mozilla-history/configure.in

dnl The contents of this file are subject to the Mozilla Public License
dnl Version 1.0 (the "License"); you may not use this file except in
dnl compliance with the License. You may obtain a copy of the License
dnl at http://www.mozilla.org/MPL/
dnl 
dnl Software distributed under the License is distributed on an "AS IS"
dnl basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See 
dnl the License for the specific language governing rights and 
dnl limitations under the License.
dnl 
dnl The Original Code is this file as it was released upon August 6, 1998.
dnl
dnl The Initial Developer of this code under the MPL is Christopher
dnl Seawood, <cls@seawood.org>.  Portions created by Christopher Seawood 
dnl are Copyright (C) 1998 Christopher Seawood.  All Rights Reserved.
dnl
dnl Contributors:
dnl Jamie Zawinski <jwz@jwz.org>
dnl    gettimeofday args check
dnl
dnl Christopher Blizzard <blizzard@appliedtheory.com>
dnl    gnomefe update & enable-pthreads
dnl
dnl Ramiro Estrugo <ramiro@netscape.com>
dnl    X11 makedepend support
dnl    Insure support.
dnl
dnl Process this file with autoconf to produce a configure script.
dnl ========================================================

AC_PREREQ(2.12)
AC_INIT(config/config.mk)
AC_CONFIG_AUX_DIR(${srcdir}/build/autoconf)
AC_CANONICAL_SYSTEM

dnl Set this define to make fixes w/o breaking anything else.
AC_DEFINE(USE_AUTOCONF)

dnl Always set this for mozilla.
AC_DEFINE(MOZILLA_CLIENT)

dnl ========================================================
dnl =
dnl = Dont change the following two lines.  Doing so breaks:
dnl =
dnl = CFLAGS="-foo" ./configure
dnl =
dnl ========================================================
CFLAGS="${CFLAGS=}"
CXXFLAGS="${CXXFLAGS=}"

dnl Set the version number of the libs included with mozilla
dnl ========================================================
MOZJPEG=62
MOZPNG=95
NSPR_VERSION=3

dnl Set the minimum version of toolkit libs used by mozilla
dnl ========================================================
GTK_VERSION=1.2.0
LIBIDL_VERSION=0.6.3

dnl Set various checks
dnl ========================================================
MISSING_FULLCIRCLE=
MISSING_MOTIF=
MISSING_NSPR=
MISSING_X=

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 -f client.mk cleansrcdir
	***
	EOF
    exit 1
    break
  fi
fi

dnl Checks for programs.
dnl ========================================================
AC_PROG_CC
AC_PROG_CXX
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
AC_PROG_CPP
AC_PROG_CXXCPP
AC_PROG_INSTALL
AC_PROG_AWK
AC_PROG_RANLIB

dnl Be sure the make we use is GNU make.
AC_PATH_PROGS(MAKE, gmake make, :)
_make_try=`$MAKE --version 2>/dev/null`
if test ! "$_make_try"
then
	echo
	echo "*** $MAKE is not GNU Make.  You will not be able to build Mozilla without GNU Make."
	echo
	exit 1
fi
dnl Now warn about version 3.77 if we find it.
_make_vers=`$MAKE --version | grep Make | $AWK '{ print \$4 }' | sed 's/,//'`
if test "$_make_vers" = "3.77"
then
	echo
	echo "*** Found GNU Make 3.77.  This version is known to have problems with the"
	echo "*** wildcard function in certain circumstances.  You may experience infinite"
	echo "*** looping while building Mozilla with 3.77.  If this happens, you can"
	echo "*** either downgrade to 3.76.1 or try configuring with --disable-md."
	echo
fi

AC_PROG_MAKE_SET

dnl Support for X11 makedepend, if found on the system
dnl ========================================================
AC_PATH_PROG(SYSTEM_MAKEDEPEND,makedepend)

AC_PATH_PROGS(EMACS, xemacs lemacs emacs, :)
AC_PATH_PROGS(PERL, perl5 perl, :)
AC_PATH_PROG(WHOAMI, whoami, :)
AC_PATH_PROG(UNZIP, unzip, :)
AC_PATH_PROG(ZIP, zip, :)

AC_PATH_XTRA

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

GNU_CC=
GNU_CXX=
if test "$GCC" = "yes"; then
    GNU_CC=1
fi
if test "$GXX" = "yes"; then
    GNU_CXX=1
fi

AC_SUBST(GNU_CC)
AC_SUBST(GNU_CXX)

dnl set the defaults first
dnl ========================================================
AR='ar cr $@'
AS=
AS_DASH_C_FLAG='-c'
NS_USE_NATIVE=
DLL_SUFFIX="so"

dnl GNU specific defaults
dnl ========================================================
if test "$GNU_CC"; then
    MKSHLIB='$(CXX) $(DSO_LDOPTS)'
    MKCSHLIB='$(CC) $(DSO_LDOPTS)'
    DSO_LDOPTS='-shared -Wl,-h -Wl,$(@:$(OBJDIR)/%.$(DLL_SUFFIX)=%.$(DLL_SUFFIX))'
    DSO_CFLAGS='-fPIC'

    # Turn on GNU specific features
    # -Wall - turn on all warnings
    # -pedantic - make compiler warn about non-ANSI stuff, and
    #             be a little bit stricter
    # -pipe     - speeds up the build a little by using pipes rather than
    #             temp files
    _WARNINGS_CFLAGS="${_WARNINGS_CFLAGS} -Wall -Wconversion -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-align"

    _DEFINES_CFLAGS='-include $(DEPTH)/config-defs.h'
    _USE_CPP_INCLUDE_FLAG=1
else
    MKSHLIB='$(LD) $(DSO_LDOPTS)'
    MKCSHLIB='$(LD) $(DSO_LDOPTS)'
    DSO_LDOPTS='-shared -h $(@:$(OBJDIR)/%.$(DLL_SUFFIX)=%.$(DLL_SUFFIX))'
    DSO_CFLAGS='-KPIC'
    _DEFINES_CFLAGS='$(ACDEFINES)'
fi

if test "$GNU_CXX"; then
    # Turn on GNU specific features
    _WARNINGS_CXXFLAGS="${_WARNINGS_CXXFLAGS} -Wall -Wconversion -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-align -Woverloaded-virtual -Wsynth"

    _DEFINES_CXXFLAGS='-include $(DEPTH)/config-defs.h'
    _USE_CPP_INCLUDE_FLAG=1
else
    _DEFINES_CXXFLAGS='$(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 "$GNU_CC"; then
  AC_MSG_CHECKING(whether ld has archive extraction flags)
  AC_CACHE_VAL(ac_cv_mkshlib_force_and_unforce,
   [_SAVE_LDFLAGS=$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

dnl System overrides of the defaults
dnl ========================================================
case "$target" in
*-aix*)
    if test ! "$GNU_CC"; then
	DSO_LDOPTS='-ldl -bM:SRE -brtl -bso -berok -bexpall -bnoentry'
	DSO_CFLAGS='-DPIC -qflag=w:w'
    fi
    MKSHLIB='$(AIX_SHLIB_BIN) -p1 -brtl -bso -berok'
    MKCSHLIB='$(AIX_SHLIB_BIN) -p1 -brtl -bso -berok'
    AS='$(CC)'
    ;;

*-bsdi*)
    case `uname -r` in
	4.*) ;;
	*)
	    DSO_CFLAGS=''
	    DSO_LDOPTS='-r'
	    _WARNINGS_CFLAGS="-Wall"
	    _WARNINGS_CXXFLAGS="-Wall"
	;;
    esac
    ;;

*-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
    ;; 

*-hpux*)
    DLL_SUFFIX="sl"
    if test ! "$GNU_CC"; then
	DSO_CFLAGS="+Z"
    fi
    DSO_LDOPTS='-b -E -L$(DIST)/bin'
    MKSHLIB='$(LD) $(DSO_LDOPTS)'
    MKCSHLIB='$(LD) $(DSO_LDOPTS)'
    ;;

*-irix5*)
    DSO_LDOPTS='-elf -shared'
    MKSHLIB_FORCE_ALL='-all'
    MKSHLIB_UNFORCE_ALL='-none'
    ;;

*-irix6*)
    AC_DEFINE(IRIX6_3)
    DSO_LDOPTS='-elf -shared'
    MKSHLIB='$(CCC) $(DSO_LDOPTS)'
    MKCSHLIB='$(CC) $(DSO_LDOPTS)'
    dnl I think this will probably break builds using both gcc and GNU ld.
    MKSHLIB_FORCE_ALL='-Wl,-all'
    MKSHLIB_UNFORCE_ALL='-Wl,-none'
    if test "$GNU_CC"; then
       _WARNINGS_CFLAGS="-Wall"
       _WARNINGS_CXXFLAGS="-Wall"
    else
       CFLAGS="$CFLAGS -woff 3262"
       CXXFLAGS="$CXXFLAGS -woff 3262"
    fi
    ;;

dnl Linux Alpha needs -mieee for FPU to work correctly
alpha*-*-linux*)
    CFLAGS="$CFLAGS -mieee"
    CXXFLAGS="$CXXFLAGS -mieee"
    ;;

