https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71911
--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > I use the administrator user and administrator permissions in Windows host, > so, normally I use the same permission map to root permissions in Cygwin > host. Please double check the permissions of the ALI files, they should be read-only.