[Bug fortran/88653] Is this a compiler bug?

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88653

--- Comment #22 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> Apparently, this is some kind of cygwin problem.

Did you report the problem to cygwin?