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  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... $ECHO_C" >&6
  runpath_var=
  allow_undefined_flag_F77=
  enable_shared_with_static_runtimes_F77=no
  archive_cmds_F77=
  archive_expsym_cmds_F77=
  old_archive_From_new_cmds_F77=
  old_archive_from_expsyms_cmds_F77=
  export_dynamic_flag_spec_F77=
  whole_archive_flag_spec_F77=
  thread_safe_flag_spec_F77=
  hardcode_libdir_flag_spec_F77=
  hardcode_libdir_flag_spec_ld_F77=
  hardcode_libdir_separator_F77=
  hardcode_direct_F77=no
  hardcode_minus_L_F77=no
  hardcode_shlibpath_var_F77=unsupported
  link_all_deplibs_F77=unknown
  hardcode_automatic_F77=no
  module_cmds_F77=
  module_expsym_cmds_F77=
  always_export_symbols_F77=no
  export_symbols_cmds_F77='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
  # include_expsyms should be a list of space-separated symbols to be *always*
  # included in the symbol list
  include_expsyms_F77=
  # exclude_expsyms can be an extended regexp of symbols to exclude
  # it will be wrapped by ` (' and `)$', so one must not match beginning or
  # end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
  # as well as any symbol that contains `d'.
  exclude_expsyms_F77="_GLOBAL_OFFSET_TABLE_"
  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
  # platforms (ab)use it in PIC code, but their linkers get confused if
  # the symbol is explicitly referenced.  Since portable code cannot
  # rely on this symbol name, it's probably fine to never include it in
  # preloaded symbol tables.
  extract_expsyms_cmds=
  case $host_os in
  cygwin* | mingw* | pw32*)
    # FIXME: the MSVC++ port hasn't been tested in a loooong time
    # When not using gcc, we currently assume that we are using
    # Microsoft Visual C++.
    if test "$GCC" != yes; then
      with_gnu_ld=no
    fi
    ;;
  openbsd*)
    with_gnu_ld=no
    ;;
  esac
  ld_shlibs_F77=yes
  if test "$with_gnu_ld" = yes; then
    # If archive_cmds runs LD, not CC, wlarc should be empty
    wlarc='${wl}'
    # See if GNU ld supports shared libraries.
    case $host_os in
    aix3* | aix4* | aix5*)
      # On AIX/PPC, the GNU linker is very broken
      if test "$host_cpu" != ia64; then
	ld_shlibs_F77=no
	cat <<EOF 1>&2
*** Warning: the GNU linker, at least up to release 2.9.1, is reported
*** to be unable to reliably create shared libraries on AIX.
*** Therefore, libtool is disabling shared libraries support.  If you
*** really care for shared libraries, you may want to modify your PATH
*** so that a non-GNU linker is found, and then restart.
    amigaos*)
      archive_cmds_F77='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
      hardcode_libdir_flag_spec_F77='-L$libdir'
      hardcode_minus_L_F77=yes
      # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
      # that the semantics of dynamic libraries on AmigaOS, at least up
      # to version 4, is to share data among multiple programs linked
      # with the same dynamic library.  Since this doesn't match the
      # behavior of shared libraries on other platforms, we can't use
      # them.
      ld_shlibs_F77=no
      ;;
    beos*)
      if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
	allow_undefined_flag_F77=unsupported
	# Joseph Beckenbach <jrb3@best.com> says some releases of gcc
	# support --undefined.  This deserves some investigation.  FIXME
	archive_cmds_F77='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
      else
	ld_shlibs_F77=no
      fi
      ;;
    cygwin* | mingw* | pw32*)
      # _LT_AC_TAGVAR(hardcode_libdir_flag_spec, F77) is actually meaningless,
      # as there is no search path for DLLs.
      hardcode_libdir_flag_spec_F77='-L$libdir'
      allow_undefined_flag_F77=unsupported
      always_export_symbols_F77=no
      enable_shared_with_static_runtimes_F77=yes
      export_symbols_cmds_F77='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGS] /s/.* \([^ ]*\)/\1 DATA/'\'' | $SED -e '\''/^[AITW] /s/.* //'\'' | sort | uniq > $export_symbols'
      if $LD --help 2>&1 | grep 'auto-import' > /dev/null; then
        archive_cmds_F77='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000 ${wl}--out-implib,$lib'
