There is a typo in 259818@main causing the build to fail on s390x and ppc64le when cloop is enabled. Architecture support is not supposed to be required for cloop builds.
Pull request: https://github.com/WebKit/WebKit/pull/10059
Committed 260231@main (cf524f2799c8): <https://commits.webkit.org/260231@main> Reviewed commits have been landed. Closing PR #10059 and removing active labels.
<rdar://problem/105422998>