https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93263
--- Comment #9 from markeggleston at gcc dot gnu.org --- (In reply to Tobias Burnus from comment #7) > (In reply to Tobias Burnus from comment #5) > > Side remark: The Fortran 2018 introduction states: > > > > "the RECURSIVE keyword is advisory only. The NON_RECURSIVE keyword specifies > > that a procedure is not recursive." > > That's a Fortran 2018 change, see also PR 91413 … > > I am not quite sure what implications this have for -fno-automatic > -frecursive etc. As those are vendor extensions, it probably just means that > one just needs to update the documentation. So for Fortran 2018 the default for a procedure should be recursive and prior to Fortran 2018 it should should not. The default standard is GNU which includes everything up Fortran 2018 plus extensions. When this is used I expect that no thought has been made regarding the standard so simply implementing the above would break existing programs. Should this issue be postponed to the stage 1?