	# If the export-symbols file already is a .def file (1st line
	# is EXPORTS), use it as is; otherwise, prepend...
	archive_expsym_cmds_F77='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
	  cp $export_symbols $output_objdir/$soname.def;
	else
	  echo EXPORTS > $output_objdir/$soname.def;
	  cat $export_symbols >> $output_objdir/$soname.def;
	fi~
	$CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000  ${wl}--out-implib,$lib'
      else
	ld_shlibs=no
      fi
      ;;
    netbsd*)
      if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
	archive_cmds_F77='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
	wlarc=
      else
	archive_cmds_F77='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
	archive_expsym_cmds_F77='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
      fi
      ;;
    solaris* | sysv5*)
      if $LD -v 2>&1 | grep 'BFD 2\.8' > /dev/null; then
	ld_shlibs_F77=no
	cat <<EOF 1>&2
*** Warning: The releases 2.8.* of the GNU linker cannot reliably
*** create shared libraries on Solaris systems.  Therefore, libtool
*** is disabling shared libraries support.  We urge you to upgrade GNU
*** binutils to release 2.9.1 or newer.  Another option is to modify
*** your PATH or compiler configuration so that the native linker is
*** used, and then restart.
EOF
      elif $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
	archive_cmds_F77='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
	archive_expsym_cmds_F77='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
      else
	ld_shlibs_F77=no
      fi
      ;;
    sunos4*)
      archive_cmds_F77='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
      wlarc=
      hardcode_direct_F77=yes
      hardcode_shlibpath_var_F77=no
      ;;
  linux*)
    if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
        tmp_archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
	archive_cmds_F77="$tmp_archive_cmds"
      supports_anon_versioning=no
      case `$LD -v 2>/dev/null` in
        *\ 01.* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11
        *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
        *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
        *\ 2.11.*) ;; # other 2.11 versions
        *) supports_anon_versioning=yes ;;
      esac
      if test $supports_anon_versioning = yes; then
        archive_expsym_cmds_F77='$echo "{ global:" > $output_objdir/$libname.ver~
cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
$echo "local: *; };" >> $output_objdir/$libname.ver~
        $CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
      else
        archive_expsym_cmds_F77="$tmp_archive_cmds"
      fi
    else
      ld_shlibs_F77=no
    fi
    ;;
    *)
      if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
	archive_cmds_F77='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
	archive_expsym_cmds_F77='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
      else
	ld_shlibs_F77=no
      fi
      ;;
    esac
    if test "$ld_shlibs_F77" = yes; then
      runpath_var=LD_RUN_PATH
      hardcode_libdir_flag_spec_F77='${wl}--rpath ${wl}$libdir'
      export_dynamic_flag_spec_F77='${wl}--export-dynamic'
      # ancient GNU ld didn't support --whole-archive et. al.
      if $LD --help 2>&1 | grep 'no-whole-archive' > /dev/null; then
 	whole_archive_flag_spec_F77="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
      else
  	whole_archive_flag_spec_F77=
      fi
    fi
  else
    # PORTME fill in a description of your system's linker (not GNU ld)
    case $host_os in
    aix3*)
      allow_undefined_flag_F77=unsupported
      always_export_symbols_F77=yes
      archive_expsym_cmds_F77='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
      # Note: this linker hardcodes the directories in LIBPATH if there
      # are no directories specified by -L.
      hardcode_minus_L_F77=yes
      if test "$GCC" = yes && test -z "$link_static_flag"; then
	# Neither direct hardcoding nor static linking is supported with a
	# broken collect2.
	hardcode_direct_F77=unsupported
      fi
      ;;
    aix4* | aix5*)
