> whether your code was dependant on the GPL implementation It's rather "whether your work", not only your code. GNAT generates runtime library dependencies ev

> whether your code was dependant on the GPL implementation It's rather "whether your work", not only your code. GNAT generates runtime library dependencies even if you are not aware of it. So the result is a "combined work", because the runtime library is linked to your code (otherwise your application wouldn't work). See e.g. https://www.gnu.org/licenses/gpl-faq.html#GPLStaticVsDynamic https://www.gnu.org/licenses/gpl-faq.html#GPLStaticVsDynamic