MSVC Warnings

[ax3l]

master as of 80a0674 currently generates warnings on MSVC:

• in Debug mode: https://ci.appveyor.com/project/wjakob/pybind11/build/1.0.141/job/c0yeltp07919w9dv https://ci.appveyor.com/project/wjakob/pybind11/build/1.0.141/job/xfv0nem114pjq3fh

NK : warning LNK4075: ignoring '/INCREMENTAL' due to '/LTCG' specification [C:\projects\pybind11\example.vcxproj]

 Generating code
c:\program files (x86)\microsoft visual studio 14.0\vc\include\xatomic.h(1621): warning C4702: unreachable code [C:\projects\pybind11\example.vcxproj]
c:\program files (x86)\microsoft visual studio 14.0\vc\include\xatomic.h(1402): warning C4702: unreachable code [C:\projects\pybind11\example.vcxproj]
 Finished generating code

[ax3l]

cool, thanks!

[wjakob]

the xatomic warning remains, but that appeares to be a problem in MSVC itself.