C:\Qt\5.13.0\src\qtwebengine\src\3rdparty\chromium\third_party\icu\source\common\umutex.h(74): error C2027: using undefined type "std::atomic<int>"
C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Tools\MSVC\14.21.27702\include\atomic(1824): note: see the declaration of "std::atomic<int>"
C:\Qt\5.13.0\src\qtwebengine\src\3rdparty\chromium\third_party\icu\source\common\umutex.h(78): error C2027: using undefined type "std::atomic<int>"
C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Tools\MSVC\14.21.27702\include\atomic(1824): note: see the declaration of "std::atomic<int>"
C:\Qt\5.13.0\src\qtwebengine\src\3rdparty\chromium\third_party\icu\source\common\umutex.h(82): error C2027: using undefined type "std::atomic<int>"
C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Tools\MSVC\14.21.27702\include\atomic(1824): note: see the declaration of "std::atomic<int>"
C:\Qt\5.13.0\src\qtwebengine\src\3rdparty\chromium\third_party\icu\source\common\umutex.h(86): error C2027: using undefined type "std::atomic<int>"
C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Tools\MSVC\14.21.27702\include\atomic(1824): note: see the declaration of "std::atomic<int>"
C:\Qt\5.13.0\src\qtwebengine\src\3rdparty\chromium\third_party\icu\source\common\umutex.h(233): error C2079: "icu_63::UInitOnce::fState" uses incomplete type struct "std::atomic<int>"
C:\Qt\5.13.0\src\qtwebengine\src\3rdparty\chromium\third_party\icu\source\common\umutex.h(236): error C2664: "int32_t icu_63::umtx_loadAcquire(icu_63::u_atomic_int32_t &)": cannot convert argument 1 from "int" to "icu_63::u_atomic_int32_t &"
C:\Qt\5.13.0\src\qtwebengine\src\3rdparty\chromium\third_party\icu\source\common\umutex.h(261): error C2664: "int32_t icu_63::umtx_loadAcquire(icu_63::u_atomic_int32_t &)": cannot convert argument 1 from  "int" to "icu_63::u_atomic_int32_t &"
C:\Qt\5.13.0\src\qtwebengine\src\3rdparty\chromium\third_party\icu\source\common\umutex.h(276): error C2664: "int32_t icu_63::umtx_loadAcquire(icu_63::u_atomic_int32_t &)": cannot convert argument 1 from "int" to "icu_63::u_atomic_int32_t &"

configure ^
-platform win32-msvc ^
-prefix C:/Qt/5.13.0/64_OGL-Desktop_WebEngine ^
-opensource ^
-debug-and-release ^
-opengl desktop ^
-confirm-license ^
-nomake tests ^
-nomake examples ^

Win10 Pro ver 1809 build 17763.557 CPU i7-8700K
Visual Studio Enterprise 2019 - 16.1.4
MSVC      ver : 14.21
W10SDK  ver : 10.0.17763.0
MFC         ver : 142(x86 & x64)
ATL          ver :  142(x86 & x64)