configure

      cxx*)
	# Compaq C++
	archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
	archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'

	runpath_var=LD_RUN_PATH
	hardcode_libdir_flag_spec_CXX='-rpath $libdir'
	hardcode_libdir_separator_CXX=:

	# Commands to make compiler produce verbose output that lists
	# what "hidden" libraries, object files and flags are used when
	# linking a shared library.
	#
	# There doesn't appear to be a way to prevent this compiler from
	# explicitly linking system object files so we need to strip them
	# from the output so that they don't get included in the library
	# dependencies.
	output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld"`; templist=`echo $templist | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
	;;
    esac
    ;;
  lynxos*)
    # FIXME: insert proper C++ library support
    ld_shlibs_CXX=no
    ;;
  m88k*)
    # FIXME: insert proper C++ library support
    ld_shlibs_CXX=no
    ;;
  mvs*)
    case $cc_basename in
      cxx*)
	# FIXME: insert proper C++ library support
	ld_shlibs_CXX=no
	;;
      *)
	# FIXME: insert proper C++ library support
	ld_shlibs_CXX=no
	;;
    esac
    ;;
  netbsd*)
    if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
      archive_cmds_CXX='$LD -Bshareable  -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
      wlarc=
      hardcode_libdir_flag_spec_CXX='-R$libdir'
      hardcode_direct_CXX=yes
      hardcode_shlibpath_var_CXX=no
    fi
    # Workaround some broken pre-1.5 toolchains
    output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
    ;;
  openbsd2*)
    # C++ shared libraries are fairly broken
    ld_shlibs_CXX=no
    ;;
  openbsd*)
    hardcode_direct_CXX=yes
    hardcode_shlibpath_var_CXX=no
    archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
    hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
    if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
      archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file,$export_symbols -o $lib'
      export_dynamic_flag_spec_CXX='${wl}-E'
      whole_archive_flag_spec_CXX="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
    fi
    output_verbose_link_cmd='echo'
    ;;
  osf3*)
    case $cc_basename in
      KCC*)
	# Kuck and Associates, Inc. (KAI) C++ Compiler

	# KCC will only create a shared library if the output file
	# ends with ".so" (or ".sl" for HP-UX), so rename the library
	# to its proper name (with version) after linking.
	archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'

	hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
	hardcode_libdir_separator_CXX=:

	# Archives containing C++ object files must be created using
	# "CC -Bstatic", where "CC" is the KAI C++ compiler.
	old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs'

	;;
      RCC*)
	# Rational C++ 2.4.1
	# FIXME: insert proper C++ library support
	ld_shlibs_CXX=no
	;;
      cxx*)
	allow_undefined_flag_CXX=' ${wl}-expect_unresolved ${wl}\*'
	archive_cmds_CXX='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && echo ${wl}-set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'

	hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
	hardcode_libdir_separator_CXX=:

	# Commands to make compiler produce verbose output that lists
	# what "hidden" libraries, object files and flags are used when
	# linking a shared library.
	#
	# There doesn't appear to be a way to prevent this compiler from
	# explicitly linking system object files so we need to strip them
	# from the output so that they don't get included in the library
	# dependencies.
	output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld" | grep -v "ld:"`; templist=`echo $templist | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
	;;
      *)
	if test "$GXX" = yes && test "$with_gnu_ld" = no; then
	  allow_undefined_flag_CXX=' ${wl}-expect_unresolved ${wl}\*'
	  archive_cmds_CXX='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'

	  hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
	  hardcode_libdir_separator_CXX=:

	  # Commands to make compiler produce verbose output that lists
	  # what "hidden" libraries, object files and flags are used when
	  # linking a shared library.
	  output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "\-L"'

	else
	  # FIXME: insert proper C++ library support
	  ld_shlibs_CXX=no
	fi
	;;
    esac
    ;;
  osf4* | osf5*)
    case $cc_basename in
      KCC*)
	# Kuck and Associates, Inc. (KAI) C++ Compiler

	# KCC will only create a shared library if the output file
	# ends with ".so" (or ".sl" for HP-UX), so rename the library
	# to its proper name (with version) after linking.
	archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'

	hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
	hardcode_libdir_separator_CXX=:

