Instantiating templates in a shared library

[Jon Brumfitt]

The template instantiation approach, used in egcs-1.1.1, appears
to work well. However, I have a problem trying to use templates
within a shared library - the templates get instantiated in each
executable that uses the library, which rather defeats my purpose
in using a shared library.

The only classes which are relevant to users of the library are
NON-template derived classes, such as:

   class Foo : public Bar<int> {};

However, the client program has to include the header file, which
defines Foo. This results in the template class Bar<int> being
instantiated in the program.

I have tried explicitly instantiating the template in the shared 
library. This does not actually help, because there is also a copy 
instantiated in the executable.

I should welcome any ideas on how to solve this problem.

Thanks

Jon