[Dev-C++] (Kein Thema)

[<Ulr...@ao...>]

Dear community,
who knows which library has to be added if the linker complains in  working
on libstdc++.a undefined references to 
wctob , btowc, wctype , mbttowc
The libraries in action are 
-lopenglut -lglu32 -lopengl32 -lwinmm -lgdi32
Would be great to get a hind. Is it some wide character support? but  where?
Best regards
Ulrich