https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85777
--- Comment #8 from Vincent Lefèvre <vincent-gcc at vinc17 dot net> --- (In reply to Eric Gallager from comment #7) > you can still add handwritten rules in Automake Makefiles to be used > alongside the Automake-generated rules. But if the goal is to replace the compilation lines, this is not possible.