wstring not found

[Jonas Dietsche]

Hi list,

I have a problem in compiling some sources using wstring.
I always get the following error:
error: `wstring' does not name a type

Some words about my setup.
I want to compile my app for a ARM system. For building the toolchain I 
used buildroot - latest snapshot.
I tried it with uClibc-0.9.28, uClibc-0.9.27 with the same results. 
WCHAR support is enabled.

For my host system it compiles just fine...

Can anybody help?

Thank you.
Jonas