	# Archives containing C++ object files must be created using
	# the KAI C++ compiler.
	old_archive_cmds_CXX='$CC -o $oldlib $oldobjs'
	;;
      RCC*)
	# Rational C++ 2.4.1
	# FIXME: insert proper C++ library support
	ld_shlibs_CXX=no
	;;
      cxx*)
	allow_undefined_flag_CXX=' -expect_unresolved \*'
	archive_cmds_CXX='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
	archive_expsym_cmds_CXX='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
	  echo "-hidden">> $lib.exp~
	  $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname -Wl,-input -Wl,$lib.exp  `test -n "$verstring" && echo -set_version	$verstring` -update_registry ${output_objdir}/so_locations -o $lib~
	  $rm $lib.exp'

	hardcode_libdir_flag_spec_CXX='-rpath $libdir'
	hardcode_libdir_separator_CXX=:

	# Commands to make compiler produce verbose output that lists
	# what "hidden" libraries, object files and flags are used when
	# linking a shared library.
	#
	# There doesn't appear to be a way to prevent this compiler from
	# explicitly linking system object files so we need to strip them
	# from the output so that they don't get included in the library
	# dependencies.
	output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld" | grep -v "ld:"`; templist=`echo $templist | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
	;;
      *)
	if test "$GXX" = yes && test "$with_gnu_ld" = no; then
	  allow_undefined_flag_CXX=' ${wl}-expect_unresolved ${wl}\*'
	 archive_cmds_CXX='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'

	  hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
	  hardcode_libdir_separator_CXX=:

	  # Commands to make compiler produce verbose output that lists
	  # what "hidden" libraries, object files and flags are used when
	  # linking a shared library.
	  output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "\-L"'

	else
	  # FIXME: insert proper C++ library support
	  ld_shlibs_CXX=no
	fi
	;;
    esac
    ;;
  psos*)
    # FIXME: insert proper C++ library support
    ld_shlibs_CXX=no
    ;;
  sunos4*)
    case $cc_basename in
      CC*)
	# Sun C++ 4.x
	# FIXME: insert proper C++ library support
	ld_shlibs_CXX=no
	;;
      lcc*)
	# Lucid
	# FIXME: insert proper C++ library support
	ld_shlibs_CXX=no
	;;
      *)
	# FIXME: insert proper C++ library support
	ld_shlibs_CXX=no
	;;
    esac
    ;;
  solaris*)
    case $cc_basename in
      CC*)
	# Sun C++ 4.2, 5.x and Centerline C++
        archive_cmds_need_lc_CXX=yes
	no_undefined_flag_CXX=' -zdefs'
	archive_cmds_CXX='$CC -G${allow_undefined_flag}  -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
	archive_expsym_cmds_CXX='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
	$CC -G${allow_undefined_flag}  ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'

	hardcode_libdir_flag_spec_CXX='-R$libdir'
	hardcode_shlibpath_var_CXX=no
	case $host_os in
	  solaris2.[0-5] | solaris2.[0-5].*) ;;
	  *)
	    # The C++ compiler is used as linker so we must use $wl
	    # flag to pass the commands to the underlying system
	    # linker. We must also pass each convience library through
	    # to the system linker between allextract/defaultextract.
	    # The C++ compiler will combine linker options so we
	    # cannot just pass the convience library names through
	    # without $wl.
	    # Supported since Solaris 2.6 (maybe 2.5.1?)
	    whole_archive_flag_spec_CXX='${wl}-z ${wl}allextract`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; $echo \"$new_convenience\"` ${wl}-z ${wl}defaultextract'
	    ;;
	esac
	link_all_deplibs_CXX=yes

	output_verbose_link_cmd='echo'

	# Archives containing C++ object files must be created using
	# "CC -xar", where "CC" is the Sun C++ compiler.  This is
	# necessary to make sure instantiated templates are included
	# in the archive.
	old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs'
	;;
      gcx*)
	# Green Hills C++ Compiler
	archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'

	# The C++ compiler must be used to create the archive.
	old_archive_cmds_CXX='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
	;;
      *)
	# GNU C++ compiler with Solaris linker
	if test "$GXX" = yes && test "$with_gnu_ld" = no; then
	  no_undefined_flag_CXX=' ${wl}-z ${wl}defs'
	  if $CC --version | grep -v '^2\.7' > /dev/null; then
	    archive_cmds_CXX='$CC -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
	    archive_expsym_cmds_CXX='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
		$CC -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'

