Are tr1 headers available for gcc v3.4.6?

Are tr1 headers available for g++ v3.4.6? If so, how can I locate them at co开发者_StackOverflow中文版mpile time.

The following is failing to compile:

#include <tr1/memory>

With the following error:

myModule.h:20:24: tr1/memory: No such file or directory

Do I need to move to a later compiler or do I have the headers somewhere?

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As an alternative, Boost provides a TR1 implementation too.