[Webkit-unassigned] [Bug 201751] New: [WinCairo][Clang][ANGLE] global_state.cpp(39, 1): error: static_assert failed due to requirement 'std::is_trivially_constructible<std::atomic<std::mutex *>>::value' "global mutex is not trivially constructible"

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=201751

            Bug ID: 201751
           Summary: [WinCairo][Clang][ANGLE] global_state.cpp(39,1):
                    error: static_assert failed due to requirement
                    'std::is_trivially_constructible<std::atomic<std::mute
                    x *>>::value' "global mutex is not trivially
                    constructible"
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: ANGLE
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com
                CC: dino at apple.com

[WinCairo][Clang][ANGLE] global_state.cpp(39,1): error: static_assert failed due to requirement 'std::is_trivially_constructible<std::atomic<std::mutex *>>::value' "global mutex is not trivially constructible"

Since r249823, clang-cl can't compile WinCairo while MSVC can do.

> [1811/5064] Building CXX object Source\ThirdParty\ANGLE\CMakeFiles\GLESv2.dir\src\libGLESv2\global_state.cpp.obj
> FAILED: Source/ThirdParty/ANGLE/CMakeFiles/GLESv2.dir/src/libGLESv2/global_state.cpp.obj 
> C:\PROGRA~1\LLVM\bin\clang-cl.exe  /nologo -TP -DANGLE_ENABLE_D3D11 -DANGLE_ENABLE_D3D9 -DANGLE_ENABLE_ESSL -DANGLE_ENABLE_HLSL -DBUILDING_WITH_CMAKE=1 -DGLESv2_EXPORTS -DGL_API="" -DGL_APICALL="" -DHAVE_CONFIG_H=1 -DLIBGLESV2_IMPLEMENTATION -DNOMINMAX -DUNICODE -DWTF_PLATFORM_WIN_CAIRO=1 -D_CRT_SECURE_NO_WARNINGS -D_HAS_EXCEPTIONS=0 -D_UNICODE -D_WINDOWS -D_WINSOCKAPI_="" -I..\..\WebKitLibraries\win\include -I..\..\Source\ThirdParty\ANGLE\include -I..\..\Source\ThirdParty\ANGLE\include\KHR -I..\..\Source\ThirdParty\ANGLE\src -I..\..\Source\ThirdParty\ANGLE\src\common\third_party\base -ISource\ThirdParty\ANGLE\include /W4 -fdiagnostics-color=always -fcolor-diagnostics -Wno-parentheses-equality -Wno-noexcept-type -Qunused-arguments -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-unknown-argument -Wno-nonportable-include-path -Wno-unknown-pragmas -Wno-macro-redefined -Wno-undef /DWIN32 /D_WINDOWS  /GR- /EHsc- -fno-strict-aliasing /MD /O2 /Ob2 /DNDEBUG   /wd4018 /wd4068 /wd4099 /wd4100 /wd4127 /wd4138 /wd4146 /wd4180 /wd4189 /wd4201 /wd4206 /wd4244 /wd4251 /wd4267 /wd4275 /wd4288 /wd4291 /wd4305 /wd4309 /wd4344 /wd4355 /wd4389 /wd4396 /wd4456 /wd4457 /wd4458 /wd4459 /wd4481 /wd4503 /wd4505 /wd4510 /wd4512 /wd4530 /wd4610 /wd4611 /wd4646 /wd4702 /wd4706 /wd4722 /wd4800 /wd4819 /wd4951 /wd4952 /wd4996 /wd6011 /wd6031 /wd6211 /wd6246 /wd6255 /wd6387 /Zi /GS /EHa- /EHc- /EHs- /fp:except- /analyze- /bigobj /utf-8 /validate-charset /Oy- -fmsc-version=1911 -std:c++17 /showIncludes /FoSource\ThirdParty\ANGLE\CMakeFiles\GLESv2.dir\src\libGLESv2\global_state.cpp.obj /FdSource\ThirdParty\ANGLE\CMakeFiles\GLESv2.dir\ -c ..\..\Source\ThirdParty\ANGLE\src\libGLESv2\global_state.cpp
> ..\..\Source\ThirdParty\ANGLE\src\libGLESv2\global_state.cpp(39,1): error: static_assert failed due to requirement 'std::is_trivially_constructible<std::atomic<std::mutex *>>::value' "global mutex is not trivially constructible"
> static_assert(std::is_trivially_constructible<decltype(g_Mutex)>::value,
> ^             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 1 error generated.

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