      if test "$host_cpu" = ia64; then
	# On IA64, the linker does run time linking by default, so we don't
	# have to do anything special.
	aix_use_runtimelinking=no
	exp_sym_flag='-Bexport'
	no_entry_flag=""
      else
	# 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 $NM -V 2>&1 | grep 'GNU' > /dev/null; then
	  export_symbols_cmds_F77='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$2 == "T") || (\$2 == "D") || (\$2 == "B")) && (substr(\$3,1,1) != ".")) { print \$3 } }'\'' | sort -u > $export_symbols'
	else
	  export_symbols_cmds_F77='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$2 == "T") || (\$2 == "D") || (\$2 == "B")) && (substr(\$3,1,1) != ".")) { print \$3 } }'\'' | sort -u > $export_symbols'
	fi
	aix_use_runtimelinking=no
	# Test if we are trying to use run time linking or normal
	# AIX style linking. If -brtl is somewhere in LDFLAGS, we
	# need to do runtime linking.
	case $host_os in aix4.[23]|aix4.[23].*|aix5*)
	  for ld_flag in $LDFLAGS; do
  	  if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
  	    aix_use_runtimelinking=yes
  	    break
  	  fi
	  done
	esac
	exp_sym_flag='-bexport'
	no_entry_flag='-bnoentry'
      fi
      # When large executables or shared objects are built, AIX ld can
      # have problems creating the table of contents.  If linking a library
      # or program results in "error TOC overflow" add -mminimal-toc to
      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
      archive_cmds_F77=''
      hardcode_direct_F77=yes
      hardcode_libdir_separator_F77=':'
      link_all_deplibs_F77=yes
      if test "$GCC" = yes; then
	case $host_os in aix4.012|aix4.012.*)
	# We only want to do this on AIX 4.2 and lower, the check
	# below for broken collect2 doesn't work under 4.3+
	  collect2name=`${CC} -print-prog-name=collect2`
	  if test -f "$collect2name" && \
  	   strings "$collect2name" | grep resolve_lib_name >/dev/null
	  then
  	  # We have reworked collect2
  	  hardcode_direct_F77=yes
	  else
  	  # We have old collect2
  	  hardcode_direct_F77=unsupported
  	  # It fails to find uninstalled libraries when the uninstalled
  	  # path is not listed in the libpath.  Setting hardcode_minus_L
  	  # to unsupported forces relinking
  	  hardcode_minus_L_F77=yes
  	  hardcode_libdir_flag_spec_F77='-L$libdir'
  	  hardcode_libdir_separator_F77=
	  fi
	esac
	shared_flag='-shared'
      else
	# not using gcc
	if test "$host_cpu" = ia64; then
  	# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
  	# chokes on -Wl,-G. The following line is correct:
	  shared_flag='-G'
	else
  	if test "$aix_use_runtimelinking" = yes; then
	    shared_flag='${wl}-G'
	  else
	    shared_flag='${wl}-bM:SRE'
  	fi
	fi
      fi
      # It seems that -bexpall does not export symbols beginning with
      # underscore (_), so it is better to generate a list of symbols to export.
      always_export_symbols_F77=yes
      if test "$aix_use_runtimelinking" = yes; then
	# Warning - without using the other runtime loading flags (-brtl),
	# -berok will link without error, but may produce a broken library.
	allow_undefined_flag_F77='-berok'
       # Determine the default libpath from the value encoded in an empty executable.
       cat >conftest.$ac_ext <<_ACEOF
      program main
      end
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_f77_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
}'`
# Check for a 64-bit object if we didn't find anything.
if test -z "$aix_libpath"; then aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
}'`; fi
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       hardcode_libdir_flag_spec_F77='${wl}-blibpath:$libdir:'"$aix_libpath"
	archive_expsym_cmds_F77="\$CC"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then echo "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols $shared_flag"
       else
	if test "$host_cpu" = ia64; then
	  hardcode_libdir_flag_spec_F77='${wl}-R $libdir:/usr/lib:/lib'
	  allow_undefined_flag_F77="-z nodefs"
	  archive_expsym_cmds_F77="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
	else
	 # Determine the default libpath from the value encoded in an empty executable.
	 cat >conftest.$ac_ext <<_ACEOF
      program main
      end
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_f77_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
