diff --git a/cmake/QtAutoDetectHelpers.cmake b/cmake/QtAutoDetectHelpers.cmake
index 2b8152ec75f..964edafecff 100644
--- a/cmake/QtAutoDetectHelpers.cmake
+++ b/cmake/QtAutoDetectHelpers.cmake
@@ -179,6 +179,11 @@ endfunction()
 
 function(qt_auto_detect_apple)
     if(NOT APPLE)
+        if(CMAKE_OSX_ARCHITECTURES AND NOT QT_NO_SHOW_NON_APPLE_CMAKE_OSX_ARCHITECTURES_WARNING)
+            message(WARNING
+                "CMAKE_OSX_ARCHITECTURES is set while targeting a non-Apple platform. This can "
+                "lead to build failures. Consider reconfiguring with the variable unset.")
+        endif()
         return()
     endif()