Precompiled gem for Ruby 3.2

[jbourassa]

wasmtime-rb v0.4.1 works on Ruby 3.2, but requires compiling from source. The latest release aimed to solve that, but it didn't work: the .gem does not have a precompiled bundle for 3.2. After investigating, we are indeed including 3.2 in the list of rubies to precompile for (ruby-versions: 2.7, 3.0, 3.1, 3.2). I think the culprit is rake-compiler-dock (RCD) not yet supporting Ruby 3.2.

We should be able to specify a Docker image in a ENV var, similar to what Mike did for SQLite and Nokogiri. That, or wait until the next RCD release.

[jbourassa]

We should be able to specify a Docker image in a ENV var

That won't work: rb-sys uses RCD's images to build its own images, and then injects those as RCD_IMAGE.

Also, we'd have to change the extconf to do add append_ldflags("-Wl,-flat_namespace").

Might as well wait for this to be fixed in rake-compiler-dock, wait for a new release, and then bump everything.

[ianks]

Ruby 3.2 images are up now. Do they work?

[jbourassa]

Yes it works, I just need to cut a release now. I'm planning on release v5.0.0 with when Wasmtime 5.0 hits which should be around the 20th.

[jbourassa]

Fixed as of v5.0.0!