undefined reference in libstdc++

[Robert Bihlmeyer]

Hi,

when linking the simplest programs with libstdc++, for example with
  g++ foo.cc -o foo
I always get
  /usr/lib/libstdc++.so: undefined reference to `filebuf virtual table'

This is a Linux system with glibc 2.0.5c. What have I done wrong?

(please cc me)
	Robbe

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