2000-07-28 Alexandre Oliva <aoliva@redhat.com>

        * libtool.m4, ltcf-c.sh, ltcf-cxx.sh, ltcf-gcj.sh: New files from
	the libtool CVS tree multi-language branch.
	* ltconfig, ltmain.sh: Updated.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@35323 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 920 insertions, 0 deletions

diff --git a/ltcf-cxx.sh b/ltcf-cxx.sh
new file mode 100644
index 00000000000..cfbe5caaa24
--- /dev/null
+++ b/ltcf-cxx.sh
@@ -0,0 +1,920 @@
+#### This script is meant to be sourced by ltconfig.
+
+# $Id: ltcf-cxx.sh,v 1.1.2.18 2000/07/24 06:10:27 oliva Exp $
+
+# ltcf-cxx.sh - Create a C++ compiler specific configuration
+#
+# Copyright (C) 1996-1999,2000 Free Software Foundation, Inc.
+# Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
+#
+# Original C++ support by:
+#    Alexandre Oliva <oliva@lsd.ic.unicamp.br>
+#    Ossama Othman <ossama@debian.org>
+#    Thomas Thanner <tanner@gmx.de>
+#
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+
+# Source file extension for C++ test sources.
+ac_ext=cc
+
+# Object file extension for compiled C++ test sources.
+objext=o
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(int, char *[]) { return (0); }'
+
+# C++ compiler
+CXX=${CXX-c++}
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+CC=${CC-"$CXX"}
+CFLAGS=${CFLAGS-"$CXXFLAGS"}
+
+# Allow CC to be a program name with arguments.
+set dummy $CC
+compiler=$2
+cc_basename=`$echo X"$compiler" | $Xsed -e 's%^.*/%%'`
+
+# Check if we are using GNU gcc  (taken/adapted from configure script)
+# We need to check here since "--with-gcc" is set at configure time,
+# not ltconfig time!
+cat > conftest.$ac_ext <<EOF
+#ifdef __GNUC__
+  yes;
+#endif
+EOF
+if { ac_try='${CC-c++} -E conftest.$ac_ext'; { (eval echo \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+  with_gcc=yes
+
+  # Set up default GNU C++ configuration
+
+  # Check if GNU C++ uses GNU ld as the underlying linker, since the
+  # archiving commands below assume that GNU ld is being used.
+  if eval "`$CC -print-prog-name=ld` --version 2>&1" | \
+      egrep 'GNU ld' > /dev/null; then
+    with_gnu_ld=yes
+
+    archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+    archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+
+    hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
+    export_dynamic_flag_spec='${wl}--export-dynamic'
+
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
+    #     investigate it a little bit more. (MM)
+    wlarc='${wl}'
+
+    # ancient GNU ld didn't support --whole-archive et. al.
+    if eval "`$CC -print-prog-name=ld` --help 2>&1" | \
+        egrep 'no-whole-archive' > /dev/null; then
+      whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+    else
+      whole_archive_flag_spec=
+    fi
+  else
+    with_gnu_ld=no
+    wlarc=
+
+    # A generic and very simple default shared library creation
+    # command for GNU C++ for the case where it uses the native
+    # linker, instead of GNU ld.  If possible, this setting should
+    # overridden to take advantage of the native linker features on
+    # the platform it is being used on.
+    archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+  fi
+
+  # Commands to make compiler produce verbose output that lists
+  # what "hidden" libraries, object files and flags are used when
+  # linking a shared library.
+  output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
+
+else
+  with_gcc=no
+  with_gnu_ld=no
+  wlarc=
+fi
+
+# In general, the C++ compiler should always link C++ objects.
