Makefile question

I recently changed symbol.h

https://lore.kernel.org/all/[email protected]/

Ideally that would make basically every single file rebuild, but it
doesn't.  That means that "enum type" is wrong, which doesn't seem to
cause any crashes but it completely breaks the flow analysis so the
output is garbage.  Garbage output is way worse than crashing.

Does anyone know how to fix Makefiles?

regards,
dan carpenter