alvr doesn't build on arm64

[rlippmann]

Description

Build fails trying to link to openvr. it appears to be looking for the x86_64 version of openvr to link against.
Also, I'm not sure if there is a way to use system libraries to compile/link against instead of packaged sources. Particularly for x264 and ffmpeg. Linking against the system openvr lib would fix this problem.

General Troubleshooting

• I carefully followed the instructions in the README and successfully completed the setup wizard
• I read the ALVR GitHub Wiki

Environment

Hardware

Note: for Linux, an upload to the hw-probe database is preferred: hw-probe -all -upload

CPU:

GPU:

GPU Driver Version:

Audio:

Installation

ALVR Version:
git and 20.12.1
ALVR Settings File:

SteamVR Version:

Install Type:

• Packaged (exe, deb, rpm, etc)
• Portable (zip)
• Source

OS Name and Version (winver on Windows or grep PRETTY_NAME /etc/os-release on most Linux distributions):
Fedora Linux Asahi Remix 41 (KDE Plasma)

[rlippmann]

Ok, I installed the openvr dev libraries on my system and it seemed to build.

Not sure how since looking at the build.rst it seems to hardcode the path....