORAGE= )
if test -n "$MOZ_STORAGE"; then
    AC_DEFINE(MOZ_STORAGE)
fi

dnl ========================================================
dnl = Enable safe browsing (anti-phishing)
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(safe-browsing,
[  --enable-safe-browsing        Enable safe browsing (anti-phishing) implementation],
    MOZ_SAFE_BROWSING=1,
    MOZ_SAFE_BROWSING= )
if test -n "$MOZ_SAFE_BROWSING"; then
    AC_DEFINE(MOZ_SAFE_BROWSING)
fi
AC_SUBST(MOZ_SAFE_BROWSING)

dnl ========================================================
dnl = Enable url-classifier
dnl ========================================================
dnl Implicitly enabled by default if building with safe-browsing
if test -n "$MOZ_SAFE_BROWSING"; then
    MOZ_URL_CLASSIFIER=1
fi
MOZ_ARG_ENABLE_BOOL(url-classifier,
[  --enable-url-classifier        Enable url classifier module],
    MOZ_URL_CLASSIFIER=1,
    MOZ_URL_CLASSIFIER= )
if test -n "$MOZ_URL_CLASSIFIER"; then
    AC_DEFINE(MOZ_URL_CLASSIFIER)
fi
AC_SUBST(MOZ_URL_CLASSIFIER)

dnl ========================================================
dnl = Disable zipwriter
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(zipwriter,
[  --disable-zipwriter             Disable zipwriter component],
    MOZ_ZIPWRITER=,
    MOZ_ZIPWRITER=1 )
AC_SUBST(MOZ_ZIPWRITER)

dnl ========================================================
dnl = Enable Ultrasparc specific optimizations for JS
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(js-ultrasparc,
[  --enable-js-ultrasparc  Use UltraSPARC optimizations in JS],
    JS_ULTRASPARC_OPTS=1,
    JS_ULTRASPARC_OPTS= )

dnl only enable option for ultrasparcs
if test `echo "$target_os" | grep -c \^solaris 2>/dev/null` = 0 -o \
    "$OS_TEST" != "sun4u"; then
    JS_ULTRASPARC_OPTS=
fi
AC_SUBST(JS_ULTRASPARC_OPTS)

dnl ========================================================
dnl =
dnl = Feature options that require extra sources to be pulled
dnl =
dnl ========================================================
dnl MOZ_ARG_HEADER(Features that require extra sources)

dnl ========================================================
dnl =
dnl = Debugging Options
dnl = 
dnl ========================================================
MOZ_ARG_HEADER(Debugging and Optimizations)

dnl ========================================================
dnl = Disable building with debug info.
dnl = Debugging is OFF by default
dnl ========================================================
if test -z "$MOZ_DEBUG_FLAGS"
then
    case "$target" in
    *-irix*)
        if test "$GNU_CC"; then
            GCC_VERSION=`$CC -v 2>&1 | awk '/version/ { print $3 }'`
            case "$GCC_VERSION" in
            2.95.*)
                MOZ_DEBUG_FLAGS=""
                ;;
            *)
                MOZ_DEBUG_FLAGS="-g"
                ;;
            esac
        else
            MOZ_DEBUG_FLAGS="-g"
        fi
        ;;
    *)
    	MOZ_DEBUG_FLAGS="-g"
        ;;
    esac
fi

MOZ_ARG_ENABLE_STRING(debug,
[  --enable-debug[=DBG]    Enable building with developer debug info
                          (Using compiler flags DBG)],
[ if test "$enableval" != "no"; then
    MOZ_DEBUG=1
    if test -n "$enableval" && test "$enableval" != "yes"; then
        MOZ_DEBUG_FLAGS=`echo $enableval | sed -e 's|\\\ | |g'`
    fi
  else
    MOZ_DEBUG=
  fi ],
  MOZ_DEBUG=)

MOZ_DEBUG_ENABLE_DEFS="-DDEBUG -D_DEBUG"
 case "${target_os}" in
    beos*)
        MOZ_DEBUG_ENABLE_DEFS="$MOZ_DEBUG_ENABLE_DEFS -DDEBUG_${USER}"
        ;;
    msvc*|mks*|cygwin*|mingw*|os2*|wince*)
        MOZ_DEBUG_ENABLE_DEFS="$MOZ_DEBUG_ENABLE_DEFS -DDEBUG_`echo ${USERNAME} | sed -e 's| |_|g'`"
        ;;
    *) 
        MOZ_DEBUG_ENABLE_DEFS="$MOZ_DEBUG_ENABLE_DEFS -DDEBUG_`$WHOAMI`"
        ;;
  esac
MOZ_DEBUG_ENABLE_DEFS="$MOZ_DEBUG_ENABLE_DEFS -DTRACING"

MOZ_DEBUG_DISABLE_DEFS="-DNDEBUG -DTRIMMED"

if test -n "$MOZ_DEBUG"; then
    AC_MSG_CHECKING([for valid debug flags])
    _SAVE_CFLAGS=$CFLAGS
    CFLAGS="$CFLAGS $MOZ_DEBUG_FLAGS"
    AC_TRY_COMPILE([#include <stdio.h>], 
        [printf("Hello World\n");],
        _results=yes,
        _results=no)
    AC_MSG_RESULT([$_results])
    if test "$_results" = "no"; then
        AC_MSG_ERROR([These compiler flags are invalid: $MOZ_DEBUG_FLAGS])
    fi
    CFLAGS=$_SAVE_CFLAGS
fi

dnl ========================================================
dnl = Enable code optimization. ON by default.
dnl ========================================================
if test -z "$MOZ_OPTIMIZE_FLAGS"; then
	MOZ_OPTIMIZE_FLAGS="-O"
fi

MOZ_ARG_ENABLE_STRING(optimize,
[  --disable-optimize      Disable compiler optimization
  --enable-optimize=[OPT] Specify compiler optimization flags [OPT=-O]],
[ if test "$enableval" != "no"; then
    MOZ_OPTIMIZE=1
    if test -n "$enableval" && test "$enableval" != "yes"; then
        MOZ_OPTIMIZE_FLAGS=`echo "$enableval" | sed -e 's|\\\ | |g'`
        MOZ_OPTIMIZE=2
    fi
else
    MOZ_OPTIMIZE=
fi ], MOZ_OPTIMIZE=1)

if test "$COMPILE_ENVIRONMENT"; then
if test -n "$MOZ_OPTIMIZE"; then
    AC_MSG_CHECKING([for valid optimization flags])
    _SAVE_CFLAGS=$CFLAGS
    CFLAGS="$CFLAGS $MOZ_OPTIMIZE_FLAGS"
    AC_TRY_COMPILE([#include <stdio.h>], 
        [printf("Hello World\n");],
        _results=yes,
        _results=no)
    AC_MSG_RESULT([$_results])
    if test "$_results" = "no"; then
        AC_MSG_ERROR([These compiler flags are invalid: $MOZ_OPTIMIZE_FLAGS])
    fi
    CFLAGS=$_SAVE_CFLAGS
fi
fi # COMPILE_ENVIRONMENT

AC_SUBST(MOZ_OPTIMIZE)
AC_SUBST(MOZ_OPTIMIZE_FLAGS)
AC_SUBST(MOZ_OPTIMIZE_LDFLAGS)

dnl ========================================================
dnl = Enable/disable debug for specific modules only
dnl =   module names beginning with ^ will be disabled 
dnl ========================================================
MOZ_ARG_ENABLE_STRING(debug-modules,
[  --enable-debug-modules  Enable/disable debug info for specific modules],
[ MOZ_DEBUG_MODULES=`echo $enableval| sed 's/,/ /g'` ] )

dnl ========================================================
dnl = Enable/disable generation of debugger info for specific modules only
dnl =    the special module name ALL_MODULES can be used to denote all modules
dnl =    module names beginning with ^ will be disabled
dnl ========================================================
MOZ_ARG_ENABLE_STRING(debugger-info-modules,
[  --enable-debugger-info-modules
                          Enable/disable debugger info for specific modules],
[ for i in `echo $enableval | sed 's/,/ /g'`; do
      dnl note that the list of module names is reversed as it is copied
      dnl this is important, as it will allow config.mk to interpret stuff like
      dnl "^ALL_MODULES xpcom" properly
      if test "$i" = "no"; then
        i="^ALL_MODULES"
      fi
      if test "$i" = "yes"; then
        i="ALL_MODULES"
      fi
      MOZ_DBGRINFO_MODULES="$i $MOZ_DBGRINFO_MODULES";
    done ])

dnl ========================================================
dnl Enable garbage collector
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(boehm,
[  --enable-boehm          Enable the Boehm Garbage Collector],
    GC_LEAK_DETECTOR=1,
    GC_LEAK_DETECTOR= )
if test -n "$GC_LEAK_DETECTOR"; then
    AC_DEFINE(GC_LEAK_DETECTOR)
fi

dnl ========================================================
dnl Disable runtime logging checks
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(logging,
[  --disable-logging       Disable logging facilities],
    NS_DISABLE_LOGGING=1,
    NS_DISABLE_LOGGING= )
if test "$NS_DISABLE_LOGGING"; then
    AC_DEFINE(NS_DISABLE_LOGGING)
else
    AC_DEFINE(MOZ_LOGGING)
fi

dnl ========================================================
dnl = dnl This will enable logging of addref, release, ctor, dtor.
dnl ========================================================
_ENABLE_LOGREFCNT=42
MOZ_ARG_ENABLE_BOOL(logrefcnt,
[  --enable-logrefcnt      Enable logging of refcounts (default=debug) ],
    _ENABLE_LOGREFCNT=1,
    _ENABLE_LOGREFCNT= )
if test "$_ENABLE_LOGREFCNT" = "1"; then
    AC_DEFINE(FORCE_BUILD_REFCNT_LOGGING)
elif test -z "$_ENABLE_LOGREFCNT"; then
    AC_DEFINE(NO_BUILD_REFCNT_LOGGING)
fi

dnl ========================================================
dnl = Use malloc wrapper lib
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(wrap-malloc,
[  --enable-wrap-malloc    Wrap malloc calls (gnu linker only)],
    _WRAP_MALLOC=1,
    _WRAP_MALLOC= )

if test -n "$_WRAP_MALLOC"; then
    if test "$GNU_CC"; then
    WRAP_MALLOC_CFLAGS="${LDFLAGS} -Wl,--wrap -Wl,malloc -Wl,--wrap -Wl,free -Wl,--wrap -Wl,realloc -Wl,--wrap -Wl,__builtin_new -Wl,--wrap -Wl,__builtin_vec_new -Wl,--wrap -Wl,__builtin_delete -Wl,--wrap -Wl,__builtin_vec_delete -Wl,--wrap -Wl,PR_Free -Wl,--wrap -Wl,PR_Malloc -Wl,--wrap -Wl,PR_Calloc -Wl,--wrap -Wl,PR_Realloc"
    MKSHLIB='$(CXX) $(DSO_LDOPTS) $(WRAP_MALLOC_CFLAGS) -o $@'
    fi
fi

dnl ========================================================
dnl = Location of malloc wrapper lib
dnl ========================================================
MOZ_ARG_WITH_STRING(wrap-malloc,
[  --with-wrap-malloc=DIR  Location of malloc wrapper library],
    WRAP_MALLOC_LIB=$withval)

dnl ========================================================
dnl = Use Electric Fence
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(efence,
[  --enable-efence         Link with Electric Fence],
    _ENABLE_EFENCE=1,
    _ENABLE_EFENCE= )
if test -n "$_ENABLE_EFENCE"; then
    AC_CHECK_LIB(efence,malloc)
fi

dnl ========================================================
dnl jprof
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(jprof,
[  --enable-jprof          Enable jprof profiling tool (needs mozilla/tools/jprof)],
    MOZ_JPROF=1,
    MOZ_JPROF= )
if test -n "$MOZ_JPROF"; then
    AC_DEFINE(MOZ_JPROF)
fi


dnl ========================================================
dnl = Enable stripping of libs & executables
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(strip,
[  --enable-strip          Enable stripping of libs & executables ],
    ENABLE_STRIP=1,
    ENABLE_STRIP= )

dnl ========================================================
dnl = Enable stripping of libs & executables when packaging
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(install-strip,
[  --enable-install-strip  Enable stripping of libs & executables when packaging ],
    PKG_SKIP_STRIP= ,
    PKG_SKIP_STRIP=1)

dnl ========================================================
dnl = --enable-elf-dynstr-gc
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(elf-dynstr-gc,
[  --enable-elf-dynstr-gc  Enable elf dynstr garbage collector (opt builds only)],
    USE_ELF_DYNSTR_GC=1,
    USE_ELF_DYNSTR_GC= )

dnl ========================================================
dnl = --enable-old-abi-compat-wrappers
dnl ========================================================
dnl on x86 linux, the current builds of some popular plugins (notably
dnl flashplayer and real) expect a few builtin symbols from libgcc
dnl which were available in some older versions of gcc.  However,
dnl they're _NOT_ available in newer versions of gcc (eg 3.1), so if
dnl we want those plugin to work with a gcc-3.1 built binary, we need
dnl to provide these symbols.  MOZ_ENABLE_OLD_ABI_COMPAT_WRAPPERS defaults
dnl to true on x86 linux, and false everywhere else.
dnl

