Hotspot compile issue w/ openjdk6-b07

[David Herron]

I'm trying to build on Ubuntu 8.04beta .. it comes with gcc 4.2.3 default

Note that README-builds.html says to use gcc 4.1.x.  My Ubuntu 7.10 
system has 4.1.x

The compile fails on hotspot/src/share/vm/opto/classes.cpp saying

    In file included from .../hotspot/src/share/vm/opto/classes.cpp:36:
    .../hotspot/src/share/vm/opto/classes.hpp: In member function 
'virtual const Type* PartialSubtypeCheckNode::bottom_type() const':
    .../hotspot/src/share/vm/opto/classes.hpp:309: internal compiler 
error: Segmentation fault

This doesn't happen on my Ubuntu 7.10 system ..