g++ istream core dump

[Benjamin Kosnik]

> /apps/race/gcc/lib/gcc-lib/sparc-sun-solaris2.6/3.1/specs Configured
> with: ../gcc-3.1/configure --prefix=/apps/race/gcc--with-gnu-as

It wasn't explicitly clear from your post, but I'm assuming you are
using gcc-3.1.0 on solaris 2.6. If so, you'll need to apply this patch:

2002-05-27  Benjamin Kosnik  <bkoz@redhat.com>

        PR libstdc++/6795.
        * config/os/solaris/solaris2.6/bits/ctype_noninline.h
        (classic_table): Fix.
        * config/os/solaris/solaris2.5/bits/ctype_noninline.h: Same.