solaris iostream long long support

[Gabriel Dos Reis]

Nathan Myers <ncm@nospam.cantrip.org> writes:

| The easiest way to fix 3.0.1 for a Solaris build is to comment out
| lines 3562 to 3564 of libstdc++-v3/configure.  In general, long long
| support probably should depend directly on the specific library
| support features needed, or (better) not depend on any underlying
| library support.  There's really no need to use the C library for
| something as basic as formatting and parsing a long long value.

Agreed.  But does --enable-long-long really just mean support for
formatting and parsing long long?

-- Gaby