MOZ_ARG_ENABLE_BOOL(old-abi-compat-wrappers,
[  --enable-old-abi-compat-wrappers
                          Support old GCC ABI symbols to ease the pain 
                          of the linux compiler change],
    MOZ_ENABLE_OLD_ABI_COMPAT_WRAPPERS=1,
    MOZ_ENABLE_OLD_ABI_COMPAT_WRAPPERS= )
if test "$COMPILE_ENVIRONMENT"; then
if test "$MOZ_ENABLE_OLD_ABI_COMPAT_WRAPPERS"; then
    AC_LANG_SAVE
    AC_LANG_CPLUSPLUS
    AC_CHECK_FUNCS(__builtin_vec_new __builtin_vec_delete __builtin_new __builtin_delete __pure_virtual)
    AC_LANG_RESTORE
    AC_DEFINE(MOZ_ENABLE_OLD_ABI_COMPAT_WRAPPERS)
fi
fi # COMPILE_ENVIRONMENT

dnl ========================================================
dnl = --enable-prebinding
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(prebinding,
[  --enable-prebinding     Enable prebinding (Mac OS X only)],
    USE_PREBINDING=1,
    USE_PREBINDING= )

dnl ========================================================
dnl = 
dnl = Profiling and Instrumenting
dnl = 
dnl ========================================================
MOZ_ARG_HEADER(Profiling and Instrumenting)

dnl ========================================================
dnl = Enable timeline service, which provides lightweight
dnl = instrumentation of mozilla for performance measurement.
dnl = Timeline is off by default.
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(timeline,
[  --enable-timeline       Enable timeline services ],
    MOZ_TIMELINE=1,
    MOZ_TIMELINE= )
if test -n "$MOZ_TIMELINE"; then
    AC_DEFINE(MOZ_TIMELINE)
fi

dnl ========================================================
dnl Turn on reflow counting
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(reflow-perf,
[  --enable-reflow-perf    Enable reflow performance tracing],
    MOZ_REFLOW_PERF=1,
    MOZ_REFLOW_PERF= )
if test -n "$MOZ_REFLOW_PREF"; then
    AC_DEFINE(MOZ_REFLOW_PREF)
fi
AC_SUBST(MOZ_REFLOW_PERF)

dnl ========================================================
dnl Enable performance metrics.
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(perf-metrics,
[  --enable-perf-metrics   Enable performance metrics],
    MOZ_PERF_METRICS=1,
    MOZ_PERF_METRICS= )
if test -n "$MOZ_PERF_METRICS"; then
    AC_DEFINE(MOZ_PERF_METRICS)
fi

dnl ========================================================
dnl Enable code size metrics.
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(codesighs,
[  --enable-codesighs      Enable code size analysis tools],
    _ENABLE_CODESIGHS=1,
    _ENABLE_CODESIGHS= )
if test -n "$_ENABLE_CODESIGHS"; then
    if test -d $srcdir/tools/codesighs; then 
        MOZ_MAPINFO=1
    else
        AC_MSG_ERROR([Codesighs directory $srcdir/tools/codesighs required.])
    fi
fi

dnl ========================================================
dnl = Enable trace malloc
dnl ========================================================
NS_TRACE_MALLOC=${MOZ_TRACE_MALLOC}
MOZ_ARG_ENABLE_BOOL(trace-malloc,
[  --enable-trace-malloc   Enable malloc tracing],
    NS_TRACE_MALLOC=1,
    NS_TRACE_MALLOC= )
if test "$NS_TRACE_MALLOC"; then
  # Please, Mr. Linker Man, don't take away our symbol names
  MOZ_COMPONENTS_VERSION_SCRIPT_LDFLAGS=
  USE_ELF_DYNSTR_GC=
  AC_DEFINE(NS_TRACE_MALLOC)
fi
AC_SUBST(NS_TRACE_MALLOC)

dnl ========================================================
dnl = Add support for Eazel profiler
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(eazel-profiler-support,
[  --enable-eazel-profiler-support
                          Enable Corel/Eazel profiler support],
    ENABLE_EAZEL_PROFILER=1,
    ENABLE_EAZEL_PROFILER= )
if test -n "$ENABLE_EAZEL_PROFILER"; then
    AC_DEFINE(ENABLE_EAZEL_PROFILER)
    USE_ELF_DYNSTR_GC=
    MOZ_COMPONENTS_VERSION_SCRIPT_LDFLAGS=
    EAZEL_PROFILER_CFLAGS="-g -O -gdwarf-2 -finstrument-functions -D__NO_STRING_INLINES  -D__NO_MATH_INLINES"
    EAZEL_PROFILER_LIBS="-lprofiler -lpthread"
fi

MOZ_ARG_ENABLE_STRING(profile-modules,
[  --enable-profile-modules
                          Enable/disable profiling for specific modules],
[ MOZ_PROFILE_MODULES=`echo $enableval| sed 's/,/ /g'` ] )

MOZ_ARG_ENABLE_BOOL(insure,
[  --enable-insure         Enable insure++ instrumentation (linux only)],
    _ENABLE_INSURE=1,
    _ENABLE_INSURE= )
if test -n "$_ENABLE_INSURE"; then
    MOZ_INSURE="insure"
    MOZ_INSURIFYING=1
    MOZ_INSURE_DIRS="."
    MOZ_INSURE_EXCLUDE_DIRS="config"
fi

MOZ_ARG_WITH_STRING(insure-dirs,
[  --with-insure-dirs=DIRS
                          Dirs to instrument with insure ],
    MOZ_INSURE_DIRS=$withval )

MOZ_ARG_WITH_STRING(insure-exclude-dirs,
[  --with-insure-exclude-dirs=DIRS
                          Dirs to not instrument with insure ],
    MOZ_INSURE_EXCLUDE_DIRS="config $withval" )

dnl ========================================================
dnl = Support for Quantify (Windows)
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(quantify,
[  --enable-quantify      Enable Quantify support (Windows only) ],
    MOZ_QUANTIFY=1,
    MOZ_QUANTIFY= )

dnl ========================================================
dnl = Support for demangling undefined symbols
dnl ========================================================
if test -z "$SKIP_LIBRARY_CHECKS"; then
    AC_LANG_SAVE
    AC_LANG_CPLUSPLUS
    AC_CHECK_FUNCS(__cxa_demangle, HAVE_DEMANGLE=1, HAVE_DEMANGLE=)
    AC_LANG_RESTORE
fi

# Demangle only for debug or trace-malloc builds
MOZ_DEMANGLE_SYMBOLS=
if test "$HAVE_DEMANGLE" -a "$HAVE_GCC3_ABI" && test "$MOZ_DEBUG" -o "$NS_TRACE_MALLOC"; then
    MOZ_DEMANGLE_SYMBOLS=1
    AC_DEFINE(MOZ_DEMANGLE_SYMBOLS)
fi
AC_SUBST(MOZ_DEMANGLE_SYMBOLS)


dnl ========================================================
dnl =
dnl = Misc. Options
dnl = 
dnl ========================================================
MOZ_ARG_HEADER(Misc. Options)

dnl ========================================================
dnl update xterm title
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(xterm-updates,
[  --enable-xterm-updates  Update XTERM titles with current command.],
    MOZ_UPDATE_XTERM=1,
    MOZ_UPDATE_XTERM= )

dnl =========================================================
dnl = Chrome format
dnl =========================================================
MOZ_ARG_ENABLE_STRING([chrome-format],
[  --enable-chrome-format=jar|flat|both|symlink
                          Select FORMAT of chrome files (default=jar)],
    MOZ_CHROME_FILE_FORMAT=`echo $enableval | tr A-Z a-z`)

if test -z "$MOZ_CHROME_FILE_FORMAT"; then
    MOZ_CHROME_FILE_FORMAT=jar
fi

if test "$MOZ_CHROME_FILE_FORMAT" != "jar" && 
    test "$MOZ_CHROME_FILE_FORMAT" != "flat" &&
    test "$MOZ_CHROME_FILE_FORMAT" != "symlink" &&
    test "$MOZ_CHROME_FILE_FORMAT" != "both"; then
    AC_MSG_ERROR([--enable-chrome-format must be set to either jar, flat, both, or symlink])
fi

dnl ========================================================
dnl = Define default location for MOZILLA_FIVE_HOME
dnl ========================================================
MOZ_ARG_WITH_STRING(default-mozilla-five-home,
[  --with-default-mozilla-five-home
                          Set the default value for MOZILLA_FIVE_HOME],
[ val=`echo $withval`
  AC_DEFINE_UNQUOTED(MOZ_DEFAULT_MOZILLA_FIVE_HOME,"$val") ])

dnl ========================================================
dnl = Location of the mozilla user directory (default is ~/.mozilla).],
dnl ========================================================
MOZ_ARG_WITH_STRING(user-appdir,
[  --with-user-appdir=DIR  Set user-specific appdir (default=.mozilla)],
[ val=`echo $withval`
if echo "$val" | grep "\/" >/dev/null; then
    AC_MSG_ERROR("Homedir must be single relative path.")
else 
    MOZ_USER_DIR="$val"
fi])

AC_DEFINE_UNQUOTED(MOZ_USER_DIR,"$MOZ_USER_DIR")

dnl ========================================================
dnl = Doxygen configuration
dnl ========================================================
dnl Use commas to specify multiple dirs to this arg
MOZ_DOC_INPUT_DIRS='./dist/include ./dist/idl'
MOZ_ARG_WITH_STRING(doc-input-dirs,
[  --with-doc-input-dirs=DIRS
                          Header/idl dirs to create docs from],
[ MOZ_DOC_INPUT_DIRS=`echo "$withval" | sed "s/,/ /g"` ] )
AC_SUBST(MOZ_DOC_INPUT_DIRS)

dnl Use commas to specify multiple dirs to this arg
MOZ_DOC_INCLUDE_DIRS='./dist/include ./dist/include/nspr'
MOZ_ARG_WITH_STRING(doc-include-dirs,
[  --with-doc-include-dirs=DIRS  
                          Include dirs to preprocess doc headers],
[ MOZ_DOC_INCLUDE_DIRS=`echo "$withval" | sed "s/,/ /g"` ] )
AC_SUBST(MOZ_DOC_INCLUDE_DIRS)