+case $target in
+*aix3* | *aix4*)
+  # AIX just has to be different, doesn't it? :-\
+  LD=makeC++SharedLib_r
+  LDFLAGS="$LDFLAGS -p 0"
+  ;;
+*)
+  LD="$CC"
+  LDFLAGS="$LDFLAGS"
+  ;;
+esac
+
+
+# PORTME: fill in a description of your system's C++ link characteristics
+case "$host_os" in
+  aix3*)
+    # FIXME: insert proper C++ library support
+    ld_shlibs=no
+    ;;
+  aix4*)
+    # FIXME: insert proper C++ library support
+    ld_shlibs=no
+    ;;
+  chorus*)
+    case "$cc_basename" in
+      *)
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+    esac 
+    ;;
+  dgux*)
+    case "$cc_basename" in
+      ec++)
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+      ghcx)
+        # Green Hills C++ Compiler
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+      *)
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+    esac
+    ;;
+  freebsd*)
+    # FreeBSD uses GNU C++ and GNU ld
+    # FIXME: insert proper C++ library support
+    ld_shlibs=no
+    ;;
+  hpux*)
+    case "$cc_basename" in
+      CC)
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+      aCC)
+	case "$host_os" in
+	hpux9*) archive_cmds='$rm $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' ;;
+	*) archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags' ;;
+	esac
+	hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+	hardcode_libdir_separator=:
+	hardcode_direct=yes
+	hardcode_minus_L=yes # Not in the search PATH, but as the default
+			     # location of the library.
+	export_dynamic_flag_spec='${wl}-E'
+
+        # Commands to make compiler produce verbose output that lists
+        # what "hidden" libraries, object files and flags are used when
+        # linking a shared library.
+        #
+        # There doesn't appear to be a way to prevent this compiler from
+        # explicitly linking system object files so we need to strip them
+        # from the output so that they don't get included in the library
+        # dependencies.
+        output_verbose_link_cmds='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | egrep "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+        ;;
+      *)
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+    esac
+    ;;
+  irix5* | irix6*)
+    case "$cc_basename" in
+      CC)
+        # SGI C++
+        archive_cmds='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
+        ;;
+      *)
+        if test "$with_gcc" = yes; then
+          if test "$with_gnu_ld" = no; then
+            archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
+          else
+            archive_cmds='$LD -shared $predep_objects $libobjs $deplibs $postdep_objects $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -o $lib'
+          fi
+        fi
+        hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+        hardcode_libdir_separator=:
+        link_all_deplibs=yes
+        ;;
+    esac
+    ;;
+  linux*)
+    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='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $linker_flags --soname $soname -o \$templib; mv \$templib $lib'
+        archive_expsym_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $linker_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
+
+        # Commands to make compiler produce verbose output that lists
+        # what "hidden" libraries, object files and flags are used when
+        # linking a shared library.
+        #
+        # There doesn't appear to be a way to prevent this compiler from
+        # explicitly linking system object files so we need to strip them
+        # from the output so that they don't get included in the library
+        # dependencies.
+        output_verbose_link_cmds='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest.so 2>&1 | egrep "ld"`; rm -f libconftest.so; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+
+        hardcode_libdir_flag_spec='${wl}--rpath,$libdir'
+        export_dynamic_flag_spec='${wl}--export-dynamic'
+
+	# Archives containing C++ object files must be created using
+	# "CC -Bstatic", where "CC" is the KAI C++ compiler.
+        old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
+        ;;
+      cxx)
+        # Compaq C++
+        archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-soname $wl$soname -o $lib'
+        archive_expsym_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
+
+        runpath_var=LD_RUN_PATH
+        hardcode_libdir_flag_spec='-rpath $libdir'
+        hardcode_libdir_separator=:
+
+        # Commands to make compiler produce verbose output that lists
+        # what "hidden" libraries, object files and flags are used when
+        # linking a shared library.
+        #
+        # There doesn't appear to be a way to prevent this compiler from
+        # explicitly linking system object files so we need to strip them
+        # from the output so that they don't get included in the library
+        # dependencies.