}'`
# Check for a 64-bit object if we didn't find anything.
if test -z "$aix_libpath"; then aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
}'`; fi
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
	 hardcode_libdir_flag_spec_F77='${wl}-blibpath:$libdir:'"$aix_libpath"
	  # Warning - without using the other run time loading flags,
	  # -berok will link without error, but may produce a broken library.
	  no_undefined_flag_F77=' ${wl}-bernotok'
	  allow_undefined_flag_F77=' ${wl}-berok'
	  # -bexpall does not export symbols beginning with underscore (_)
	  always_export_symbols_F77=yes
	  # Exported symbols can be pulled into shared objects from archives
	  whole_archive_flag_spec_F77=' '
	  archive_cmds_need_lc_F77=yes
	  # This is similar to how AIX traditionally builds it's shared libraries.
	  archive_expsym_cmds_F77="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
	fi
      fi
      ;;
    amigaos*)
      archive_cmds_F77='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
      hardcode_libdir_flag_spec_F77='-L$libdir'
      hardcode_minus_L_F77=yes
      # see comment about different semantics on the GNU ld section
      ld_shlibs_F77=no
      ;;
    bsdi[45]*)
      export_dynamic_flag_spec_F77=-rdynamic
      ;;
    cygwin* | mingw* | pw32*)
      # When not using gcc, we currently assume that we are using
      # Microsoft Visual C++.
      # hardcode_libdir_flag_spec is actually meaningless, as there is
      # no search path for DLLs.
      hardcode_libdir_flag_spec_F77=' '
      allow_undefined_flag_F77=unsupported
      # Tell ltmain to make .lib files, not .a files.
      libext=lib
      # Tell ltmain to make .dll files, not .so files.
      shrext_cmds=".dll"
      # FIXME: Setting linknames here is a bad hack.
      archive_cmds_F77='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | $SED -e '\''s/ -lc$//'\''` -link -dll~linknames='
      # The linker will automatically build a .lib file if we build a DLL.
      old_archive_From_new_cmds_F77='true'
      # FIXME: Should let the user specify the lib program.
      old_archive_cmds_F77='lib /OUT:$oldlib$oldobjs$old_deplibs'
      fix_srcfile_path='`cygpath -w "$srcfile"`'
      enable_shared_with_static_runtimes_F77=yes
      ;;
    darwin* | rhapsody*)
      case "$host_os" in
        rhapsody* | darwin1.[012])
         allow_undefined_flag_F77='${wl}-undefined ${wl}suppress'
         ;;
       *) # Darwin 1.3 on
         if test -z ${MACOSX_DEPLOYMENT_TARGET} ; then
           allow_undefined_flag_F77='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
         else
           case ${MACOSX_DEPLOYMENT_TARGET} in
             10.[012])
               allow_undefined_flag_F77='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
               ;;
             10.*)
               allow_undefined_flag_F77='${wl}-undefined ${wl}dynamic_lookup'
               ;;
           esac
         fi
         ;;
      esac
      archive_cmds_need_lc_F77=no
      hardcode_direct_F77=no
      hardcode_automatic_F77=yes
      hardcode_shlibpath_var_F77=unsupported
      whole_archive_flag_spec_F77=''
      link_all_deplibs_F77=yes
    if test "$GCC" = yes ; then
    	output_verbose_link_cmd='echo'
        archive_cmds_F77='$CC -dynamiclib $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring'
      module_cmds_F77='$CC $allow_undefined_flag -o $lib -bundle $libobjs $deplibs$compiler_flags'
      # Don't fix this by using the ld -exported_symbols_list flag, it doesn't exist in older darwin ld's
      archive_expsym_cmds_F77='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -dynamiclib $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
      module_expsym_cmds_F77='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC $allow_undefined_flag  -o $lib -bundle $libobjs $deplibs$compiler_flags~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
    else
      case "$cc_basename" in
        xlc*)
         output_verbose_link_cmd='echo'
         archive_cmds_F77='$CC -qmkshrobj $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-install_name ${wl}`echo $rpath/$soname` $verstring'
         module_cmds_F77='$CC $allow_undefined_flag -o $lib -bundle $libobjs $deplibs$compiler_flags'
          # Don't fix this by using the ld -exported_symbols_list flag, it doesn't exist in older darwin ld's
         archive_expsym_cmds_F77='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -qmkshrobj $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-install_name ${wl}$rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
          module_expsym_cmds_F77='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC $allow_undefined_flag  -o $lib -bundle $libobjs $deplibs$compiler_flags~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
          ;;
       *)
         ld_shlibs_F77=no
          ;;
      esac
    fi
      ;;
    dgux*)
      archive_cmds_F77='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
      hardcode_libdir_flag_spec_F77='-L$libdir'
      hardcode_shlibpath_var_F77=no
      ;;