MOZ_DOC_OUTPUT_DIR='./dist/docs'
MOZ_ARG_WITH_STRING(doc-output-dir,
[  --with-doc-output-dir=DIR
                          Dir to generate docs into],
[ MOZ_DOC_OUTPUT_DIR=$withval ] )
AC_SUBST(MOZ_DOC_OUTPUT_DIR)

if test -z "$SKIP_COMPILER_CHECKS"; then
dnl ========================================================
dnl =
dnl = Compiler Options
dnl = 
dnl ========================================================
MOZ_ARG_HEADER(Compiler Options)

dnl ========================================================
dnl Check for gcc -pipe support
dnl ========================================================
AC_MSG_CHECKING([for gcc -pipe support])
if test -n "$GNU_CC" && test -n "$GNU_CXX" && test -n "$GNU_AS"; then
    echo '#include <stdio.h>' > dummy-hello.c
    echo 'int main() { printf("Hello World\n"); exit(0); }' >> dummy-hello.c
    ${CC} -S dummy-hello.c -o dummy-hello.s 2>&5
    cat dummy-hello.s | ${AS_BIN} -o dummy-hello.S - 2>&5
    if test $? = 0; then
        _res_as_stdin="yes"
    else
        _res_as_stdin="no"
    fi
    if test "$_res_as_stdin" = "yes"; then
        _SAVE_CFLAGS=$CFLAGS
        CFLAGS="$CFLAGS -pipe"
        AC_TRY_COMPILE( [ #include <stdio.h> ],
            [printf("Hello World\n");],
            [_res_gcc_pipe="yes"],
            [_res_gcc_pipe="no"] )
        CFLAGS=$_SAVE_CFLAGS
    fi
    if test "$_res_as_stdin" = "yes" && test "$_res_gcc_pipe" = "yes"; then
        _res="yes";
        CFLAGS="$CFLAGS -pipe"
        CXXFLAGS="$CXXFLAGS -pipe"
    else
        _res="no"
    fi
    rm -f dummy-hello.c dummy-hello.s dummy-hello.S dummy-hello a.out
    AC_MSG_RESULT([$_res])
else
    AC_MSG_RESULT([no])
fi

dnl pass -Wno-long-long to the compiler
MOZ_ARG_ENABLE_BOOL(long-long-warning,
[  --enable-long-long-warning 
                          Warn about use of non-ANSI long long type],
    _IGNORE_LONG_LONG_WARNINGS=,
    _IGNORE_LONG_LONG_WARNINGS=1)

if test "$_IGNORE_LONG_LONG_WARNINGS"; then
     _SAVE_CFLAGS="$CFLAGS"
     CFLAGS="$CFLAGS ${_COMPILER_PREFIX}-Wno-long-long"
     AC_MSG_CHECKING([whether compiler supports -Wno-long-long])
     AC_TRY_COMPILE([], [return(0);], 
	[ _WARNINGS_CFLAGS="${_WARNINGS_CFLAGS} ${_COMPILER_PREFIX}-Wno-long-long"
	  _WARNINGS_CXXFLAGS="${_WARNINGS_CXXFLAGS} ${_COMPILER_PREFIX}-Wno-long-long"
	  result="yes" ], result="no")
     AC_MSG_RESULT([$result])
     CFLAGS="$_SAVE_CFLAGS"
fi

dnl Test for profiling options
dnl Under gcc 3.3, use -fprofile-arcs/-fbranch-probabilities
dnl Under gcc 3.4+, use -fprofile-generate/-fprofile-use

_SAVE_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -fprofile-generate"

AC_MSG_CHECKING([whether C compiler supports -fprofile-generate])
AC_TRY_COMPILE([], [return 0;],
               [ PROFILE_GEN_CFLAGS="-fprofile-generate"
                 result="yes" ], result="no")
AC_MSG_RESULT([$result])

if test $result = "yes"; then
  PROFILE_USE_CFLAGS="-fprofile-use"
else
  CFLAGS="$_SAVE_CFLAGS -fprofile-arcs"
  AC_MSG_CHECKING([whether C compiler supports -fprofile-arcs])
  AC_TRY_COMPILE([], [return 0;],
                 [ PROFILE_GEN_CFLAGS="-fprofile-arcs"
                   result="yes" ], result="no")
  AC_MSG_RESULT([$result])
  if test $result = "yes"; then
    PROFILE_USE_CFLAGS="-fbranch-probabilities"
  fi
fi

CFLAGS="$_SAVE_CFLAGS"

AC_SUBST(PROFILE_GEN_CFLAGS)
AC_SUBST(PROFILE_USE_CFLAGS)

AC_LANG_CPLUSPLUS

dnl ========================================================
dnl Test for -pedantic bustage
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(pedantic,
[  --disable-pedantic      Issue all warnings demanded by strict ANSI C ],
_PEDANTIC= )
if test "$_PEDANTIC"; then
    _SAVE_CXXFLAGS=$CXXFLAGS
    CXXFLAGS="$CXXFLAGS ${_WARNINGS_CXXFLAGS} ${_COMPILER_PREFIX}-pedantic"
    AC_MSG_CHECKING([whether C++ compiler has -pedantic long long bug])
    AC_TRY_COMPILE([$configure_static_assert_macros],
                   [CONFIGURE_STATIC_ASSERT(sizeof(long long) == 8)],
                   result="no", result="yes" )
    AC_MSG_RESULT([$result])
    CXXFLAGS="$_SAVE_CXXFLAGS"

    case "$result" in
    no)
        _WARNINGS_CFLAGS="${_WARNINGS_CFLAGS} ${_COMPILER_PREFIX}-pedantic"
        _WARNINGS_CXXFLAGS="${_WARNINGS_CXXFLAGS} ${_COMPILER_PREFIX}-pedantic"
        ;;
    yes)
        AC_MSG_ERROR([Your compiler appears to have a known bug where long long is miscompiled when using -pedantic.  Reconfigure using --disable-pedantic. ])
        ;;
    esac
fi

dnl ========================================================
dnl Test for correct temporary object destruction order
dnl ========================================================
dnl We want to make sure the compiler follows the C++ spec here as 
dnl xpcom and the string classes depend on it (bug 235381).
AC_MSG_CHECKING([for correct temporary object destruction order])
AC_TRY_RUN([ class A {
             public:  A(int& x) : mValue(x) {}
                      ~A() { mValue--; }
                      operator char**() { return 0; }
             private:  int& mValue;
             };
             void func(char **arg) {}
             int m=2;
             void test() {
                  func(A(m));
                  if (m==1) m = 0;
             }
             int main() {
                 test();
                 return(m);
             }
             ],
     result="yes", result="no", result="maybe")
AC_MSG_RESULT([$result])

if test "$result" = "no"; then
    AC_MSG_ERROR([Your compiler does not follow the C++ specification for temporary object destruction order.])
fi

dnl ========================================================
dnl Autoconf test for gcc 2.7.2.x (and maybe others?) so that we don't
dnl provide non-const forms of the operator== for comparing nsCOMPtrs to
dnl raw pointers in nsCOMPtr.h.  (VC++ has the same bug.)
dnl ========================================================
_SAVE_CXXFLAGS=$CXXFLAGS
CXXFLAGS="$CXXFLAGS ${_WARNINGS_CXXFLAGS}"
AC_CACHE_CHECK(for correct overload resolution with const and templates,
    ac_nscap_nonconst_opeq_bug,
    [AC_TRY_COMPILE([
                      template <class T>
                      class Pointer
                        {
                        public:
                          T* myPtr;
                        };
                      
                      template <class T, class U>
                      int operator==(const Pointer<T>& rhs, U* lhs)
                        {
                          return rhs.myPtr == lhs;
                        }
                      
                      template <class T, class U>
                      int operator==(const Pointer<T>& rhs, const U* lhs)
                        {
                          return rhs.myPtr == lhs;
                        }
                    ],
                    [
                      Pointer<int> foo;
                      const int* bar;
                      return foo == bar;
                    ],
                    ac_nscap_nonconst_opeq_bug="no",
                    ac_nscap_nonconst_opeq_bug="yes")])
CXXFLAGS="$_SAVE_CXXFLAGS"

if test "$ac_nscap_nonconst_opeq_bug" = "yes" ; then
    AC_DEFINE(NSCAP_DONT_PROVIDE_NONCONST_OPEQ)
fi
fi # SKIP_COMPILER_CHECKS

dnl ========================================================
dnl C++ rtti
dnl Should be smarter and check that the compiler does indeed have rtti
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(cpp-rtti,
[  --enable-cpp-rtti       Enable C++ RTTI ],
[ _MOZ_USE_RTTI=1 ],
[ _MOZ_USE_RTTI= ])

if test "$_MOZ_USE_RTTI"; then
   _MOZ_RTTI_FLAGS=$_MOZ_RTTI_FLAGS_ON
else
   _MOZ_RTTI_FLAGS=$_MOZ_RTTI_FLAGS_OFF
fi

AC_SUBST(_MOZ_RTTI_FLAGS_ON)

dnl ========================================================
dnl C++ exceptions (g++/egcs only - for now)
dnl Should be smarter and check that the compiler does indeed have exceptions
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(cpp-exceptions,
[  --enable-cpp-exceptions Enable C++ exceptions ],
[ _MOZ_CPP_EXCEPTIONS=1 ],
[ _MOZ_CPP_EXCEPTIONS= ])

if test "$_MOZ_CPP_EXCEPTIONS"; then
    _MOZ_EXCEPTIONS_FLAGS=$_MOZ_EXCEPTIONS_FLAGS_ON
else
    _MOZ_EXCEPTIONS_FLAGS=$_MOZ_EXCEPTIONS_FLAGS_OFF
fi

# Irix & OSF native compilers do not like exception declarations 
# when exceptions are disabled
if test -n "$MIPSPRO_CXX" -o -n "$COMPAQ_CXX" -o -n "$VACPP"; then
    AC_DEFINE(CPP_THROW_NEW, [])
else
    AC_DEFINE(CPP_THROW_NEW, [throw()])
fi
AC_LANG_C

dnl ========================================================
dnl =
dnl = Build depencency options
dnl =
dnl ========================================================
MOZ_ARG_HEADER(Build dependencies)

dnl ========================================================
dnl = Do not auto generate dependency info
dnl ========================================================
MOZ_AUTO_DEPS=1
MOZ_ARG_DISABLE_BOOL(auto-deps,
[  --disable-auto-deps     Do not automatically generate dependency info],
    MOZ_AUTO_DEPS=,
    MOZ_AUTO_DEPS=1)

if test -n "$MOZ_AUTO_DEPS"; then
dnl ========================================================
dnl = Use mkdepend instead of $CC -MD for dependency generation
dnl ========================================================
_cpp_md_flag=
MOZ_ARG_DISABLE_BOOL(md,
[  --disable-md            Do not use compiler-based dependencies ],
  [_cpp_md_flag=],
  [_cpp_md_flag=1],
  [dnl Default is to turn on -MD if using GNU-compatible compilers
   if test "$GNU_CC" -a "$GNU_CXX" -a "$OS_ARCH" != "WINNT" -a "$OS_ARCH" != "WINCE"; then
     _cpp_md_flag=1
   fi
  dnl Default is to use -xM if using Sun Studio on Solaris
   if test -z "$GNU_CC" && test -z "$GNU_CXX" && test "$OS_ARCH" = "SunOS"; then
     _cpp_md_flag=1
   fi])
if test "$_cpp_md_flag"; then
  COMPILER_DEPEND=1
  if test "$OS_ARCH" = "OpenVMS"; then
    _DEPEND_CFLAGS='$(subst =, ,$(filter-out %/.pp,-MM=-MD=-MF=$(MDDEPDIR)/$(*F).pp))'
  else
    _DEPEND_CFLAGS='$(filter-out %/.pp,-Wp,-MD,$(MDDEPDIR)/$(*F).pp)'
  fi
  dnl Sun Studio on Solaris use -xM instead of -MD, see config/rules.mk
  if test -z "$GNU_CC" && test -z "$GNU_CXX" && test "$OS_ARCH" = "SunOS"; then
    _DEPEND_CFLAGS=
  fi
else
  COMPILER_DEPEND=
  _USE_CPP_INCLUDE_FLAG=
  _DEFINES_CFLAGS='$(ACDEFINES) -D_MOZILLA_CONFIG_H_ -DMOZILLA_CLIENT'
  _DEFINES_CXXFLAGS='$(ACDEFINES) -D_MOZILLA_CONFIG_H_ -DMOZILLA_CLIENT'
fi
fi # MOZ_AUTO_DEPS
MDDEPDIR='.deps'
AC_SUBST(MOZ_AUTO_DEPS)
AC_SUBST(COMPILER_DEPEND)
AC_SUBST(MDDEPDIR)


dnl ========================================================
dnl =
dnl = Static Build Options
dnl =
dnl ========================================================
MOZ_ARG_HEADER(Static build options)

MOZ_ARG_ENABLE_BOOL(static,
[  --enable-static         Enable building of internal static libs],
    BUILD_STATIC_LIBS=1,
    BUILD_STATIC_LIBS=)

dnl Disable libxul in debug builds, but not for xulrunner.
if test -n "$MOZ_DEBUG" -a "$MOZ_BUILD_APP" != "xulrunner"; then
   MOZ_ENABLE_LIBXUL=
fi

