g_spawn_check_wait_status(), used in 264196@main, is not available until GLib 2.70. We should use g_spawn_check_exit_status() instead, which does the same thing but with a worse name.
Pull request: https://github.com/WebKit/WebKit/pull/14498
Committed 264694@main (3f0a21271a6f): <https://commits.webkit.org/264694@main> Reviewed commits have been landed. Closing PR #14498 and removing active labels.