re PR c/14069 (This input file lets gcc crash)

	PR c/14069
	* c-decl.c (finish_struct): Change type of incorrect flexible array
	field into error_mark_node.

	* gcc.dg/20040322-1.c: New test.

From-SVN: r79832

gcc/ChangeLog

+2004-03-22  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c/14069
+	* c-decl.c (finish_struct): Change type of incorrect flexible array
+	field into error_mark_node.
+
 2004-03-22  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	PR target/14580

gcc/c-decl.c

@@ -5018,11 +5018,20 @@ finish_struct (tree t, tree fieldlist, tree attributes)
 	  && TYPE_MAX_VALUE (TYPE_DOMAIN (TREE_TYPE (x))) == NULL_TREE)
 	{
 	  if (TREE_CODE (t) == UNION_TYPE)
-	    error ("%Jflexible array member in union", x);
+	    {
+	      error ("%Jflexible array member in union", x);
+	      TREE_TYPE (x) = error_mark_node;
+	    }
 	  else if (TREE_CHAIN (x) != NULL_TREE)
-	    error ("%Jflexible array member not at end of struct", x);
+	    {
+	      error ("%Jflexible array member not at end of struct", x);
+	      TREE_TYPE (x) = error_mark_node;
+	    }
 	  else if (! saw_named_field)
-	    error ("%Jflexible array member in otherwise empty struct", x);
+	    {
+	      error ("%Jflexible array member in otherwise empty struct", x);
+	      TREE_TYPE (x) = error_mark_node;
+	    }
 	}
 
       if (pedantic && TREE_CODE (t) == RECORD_TYPE

gcc/testsuite/ChangeLog

+2004-03-22  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c/14069
+	* gcc.dg/20040322-1.c: New test.
+
 2004-03-22  Eric Botcazou  <ebotcazou@libertysurf.fr>
 
 	* gcc.dg/ultrasp2.c: Do not pass -m64.  Remove redundant lines.

gcc/testsuite/gcc.dg/20040322-1.c

+/* PR c/14069 */
+/* { dg-do compile } */
+struct S { int a; char b[]; char *c; }; /* { dg-error "error" "flexible array member not" } */
+struct S s = { .b = "foo", .c = .b }; /* { dg-error "error" "parse error before" } */