MOZ_ARG_ENABLE_BOOL(libxul,
[  --enable-libxul         Enable building of libxul],
    MOZ_ENABLE_LIBXUL=1,
    MOZ_ENABLE_LIBXUL=)

if test -n "$MOZ_ENABLE_LIBXUL" -a -n "$BUILD_STATIC_LIBS"; then
	AC_MSG_ERROR([--enable-libxul is not compatible with --enable-static])
fi

if test -n "$MOZ_ENABLE_LIBXUL" -a -z "$MOZ_XUL_APP"; then
	AC_MSG_ERROR([--enable-libxul is only compatible with toolkit XUL applications.])
fi

if test -n "$MOZ_ENABLE_LIBXUL"; then
    XPCOM_LIBS="$LIBXUL_LIBS"
    AC_DEFINE(MOZ_ENABLE_LIBXUL)
else
    if test -n "$BUILD_STATIC_LIBS"; then
        AC_DEFINE(MOZ_STATIC_BUILD)
    fi
    XPCOM_LIBS="$DYNAMIC_XPCOM_LIBS"
fi

dnl ========================================================
dnl = Force JS to be a static lib
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(js-static-build,
[  --enable-js-static-build  Force js to be a static lib],
    JS_STATIC_BUILD=1,
    JS_STATIC_BUILD= )

AC_SUBST(JS_STATIC_BUILD)
        
if test -n "$JS_STATIC_BUILD"; then
    AC_DEFINE(EXPORT_JS_API)

if test -z "$BUILD_STATIC_LIBS"; then
    AC_MSG_ERROR([--enable-js-static-build is only compatible with --enable-static])
fi

fi

dnl ========================================================
dnl =
dnl = Standalone module options
dnl = 
dnl ========================================================
MOZ_ARG_HEADER(Standalone module options (Not for building Mozilla))

dnl Check for GLib and libIDL.
dnl ========================================================
case "$target_os" in
msvc*|mks*|cygwin*|mingw*|wince*)
    SKIP_IDL_CHECK="yes"
    ;;
*)
    SKIP_IDL_CHECK="no"
    ;;
esac

if test -z "$COMPILE_ENVIRONMENT"; then
    SKIP_IDL_CHECK="yes"
fi

dnl = Allow users to disable libIDL checking for standalone modules
MOZ_ARG_WITHOUT_BOOL(libIDL,
[  --without-libIDL        Skip check for libIDL (standalone modules only)],
	SKIP_IDL_CHECK="yes")

if test "$SKIP_IDL_CHECK" = "no"
then
    _LIBIDL_FOUND=
    if test "$MACOS_SDK_DIR"; then 
      dnl xpidl, and therefore libIDL, is only needed on the build host.
      dnl Don't build it against the SDK, as that causes problems.
      _MACSAVE_CFLAGS="$CFLAGS"
      _MACSAVE_LIBS="$LIBS"
      _MACSAVE_LDFLAGS="$LDFLAGS"
      _MACSAVE_NEXT_ROOT="$NEXT_ROOT"
      changequote(,)
      CFLAGS=`echo $CFLAGS|sed -E -e "s%((-I|-isystem )${MACOS_SDK_DIR}/usr/(include|lib/gcc)[^ ]*)|-F${MACOS_SDK_DIR}(/System)?/Library/Frameworks[^ ]*|-nostdinc[^ ]*|-isysroot ${MACOS_SDK_DIR}%%g"`
      LIBS=`echo $LIBS|sed -e "s?-L${MACOS_SDK_DIR}/usr/lib[^ ]*??g"`
      LDFLAGS=`echo $LDFLAGS|sed -e "s?-Wl,-syslibroot,${MACOS_SDK_DIR}??g"`
      changequote([,])
      unset NEXT_ROOT
    fi

    if test "$MOZ_ENABLE_GTK2"; then
        PKG_CHECK_MODULES(LIBIDL, libIDL-2.0 >= 0.8.0 glib-2.0 gobject-2.0, _LIBIDL_FOUND=1,_LIBIDL_FOUND=)
    fi
    dnl if no gtk/libIDL1 or gtk2/libIDL2 combination was found, fall back
    dnl to either libIDL1 or libIDL2.
    if test -z "$_LIBIDL_FOUND"; then
        AM_PATH_LIBIDL($LIBIDL_VERSION,_LIBIDL_FOUND=1)
        if test -z "$_LIBIDL_FOUND"; then
            PKG_CHECK_MODULES(LIBIDL, libIDL-2.0 >= 0.8.0,_LIBIDL_FOUND=1)
        fi
    fi
    dnl
    dnl If we don't have a libIDL config program & not cross-compiling, 
    dnl     look for orbit-config instead.
    dnl
    if test -z "$_LIBIDL_FOUND" && test -z "$CROSS_COMPILE"; then
        AC_PATH_PROGS(ORBIT_CONFIG, $ORBIT_CONFIG orbit-config)
        if test -n "$ORBIT_CONFIG"; then
            AC_MSG_CHECKING([for ORBit libIDL usability])
        	_ORBIT_CFLAGS=`${ORBIT_CONFIG} client --cflags`
    	    _ORBIT_LIBS=`${ORBIT_CONFIG} client --libs`
            _ORBIT_INC_PATH=`${PERL} -e '{ for $f (@ARGV) { print "$f " if ($f =~ m/^-I/); } }' -- ${_ORBIT_CFLAGS}`
            _ORBIT_LIB_PATH=`${PERL} -e '{ for $f (@ARGV) { print "$f " if ($f =~ m/^-L/); } }' -- ${_ORBIT_LIBS}`
            LIBIDL_CFLAGS="$_ORBIT_INC_PATH"
            LIBIDL_LIBS="$_ORBIT_LIB_PATH -lIDL -lglib"
            LIBIDL_CONFIG=
            _SAVE_CFLAGS="$CFLAGS"
            _SAVE_LIBS="$LIBS"
            CFLAGS="$LIBIDL_CFLAGS $CFLAGS"
            LIBS="$LIBIDL_LIBS $LIBS"
            AC_TRY_RUN([
#include <stdlib.h>
#include <libIDL/IDL.h>
int main() {
  char *s;
  s=strdup(IDL_get_libver_string());
  if(s==NULL) {
    exit(1);
  }
  exit(0);
}
            ], [_LIBIDL_FOUND=1
                result="yes"],
               [LIBIDL_CFLAGS=
                LIBIDL_LIBS=
                result="no"],
               [_LIBIDL_FOUND=1
                result="maybe"] )
            AC_MSG_RESULT($result)
            CFLAGS="$_SAVE_CFLAGS"
            LIBS="$_SAVE_LIBS"
        fi
    fi
    if test -z "$_LIBIDL_FOUND"; then
        AC_MSG_ERROR([libIDL not found.
        libIDL $LIBIDL_VERSION or higher is required.])
    fi
    if test "$MACOS_SDK_DIR"; then
      CFLAGS="$_MACSAVE_CFLAGS"
      LIBS="$_MACSAVE_LIBS"
      LDFLAGS="$_MACSAVE_LDFLAGS"
      if test -n "$_MACSAVE_NEXT_ROOT" ; then
        export NEXT_ROOT="$_MACSAVE_NEXT_ROOT"
      fi
    fi
fi

if test -n "$CROSS_COMPILE"; then
     if test -z "$HOST_LIBIDL_CONFIG"; then
        HOST_LIBIDL_CONFIG="$LIBIDL_CONFIG"
    fi
    if test -n "$HOST_LIBIDL_CONFIG" && test "$HOST_LIBIDL_CONFIG" != "no"; then
        HOST_LIBIDL_CFLAGS=`${HOST_LIBIDL_CONFIG} --cflags`
        HOST_LIBIDL_LIBS=`${HOST_LIBIDL_CONFIG} --libs`
    else
        HOST_LIBIDL_CFLAGS="$LIBIDL_CFLAGS"
        HOST_LIBIDL_LIBS="$LIBIDL_LIBS"
    fi
fi

if test -z "$SKIP_PATH_CHECKS"; then
if test -z "${GLIB_CFLAGS}" || test -z "${GLIB_LIBS}" ; then
    if test "$MOZ_ENABLE_GTK2"; then
        PKG_CHECK_MODULES(GLIB, glib-2.0 >= 1.3.7 gobject-2.0)
    else
        AM_PATH_GLIB(${GLIB_VERSION})
    fi
fi
fi

if test -z "${GLIB_GMODULE_LIBS}" -a -n "${GLIB_CONFIG}"; then
    GLIB_GMODULE_LIBS=`$GLIB_CONFIG gmodule --libs`
fi

AC_SUBST(LIBIDL_CFLAGS)
AC_SUBST(LIBIDL_LIBS)
AC_SUBST(STATIC_LIBIDL)
AC_SUBST(GLIB_CFLAGS)
AC_SUBST(GLIB_LIBS)
AC_SUBST(GLIB_GMODULE_LIBS)
AC_SUBST(HOST_LIBIDL_CONFIG)
AC_SUBST(HOST_LIBIDL_CFLAGS)
AC_SUBST(HOST_LIBIDL_LIBS)

dnl ========================================================
dnl Check for libart
dnl ========================================================
if test "$MOZ_SVG_RENDERER_LIBART"; then
  if test ! -f $topsrcdir/other-licenses/libart_lgpl/Makefile.in; then
    AC_MSG_ERROR([You must check out the mozilla version of libart. Use
mk_add_options MOZ_CO_MODULE=mozilla/other-licenses/libart_lgpl])
  fi

  dnl libart's configure hasn't been run yet, but we know what the
  dnl answer should be anyway
  MOZ_LIBART_CFLAGS='-I${DIST}/include/libart_lgpl'
  case "$target_os" in
  msvc*|mks*|cygwin*|mingw*|wince*)
      MOZ_LIBART_LIBS='$(LIBXUL_DIST)/lib/$(LIB_PREFIX)moz_art_lgpl.$(IMPORT_LIB_SUFFIX)' 
      ;;
  os2*)
      MOZ_LIBART_LIBS='-lmoz_art -lm'
      ;;
  beos*)
      MOZ_LIBART_LIBS='-lmoz_art_lgpl -lroot -lbe'
      ;;
  *)
      MOZ_LIBART_LIBS='-lmoz_art_lgpl -lm'
      ;;
  esac
  AC_FUNC_ALLOCA
fi

AC_SUBST(MOZ_LIBART_CFLAGS)
AC_SUBST(MOZ_LIBART_LIBS)

dnl ========================================================
dnl Check for cairo
dnl ========================================================
if test "$MOZ_SVG" -o "$MOZ_ENABLE_CANVAS" -o "$MOZ_ENABLE_CAIRO_GFX" ; then
   MOZ_CAIRO_CFLAGS='-I$(LIBXUL_DIST)/include/cairo'

   MOZ_TREE_CAIRO=1
   MOZ_ARG_ENABLE_BOOL(system-cairo,
   [ --enable-system-cairo Use system cairo (located with pkgconfig)],
   MOZ_TREE_CAIRO=,
   MOZ_TREE_CAIRO=1 )

   if test "$MOZ_TREE_CAIRO"; then
       # Check for headers defining standard int types.
       AC_CHECK_HEADERS(stdint.h inttypes.h sys/int_types.h)

       # For now we assume that we will have a uint64_t available through
       # one of the above headers or mozstdint.h.
       AC_DEFINE(HAVE_UINT64_T)

