Build on windows msvc 2015 fails on Eigen including pthread.h

[friente]

I'm trying to build shogun 6.1.3 on windows with msvc 2015 using cmake. Here is the log of the configuration generated by cmake:

https://gist.github.com/fyoda/fca418aa6be771b9c9da5b4193326945

When I build the solution generated for MSVC 2015 I have problems with eigen3. The Eigen3 has downloaded automatically but then it fails to build. Here there is a portion of the MSVC log:

https://gist.github.com/fyoda/f59cdefb4d8e62b2ce3bfcb4ac8c5fd4

By looking at the CMakeError.log the error seems related to Eigen that tries to include pthread.h

https://gist.github.com/fyoda/9c1ac9b2fdc418f9aff6910e2078ff85

I don't understand why Eigen tries to include pthread.h on windows.

[karlnapf]

Thanks for reporting.
The windows build is quite experimental.
There definitely is a problem with eigen not being able to detect your blas setup (second gist)

[vigsterkr]

@karlnapf :D

@fyoda i cannot open any of the linked gists... but as you can see on appveyor MSVC 2015 + shogun with bundled eigen just works fine... so unless you can give me some logs i'll close this bug as this seems to be your error

[karlnapf]

@vigsterkr if you copy paste the gists, they work

https://gist.github.com/fyoda/fca418aa6be771b9c9da5b4193326945
https://gist.github.com/fyoda/f59cdefb4d8e62b2ce3bfcb4ac8c5fd4
https://gist.github.com/fyoda/9c1ac9b2fdc418f9aff6910e2078ff85

[friente]

The error doesn’t appear if use the x64 build

[vigsterkr]

@fyoda i'm closing this one as this is really some local setup problem.... in case you think that it's not then plz post the full cmake output not just a part of it.

[friente]

The error appears when I generated the msvc solution for x86. I doesn’t appear when generation for Win64. Later I will report the cmake log

[vigsterkr]

@fyoda oh! x86 build was never tested... hence it was never intended to work. buuuuuut even in that case this seems to be an eigen related problem actually, not shogun

[vigsterkr]

@fyoda if you jump in gitter or irc we could get your problems fixed quicker :)