g++ 3.1: libstdc++.so.3 problem

[Oliver Kullmann]

Hi,

I have build gcc 3.1, and mostly it seems to be alright,
my programs compile without any messages and most of them
also run, except of one, where I get the error message:

error while loading shared libraries: libstdc++.so.3: cannot open shared 
object file: No such file or directory

Where should this libstdc++.so.3 be?! It's not in the
implementation lib-directory, which only contains

gcc-lib        libiberty.a   libstdc++.so        libsupc++.a
libgcc_s.so    libstdc++.a   libstdc++.so.4      libsupc++.la
libgcc_s.so.1  libstdc++.la  libstdc++.so.4.0.0

As I said, the compilation doesn't give any warnings, so it shouldn't
be a deprecated header. What is the problem here?!

Any help is greatly appreciated!

Oliver