    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
    # support.  Future versions do this automatically, but an explicit c++rt0.o
    # does not break anything, and helps significantly (at the cost of a little
    # extra space).
    freebsd2.2*)
      archive_cmds_F77='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
      hardcode_libdir_flag_spec_F77='-R$libdir'
      hardcode_direct_F77=yes
      hardcode_shlibpath_var_F77=no
      ;;
    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
    freebsd2*)
      archive_cmds_F77='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
      hardcode_direct_F77=yes
      hardcode_minus_L_F77=yes
      hardcode_shlibpath_var_F77=no
      ;;
    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
    freebsd* | kfreebsd*-gnu)
      archive_cmds_F77='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
      hardcode_libdir_flag_spec_F77='-R$libdir'
      hardcode_direct_F77=yes
      hardcode_shlibpath_var_F77=no
      ;;
    hpux9*)
      if test "$GCC" = yes; then
	archive_cmds_F77='$rm $output_objdir/$soname~$CC -shared -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
      else
	archive_cmds_F77='$rm $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
      fi
      hardcode_libdir_flag_spec_F77='${wl}+b ${wl}$libdir'
      hardcode_libdir_separator_F77=:
      hardcode_direct_F77=yes
      # hardcode_minus_L: Not really in the search PATH,
      # but as the default location of the library.
      hardcode_minus_L_F77=yes
      export_dynamic_flag_spec_F77='${wl}-E'
      ;;
    hpux10* | hpux11*)
      if test "$GCC" = yes -a "$with_gnu_ld" = no; then
	case "$host_cpu" in
	hppa*64*|ia64*)
	  archive_cmds_F77='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
	  ;;
	*)
	  archive_cmds_F77='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
	  ;;
	esac
      else
	case "$host_cpu" in
	hppa*64*|ia64*)
	  archive_cmds_F77='$LD -b +h $soname -o $lib $libobjs $deplibs $linker_flags'
	  ;;
	*)
	  archive_cmds_F77='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
	  ;;
	esac
      fi
      if test "$with_gnu_ld" = no; then
	case "$host_cpu" in
	hppa*64*)
	  hardcode_libdir_flag_spec_F77='${wl}+b ${wl}$libdir'
	  hardcode_libdir_flag_spec_ld_F77='+b $libdir'
	  hardcode_libdir_separator_F77=:
	  hardcode_direct_F77=no
	  hardcode_shlibpath_var_F77=no
	  ;;
	ia64*)
	  hardcode_libdir_flag_spec_F77='-L$libdir'
	  hardcode_direct_F77=no
	  hardcode_shlibpath_var_F77=no
	  # hardcode_minus_L: Not really in the search PATH,
	  # but as the default location of the library.
	  hardcode_minus_L_F77=yes
	  ;;
	*)
	  hardcode_libdir_flag_spec_F77='${wl}+b ${wl}$libdir'
	  hardcode_libdir_separator_F77=:
	  hardcode_direct_F77=yes
	  export_dynamic_flag_spec_F77='${wl}-E'
