[Webkit-unassigned] [Bug 185194] New: [GTK] Error building WebKitGtk+ with gcc version 7.3.0

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=185194

            Bug ID: 185194
           Summary: [GTK] Error building WebKitGtk+ with gcc version 7.3.0
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: magomez at igalia.com
                CC: bugs-noreply at webkitgtk.org

Created attachment 339297

  --> https://bugs.webkit.org/attachment.cgi?id=339297&action=review

Build log.

WebKitGtk+ is not building on current ToT (r231227). It fails because we are using optional RefPtr attributes with classes that are forward-defined. I think it's related to https://trac.webkit.org/changeset/231223, that causes the compiler to use std::optional instead of the WTF implmentation. Maybe with std::optional we need to have the complete class definition?

Attaching the build log.

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