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LNK2001 error after upgrade to VS2008 and XP64 from VS2005 and XP32

Posted on 2008-10-24
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Last Modified: 2013-11-26
I have a Win32 DLL project which builds perfectly on my VS2005(pro) machine running XP32(pro). On a newer machine with VS2008(standard)  running XP64 the same code fails to link with the following errors:

asl.lib(AAFAlgorithm2.obj) : error LNK2001: unresolved external symbol "unsigned int (__stdcall* ATL::g_pfnGetThreadACP)(void)" (?g_pfnGetThreadACP@ATL@@3P6GIXZA)
...
asl.lib(AAFInfo.obj) : error LNK2001: unresolved external symbol "unsigned int (__stdcall* ATL::g_pfnGetThreadACP)(void)" (?g_pfnGetThreadACP@ATL@@3P6GIXZA)

where asl.lib is a third-party 32bit library.
I can register the successfully built DLL on the newer machine and it works fine, but I can't seem to build it on the newer machine. I don't know if this is a XP32-XP64 issue, or a VS05-VS08 issue. I've read a lot of advice from the internet about these LNK2001 errors, but nothing has worked yet. I'm open to all suggestions no matter how obvious they may seem.

Thanks
Compiler command line:
/Od /I "..\..\Inc" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "WINVER=0x0501" /D "_CRT_SECURE_NO_DEPRECATE" /D "_VC80_UPGRADE=0x0600" /D "_WINDLL" /D "_MBCS" /Gm /EHsc /RTC1 /MTd /Yu"stdafx.h" /Fp".\Debug/AlgorithmDLL.pch" /Fo".\Debug/" /Fd".\Debug/" /W3 /nologo /c /ZI /errorReport:prompt
 
 
Link command line:
/OUT:"Debug/ColorFilter.dll" /INCREMENTAL /NOLOGO /LIBPATH:"..\..\lib\debug" /LIBPATH:"..\..\lib" /DLL /MANIFEST /MANIFESTFILE:".\Debug\ColorFilter.dll.intermediate.manifest" /MANIFESTUAC:"level='asInvoker' uiAccess='false'" /NODEFAULTLIB:"libc" /NODEFAULTLIB:"nafxcw" /NODEFAULTLIB:"msvcrt" /NODEFAULTLIB:"mfc42" /NODEFAULTLIB:"mfcs42" /NODEFAULTLIB:"libcmt" /NODEFAULTLIB:"libcd" /DEF:".\AlgorithmDLL.def" /DELAYLOAD:"OleAcc.dll" /DEBUG /PDB:".\Debug/ColorFilter.pdb" /SUBSYSTEM:WINDOWS /DYNAMICBASE:NO /IMPLIB:".\Debug/ColorFilter.lib" /MACHINE:X86 /ERRORREPORT:PROMPT libtiff.lib base.lib ail.lib winmm.lib wsock32.lib asl.lib lcmsd.lib DelayImp.lib

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Question by:Croow
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drichards earned 2000 total points
ID: 22806171
Unforunately, g_pfnGetThreadACP is removed from VS2008.  Since you say asl.lib is third party, you'll need to keep building with VS2005, get a newer version of the third party library that is built with VS2008, build a custom version of ATL, or modify the third party source code yourself if that is an option.

Look at the differences between the two version of atlconv.h at the
 "#if(n)def _CONVERSION_DONT_USE_THREAD_LOCALE"
to see the differences.  Logic was greatly simplified in VS2008 and g_pfnGetThreadACP was obsoleted.
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by:drichards
ID: 22806178
Since it looks like you are building the third party library, you could just change the call or replicate the old g_pfnGetThreadACP  function in a library of your own and add the new library to the link dependency list of the third party library.
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by:Croow
ID: 22806503
It's a big relief to confirm this isn't an XP64 issue.
I will keep working with VS05 until our vendor provides a new library.

Thanks
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