*-netbsd*)
    DLL_SUFFIX="so.1.0"
    DSO_CFLAGS='-fPIC'
    CFLAGS="$CFLAGS -Dunix"
    CXXFLAGS="$CXXFLAGS -Dunix"
    case `uname -m` in
	*86)
		MKSHLIB='$(LD) $(DSO_LDOPTS)'
		MKCSHLIB='$(LD) $(DSO_LDOPTS)'
		;;
    esac
    dnl Test for a.out platform and handle C++ libraries correctly
    if $CC -E - -dM </dev/null | grep -v __ELF__ >/dev/null; then
	DSO_LDOPTS="-shared"
    fi
    if test "$LIBRUNPATH"; then
	DSO_LDOPTS="-R$LIBRUNPATH $DSO_LDOPTS"
    fi
    ;;

*-openbsd*)
    DLL_SUFFIX="so.1.0"
    DSO_CFLAGS='-fPIC'
    DSO_LDOPTS='-shared -h $(@:$(OBJDIR)/%.$(DLL_SUFFIX)=%.$(DLL_SUFFIX))'
    MKSHLIB='$(LD) $(DSO_LDOPTS)'
    MKCSHLIB='$(LD) $(DSO_LDOPTS)'
    if $CC -E - -dM </dev/null | grep -v __ELF__ >/dev/null; then
	DSO_LDOPTS="-Bshareable /usr/lib/c++rt0.o"
    fi
    if test "$LIBRUNPATH"; then
	DSO_LDOPTS="-R$LIBRUNPATH $DSO_LDOPTS"
    fi
    ;;

*-openvms*) 
    DLL_SUFFIX="exe"
    ;;

alpha*-*-osf*)
    if test "$GNU_CC"; then
        DSO_LDOPTS='-shared -Wl,-soname -Wl,$(@:$(OBJDIR)/%.$(DLL_SUFFIX)=%.$(DLL_SUFFIX))'
    else
	CFLAGS="$CFLAGS -std1 -ieee_with_inexact"
	CXXFLAGS="$CXXFLAGS -std1 -ieee_with_inexact"
        DSO_LDOPTS='-shared -msym -expect_unresolved \* -soname $(@:$(OBJDIR)/%.$(DLL_SUFFIX)=%.$(DLL_SUFFIX))'
        DSO_CFLAGS=
        MKSHLIB_FORCE_ALL='-all'
        MKSHLIB_UNFORCE_ALL='-none'
    fi
    ;;

*-rhapsody*) 
    DLL_SUFFIX="dylib"
    ;;

*-sco*) 
    if test ! "$GNU_CC"; then
       DSO_LDOPTS='-G -h $(@:$(OBJDIR)/%.$(DLL_SUFFIX)=%.$(DLL_SUFFIX))'
    fi
    ;;

dnl the qsort routine under solaris is faulty
*-solaris*) 
    AC_DEFINE(BROKEN_QSORT)
    if test ! "$GNU_CC"; then
       LDFLAGS='-xildoff'
       MKSHLIB='$(CXX) $(DSO_LDOPTS)'
       MKCSHLIB='$(CC) $(DSO_LDOPTS)'
       MKSHLIB_FORCE_ALL='-z allextract'
       MKSHLIB_UNFORCE_ALL=''
       DSO_LDOPTS='-G -h $(@:$(OBJDIR)/%.$(DLL_SUFFIX)=%.$(DLL_SUFFIX))'
       AR='$(CXX) -xar -o $@'
       AS='/usr/ccs/bin/as'
       AS_DASH_C_FLAG=''
       NS_USE_NATIVE=1
       case `uname -m` in
         sun4u)
           ASFLAGS='-xarch=v8plus -DULTRA_SPARC -P -L -D_ASM -D__STDC__=0 -K PIC'
           ;;
         *)
           ASFLAGS='-xarch=v8 -P -L -D_ASM -D__STDC__=0 -K PIC'
           ;;
       esac
    else
       MKSHLIB='$(CC) $(DSO_LDOPTS)'
       _WARNINGS_CFLAGS=''
       _WARNINGS_CXXFLAGS=''
       AS='$(CC)'
       ASFLAGS='$(CFLAGS)'
    fi
    ;;

*-sunos*) 
    AS='$(CC)'
    ASFLAGS='$(CFLAGS)'
    DSO_LDOPTS=''
    MKSHLIB='$(LD) $(DSO_LDOPTS)'
    MKCSHLIB='$(LD) $(DSO_LDOPTS)'
    ;;

esac

dnl Checks for X libraries.
dnl Ordering is important.
dnl Xt is dependent upon SM as of X11R6
dnl ========================================================
if test "$no_x" != "yes"; then
_SAVE_LDFLAGS="$LDFLAGS"
LDFLAGS="$XLDFLAGS $LDFLAGS"
AC_CHECK_LIB(X11, XDrawLines, [XLIBS="-lX11 $XLIBS"],
	[MISSING_X="$MISSING_X -lX11"], $XLIBS)
AC_CHECK_LIB(Xext, XextAddDisplay, [XLIBS="-lXext $XLIBS"],
	[MISSING_X="$MISSING_X -lXext"], $XLIBS)
AC_CHECK_LIB(ICE, IceFlush, [XLIBS="-lICE $XLIBS"],, $XLIBS)
AC_CHECK_LIB(SM, SmcCloseConnection, [XLIBS="-lSM $XLIBS"],, $XLIBS)
AC_CHECK_LIB(Xt, XtFree, [XLIBS="-lXt $XLIBS"],
	[MISSING_X="$MISSING_X -lXt"], $XLIBS)
AC_CHECK_LIB(Xmu, XmuLookupString, [XLIBS="-lXmu $XLIBS"],
	[MISSING_X="$MISSING_X -lXmu"], $XLIBS)
LDFLAGS="$_SAVE_LDFLAGS"

dnl Check for toolkit libs
dnl ========================================================
useRhapsody=`echo $target_os | egrep "^Rhapsody"`
AC_ARG_ENABLE(toolkit,
[  --enable-toolkit=\$val   Enable \$val fe (defaults to gtk)],
  [if test "$enableval" = "motif" \
        -o "$enableval" = "gtk" \
        -o "$enableval" = "xlib" \
        -o "$useRhapsody" ; then
     dnl nglayout only supports building with one toolkit,
     dnl so ignore everything after the first comma (",").
     MOZ_TOOLKIT=`echo "$enableval" | sed -e "s/,.*$//"`
   else
     AC_MSG_ERROR(Toolkit must be Xlib, GTK or Motif.)
   fi], 
  [if test "$useRhapsody" ; then
     MOZ_TOOLKIT="rhapsody"
   else
     MOZ_TOOLKIT="gtk"
   fi])

if echo ":$MOZ_TOOLKIT" | grep "motif" >/dev/null; then
if test "$no_x" != "yes"; then
    if test "$x_includes"; then
	MOTIF_XINCS="-xif -I$x_includes"
    fi

    detect_motif="${srcdir}/config/mkdetect/detect_motif.sh -cc $CC $MOTIF_XINCS"
    MOTIF_VERSION=`${detect_motif}`
    MOTIF_INCLUDES=`${detect_motif} -if`
    MOTIF_STATIC_FLAGS=`${detect_motif} -sf`
    MOTIF_DYNAMIC_FLAGS=`${detect_motif} -df`
    MOTIF_DYNAMIC_PATHS=`${detect_motif} -dp`
dnl    MOTIF_REQUIRES_XPM=`${detect_motif} -xpm`
    MOTIF_REQUIRES_XPM="False"

    ${srcdir}/config/mkdetect/detect_motif.sh --cleanup
fi

    if test "$MOTIF_REQUIRES_XPM" = "True" -o "$MOTIF_VERSION" = "2.1"; then
        _SAVE_LDFLAGS="$LDFLAGS"
    	LDFLAGS="$XLDFLAGS $LDFLAGS"
	if test "$MOTIF_REQUIRES_XPM" = "True"; then
	    AC_CHECK_LIB(Xpm, XpmWriteFileFromImage, 
		TK_LIBS="-lXpm $TK_LIBS", 
		[MISSING_MOTIF="$MISSING_MOTIF -lXpm"], $XLIBS)
	fi
	if test "$MOTIF_VERSION" = "2.1"; then
	    AC_CHECK_LIB(Xp, XpGetPrinterList, 
		TK_LIBS="-lXp $TK_LIBS",
		[MISSING_MOTIF="$MISSING_MOTIF -lXp"], $XLIBS)
	fi
	TK_LIBS="$XLDFLAGS $TK_LIBS"
	LDFLAGS="$_SAVE_LDFLAGS"
    fi

    if test "$MOTIF_STATIC_LIB" = "unknown" \
         -a "$MOTIF_DYNAMIC_LIB" = "unknown"; then
	AC_ERROR("Cannot find either dynamic or static Motif libraries.")
    fi

