There is at least one place where we read TARGET_MAC_OS_X_VERSION_MAJOR on all platforms; this introduces an unexpected dependency on the macOS SDK.
<rdar://problem/118356369>
Pull request: https://github.com/WebKit/WebKit/pull/20511
Committed 272438@main (6a632b1cec5c): <https://commits.webkit.org/272438@main> Reviewed commits have been landed. Closing PR #20511 and removing active labels.