libstdc++ in 4.5.0 b3

[Nick.SIMON at syntegra.bt.co.uk]

For some reason this isn't getting included in builds, with the result that
cout, endl etc come up as undefined. As well as in my own code, this occurs
in cdtest if it's set to use cout.

There is no libstdc++ under the install directory, 'though there is in
/opt/rtems/lib...

The configuration setting is:

../rtems-4.5.0-beta3/configure \
     --target=powerpc-rtems \
     --prefix=/usr/rtm-src/tools/install-rtems-4.5.0-beta3 \
     --disable-posix \
     --disable-itron \
     --enable-cxx \
     --enable-rtemsbsp="dhe860boot"


Yet more assistance gratefully received.

-- Nick Simon