2015-10-26  Louis Krupp  <louis.krupp@zoho.com>

	PR fortran/66056
	* fortran.h: Include namespace pointer in statement label
	structure.
	* symbol.c (gfc_get_st_label): Store pointer to namespace
	that owns the statement label tree in each label.
	(gfc_free_st_label): Use namespace owning statement label
	tree when deleting statement label.
	* io.c: Initialize format_asterisk with NULL namespace pointer.

2015-10-26  Louis Krupp  <louis.krupp@zoho.com>

	PR fortran/66056
	* gfortran.dg/empty_label_typedecl.f90: New test

From-SVN: r229390