+        output_verbose_link_cmds='templist=`$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 $list'
+        ;;
+    esac
+    ;;
+  lynxos*)
+    # FIXME: insert proper C++ library support
+    ld_shlibs=no
+    ;;
+  m88k*)
+    # FIXME: insert proper C++ library support
+    ld_shlibs=no
+    ;;
+  mvs*)
+    case "$cc_basename" in
+      cxx)
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+      *)
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+    esac   
+    ;;
+  netbsd*)
+    # FIXME: insert proper C++ library support
+    ld_shlibs=no
+    ;;
+  osf3*)
+    if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
+      allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
+      archive_cmds='$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 ${wl}${objdir}/so_locations -o $lib'
+
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+
+      # 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_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
+    fi
+
+    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='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $linker_flags --soname $soname -o \$templib; mv \$templib $lib'
+
+        hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+        hardcode_libdir_separator=:
+
+	# Archives containing C++ object files must be created using
+	# "CC -Bstatic", where "CC" is the KAI C++ compiler.
+        old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
+
+        ;;
+      RCC)
+        # Rational C++ 2.4.1
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+      cxx)
+        allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
+        archive_cmds='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-soname $soname `test -n "$verstring" && echo ${wl}-set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
+
+        hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+        hardcode_libdir_separator=:
+
+        # 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_cmds='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 $list'
+        ;;
+      *)
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+    esac
+    ;;
+  osf4* | osf5*)
+    if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
+      allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
+      archive_cmds='$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 ${wl}${objdir}/so_locations -o $lib'
+
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+
+      # 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_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
+    fi
+
+    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='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $linker_flags --soname $soname -o \$templib; mv \$templib $lib'
+
+        hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+        hardcode_libdir_separator=:
+
+	# Archives containing C++ object files must be created using
+	# the KAI C++ compiler.
+        old_archive_cmds='$CC -o $oldlib $oldobjs'
+        ;;
+      RCC)
+        # Rational C++ 2.4.1
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+      cxx)
+        allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
+        archive_cmds='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-msym ${wl}-soname $soname `test -n "$verstring" && echo ${wl}-set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
+        
+        hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+        hardcode_libdir_separator=:
+
+        # 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_cmds='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 $list'
+        ;;
+      *)
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+    esac
+    ;;
+  psos*)
+    # FIXME: insert proper C++ library support
+    ld_shlibs=no
+    ;;
+  sco*)
+    case "$cc_basename" in
+      CC)
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+      *)
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+    esac
+    ;;
+  sunos4*)
+    case "$cc_basename" in
+      CC)
+        # Sun C++ 4.x
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+      lcc)
+        # Lucid
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+      *)
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+    esac
+    ;;
+  solaris*)
+    case "$cc_basename" in
+      CC)
+	# Sun C++ 4.2, 5.x and Centerline C++
+        no_undefined_flag=' -ztext'
+        archive_cmds='$CC -G${allow_undefined_flag} -nolib -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
+        archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+        $CC -G${allow_undefined_flag} -nolib ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
+
+        hardcode_libdir_flag_spec='-R$libdir'
+        hardcode_shlibpath_var=no
+        case "$host_os" in
+          solaris2.[0-5] | solaris2.[0-5].*) ;;
+          *)
+            # The C++ compiler is used as linker so we must use $wl
+            # flag to pass the commands to the underlying system
+            # linker.
+            # Supported since Solaris 2.6 (maybe 2.5.1?)
+            whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
+            ;;
+        esac
+        link_all_deplibs=yes
+
+        # Commands to make compiler produce verbose output that lists
+        # what "hidden" libraries, object files and flags are used when
+        # linking a shared library.
+        #
+        # There doesn't appear to be a way to prevent this compiler from
+        # explicitly linking system object files so we need to strip them
+        # from the output so that they don't get included in the library
+        # dependencies.
+        output_verbose_link_cmds='templist=`$CC -G $CFLAGS -v conftest.$objext 2>&1 | egrep "\-R|\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+
+	# Archives containing C++ object files must be created using
+	# "CC -xar", where "CC" is the Sun C++ compiler.  This is
+        # necessary to make sure instantiated templates are included
+        # in the archive.
