Paul Mucur

(Cross-posted from #51.) Just a warning that https://github.com/korukids/heroku-geo-buildpack is no longer supported and will not be updated as we've switched to using [`heroku-buildpack-apt`](https://elements.heroku.com/buildpacks/heroku/heroku-buildpack-apt) to install `libgeos-dev` and `libproj-dev` instead.

Just a warning that https://github.com/korukids/heroku-geo-buildpack is no longer supported and will not be updated as we've switched to using [`heroku-buildpack-apt`](https://elements.heroku.com/buildpacks/heroku/heroku-buildpack-apt) to install `libgeos-dev` and `libproj-dev` instead.

@eregon I've now [updated the job to run the test suite against `truffleruby-21.0.0` and `truffleruby-head` on both Ubuntu 18.04 and Ubuntu 20.04](https://github.com/mudge/re2/actions/runs/586401991). All combinations still fail but the error messages...

I've also [added macOS 10.15 to the build](https://github.com/mudge/re2/actions/runs/586421875) so you can see it passes for both `truffleruby-head` and `truffleruby-21.0.0`.

For consistency, I've [updated the build](https://github.com/mudge/re2/actions/runs/586549147) to test against the same version of the underlying re2 library as the successful macOS job, [compiled in the same way as the Homebrew...

I’m not sure if it is relevant but there’s discussion of re2 using a [“clever trick” with uninitialized memory](https://research.swtch.com/sparse) (via https://stackoverflow.com/questions/47653565/undefined-behaviour-in-re2-which-stated-to-be-well-defined), specifically in https://github.com/google/re2/blob/master/re2/sparse_array.h and https://github.com/google/re2/blob/master/re2/sparse_set.h

Yes: if we allowed users to access (and even provide) the HTTP client itself, then they could configure it however they wish (e.g. proxy settings).

As commented in https://github.com/raspberrypi/pico-sdk/pull/1564#issuecomment-1932279064, I'm seeing incorrectly extracted brief descriptions in newer versions of Doxygen (e.g. 1.10.0) even when we're using the explicit `\brief` command if it isn't separated from...

In the short term, maybe it's worth defining what version of Doxygen _is_ supported and we advise using that. I believe the latest version that behaves the way we expect...

Interesting; I've not looked into this part of re2 previously. Do you have a rough idea of how you'd like the API to look or do you just want it...