       # Define macros for cairo-features.h
       if test "$MOZ_X11"; then
           XLIB_SURFACE_FEATURE="#define CAIRO_HAS_XLIB_SURFACE 1"
           XLIB_XRENDER_SURFACE_FEATURE="#define CAIRO_HAS_XLIB_XRENDER_SURFACE 1"
           PS_SURFACE_FEATURE="#define CAIRO_HAS_PS_SURFACE 1"
           PDF_SURFACE_FEATURE="#define CAIRO_HAS_PDF_SURFACE 1"
           FT_FONT_FEATURE="#define CAIRO_HAS_FT_FONT 1"
           MOZ_ENABLE_CAIRO_FT=1
           CAIRO_FT_CFLAGS="$FT2_CFLAGS"
       fi
       if test "$MOZ_WIDGET_TOOLKIT" = "mac" -o "$MOZ_WIDGET_TOOLKIT" = "cocoa"; then
           QUARTZ_SURFACE_FEATURE="#define CAIRO_HAS_QUARTZ_SURFACE 1"
           ATSUI_FONT_FEATURE="#define CAIRO_HAS_ATSUI_FONT 1"
       fi
       if test "$MOZ_WIDGET_TOOLKIT" = "windows"; then
           WIN32_SURFACE_FEATURE="#define CAIRO_HAS_WIN32_SURFACE 1"
           WIN32_FONT_FEATURE="#define CAIRO_HAS_WIN32_FONT 1"
           PDF_SURFACE_FEATURE="#define CAIRO_HAS_PDF_SURFACE 1"
       fi
       if test "$MOZ_WIDGET_TOOLKIT" = "os2"; then
           OS2_SURFACE_FEATURE="#define CAIRO_HAS_OS2_SURFACE 1"
           FT_FONT_FEATURE="#define CAIRO_HAS_FT_FONT 1"
           MOZ_ENABLE_CAIRO_FT=1
           CAIRO_FT_CFLAGS="-I${MZFTCFGFT2}/include"
           CAIRO_FT_LIBS="-L${MZFTCFGFT2}/lib -lmozft -lmzfntcfg"
       fi
       if test "$MOZ_ENABLE_GLITZ"; then
           GLITZ_SURFACE_FEATURE="#define CAIRO_HAS_GLITZ_SURFACE 1"
       fi
       if test "$MOZ_WIDGET_TOOLKIT" = "beos"; then
           PKG_CHECK_MODULES(CAIRO_FT, fontconfig freetype2)
           BEOS_SURFACE_FEATURE="#define CAIRO_HAS_BEOS_SURFACE 1"
           FT_FONT_FEATURE="#define CAIRO_HAS_FT_FONT 1"
           MOZ_ENABLE_CAIRO_FT=1
       fi
       AC_SUBST(MOZ_ENABLE_CAIRO_FT)
       AC_SUBST(CAIRO_FT_CFLAGS)

       if test "$MOZ_DEBUG"; then
         SANITY_CHECKING_FEATURE="#define CAIRO_DO_SANITY_CHECKING 1"
       else
         SANITY_CHECKING_FEATURE="#undef CAIRO_DO_SANITY_CHECKING"
       fi

       PNG_FUNCTIONS_FEATURE="#define CAIRO_HAS_PNG_FUNCTIONS 1"

       AC_SUBST(PS_SURFACE_FEATURE)
       AC_SUBST(PDF_SURFACE_FEATURE)
       AC_SUBST(SVG_SURFACE_FEATURE)
       AC_SUBST(XLIB_SURFACE_FEATURE)
       AC_SUBST(XLIB_XRENDER_SURFACE_FEATURE)
       AC_SUBST(QUARTZ_SURFACE_FEATURE)
       AC_SUBST(NQUARTZ_SURFACE_FEATURE)
       AC_SUBST(XCB_SURFACE_FEATURE)
       AC_SUBST(WIN32_SURFACE_FEATURE)
       AC_SUBST(OS2_SURFACE_FEATURE)
       AC_SUBST(BEOS_SURFACE_FEATURE)
       AC_SUBST(GLITZ_SURFACE_FEATURE)
       AC_SUBST(DIRECTFB_SURFACE_FEATURE)
       AC_SUBST(FT_FONT_FEATURE)
       AC_SUBST(WIN32_FONT_FEATURE)
       AC_SUBST(ATSUI_FONT_FEATURE)
       AC_SUBST(PNG_FUNCTIONS_FEATURE)

       if test "$_WIN32_MSVC"; then
           MOZ_CAIRO_LIBS='$(DEPTH)/gfx/cairo/cairo/src/mozcairo.lib $(DEPTH)/gfx/cairo/libpixman/src/mozlibpixman.lib'
           if test "$MOZ_ENABLE_GLITZ"; then
               MOZ_CAIRO_LIBS="$MOZ_CAIRO_LIBS "'$(DEPTH)/gfx/cairo/glitz/src/mozglitz.lib $(DEPTH)/gfx/cairo/glitz/src/wgl/mozglitzwgl.lib'
           fi
       else
           MOZ_CAIRO_LIBS='$(DEPTH)/gfx/cairo/cairo/src/$(LIB_PREFIX)mozcairo.$(LIB_SUFFIX) $(DEPTH)/gfx/cairo/libpixman/src/$(LIB_PREFIX)mozlibpixman.$(LIB_SUFFIX)'" $CAIRO_FT_LIBS"

           if test "$MOZ_X11"; then
               MOZ_CAIRO_LIBS="$MOZ_CAIRO_LIBS $XLDFLAGS -lXrender -lfreetype -lfontconfig"
           fi

           if test "$MOZ_ENABLE_GLITZ"; then
               MOZ_CAIRO_LIBS="$MOZ_CAIRO_LIBS "'-L$(DEPTH)/gfx/cairo/glitz/src -lmozglitz'
               if test "$MOZ_X11"; then
                   MOZ_CAIRO_LIBS="$MOZ_CAIRO_LIBS "'-L$(DEPTH)/gfx/cairo/glitz/src/glx -lmozglitzglx -lGL'
               fi
               if test "$MOZ_WIDGET_TOOLKIT" = "windows"; then
                   MOZ_CAIRO_LIBS="$MOZ_CAIRO_LIBS "'-L$(DEPTH)/gfx/cairo/glitz/src/wgl -lmozglitzwgl'
               fi
           fi
       fi
   else
      PKG_CHECK_MODULES(CAIRO, cairo >= $CAIRO_VERSION freetype2 fontconfig)
      MOZ_CAIRO_CFLAGS=$CAIRO_CFLAGS
      MOZ_CAIRO_LIBS=$CAIRO_LIBS
   fi
fi

AC_SUBST(MOZ_TREE_CAIRO)
AC_SUBST(MOZ_CAIRO_CFLAGS)
AC_SUBST(MOZ_CAIRO_LIBS)

dnl ========================================================
dnl Check for lcms
dnl ========================================================

MOZ_NATIVE_LCMS=
MOZ_ARG_ENABLE_BOOL(system-lcms,
[ --enable-system-lcms Use system lcms (located with pkgconfig)],
MOZ_NATIVE_LCMS=1,
MOZ_NATIVE_LCMS= )

if test -z "$MOZ_NATIVE_LCMS"
then
    LCMS_CFLAGS=
    if test "$_WIN32_MSVC"; then
        if test -z "$BUILD_STATIC_LIBS" -a -z "$MOZ_ENABLE_LIBXUL"; then
            LCMS_CFLAGS=-DLCMS_DLL
        fi
        LCMS_LIBS='$(LIBXUL_DIST)/lib/mozlcms.lib'
    else
        LCMS_LIBS='-L$(LIBXUL_DIST)/bin -lmozlcms'
    fi
else
    PKG_CHECK_MODULES(LCMS, lcms >= $LCMS_VERSION)
fi

AC_SUBST(MOZ_NATIVE_LCMS)
AC_SUBST(LCMS_CFLAGS)
AC_SUBST(LCMS_LIBS)

dnl ========================================================
dnl disable xul
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(xul,
[  --disable-xul           Disable XUL],
    MOZ_XUL= )
if test "$MOZ_XUL"; then
  AC_DEFINE(MOZ_XUL)
else
  dnl remove extensions that require XUL
  MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS | sed -e 's/inspector//' -e 's/venkman//' -e 's/irc//' -e 's/tasks//'`
fi

AC_SUBST(MOZ_XUL)

dnl ========================================================
dnl Two ways to enable Python support:
dnl   --enable-extensions=python # select all available.
dnl    (MOZ_PYTHON_EXTENSIONS contains the list of extensions)
dnl or:
dnl   --enable-extensions=python/xpcom,... # select individual ones
dnl
dnl If either is used, we locate the Python to use.
dnl ========================================================
dnl
dnl If 'python' appears anywhere in the extensions list, go lookin'...
if test `echo "$MOZ_EXTENSIONS" | grep -c python` -ne 0; then
    dnl Allow PYTHON to point to the Python interpreter to use
    dnl (note that it must be the python executable - which we
    dnl run to locate the relevant paths etc)
    dnl If not set, we use whatever Python we can find.
    MOZ_PYTHON=$PYTHON
    dnl Ask Python what its version number is
    changequote(,)
    MOZ_PYTHON_VER=`$PYTHON -c "import sys;print '%d%d' % sys.version_info[0:2]"`
    MOZ_PYTHON_VER_DOTTED=`$PYTHON -c "import sys;print '%d.%d' % sys.version_info[0:2]"`
    changequote([,])
    dnl Ask for the Python "prefix" (ie, home/source dir)
    MOZ_PYTHON_PREFIX=`$PYTHON -c "import sys; print sys.prefix"`
    dnl Setup the include and library directories.
    if test "$OS_ARCH" = "WINNT"; then
        MOZ_PYTHON_PREFIX=`$CYGPATH_W $MOZ_PYTHON_PREFIX | $CYGPATH_S`
        dnl Source trees have "include" and "PC" for .h, and "PCbuild" for .lib
        dnl Binary trees have "include" for .h, and "libs" for .lib
        dnl We add 'em both - along with quotes, to handle spaces.
        MOZ_PYTHON_DLL_SUFFIX=.pyd
        MOZ_PYTHON_INCLUDES="\"-I$MOZ_PYTHON_PREFIX/include\" \"-I$MOZ_PYTHON_PREFIX/PC\""
        MOZ_PYTHON_LIBS="\"/libpath:$MOZ_PYTHON_PREFIX/PCBuild\" \"/libpath:$MOZ_PYTHON_PREFIX/libs\""
    else
        dnl Non-Windows include and libs
        MOZ_PYTHON_DLL_SUFFIX=$DLL_SUFFIX
        MOZ_PYTHON_INCLUDES="-I$MOZ_PYTHON_PREFIX/include/python$MOZ_PYTHON_VER_DOTTED"
        dnl Check for dynamic Python lib
        dnl - A static Python is no good - multiple dynamic libraries (xpcom
        dnl - core, xpcom loader, pydom etc) all need to share Python.
        dnl - Python 2.3's std --enable-shared configure option will
        dnl   create a libpython2.3.so.1.0. We should first try this
        dnl   dotted versioned .so file because this is the one that
        dnl   the PyXPCOM build mechanics tries to link to.
        dnl   XXX Should find a better way than hardcoding "1.0".
        dnl - Python developement tree dir layouts are NOT allowed here
        dnl   because the PyXPCOM build just dies on it later anyway.
        dnl - Fixes to the above by Python/*nix knowledgable people welcome!
        if test -f "$MOZ_PYTHON_PREFIX/lib/libpython$MOZ_PYTHON_VER_DOTTED.so.1.0"; then
            MOZ_PYTHON_LIBS="-L$MOZ_PYTHON_PREFIX/lib -lpython$MOZ_PYTHON_VER_DOTTED"
        elif test -f "$MOZ_PYTHON_PREFIX/lib/libpython$MOZ_PYTHON_VER_DOTTED.so"; then
            MOZ_PYTHON_LIBS="-L$MOZ_PYTHON_PREFIX/lib -lpython$MOZ_PYTHON_VER_DOTTED"
        elif test -f "$MOZ_PYTHON_PREFIX/libpython$MOZ_PYTHON_VER_DOTTED.so"; then
            dnl Don't Python development tree directory layout.
            MOZ_PYTHON_LIBS="-L$MOZ_PYTHON_PREFIX -lpython$MOZ_PYTHON_VER_DOTTED"
            AC_MSG_ERROR([The Python at $MOZ_PYTHON_PREFIX looks like a dev tree. The PyXPCOM build cannot handle this yet. You must 'make install' Python and use the installed tree.])
        elif test "$OS_ARCH" = "Darwin"; then
            dnl We do Darwin last, so if a custom non-framework build of
            dnl python is used on OSX, then it will be picked up first by
            dnl the logic above.
            MOZ_PYTHON_LIBS="-framework Python"
        else
            AC_MSG_ERROR([Could not find build shared libraries for Python at $MOZ_PYTHON_PREFIX.  This is required for PyXPCOM.])
        fi
        if test "$OS_ARCH" = "Linux"; then
            MOZ_PYTHON_LIBS="$MOZ_PYTHON_LIBS -lutil"
        fi
    fi
    dnl Handle "_d" on Windows
    if test "$OS_ARCH" = "WINNT" && test -n "$MOZ_DEBUG"; then
        MOZ_PYTHON_DEBUG_SUFFIX="_d"
    else
        MOZ_PYTHON_DEBUG_SUFFIX=
    fi
    AC_MSG_RESULT(Building Python extensions using python-$MOZ_PYTHON_VER_DOTTED from $MOZ_PYTHON_PREFIX)
fi

