[v3] Add back couple of includes for generic; clean up

[Paolo Carlini]

Hi,

Gerald Pfeifer reported privately troubles with freebsd. Also, a nice
clean up to _M_extract_float that I didn't consider before.

Tested x86-linux, both gnu /and/ generic locale models.

Paolo.

///////////
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: CL_various
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20031029/a7032d8c/attachment.ksh>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: patch_various
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20031029/a7032d8c/attachment-0001.ksh>