	    # Commands to make compiler produce verbose output that lists
	    # what "hidden" libraries, object files and flags are used when
	    # linking a shared library.
	    output_verbose_link_cmd="$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep \"\-L\""
	  else
	    # g++ 2.7 appears to require `-G' NOT `-shared' on this
	    # platform.
	    archive_cmds_CXX='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
	    archive_expsym_cmds_CXX='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
		$CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'

	    # Commands to make compiler produce verbose output that lists
	    # what "hidden" libraries, object files and flags are used when
	    # linking a shared library.
	    output_verbose_link_cmd="$CC -G $CFLAGS -v conftest.$objext 2>&1 | grep \"\-L\""
	  fi

	  hardcode_libdir_flag_spec_CXX='${wl}-R $wl$libdir'
	fi
	;;
    esac
    ;;
  sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
    no_undefined_flag_CXX='${wl}-z,text'
    archive_cmds_need_lc_CXX=no
    hardcode_shlibpath_var_CXX=no
    runpath_var='LD_RUN_PATH'

    case $cc_basename in
      CC*)
	archive_cmds_CXX='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
	archive_expsym_cmds_CXX='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
	;;
      *)
	archive_cmds_CXX='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
	archive_expsym_cmds_CXX='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
	;;
    esac
    ;;
  sysv5* | sco3.2v5* | sco5v6*)
    # Note: We can NOT use -z defs as we might desire, because we do not
    # link with -lc, and that would cause any symbols used from libc to
    # always be unresolved, which means just about no library would
    # ever link correctly.  If we're not using GNU ld we use -z text
    # though, which does catch some bad symbols but isn't as heavy-handed
    # as -z defs.
    # For security reasons, it is highly recommended that you always
    # use absolute paths for naming shared libraries, and exclude the
    # DT_RUNPATH tag from executables and libraries.  But doing so
    # requires that you compile everything twice, which is a pain.
    # So that behaviour is only enabled if SCOABSPATH is set to a
    # non-empty value in the environment.  Most likely only useful for
    # creating official distributions of packages.
    # This is a hack until libtool officially supports absolute path
    # names for shared libraries.
    no_undefined_flag_CXX='${wl}-z,text'
    allow_undefined_flag_CXX='${wl}-z,nodefs'
    archive_cmds_need_lc_CXX=no
    hardcode_shlibpath_var_CXX=no
    hardcode_libdir_flag_spec_CXX='`test -z "$SCOABSPATH" && echo ${wl}-R,$libdir`'
    hardcode_libdir_separator_CXX=':'
    link_all_deplibs_CXX=yes
    export_dynamic_flag_spec_CXX='${wl}-Bexport'
    runpath_var='LD_RUN_PATH'

    case $cc_basename in
      CC*)
	archive_cmds_CXX='$CC -G ${wl}-h,\${SCOABSPATH:+${install_libdir}/}$soname -o $lib $libobjs $deplibs $compiler_flags'
	archive_expsym_cmds_CXX='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,\${SCOABSPATH:+${install_libdir}/}$soname -o $lib $libobjs $deplibs $compiler_flags'
	;;
      *)
	archive_cmds_CXX='$CC -shared ${wl}-h,\${SCOABSPATH:+${install_libdir}/}$soname -o $lib $libobjs $deplibs $compiler_flags'
	archive_expsym_cmds_CXX='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,\${SCOABSPATH:+${install_libdir}/}$soname -o $lib $libobjs $deplibs $compiler_flags'
	;;
    esac
    ;;
  tandem*)
    case $cc_basename in
      NCC*)
	# NonStop-UX NCC 3.20
	# FIXME: insert proper C++ library support
	ld_shlibs_CXX=no
	;;
      *)
	# FIXME: insert proper C++ library support
	ld_shlibs_CXX=no
	;;
    esac
    ;;
  vxworks*)
    # FIXME: insert proper C++ library support
    ld_shlibs_CXX=no
    ;;
  *)
    # FIXME: insert proper C++ library support
    ld_shlibs_CXX=no
    ;;
esac
{ echo "$as_me:$LINENO: result: $ld_shlibs_CXX" >&5
echo "${ECHO_T}$ld_shlibs_CXX" >&6; }
test "$ld_shlibs_CXX" = no && can_build_shared=no

GCC_CXX="$GXX"
LD_CXX="$LD"


cat > conftest.$ac_ext <<EOF
class Foo
{
public:
  Foo (void) { a = 0; }
private:
  int a;
};
EOF

if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; then
  # Parse the compiler output and extract the necessary
  # objects, libraries and library flags.

