Cross-compiling a static binary from GitHub Actions

[kinke]

On Saturday, 25 September 2021 at 16:28:16 UTC, kinke wrote:
> plus I'd expect stuff like `-L-l:libtermcap.a` to work there as 
> well (i.e., static libs being available just like on an x64 
> image).

According to 
https://packages.ubuntu.com/bionic/arm64/libtinfo-dev/filelist, 
the static libs are probably generally available. So something 
like
```
dpkg --add-architecture arm64
apt-get update
apt-get install libtinfo-dev:arm64
```
might be sufficient to make them available for the 
gcc-aarch64-linux-gnu toolchain as well.