problems with AIX 4/5 and Visual Age compiler

[ZIGLIO, Frediano, VF-IT]

libtool 1.5.x has problems compiling shared library under AIX if Visual
Age it's used. Visual Age prefix all functions name with '.' however
libtool 1.5.x remove all symbols with '.'. 
>From libtool.m4 you can find such code

  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
      _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs
$convenience | awk '\''{ if (((\[$]2 == "T") || (\[$]2 == "D") || (\[$]2
== "B")) && ([substr](\[$]3,1,1) != ".")) { print \[$]3 } }'\'' | sort
-u > $export_symbols'
    else
      _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs
$convenience | awk '\''{ if (((\[$]2 == "T") || (\[$]2 == "D") || (\[$]2
== "B")) && ([substr](\[$]3,1,1) != ".")) { print \[$]3 } }'\'' | sort
-u > $export_symbols'
    fi
    ;;

and

    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
          _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs
$convenience | awk '\''{ if (((\[$]2 == "T") || (\[$]2 == "D") || (\[$]2
== "B")) && ([substr](\[$]3,1,1) != ".")) { print \[$]3 } }'\'' | sort
-u > $export_symbols'
        else
          _LT_TAGVAR(export_symbols_cmds, $1)='$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

As you can see awk strip symbols that starts with '.', so linking
library give a lot of undefined symbols.
I have nor AIX nor Visual Age, I received this report from FreeTDS
(www.freetds.org) mailing list.

freddy77