CMake: do not use target webview in monolithic build

build/cmake/lib/webview/CMakeLists.txt

@@ -69,9 +69,12 @@ elseif(WXMSW)
         wx_lib_include_directories(wxwebview PRIVATE "${WEBVIEW2_PACKAGE_DIR}/build/native/include")
         if(NOT MSVC)
             wx_lib_include_directories(wxwebview PRIVATE "${wxSOURCE_DIR}/include/wx/msw/wrl")
+            if (NOT wxBUILD_MONOLITHIC)
                 target_compile_options(wxwebview PRIVATE -Wno-unknown-pragmas)
             endif()
+        endif()
 
+        if (NOT wxBUILD_MONOLITHIC)
             if (CMAKE_SIZEOF_VOID_P EQUAL 4)
                 set(WEBVIEW2_ARCH x86)
             else()
@@ -83,6 +86,7 @@ elseif(WXMSW)
                 "${WEBVIEW2_PACKAGE_DIR}/build/native/${WEBVIEW2_ARCH}/WebView2Loader.dll"
                 "$<TARGET_FILE_DIR:wxwebview>/WebView2Loader.dll")
         endif()
+    endif()
 elseif(WXGTK)
     if(LIBSOUP_FOUND)
         wx_lib_include_directories(wxwebview PUBLIC ${LIBSOUP_INCLUDE_DIRS})