	  # hardcode_minus_L: Not really in the search PATH,
	  # but as the default location of the library.
	  hardcode_minus_L_F77=yes
	  ;;
	esac
      fi
      ;;
    irix5* | irix6* | nonstopux*)
      if test "$GCC" = yes; then
	archive_cmds_F77='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
      else
	archive_cmds_F77='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
	hardcode_libdir_flag_spec_ld_F77='-rpath $libdir'
      fi
      hardcode_libdir_flag_spec_F77='${wl}-rpath ${wl}$libdir'
      hardcode_libdir_separator_F77=:
      link_all_deplibs_F77=yes
      ;;
    netbsd*)
      if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
	archive_cmds_F77='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
      else
	archive_cmds_F77='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
      fi
      hardcode_libdir_flag_spec_F77='-R$libdir'
      hardcode_direct_F77=yes
      hardcode_shlibpath_var_F77=no
      ;;
    newsos6)
      archive_cmds_F77='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
      hardcode_direct_F77=yes
      hardcode_libdir_flag_spec_F77='${wl}-rpath ${wl}$libdir'
      hardcode_libdir_separator_F77=:
      hardcode_shlibpath_var_F77=no
      ;;
    openbsd*)
      hardcode_direct_F77=yes
      hardcode_shlibpath_var_F77=no
      if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
	archive_cmds_F77='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
	archive_expsym_cmds_F77='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols'
	hardcode_libdir_flag_spec_F77='${wl}-rpath,$libdir'
	export_dynamic_flag_spec_F77='${wl}-E'
      else
       case $host_os in
	 openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
	   archive_cmds_F77='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
	   hardcode_libdir_flag_spec_F77='-R$libdir'
	   ;;
	 *)
	   archive_cmds_F77='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
	   hardcode_libdir_flag_spec_F77='${wl}-rpath,$libdir'
	   ;;
       esac
      fi
      ;;
    os2*)
      hardcode_libdir_flag_spec_F77='-L$libdir'
      hardcode_minus_L_F77=yes
      allow_undefined_flag_F77=unsupported
      archive_cmds_F77='$echo "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$echo "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~$echo DATA >> $output_objdir/$libname.def~$echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~$echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
      old_archive_From_new_cmds_F77='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
      ;;
    osf3*)
      if test "$GCC" = yes; then
	allow_undefined_flag_F77=' ${wl}-expect_unresolved ${wl}\*'
	archive_cmds_F77='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
      else
	allow_undefined_flag_F77=' -expect_unresolved \*'
	archive_cmds_F77='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
      fi
      hardcode_libdir_flag_spec_F77='${wl}-rpath ${wl}$libdir'
      hardcode_libdir_separator_F77=:
      ;;
    osf4* | osf5*)	# as osf3* with the addition of -msym flag
      if test "$GCC" = yes; then
	allow_undefined_flag_F77=' ${wl}-expect_unresolved ${wl}\*'
	archive_cmds_F77='$CC -shared${allow_undefined_flag} $libobjs $deplibs $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 $lib'
	hardcode_libdir_flag_spec_F77='${wl}-rpath ${wl}$libdir'
      else
	allow_undefined_flag_F77=' -expect_unresolved \*'
	archive_cmds_F77='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -msym -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
	archive_expsym_cmds_F77='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; echo "-hidden">> $lib.exp~
	$LD -shared${allow_undefined_flag} -input $lib.exp $linker_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib~$rm $lib.exp'
	# Both c and cxx compiler support -rpath directly
	hardcode_libdir_flag_spec_F77='-rpath $libdir'
      fi
      hardcode_libdir_separator_F77=:
      ;;
    sco3.2v5*)
      archive_cmds_F77='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
      hardcode_shlibpath_var_F77=no
      export_dynamic_flag_spec_F77='${wl}-Bexport'
      runpath_var=LD_RUN_PATH
      hardcode_runpath_var=yes
      ;;
    solaris*)
      no_undefined_flag_F77=' -z text'
      if test "$GCC" = yes; then
	archive_cmds_F77='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
	archive_expsym_cmds_F77='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
	  $CC -shared ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$rm $lib.exp'
      else
	archive_cmds_F77='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
	archive_expsym_cmds_F77='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
  	$LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
      fi
      hardcode_libdir_flag_spec_F77='-R$libdir'
      hardcode_shlibpath_var_F77=no
      case $host_os in
      solaris2.[0-5] | solaris2.[0-5].*) ;;
      *) # Supported since Solaris 2.6 (maybe 2.5.1?)
