Re: [Boost-users] vc 7.1 bug: multiple definitions of symbol with Boost.Test

Sorry, I forgot to mention you have to enable precompiler headers to reproduce the problem. Project Settings -> C/C++ -> Precompiled Headers -> Automatically Generate. ====================

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I had the same problem with vc 7.1.

Strange. I never had problems like this with vc7.1

It's very easy to reproduce the problem. Create project with two source files (e.g. a.cpp and b.cpp) both with the same content: -- begin #include -- end When you try to compile you get two errors: b.obj : error LNK2005: "struct check_is_small_t::boost::check_is_small_t boost::test_tools::`anonymous namespace'::check_is_small" (?check_is_small@?A0xa003c394@test_tools@boost@@3Ucheck_is_small_t@23@A) already defined in a.obj b.obj : error LNK2005: "struct check_is_close_t::boost::check_is_close_t boost::test_tools::`anonymous namespace'::check_is_close" (?check_is_close@?A0xa003c394@test_tools@boost@@3Ucheck_is_close_t@23@A) already defined in a.obj boost version 1.33.1.

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If you add 'static' to all variables definitions in anonymous namespaces it works fine.

But anonimous namespace should do the trick itself!

Agree. Seems like compiler bug to me. Roman.