problem with unresolved symbols

Hi,

I have successfully compiled and installed pgth-2.0.3 on a Gentoo linux 
i386 system.

Unfortunately when I try to compile vim I get the an unresolved symbol 
error:

/usr/lib/gcc-lib/i686-pc-linux-gnu/3.2/../../../libpthread.so: 
undefined reference to `pthread_initialize'
/usr/lib/gcc-lib/i686-pc-linux-gnu/3.2/../../../libpthread.so: 
undefined reference to `pthread_shutdown'

I verified that libpthread indeed does not contain this functions. Is 
this an know incompatibility? Or did I do something wrong?

Thanks for your help

Dominik