+        old_archive_cmds='$CC -xar -o $oldlib $oldobjs'
+        ;;
+      gcx)
+        # Green Hills C++ Compiler
+        archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
+
+        # The C++ compiler must be used to create the archive.
+        old_archive_cmds='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
+        ;;
+      *)
+        # GNU C++ compiler with Solaris linker
+        if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
+          if $CC --version | egrep -v '^2\.7' > /dev/null; then
+            archive_cmds='$LD -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
+            archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+		$LD -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
+
+            # Commands to make compiler produce verbose output that lists
+            # what "hidden" libraries, object files and flags are used when
+            # linking a shared library.
+            output_verbose_link_cmds="$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
+          else
+            # g++ 2.7 appears to require `-G' NOT `-shared' on this
+            # platform.
+            archive_cmds='$LD -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
+            archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+		$LD -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
+
+            # Commands to make compiler produce verbose output that lists
+            # what "hidden" libraries, object files and flags are used when
+            # linking a shared library.
+            output_verbose_link_cmds="$CC -G $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
+          fi
+
+          hardcode_libdir_flag_spec='${wl}-R $wl$libdir'
+        fi
+        ;;
+    esac   
+    ;;
+  tandem*)
+    case "$cc_basename" in
+      NCC)
+        # NonStop-UX NCC 3.20
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+      *)
+        # FIXME: insert proper C++ library support
+        ld_shlibs=no
+        ;;
+    esac   
+    ;;
+  unixware*)
+    # FIXME: insert proper C++ library support
+    ld_shlibs=no
+    ;;
+  vxworks*)
+    # FIXME: insert proper C++ library support
+    ld_shlibs=no
+    ;;
+  *)
+    # FIXME: insert proper C++ library support
+    ld_shlibs=no
+    ;;
+esac
+
+
+## Compiler Characteristics: PIC flags, static flags, etc
+
+# We don't use cached values here since only the C compiler
+# characteristics should be cached.
+ac_cv_prog_cc_pic=
+ac_cv_prog_cc_shlib=
+ac_cv_prog_cc_wl=
+ac_cv_prog_cc_static=
+ac_cv_prog_cc_no_builtin=
+ac_cv_prog_cc_can_build_shared=$can_build_shared
+
+# It is not enough to reset these cached values, they must be unset.
+unset ac_cv_prog_cc_pic_works
+unset ac_cv_prog_cc_static_works
+
+if test "$with_gcc" = yes; then
+  ac_cv_prog_cc_wl='-Wl,'
+  ac_cv_prog_cc_static='-static'
+
+  case "$host_os" in
+  beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
+    # PIC is the default for these OSes.
+    ;;
+  aix*)
+    # Below there is a dirty hack to force normal static linking with -ldl
+    # The problem is because libdl dynamically linked with both libc and
+    # libC (AIX C++ library), which obviously doesn't included in libraries
+    # list by gcc. This cause undefined symbols with -static flags.
+    # This hack allows C programs to be linked with "-static -ldl", but
+    # we not sure about C++ programs.
+    ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC"
+    ;;
+  cygwin* | mingw* | os2*)
+    # This hack is so that the source file can tell whether it is being
+    # built for inclusion in a dll (and should export symbols for example).
+    ac_cv_prog_cc_pic='-DDLL_EXPORT'
+    ;;
+  amigaos*)
+    # FIXME: we need at least 68020 code to build shared libraries, but
+    # adding the `-m68020' flag to GCC prevents building anything better,
+    # like `-m68040'.
+    ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
+    ;;
+  sysv4*MP*)
+    if test -d /usr/nec; then
+      ac_cv_prog_cc_pic=-Kconform_pic
+    fi
+    ;;
+  *)
+    ac_cv_prog_cc_pic='-fPIC'
+    ;;
+  esac
+else
+  case "$host_os" in
+    aix4*)
+      # All AIX code is PIC.
