I'm wondering if these commands from /usr/src/Makefile are correctly described: # check-old - List obsolete directories/files/libraries. # check-old-dirs - List obsolete directories. # check-old-files - List obsolete files. # check-old-libs - List obsolete libraries. # delete-old - Delete obsolete directories/files/libraries. # delete-old-dirs - Delete obsolete directories. # delete-old-files - Delete obsolete files. # delete-old-libs - Delete obsolete libraries. From the above, it appears as if 'make delete-old' is the same as doing: make delete-old-dirs make delete-old-files make delete-old-libs Running the command indicates otherwise. In fact, make delete-old outputs: >>> Removing old files (only deletes safe to delete libs) and: >>> Old directories removed To remove old libraries run 'make delete-old-libs'. That indicates, to me, that only old files were deleted. No old libraries were touched. What's up here? Which is right? thanks.