[v3] Fix -Wall testing issues

[Paolo Carlini]

... oops, forgot this bit, with it, regression testing with -Wall is
clean again.

Paolo.

/////////////
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: CL_t_w_2
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20100125/db483717/attachment.ksh>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: patch_t_w_2
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20100125/db483717/attachment-0001.ksh>