dnl If the user asks for the 'python' extension, then we add
dnl MOZ_PYTHON_EXTENSIONS to MOZ_EXTENSIONS - but with the leading 'python/'
dnl Note the careful regex - it must match 'python' followed by anything
dnl other than a '/', including the end-of-string.
if test `echo "$MOZ_EXTENSIONS" | grep -c 'python\([[^/]]\|$\)'` -ne 0; then
    for pyext in $MOZ_PYTHON_EXTENSIONS; do
        MOZ_EXTENSIONS=`echo $MOZ_EXTENSIONS python/$pyext`
    done
fi
dnl Later we may allow MOZ_PYTHON_EXTENSIONS to be specified on the
dnl command-line, but not yet
AC_SUBST(MOZ_PYTHON_EXTENSIONS)
AC_SUBST(MOZ_PYTHON)
AC_SUBST(MOZ_PYTHON_PREFIX)
AC_SUBST(MOZ_PYTHON_INCLUDES)
AC_SUBST(MOZ_PYTHON_LIBS)
AC_SUBST(MOZ_PYTHON_VER)
AC_SUBST(MOZ_PYTHON_VER_DOTTED)
AC_SUBST(MOZ_PYTHON_DEBUG_SUFFIX)
AC_SUBST(MOZ_PYTHON_DLL_SUFFIX)

dnl ========================================================
dnl disable profile sharing
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(profilesharing,
[  --disable-profilesharing           Disable profile sharing],
    MOZ_PROFILESHARING=,
    MOZ_PROFILESHARING=1 )
if test "$MOZ_PROFILESHARING"; then
  MOZ_IPCD=1
  AC_DEFINE(MOZ_PROFILESHARING)
fi

dnl ========================================================
dnl enable ipc/ipcd
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(ipcd,
[  --enable-ipcd                      Enable IPC daemon],
    MOZ_IPCD=1,
    MOZ_IPCD= )

dnl ========================================================
dnl disable profile locking
dnl   do no use this in applications that can have more than
dnl   one process accessing the profile directory.
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(profilelocking,
[  --disable-profilelocking           Disable profile locking],
    MOZ_PROFILELOCKING=,
    MOZ_PROFILELOCKING=1 )
if test "$MOZ_PROFILELOCKING"; then
  AC_DEFINE(MOZ_PROFILELOCKING)
fi

dnl ========================================================
dnl disable rdf services
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(rdf,
[  --disable-rdf           Disable RDF],
    MOZ_RDF= )
if test "$MOZ_RDF"; then
  AC_DEFINE(MOZ_RDF)
fi

AC_SUBST(MOZ_RDF)

dnl ========================================================
dnl necko configuration options
dnl ========================================================

dnl
dnl option to disable various necko protocols
dnl
MOZ_ARG_ENABLE_STRING(necko-protocols,
[  --enable-necko-protocols[={http,ftp,default,all,none}]
                          Enable/disable specific protocol handlers],
[ for option in `echo $enableval | sed 's/,/ /g'`; do
    if test "$option" = "yes" || test "$option" = "all"; then
        NECKO_PROTOCOLS="$NECKO_PROTOCOLS $NECKO_PROTOCOLS_DEFAULT"
    elif test "$option" = "no" || test "$option" = "none"; then
        NECKO_PROTOCOLS=""
    elif test "$option" = "default"; then
        NECKO_PROTOCOLS="$NECKO_PROTOCOLS $NECKO_PROTOCOLS_DEFAULT"
    elif test `echo "$option" | grep -c \^-` != 0; then
        option=`echo $option | sed 's/^-//'`
        NECKO_PROTOCOLS=`echo "$NECKO_PROTOCOLS" | sed "s/ ${option}//"`
    else
        NECKO_PROTOCOLS="$NECKO_PROTOCOLS $option"
    fi
done],
    NECKO_PROTOCOLS="$NECKO_PROTOCOLS_DEFAULT")
dnl Remove dupes
NECKO_PROTOCOLS=`${PERL} ${srcdir}/build/unix/uniq.pl ${NECKO_PROTOCOLS}`
AC_SUBST(NECKO_PROTOCOLS)
for p in $NECKO_PROTOCOLS; do
    AC_DEFINE_UNQUOTED(NECKO_PROTOCOL_$p)
done

dnl
dnl option to disable necko's disk cache
dnl
MOZ_ARG_DISABLE_BOOL(necko-disk-cache,
[  --disable-necko-disk-cache
                          Disable necko disk cache],
    NECKO_DISK_CACHE=,
    NECKO_DISK_CACHE=1)
AC_SUBST(NECKO_DISK_CACHE)
if test "$NECKO_DISK_CACHE"; then
    AC_DEFINE(NECKO_DISK_CACHE)
fi

dnl
dnl option to minimize size of necko's i/o buffers
dnl
MOZ_ARG_ENABLE_BOOL(necko-small-buffers,
[  --enable-necko-small-buffers
                          Minimize size of necko's i/o buffers],
    NECKO_SMALL_BUFFERS=1,
    NECKO_SMALL_BUFFERS=)
AC_SUBST(NECKO_SMALL_BUFFERS)
if test "$NECKO_SMALL_BUFFERS"; then
    AC_DEFINE(NECKO_SMALL_BUFFERS)
fi 

dnl
dnl option to disable cookies
dnl
MOZ_ARG_DISABLE_BOOL(cookies,
[  --disable-cookies       Disable cookie support],
    NECKO_COOKIES=,
    NECKO_COOKIES=1)
AC_SUBST(NECKO_COOKIES)
if test "$NECKO_COOKIES"; then
    AC_DEFINE(NECKO_COOKIES)
fi

dnl NECKO_ configuration options are not global
_NON_GLOBAL_ACDEFINES="$_NON_GLOBAL_ACDEFINES NECKO_"

dnl ========================================================
dnl string api compatibility
dnl ========================================================
MOZ_ARG_DISABLE_BOOL(v1-string-abi,
[  --disable-v1-string-abi   Disable binary compatibility layer for strings],
    MOZ_V1_STRING_ABI=,
    MOZ_V1_STRING_ABI=1)
AC_SUBST(MOZ_V1_STRING_ABI)
if test "$MOZ_V1_STRING_ABI"; then
    AC_DEFINE(MOZ_V1_STRING_ABI)
fi

dnl Only build Mork if it's required
AC_SUBST(MOZ_MORK)
if test "$MOZ_MORK"; then
  AC_DEFINE(MOZ_MORK)
fi

dnl Build the lightweight Mork reader if required
AC_SUBST(MOZ_MORKREADER)
if test "$MOZ_MORKREADER"; then
  AC_DEFINE(MOZ_MORKREADER)
fi

dnl ========================================================
if test "$MOZ_DEBUG" || test "$NS_TRACE_MALLOC"; then
    MOZ_COMPONENTS_VERSION_SCRIPT_LDFLAGS=
fi

if test "$MOZ_LDAP_XPCOM"; then
    LDAP_CFLAGS='-I${DIST}/public/ldap'
    if test "$OS_ARCH" = "WINNT"; then
        if test -n "$GNU_CC"; then
            LDAP_LIBS='-L$(DIST)/lib -lnsldap32v60 -lnsldappr32v60 -lnsldif32v60'
        else
            LDAP_LIBS='$(DIST)/lib/$(LIB_PREFIX)nsldap32v60.${IMPORT_LIB_SUFFIX} $(DIST)/lib/$(LIB_PREFIX)nsldappr32v60.${IMPORT_LIB_SUFFIX} $(DIST)/lib/$(LIB_PREFIX)nsldif32v60.${IMPORT_LIB_SUFFIX}'
        fi
    elif test "$OS_ARCH" = "OS2"; then
            LDAP_LIBS='$(DIST)/lib/$(LIB_PREFIX)ldap60.${IMPORT_LIB_SUFFIX} $(DIST)/lib/$(LIB_PREFIX)prldap60.${IMPORT_LIB_SUFFIX} $(DIST)/lib/$(LIB_PREFIX)ldif60.${IMPORT_LIB_SUFFIX}'
    else
        LDAP_LIBS='-L${DIST}/bin -L${DIST}/lib -lldap60 -lprldap60 -lldif60'
    fi
fi

if test "$COMPILE_ENVIRONMENT"; then
if test "$SUNCTL"; then
    dnl older versions of glib do not seem to have gmodule which ctl needs
    _SAVE_CFLAGS=$CFLAGS
    CFLAGS="$CFLAGS $GLIB_CFLAGS"
    AC_LANG_SAVE
    AC_LANG_C
    AC_TRY_COMPILE([#include <gmodule.h>],
        [ int x = 1; x++; ],,
        [AC_MSG_ERROR([Cannot build ctl without gmodule support in glib.])])
    AC_LANG_RESTORE
    CFLAGS=$_SAVE_CFLAGS
    AC_DEFINE(SUNCTL)
fi
fi # COMPILE_ENVIRONMENT

dnl ========================================================
dnl =
dnl = Maintainer debug option (no --enable equivalent)
dnl =
dnl ========================================================

AC_SUBST(AR)
AC_SUBST(AR_FLAGS)
AC_SUBST(AR_LIST)
AC_SUBST(AR_EXTRACT)
AC_SUBST(AR_DELETE)
AC_SUBST(AS)
AC_SUBST(ASFLAGS)
AC_SUBST(AS_DASH_C_FLAG)
AC_SUBST(LD)
AC_SUBST(RC)
AC_SUBST(RCFLAGS)
AC_SUBST(WINDRES)
AC_SUBST(USE_SHORT_LIBNAME)
AC_SUBST(IMPLIB)
AC_SUBST(FILTER)
AC_SUBST(BIN_FLAGS)
AC_SUBST(NS_USE_NATIVE)
AC_SUBST(MOZ_WIDGET_TOOLKIT)
AC_SUBST(MOZ_GFX_TOOLKIT)
AC_SUBST(MOZ_UPDATE_XTERM)
AC_SUBST(MINIMO)
AC_SUBST(MOZ_AUTH_EXTENSION)
AC_SUBST(MOZ_MATHML)
AC_SUBST(MOZ_PERMISSIONS)
AC_SUBST(MOZ_XTF)
AC_SUBST(MOZ_XMLEXTRAS)
AC_SUBST(MOZ_NO_INSPECTOR_APIS)
AC_SUBST(MOZ_WEBSERVICES)
AC_SUBST(MOZ_PREF_EXTENSIONS)
AC_SUBST(MOZ_SVG)
AC_SUBST(MOZ_SVG_FOREIGNOBJECT)
AC_SUBST(MOZ_XSLT_STANDALONE)
AC_SUBST(MOZ_JS_LIBS)
AC_SUBST(MOZ_PSM)
AC_SUBST(MOZ_DEBUG)
AC_SUBST(MOZ_DEBUG_MODULES)
AC_SUBST(MOZ_PROFILE_MODULES)
AC_SUBST(MOZ_DEBUG_ENABLE_DEFS)
AC_SUBST(MOZ_DEBUG_DISABLE_DEFS)
AC_SUBST(MOZ_DEBUG_FLAGS)
AC_SUBST(MOZ_DEBUG_LDFLAGS)
AC_SUBST(WARNINGS_AS_ERRORS)
AC_SUBST(MOZ_DBGRINFO_MODULES)
AC_SUBST(MOZ_EXTENSIONS)
AC_SUBST(MOZ_IMG_DECODERS)
AC_SUBST(MOZ_IMG_ENCODERS)
AC_SUBST(MOZ_JSDEBUGGER)
AC_SUBST(MOZ_OJI)
AC_SUBST(MOZ_NO_XPCOM_OBSOLETE)
AC_SUBST(MOZ_PLUGINS)
AC_SUBST(ENABLE_EAZEL_PROFILER)
AC_SUBST(EAZEL_PROFILER_CFLAGS)
AC_SUBST(EAZEL_PROFILER_LIBS)
AC_SUBST(MOZ_PERF_METRICS)
AC_SUBST(GC_LEAK_DETECTOR)
AC_SUBST(MOZ_LOG_REFCNT)
AC_SUBST(MOZ_LEAKY)
AC_SUBST(MOZ_JPROF)
AC_SUBST(MOZ_XPCTOOLS)
AC_SUBST(MOZ_JSLOADER)
AC_SUBST(MOZ_USE_NATIVE_UCONV)
AC_SUBST(MOZ_INSURE)
AC_SUBST(MOZ_INSURE_DIRS)
AC_SUBST(MOZ_INSURE_EXCLUDE_DIRS)
AC_SUBST(MOZ_QUANTIFY)
AC_SUBST(MOZ_INSURIFYING)
AC_SUBST(MOZ_LDAP_XPCOM)
AC_SUBST(MOZ_LDAP_XPCOM_EXPERIMENTAL)
AC_SUBST(LDAP_CFLAGS)
AC_SUBST(LDAP_LIBS)
AC_SUBST(LIBICONV)
AC_SUBST(MOZ_PLACES)
AC_SUBST(MOZ_PLACES_BOOKMARKS)
AC_SUBST(MOZ_STORAGE)
AC_SUBST(MOZ_FEEDS)
AC_SUBST(NS_PRINTING)

