c/7653: Define -W strictly in terms of other warning flags

[jsm28@gcc.gnu.org]

Synopsis: Define -W strictly in terms of other warning flags

State-Changed-From-To: open->closed
State-Changed-By: jsm28
State-Changed-When: Mon Aug 26 05:38:23 2002
State-Changed-Why:
    Duplicate of c/7651.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7653