    # Get rid of offending error values
    if test "$MOTIF_DYNAMIC_PATHS" = "unknown"; then 
	MOTIF_DYNAMIC_PATHS=
    fi

    if test "$MOTIF_DYNAMIC_FLAGS" = "unknown"; then 
	MOTIF_DYNAMIC_FLAGS=
    fi

    if test "$MOTIF_STATIC_FLAGS" = "unknown"; then 
	MOTIF_STATIC_FLAGS=
    fi

    if test "$MOTIF_INCLUDE_DIR" = "unknown"; then
	MOTIF_INCLUDE_DIR=
    fi

    AC_ARG_WITH(static-motif,
    [  --with-static-motif     link Motif statically if possible],
	sysstaticmotif=$withval)

    if test "$sysstaticmotif" != "yes"; then
	_SAVE_LDFLAGS="$LDFLAGS"
    	LDFLAGS="$MOTIF_DYNAMIC_PATHS $XLDFLAGS $LDFLAGS"
    	AC_CHECK_LIB(Xm, XmStringCreate, 
	    TK_LIBS="$MOTIF_DYNAMIC_PATHS $MOTIF_DYNAMIC_FLAGS $TK_LIBS",
	    [MISSING_MOTIF="$MISSING_MOTIF $MOTIF_DYNAMIC_FLAGS"], 
	    $MOTIF_DYNAMIC_PATHS $TK_LIBS $XLIBS)
	LDFLAGS="$_SAVE_LDFLAGS"
    else
    	AC_CHECK_LIB(Xm, XmStringCreate, 
	    TK_LIBS="$MOTIF_STATIC_FLAGS $TK_LIBS",
	    [MISSING_MOTIF="$MISSING_MOTIF $MOTIF_STATIC_FLAGS"], 
	    $TK_LIBS $XLIBS)
    fi

    TK_CFLAGS="$MOTIF_INCLUDES"
fi

if echo ":$MOZ_TOOLKIT" | grep "gtk" >/dev/null; then
    AM_PATH_GTK($GTK_VERSION,,
      AC_MSG_ERROR(Test for GTK failed.))

    AC_ARG_WITH(static-gtk,
    [  --with-static-gtk       link gtk statically if possible],
	sysstaticgtk=$withval)

    if test "$sysstaticgtk" != "yes"; then
       TK_LIBS=$GTK_LIBS
    else
       changequote(,)

       GTK_LIBS_LOC=`echo $GTK_LIBS | sed 's/\(.*\)\(-lgtk.*\)/\1/'`

       GTK_STATIC_LOC=`echo $GTK_LIBS | sed 's/^ *-L\([^ ]*\) .*$/\1/'`
       GTK_STATIC=`echo $GTK_LIBS | sed 's/^.*-l\(gtk[^ ]*\) .*/\1/'`
       GDK_STATIC=`echo $GTK_LIBS | sed 's/^.*-l\(gdk[^ ]*\) .*/\1/'`

       GLIB_STATIC_LOC=`echo $GTK_LIBS | sed -e 's/^.*-lgdk[^ ]* *-L\([^ ]*\).*$/\1/' -e 's/^.* -lgdk[^ ]* .*$//'`
       if test ! "$GLIB_STATIC_LOC" ; then
         GLIB_STATIC_LOC=$GTK_STATIC_LOC
       fi
       GMODULE_STATIC=`echo $GTK_LIBS | sed 's/^.*-l\(gmodule[^ ]*\) .*/\1/'`
       GLIB_STATIC=`echo $GTK_LIBS | sed 's/^.*-l\(glib[^ ]*\) .*/\1/'`

       GTK_OTHER_LIBS=`echo $GTK_LIBS | sed 's/^.*-lglib *\(.*\)/\1/'`

       changequote([,])

       TK_LIBS="$GTK_STATIC_LOC/lib${GTK_STATIC}.a"
       TK_LIBS="$TK_LIBS $GTK_STATIC_LOC/lib${GDK_STATIC}.a"
       TK_LIBS="$TK_LIBS $GLIB_STATIC_LOC/lib${GMODULE_STATIC}.a"
       TK_LIBS="$TK_LIBS $GLIB_STATIC_LOC/lib${GLIB_STATIC}.a"
       TK_LIBS="$TK_LIBS $GTK_LIBS_LOC $GTK_OTHER_LIBS"
    fi
    TK_CFLAGS=$GTK_CFLAGS
fi

# tk=xlib build.
if echo ":$MOZ_TOOLKIT" | grep "xlib" >/dev/null; then
    TK_CFLAGS='$(XCFLAGS)'
    TK_LIBS='$(XLDFLAGS) $(XLIBS)'
fi

fi # $no_x

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

XCFLAGS="$X_CFLAGS"

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

dnl Check for GLib and libIDL.
dnl ========================================================
SKIP_IDL_CHECK="no"

dnl RedHat 6.0 (Hedwig) ships with orbit which includes libIDL
if test -f /etc/redhat-release
then
	if egrep "Hedwig" /etc/redhat-release >/dev/null
	then
		if test -x /usr/bin/orbit-config
		then
			SKIP_IDL_CHECK="yes"
			BUILD_XPIDL=1
			LIBIDL_CFLAGS="-I/usr/lib/glib/include"
			LIBIDL_LIBS="-lglib -lIDL"
			AC_SUBST(LIBIDL_CFLAGS)
			AC_SUBST(LIBIDL_LIBS)
		fi
	fi
fi

if test "$SKIP_IDL_CHECK" = "no"
then
AM_PATH_LIBIDL($LIBIDL_VERSION,BUILD_XPIDL=1,
  [echo libIDL $LIBIDL_VERSION or higher is required.]
  [echo Get yourself a RPM or source package from ftp://ftp.mozilla.org/]
  [echo before your tree is HOSED.]
  [echo See http://www.rpi.edu/~veliaa/libIDL/ for more information.]
  [AC_MSG_ERROR(libIDL not installed.)])
fi

dnl Checks for typedefs, structures, and compiler characteristics.
dnl ========================================================
AC_C_CONST
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_UID_T
AC_STRUCT_ST_BLKSIZE
AC_STRUCT_ST_RDEV
AC_STRUCT_TM
AC_STRUCT_TIMEZONE

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 "$ac_cv_uint" = true ; then
  AC_DEFINE(HAVE_UINT)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi
AC_MSG_CHECKING(for uint_t)
AC_CACHE_VAL(ac_cv_uint_t,
 [AC_TRY_COMPILE([#include <stdio.h>
                  #include <sys/types.h>],
                 [uint foo = 0;],
                 [ac_cv_uint_t=true],
                 [ac_cv_uint_t=false])])
if test "$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 Checks for header files.
dnl ========================================================
AC_HEADER_DIRENT
dnl Already done above by AC_TYPE_MODE_T.
dnl AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_HEADER_TIME
AC_CHECK_HEADERS(fcntl.h limits.h malloc.h memory.h paths.h strings.h)
AC_CHECK_HEADERS(sys/bittypes.h sys/byteorder.h sys/file.h sys/ioctl.h sys/time.h)
AC_CHECK_HEADERS(getopt.h ioctl.h filio.h systeminfo.h compat.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)

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

dnl Checks for libraries.
dnl ========================================================
AC_CHECK_LIB(c_r, gethostbyname_r)
AC_CHECK_LIB(m, atan)
AC_CHECK_LIB(dl, dlopen)
if test ! "$GNU_CXX"; then
    AC_CHECK_LIB(C, demangle)
fi
AC_CHECK_LIB(resolv, res_gethostbyaddr)
AC_CHECK_LIB(socket, getnetbyaddr)
AC_CHECK_LIB(util, login)
AC_CHECK_LIB(nsl, xdr_string)
AC_CHECK_LIB(elf, elf_rawdata)
AC_CHECK_LIB(intl, textdomain)
AC_CHECK_LIB(posix4, shm_open)
AC_CHECK_LIB(w, iswupper)
AC_CHECK_LIB(l, yywrap,,
    AC_CHECK_LIB(fl, yywrap))

dnl Replace `main' with a function in -lC_r:
dnl AC_CHECK_LIB(C_r, main)
dnl Replace `main' with a function in -lSgm:
dnl AC_CHECK_LIB(Sgm, main)
dnl Replace `main' with a function in -laudio:
dnl AC_CHECK_LIB(audio, main)
dnl Replace `main' with a function in -ldld:
dnl AC_CHECK_LIB(dld, main)
dnl Replace `main' with a function in -ldnet_stub:
dnl AC_CHECK_LIB(dnet_stub, main)
dnl Replace `main' with a function in -lgen:
dnl AC_CHECK_LIB(gen, main)
dnl Replace `main' with a function in -lhash:
dnl AC_CHECK_LIB(hash, main)
dnl Replace `main' with a function in -lip6:
dnl AC_CHECK_LIB(ip6, main)
dnl Replace `main' with a function in -lipc:
dnl AC_CHECK_LIB(ipc, main)
dnl Replace `main' with a function in -lmalloc_cv:
dnl AC_CHECK_LIB(malloc_cv, main)
dnl Replace `main' with a function in -lPW:
dnl AC_CHECK_LIB(PW, main)
dnl Replace `main' with a function in -lots:
dnl AC_CHECK_LIB(ots, main)
dnl Replace `main' with a function in -lrt:
dnl AC_CHECK_LIB(rt, main)
dnl Replace `main' with a function in -lsvld:
dnl AC_CHECK_LIB(svld, main)

dnl ========================================================
dnl =
dnl = pthread support
dnl = 
dnl ========================================================
dnl 
dnl Start by checking whether the system support pthreads
dnl 

USE_PTHREADS=
PTHREAD_LDFLAGS=""

dnl 
dnl Try lib pthread
dnl 
AC_CHECK_LIB(pthread, pthread_attr_init, 
             USE_PTHREADS=1 PTHREAD_LDFLAGS="-lpthread")

dnl 
dnl If the above test failed, try lib c_r
dnl 
if test "x$ac_cv_lib_pthread_pthread_attr_init" = "xno" -a \
"x$ac_cv_lib_c_r_gethostbyname_r" = "xno"
then
  AC_CHECK_LIB(c_r, pthread_attr_init,
               USE_PTHREADS=1 PTHREAD_LDFLAGS="-lc_r")
fi

dnl
dnl Check the command line for --with-pthreads 
dnl
AC_ARG_WITH(pthreads,
[  --with-pthreads         use system pthread library ],
        [if test "$withval" = "yes"
         then
           if test "$USE_PTHREADS"x = x
           then
             AC_MSG_ERROR([ --with-pthreads specified for a system without pthread support ]);
           fi
         else
           USE_PTHREADS=
           PTHREAD_LDFLAGS=""
         fi] )

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 $? -eq 0; then
		if test -z "`egrep -i '(unrecognize|unknown)' conftest.out | grep pthread`" && test -z "`egrep -i '(error|incorrect)' conftest.out`" ; then
			ac_cv_have_dash_pthread=yes
			CFLAGS="$CFLAGS -pthread"
			CXXFLAGS="$CXXFLAGS -pthread"
		fi
	fi
	rm -f conftest*

	case "$target" in
	    *-*-solaris*) 
    			AC_DEFINE(_REENTRANT) 
			if test ! "$GNU_CC"; then
				CFLAGS="$CFLAGS -mt" 
				CXXFLAGS="$CXXFLAGS -mt" 
			fi
			;;

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

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

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

dnl
dnl Add the pthread flags to the nspr libs
dnl ========================================================
NSPR_LIBS="$NSPR_LIBS $PTHREAD_LDFLAGS"

dnl Check for NSPR.
dnl ========================================================
dnl 
dnl We always use the system NSPR from now on...this option
dnl tells where to find NSPR rather than whether to use it.
dnl ========================================================
AC_ARG_WITH(nspr,
[  --with-nspr=\$dir        location of nspr headers and libraries],
	NSPR_DIR=$withval)

AC_ARG_WITH(nsprlib,
[  --with-nsprlib=\$dir        location of nspr libraries],
	NSPR_LIBDIR=$withval)

_SAVE_CFLAGS=$CFLAGS
_SAVE_LDFLAGS=$LDFLAGS
_SAVE_LIBS=$LIBS
CFLAGS="$CFLAGS -I${NSPR_DIR}/include"
if test "$NSPR_LIBDIR"x = x; then
   LDFLAGS="$LDFLAGS -L${NSPR_DIR}/lib $NSPR_LIBS"
else
   LDFLAGS="$LDFLAGS -L${NSPR_LIBDIR} $NSPR_LIBS"
fi

AC_MSG_CHECKING("for PR_GetCurrentThread in -lnspr$NSPR_VERSION")
LIBS="-lnspr$NSPR_VERSION $NSPR_LIBS $LIBS"
AC_TRY_RUN(
	#include <stdio.h>
	#include <nspr.h>
	int main () {
	    PRThread *dummy = PR_GetCurrentThread();
	    exit(0);
	}
	, [NSPR_LIBS="-lnspr$NSPR_VERSION $NSPR_LIBS" result="yes"],
	[_NSPR_NEEDS_THREAD_LIB=1 result="no"], 
	[_NSPR_NEEDS_THREAD_LIB=1 result="no"] )
rm -f core
AC_MSG_RESULT("$result")

dnl XXX - Is this really the best way to do this check? - cls
if test "$_NSPR_NEEDS_THREAD_LIB" = 1; then

LIBS=$_SAVE_LIBS
AC_MSG_CHECKING("for PR_GetCurrentThread in -lnspr$NSPR_VERSION with thread lib")
    LIBS="-lnspr$NSPR_VERSION $NSPR_LIBS $LIBS"
    AC_TRY_RUN(
	#include <stdio.h>
	#include <nspr.h>
	int main () {
	    PRThread *dummy = PR_GetCurrentThread();
	    exit(0);
	}
	, [NSPR_LIBS="-lnspr$NSPR_VERSION $NSPR_LIBS" result="yes"],
	[MISSING_NSPR="$MISSING_NSPR -lnspr$NSPR_VERSION" result="no"], 
	[MISSING_NSPR="$MISSING_NSPR -lnspr$NSPR_VERSION" result="no"] )
    rm -f core
AC_MSG_RESULT("$result")
fi

dnl AC_CHECK_LIB(nspr$NSPR_VERSION, PR_GetUniqueIdentity, NSPR_LIBS="-lnspr$NSPR_VERSION $NSPR_LIBS",
dnl	[MISSING_NSPR="$MISSING_NSPR -lnspr$NSPR_VERSION"], $NSPR_LIBS)

AC_CHECK_LIB(plc$NSPR_VERSION, PL_CreateOptState, NSPR_LIBS="-lplc$NSPR_VERSION $NSPR_LIBS",
	[MISSING_NSPR="$MISSING_NSPR -lplc$NSPR_VERSION"], $NSPR_LIBS)
AC_CHECK_LIB(plds3, PL_GetEvent, NSPR_LIBS="-lplds$NSPR_VERSION $NSPR_LIBS",
	[MISSING_NSPR="$MISSING_NSPR -lplds$NSPR_VERSION"], $NSPR_LIBS)

CFLAGS=$_SAVE_CFLAGS
LDFLAGS=$_SAVE_LDFLAGS
LIBS=$_SAVE_LIBS
if test "${NSPR_DIR}" -a -d "${NSPR_DIR}"; then
    NSPR_INCLUDE_DIR="${NSPR_DIR}/include"
    NSPR_CFLAGS="-I${NSPR_INCLUDE_DIR}"
    if test "$NSPR_LIBDIR"x != x; then
        NSPR_LIBS="-L${NSPR_LIBDIR} ${NSPR_LIBS}"
    else
        NSPR_LIBS="-L${NSPR_DIR}/lib ${NSPR_LIBS}"
    fi
fi

dnl
dnl If NSPR was not detected in the system, use the one in the source
dnl tree (mozilla/nsprpub)
dnl
dnl NSPR_INCLUDE_DIR and NSPR_CFLAGS are blank because NSPR built as
dnl part of the mozilla build, will install its headers and libs in
dnl the same place as mozilla.
dnl
if test ! -z "$MISSING_NSPR"; then
   echo
   echo "*** NSPR was not detected in your system.  This is not a problem."
   echo "*** I will use the one in the current source tree instead. "
   echo
   sleep 3

   NSPR_INCLUDE_DIR=
   NSPR_CFLAGS=
   NSPR_LIBS="-lplds$NSPR_VERSION -lplc$NSPR_VERSION -lnspr$NSPR_VERSION $PTHREAD_LDFLAGS"
dnl
dnl Otherwise, we are using an NSPR installed in the system.
dnl
dnl We need to set MOZ_NATIVE_NSPR so that mozilla/nsprpub is not built.
dnl
else
   MOZ_NATIVE_NSPR=1
fi

dnl Checks for library functions.
dnl ========================================================
AC_FUNC_ALLOCA
AC_PROG_GCC_TRADITIONAL
AC_FUNC_MEMCMP
AC_FUNC_MMAP
dnl AC_FUNC_SETVBUF_REVERSED
AC_TYPE_SIGNAL
AC_FUNC_STRCOLL
AC_FUNC_STRFTIME
AC_FUNC_UTIME_NULL
AC_FUNC_VFORK
AC_FUNC_VPRINTF
AC_CHECK_FUNCS(ftime getcwd gethostname getwd mkdir mktime putenv rmdir select)
AC_CHECK_FUNCS(socket strcspn strdup strerror strspn strstr strtol strtoul)
AC_CHECK_FUNCS(uname qsort snprintf waitid fork1 remainder lchown statvfs)
AC_CHECK_FUNCS(localtime_r setvbuf)

