[Bug fortran/108680] Wrong DTIO arguments with -fdefault-integer-8

[anlauf at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108680

--- Comment #10 from anlauf at gcc dot gnu.org ---
(In reply to Jerry DeLisle from comment #9)
> We can have only one default integer otherwise its not a default. Our
> default integer is KIND=4

Forgive me for being stupid, but leaving aside the -fdefault-integer-*,
where in the standard does it require *default integer* for the unit number?
Could it be integer(2)?  If not, why not?

I simply cannot find the text.