[Bug libstdc++/16182] wctype.h not included by c++locale_internal.h

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
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          Component|bootstrap                   |libstdc++
   Target Milestone|---                         |3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16182