[C++0x] fix libstdc++/41005 - missing fstream instantiations

[Ralf Wildenhues]

Hello Jonathan,

* Jonathan Wakely wrote on Sun, Aug 16, 2009 at 12:30:27PM CEST:
> Here's the 4.4 patch, but regenerating configure after changing
> configure.ac adds a lot of changes that I don't think I caused -
> should these have gone in at some previous time when configure.ac was
> updated?

I don't get these generated changes when running autoconf on branch-4_4
with your patch applied.  Any chance your toplevel config/ directory is
from trunk while you only switched your libstdc++-v3 directory to
branch-4_4?

I'm afraid you should checkout the full branch, not just parts of it,
for backporting.

> I used autoconf 2.59 and automake 1.9.6 as usual.

Cheers,
Ralf