

UPDATE: An anonymous white house official told the New York Times that the situation is not as fast moving as the above interpretation suggests. The administration intends to apply the fee to new applications only, regardless of what the stupid proclamation actually says.
GCC in particular comes with the Runtime Library Exception to the GPL. The exception carves out runtime code from the GPL vital licensing condition, and it doesn’t require software compiled by GCC to attribute back to GCC.
So there’s no legal reason to copy in the GPL text into this notice on account of GCC.
Yes, do convey GPL text if you’re also conveying LGPL text.