	whole_archive_flag_spec_F77='-z allextract$convenience -z defaultextract' ;;
      esac
      link_all_deplibs_F77=yes
      ;;
    sunos4*)
      if test "x$host_vendor" = xsequent; then
	# Use $CC to link under sequent, because it throws in some extra .o
	# files that make .init and .fini sections work.
	archive_cmds_F77='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
      else
	archive_cmds_F77='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
      fi
      hardcode_libdir_flag_spec_F77='-L$libdir'
      hardcode_direct_F77=yes
      hardcode_minus_L_F77=yes
      hardcode_shlibpath_var_F77=no
      ;;
    sysv4)
      case $host_vendor in
	sni)
	  archive_cmds_F77='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
	  hardcode_direct_F77=yes # is this really true???
	;;
	siemens)
	  ## LD is ld it makes a PLAMLIB
	  ## CC just makes a GrossModule.
	  archive_cmds_F77='$LD -G -o $lib $libobjs $deplibs $linker_flags'
	  reload_cmds_F77='$CC -r -o $output$reload_objs'
	  hardcode_direct_F77=no
        ;;
	motorola)
	  archive_cmds_F77='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
	  hardcode_direct_F77=no #Motorola manual says yes, but my tests say they lie
	;;
      esac
      runpath_var='LD_RUN_PATH'
      hardcode_shlibpath_var_F77=no
      ;;
    sysv4.3*)
      archive_cmds_F77='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
      hardcode_shlibpath_var_F77=no
      export_dynamic_flag_spec_F77='-Bexport'
      ;;
    sysv4*MP*)
      if test -d /usr/nec; then
	archive_cmds_F77='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
	hardcode_shlibpath_var_F77=no
	runpath_var=LD_RUN_PATH
	hardcode_runpath_var=yes
	ld_shlibs_F77=yes
      fi
      ;;
    sysv4.2uw2*)
      archive_cmds_F77='$LD -G -o $lib $libobjs $deplibs $linker_flags'
      hardcode_direct_F77=yes
      hardcode_minus_L_F77=no
      hardcode_shlibpath_var_F77=no
      hardcode_runpath_var=yes
      runpath_var=LD_RUN_PATH
      ;;
   sysv5OpenUNIX8* | sysv5UnixWare7* |  sysv5uw[78]* | unixware7*)
      no_undefined_flag_F77='${wl}-z ${wl}text'
      if test "$GCC" = yes; then
	archive_cmds_F77='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
      else
	archive_cmds_F77='$CC -G ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
      fi
      runpath_var='LD_RUN_PATH'
      hardcode_shlibpath_var_F77=no
      ;;
    sysv5*)
      no_undefined_flag_F77=' -z text'
      # $CC -shared without GNU ld will not create a library from C++
      # object files and a static libstdc++, better avoid it by now
      archive_cmds_F77='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
      archive_expsym_cmds_F77='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
  		$LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
      hardcode_libdir_flag_spec_F77=
      hardcode_shlibpath_var_F77=no
      runpath_var='LD_RUN_PATH'
      ;;
    uts4*)
      archive_cmds_F77='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
      hardcode_libdir_flag_spec_F77='-L$libdir'
      hardcode_shlibpath_var_F77=no
      ;;
echo "$as_me:$LINENO: result: $ld_shlibs_F77" >&5
echo "${ECHO_T}$ld_shlibs_F77" >&6
test "$ld_shlibs_F77" = no && can_build_shared=no
variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
if test "$GCC" = yes; then
  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
fi
#
# Do we need to explicitly link libc?
#
case "x$archive_cmds_need_lc_F77" in
x|xyes)
  # Assume -lc should be added
  archive_cmds_need_lc_F77=yes
  if test "$enable_shared" = yes && test "$GCC" = yes; then
    case $archive_cmds_F77 in
    *'~'*)
      # FIXME: we may have to deal with multi-command sequences.
      ;;
    '$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 "$as_me:$LINENO: checking whether -lc should be explicitly linked in" >&5
echo $ECHO_N "checking whether -lc should be explicitly linked in... $ECHO_C" >&6
      $rm conftest*
      printf "$lt_simple_compile_test_code" > conftest.$ac_ext
      if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } 2>conftest.err; then
        soname=conftest
        lib=conftest
        libobjs=conftest.$ac_objext
        deplibs=
        wl=$lt_prog_compiler_wl_F77
        compiler_flags=-v
        linker_flags=-v
        verstring=
        output_objdir=.
