[Webkit-unassigned] [Bug 219296] New: cannot build older version WebKit on macOS 11.0.1 with Xcode 12.2

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=219296

            Bug ID: 219296
           Summary: cannot build older version WebKit on macOS 11.0.1 with
                    Xcode 12.2
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Macintosh
                OS: Other
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: zhousstest at gmail.com

Created attachment 414884

  --> https://bugs.webkit.org/attachment.cgi?id=414884&action=review

error log

Hi all, 
    I try to build webkit-r249219 (safari 13, also known as 608.2.11) on new macOS 11.0.1 with Xcode 12.2., while it failed to build, some errors is attached in the attached photo. I can build the latest version webkit with same environment, but when I roll back to older version with "svn update -r 249219", open the xcode project to build, it always fails to build.

    Besides roll back to older version with "svn update -r 249219", do I need to do other steps to sync the dependency or to adjust the xcode project? The errors in my attached photo can be skipped over but will meet another new errors in later building. Or is this failure related to the complier version?

Thanks

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