  # Sentinel used to keep track of whether or not we are before
  # the conftest object file.
  pre_test_object_deps_done=no

  # The `*' in the case matches for architectures that use `case' in
  # $output_verbose_cmd can trigger glob expansion during the loop
  # eval without this substitution.
  output_verbose_link_cmd=`$echo "X$output_verbose_link_cmd" | $Xsed -e "$no_glob_subst"`

  for p in `eval $output_verbose_link_cmd`; do
    case $p in

    -L* | -R* | -l*)
       # Some compilers place space between "-{L,R}" and the path.
       # Remove the space.
       if test $p = "-L" \
	  || test $p = "-R"; then
	 prev=$p
	 continue
       else
	 prev=
       fi

       if test "$pre_test_object_deps_done" = no; then
	 case $p in
	 -L* | -R*)
	   # Internal compiler library paths should come after those
	   # provided the user.  The postdeps already come after the
	   # user supplied libs so there is no need to process them.
	   if test -z "$compiler_lib_search_path_CXX"; then
	     compiler_lib_search_path_CXX="${prev}${p}"
	   else
	     compiler_lib_search_path_CXX="${compiler_lib_search_path_CXX} ${prev}${p}"
	   fi
	   ;;
	 # The "-l" case would never come before the object being
	 # linked, so don't bother handling this case.
	 esac
       else
	 if test -z "$postdeps_CXX"; then
	   postdeps_CXX="${prev}${p}"
	 else
	   postdeps_CXX="${postdeps_CXX} ${prev}${p}"
	 fi
       fi
       ;;

    *.$objext)
       # This assumes that the test object file only shows up
       # once in the compiler output.
       if test "$p" = "conftest.$objext"; then
	 pre_test_object_deps_done=yes
	 continue
       fi

       if test "$pre_test_object_deps_done" = no; then
	 if test -z "$predep_objects_CXX"; then
	   predep_objects_CXX="$p"
	 else
	   predep_objects_CXX="$predep_objects_CXX $p"
	 fi
       else
	 if test -z "$postdep_objects_CXX"; then
	   postdep_objects_CXX="$p"
	 else
	   postdep_objects_CXX="$postdep_objects_CXX $p"
	 fi
       fi
       ;;

    *) ;; # Ignore the rest.

    esac
  done

  # Clean up.
  rm -f a.out a.exe
else
  echo "libtool.m4: error: problem compiling CXX test program"
fi

$rm -f confest.$objext

# PORTME: override above test on systems where it is broken
case $host_os in
interix3*)
  # Interix 3.5 installs completely hosed .la files for C++, so rather than
  # hack all around it, let's just trust "g++" to DTRT.
  predep_objects_CXX=
  postdep_objects_CXX=
  postdeps_CXX=
  ;;

solaris*)
  case $cc_basename in
  CC*)
    # Adding this requires a known-good setup of shared libraries for
    # Sun compiler versions before 5.6, else PIC objects from an old
    # archive will be linked into the output, leading to subtle bugs.
    postdeps_CXX='-lCstd -lCrun'
    ;;
  esac
  ;;
esac


case " $postdeps_CXX " in
*" -lc "*) archive_cmds_need_lc_CXX=no ;;
esac

lt_prog_compiler_wl_CXX=
lt_prog_compiler_pic_CXX=
lt_prog_compiler_static_CXX=

{ echo "$as_me:$LINENO: checking for $compiler option to produce PIC" >&5
echo $ECHO_N "checking for $compiler option to produce PIC... $ECHO_C" >&6; }