        libname=conftest
        lt_save_allow_undefined_flag=$allow_undefined_flag_F77
        allow_undefined_flag_F77=
        if { (eval echo "$as_me:$LINENO: \"$archive_cmds_F77 2\>\&1 \| grep \" -lc \" \>/dev/null 2\>\&1\"") >&5
  (eval $archive_cmds_F77 2\>\&1 \| grep \" -lc \" \>/dev/null 2\>\&1) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }
        then
	  archive_cmds_need_lc_F77=no
        else
	  archive_cmds_need_lc_F77=yes
        fi
        allow_undefined_flag_F77=$lt_save_allow_undefined_flag
      else
        cat conftest.err 1>&5
      fi
      $rm conftest*
      echo "$as_me:$LINENO: result: $archive_cmds_need_lc_F77" >&5
echo "${ECHO_T}$archive_cmds_need_lc_F77" >&6
      ;;
    esac
  fi
  ;;
esac
echo "$as_me:$LINENO: checking dynamic linker characteristics" >&5
echo $ECHO_N "checking dynamic linker characteristics... $ECHO_C" >&6
library_names_spec=
libname_spec='lib$name'
soname_spec=
shrext_cmds=".so"
postinstall_cmds=
postuninstall_cmds=
finish_cmds=
finish_eval=
shlibpath_var=
shlibpath_overrides_runpath=unknown
version_type=none
dynamic_linker="$host_os ld.so"
sys_lib_dlsearch_path_spec="/lib /usr/lib"
if test "$GCC" = yes; then
  sys_lib_search_path_spec=`$CC -print-search-dirs | grep "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
  if echo "$sys_lib_search_path_spec" | grep ';' >/dev/null ; then
    # if the path contains ";" then we assume it to be the separator
    # otherwise default to the standard path separator (i.e. ":") - it is
    # assumed that no part of a normal pathname contains ";" but that should
    # okay in the real world where ";" in dirpaths is itself problematic.
    sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
  else
    sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
  fi
else
  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
fi
need_lib_prefix=unknown
hardcode_into_libs=no
# when you set need_version to no, make sure it does not cause -set_version
# flags to be left without arguments
need_version=unknown
case $host_os in
aix3*)
  version_type=linux
  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
  shlibpath_var=LIBPATH
  # AIX 3 has no versioning support, so we append a major version to the name.
  soname_spec='${libname}${release}${shared_ext}$major'
  ;;
aix4* | aix5*)
  version_type=linux
  need_lib_prefix=no
  need_version=no
  hardcode_into_libs=yes
  if test "$host_cpu" = ia64; then
    # AIX 5 supports IA64
    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
    shlibpath_var=LD_LIBRARY_PATH
  else
    # With GCC up to 2.95.x, collect2 would create an import file
    # for dependence libraries.  The import file would start with
    # the line `#! .'.  This would cause the generated library to
    # depend on `.', always an invalid library.  This was fixed in
    # development snapshots of GCC prior to 3.0.
    case $host_os in
      aix4 | aix4.[01] | aix4.[01].*)
      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
	   echo ' yes '
	   echo '#endif'; } | ${CC} -E - | grep yes > /dev/null; then
	:
      else
	can_build_shared=no
      fi
      ;;
    esac
    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
    # soname into executable. Probably we can add versioning support to
    # collect2, so additional links can be useful in future.
    if test "$aix_use_runtimelinking" = yes; then
      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
      # instead of lib<name>.a to let people know that these are not
      # typical AIX shared libraries.
      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
    else
      # We preserve .a as extension for shared libraries through AIX4.2
      # and later when we are not doing run time linking.
      library_names_spec='${libname}${release}.a $libname.a'
      soname_spec='${libname}${release}${shared_ext}$major'
    fi
    shlibpath_var=LIBPATH
  fi
  ;;