Pieter Noordhuis

NNPACK uses a CMake generator expression for its include dirs (`$`) and this apparently doesn't expand into the real list (which contains > 1 directory) when the `-I` arguments are...

This was addressed in Kitware/CMake@7ded655f7ba82ea72a82d0555449f2df5ef38594 was first included in CMake 3.7.

Can you post the CMake summary for completeness? The sigbus happens in the Python exit routine...

@bwasti Do you know this?

Please provide information about your build environment, such as OS, OS version, compiler version, etc.

Thanks. Caffe2 needs GCC 4.9 or higher to compile. Which version of Ubuntu are you using?

We don't test this configuration yet, but should be fixed. @slayton58 Have you seen this before?

@feldim2425 Let me try and build a 17.10 container to see if I can repro the issue.

Taking a look. Probably the caffe2 and gloo cmake files use them in a slightly different way...

Can you post your CMake summary output? This will include whether you compiled with CUDA or not.