  # C++ specific cases for pic, static, wl, etc.
  if test "$GXX" = yes; then
    lt_prog_compiler_wl_CXX='-Wl,'
    lt_prog_compiler_static_CXX='-static'

    case $host_os in
    aix*)
      # All AIX code is PIC.
      if test "$host_cpu" = ia64; then
	# AIX 5 now supports IA64 processor
	lt_prog_compiler_static_CXX='-Bstatic'
      fi
      ;;
    amigaos*)
      # FIXME: we need at least 68020 code to build shared libraries, but
      # adding the `-m68020' flag to GCC prevents building anything better,
      # like `-m68040'.
      lt_prog_compiler_pic_CXX='-m68020 -resident32 -malways-restore-a4'
      ;;
    beos* | cygwin* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
      # PIC is the default for these OSes.
      ;;
    mingw* | os2* | pw32*)
      # This hack is so that the source file can tell whether it is being
      # built for inclusion in a dll (and should export symbols for example).
      lt_prog_compiler_pic_CXX='-DDLL_EXPORT'
      ;;
    darwin* | rhapsody*)
      # PIC is the default on this platform
      # Common symbols not allowed in MH_DYLIB files
      lt_prog_compiler_pic_CXX='-fno-common'
      ;;
    *djgpp*)
      # DJGPP does not support shared libraries at all
      lt_prog_compiler_pic_CXX=
      ;;
    interix3*)
      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
      # Instead, we relocate shared libraries at runtime.
      ;;
    sysv4*MP*)
      if test -d /usr/nec; then
	lt_prog_compiler_pic_CXX=-Kconform_pic
      fi
      ;;
    hpux*)
      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
      # not for PA HP-UX.
      case $host_cpu in
      hppa*64*|ia64*)
	;;
      *)
	lt_prog_compiler_pic_CXX='-fPIC'
	;;
      esac
      ;;
    *)
      lt_prog_compiler_pic_CXX='-fPIC'
      ;;
    esac
  else
    case $host_os in
      aix4* | aix5*)
	# All AIX code is PIC.
	if test "$host_cpu" = ia64; then
	  # AIX 5 now supports IA64 processor
	  lt_prog_compiler_static_CXX='-Bstatic'
	else
	  lt_prog_compiler_static_CXX='-bnso -bI:/lib/syscalls.exp'
	fi
	;;
      chorus*)
	case $cc_basename in
	cxch68*)
	  # Green Hills C++ Compiler
	  # _LT_AC_TAGVAR(lt_prog_compiler_static, CXX)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
	  ;;
	esac
	;;
       darwin*)
         # PIC is the default on this platform
         # Common symbols not allowed in MH_DYLIB files
         case $cc_basename in
           xlc*)
           lt_prog_compiler_pic_CXX='-qnocommon'
           lt_prog_compiler_wl_CXX='-Wl,'
           ;;
         esac
       ;;
      dgux*)
	case $cc_basename in
	  ec++*)
	    lt_prog_compiler_pic_CXX='-KPIC'
	    ;;
	  ghcx*)
	    # Green Hills C++ Compiler
	    lt_prog_compiler_pic_CXX='-pic'
	    ;;
	  *)
	    ;;
	esac
	;;
      freebsd* | kfreebsd*-gnu | dragonfly*)
	# FreeBSD uses GNU C++
	;;
      hpux9* | hpux10* | hpux11*)
	case $cc_basename in
	  CC*)
	    lt_prog_compiler_wl_CXX='-Wl,'
	    lt_prog_compiler_static_CXX='${wl}-a ${wl}archive'
	    if test "$host_cpu" != ia64; then
	      lt_prog_compiler_pic_CXX='+Z'
	    fi
	    ;;
	  aCC*)
