Bundled libuv doesn't install when there is no system libuv even with cmake present

[thisisnic]

I'm just in the process of doing an Arrow release, and when testing on our CI, noticed that some of our jobs are failing when we install fs, as no system libuv is detected. These CI jobs do have cmake installed though, so should be able to install the bundled version.

I saw the recent update to use system libuv when it's available, so it's an easy enough workaround to update our CI to have it installed or set the relevant env var to install the bundled one, but thought I should open an issue here in case this isn't expected behaviour - wasn't sure!

• Alpine - https://github.com/ursacomputing/crossbow/actions/runs/23490123331/job/68355817332#step:6:3823
• Fedora - https://github.com/ursacomputing/crossbow/actions/runs/23490125485/job/68355824999#step:6:33589

I double checked the jobs, and they're trying to install version 2.0.1

[jeroen]

Thanks, it is expected. We prefer to use the system version of libuv; which will automatically be installed if you are using r-lib/actions or pak or p3m, see https://github.com/rstudio/r-system-requirements/blob/main/rules/libuv.json

If you run your own CI tools I guess you need to manually add libuv-dev?

it's an easy enough workaround to update our CI to have it installed or set the relevant env var to install the bundled one, but thought I should open an issue here in case this isn't expected behaviour

Indeed, using the vendored libuv is now opt-in via the USE_BUNDLED_LIBUV variable. We do not do it automatically because we really want to encourage you to use your system version :)

[thisisnic]

Awesome, will close this then, just wanted to make sure it was expected behaviour :)