libstdc++/8463: std::ios_base has a non-virtual destructor

[john_maddock@compuserve.com]

>Number:         8463
>Category:       libstdc++
>Synopsis:       std::ios_base has a non-virtual destructor
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          wrong-code
>Submitter-Id:   net
>Arrival-Date:   Tue Nov 05 05:06:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     john_maddock@compuserve.com
>Release:        gcc-3.2
>Organization:
>Environment:
SUSE linux 7.0
>Description:
std::ios_base has a non-virtual destructor, when the standard clearly requires a virtual destructor.
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: