[CMake] Can't find boost libs on VS2017 CMake 3.12

[Michael Ellery]

did you build boost yourself or download a pre-built package? What subdirectory are the import libraries (.lib) located in? Do you set any boost-finder variables before calling find_package(Boost)? I have at times in the past had to set BOOST_LIBRARYDIR when the package I was using had an odd lib file location, but I don’t think that’s typically needed.


> On Aug 2, 2018, at 6:24 AM, Søren <sd at syntonetic.com> wrote:
> 
> Dear cmake community
> 
> I can't make CMake find the built boost libraries on Windows. At this line:
> 
>     find_package(Boost REQUIRED COMPONENTS thread)
> 
> I get this error message:
> "Unable to find the requested Boost libraries.
> 
>   Boost version: 1.67.0
> 
>   Boost include path: C:/download/boost/boost_1_67_0
> 
>   Could not find the following static Boost libraries:
> 
>           boost_thread
> 
>   Some (but not all) of the required Boost libraries were found. You may
>   need to install these additional Boost libraries.  Alternatively, set
>   BOOST_LIBRARYDIR to the directory containing Boost libraries or BOOST_ROOT
>   to the location of Boost."
> 
> Other facts and observations:
> * Error both observed with stand alone Cmake 3.12, and the version cmake 3.11 that ships with VS2017.
> * VS2017 version 15.7.5 (currently the latest)
> * The same error with older Boost versions 1.65.x or 1.66
> * Building and linking the same program using VS2017 without cmake works fine.
> * It's not only threat that has the problem. Tested also date_time and chrono with same errors.
> * Building a program with cmake that only requires boost headers-only-libs works fine.
> * Building the same project on linux works fine.
> 
> Any ideas?
> Thanks in advance
> Soren
> 
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