AC_SUBST(MOZ_JAVAXPCOM)
AC_SUBST(JAVA_INCLUDE_PATH)
AC_SUBST(JAVA)
AC_SUBST(JAVAC)
AC_SUBST(JAR)

AC_SUBST(MOZ_PROFILESHARING)
AC_SUBST(MOZ_PROFILELOCKING)

AC_SUBST(MOZ_IPCD)

AC_SUBST(HAVE_XIE)
AC_SUBST(MOZ_XIE_LIBS)
AC_SUBST(MOZ_ENABLE_POSTSCRIPT)

AC_SUBST(XPCOM_USE_LEA)
AC_SUBST(BUILD_STATIC_LIBS)
AC_SUBST(MOZ_ENABLE_LIBXUL)
AC_SUBST(ENABLE_TESTS)
AC_SUBST(IBMBIDI)
AC_SUBST(SUNCTL)
AC_SUBST(MOZ_UNIVERSALCHARDET)
AC_SUBST(ACCESSIBILITY)
AC_SUBST(MOZ_XPINSTALL)
AC_SUBST(MOZ_VIEW_SOURCE)
AC_SUBST(MOZ_SPELLCHECK)
AC_SUBST(MOZ_XPFE_COMPONENTS)
AC_SUBST(MOZ_USER_DIR)
AC_SUBST(MOZ_CRASHREPORTER)
AC_SUBST(MOZ_MOCHITEST)

AC_SUBST(ENABLE_STRIP)
AC_SUBST(PKG_SKIP_STRIP)
AC_SUBST(USE_ELF_DYNSTR_GC)
AC_SUBST(USE_PREBINDING)
AC_SUBST(INCREMENTAL_LINKER)
AC_SUBST(MOZ_COMPONENTS_VERSION_SCRIPT_LDFLAGS)
AC_SUBST(MOZ_COMPONENT_NSPR_LIBS)
AC_SUBST(MOZ_XPCOM_OBSOLETE_LIBS)

AC_SUBST(MOZ_FIX_LINK_PATHS)
AC_SUBST(XPCOM_LIBS)
AC_SUBST(XPCOM_FROZEN_LDOPTS)
AC_SUBST(XPCOM_GLUE_LDOPTS)
AC_SUBST(XPCOM_STANDALONE_GLUE_LDOPTS)

AC_SUBST(USE_DEPENDENT_LIBS)

AC_SUBST(MOZ_BUILD_ROOT)
AC_SUBST(MOZ_OS2_TOOLS)
AC_SUBST(MOZ_OS2_USE_DECLSPEC)

AC_SUBST(MOZ_POST_DSO_LIB_COMMAND)
AC_SUBST(MOZ_POST_PROGRAM_COMMAND)
AC_SUBST(MOZ_TIMELINE)
AC_SUBST(WINCE)
AC_SUBST(TARGET_DEVICE)

AC_SUBST(MOZ_APP_NAME)
AC_SUBST(MOZ_APP_DISPLAYNAME)
AC_SUBST(MOZ_APP_VERSION)
AC_SUBST(FIREFOX_VERSION)
AC_SUBST(THUNDERBIRD_VERSION)
AC_SUBST(SUNBIRD_VERSION)
AC_SUBST(SEAMONKEY_VERSION)

AC_SUBST(MOZ_PKG_SPECIAL)

AC_SUBST(MOZILLA_OFFICIAL)
AC_SUBST(BUILD_OFFICIAL)
AC_SUBST(MOZ_MILESTONE_RELEASE)

dnl win32 options
AC_SUBST(MOZ_PROFILE)
AC_SUBST(MOZ_DEBUG_SYMBOLS)
AC_SUBST(MOZ_MAPINFO)
AC_SUBST(MOZ_BROWSE_INFO)
AC_SUBST(MOZ_TOOLS_DIR)
AC_SUBST(CYGWIN_WRAPPER)
AC_SUBST(AS_PERL)
AC_SUBST(WIN32_REDIST_DIR)
AC_SUBST(PYTHON)

dnl Echo the CFLAGS to remove extra whitespace.
CFLAGS=`echo \
	$_WARNINGS_CFLAGS \
	$CFLAGS`

CXXFLAGS=`echo \
	$_MOZ_RTTI_FLAGS \
	$_MOZ_EXCEPTIONS_FLAGS \
	$_WARNINGS_CXXFLAGS \
	$CXXFLAGS`

COMPILE_CFLAGS=`echo \
    $_DEFINES_CFLAGS \
	$_DEPEND_CFLAGS \
    $COMPILE_CFLAGS`

COMPILE_CXXFLAGS=`echo \
    $_DEFINES_CXXFLAGS \
	$_DEPEND_CFLAGS \
    $COMPILE_CXXFLAGS`

AC_SUBST(SYSTEM_MAKEDEPEND)
AC_SUBST(SYSTEM_JPEG)
AC_SUBST(SYSTEM_PNG)
AC_SUBST(SYSTEM_ZLIB)

AC_SUBST(JPEG_CFLAGS)
AC_SUBST(JPEG_LIBS)
AC_SUBST(ZLIB_CFLAGS)
AC_SUBST(ZLIB_LIBS)
AC_SUBST(PNG_CFLAGS)
AC_SUBST(PNG_LIBS)

AC_SUBST(MOZ_JPEG_CFLAGS)
AC_SUBST(MOZ_JPEG_LIBS)
AC_SUBST(MOZ_ZLIB_CFLAGS)
AC_SUBST(MOZ_ZLIB_LIBS)
AC_SUBST(MOZ_PNG_CFLAGS)
AC_SUBST(MOZ_PNG_LIBS)

AC_SUBST(NSPR_CFLAGS)
AC_SUBST(NSPR_LIBS)
AC_SUBST(MOZ_NATIVE_NSPR)

AC_SUBST(NSS_CFLAGS)
AC_SUBST(NSS_LIBS)
AC_SUBST(NSS_DEP_LIBS)
AC_SUBST(MOZ_NATIVE_NSS)

AC_SUBST(CFLAGS)
AC_SUBST(CXXFLAGS)
AC_SUBST(CPPFLAGS)
AC_SUBST(COMPILE_CFLAGS)
AC_SUBST(COMPILE_CXXFLAGS)
AC_SUBST(LDFLAGS)
AC_SUBST(LIBS)
AC_SUBST(CROSS_COMPILE)

AC_SUBST(HOST_CC)
AC_SUBST(HOST_CXX)
AC_SUBST(HOST_CFLAGS)
AC_SUBST(HOST_CXXFLAGS)
AC_SUBST(HOST_OPTIMIZE_FLAGS)
AC_SUBST(HOST_AR)
AC_SUBST(HOST_AR_FLAGS)
AC_SUBST(HOST_LD)
AC_SUBST(HOST_RANLIB)
AC_SUBST(HOST_NSPR_MDCPUCFG)
AC_SUBST(HOST_BIN_SUFFIX)
AC_SUBST(HOST_OS_ARCH)

AC_SUBST(TARGET_CPU)
AC_SUBST(TARGET_VENDOR)
AC_SUBST(TARGET_OS)
AC_SUBST(TARGET_NSPR_MDCPUCFG)
AC_SUBST(TARGET_MD_ARCH)
AC_SUBST(TARGET_XPCOM_ABI)
AC_SUBST(OS_TARGET)
AC_SUBST(OS_ARCH)
AC_SUBST(OS_RELEASE)
AC_SUBST(OS_TEST)

AC_SUBST(MOZ_DISABLE_JAR_PACKAGING)
AC_SUBST(MOZ_CHROME_FILE_FORMAT)

AC_SUBST(WRAP_MALLOC_CFLAGS)
AC_SUBST(WRAP_MALLOC_LIB)
AC_SUBST(MKSHLIB)
AC_SUBST(MKCSHLIB)
AC_SUBST(MKSHLIB_FORCE_ALL)
AC_SUBST(MKSHLIB_UNFORCE_ALL)
AC_SUBST(DSO_CFLAGS)
AC_SUBST(DSO_PIC_CFLAGS)
AC_SUBST(DSO_LDOPTS)
AC_SUBST(LIB_PREFIX)
AC_SUBST(DLL_PREFIX)
AC_SUBST(DLL_SUFFIX)
AC_DEFINE_UNQUOTED(MOZ_DLL_SUFFIX, "$DLL_SUFFIX")
AC_SUBST(LIB_SUFFIX)
AC_SUBST(OBJ_SUFFIX)
AC_SUBST(BIN_SUFFIX)
AC_SUBST(ASM_SUFFIX)
AC_SUBST(IMPORT_LIB_SUFFIX)
AC_SUBST(USE_N32)
AC_SUBST(CC_VERSION)
AC_SUBST(CXX_VERSION)
AC_SUBST(MSMANIFEST_TOOL)

if test "$USING_HCC"; then
   CC='${topsrcdir}/build/hcc'
   CC="$CC '$_OLDCC'"
   CXX='${topsrcdir}/build/hcpp'
   CXX="$CXX '$_OLDCXX'"
   AC_SUBST(CC)
   AC_SUBST(CXX)
fi

dnl Check for missing components
if test "$COMPILE_ENVIRONMENT"; then
if test "$MOZ_X11"; then
    dnl ====================================================
    dnl = Check if X headers exist
    dnl ====================================================
    _SAVE_CFLAGS=$CFLAGS
    CFLAGS="$CFLAGS $XCFLAGS"
    AC_TRY_COMPILE([
        #include <stdio.h>
        #include <X11/Xlib.h>
        #include <X11/Intrinsic.h>
    ],
    [
        Display *dpy = 0;
        if ((dpy = XOpenDisplay(NULL)) == NULL) {
            fprintf(stderr, ": can't open %s\n", XDisplayName(NULL));
            exit(1);
        }
    ], [], 
    [ AC_MSG_ERROR([Could not compile basic X program.]) ])
    CFLAGS="$_SAVE_CFLAGS"

    if test ! -z "$MISSING_X"; then
        AC_MSG_ERROR([ Could not find the following X libraries: $MISSING_X ]);
    fi

fi # MOZ_X11
fi # COMPILE_ENVIRONMENT

dnl Set various defines and substitutions
dnl ========================================================

if test "$OS_ARCH" = "OS2" -a "$VACPP" = "yes"; then
      LIBS='so32dll.lib tcp32dll.lib'
elif test "$OS_ARCH" = "BeOS"; then
  AC_DEFINE(XP_BEOS)
  MOZ_MOVEMAIL=1
elif test "$OS_ARCH" = "Darwin"; then
  AC_DEFINE(XP_UNIX)
  AC_DEFINE(UNIX_ASYNC_DNS)
  MOZ_MOVEMAIL=1
elif test "$OS_ARCH" = "OpenVMS"; then
  AC_DEFINE(XP_UNIX)
elif test "$OS_ARCH" != "WINNT" -a "$OS_ARCH" != "OS2" -a "$OS_ARCH" != "WINCE"; then
  AC_DEFINE(XP_UNIX)
  AC_DEFINE(UNIX_ASYNC_DNS)
  MOZ_MOVEMAIL=1
fi
AC_SUBST(MOZ_MOVEMAIL)

