[Bug libfortran/81984] NULL string pointer dereferencing forces undefined behaviour in libgfortran

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81984

--- Comment #3 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> A core dump would be better.

Can you please elaborate?