Author steve.dower
Recipients jkloth, paul.moore, steve.dower, tim.golden, vstinner, zach.ware
Date 2016-01-26.17:11:03
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Marked as misclassified Yes
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So the more interesting error message is higher up:

xxmodule.obj : warning LNK4197: export 'PyInit_xx' specified multiple times; using first specification
   Creating library d:\temp\tmptzty591d\Debug\temp\tmptzty591d\xx_d.cp36-win_amd64.lib and object d:\temp\tmptzty591d\Debug\temp\tmptzty591d\xx_d.cp36-win_amd64.exp
LINK : /LTCG specified but no code generation required; remove /LTCG from the link command line to improve linker performance
LINK : fatal error LNK1101: incorrect MSPDB140.DLL version; recheck installation of this product

It's entirely possible that this was an issue with VS 2015 that has been resolved in VS 2015 Update 1. Let me check with some people who may know.

In the meantime, it would be handy if the owners could confirm that the buildbots are running VS 2015 and not Update 1 (released in November, so if you haven't installed anything that recently then it's unrelated). Also the full version numbers of the following files:

C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\mspdb140.dll
C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\link.exe
C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\x86_arm\link.exe
Date User Action Args
2016-01-26 17:11:03steve.dowersetrecipients: + steve.dower, paul.moore, vstinner, tim.golden, jkloth, zach.ware
2016-01-26 17:11:03steve.dowersetmessageid: <>
2016-01-26 17:11:03steve.dowerlinkissue26207 messages
2016-01-26 17:11:03steve.dowercreate