+      ;;
+    chorus*)
+      case "$cc_basename" in
+      cxch68)
+        # Green Hills C++ Compiler
+        # ac_cv_prog_cc_static="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
+        ;;
+      esac 
+      ;;
+    dgux*)
+      case "$cc_basename" in
+        ec++)
+          ac_cv_prog_cc_pic='-KPIC'
+          ;;
+        ghcx)
+          # Green Hills C++ Compiler
+          ac_cv_prog_cc_pic='-pic'
+          ;;
+        *)
+          ;;
+      esac
+      ;;
+    freebsd*)
+      # FreeBSD uses GNU C++
+      ;;
+    hpux9* | hpux10* | hpux11*)
+      case "$cc_basename" in
+        CC)
+          ac_cv_prog_cc_wl='-Wl,'
+          ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
+          ac_cv_prog_cc_pic='+Z'
+          ;;
+        aCC)
+          ac_cv_prog_cc_wl='-Wl,'
+          ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
+          ac_cv_prog_cc_pic='+Z'
+          ;;
+        *)
+          ;;
+      esac
+      ;;
+    irix5* | irix6*)
+      case "$cc_basename" in
+        CC)
+          ac_cv_prog_cc_wl='-Wl,'
+          ac_cv_prog_cc_static='-non_shared'
+          ac_cv_prog_cc_pic='-KPIC'
+          ;;
+        *)
+          ;;
+      esac
+      ;;
+    linux*)
+      case "$cc_basename" in
+        KCC)
+          # KAI C++ Compiler
+          ac_cv_prog_cc_wl='--backend -Wl,'
+          ac_cv_prog_cc_pic='-fPIC'
+          ;;
+        cxx)
+          # Compaq C++
+          # Make sure the PIC flag is empty.  It appears that all Alpha
+          # Linux and Compaq Tru64 Unix objects are PIC.
+          ac_cv_prog_cc_pic=
+          ac_cv_prog_cc_static='-non_shared'
+          ;;
+        *)
+          ;;
+      esac
+      ;;
+    lynxos*)
+      ;;
+    m88k*)
+      ;;
+    mvs*)
+      case "$cc_basename" in
+        cxx)
+          ac_cv_prog_cc_pic='-W c,exportall'
+          ;;
+        *)
+          ;;
+      esac   
+      ;;
+    netbsd*)
+      ;;
+    osf3* | osf4* | osf5*)
+      case "$cc_basename" in
+        KCC)
+          ac_cv_prog_cc_wl='--backend -Wl,'
+          ;;
+        RCC)
+          # Rational C++ 2.4.1
+          ac_cv_prog_cc_pic='-pic'
+          ;;
+        cxx)
+          # Digital/Compaq C++
+          ac_cv_prog_cc_wl='-Wl,'
+          # Make sure the PIC flag is empty.  It appears that all Alpha
+          # Linux and Compaq Tru64 Unix objects are PIC.