AC_MSG_CHECKING(how to call gettimeofday)
AC_CACHE_VAL(ac_cv_gettimeofday_args,
 [AC_TRY_COMPILE([#include <stdlib.h>
                  #include <sys/time.h>],
                 [struct timeval tv; struct timezone tzp;
                  gettimeofday(&tv, &tzp);],
                 [ac_cv_gettimeofday_args=2],
                 [AC_TRY_COMPILE([#include <stdlib.h>
                                  #include <sys/time.h>],
                                 [struct timeval tv; gettimeofday(&tv);],
                                 [ac_cv_gettimeofday_args=1],
                                 [ac_cv_gettimeofday_args=0])])])
if test "$ac_cv_gettimeofday_args" = 1 ; then
  AC_DEFINE(HAVE_GETTIMEOFDAY)
  AC_MSG_RESULT(one argument)
elif test "$ac_cv_gettimeofday_args" = 2 ; then
  AC_DEFINE(HAVE_GETTIMEOFDAY)
  AC_DEFINE(GETTIMEOFDAY_TWO_ARGS)
  AC_MSG_RESULT(two arguments)
else
  AC_MSG_RESULT(unknown)
fi

dnl Checks for specific (libc) global variables
AC_MSG_CHECKING(for sys_errlist/sys_nerr)
AC_CACHE_VAL(ac_cv_syserrlist,
 [AC_TRY_COMPILE([#include <stdio.h>
                  #include <errno.h>],
                 [char *foo = sys_errlist[sys_nerr-1];],
                 [ac_cv_syserrlist=true],
                 [ac_cv_syserrlist=false])])
if test "$ac_cv_syserrlist" = true ; then
  AC_DEFINE(HAVE_SYSERRLIST)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi  

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

  _MOZ_RTTI_FLAGS=-fno-rtti

  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++} -c -fno-handle-exceptions conftest.C > conftest.out 2>&1

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

  rm -f conftest*])

  AC_MSG_RESULT($ac_cv_cxx_exceptions_flags)
  _MOZ_EXCEPTIONS_FLAGS=$ac_cv_cxx_exceptions_flags
fi

dnl Put your C++ language/feature checks below
dnl Is there a way to make AC_TRY_COMPILE use CXX instead of CC?
_SAVE_CC=$CC
CC=$CXX
ac_ext=C
AC_MSG_CHECKING(for ios::binary)
AC_CACHE_VAL(ac_cv_ios_binary,
 [AC_TRY_COMPILE([#include <iostream.h>]
	         [#include <fstream.h>],
                 [char *buffer = "config.log";
		  fstream *mFileStream=new fstream(buffer, ios::binary);],
                 [ac_cv_ios_binary=true],
                 [ac_cv_ios_binary=false])])
if test "$ac_cv_ios_binary" = true ; then
  AC_DEFINE(HAVE_IOS_BINARY)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi  


AC_MSG_CHECKING(for ios::bin)
AC_CACHE_VAL(ac_cv_ios_bin,
 [AC_TRY_COMPILE([#include <iostream.h>]
               [#include <fstream.h>],
                 [char *buffer = "config.log";
                fstream *mFileStream=new fstream(buffer, ios::bin);],
                 [ac_cv_ios_bin=true],
                 [ac_cv_ios_bin=false])])
if test "$ac_cv_ios_bin" = true ; then
  AC_DEFINE(HAVE_IOS_BIN)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi  

AC_CACHE_CHECK(for namespaces,
               ac_cv_cpp_namespaces,
               [AC_TRY_COMPILE(namespace X {},
                               using namespace X;,
                               ac_cv_cpp_namespaces=yes,
                               ac_cv_cpp_namespaces=no)])
if test "$ac_cv_cpp_namespaces" = yes ; then
   AC_DEFINE(HAVE_CPP_NAMESPACES)
fi

AC_MSG_CHECKING(for ostreams)
AC_CACHE_VAL(ac_cv_ostream,
  [AC_TRY_LINK([#include <iostream.h>],
               [streambuf *xxx; ostream *foo=new ostream(xxx);],
               [ac_cv_ostream=true],
               [ac_cv_ostream=false])])
if test "$ac_cv_ostream" = true ; then
  AC_DEFINE(HAVE_OSTREAM)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
  _SAVE_LIBS=$LIBS
  LIBS="$LIBS -lstdc++"
  AC_MSG_CHECKING(for ostreams in -lstdc++)
  AC_CACHE_VAL(ac_cv_lib_stdcpp_ostream,
    [AC_TRY_LINK([#include <iostream.h>],
                [ostream *foo=new ostream();],
                [ac_cv_lib_stdcpp_ostream=true],
                [ac_cv_lib_stdcpp_ostream=false])])
  if test "$ac_cv_lib_stdcpp_ostream" = true ; then
    AC_DEFINE(HAVE_OSTREAM)
    AC_MSG_RESULT(yes)
  else
    AC_MSG_RESULT(no)
    LIBS=$_SAVE_LIBS
  fi
fi

AC_CACHE_CHECK(for C++ \"bool\" keyword,
               ac_cv_cpp_bool,
               [AC_TRY_COMPILE(bool b;,
                               b = true;,
                               ac_cv_cpp_bool=yes,
                               ac_cv_cpp_bool=no)])
if test "$ac_cv_cpp_bool" = no ; then
   AC_DEFINE(NEEDS_bool)
fi


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

dnl
dnl We dont 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

AC_CACHE_CHECK(for C++ \"using\" keyword,
               ac_cv_cpp_using,
               [AC_TRY_COMPILE(class X { public: int go() {return 3;} };
                               class Y : public X {
                                 private: using X::go;
                               };,
                               X x; Y y;,
                               ac_cv_cpp_using=yes,
                               ac_cv_cpp_using=no)])
if test "$ac_cv_cpp_using" = yes ; then
   AC_DEFINE(HAVE_CPP_USING)
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 note that this one is reversed - if the test fails, then
dnl we require implementations of unused methods
AC_CACHE_CHECK(whether C++ requires implementation of unused methods,
               ac_cv_cpp_unused_required,
               [AC_TRY_COMPILE(class X {private: 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
    
CC=$_SAVE_CC
ac_ext=c

dnl End of C++ language/feature checks

dnl ========================================================
dnl =
dnl =  Internationalization checks
dnl =
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 catagory = 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 	

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

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

MOZ_ARG_DISABLE_BOOL(async-dns,
[  --disable-async-dns     Disable separate dns thread],
  NO_UNIX_ASYNC_DNS=1)

dnl build mozilla/xpfe by default
MOZ_BUILD_XPFE=1

MOZ_ARG_DISABLE_BOOL(build-xpfe,
[  --disable-build-xpfe    Dont build mozilla/xpfe],
  MOZ_BUILD_XPFE= )

dnl build editor by default
MOZ_EDITOR=1

MOZ_ARG_DISABLE_BOOL(editor,
[  --disable-editor         Dont build the editor],
  MOZ_EDITOR= )

dnl This will be part of the address book
dnl MOZ_ARG_ENABLE_BOOL(ldap,
dnl [  --enable-ldap           Enable LDAP directory access],
dnl [ MOZ_LDAP=1 NO_UNIX_LDAP= ],
dnl [ NO_UNIX_LDAP=1 ])

dnl build Mail & News by default
MOZ_MAIL_NEWS=1

MOZ_ARG_DISABLE_BOOL(mailnews,
[  --disable-mailnews      Dont build Mail & News],
  MOZ_MAIL_NEWS= )

dnl Note: This conflicts with --disable-shared
MOZ_ARG_ENABLE_BOOL(oji,
[  --enable-oji            Enable use of Open JVM Interface],
  [MOZ_OJI=1 FULL_STATIC_BUILD= NO_SHARED_LIB=])

dnl build the tests by default
ENABLE_TESTS=1

MOZ_ARG_DISABLE_BOOL(tests,
[  --disable-tests         Dont build the tests],
  ENABLE_TESTS= )

dnl Build PICS (mozilla/extensions/pics) code
MOZ_ARG_ENABLE_BOOL(pics,
[  --enable-pics           Enable PICS code],
  ENABLE_PICS=1)

AC_DEFINE(ENABLE_PICS)

dnl Build browsing profile; off by default
MOZ_ARG_ENABLE_BOOL(brprof,
[  --enable-brprof        Enable browsing profile cookie],
  MOZ_BRPROF=1
  AC_DEFINE(MOZ_BRPROF))

dnl ========================================================
dnl =
dnl = GtkMozilla support
dnl = 
dnl ========================================================
MOZ_ENABLE_GTK_MOZILLA=

MOZ_ARG_ENABLE_BOOL(gtk-mozilla,
[  --enable-gtk-mozilla           Enable building of GtkMozilla GTK+ widget],
  MOZ_ENABLE_GTK_MOZILLA=1 MOZ_BUILD_ROOT=`pwd`)
dnl ========================================================


dnl ========================================================
dnl =
dnl = Compiler Options
dnl = 
dnl ========================================================
MOZ_ARG_HEADER(Compiler Options)

