If libgccjit is part of the final executable of a client program does it need to be GPL?

[Hayden Livingston]

I didn't see any FAQ related to this, but if I build my language
compiler on top of libgccjit, and the JIT compiler is part of the
final executable that my client (i.e. a developer using my language)
.. does that final executable need to be released as GPL?

Or libgccjit is covered under the linking exception?