Thanks all! OK, so ICU 54 is enough for ENABLE(INTL) and all of our supporting environment just has ICU 54. I'll open a bug for removing ENABLE(INTL) :) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.webkit.org/pipermail/webkit-dev/attachments/20180524/4669f1f0/attachment.html>