	    lt_prog_compiler_wl_CXX='-Wl,'
	    lt_prog_compiler_static_CXX='${wl}-a ${wl}archive'
	    case $host_cpu in
	    hppa*64*|ia64*)
	      # +Z the default
	      ;;
	    *)
	      lt_prog_compiler_pic_CXX='+Z'
	      ;;
	    esac
	    ;;
	  *)
	    ;;
	esac
	;;
      interix*)
	# This is c89, which is MS Visual C++ (no shared libs)
	# Anyone wants to do a port?
	;;
      irix5* | irix6* | nonstopux*)
	case $cc_basename in
	  CC*)
	    lt_prog_compiler_wl_CXX='-Wl,'
	    lt_prog_compiler_static_CXX='-non_shared'
	    # CC pic flag -KPIC is the default.
	    ;;
	  *)
	    ;;
	esac
	;;
      linux*)
	case $cc_basename in
	  KCC*)
	    # KAI C++ Compiler
	    lt_prog_compiler_wl_CXX='--backend -Wl,'
	    lt_prog_compiler_pic_CXX='-fPIC'
	    ;;
	  icpc* | ecpc*)
	    # Intel C++
	    lt_prog_compiler_wl_CXX='-Wl,'
	    lt_prog_compiler_pic_CXX='-KPIC'
	    lt_prog_compiler_static_CXX='-static'
	    ;;
	  pgCC*)
	    # Portland Group C++ compiler.
	    lt_prog_compiler_wl_CXX='-Wl,'
	    lt_prog_compiler_pic_CXX='-fpic'
	    lt_prog_compiler_static_CXX='-Bstatic'
	    ;;
	  cxx*)
	    # Compaq C++
	    # Make sure the PIC flag is empty.  It appears that all Alpha
	    # Linux and Compaq Tru64 Unix objects are PIC.
	    lt_prog_compiler_pic_CXX=
	    lt_prog_compiler_static_CXX='-non_shared'
	    ;;
	  *)
	    ;;
	esac
	;;
      lynxos*)
	;;
      m88k*)
	;;
      mvs*)
	case $cc_basename in
	  cxx*)
	    lt_prog_compiler_pic_CXX='-W c,exportall'
	    ;;
	  *)
	    ;;
	esac
	;;
      netbsd*)
	;;
      osf3* | osf4* | osf5*)
	case $cc_basename in
	  KCC*)
	    lt_prog_compiler_wl_CXX='--backend -Wl,'
	    ;;
	  RCC*)
	    # Rational C++ 2.4.1
	    lt_prog_compiler_pic_CXX='-pic'
	    ;;
	  cxx*)
	    # Digital/Compaq C++
	    lt_prog_compiler_wl_CXX='-Wl,'
	    # Make sure the PIC flag is empty.  It appears that all Alpha
	    # Linux and Compaq Tru64 Unix objects are PIC.
	    lt_prog_compiler_pic_CXX=
	    lt_prog_compiler_static_CXX='-non_shared'
	    ;;
	  *)
	    ;;
	esac
	;;
      psos*)
	;;
      solaris*)
	case $cc_basename in
	  CC*)
	    # Sun C++ 4.2, 5.x and Centerline C++
	    lt_prog_compiler_pic_CXX='-KPIC'
	    lt_prog_compiler_static_CXX='-Bstatic'
	    lt_prog_compiler_wl_CXX='-Qoption ld '
	    ;;
	  gcx*)
	    # Green Hills C++ Compiler
	    lt_prog_compiler_pic_CXX='-PIC'
	    ;;
	  *)
	    ;;
	esac
	;;
      sunos4*)
	case $cc_basename in
	  CC*)
	    # Sun C++ 4.x
	    lt_prog_compiler_pic_CXX='-pic'
	    lt_prog_compiler_static_CXX='-Bstatic'
	    ;;
	  lcc*)
	    # Lucid
	    lt_prog_compiler_pic_CXX='-pic'
	    ;;
	  *)
	    ;;
	esac
	;;
      tandem*)
	case $cc_basename in
	  NCC*)
	    # NonStop-UX NCC 3.20
	    lt_prog_compiler_pic_CXX='-KPIC'
	    ;;
	  *)
	    ;;
	esac
	;;
      sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
	case $cc_basename in
	  CC*)
	    lt_prog_compiler_wl_CXX='-Wl,'
	    lt_prog_compiler_pic_CXX='-KPIC'
	    lt_prog_compiler_static_CXX='-Bstatic'
	    ;;
	esac
	;;
      vxworks*)
	;;
      *)
	lt_prog_compiler_can_build_shared_CXX=no
	;;
    esac
  fi