UNIX_CRASH_ON_ASSERT= 
MOZ_ARG_ENABLE_BOOL(crash-on-assert,
[  --enable-crash-on-assert       Make NS_ASSERTION crash on Unix],
  UNIX_CRASH_ON_ASSERT=1)

dnl ========================================================
dnl =
dnl = --enable-optimize
dnl = 
dnl = Enable code optimization. OFF by default.
dnl = 
dnl ========================================================
MOZ_OPTIMIZE=

if test ! "$MOZ_OPTIMIZE_FLAGS"
then
	MOZ_OPTIMIZE_FLAGS="-O"
fi

MOZ_ARG_ENABLE_BOOL(optimize,
[  --enable-optimize       Enable code optimizations ],
  [ MOZ_OPTIMIZE=1 ])

if test "$MOZ_OPTIMIZE"
then
  CFLAGS="$CFLAGS $MOZ_OPTIMIZE_FLAGS"
  CXXFLAGS="$CXXFLAGS $MOZ_OPTIMIZE_FLAGS"
fi

dnl ========================================================
dnl =
dnl = --disable-debug
dnl = 
dnl = Disable building with debug info.
dnl = 
dnl = Debugging is ON by default so that we get more useful
dnl = bug reports.
dnl = 
dnl ========================================================
MOZ_DEBUG=1

if test ! "$MOZ_DEBUG_FLAGS"
then
	MOZ_DEBUG_FLAGS="-g"
fi

MOZ_ARG_DISABLE_BOOL(debug,
[  --disable-debug        Disable building with debug info],
  MOZ_DEBUG=)

if test "$MOZ_DEBUG"
then
  CFLAGS="$CFLAGS $MOZ_DEBUG_FLAGS"
  CXXFLAGS="$CXXFLAGS $MOZ_DEBUG_FLAGS"
fi

dnl ========================================================
dnl =
dnl = --with-debug-modules=module1,module1,etc
dnl = 
dnl = Enable debug for specific modules only
dnl = 
dnl ========================================================
MOZ_ARG_WITH_STRING(debug-modules,
[  --with-debug-modules          Enable debug for specific modulues only],
  [ MOZ_DEBUG_MODULES=`echo $withval | sed 's|,| |g'` ] )
dnl ========================================================

_cpp_md_flag=
MOZ_ARG_DISABLE_BOOL(md,
[  --disable-md            Do not use compiler-based dependencies ],
  [],
  [_cpp_md_flag=1],
  [dnl Default is to turn on -MD if using GNU-compatible compilers
   if test "$GNU_CC" -a "$GNU_CXX"; then
     _cpp_md_flag=1
   fi])
if test "$_cpp_md_flag"; then
  COMPILER_DEPEND=1
  MDDEPDIR='.deps'
  _DEPEND_CFLAGS='$(filter-out %/.pp,-Wp,-MD,$(MDDEPDIR)/$(*F).pp)'
fi
AC_SUBST(COMPILER_DEPEND)
AC_SUBST(MDDEPDIR)

dnl Make pedantic a flag for now since the builds currently choke on it.
MOZ_ARG_ENABLE_BOOL(pedantic,
[  --enable-pedantic       Issue all warnings demanded by strict ANSI C ],
  [ _WARNINGS_CFLAGS="${_WARNINGS_CFLAGS} -pedantic"
    _WARNINGS_CXXFLAGS="${_WARNINGS_CXXFLAGS} -pedantic" ])

dnl Note: This should not be disabled if --enable-oji is set
MOZ_ARG_DISABLE_BOOL(shared,
[  --disable-shared        Disable building of internal shared libs],
  NO_SHARED_LIB=1)

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

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

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

MOZ_ARG_ENABLE_BOOL(gprof,
[  --enable-gprof          Enable gprof symbols],
  [ _GPROF_CFLAGS="-pg" ])

MOZ_ARG_ENABLE_BOOL(insure,
[  --enable-insure         Enable insure++ instrumentation (linux only)],
  [ MOZ_INSURE="insure" MOZ_INSURIFYING=1 MOZ_INSURE_DIRS="mozilla" MOZ_INSURE_EXCLUDE_DIRS="mozilla/config" ])

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

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

MOZ_ARG_ENABLE_BOOL(profile,
[  --enable-profile        Enable profiling (solaris only)],
  MOZILLA_GPROF=1)

MOZ_ARG_DISABLE_BOOL(double-buffer,
[  --disable-double-buffer Disable double buffering],
  AC_DEFINE(NO_DOUBLE_BUFFER))

MOZ_ARG_DISABLE_BOOL(new-drag-and-drop,
[  --enable-new-drag-and-drop New Drag and Drop support],
  AC_DEFINE(NEW_DRAG_AND_DROP))

MOZ_ARG_ENABLE_BOOL(wrap-malloc,
[  --enable-wrap-malloc    Wrap malloc calls (gnu linker only) (default=no) ],
  [ 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)'
    fi])

MOZ_ARG_WITH_STRING(wrap-malloc,
[  --with-wrap-malloc-=\$dir Location of malloc wrapper library],
  WRAP_MALLOC_LIB=$withval)


dnl ========================================================
dnl =
dnl = nsString hackery - This is expected to be a short-lived
dnl = variable.  It will be yanked once nsString2 replaces
dnl = nsString completely.
dnl = 
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(string2,
[  --enable-string2           Enable the use of nsString2 ],
  USE_STRING2=1)

if test "$USE_STRING2"
then
  AC_DEFINE(USE_STRING2)
fi


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

MOZ_ARG_ENABLE_STRING(homedir,
[  --enable-homedir=\$val   Set the homedir to \$val],
dnl [ Location of the mozilla user directory (default is ~/.mozilla).],
  [if echo "$enableval" | grep "\/" >/dev/null; then
    AC_MSG_ERROR("Homedir must be single relative path.")
  else 
    AC_DEFINE(MOZ_USER_DIR,"$enableval")
  fi], 
  AC_DEFINE(MOZ_USER_DIR,".mozilla") )

MOZ_ARG_ENABLE_BOOL(idltool,
[  --enable-idlc           Build idl tool (default=no) ],
  BUILD_IDLC=1)

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

dnl commenting this out
dnl according to waterson it is obsolete.
dnl I'll remove it once I hear back from jband.  
dnl MOZ_ARG_ENABLE_BOOL(js-stubs,
dnl [  --enable-js-stubs       Use XPIDL JavaScript Stubs.],
dnl   AC_DEFINE(XPIDL_JS_STUBS))

dnl ========================================================
dnl =
dnl = Untested or Broken Options
dnl = 
dnl ========================================================
MOZ_ARG_HEADER(Untested or Broken Options)

MOZ_ARG_ENABLE_BOOL(crypto,
[  --enable-crypto         Enable use of SSL (untested)],
  MOZ_SECURITY=1)

dnl Netcaster is dead
dnl MOZ_ARG_ENABLE_BOOL(netcast,
dnl [  --enable-netcast        Enable use of netcast (untested)],
dnl  MOZ_NETCAST=1)

dnl Note: This needs to come after --disable-shared
MOZ_ARG_ENABLE_BOOL(java,
[  --enable-java           Enable use of java applets (untested)],
  [MOZ_JAVA=1 FULL_STATIC_BUILD= NO_SHARED_LIB=])

if test "$MOZ_OJI" -a "$MOZ_JAVA"
then
  echo "configure: error: Simultaneous use of --enable-java and\
        --enable-oji is no longer supported." 1>&2
  exit 1
fi

MOZ_ARG_ENABLE_BOOL(mail-compose,
[  --enable-mail-compose   Enable old Messenger mail composer],
  [ MOZ_MAIL_COMPOSE=1 MOZ_EDITOR=1 ])

dnl The new mail app is "smart-mail"
dnl MOZ_ARG_ENABLE_BOOL(smart-mail,
dnl [  --enable-smart-mail     Enable HTML/RDF-based client-side mail (untested)],
dnl  MOZ_SMART_MAIL=1)

MOZ_ARG_DISABLE_BOOL(static,
[  --disable-static        Disable building of internal static libs],
  NO_STATIC_LIB=1)

case "$target" in
    *-*-aix*)
	if test "${NO_STATIC_LIB}" = "1" -o -z "${NO_SHARED_LIB}"; then
	    if test -f /usr/lpp/xlC/bin/makeC++SharedLib_r; then
		AIX_SHLIB_BIN='/usr/lpp/xlC/bin/makeC++SharedLib_r'
	    elif test -f /usr/ibmcxx/bin/makeC++SharedLib_r; then
		AIX_SHLIB_BIN='/usr/ibmcxx/bin/makeC++SharedLib_r'
	    fi
	    AC_PATH_PROG(AIX_SHLIB_BIN, makeC++SharedLib_r, :)
	    if test ! -n "$AIX_SHLIB_BIN"; then
		echo
		echo "*** Unable to locate makeC++SharedLib_r, needed for creation of shared"
		echo "*** libraries on AIX.  You will only be able to build static libraries."
		echo
		NO_STATIC_LIB=''
		NO_SHARED_LIB=1
	    fi
	fi
	AC_SUBST(AIX_SHLIB_BIN)
	;;
esac

