Index: src/CodeGen/CodeGenerator.cc
===================================================================
--- src/CodeGen/CodeGenerator.cc	(revision 971ae895f89a0d93c8f2a9929900852750c396b0)
+++ src/CodeGen/CodeGenerator.cc	(revision de91427b324e52a4106e0ad80e07b006f2292087)
@@ -442,4 +442,15 @@
 		output << ")";
 	}
+
+	void CodeGenerator::visit( AlignofExpr *sizeofExpr ) {
+		// use GCC extension to avoid bumping std to C11
+		output << "__alignof__(";
+		if ( sizeofExpr->get_isType() ) {
+			output << genType( sizeofExpr->get_type(), "" );
+		} else {
+			sizeofExpr->get_expr()->accept( *this );
+		} // if
+		output << ")";
+	}
   
 	void CodeGenerator::visit( LogicalExpr *logicalExpr ) {
Index: src/CodeGen/CodeGenerator.h
===================================================================
--- src/CodeGen/CodeGenerator.h	(revision 971ae895f89a0d93c8f2a9929900852750c396b0)
+++ src/CodeGen/CodeGenerator.h	(revision de91427b324e52a4106e0ad80e07b006f2292087)
@@ -60,4 +60,5 @@
 		virtual void visit( ConstantExpr *constantExpr ); 
 		virtual void visit( SizeofExpr *sizeofExpr );
+		virtual void visit( AlignofExpr *alignofExpr );
 		virtual void visit( LogicalExpr *logicalExpr );
 		virtual void visit( ConditionalExpr *conditionalExpr );