Re: [Boost-users] cross-compilation x86_64-w64-ming32: undefined reference to `InterlockedIncrement'

Subject: Re: [Boost-users] cross-compilation x86_64-w64-ming32: undefined reference to `InterlockedIncrement'
From: Vicente J. Botet Escriba (vicente.botet_at_[hidden])
Date: 2013-09-07 08:48:45

Le 07/09/13 12:33, Frédéric Bron a écrit :
>>> 1. in both cases, the following variables are undefined:
>>> WIN32 __CYGWIN__ MINGW64 _M_IA64 BOOST_MSVC BOOST_INTEL_WIN _WIN32_WCE
>>> _MSC_VER
>>>
>>> 2. in both cases, the following variables are defined with value 1:
>>> _WIN32 __WIN32
>>>
>>> 3. variable _M_AMD64 is undefined with i686-w64-mingw32-g++ and
>>> defined with value 100 with x86_64-w64-mingw32-g++.
>>>
>>> Does this help? In particular, is it normal that _WIN32 and __WIN32
>>> are defined when targetting win64? Is it normal that MINGW64 is always
>>> undefined although I use a W64 compiler?
>>>
>> I suspect you mean __MINGW64__.
>>
>> If not. Could you check if __MINGW64__ is defined?
> sorry, you're right __MINGW64__ is used in the code and it is
> undefined with i686-w64-mingw32-g++ and defined and equal to 1 with
> x86_64-w64-mingw32-g++.
>
I have no idea why this was added 
(https://svn.boost.org/trac/boost/changeset/70383).

Could you try commenting so that

#define BOOST_INTERLOCKED_IMPORT __declspec(dllimport)

?

Could some one clarify why this was needed?

Best,
Vicente