QtNetwork/Windows: Add exclusions for CMake Unity (Jumbo) builds

The "interface" define in windows.h causes clashes with
variables named "interface". It cannot be undef'ed
since the winsock headers also uses it.

Pick-to: 6.5
Task-number: QTBUG-109394
Change-Id: Id2daedfd6c57aae39a1fdfe92482f17884b68ef5
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>

src/network/CMakeLists.txt

@@ -379,6 +379,25 @@ qt_internal_extend_target(Network CONDITION QNX PUBLIC_LIBRARIES socket) # speci
 
 qt_internal_extend_target(Network CONDITION SOLARIS PUBLIC_LIBRARIES socket nsl) # special case
 
+if (WIN32)
+    set_source_files_properties(Network # include windows.h (causing clashes with "interface" define)
+                                kernel/qauthenticator.cpp
+                                kernel/qdnslookup_win.cpp
+                                kernel/qhostaddress.cpp
+                                kernel/qhostinfo.cpp
+                                kernel/qhostinfo_win.cpp
+                                kernel/qnetconmonitor_win.cpp
+                                kernel/qnetworkinterface_win.cpp
+                                kernel/qnetworkproxy_win.cpp
+                                socket/qabstractsocket.cpp
+                                socket/qlocalserver.cpp
+                                socket/qlocalserver_win.cpp
+                                socket/qlocalsocket_win.cpp
+                                socket/qnativesocketengine.cpp
+                                socket/qnativesocketengine_win.cpp
+                                PROPERTIES SKIP_UNITY_BUILD_INCLUSION ON)
+endif()
+
 # include the snippet projects for developer-builds
 if(QT_FEATURE_private_tests)
     add_subdirectory(doc/snippets/network)