serialization/throw_exception.hpp uses BOOST_NO_EXCEPTIONS in the wrong way

[apaku@…]

Using boost multi_index in a project that doesn't supply -fexceptions (or rather that supplies -fno-exceptions) to the compiler fails at linking time because there's an undefined reference to boost::throw_exception(std::exception). This appears to be caused by the #ifdef stuff in serialization/throw_exception.hpp, which uses std::exception if BOOST_NO_EXCEPTIONS is defined. However this define is set when exception support is turned off.

Hence instead of "#ifdef BOOST_NO_EXCEPTIONS" this should probably be "#ifndef BOOST_NO_EXCEPTIONS". Changing the header file accordingly makes the project I have here link properly.

First version that breaks is 1.37, in 1.36 the problem doesn't appear.

[Vladimir Prus]

The actual problem is that:

1. in BOOST_NO_EXCEPTIONS the boost::serialization::throw_exception functions lacks 'inline'
2. in BOOST_NO_EXCEPTIONS case <exception> is included -- and it should not.

[Vladimir Prus]

I have merged the fix to release branch. It will be available in 1.40.0. It might be available in 1.39.1, if we do it. Andreas, this fixes the duplicate boost::serialization::throw_exception. You still will have to define boost::throw exception with appropriate behaviour.