将C ++项目升级到VS2015，但链接器仍在寻找VC100 Boost库

Question

I have upgraded my C++ project from VS2008 to VS2015.
The Platform Toolset is set to Visual Studio 2015 (v140) . If it matters, the Target Platform Version is set to 8.1 .

I built boost using toolset=msvc-14.0 and put the built libraries into the place my project is expecting them.

When I build my project, I get a linker error:

LNK1104 cannot open file 'libboost_thread-vc100-mt-1_43.lib'

Why is it looking for the vc100 library and not the vc140 one?

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1. It's the first project out of 2 that is failing.
2. In the .vcproj file there is no reference that I can see to vc100 .

Answer 1

Linking to boost libraries on Windows is done automatically through auto linking and #pragma directives. The version number it looks to link against is defined in boost\\config\\auto_link.hpp where it goes through a bunch of #if and #elif s on your MSVC version and if the version is higher than any of the ones it knows about then it just sets the version number to the highest one it knows about. For boost 1.57 that is vc140, for your version of boost that is presumably vc100.