{ echo "$as_me:$LINENO: result: $lt_prog_compiler_pic_CXX" >&5
echo "${ECHO_T}$lt_prog_compiler_pic_CXX" >&6; }

#
# Check to make sure the PIC flag actually works.
#
if test -n "$lt_prog_compiler_pic_CXX"; then

{ echo "$as_me:$LINENO: checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works" >&5
echo $ECHO_N "checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works... $ECHO_C" >&6; }
if test "${lt_prog_compiler_pic_works_CXX+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  lt_prog_compiler_pic_works_CXX=no
  ac_outfile=conftest.$ac_objext
   printf "$lt_simple_compile_test_code" > conftest.$ac_ext
   lt_compiler_flag="$lt_prog_compiler_pic_CXX -DPIC"
   # Insert the option either (1) after the last *FLAGS variable, or
   # (2) before a word containing "conftest.", or (3) at the end.
   # Note that $ac_compile itself does not contain backslashes and begins
   # with a dollar sign (not a hyphen), so the echo should work correctly.
   # The option is referenced via a variable to avoid confusing sed.
   lt_compile=`echo "$ac_compile" | $SED \
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
   (eval echo "\"\$as_me:19804: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
   echo "$as_me:19808: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings other than the usual output.
     $echo "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' >conftest.exp
     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
       lt_prog_compiler_pic_works_CXX=yes
     fi
   fi
   $rm conftest*

fi
{ echo "$as_me:$LINENO: result: $lt_prog_compiler_pic_works_CXX" >&5
echo "${ECHO_T}$lt_prog_compiler_pic_works_CXX" >&6; }

if test x"$lt_prog_compiler_pic_works_CXX" = xyes; then
    case $lt_prog_compiler_pic_CXX in
     "" | " "*) ;;
     *) lt_prog_compiler_pic_CXX=" $lt_prog_compiler_pic_CXX" ;;
     esac
else
    lt_prog_compiler_pic_CXX=
     lt_prog_compiler_can_build_shared_CXX=no
fi

fi
case $host_os in
  # For platforms which do not support PIC, -DPIC is meaningless:
  *djgpp*)
    lt_prog_compiler_pic_CXX=
    ;;
  *)
    lt_prog_compiler_pic_CXX="$lt_prog_compiler_pic_CXX -DPIC"
    ;;
esac

#
# Check to make sure the static flag actually works.
#
wl=$lt_prog_compiler_wl_CXX eval lt_tmp_static_flag=\"$lt_prog_compiler_static_CXX\"
{ echo "$as_me:$LINENO: checking if $compiler static flag $lt_tmp_static_flag works" >&5
echo $ECHO_N "checking if $compiler static flag $lt_tmp_static_flag works... $ECHO_C" >&6; }
if test "${lt_prog_compiler_static_works_CXX+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  lt_prog_compiler_static_works_CXX=no
   save_LDFLAGS="$LDFLAGS"
   LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
   printf "$lt_simple_link_test_code" > conftest.$ac_ext
   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
     # The linker can only warn and ignore the option if not recognized
     # So say no if there are warnings
     if test -s conftest.err; then
       # Append any errors to the config.log.
       cat conftest.err 1>&5
       $echo "X$_lt_linker_boilerplate" | $Xsed -e '/^$/d' > conftest.exp
       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
       if diff conftest.exp conftest.er2 >/dev/null; then
         lt_prog_compiler_static_works_CXX=yes
       fi
     else
       lt_prog_compiler_static_works_CXX=yes
     fi
   fi
   $rm conftest*
   LDFLAGS="$save_LDFLAGS"

fi
{ echo "$as_me:$LINENO: result: $lt_prog_compiler_static_works_CXX" >&5
echo "${ECHO_T}$lt_prog_compiler_static_works_CXX" >&6; }

if test x"$lt_prog_compiler_static_works_CXX" = xyes; then
    :
else
    lt_prog_compiler_static_CXX=
fi


