diff -Nru cjs-2.6.2/cjs/importer.cpp cjs-2.8.0/cjs/importer.cpp
--- cjs-2.6.2/cjs/importer.cpp	2015-06-22 20:45:44.000000000 +0000
+++ cjs-2.8.0/cjs/importer.cpp	2015-10-16 12:56:58.000000000 +0000
@@ -911,6 +911,37 @@
 
 GJS_NATIVE_CONSTRUCTOR_DEFINE_ABSTRACT(importer)
 
+static JSBool
+gjs_importer_add_subimporter(JSContext *context,
+                             unsigned   argc,
+                             jsval     *vp)
+{
+    if (argc != 2) {
+        gjs_throw(context, "Must pass two arguments to addSubImporter()");
+        return JS_FALSE;
+    }
+
+    JSObject *importer;
+    jsval *argv = JS_ARGV(context, vp);
+    char *name;
+    char *path;
+    char *search_path[2] = { 0, 0 };
+
+    JS_BeginRequest(context);
+
+    importer = JS_THIS_OBJECT(context, vp);
+
+    gjs_string_to_utf8(context, argv[0], &name);
+    gjs_string_to_utf8(context, argv[1], &path);
+
+    search_path[0] = path;
+    gjs_define_importer(context, importer, name, (const char **)search_path, FALSE);
+
+    JS_EndRequest(context);
+    JS_SET_RVAL(context, vp, JSVAL_VOID);
+    return JS_TRUE;
+}
+
 static void
 importer_finalize(JSFreeOp *fop,
                   JSObject *obj)
@@ -955,6 +986,11 @@
     { NULL }
 };
 
+JSFunctionSpec gjs_global_importer_funcs[] = {
+    { "addSubImporter", JSOP_WRAPPER(gjs_importer_add_subimporter), 0, 0 },
+    { NULL }
+};
+
 static JSObject*
 importer_new(JSContext *context,
              gboolean   is_root)
@@ -1131,13 +1167,14 @@
                          const char **initial_search_path,
                          gboolean     add_standard_search_path)
 {
-    jsval importer;
+    JSObject *importer;
+    jsval v;
 
     JS_BeginRequest(context);
 
-    importer = gjs_get_global_slot(context, GJS_GLOBAL_SLOT_IMPORTS);
+    v = gjs_get_global_slot(context, GJS_GLOBAL_SLOT_IMPORTS);
 
-    if (G_UNLIKELY (!JSVAL_IS_VOID(importer))) {
+    if (G_UNLIKELY (!JSVAL_IS_VOID(v))) {
         gjs_debug(GJS_DEBUG_IMPORTER,
                   "Someone else already created root importer, ignoring second request");
 
@@ -1145,11 +1182,12 @@
         return JS_TRUE;
     }
 
-    importer = OBJECT_TO_JSVAL(gjs_create_importer(context, "imports",
+    importer = gjs_create_importer(context, "imports",
                                                    initial_search_path,
                                                    add_standard_search_path,
-                                                   TRUE, NULL));
-    gjs_set_global_slot(context, GJS_GLOBAL_SLOT_IMPORTS, importer);
+                                                   TRUE, NULL);
+    JS_DefineFunctions(context, importer, &gjs_global_importer_funcs[0]);
+    gjs_set_global_slot(context, GJS_GLOBAL_SLOT_IMPORTS, OBJECT_TO_JSVAL(importer));
 
     JS_EndRequest(context);
     return JS_TRUE;
diff -Nru cjs-2.6.2/configure.ac cjs-2.8.0/configure.ac
--- cjs-2.6.2/configure.ac	2015-06-22 20:45:44.000000000 +0000
+++ cjs-2.8.0/configure.ac	2015-10-16 12:56:58.000000000 +0000
@@ -2,8 +2,8 @@
 # Process this file with autoconf to produce a configure script.
 
 m4_define(pkg_major_version, 2)
-m4_define(pkg_minor_version, 6)
-m4_define(pkg_micro_version, 2)
+m4_define(pkg_minor_version, 8)
+m4_define(pkg_micro_version, 0)
 m4_define(pkg_version, pkg_major_version.pkg_minor_version.pkg_micro_version)
 m4_define(pkg_int_version, (pkg_major_version * 100 + pkg_minor_version) * 100 + pkg_micro_version)
 
diff -Nru cjs-2.6.2/debian/changelog cjs-2.8.0/debian/changelog
--- cjs-2.6.2/debian/changelog	2015-08-10 05:17:08.000000000 +0000
+++ cjs-2.8.0/debian/changelog	2016-01-08 19:19:26.000000000 +0000
@@ -1,8 +1,9 @@
-cjs (2.6.2-1build1) wily; urgency=medium
+cjs (2.8.0-1) unstable; urgency=medium
 
-  * No-change rebuild against libmozjs-24-0v5.
+  * New upstream release (2.8.0).
+  * Update symbols files.
 
- -- Martin Pitt <martin.pitt@ubuntu.com>  Mon, 10 Aug 2015 07:17:08 +0200
+ -- Maximiliano Curia <maxy@debian.org>  Fri, 08 Jan 2016 20:19:26 +0100
 
 cjs (2.6.2-1) unstable; urgency=medium
 
diff -Nru cjs-2.6.2/debian/libcjs0.symbols cjs-2.8.0/debian/libcjs0.symbols
--- cjs-2.6.2/debian/libcjs0.symbols	2015-07-07 13:28:03.000000000 +0000
+++ cjs-2.8.0/debian/libcjs0.symbols	2016-01-08 19:19:26.000000000 +0000
@@ -1,4 +1,4 @@
-# SymbolsHelper-Confirmed: 2.4.2 amd64
+# SymbolsHelper-Confirmed: 2.8.0 amd64
 libcjs.so.0 libcjs0 #MINVER#
  _Z19gjs_type_module_getv@Base 2.4.1
  _Z21gjs_coverage_get_typev@Base 2.4.1
@@ -212,6 +212,7 @@
  gjs_get_prop_verbose_stub@Base 2.0.0
  gjs_get_string_id@Base 2.0.0
  gjs_get_type_name@Base 2.0.0
+ gjs_global_importer_funcs@Base 2.8.0
  gjs_gtk_container_child_set_property@Base 2.4.1
  gjs_gtype_create_gtype_wrapper@Base 2.0.0
  gjs_gtype_create_proto@Base 2.0.0
diff -Nru cjs-2.6.2/debian/source/lintian-overrides cjs-2.8.0/debian/source/lintian-overrides
--- cjs-2.6.2/debian/source/lintian-overrides	1970-01-01 00:00:00.000000000 +0000
+++ cjs-2.8.0/debian/source/lintian-overrides	2016-01-08 19:19:26.000000000 +0000
@@ -0,0 +1 @@
+cjs source: source-is-missing modules/tweener/equations.js