Hello all, I didn't get an answer to my question about a good C++/Templates mailing list (I am sure there is one, or maybe our c**p email system has culled any replies), so, since I am sure that the problem I am encountering must have been solved/avoided in the Boost libs I will ask here. I have a template, solely defined in a header file header.h. This template has a static factory function in case that's important. This is used by code in a shared library, shared.cpp->shared.so The main application (app) also uses the template. When I link my app without including the shared library, all is fine. When I start to use the shared library, I get a seg fault on app startup (doesn't even get to main()). I think this is a translation unit problem (Hope term is correct). When the shared.so is compiled, it must create instances/functions based on the template. When app is compiled, it also must be instantiating the same functions, since I don't think it can know about the ones in shared.so. So, when system attempts to start up there is some sort of conflict between the template instances in the shared lib and the ones in the app itself - there are effectively two sets of template code do the same thing with the same name. I have done some checking on the net, and have not yet seen how to avoid this problem, but of course it's quite possible I have got hold of completely the wrong end of the stick! I think I may be in the right track with -frepo and -fno-implicit-templates compiler flags, but I am not sure. Any help gratefully received. James This message (including any attachments) contains confidential and/or proprietary information intended only for the addressee. Any unauthorized disclosure, copying, distribution or reliance on the contents of this information is strictly prohibited and may constitute a violation of law. If you are not the intended recipient, please notify the sender immediately by responding to this e-mail, and delete the message from your system. If you have any questions about this e-mail please notify the sender immediately.