resolve.c (gfc_verify_binding_labels): Check for NULL pointer.

2015-10-19  Steven G. Kargl  <kargl@gcc.gnu.org>

	* resolve.c (gfc_verify_binding_labels): Check for NULL pointer.

2015-10-19  Steven G. Kargl  <kargl@gcc.gnu.org>

	* gfortran.dg/pr67900.f90: New tests.

From-SVN: r229013

gcc/fortran/ChangeLog

 2015-10-19  Steven G. Kargl  <kargl@gcc.gnu.org>
 
+	* resolve.c (gfc_verify_binding_labels): Check for NULL pointer.
+
+2015-10-19  Steven G. Kargl  <kargl@gcc.gnu.org>
+
 	PR fortran/68019
 	* decl.c (add_init_expr_to_sym): Remove an assert() to allow an error
 	message to be issued.

gcc/fortran/resolve.c

@@ -10800,7 +10800,7 @@ gfc_verify_binding_labels (gfc_symbol *sym)
       sym->binding_label = NULL;
 
     }
-  else if (sym->attr.flavor == FL_VARIABLE
+  else if (sym->attr.flavor == FL_VARIABLE && module 
 	   && (strcmp (module, gsym->mod_name) != 0
 	       || strcmp (sym->name, gsym->sym_name) != 0))
     {

gcc/testsuite/ChangeLog

+2015-10-19  Steven G. Kargl  <kargl@gcc.gnu.org>
+
+	* gfortran.dg/pr67900.f90: New tests.
+
 2015-10-19  Pierre-Marie de Rodat  <derodat@adacore.com>
 
 	* gnat.dg/opt50.adb: New test.

gcc/testsuite/gfortran.dg/pr67900.f90

+! { dg-do compile }
+! PR fortran/67900
+! Original code contributed by Giorgian Borca-Tasciuc
+! giorgianb at gmail dot com
+! 
+program main
+   implicit none
+   interface f
+      function f_real(x)
+         real, bind(c) :: x
+         real :: f_real
+      end function f_real
+
+      function f_integer(x)
+         integer, bind(c) :: x
+         integer :: f_integer
+      end function f_integer
+   end interface f
+end program main