Copy libslab from gnome-main-menu, for not breaking 2.26.x

libslab/app-shell-startup.h

@@ -0,0 +1,37 @@
+/*
+ * This file is part of libslab.
+ *
+ * Copyright (c) 2006 Novell, Inc.
+ *
+ * Libslab is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * Libslab is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with libslab; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef __APP_SHELL_STARTUP_H__
+#define __APP_SHELL_STARTUP_H__
+
+#include <bonobo/bonobo-application.h>
+#include <bonobo/bonobo-main.h>
+
+#define DESKTOP_STARTUP_ID "DESKTOP_STARTUP_ID"
+
+G_BEGIN_DECLS
+
+gint apss_new_instance_cb (BonoboApplication * app, gint argc, char *argv[],
+	gpointer data);
+gboolean apss_already_running (int argc, char *argv[], BonoboApplication ** app,
+	const gchar * name, char * startup_id);
+
+G_END_DECLS
+#endif /* __APP_SHELL_STARTUP_H__ */