OpenBSD supports waitid now. Let's add support for it.
@ibara created dlang/dmd pull request #14612 "Fix Issue 23456 - OpenBSD: Add waitid support" fixing this issue: - Fix Issue 23456 - OpenBSD: Add waitid support https://github.com/dlang/dmd/pull/14612
dlang/dmd pull request #14612 "Fix Issue 23456 - OpenBSD: Add waitid support" was merged into stable: - 2b80f53302b1f72506d1daab4061c9950464ecda by Brian Callahan: Fix Issue 23456 - OpenBSD: Add waitid support https://github.com/dlang/dmd/pull/14612
dlang/dmd pull request #14643 "merge stable" was merged into master: - 0c862722803437de393c9911ff0bb32f2c120998 by Brian Callahan: Fix Issue 23456 - OpenBSD: Add waitid support (#14612) https://github.com/dlang/dmd/pull/14643