meson/docs/markdown/snippets/custom_target_console_pool.md

New kwarg console for custom_target()

This keyword argument conflicts with capture, and is meant for commands that are resource-intensive and take a long time to finish. With the Ninja backend, setting this will add this target to Ninja's console pool, which has special properties such as not buffering stdout and serializing all targets in this pool.

The primary use-case for this is to be able to run external package managers such as cargo to produce build artifacts. Without setting this, the user does not receive any feedback about what the package manager is doing, which can take a very long time to download and build packages.