+          ac_cv_prog_cc_pic=
+          ac_cv_prog_cc_static='-non_shared'
+          ;;
+        *)
+          ;;
+      esac
+      ;;
+    psos*)
+      ;;
+    sco*)
+      case "$cc_basename" in
+        CC)
+          ac_cv_prog_cc_pic='-fPIC'
+          ;;
+        *)
+          ;;
+      esac
+      ;;
+    solaris*)
+      case "$cc_basename" in
+        CC)
+          # Sun C++ 4.2, 5.x and Centerline C++
+          ac_cv_prog_cc_pic='-KPIC'
+          ac_cv_prog_cc_static='-Bstatic'
+          ac_cv_prog_cc_wl='-Qoption ld '
+          ;;
+        gcx)
+          # Green Hills C++ Compiler
+          ac_cv_prog_cc_pic='-PIC'
+          ;;
+        *)
+          ;;
+      esac   
+      ;;
+    sunos4*)
+      case "$cc_basename" in
+        CC)
+          # Sun C++ 4.x
+          ac_cv_prog_cc_pic='-pic'
+          ac_cv_prog_cc_static='-Bstatic'
+          ;;
+        lcc)
+          # Lucid
+          ac_cv_prog_cc_pic='-pic'
+          ;;
+        *)
+          ;;
+      esac
+      ;;
+    tandem*)
+      case "$cc_basename" in
+        NCC)
+          # NonStop-UX NCC 3.20
+          ac_cv_prog_cc_pic='-KPIC'
+          ;;
+        *)
+          ;;
+      esac   
+      ;;
+    unixware*)
+      ;;
+    vxworks*)
+      ;;
+    *)
+      ac_cv_prog_cc_can_build_shared=no
+      ;;
+  esac
+fi
+ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
+
+
+# Figure out "hidden" C++ library dependencies from verbose
+# compiler output whening linking a shared library.
+cat > conftest.$ac_ext <<EOF
+class Foo
+{
+public:
+  Foo (void) { a = 0; }
+private:
+  int a;
+};
+EOF
+
+
+if eval $ac_compile 2>&5; 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
+
+  for p in `eval $output_verbose_link_cmds`; 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"; then
+             compiler_lib_search_path="${prev}${p}"
+           else
+             compiler_lib_search_path="${compiler_lib_search_path} ${prev}${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 "$postdeps"; then
+           postdeps="${prev}${p}"
+         else
+           postdeps="${postdeps} ${prev}${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 "$predep_objects"; then
+           predep_objects="$p"
+         else
+           predep_objects="$predep_objects $p"
+         fi
+       else
+         if test -z "$postdep_objects"; then
+           postdep_objects="$p"
+         else
+           postdep_objects="$postdep_objects $p"
+         fi
+       fi
+       ;;
+
+    *) ;; # Ignore the rest.
+
+    esac
+  done
+
+  # Clean up.
+  rm -f a.out
+else
+  echo "ltcf-cxx.sh: error: problem compiling test program"
+fi
+
+$rm -f confest.$objext
+
+need_lc=yes
+if test "$enable_shared" = yes && test "$with_gcc" = yes; then
+  case "$archive_cmds" in
+  *'~'*)
+    # FIXME: we may have to deal with multi-command sequences.
+    ;;
+  '$CC '*)
+    # Test whether the compiler implicitly links with -lc since on some
+    # systems, -lgcc has to come before -lc. If gcc already passes -lc
+    # to ld, don't add -lc before -lgcc.
+    echo $ac_n "checking whether -lc is implicitly linked in... $ac_c" 1>&6
+    if eval "test \"`echo '$''{'ac_cv_cxx_archive_cmds_needs_lc'+set}'`\" = set"; then
+      echo $ac_n "(cached) $ac_c" 1>&6
+      need_lc=$ac_cv_cxx_archive_cmds_needs_lc
+    else
+      $rm conftest*
+      echo "static int dummy;" > conftest.$ac_ext
+      if { (eval echo $progname:@LINENO@: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; }; then
+	# Append any warnings to the config.log.
+	cat conftest.err 1>&5
+
+	soname=conftest
+	lib=conftest
+	libobjs=conftest.o
+	deplibs=
+	compiler_flags=-v
+	linker_flags=-v
+	verstring=
+	output_objdir=.
+	libname=conftest
+	allow_undefined_flag=
+	if { (eval echo $progname:@LINENO@: \"$archive_cmds\") 1>&5; (eval $archive_cmds) 2>&1 | grep " -lc " 1>&5 ; }; then
+	  need_lc=no
+	fi
+      else
+	cat conftest.err 1>&5
+      fi
+    fi
+    $rm conftest*
+    echo "$ac_t$need_lc" 1>&6
+    ;;
+  esac
+fi
+ac_cv_cxx_archive_cmds_needs_lc=$need_lc