std::call_once without TLS

[Paolo Carlini]

... I also applied the below, mainline and branch, of course.

Paolo.

///////////////
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: CL
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20090507/50dc2912/attachment.ksh>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: patchlet
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20090507/50dc2912/attachment-0001.ksh>