[Bug fortran/87172] [9 Regression] Spurious "Derived type 'c_funptr' at (1) has not been declared" error after r263782

[janus at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87172

--- Comment #3 from janus at gcc dot gnu.org ---
(In reply to janus from comment #2)
> Draft patch:

Regtests cleanly on x86_64-linux-gnu.