Index: src/CodeGen/CodeGenerator.cc
===================================================================
--- src/CodeGen/CodeGenerator.cc	(revision c14cff1813318f9616a9e814d9a8528eb9ddcbf9)
+++ src/CodeGen/CodeGenerator.cc	(revision dac0aa98c5f36cc84cb4a5902a16d8a34332dbf3)
@@ -212,5 +212,11 @@
 		printDesignators( init->get_designators() );
 		output << "{ ";
-		genCommaList( init->begin_initializers(), init->end_initializers() );
+		if ( init->begin_initializers() == init->end_initializers() ) {
+			// illegal to leave initializer list empty for scalar initializers,
+			// but always legal to have 0
+			output << "0";
+		} else {
+			genCommaList( init->begin_initializers(), init->end_initializers() );
+		}
 		output << " }";
 	}