issues following 2.95 -> 2.96 upgrade

[Gisli Ottarsson]

I have just completed an upgrade from 2.95 to 2.96, and have
encountered a number of issues.  First, here is the version info:

% gcc -v
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs
gcc version 2.96 20000702 (experimental)

The two problems below only occur during optimization (-O3)

First, what does the message "case label `my_enum' within scope of
cleanup or variable array" mean?

Second, here is an "Internal compiler error:"

In file included from .../include/AsSolverEventManager.h:22,
                 from .../include/AsCurve.h:33,
                 from .../AsSystem/AsCurve.cxx:9:
/usr/include/g++-3/stl_deque.h: In instantiation of `deque<MDIEvent *, allocator<MDIEvent *>, 0>':
/usr/include/g++-3/stl_stack.h:45:   instantiated from `stack<MDIEvent *, deque<MDIEvent *, allocator<MDIEvent *>, 0> >'
.../include/MDIEventManager.h:126:   instantiated from here
/usr/include/g++-3/stl_deque.h:533: Internal compiler error.
/usr/include/g++-3/stl_deque.h:533: Please submit a full bug report.
/usr/include/g++-3/stl_deque.h:533: See
<URL: http://www.gnu.org/software/gcc/bugs.html > for instructions.