re PR c/5623 (GCC 3.0.3 crashes when assigning pointer to an array of undefined…

re PR c/5623 (GCC 3.0.3 crashes when assigning pointer to an array of undefined size which is member of a struct)

        PR c/5623
        * c-typeck.c (incomplete_type_error): Handle flexible array members.

From-SVN: r49663

gcc/ChangeLog

 2002-02-10  Richard Henderson  <rth@redhat.com>
 
+	PR c/5623
+	* c-typeck.c (incomplete_type_error): Handle flexible array members.
+
+2002-02-10  Richard Henderson  <rth@redhat.com>
+
 	PR c++/5624
 	* tree.c (append_random_chars): Don't abort if main_input_filename
 	does not exist.

gcc/c-typeck.c

@@ -149,6 +149,11 @@ incomplete_type_error (value, type)
 	case ARRAY_TYPE:
 	  if (TYPE_DOMAIN (type))
 	    {
+	      if (TYPE_MAX_VALUE (TYPE_DOMAIN (type)) == NULL)
+		{
+		  error ("invalid use of flexible array member");
+		  return;
+		}
 	      type = TREE_TYPE (type);
 	      goto retry;
 	    }