Proposal: Make Linux Builds Portable

[jkmassel]

A proposal for portable Linux builds – right now it's not possible to simply download the release binary from a tag and run it on Linux without the swift standard library.

I suspect it might be preferable to produce two build artifacts – one smaller dynamically-linked version, and this larger statically-linked version.

Portability only goes so far – a quick test shows that it works on these (dockerized) distros (as tested by running xclogparser version):

• debian:latest
• ubuntu:latest
• archlinux:latest

But does not work on:

• amazonlinux:latest (uses glibc 2.26, not 2.27)
• alpine:latest (missing all of glibc)

Happy to hear y'alls thoughts on this!

Note: I needed to modify the Dockerfile to make build_release_in_docker.sh work – otherwise SPM would fail.

[PatrikBillgren]

Thanks for submitting the PR! Supporting this use case sounds good to me. Do you have possibility to extend the PR with the functionality you described for creating two artifacts?