[Bug fortran/96294] Compile error for pointer function

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96294

--- Comment #3 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
See https://gcc.gnu.org/wiki/GFortranStandards.