[Bug fortran/78534] Use a larger integer type for character lengths on 64-bit targets

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78534

--- Comment #21 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
Regrssion tested on x86_64-pc-freeBSD, no failures