isMediaElement is no compiled if no VIDEO support.
Hi, when reporting compilation failures please include the full error message to show what is wrong, since otherwise nobody is going to be able to fix it. Also, consider submitting a pull request on GitHub because it's very unlikely that anybody else will fix this for you.
I've created this bug report because it's mandatory for pull requests. I've just forgot to mention the pull request here. https://github.com/WebKit/WebKit/pull/18218
Committed 266719.68@bugfix/StyleAdjuster-2.42.0 (5373496b9862): <https://commits.webkit.org/266719.68@bugfix/StyleAdjuster-2.42.0> Reviewed commits have been landed. Closing PR #18216 and removing active labels.
Committed 268474@main (2c2789a91bac): <https://commits.webkit.org/268474@main> Reviewed commits have been landed. Closing PR #18218 and removing active labels.