Jeff Flinn on Tuesday, June 03, 2008 10:22 PM:
Any idea how this differs from what's in the vault? Can it be back ported to 1.34.1 and/or 1.35.0? I've just posted a problem I'm having on MAC on the devel list.
Hi Jeff, I looked into the developer list (which I am not subscribed to) and found your posting:
Using the latest portable_binary_archive from the vault with boost 1.34.1 on Mac XCode 3 I'm getting a linker duplicate symbol error:
ld: duplicate symbol
boost::archive::basic_binary_oarchive
::save_override(boost::archive::class_id_optional_type const&, int) in .../Persistence.build/Debug/CxxTest.build/Objects-normal/ppc/AAA.o
and .../Persistence.build/Debug/CxxTest.build/Objects-normal/ppc/BBB.o
Any help in resolving this issue would be appreciated. This succesfully compiles/links and runs when built on MSVC 8.
It might be that the mac compiler is a bit more strict on multiple
template instatiations or else. I suspect line 203 to cause your error,
so you could try to move the (entire) instatiation part into a separate
file if you include portable_binary_oarchive.hpp multiple times. Also be
sure that your compiler understands #pragma once or change to the
traditional #ifndef guard.
// explicitly instantiate for this type of binary stream
template class basic_binary_oarchive