not needed.

cmake/modules/AddBGQL1PrefetchFlags.cmake

-# Module providing convenience functions for using 
-#
-# Provides the following functions:
-#
-# add_dune_bgq_l1prefetch_flags(target1 target2 ...)
-#
-# Adds the necessary flags to compile and link the targets with BGQ_L1PREFETCH support.
-#
-function(add_dune_bgq_l1prefetch_flags _targets)
-  if(BGQ_L1PREFETCH_FOUND)
-    foreach(_target ${_targets})
-      target_link_libraries(${_target} ${BGQ_L1PREFETCH_LIBRARIES})
-    endforeach(_target ${_targets})
-    set_property(TARGET ${_targets}
-      APPEND_STRING
-      PROPERTY COMPILE_FLAGS ENABLE_BGQ_L1PREFETCH=1 )
-    set_property(TARGET ${_targets} APPEND PROPERTY
-      INCLUDE_DIRECTORIES "${BGQ_L1PREFETCH_INCLUDE_DIRS}")
-  endif(BGQ_L1PREFETCH_FOUND)
-endfunction(add_dune_bdq_l1prefetch_flags _targets)