https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93473
--- Comment #8 from Andrew Benson <abensonca at gmail dot com> --- I think this is PR87103 causing this problem. There's a patch in that PR (simply removing the check for the overlong symbol name also works as the symbol name length is already checked elsewhere). The patch has not been approved though as there's a better fix in the works -see https://gcc.gnu.org/ml/fortran/2018-09/msg00016.html
