scancode installed via pip command not working on Mac M1

[rohitcoder]

Description

Hi, I'm trying to run this on my Mac M1, i installed from this command pip install scancode-toolkit but i'm getting below error, when i run scancode command

How To Reproduce

1. pip install scancode-toolkit
2. scancode
3. You'll get error now

System configuration

For bug reports, it really helps us to know:

• What OS are you running on? MacOS
• What installation method was used to install/run scancode? pip

[pombredanne]

We have native C code and we need rosetta on M1 for now, though I would welcome help to compile and eventually port all of native deps to ARM.
For now, see for instance for the workarounds in https://github.com/nexB/scancode-toolkit/blob/d64acdded0b1f9e760cb9a5e47aecffab814b811/configure#L121 and f6064ea

TLDR; : either start a terminal in x86 mode or use arch -x86_64 to the same effect.
https://scancode-toolkit.readthedocs.io/en/stable/getting-started/install.html#system-requirements

Mac: on recent x86 64-bit macOS (10.15 and up, including 11 and 12), Use the X86 emulation mode on Apple ARM M1 CPUs.

[pombredanne]

We need to add more doc for this, but we cannot solve this short of having a free hosted CI for now. See also #3205 (comment)