AC_SUBST(AR)
AC_SUBST(AS)
AC_SUBST(ASFLAGS)
AC_SUBST(AS_DASH_C_FLAG)
AC_SUBST(NS_USE_NATIVE)
AC_SUBST(MOZ_TOOLKIT)
AC_SUBST(MOZ_UPDATE_XTERM)
AC_SUBST(MOZ_SECURITY)
dnl AC_SUBST(MOZ_NETCAST)
AC_SUBST(MOZ_JAVA)
AC_SUBST(MOZ_OJI)
AC_SUBST(MOZ_DEBUG)
AC_SUBST(MOZ_DEBUG_MODULES)
AC_SUBST(MOZILLA_GPROF)
AC_SUBST(MOZ_INSURE)
AC_SUBST(MOZ_INSURE_DIRS)
AC_SUBST(MOZ_INSURE_EXCLUDE_DIRS)
AC_SUBST(MOZ_INSURIFYING)
AC_SUBST(MOZ_MAIL_NEWS)
AC_SUBST(MOZ_BUILD_XPFE)
dnl AC_SUBST(MOZ_LDAP)
AC_SUBST(MOZ_EDITOR)
AC_SUBST(MOZ_BRPROF)

AC_SUBST(UNIX_CRASH_ON_ASSERT)
AC_SUBST(NO_UNIX_ASYNC_DNS)
AC_SUBST(NO_SHARED_LIB)
AC_SUBST(NO_STATIC_LIB)
AC_SUBST(ENABLE_TESTS)
AC_SUBST(ENABLE_PICS)
AC_SUBST(MOZ_USER_DIR)
dnl AC_SUBST(MOZ_SMART_MAIL)
AC_SUBST(MOZ_DOM)
AC_SUBST(MOZ_MAIL_COMPOSE)
AC_SUBST(FULL_STATIC_BUILD)
AC_SUBST(NO_UNIX_LDAP)
AC_SUBST(BUILD_XPIDL)
AC_SUBST(BUILD_IDLC)
AC_SUBST(MOZ_ENABLE_GTK_MOZILLA)
AC_SUBST(MOZ_BUILD_ROOT)

dnl system JPEG support
dnl ========================================================
AC_ARG_WITH(jpeg,
[  --with-jpeg=\$dir        use system libjpeg in \$dir if more recent],
	JPEG_DIR=$withval)

_SAVE_CFLAGS=$CFLAGS
_SAVE_LDFLAGS=$LDFLAGS
_SAVE_LIBS=$LIBS
CFLAGS="-I${JPEG_DIR}/include $CFLAGS"
LDFLAGS="-L${JPEG_DIR}/lib $LDFLAGS"
if test "$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_RUN( 
	#include <stdio.h>
	#include <sys/types.h>
	#include <jpeglib.h>
	int main () {
	    #if JPEG_LIB_VERSION >= $MOZJPEG
		exit(0);
	    #else
		exit(1);
	    #endif
	}
	, SYSTEM_JPEG=1, [SYSTEM_JPEG= JPEG_CFLAGS= JPEG_LIBS=], SYSTEM_JPEG= ) 
    rm -f core
fi 
CFLAGS=$_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 ========================================================
AC_ARG_WITH(zlib,
[  --with-zlib=\$dir        use system libz in \$dir],
	ZLIB_DIR=$withval)

_SAVE_CFLAGS=$CFLAGS
_SAVE_LDFLAGS=$LDFLAGS
CFLAGS="-I${ZLIB_DIR}/include $CFLAGS"
LDFLAGS="-L${ZLIB_DIR}/lib $LDFLAGS"
if test "$ZLIB_DIR" = no; then
    SYSTEM_ZLIB=
else
    AC_MSG_CHECKING("for zlib.h")
    AC_TRY_COMPILE([#include "zlib.h"], [], 
	[result="yes" SYSTEM_ZLIB=1],
	[result="no" SYSTEM_ZLIB=])
    AC_MSG_RESULT("$result")
fi
if test "$SYSTEM_ZLIB" = 1; then
    AC_CHECK_LIB(z, gzread, [SYSTEM_ZLIB=1 ZLIB_LIBS="-lz $ZLIB_LIBS"], 
	[SYSTEM_ZLIB= ZLIB_CFLAGS= ZLIB_LIBS=], $ZLIB_LIBS)
fi
CFLAGS=$_SAVE_CFLAGS
LDFLAGS=$_SAVE_LDFLAGS

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 ========================================================
AC_ARG_WITH(png, 
[  --with-png=\$dir         use system libpng in \$dir if more recent],
        PNG_DIR=$withval)

_SAVE_CFLAGS=$CFLAGS
_SAVE_LDFLAGS=$LDFLAGS
_SAVE_LIBS=$LIBS
CFLAGS="-I${PNG_DIR}/include $ZLIB_CFLAGS $CFLAGS"
LDFLAGS="-L${PNG_DIR}/lib $ZLIB_LIBS -lz $LDFLAGS"
if test "$PNG_DIR" = no; then
    SYSTEM_PNG=
else
    AC_CHECK_LIB(png, png_get_valid, [SYSTEM_PNG=1 PNG_LIBS="-lpng $PNG_LIBS"],
                 SYSTEM_PNG=, $PNG_LIBS)
fi
if test "$SYSTEM_PNG" = 1; then
    LIBS="$PNG_LIBS $LIBS"
    AC_TRY_RUN(
	#include <stdio.h>
	#include <sys/types.h>
	#include <png.h>
	int main () {
	    #if PNG_LIBPNG_VER >= $MOZPNG
		exit(0);
	    #else
		exit(1);
	    #endif
	}
	, SYSTEM_PNG=1, [SYSTEM_PNG= PNG_CFLAGS= PNG_LIBS=], SYSTEM_PNG= ) 
    rm -f core
fi
CFLAGS=$_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

dnl system FullCircle/Talkback support (Crash-reporting mechanism)
dnl ==============================================================

AC_ARG_WITH(fullcircle,
[  --with-fullcircle=\$dir        location of FullCircle headers and libraries],

        FULLCIRCLE_DIR=$withval,
        FULLCIRCLE_DIR=no)

if test "$FULLCIRCLE_DIR" = no; then
    FULLCIRCLE_DIR=
else

_SAVE_CFLAGS=$CFLAGS
_SAVE_LDFLAGS=$LDFLAGS
_SAVE_LIBS=$LIBS
CFLAGS="$CFLAGS -I${FULLCIRCLE_DIR}"
LDFLAGS="$LDFLAGS -L${FULLCIRCLE_DIR}"

AC_MSG_CHECKING("for FC_Initialize in -ltalkback");
LIBS="-ltalkback $LIBS"
AC_TRY_LINK([
	#include "fullcircle.h"
        #include <stdio.h>
	],
        [FC_Initialize();
        exit(0);]
        ,[FULLCIRCLE_LIB="-ltalkback $FULLCIRCLE_LIB" result="yes"],
        [MISSING_FULLCIRCLE=1 result="no"])
AC_MSG_RESULT("$result")

CFLAGS=$_SAVE_CFLAGS
LDFLAGS=$_SAVE_LDFLAGS
LIBS=$_SAVE_LIBS

if test ! -z "$MISSING_FULLCIRCLE"; then
    AC_MSG_ERROR([Could not find FullCircle library]);
fi

fi


LDFLAGS=`echo \
	$_WARNINGS_CFLAGS \
	$LDFLAGS \
	$CFLAGS`

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

CXXFLAGS=`echo \
	$_MOZ_RTTI_FLAGS \
	$_MOZ_EXCEPTIONS_FLAGS \
	$_WARNINGS_CXXFLAGS \
	$_GPROF_CFLAGS \
	$_DEPEND_CFLAGS \
	$_DEFINES_CXXFLAGS \
	$CXXFLAGS`

dnl 
dnl It is perfectly legal to build with both -O and -g even though
dnl some compilers/platforms might not support this.
dnl 

dnl # Clean out '-O' flags if doing a debug build.
dnl if test "$MOZ_DEBUG"
dnl then
dnl   changequote(,)dnl
dnl   CFLAGS=`  echo $CFLAGS   | sed 's/ *-O[^ ]*//g;'`
dnl   CXXFLAGS=`echo $CXXFLAGS | sed 's/ *-O[^ ]*//g;'`
dnl   LDFLAGS=`echo  $LDFLAGS  | sed 's/ *-O[^ ]*//g;'`
dnl   changequote([,])dnl
dnl fi

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

AC_SUBST(CFLAGS)
AC_SUBST(CXXFLAGS)
AC_SUBST(LDFLAGS)
AC_SUBST(LIBS)

AC_SUBST(USE_STRING2)

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_LDOPTS)
AC_SUBST(DLL_SUFFIX)
AC_DEFINE_UNQUOTED(MOZ_DLL_SUFFIX, ".$DLL_SUFFIX")

