I am looking over https://docs.adacore.com/gnat_ugn-docs/html/gnat_ugn/gnat_ugn/platform_specific_information.html and see a section in which there is a description of what gnatdll does under the hood. What I would like to have an answer for is if the -I option is for gnatbind or gnatlink, the two GNAT tool chain tools invoked by gnat dll. Thanks, Tom