PATCH: Fix libstdc++ testsuite on systems without ranlib

[Paolo Bonzini]

>> The toplevel changes are okay now, but please change : to true also in the
>> test for STRIP.  (And commit to both gcc and src).
>
> Done for gcc.  Wrt. src, I see there are many other uncommited changes,
> some even requireing additional files.  I'd like to leave this alone for
> the moment.

If your patch doesn't conflict, please install it.

Paolo