[Webkit-unassigned] [Bug 188635] New: [Win] void (WTF::__visitor_table<WTF::Visitor<<lambda>>, WTF::TextBreakIteratorICU, WTF::NullTextBreakIterator>::__trampoline)()" already defined

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=188635

            Bug ID: 188635
           Summary: [Win] void
                    (WTF::__visitor_table<WTF::Visitor<<lambda>>,WTF::Text
                    BreakIteratorICU,WTF::NullTextBreakIterator>::__trampo
                    line)()" already defined
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Template Framework
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com

I upgraded VS today. It can't build ToT WebKit.

  Microsoft Visual Studio Professional 2017 
  Version 15.8.0
  VisualStudio.15.Release/15.8.0+28010.0
  Microsoft .NET Framework
  Version 4.7.02556

> 2>------ Build started: Project: WTF (WTF\WTF), Configuration: Debug x64 ------
> 2>TextBreakIterator.obj : error LNK2005: "public: static void (__cdecl*const * const WTF::__visitor_table<struct WTF::Visitor<class <lambda_4688178ac87a3efd1e417c3ce7f3aa28> >,class WTF::TextBreakIteratorICU,class WTF::NullTextBreakIterator>::__trampoline)(struct WTF::Visitor<class <lambda_4688178ac87a3efd1e417c3ce7f3aa28> > &,class WTF::Variant<class WTF::TextBreakIteratorICU,class WTF::NullTextBreakIterator> &)" (?__trampoline@?$__visitor_table at U?$Visitor at V<lambda_4688178ac87a3efd1e417c3ce7f3aa28>@@$$V at WTF@@VTextBreakIteratorICU at 2@VNullTextBreakIterator at 2@@WTF@@2QBQ6AXAEAU?$Visitor at V<lambda_4688178ac87a3efd1e417c3ce7f3aa28>@@$$V at 2@AEAV?$Variant at VTextBreakIteratorICU@WTF@@VNullTextBreakIterator at 2@@2@@ZB) already defined in StringView.obj
> 2>   Creating library C:/webkit/wa/WebKitBuild/Debug/lib64/WTF.lib and object C:/webkit/wa/WebKitBuild/Debug/lib64/WTF.exp
> 2>C:\webkit\wa\WebKitBuild\Debug\bin64\WTF.dll : fatal error LNK1169: one or more multiply defined symbols found
> 2>Done building project "WTF.vcxproj" -- FAILED.
> ========== Build: 1 succeeded, 1 failed, 1 up-to-date, 0 skipped ==========

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