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

if test ! -z "$MISSING_MOTIF"; then
   AC_MSG_ERROR([ Could not find the following Motif libraries: $MISSING_MOTIF ]);
fi
fi # $no_x

dnl Set various defines and substitutions
dnl ========================================================
# netlib stuff
AC_DEFINE(MODULAR_NETLIB)
MODULAR_NETLIB=1
AC_SUBST(MODULAR_NETLIB)
if test "$MODULAR_NETLIB" = ""; then
  AC_DEFINE(CookieManagement)
fi

# imagelib
AC_DEFINE(STANDALONE_IMAGE_LIB)
STANDALONE_IMAGE_LIB=1
AC_SUBST(STANDALONE_IMAGE_LIB)

OS_TARGET=`uname -s`
AC_SUBST(OS_TARGET)

if test "$OS_TARGET" = "OS2"; then
  AC_DEFINE(XP_PC)
elif test "$OS_TARGET" = "WINNT"; then
  AC_DEFINE(XP_PC)
else
  AC_DEFINE(XP_UNIX)
  AC_DEFINE(UNIX_EMBED)
  AC_DEFINE(X_PLUGINS)
  AC_DEFINE(UNIX_LDAP)
  AC_DEFINE(UNIX_ASYNC_DNS)
fi

AC_DEFINE(JS_THREADSAFE)
AC_DEFINE(LAYERS)
AC_DEFINE(NETSCAPE)

if test "$MOZ_EDITOR"; then
  AC_DEFINE(NGEDITOR)
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 =
dnl = rpm support
dnl = 
dnl ========================================================
MOZ_RPM_NSPR_OPTIMIZE="BUILD_OPT=1"
MOZ_RPM_PREFIX="/usr"
MOZ_RPM_RELEASE="SeaMonkey_M4_BRANCH_19990409"
MOZ_RPM_SEAMONKEY_OPTIMIZE="--disable-debug"
MOZ_RPM_TMP="/tmp"
MOZ_RPM_VERSION="5.0"

AC_SUBST(MOZ_RPM_NSPR_OPTIMIZE)
AC_SUBST(MOZ_RPM_PREFIX)
AC_SUBST(MOZ_RPM_RELEASE)
AC_SUBST(MOZ_RPM_SEAMONKEY_OPTIMIZE)
AC_SUBST(MOZ_RPM_TMP)
AC_SUBST(MOZ_RPM_VERSION)

dnl ========================================================
dnl =
dnl = Support for feeding NSPR environment variables via
dnl = a file as opposed to the environment itself.
dnl = 
dnl = The following 2 files get generated by configure and
dnl = copied into
dnl = 
dnl = build/unix/nspr_my_config.mk support
dnl = build/unix/nspr_my_override.mk support
dnl = 
dnl = nsprpub/config 
dnl = 
dnl = NSPR will then include these files in its build environment.
dnl = 
dnl = The following variables might need to be set to properly
dnl = build NSPR for unix:
dnl = 
dnl = my_config.mk:
dnl = 
dnl = USE_PTHREADS
dnl = BUILD_OPT
dnl = NS_USE_GCC
dnl = NO_MDUPDATE
dnl = NS_USE_NATIVE
dnl = MOZILLA_CLIENT
dnl = 
dnl = my_overrides.mk:
dnl = 
dnl = DIST
dnl = 
dnl ========================================================
if test ! "$MOZ_NATIVE_NSPR"
then
dnl 
dnl USE_PTHREADS
dnl
dnl This flag controls whether NSPR use pthreads, which are usually
dnl native to many unices, to implement multithreading.  On systems
dnl which dont support pthreads, NSPR uses its own user threads
dnl implementation.
dnl
dnl Different unices have different defaults for USE_PTHREADS within
dnl NSPR.  Since at this point in configure.in, we know what we
dnl want, we force USE_PTHREADS to the correct value.
dnl 

dnl 
dnl USE_PTHREADS
dnl
dnl Same as detected above.
dnl
MOZ_NSPRENV_USE_PTHREADS=$USE_PTHREADS

dnl 
dnl BUILD_OPT
dnl
dnl This flag controls whether NSPR is built with debug info
dnl 
if test "$MOZ_DEBUG"
then
  MOZ_NSPRENV_BUILD_OPT=
else
  MOZ_NSPRENV_BUILD_OPT=1
fi

dnl 
dnl NS_USE_GCC 
dnl NS_USE_NATIVE
dnl
dnl These are NSPR's way of switching between "native" and GNU compilers
dnl 
if test "$GNU_CC"
then
  MOZ_NSPRENV_NS_USE_GCC=1
  MOZ_NSPRENV_NS_USE_NATIVE=
else
  MOZ_NSPRENV_NS_USE_NATIVE=1
  MOZ_NSPRENV_NS_USE_GCC=
fi

dnl 
dnl NO_MDUPDATE
dnl
dnl These are set just to be safe.  It is possible that NSPR doesnt
dnl use these anymore.
dnl 
MOZ_NSPRENV_NO_MDUPDATE=1

dnl 
dnl MOZILLA_CLIENT
dnl
dnl On linux libc5, MOZILLA_CLIENT needs to be set so that NSPR chooses 
dnl the correct threading implementation (user threads - not pthreads)
dnl 
dnl But, on libc6 linux, you cant set MOZILLA_CLIENT for NSPR cause it
dnl screws things up.
dnl
MOZ_NSPRENV_MOZILLA_CLIENT=
case "$target" in
	*-linux*)
		if test ! -x /lib/libc.so.6
		then
			MOZ_NSPRENV_MOZILLA_CLIENT=1
		fi
	;;
esac

dnl 
dnl DIST
dnl
dnl Where the NSPR stuff gets installed: $DIST/{bin,lib,include}
dnl 
MOZ_NSPRENV_DIST=`pwd`/dist

dnl 
dnl MAKE
dnl
dnl NSPR is not safe for gnu make -jX (where X > 1) builds.  Force make
dnl in NSPR to be 'make -j1' - or just 'make'
dnl 
case "$target" in
	*-linux*)
		MOZ_NSPRENV_OVERRIDE_MAKE=`echo $MAKE | $AWK '{print \$1}'`
	;;

	*)
		MOZ_NSPRENV_OVERRIDE_MAKE=
	;;
esac

AC_SUBST(MOZ_NSPRENV_USE_PTHREADS)
AC_SUBST(MOZ_NSPRENV_BUILD_OPT)
AC_SUBST(MOZ_NSPRENV_NS_USE_GCC)
AC_SUBST(MOZ_NSPRENV_NO_MDUPDATE)
AC_SUBST(MOZ_NSPRENV_NS_USE_NATIVE)
AC_SUBST(MOZ_NSPRENV_MOZILLA_CLIENT)
AC_SUBST(MOZ_NSPRENV_DIST)
AC_SUBST(MOZ_NSPRENV_OVERRIDE_MAKE)
fi
dnl ========================================================


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

# Save the defines header file before autoconf removes it.
# (Do not add AC_DEFINE calls after this line.)
if test "$_USE_CPP_INCLUDE_FLAG"; then
  CONFIG_DEFS_H=config-defs.h
  # Only write config-defs.h when something changes (or it doesn't exist)
  if test ! -f $CONFIG_DEFS_H \
     || diff confdefs.h $CONFIG_DEFS_H | grep \# > /dev/null; then
    AC_MSG_RESULT("creating $CONFIG_DEFS_H")

    cat > $CONFIG_DEFS_H <<\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.
 */
EOF
    cat confdefs.h >> $CONFIG_DEFS_H
  fi
fi

dnl Need to manual make the directories to get around deficiency in AC_OUTPUT
for dir in lib modules modules/security build build/package; do
   if test ! -d $dir; then rm -f $dir; mkdir $dir; fi
done

# Load the list of Makefiles to generate.
#   To add new Makefiles, edit allmakefiles.sh.
#   allmakefiles.sh sets the variable, MAKEFILES.
. ${srcdir}/allmakefiles.sh

# Run a perl script to quickly create the makefiles.
# If it succeeds, it outputs a shell command to set CONFIG_FILES
#   for the files it cannot handle correctly. This way, config.status
#   will handle these files.
# If it fails, nothing is set and config.status will run as usual.
#
# This does not change the $MAKEFILES variable.
#
eval `echo $MAKEFILES | \
      $PERL $srcdir/build/autoconf/acoutput-fast.pl` 2>/dev/null

AC_OUTPUT($MAKEFILES)

dnl ========================================================
dnl = 
dnl = If we are building NSPR as part of the build, make sure 
dnl = the NSPR environment config and override files get copied
dnl = to the right place.
dnl = 
dnl ========================================================
if test ! "$MOZ_NATIVE_NSPR"
then
  rm -f ${srcdir}/nsprpub/config/my_config.mk
  rm -f ${srcdir}/nsprpub/config/my_overrides.mk
  cp build/unix/nspr_my_config.mk ${srcdir}/nsprpub/config/my_config.mk
  cp build/unix/nspr_my_overrides.mk ${srcdir}/nsprpub/config/my_overrides.mk
fi