{ echo "$as_me:$LINENO: checking if $compiler supports -c -o file.$ac_objext" >&5
echo $ECHO_N "checking if $compiler supports -c -o file.$ac_objext... $ECHO_C" >&6; }
if test "${lt_cv_prog_compiler_c_o_CXX+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  lt_cv_prog_compiler_c_o_CXX=no
   $rm -r conftest 2>/dev/null
   mkdir conftest
   cd conftest
   mkdir out
   printf "$lt_simple_compile_test_code" > conftest.$ac_ext

   lt_compiler_flag="-o out/conftest2.$ac_objext"
   # Insert the option either (1) after the last *FLAGS variable, or
   # (2) before a word containing "conftest.", or (3) at the end.
   # Note that $ac_compile itself does not contain backslashes and begins
   # with a dollar sign (not a hyphen), so the echo should work correctly.
   lt_compile=`echo "$ac_compile" | $SED \
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
   (eval echo "\"\$as_me:19908: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
   echo "$as_me:19912: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings
     $echo "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' > out/conftest.exp
     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
       lt_cv_prog_compiler_c_o_CXX=yes
     fi
   fi
   chmod u+w . 2>&5
   $rm conftest*
   # SGI C++ compiler will create directory out/ii_files/ for
   # template instantiation
   test -d out/ii_files && $rm out/ii_files/* && rmdir out/ii_files
   $rm out/* && rmdir out
   cd ..
   rmdir conftest
   $rm conftest*

fi
{ echo "$as_me:$LINENO: result: $lt_cv_prog_compiler_c_o_CXX" >&5
echo "${ECHO_T}$lt_cv_prog_compiler_c_o_CXX" >&6; }


hard_links="nottested"
if test "$lt_cv_prog_compiler_c_o_CXX" = no && test "$need_locks" != no; then
  # do not overwrite the value of need_locks provided by the user
  { echo "$as_me:$LINENO: checking if we can lock with hard links" >&5
echo $ECHO_N "checking if we can lock with hard links... $ECHO_C" >&6; }
  hard_links=yes
  $rm conftest*
  ln conftest.a conftest.b 2>/dev/null && hard_links=no
  touch conftest.a
  ln conftest.a conftest.b 2>&5 || hard_links=no
  ln conftest.a conftest.b 2>/dev/null && hard_links=no
  { echo "$as_me:$LINENO: result: $hard_links" >&5
echo "${ECHO_T}$hard_links" >&6; }
  if test "$hard_links" = no; then
    { echo "$as_me:$LINENO: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5
echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;}
    need_locks=warn
  fi
else
  need_locks=no
fi

{ echo "$as_me:$LINENO: checking whether the $compiler linker ($LD) supports shared libraries" >&5
echo $ECHO_N "checking whether the $compiler linker ($LD) supports shared libraries... $ECHO_C" >&6; }

  export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
  case $host_os in
  aix4* | aix5*)
    # If we're using GNU nm, then we don't want the "-C" option.
    # -C means demangle to AIX nm, but means don't demangle with GNU nm
    if $NM -V 2>&1 | grep 'GNU' > /dev/null; then
      export_symbols_cmds_CXX='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$2 == "T") || (\$2 == "D") || (\$2 == "B")) && (substr(\$3,1,1) != ".")) { print \$3 } }'\'' | sort -u > $export_symbols'
    else
      export_symbols_cmds_CXX='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$2 == "T") || (\$2 == "D") || (\$2 == "B")) && (substr(\$3,1,1) != ".")) { print \$3 } }'\'' | sort -u > $export_symbols'
    fi
    ;;
  pw32*)
    export_symbols_cmds_CXX="$ltdll_cmds"
  ;;
  cygwin* | mingw*)
    export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS] /s/.* \([^ ]*\)/\1 DATA/;/^.* __nm__/s/^.* __nm__\([^ ]*\) [^ ]*/\1 DATA/;/^I /d;/^[AITW] /s/.* //'\'' | sort | uniq > $export_symbols'
  ;;
  *)
    export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
  ;;
  esac

{ echo "$as_me:$LINENO: result: $ld_shlibs_CXX" >&5
echo "${ECHO_T}$ld_shlibs_CXX" >&6; }
test "$ld_shlibs_CXX" = no && can_build_shared=no

#
# Do we need to explicitly link libc?
#
case "x$archive_cmds_need_lc_CXX" in
x|xyes)
  # Assume -lc should be added
  archive_cmds_need_lc_CXX=yes

  if test "$enable_shared" = yes && test "$GCC" = yes; then
    case $archive_cmds_CXX in
    *'~'*)
      # FIXME: we may have to deal with multi-command sequences.