Re: [boost] auto-link with gcc/windows

Subject: Re: [boost] auto-link with gcc/windows
From: Robert Ramey (ramey_at_[hidden])
Date: 2010-07-06 12:36:34

John Maddock wrote:
>> With the last change I made in the serialization library, the only
>> missing symbols are void_upcast and void_downcast.  the *.cpp files
>> which defiine these functions to indeed define BOOST_SERIALIZATION_SOURCE
>> so these symbols should be exported.  I'm trying go figure out why
>> this is not happening. Including define BOOST_SERIALIZATION_SOURCE in
>> a different file can't be the solution - the fact that it seems to
>> work can only
>> be a hint as to what the problem is.  Still thanks for the insight.
>
> Which compiler/platform is this?  I just tried Trunk with
> Mingw-gcc-4.5.0 and everything that should pass did.

Hmmm - I'm looking at the test matrix for RW_Mingw45 and 1 MinGW-32 
jc-bell.com as well as
track item #4375 - these are all failing.

It looks to me that there are only a couple of undefined symbols because the 
serialization
autolink code is being enabled by BOOST_HAS_DECL which is now being used
to enable "visibility".   This is likely even more confused as I believe 
I've used this
or something like it to trick the compiler/linker into suppressing code 
stripping
of code not otherwise explicitly referred to.

I see now that this has been in the works for some time and is not something
new.  So it would seem that I can move my current trunk over to the release
branch and worry about this later.

Robert Ramey

>
> John.
>
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