First try at generating grub-emu from modules

disk/loopback.c

@@ -241,7 +241,7 @@ static struct grub_disk_dev grub_loopback_dev =
 
 static grub_extcmd_t cmd;
 
-GRUB_MOD_INIT(loop)
+GRUB_MOD_INIT(loopback)
 {
   cmd = grub_register_extcmd ("loopback", grub_cmd_loopback,
 			      GRUB_COMMAND_FLAG_BOTH,
@@ -250,7 +250,7 @@ GRUB_MOD_INIT(loop)
   grub_disk_dev_register (&grub_loopback_dev);
 }
 
-GRUB_MOD_FINI(loop)
+GRUB_MOD_FINI(loopback)
 {
   grub_unregister_extcmd (cmd);
   grub_disk_dev_unregister (&grub_loopback_dev);