Fix show headers in qtc6

autotests/CMakeLists.txt

@@ -8,7 +8,7 @@ add_definitions( -DKDEBUGSETTINGS_BINARY_DATA_DIR="${CMAKE_CURRENT_BINARY_DIR}/d
 macro(add_unittest _source)
     set(_test ${_source})
     get_filename_component(_name ${_source} NAME_WE)
-    add_executable( ${_name} ${_test} )
+    add_executable( ${_name} ${_test} ${_name}.h)
     add_test(NAME ${_name} COMMAND ${_name} )
     ecm_mark_as_test(kdebugsettings-${_name})
     target_link_libraries( ${_name}