AC_DEFINE(JS_THREADSAFE)

if test "$MOZ_DEBUG"; then
    AC_DEFINE(MOZ_REFLOW_PERF)
    AC_DEFINE(MOZ_REFLOW_PERF_DSP)
fi

if test "$ACCESSIBILITY" -a "$MOZ_ENABLE_GTK2" ; then
    AC_DEFINE(MOZ_ACCESSIBILITY_ATK)
    ATK_FULL_VERSION=`$PKG_CONFIG --modversion atk`
    ATK_MAJOR_VERSION=`echo ${ATK_FULL_VERSION} | $AWK -F\. '{ print $1 }'`
    ATK_MINOR_VERSION=`echo ${ATK_FULL_VERSION} | $AWK -F\. '{ print $2 }'`
    ATK_REV_VERSION=`echo ${ATK_FULL_VERSION} | $AWK -F\. '{ print $3 }'`
    AC_DEFINE_UNQUOTED(ATK_MAJOR_VERSION, $ATK_MAJOR_VERSION)
    AC_DEFINE_UNQUOTED(ATK_MINOR_VERSION, $ATK_MINOR_VERSION)
    AC_DEFINE_UNQUOTED(ATK_REV_VERSION, $ATK_REV_VERSION)
fi

# Used for LD_LIBRARY_PATH of run_viewer target
LIBS_PATH=
for lib_arg in $NSPR_LIBS $TK_LIBS; do
  case $lib_arg in
    -L* ) LIBS_PATH="${LIBS_PATH:+$LIBS_PATH:}"`expr $lib_arg : "-L\(.*\)"` ;;
      * ) ;;
  esac
done
AC_SUBST(LIBS_PATH)

dnl ========================================================
dnl Use cygwin wrapper for win32 builds, except MSYS/MinGW
dnl ========================================================
case "$host_os" in
mingw*)
    WIN_TOP_SRC=`cd $srcdir; pwd -W`
    ;;
cygwin*|msvc*|mks*)
    HOST_CC="\$(CYGWIN_WRAPPER) $HOST_CC"
    HOST_CXX="\$(CYGWIN_WRAPPER) $HOST_CXX"
    CC="\$(CYGWIN_WRAPPER) $CC"
    CXX="\$(CYGWIN_WRAPPER) $CXX"
    CPP="\$(CYGWIN_WRAPPER) $CPP"
    LD="\$(CYGWIN_WRAPPER) $LD"
    AS="\$(CYGWIN_WRAPPER) $AS"
    RC="\$(CYGWIN_WRAPPER) $RC"
    MIDL="\$(CYGWIN_WRAPPER) $MIDL"
    CYGDRIVE_MOUNT=`mount -p | awk '{ if (/^\//) { print $1; exit } }'`
    WIN_TOP_SRC=`cygpath -a -w $srcdir | sed -e 's|\\\\|/|g'`
    ;;
esac

AC_SUBST(CYGDRIVE_MOUNT)
AC_SUBST(WIN_TOP_SRC)

AC_SUBST(MOZILLA_VERSION)

. ${srcdir}/config/chrome-versions.sh
AC_DEFINE_UNQUOTED(MOZILLA_LOCALE_VERSION,"$MOZILLA_LOCALE_VERSION")
AC_DEFINE_UNQUOTED(MOZILLA_REGION_VERSION,"$MOZILLA_REGION_VERSION")
AC_DEFINE_UNQUOTED(MOZILLA_SKIN_VERSION,"$MOZILLA_SKIN_VERSION")

AC_SUBST(ac_configure_args)

dnl Spit out some output
dnl ========================================================

dnl The following defines are used by xpcom
_NON_GLOBAL_ACDEFINES="$_NON_GLOBAL_ACDEFINES
CPP_THROW_NEW
HAVE_CPP_2BYTE_WCHAR_T
HAVE_CPP_ACCESS_CHANGING_USING
HAVE_CPP_AMBIGUITY_RESOLVING_USING
HAVE_CPP_BOOL
HAVE_CPP_DYNAMIC_CAST_TO_VOID_PTR
HAVE_CPP_EXPLICIT
HAVE_CPP_MODERN_SPECIALIZE_TEMPLATE_SYNTAX
HAVE_CPP_NAMESPACE_STD
HAVE_CPP_NEW_CASTS
HAVE_CPP_PARTIAL_SPECIALIZATION
HAVE_CPP_TROUBLE_COMPARING_TO_ZERO
HAVE_CPP_TYPENAME
HAVE_CPP_UNAMBIGUOUS_STD_NOTEQUAL
HAVE_STATVFS
NEED_CPP_UNUSED_IMPLEMENTATIONS
NEW_H
HAVE_GETPAGESIZE
HAVE_ICONV
HAVE_ICONV_WITH_CONST_INPUT
HAVE_MBRTOWC
HAVE_SYS_MOUNT_H
HAVE_SYS_VFS_H
HAVE_WCRTOMB
MOZ_V1_STRING_ABI
"

AC_CONFIG_HEADER(
gfx/gfx-config.h
netwerk/necko-config.h
xpcom/xpcom-config.h
xpcom/xpcom-private.h
)

# Save the defines header file before autoconf removes it.
# (Do not add AC_DEFINE calls after this line.)
  _CONFIG_TMP=confdefs-tmp.h
  _CONFIG_DEFS_H=mozilla-config.h

  cat > $_CONFIG_TMP <<\EOF
/* List of defines generated by configure. Included with preprocessor flag,
 * -include, to avoid long list of -D defines on the compile command-line.
 * Do not edit.
 */

#ifndef _MOZILLA_CONFIG_H_
#define _MOZILLA_CONFIG_H_
EOF

_EGREP_PATTERN='^#define ('
if test -n "$_NON_GLOBAL_ACDEFINES"; then
    for f in $_NON_GLOBAL_ACDEFINES; do
        _EGREP_PATTERN="${_EGREP_PATTERN}$f|"
    done
fi
_EGREP_PATTERN="${_EGREP_PATTERN}dummy_never_defined)"
 
  sort confdefs.h | egrep -v "$_EGREP_PATTERN" >> $_CONFIG_TMP

  cat >> $_CONFIG_TMP <<\EOF

#endif /* _MOZILLA_CONFIG_H_ */

EOF

  # Only write mozilla-config.h when something changes (or it doesn't exist)
  if cmp -s $_CONFIG_TMP $_CONFIG_DEFS_H; then
    rm $_CONFIG_TMP
  else
    AC_MSG_RESULT("creating $_CONFIG_DEFS_H")
    mv -f $_CONFIG_TMP $_CONFIG_DEFS_H

    echo ==== $_CONFIG_DEFS_H =================================
    cat $_CONFIG_DEFS_H
  fi

dnl Probably shouldn't call this manually but we always want the output of DEFS
rm -f confdefs.h.save
mv confdefs.h confdefs.h.save
egrep -v "$_EGREP_PATTERN" confdefs.h.save > confdefs.h
AC_OUTPUT_MAKE_DEFS()
MOZ_DEFINES=$DEFS
AC_SUBST(MOZ_DEFINES)
rm -f confdefs.h
mv confdefs.h.save confdefs.h

dnl Load the list of Makefiles to generate.
dnl   To add new Makefiles, edit allmakefiles.sh.
dnl   allmakefiles.sh sets the variable, MAKEFILES.
. ${srcdir}/allmakefiles.sh
dnl 
dnl Run a perl script to quickly create the makefiles.
dnl If it succeeds, it outputs a shell command to set CONFIG_FILES
dnl   for the files it cannot handle correctly. This way, config.status
dnl   will handle these files.
dnl If it fails, nothing is set and config.status will run as usual.
dnl
dnl This does not change the $MAKEFILES variable.
dnl
dnl OpenVMS gets a line overflow on the long eval command, so use a temp file.
dnl
if test -z "${AS_PERL}"; then
echo $MAKEFILES | ${PERL} $srcdir/build/autoconf/acoutput-fast.pl > conftest.sh
else
echo $MAKEFILES | ${PERL} $srcdir/build/autoconf/acoutput-fast.pl -nowrap --cygwin-srcdir=$srcdir > conftest.sh
fi
. ./conftest.sh
rm conftest.sh

echo $MAKEFILES > unallmakefiles

AC_OUTPUT($MAKEFILES)

dnl ========================================================
dnl = Setup a nice relatively clean build environment for
dnl = sub-configures.
dnl ========================================================
CC="$_SUBDIR_CC" 
CXX="$_SUBDIR_CXX" 
CFLAGS="$_SUBDIR_CFLAGS" 
CPPFLAGS="$_SUBDIR_CPPFLAGS"
CXXFLAGS="$_SUBDIR_CXXFLAGS"
LDFLAGS="$_SUBDIR_LDFLAGS"
HOST_CC="$_SUBDIR_HOST_CC" 
HOST_CFLAGS="$_SUBDIR_HOST_CFLAGS"
HOST_LDFLAGS="$_SUBDIR_HOST_LDFLAGS"
RC=

unset MAKEFILES
unset CONFIG_FILES

if test "$COMPILE_ENVIRONMENT"; then
if test -z "$MOZ_NATIVE_NSPR" || test "$MOZ_LDAP_XPCOM"; then
    ac_configure_args="$_SUBDIR_CONFIG_ARGS --with-dist-prefix=$MOZ_BUILD_ROOT/dist --with-mozilla"
    if test -z "$MOZ_DEBUG"; then
        ac_configure_args="$ac_configure_args --disable-debug"
    fi
    if test "$MOZ_OPTIMIZE" = "1"; then
        ac_configure_args="$ac_configure_args --enable-optimize"
    fi
    if test "$OS_ARCH" = "WINNT" && test "$NS_TRACE_MALLOC"; then
       ac_configure_args="$ac_configure_args --enable-debug --disable-optimize"
    fi
    if test -n "$HAVE_64BIT_OS"; then
        ac_configure_args="$ac_configure_args --enable-64bit"
    fi
    AC_OUTPUT_SUBDIRS(nsprpub)
    ac_configure_args="$_SUBDIR_CONFIG_ARGS"
fi

if test -z "$MOZ_NATIVE_NSPR"; then
    # Hack to deal with the fact that we use NSPR_CFLAGS everywhere
    AC_MSG_WARN([Recreating autoconf.mk with updated nspr-config output])
    if test ! "$VACPP" && test "$OS_ARCH" != "WINNT" && test "$OS_ARCH" != "WINCE"; then
       _libs=`./nsprpub/config/nspr-config --prefix=$\(LIBXUL_DIST\) --exec-prefix=$\(DIST\) --libdir=$\(LIBXUL_DIST\)/lib --libs`
       $PERL -pi.bak -e "s '^NSPR_LIBS\\s*=.*'NSPR_LIBS = $_libs'" config/autoconf.mk
    fi
    if test "$OS_ARCH" != "WINNT" && test "$OS_ARCH" != "WINCE" ; then
       _cflags=`./nsprpub/config/nspr-config --prefix=$\(LIBXUL_DIST\) --exec-prefix=$\(DIST\) --includedir=$\(LIBXUL_DIST\)/include/nspr --cflags`
       $PERL -pi.bak -e "s '^NSPR_CFLAGS\\s*=.*'NSPR_CFLAGS = $_cflags'" config/autoconf.mk
    fi
    rm -f config/autoconf.mk.bak
fi

# if we're building the LDAP XPCOM component, we need to build 
# the c-sdk first.  
#
if test "$MOZ_LDAP_XPCOM"; then

    # these subdirs may not yet have been created in the build tree.
    # don't use the "-p" switch to mkdir, since not all platforms have it
    #
    if test ! -d "directory"; then
        mkdir "directory"
    fi
    if test ! -d "directory/c-sdk"; then
        mkdir "directory/c-sdk"    
    fi
    if test ! -d "directory/c-sdk/ldap"; then
        mkdir "directory/c-sdk/ldap"    
    fi

    ac_configure_args="$_SUBDIR_CONFIG_ARGS --prefix=$MOZ_BUILD_ROOT/dist --with-dist-prefix=$MOZ_BUILD_ROOT/dist --without-nss --with-mozilla"
    if test -z "$MOZ_DEBUG"; then
        ac_configure_args="$ac_configure_args --disable-debug"
    fi
    if test "$MOZ_OPTIMIZE" = "1"; then
        ac_configure_args="$ac_configure_args --enable-optimize"
    fi
    if test -n "$HAVE_64BIT_OS"; then
        ac_configure_args="$ac_configure_args --enable-64bit"
    fi
    AC_OUTPUT_SUBDIRS(directory/c-sdk)
    ac_configure_args="$_SUBDIR_CONFIG_ARGS"
fi
fi # COMPILE_ENVIRONMENT