re PR fortran/78474 ([F08] gfortran accepts invalid submodule syntax)

re PR fortran/78474 ([F08] gfortran accepts invalid submodule syntax)

2016-11-27  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/78474
	* module.c (gfc_match_submodule): If there is more than one
	colon, it is a syntax error.

	PR fortran/78331
	* module.c (gfc_use_module): If an smod file does not exist it
	is either because the module does not have a module procedure
	interface or there is an error in the module.

2016-11-27  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/78474
	* gfortran.dg/submodule_22.f08: New test.

	PR fortran/78331
	* gfortran.dg/submodule_21.f08: New test.

From-SVN: r242900