[Bug libfortran/80365] undefined memcpy while writing zero length array on unformatted stream in unix.c

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80365

--- Comment #6 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Forgot the PR in the commit message... here it is:

https://gcc.gnu.org/viewcvs?rev=250473&root=gcc&view=rev