Your system information

• Steam client version: Jun 16 2017
• Distribution: Ubuntu 16.04
• Graphics driver version: 381.22
• Gist for SteamVR System Information: System Report
• Opted into Steam client beta?:Yes
• Opted into SteamVR beta?: Yes
• Have you checked for system updates?: Yes

Please describe your issue in as much detail as possible:

When I try to run Unreal Engine with steamVR runtime, and I import OpenCV with Python in there, I get import error:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: /usr/lib/x86_64-linux-gnu/libhogweed.so.4: undefined symbol: __gmpn_cnd_sub_n

I dont get this error if I am not using steam runtime.

Steps for reproducing this issue:

The simplest way to reproduce this error without Unreal Engine is

1. run python with steamVR runtime:

$ .steam/steam/ubuntu12_32/steam-runtime/run.sh python

1. And then try to import cv2 (OpenCV library)

import cv2