[Bug fortran/66929] [6 regression] ICE with iso_varying_string

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66929

--- Comment #6 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> Maybe stressing again: this is pretty much a blocker for us because it is
> in a 'standard' module which we don't want to modify, and on which all parts
> of our code depend. We'd appreciate a reliable and quick fix soon.

Did you try the patch in comment 1? AFAICT it fixes the issue without
regression.