+#else
+// Notice that if the manifest is included, WX_CPU_XXX constant corresponding
+// to the architecture we're compiling for must be defined. This can be done
+// either manually in your make/project file or by configuring the resource
+// compiler paths to search in $(WXWIN)/lib/$(COMPILER_PREFIX)_lib/mswu[d]
+// directory for its include files, as wx/msw/rcdefs.h file in this directory
+// is generated during wxWidgets build and contains the correct definition.
+#error "One of WX_CPU_XXX constants must be defined. See comment above."