Thanks for the PR. However, it did introduce a breakage in certain builds due to unconditionally adding a check for libnetwork. For example, on older releases of macOS there is no libnetwork but building on newer systems it creates a dynamic load reference to a spurious and unrelated libnetworking library which causes multi-version binaries built on newer releases, like those of the python.org macOS installers, to fail to load on older systems. PR 28729 adds a Haiku-only guard around the added configure check.