[v3] Minor tweak to configure.ac

[Paolo Carlini]

Hi,

committed to mainline.

Paolo.

///////////////
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: CL_config_m1.txt
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20080818/ea4958eb/attachment.txt>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: patch_config_m1.txt
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20080818/ea4958eb/attachment-0001.txt>