Set gir_shared_library argument to be null by default, avoid breaking API

diff --git a/codegen/valagirwriter.vala b/codegen/valagirwriter.vala
index 3a70e683cfa58dc641677a0f04083777391632c9..eff03cada5f7496fa1226057992f81eac1ba6965 100644 (file)
--- a/codegen/valagirwriter.vala
+++ b/codegen/valagirwriter.vala
@@ -142,7 +142,7 @@ public class Vala.GIRWriter : CodeVisitor {
         * @param context  a code context
         * @param filename a relative or absolute filename
         */
-       public void write_file (CodeContext context, string directory, string gir_filename, string gir_namespace, string gir_version, string package, string? gir_shared_library) {
+       public void write_file (CodeContext context, string directory, string gir_filename, string gir_namespace, string gir_version, string package, string? gir_shared_library = null) {
                this.context = context;
                this.directory = directory;
                this.gir_namespace = gir_namespace;