(OSX/Darwin) Install fails on Apple M1 (arm64) architecture

[iannesbitt]

The rsudp installer still thinks Macs use Intel chips. Newer ones have adopted and updated the ARM architecture, I think due to power consumption improvements. Here are some things that currently fail:

• installer downloads x86_64 by default, needs to download arm64 for M1 machines
• pip wheel build fails (matplotlib<3.2, also possibly obspy)
  • this is actually kind of a significant problem since I think the reason we pinned the version at 3.1.3 and below is because some critical feature for display updating disappears in 3.2. I think that means stuff in c_plot.py needs to be rewritten to avoid depreciation errors. I need to test to confirm this. If we bump the version, I think I will need to find a workaround for those features disappearing. I remember being disappointed at the options when I discovered this issue but we'll see.

[CesarSP99]

I can confirm this issue too as it seems that there is no version available for ARM based chipsets. Here I have the relevant output of the installer script:

Collecting package metadata (repodata.json): done
Solving environment: failed

PackagesNotFoundError: The following packages are not available from current channels:

  - numpy=1.16.4

Current channels:

  - https://conda.anaconda.org/conda-forge/osx-arm64
  - https://conda.anaconda.org/conda-forge/noarch
  - https://repo.anaconda.com/pkgs/main/osx-arm64
  - https://repo.anaconda.com/pkgs/main/noarch
  - https://repo.anaconda.com/pkgs/r/osx-arm64
  - https://repo.anaconda.com/pkgs/r/noarch

To search for alternate channels that may provide the conda package you're
looking for, navigate to

    https://anaconda.org

and use the search bar at the top of the page.

ERROR: rsudp failed to install.
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