https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71770
Jerry DeLisle <jvdelisle at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |RESOLVED Resolution|--- |INVALID --- Comment #8 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> --- I can compile all of the fortran files without error. There are several warnings related to older coding styles, but otherwise OK. I am pretty sure this is a Cygwin installation problem. Closing.