Index: src/Parser/parser.yy
===================================================================
--- src/Parser/parser.yy	(revision ecae5860965de56ce3fadb77f1a7686686e37c67)
+++ src/Parser/parser.yy	(revision 46fa473b8c84c0fa98b949094061652ebbe3eccd)
@@ -10,6 +10,6 @@
 // Created On       : Sat Sep  1 20:22:55 2001
 // Last Modified By : Peter A. Buhr
-// Last Modified On : Fri Jun  1 17:59:57 2018
-// Update Count     : 3476
+// Last Modified On : Sat Jun  2 17:16:19 2018
+// Update Count     : 3480
 //
 
@@ -1881,18 +1881,15 @@
 
 field_declaration:
-	cfa_field_declaring_list ';'						// CFA, new style field declaration
+	type_specifier field_declaring_list ';'
+		{ $$ = distAttr( $1, $2 ); }
+	| EXTENSION type_specifier field_declaring_list ';'	// GCC
+		{ distExt( $3 ); $$ = distAttr( $2, $3 ); }		// mark all fields in list
+	| typedef_declaration ';'							// CFA
+		{ SemanticError( yylloc, "Typedef in aggregate is currently unimplemented." ); $$ = nullptr; }
+	| cfa_field_declaring_list ';'						// CFA, new style field declaration
 	| EXTENSION cfa_field_declaring_list ';'			// GCC
-		{
-			distExt( $2 );								// mark all fields in list
-			$$ = $2;
-		}
-	| type_specifier field_declaring_list ';'
-		{
-			$$ = distAttr( $1, $2 ); }
-	| EXTENSION type_specifier field_declaring_list ';'	// GCC
-		{
-			distExt( $3 );								// mark all fields in list
-			$$ = distAttr( $2, $3 );
-		}
+		{ distExt( $2 ); $$ = $2; }						// mark all fields in list
+	| cfa_typedef_declaration ';'						// CFA
+		{ SemanticError( yylloc, "Typedef in aggregate is currently unimplemented." ); $$ = nullptr; }
 	| static_assert
 	;